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ruby/win32/win32.c

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C
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/*
* Copyright (c) 1993, Intergraph Corporation
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the perl README file.
*
* Various Unix compatibility functions and NT specific functions.
*
* Some of this code was derived from the MSDOS port(s) and the OS/2 port.
*
*/
/*
The parts licensed under above copyright notice are marked as "Artistic or
GPL".
Another parts are licensed under Ruby's License.
Copyright (C) 1993-2011 Yukihiro Matsumoto
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
Copyright (C) 2000 Information-technology Promotion Agency, Japan
*/
#undef __STRICT_ANSI__
#include "ruby/ruby.h"
#include "ruby/encoding.h"
#include "ruby/io.h"
#include "ruby/util.h"
#include <fcntl.h>
#include <process.h>
#include <sys/stat.h>
/* #include <sys/wait.h> */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <assert.h>
#include <ctype.h>
#include <windows.h>
#include <winbase.h>
#include <wincon.h>
#include <share.h>
#include <shlobj.h>
#include <mbstring.h>
#include <shlwapi.h>
#if defined _MSC_VER && _MSC_VER >= 1400
#include <crtdbg.h>
#include <rtcapi.h>
#endif
#ifdef __MINGW32__
#include <mswsock.h>
#endif
#ifdef HAVE_AFUNIX_H
# include <afunix.h>
#endif
#include "ruby/win32.h"
#include "ruby/vm.h"
#include "win32/dir.h"
#include "win32/file.h"
#include "id.h"
#include "internal.h"
#include "internal/enc.h"
#include "internal/object.h"
#include "internal/static_assert.h"
#include "ruby/internal/stdbool.h"
#include "encindex.h"
#define isdirsep(x) ((x) == '/' || (x) == '\\')
#if defined _MSC_VER && _MSC_VER <= 1200
# define CharNextExA(cp, p, flags) CharNextExA((WORD)(cp), (p), (flags))
#endif
static int w32_wopen(const WCHAR *file, int oflag, int perm);
static int w32_stati128(const char *path, struct stati128 *st, UINT cp, BOOL lstat);
static char *w32_getenv(const char *name, UINT cp);
#undef getenv
/*
* Do not remove the macros to substitute functions in dln_find.c.
*/
#define DLN_FIND_EXTRA_ARG_DECL ,UINT cp
#define DLN_FIND_EXTRA_ARG ,cp
#define rb_w32_stati128(path, st) w32_stati128(path, st, cp, FALSE)
#define getenv(name) w32_getenv(name, cp) /* Necessarily For dln.c */
#undef CharNext
#define CharNext(p) CharNextExA(cp, (p), 0)
#define dln_find_exe_r rb_w32_udln_find_exe_r
#define dln_find_file_r rb_w32_udln_find_file_r
#include "dln.h"
#include "dln_find.c"
#undef MAXPATHLEN
#undef rb_w32_stati128
#undef dln_find_exe_r
#undef dln_find_file_r
#define dln_find_exe_r(fname, path, buf, size) rb_w32_udln_find_exe_r(fname, path, buf, size, cp)
#define dln_find_file_r(fname, path, buf, size) rb_w32_udln_find_file_r(fname, path, buf, size, cp)
#undef CharNext /* no default cp version */
#undef getenv
#ifndef PATH_MAX
# if defined MAX_PATH
# define PATH_MAX MAX_PATH
# elif defined HAVE_SYS_PARAM_H
# include <sys/param.h>
# define PATH_MAX MAXPATHLEN
# endif
#endif
#define ENV_MAX 512
#undef stat
#undef fclose
#undef close
#undef setsockopt
#undef dup2
#undef strdup
#if RUBY_MSVCRT_VERSION >= 140
# define _filbuf _fgetc_nolock
# define _flsbuf _fputc_nolock
#endif
#define enough_to_get(n) (--(n) >= 0)
#define enough_to_put(n) (--(n) >= 0)
#ifdef WIN32_DEBUG
#define Debug(something) something
#else
#define Debug(something) /* nothing */
#endif
#define TO_SOCKET(x) _get_osfhandle(x)
int rb_w32_reparse_symlink_p(const WCHAR *path);
static int has_redirection(const char *, UINT);
int rb_w32_wait_events(HANDLE *events, int num, DWORD timeout);
static int rb_w32_open_osfhandle(intptr_t osfhandle, int flags);
static int wstati128(const WCHAR *path, struct stati128 *st, BOOL lstat);
VALUE rb_w32_conv_from_wchar(const WCHAR *wstr, rb_encoding *enc);
int ruby_brace_glob_with_enc(const char *str, int flags, ruby_glob_func *func, VALUE arg, rb_encoding *enc);
static FARPROC get_proc_address(const char *module, const char *func, HANDLE *mh);
#define RUBY_CRITICAL if (0) {} else /* just remark */
/* errno mapping */
static const struct {
DWORD winerr;
int err;
} errmap[] = {
{ ERROR_INVALID_FUNCTION, EINVAL },
{ ERROR_FILE_NOT_FOUND, ENOENT },
{ ERROR_PATH_NOT_FOUND, ENOENT },
{ ERROR_TOO_MANY_OPEN_FILES, EMFILE },
{ ERROR_ACCESS_DENIED, EACCES },
{ ERROR_INVALID_HANDLE, EBADF },
{ ERROR_ARENA_TRASHED, ENOMEM },
{ ERROR_NOT_ENOUGH_MEMORY, ENOMEM },
{ ERROR_INVALID_BLOCK, ENOMEM },
{ ERROR_BAD_ENVIRONMENT, E2BIG },
{ ERROR_BAD_FORMAT, ENOEXEC },
{ ERROR_INVALID_ACCESS, EINVAL },
{ ERROR_INVALID_DATA, EINVAL },
{ ERROR_INVALID_DRIVE, ENOENT },
{ ERROR_CURRENT_DIRECTORY, EACCES },
{ ERROR_NOT_SAME_DEVICE, EXDEV },
{ ERROR_NO_MORE_FILES, ENOENT },
{ ERROR_WRITE_PROTECT, EROFS },
{ ERROR_BAD_UNIT, ENODEV },
{ ERROR_NOT_READY, ENXIO },
{ ERROR_BAD_COMMAND, EACCES },
{ ERROR_CRC, EACCES },
{ ERROR_BAD_LENGTH, EACCES },
{ ERROR_SEEK, EIO },
{ ERROR_NOT_DOS_DISK, EACCES },
{ ERROR_SECTOR_NOT_FOUND, EACCES },
{ ERROR_OUT_OF_PAPER, EACCES },
{ ERROR_WRITE_FAULT, EIO },
{ ERROR_READ_FAULT, EIO },
{ ERROR_GEN_FAILURE, EACCES },
{ ERROR_LOCK_VIOLATION, EACCES },
{ ERROR_SHARING_VIOLATION, EACCES },
{ ERROR_WRONG_DISK, EACCES },
{ ERROR_SHARING_BUFFER_EXCEEDED, EACCES },
{ ERROR_BAD_NETPATH, ENOENT },
{ ERROR_NETWORK_ACCESS_DENIED, EACCES },
{ ERROR_BAD_NET_NAME, ENOENT },
{ ERROR_FILE_EXISTS, EEXIST },
{ ERROR_CANNOT_MAKE, EACCES },
{ ERROR_FAIL_I24, EACCES },
{ ERROR_INVALID_PARAMETER, EINVAL },
{ ERROR_NO_PROC_SLOTS, EAGAIN },
{ ERROR_DRIVE_LOCKED, EACCES },
{ ERROR_BROKEN_PIPE, EPIPE },
{ ERROR_DISK_FULL, ENOSPC },
{ ERROR_INVALID_TARGET_HANDLE, EBADF },
{ ERROR_INVALID_HANDLE, EINVAL },
{ ERROR_WAIT_NO_CHILDREN, ECHILD },
{ ERROR_CHILD_NOT_COMPLETE, ECHILD },
{ ERROR_DIRECT_ACCESS_HANDLE, EBADF },
{ ERROR_NEGATIVE_SEEK, EINVAL },
{ ERROR_SEEK_ON_DEVICE, EACCES },
{ ERROR_DIR_NOT_EMPTY, ENOTEMPTY },
{ ERROR_DIRECTORY, ENOTDIR },
{ ERROR_NOT_LOCKED, EACCES },
{ ERROR_BAD_PATHNAME, ENOENT },
{ ERROR_MAX_THRDS_REACHED, EAGAIN },
{ ERROR_LOCK_FAILED, EACCES },
{ ERROR_ALREADY_EXISTS, EEXIST },
{ ERROR_INVALID_STARTING_CODESEG, ENOEXEC },
{ ERROR_INVALID_STACKSEG, ENOEXEC },
{ ERROR_INVALID_MODULETYPE, ENOEXEC },
{ ERROR_INVALID_EXE_SIGNATURE, ENOEXEC },
{ ERROR_EXE_MARKED_INVALID, ENOEXEC },
{ ERROR_BAD_EXE_FORMAT, ENOEXEC },
{ ERROR_ITERATED_DATA_EXCEEDS_64k,ENOEXEC },
{ ERROR_INVALID_MINALLOCSIZE, ENOEXEC },
{ ERROR_DYNLINK_FROM_INVALID_RING,ENOEXEC },
{ ERROR_IOPL_NOT_ENABLED, ENOEXEC },
{ ERROR_INVALID_SEGDPL, ENOEXEC },
{ ERROR_AUTODATASEG_EXCEEDS_64k, ENOEXEC },
{ ERROR_RING2SEG_MUST_BE_MOVABLE, ENOEXEC },
{ ERROR_RELOC_CHAIN_XEEDS_SEGLIM, ENOEXEC },
{ ERROR_INFLOOP_IN_RELOC_CHAIN, ENOEXEC },
{ ERROR_FILENAME_EXCED_RANGE, ENOENT },
{ ERROR_NESTING_NOT_ALLOWED, EAGAIN },
#ifndef ERROR_PIPE_LOCAL
#define ERROR_PIPE_LOCAL 229L
#endif
{ ERROR_PIPE_LOCAL, EPIPE },
{ ERROR_BAD_PIPE, EPIPE },
{ ERROR_PIPE_BUSY, EAGAIN },
{ ERROR_NO_DATA, EPIPE },
{ ERROR_PIPE_NOT_CONNECTED, EPIPE },
{ ERROR_OPERATION_ABORTED, EINTR },
{ ERROR_NOT_ENOUGH_QUOTA, ENOMEM },
{ ERROR_MOD_NOT_FOUND, ENOENT },
{ ERROR_PRIVILEGE_NOT_HELD, EACCES, },
{ ERROR_CANT_RESOLVE_FILENAME, ELOOP, },
{ WSAEINTR, EINTR },
{ WSAEBADF, EBADF },
{ WSAEACCES, EACCES },
{ WSAEFAULT, EFAULT },
{ WSAEINVAL, EINVAL },
{ WSAEMFILE, EMFILE },
{ WSAEWOULDBLOCK, EWOULDBLOCK },
{ WSAEINPROGRESS, EINPROGRESS },
{ WSAEALREADY, EALREADY },
{ WSAENOTSOCK, ENOTSOCK },
{ WSAEDESTADDRREQ, EDESTADDRREQ },
{ WSAEMSGSIZE, EMSGSIZE },
{ WSAEPROTOTYPE, EPROTOTYPE },
{ WSAENOPROTOOPT, ENOPROTOOPT },
{ WSAEPROTONOSUPPORT, EPROTONOSUPPORT },
{ WSAESOCKTNOSUPPORT, ESOCKTNOSUPPORT },
{ WSAEOPNOTSUPP, EOPNOTSUPP },
{ WSAEPFNOSUPPORT, EPFNOSUPPORT },
{ WSAEAFNOSUPPORT, EAFNOSUPPORT },
{ WSAEADDRINUSE, EADDRINUSE },
{ WSAEADDRNOTAVAIL, EADDRNOTAVAIL },
{ WSAENETDOWN, ENETDOWN },
{ WSAENETUNREACH, ENETUNREACH },
{ WSAENETRESET, ENETRESET },
{ WSAECONNABORTED, ECONNABORTED },
{ WSAECONNRESET, ECONNRESET },
{ WSAENOBUFS, ENOBUFS },
{ WSAEISCONN, EISCONN },
{ WSAENOTCONN, ENOTCONN },
{ WSAESHUTDOWN, ESHUTDOWN },
{ WSAETOOMANYREFS, ETOOMANYREFS },
{ WSAETIMEDOUT, ETIMEDOUT },
{ WSAECONNREFUSED, ECONNREFUSED },
{ WSAELOOP, ELOOP },
{ WSAENAMETOOLONG, ENAMETOOLONG },
{ WSAEHOSTDOWN, EHOSTDOWN },
{ WSAEHOSTUNREACH, EHOSTUNREACH },
{ WSAEPROCLIM, EPROCLIM },
{ WSAENOTEMPTY, ENOTEMPTY },
{ WSAEUSERS, EUSERS },
{ WSAEDQUOT, EDQUOT },
{ WSAESTALE, ESTALE },
{ WSAEREMOTE, EREMOTE },
};
/* License: Ruby's */
int
rb_w32_map_errno(DWORD winerr)
{
int i;
if (winerr == 0) {
return 0;
}
for (i = 0; i < (int)(sizeof(errmap) / sizeof(*errmap)); i++) {
if (errmap[i].winerr == winerr) {
return errmap[i].err;
}
}
if (winerr >= WSABASEERR) {
return winerr;
}
return EINVAL;
}
#define map_errno rb_w32_map_errno
static const char *NTLoginName;
static OSVERSIONINFO osver;
/* License: Artistic or GPL */
static void
get_version(void)
{
memset(&osver, 0, sizeof(OSVERSIONINFO));
osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osver);
}
#ifdef _M_IX86
/* License: Artistic or GPL */
DWORD
rb_w32_osid(void)
{
return osver.dwPlatformId;
}
#endif
/* License: Artistic or GPL */
DWORD
rb_w32_osver(void)
{
return osver.dwMajorVersion;
}
/* simulate flock by locking a range on the file */
/* License: Artistic or GPL */
#define LK_ERR(f,i) \
do { \
if (f) \
i = 0; \
else { \
DWORD err = GetLastError(); \
if (err == ERROR_LOCK_VIOLATION || err == ERROR_IO_PENDING) \
errno = EWOULDBLOCK; \
else if (err == ERROR_NOT_LOCKED) \
i = 0; \
else \
errno = map_errno(err); \
} \
} while (0)
#define LK_LEN ULONG_MAX
/* License: Artistic or GPL */
static uintptr_t
flock_winnt(uintptr_t self, int argc, uintptr_t* argv)
{
OVERLAPPED o;
int i = -1;
const HANDLE fh = (HANDLE)self;
const int oper = argc;
memset(&o, 0, sizeof(o));
switch (oper) {
case LOCK_SH: /* shared lock */
LK_ERR(LockFileEx(fh, 0, 0, LK_LEN, LK_LEN, &o), i);
break;
case LOCK_EX: /* exclusive lock */
LK_ERR(LockFileEx(fh, LOCKFILE_EXCLUSIVE_LOCK, 0, LK_LEN, LK_LEN, &o), i);
break;
case LOCK_SH|LOCK_NB: /* non-blocking shared lock */
LK_ERR(LockFileEx(fh, LOCKFILE_FAIL_IMMEDIATELY, 0, LK_LEN, LK_LEN, &o), i);
break;
case LOCK_EX|LOCK_NB: /* non-blocking exclusive lock */
LK_ERR(LockFileEx(fh,
LOCKFILE_EXCLUSIVE_LOCK|LOCKFILE_FAIL_IMMEDIATELY,
0, LK_LEN, LK_LEN, &o), i);
break;
case LOCK_UN: /* unlock lock */
case LOCK_UN|LOCK_NB: /* unlock is always non-blocking, I hope */
LK_ERR(UnlockFileEx(fh, 0, LK_LEN, LK_LEN, &o), i);
break;
default: /* unknown */
errno = EINVAL;
break;
}
return i;
}
#undef LK_ERR
/* License: Artistic or GPL */
int
flock(int fd, int oper)
{
const asynchronous_func_t locker = flock_winnt;
return rb_w32_asynchronize(locker,
(VALUE)_get_osfhandle(fd), oper, NULL,
(DWORD)-1);
}
/* License: Ruby's */
static inline WCHAR *
translate_wchar(WCHAR *p, int from, int to)
{
for (; *p; p++) {
if (*p == from)
*p = to;
}
return p;
}
/* License: Ruby's */
static inline char *
translate_char(char *p, int from, int to, UINT cp)
{
while (*p) {
if ((unsigned char)*p == from)
*p = to;
p = CharNextExA(cp, p, 0);
}
return p;
}
#ifndef CSIDL_LOCAL_APPDATA
#define CSIDL_LOCAL_APPDATA 28
#endif
#ifndef CSIDL_COMMON_APPDATA
#define CSIDL_COMMON_APPDATA 35
#endif
#ifndef CSIDL_WINDOWS
#define CSIDL_WINDOWS 36
#endif
#ifndef CSIDL_SYSTEM
#define CSIDL_SYSTEM 37
#endif
#ifndef CSIDL_PROFILE
#define CSIDL_PROFILE 40
#endif
/* License: Ruby's */
static BOOL
get_special_folder(int n, WCHAR *buf, size_t len)
{
LPITEMIDLIST pidl;
LPMALLOC alloc;
BOOL f = FALSE;
typedef BOOL (WINAPI *get_path_func)(LPITEMIDLIST, WCHAR*, DWORD, int);
static get_path_func func = (get_path_func)-1;
if (func == (get_path_func)-1) {
func = (get_path_func)
get_proc_address("shell32", "SHGetPathFromIDListEx", NULL);
}
if (!func && len < MAX_PATH) return FALSE;
if (SHGetSpecialFolderLocation(NULL, n, &pidl) == 0) {
if (func) {
f = func(pidl, buf, len, 0);
}
else {
f = SHGetPathFromIDListW(pidl, buf);
}
SHGetMalloc(&alloc);
alloc->lpVtbl->Free(alloc, pidl);
alloc->lpVtbl->Release(alloc);
}
return f;
}
/* License: Ruby's */
static void
regulate_path(WCHAR *path)
{
WCHAR *p = translate_wchar(path, L'\\', L'/');
if (p - path == 2 && path[1] == L':') {
*p++ = L'/';
*p = L'\0';
}
}
/* License: Ruby's */
static FARPROC
get_proc_address(const char *module, const char *func, HANDLE *mh)
{
HANDLE h;
FARPROC ptr;
if (mh)
h = LoadLibrary(module);
else
h = GetModuleHandle(module);
if (!h)
return NULL;
ptr = GetProcAddress(h, func);
if (mh) {
if (ptr)
*mh = h;
else
FreeLibrary(h);
}
return ptr;
}
/* License: Ruby's */
VALUE
rb_w32_special_folder(int type)
{
WCHAR path[PATH_MAX];
if (!get_special_folder(type, path, numberof(path))) return Qnil;
regulate_path(path);
return rb_w32_conv_from_wchar(path, rb_filesystem_encoding());
}
#if defined _MSC_VER && _MSC_VER <= 1200
/* License: Ruby's */
#define GetSystemWindowsDirectoryW GetWindowsDirectoryW
#endif
/* License: Ruby's */
UINT
rb_w32_system_tmpdir(WCHAR *path, UINT len)
{
static const WCHAR temp[] = L"temp";
WCHAR *p;
if (!get_special_folder(CSIDL_LOCAL_APPDATA, path, len)) {
if (GetSystemWindowsDirectoryW(path, len)) return 0;
}
p = translate_wchar(path, L'\\', L'/');
if (*(p - 1) != L'/') *p++ = L'/';
if ((UINT)(p - path + numberof(temp)) >= len) return 0;
memcpy(p, temp, sizeof(temp));
return (UINT)(p - path + numberof(temp) - 1);
}
/*
Return user's home directory using environment variables combinations.
Memory allocated by this function should be manually freed
afterwards with xfree.
Try:
HOME, USERPROFILE, HOMEDRIVE + HOMEPATH environment variables
Special Folders - Profile and Personal
*/
WCHAR *
rb_w32_home_dir(void)
{
WCHAR *buffer = NULL;
size_t buffer_len = MAX_PATH, len = 0;
enum {
HOME_NONE, ENV_HOME, ENV_USERPROFILE, ENV_DRIVEPATH
} home_type = HOME_NONE;
if ((len = GetEnvironmentVariableW(L"HOME", NULL, 0)) != 0) {
buffer_len = len;
home_type = ENV_HOME;
}
else if ((len = GetEnvironmentVariableW(L"USERPROFILE", NULL, 0)) != 0) {
buffer_len = len;
home_type = ENV_USERPROFILE;
}
else if ((len = GetEnvironmentVariableW(L"HOMEDRIVE", NULL, 0)) != 0) {
buffer_len = len;
if ((len = GetEnvironmentVariableW(L"HOMEPATH", NULL, 0)) != 0) {
buffer_len += len;
home_type = ENV_DRIVEPATH;
}
}
/* allocate buffer */
buffer = ALLOC_N(WCHAR, buffer_len);
switch (home_type) {
case ENV_HOME:
GetEnvironmentVariableW(L"HOME", buffer, buffer_len);
break;
case ENV_USERPROFILE:
GetEnvironmentVariableW(L"USERPROFILE", buffer, buffer_len);
break;
case ENV_DRIVEPATH:
len = GetEnvironmentVariableW(L"HOMEDRIVE", buffer, buffer_len);
GetEnvironmentVariableW(L"HOMEPATH", buffer + len, buffer_len - len);
break;
default:
if (!get_special_folder(CSIDL_PROFILE, buffer, buffer_len) &&
!get_special_folder(CSIDL_PERSONAL, buffer, buffer_len)) {
xfree(buffer);
return NULL;
}
REALLOC_N(buffer, WCHAR, lstrlenW(buffer) + 1);
break;
}
/* sanitize backslashes with forwardslashes */
regulate_path(buffer);
return buffer;
}
/* License: Ruby's */
static void
init_env(void)
{
static const WCHAR TMPDIR[] = L"TMPDIR";
struct {WCHAR name[6], eq, val[ENV_MAX];} wk;
DWORD len;
BOOL f;
#define env wk.val
#define set_env_val(vname) do { \
typedef char wk_name_offset[(numberof(wk.name) - (numberof(vname) - 1)) * 2 + 1]; \
WCHAR *const buf = wk.name + sizeof(wk_name_offset) / 2; \
MEMCPY(buf, vname, WCHAR, numberof(vname) - 1); \
_wputenv(buf); \
} while (0)
wk.eq = L'=';
if (!GetEnvironmentVariableW(L"HOME", env, numberof(env))) {
f = FALSE;
if (GetEnvironmentVariableW(L"HOMEDRIVE", env, numberof(env)))
len = lstrlenW(env);
else
len = 0;
if (GetEnvironmentVariableW(L"HOMEPATH", env + len, numberof(env) - len) || len) {
f = TRUE;
}
else if (GetEnvironmentVariableW(L"USERPROFILE", env, numberof(env))) {
f = TRUE;
}
else if (get_special_folder(CSIDL_PROFILE, env, numberof(env))) {
f = TRUE;
}
else if (get_special_folder(CSIDL_PERSONAL, env, numberof(env))) {
f = TRUE;
}
if (f) {
regulate_path(env);
set_env_val(L"HOME");
}
}
if (!GetEnvironmentVariableW(L"USER", env, numberof(env))) {
if (!GetEnvironmentVariableW(L"USERNAME", env, numberof(env)) &&
!GetUserNameW(env, (len = numberof(env), &len))) {
NTLoginName = "<Unknown>";
}
else {
set_env_val(L"USER");
NTLoginName = rb_w32_wstr_to_mbstr(CP_UTF8, env, -1, NULL);
}
}
else {
NTLoginName = rb_w32_wstr_to_mbstr(CP_UTF8, env, -1, NULL);
}
if (!GetEnvironmentVariableW(TMPDIR, env, numberof(env)) &&
!GetEnvironmentVariableW(L"TMP", env, numberof(env)) &&
!GetEnvironmentVariableW(L"TEMP", env, numberof(env)) &&
rb_w32_system_tmpdir(env, numberof(env))) {
set_env_val(TMPDIR);
}
#undef env
#undef set_env_val
}
static void init_stdhandle(void);
#if RUBY_MSVCRT_VERSION >= 80
/* License: Ruby's */
static void
invalid_parameter(const wchar_t *expr, const wchar_t *func, const wchar_t *file, unsigned int line, uintptr_t dummy)
{
// nothing to do
}
int ruby_w32_rtc_error;
# ifndef __MINGW32__
/* License: Ruby's */
RBIMPL_ATTR_NONNULL((5))
RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 5, 6)
static int __cdecl
rtc_error_handler(int e, const char *src, int line, const char *exe, const char *fmt, ...)
{
va_list ap;
VALUE str;
if (!ruby_w32_rtc_error) return 0;
str = rb_sprintf("%s:%d: ", src, line);
va_start(ap, fmt);
rb_str_vcatf(str, fmt, ap);
va_end(ap);
rb_str_cat(str, "\n", 1);
rb_write_error2(RSTRING_PTR(str), RSTRING_LEN(str));
return 0;
}
# endif
#endif
static CRITICAL_SECTION select_mutex;
static CRITICAL_SECTION socklist_mutex;
static st_table *socklist = NULL;
static CRITICAL_SECTION conlist_mutex;
static st_table *conlist = NULL;
#define conlist_disabled ((st_table *)-1)
#define thread_exclusive(obj) \
for (bool exclusive_for_##obj = (EnterCriticalSection(&obj##_mutex), true); \
exclusive_for_##obj; \
exclusive_for_##obj = (LeaveCriticalSection(&obj##_mutex), false))
static CRITICAL_SECTION uenvarea_mutex;
static char *uenvarea;
/* License: Ruby's */
struct constat {
struct {
int state, seq[16], reverse;
WORD attr;
COORD saved;
} vt100;
};
enum {constat_init = -2, constat_esc = -1, constat_seq = 0};
/* License: Ruby's */
static int
free_conlist(st_data_t key, st_data_t val, st_data_t arg)
{
xfree((struct constat *)val);
return ST_DELETE;
}
/* License: Ruby's */
static void
constat_delete(HANDLE h)
{
thread_exclusive(conlist) {
if (conlist && conlist != conlist_disabled) {
st_data_t key = (st_data_t)h, val;
st_delete(conlist, &key, &val);
xfree((struct constat *)val);
}
}
}
/* License: Ruby's */
static void
exit_handler(void)
{
WSACleanup();
DeleteCriticalSection(&select_mutex);
DeleteCriticalSection(&socklist_mutex);
DeleteCriticalSection(&conlist_mutex);
thread_exclusive(uenvarea) {
if (uenvarea) {
free(uenvarea);
uenvarea = NULL;
}
}
DeleteCriticalSection(&uenvarea_mutex);
}
/* License: Ruby's */
static void
vm_exit_handler(ruby_vm_t *vm)
{
EnterCriticalSection(&socklist_mutex);
if (socklist) {
st_free_table(socklist);
socklist = NULL;
}
LeaveCriticalSection(&socklist_mutex);
EnterCriticalSection(&conlist_mutex);
if (conlist && conlist != conlist_disabled) {
st_foreach(conlist, free_conlist, 0);
st_free_table(conlist);
conlist = NULL;
}
LeaveCriticalSection(&conlist_mutex);
}
#define ATOMIC_LONG_CAS(var, oldval, newval) InterlockedCompareExchange(&(var), (newval), (oldval))
/* License: Ruby's */
static void
install_vm_exit_handler(void)
{
static LONG installed = 0;
LONG i;
while ((i = ATOMIC_LONG_CAS(installed, 0, -1)) != 1) {
if (i != 0) {
Sleep(1);
continue;
}
ruby_vm_at_exit(vm_exit_handler);
ATOMIC_LONG_CAS(installed, -1, 1);
break;
}
}
/* License: Artistic or GPL */
static void
StartSockets(void)
{
WORD version;
WSADATA retdata;
//
// initialize the winsock interface and insure that it's
// cleaned up at exit.
//
version = MAKEWORD(2, 0);
if (WSAStartup(version, &retdata))
rb_fatal("Unable to locate winsock library!");
if (LOBYTE(retdata.wVersion) != 2)
rb_fatal("could not find version 2 of winsock dll");
InitializeCriticalSection(&select_mutex);
InitializeCriticalSection(&socklist_mutex);
InitializeCriticalSection(&conlist_mutex);
atexit(exit_handler);
}
#define MAKE_SOCKDATA(af, fl) ((int)((((int)af)<<4)|((fl)&0xFFFF)))
#define GET_FAMILY(v) ((int)(((v)>>4)&0xFFFF))
#define GET_FLAGS(v) ((int)((v)&0xFFFF))
/* License: Ruby's */
static inline int
socklist_insert(SOCKET sock, int flag)
{
int ret;
thread_exclusive(socklist) {
if (!socklist) {
socklist = st_init_numtable();
install_vm_exit_handler();
}
ret = st_insert(socklist, (st_data_t)sock, (st_data_t)flag);
}
return ret;
}
/* License: Ruby's */
static inline int
socklist_lookup(SOCKET sock, int *flagp)
{
st_data_t data;
int ret = 0;
thread_exclusive(socklist) {
if (!socklist) continue;
ret = st_lookup(socklist, (st_data_t)sock, &data);
if (ret && flagp)
*flagp = (int)data;
}
return ret;
}
/* License: Ruby's */
static inline int
socklist_delete(SOCKET *sockp, int *flagp)
{
st_data_t key;
st_data_t data;
int ret = 0;
thread_exclusive(socklist) {
if (!socklist) continue;
key = (st_data_t)*sockp;
if (flagp)
data = (st_data_t)*flagp;
ret = st_delete(socklist, &key, &data);
if (ret) {
*sockp = (SOCKET)key;
if (flagp)
*flagp = (int)data;
}
}
return ret;
}
#if RUBY_MSVCRT_VERSION >= 80
# ifdef __MINGW32__
# define _CrtSetReportMode(type,mode) ((void)0)
# define _RTC_SetErrorFunc(func) ((void)0)
# endif
static void set_pioinfo_extra(void);
#endif
static int w32_cmdvector(const WCHAR *, char ***, UINT, rb_encoding *);
//
// Initialization stuff
//
/* License: Ruby's */
void
rb_w32_sysinit(int *argc, char ***argv)
{
#if RUBY_MSVCRT_VERSION >= 80
_CrtSetReportMode(_CRT_ASSERT, 0);
_set_invalid_parameter_handler(invalid_parameter);
_RTC_SetErrorFunc(rtc_error_handler);
set_pioinfo_extra();
#endif
SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOGPFAULTERRORBOX);
get_version();
//
// subvert cmd.exe's feeble attempt at command line parsing
//
*argc = w32_cmdvector(GetCommandLineW(), argv, CP_UTF8, &OnigEncodingUTF_8);
//
// Now set up the correct time stuff
//
tzset();
InitializeCriticalSection(&uenvarea_mutex);
init_env();
init_stdhandle();
// Initialize Winsock
StartSockets();
}
char *
getlogin(void)
{
return (char *)NTLoginName;
}
#define MAXCHILDNUM 256 /* max num of child processes */
/* License: Ruby's */
static struct ChildRecord {
HANDLE hProcess; /* process handle */
rb_pid_t pid; /* process id */
} ChildRecord[MAXCHILDNUM];
/* License: Ruby's */
#define FOREACH_CHILD(v) do { \
struct ChildRecord* v; \
for (v = ChildRecord; v < ChildRecord + sizeof(ChildRecord) / sizeof(ChildRecord[0]); ++v)
#define END_FOREACH_CHILD } while (0)
/* License: Ruby's */
static struct ChildRecord *
FindChildSlot(rb_pid_t pid)
{
FOREACH_CHILD(child) {
if (child->pid == pid) {
return child;
}
} END_FOREACH_CHILD;
return NULL;
}
/* License: Ruby's */
static struct ChildRecord *
FindChildSlotByHandle(HANDLE h)
{
FOREACH_CHILD(child) {
if (child->hProcess == h) {
return child;
}
} END_FOREACH_CHILD;
return NULL;
}
/* License: Ruby's */
static void
CloseChildHandle(struct ChildRecord *child)
{
HANDLE h = child->hProcess;
child->hProcess = NULL;
child->pid = 0;
CloseHandle(h);
}
/* License: Ruby's */
static struct ChildRecord *
FindFreeChildSlot(void)
{
FOREACH_CHILD(child) {
if (!child->pid) {
child->pid = -1; /* lock the slot */
child->hProcess = NULL;
return child;
}
} END_FOREACH_CHILD;
return NULL;
}
/*
ruby -lne 'BEGIN{$cmds = Hash.new(0); $mask = 1}'
-e '$cmds[$_.downcase] |= $mask' -e '$mask <<= 1 if ARGF.eof'
-e 'END{$cmds.sort.each{|n,f|puts " \"\\#{f.to_s(8)}\" #{n.dump} + 1,"}}'
98cmd ntcmd
*/
#define InternalCmdsMax 8
static const char szInternalCmds[][InternalCmdsMax+2] = {
"\2" "assoc",
"\3" "break",
"\3" "call",
"\3" "cd",
"\1" "chcp",
"\3" "chdir",
"\3" "cls",
"\2" "color",
"\3" "copy",
"\1" "ctty",
"\3" "date",
"\3" "del",
"\3" "dir",
"\3" "echo",
"\2" "endlocal",
"\3" "erase",
"\3" "exit",
"\3" "for",
"\2" "ftype",
"\3" "goto",
"\3" "if",
"\1" "lfnfor",
"\1" "lh",
"\1" "lock",
"\3" "md",
"\3" "mkdir",
"\2" "move",
"\3" "path",
"\3" "pause",
"\2" "popd",
"\3" "prompt",
"\2" "pushd",
"\3" "rd",
"\3" "rem",
"\3" "ren",
"\3" "rename",
"\3" "rmdir",
"\3" "set",
"\2" "setlocal",
"\3" "shift",
"\2" "start",
"\3" "time",
"\2" "title",
"\1" "truename",
"\3" "type",
"\1" "unlock",
"\3" "ver",
"\3" "verify",
"\3" "vol",
};
/* License: Ruby's */
static int
internal_match(const void *key, const void *elem)
{
return strncmp(key, ((const char *)elem) + 1, InternalCmdsMax);
}
/* License: Ruby's */
static int
is_command_com(const char *interp)
{
int i = strlen(interp) - 11;
if ((i == 0 || (i > 0 && isdirsep(interp[i-1]))) &&
strcasecmp(interp+i, "command.com") == 0) {
return 1;
}
return 0;
}
static int internal_cmd_match(const char *cmdname, int nt);
/* License: Ruby's */
static int
is_internal_cmd(const char *cmd, int nt)
{
char cmdname[9], *b = cmdname, c;
do {
if (!(c = *cmd++)) return 0;
} while (isspace(c));
if (c == '@')
return 1;
while (isalpha(c)) {
*b++ = tolower(c);
if (b == cmdname + sizeof(cmdname)) return 0;
c = *cmd++;
}
if (c == '.') c = *cmd;
switch (c) {
case '<': case '>': case '|':
return 1;
case '\0': case ' ': case '\t': case '\n':
break;
default:
return 0;
}
*b = 0;
return internal_cmd_match(cmdname, nt);
}
/* License: Ruby's */
static int
internal_cmd_match(const char *cmdname, int nt)
{
char *nm;
nm = bsearch(cmdname, szInternalCmds,
sizeof(szInternalCmds) / sizeof(*szInternalCmds),
sizeof(*szInternalCmds),
internal_match);
if (!nm || !(nm[0] & (nt ? 2 : 1)))
return 0;
return 1;
}
/* License: Ruby's */
SOCKET
rb_w32_get_osfhandle(int fh)
{
return _get_osfhandle(fh);
}
/* License: Ruby's */
static int
join_argv(char *cmd, char *const *argv, BOOL escape, UINT cp, int backslash)
{
const char *p, *s;
char *q, *const *t;
int len, n, bs, quote;
for (t = argv, q = cmd, len = 0; (p = *t) != 0; t++) {
quote = 0;
s = p;
if (!*p || strpbrk(p, " \t\"'")) {
quote = 1;
len++;
if (q) *q++ = '"';
}
for (bs = 0; *p; ++p) {
switch (*p) {
case '\\':
++bs;
break;
case '"':
len += n = p - s;
if (q) {
memcpy(q, s, n);
q += n;
}
s = p;
len += ++bs;
if (q) {
memset(q, '\\', bs);
q += bs;
}
bs = 0;
break;
case '<': case '>': case '|': case '^':
if (escape && !quote) {
len += (n = p - s) + 1;
if (q) {
memcpy(q, s, n);
q += n;
*q++ = '^';
}
s = p;
break;
}
default:
bs = 0;
p = CharNextExA(cp, p, 0) - 1;
break;
}
}
len += (n = p - s) + 1;
if (quote) len++;
if (q) {
memcpy(q, s, n);
if (backslash > 0) {
--backslash;
q[n] = 0;
translate_char(q, '/', '\\', cp);
}
q += n;
if (quote) *q++ = '"';
*q++ = ' ';
}
}
if (q > cmd) --len;
if (q) {
if (q > cmd) --q;
*q = '\0';
}
return len;
}
/* License: Ruby's */
#define STRNDUPV(ptr, v, src, len) \
(((char *)memcpy(((ptr) = ALLOCV((v), (len) + 1)), (src), (len)))[len] = 0)
/* License: Ruby's */
static int
check_spawn_mode(int mode)
{
switch (mode) {
case P_NOWAIT:
case P_OVERLAY:
return 0;
default:
errno = EINVAL;
return -1;
}
}
/* License: Ruby's */
static rb_pid_t
child_result(struct ChildRecord *child, int mode)
{
DWORD exitcode;
if (!child) {
return -1;
}
if (mode == P_OVERLAY) {
WaitForSingleObject(child->hProcess, INFINITE);
GetExitCodeProcess(child->hProcess, &exitcode);
CloseChildHandle(child);
_exit(exitcode);
}
return child->pid;
}
/* License: Ruby's */
static int
CreateChild(struct ChildRecord *child, const WCHAR *cmd, const WCHAR *prog, HANDLE hInput, HANDLE hOutput, HANDLE hError, DWORD dwCreationFlags)
{
BOOL fRet;
STARTUPINFOW aStartupInfo;
PROCESS_INFORMATION aProcessInformation;
SECURITY_ATTRIBUTES sa;
if (!cmd && !prog) {
errno = EFAULT;
return FALSE;
}
if (!child) {
errno = EAGAIN;
return FALSE;
}
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
memset(&aStartupInfo, 0, sizeof(aStartupInfo));
memset(&aProcessInformation, 0, sizeof(aProcessInformation));
aStartupInfo.cb = sizeof(aStartupInfo);
aStartupInfo.dwFlags = STARTF_USESTDHANDLES;
if (hInput) {
aStartupInfo.hStdInput = hInput;
}
else {
aStartupInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
}
if (hOutput) {
aStartupInfo.hStdOutput = hOutput;
}
else {
aStartupInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
}
if (hError) {
aStartupInfo.hStdError = hError;
}
else {
aStartupInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
}
dwCreationFlags |= NORMAL_PRIORITY_CLASS;
if (lstrlenW(cmd) > 32767) {
child->pid = 0; /* release the slot */
errno = E2BIG;
return FALSE;
}
RUBY_CRITICAL {
fRet = CreateProcessW(prog, (WCHAR *)cmd, &sa, &sa,
sa.bInheritHandle, dwCreationFlags, NULL, NULL,
&aStartupInfo, &aProcessInformation);
errno = map_errno(GetLastError());
}
if (!fRet) {
child->pid = 0; /* release the slot */
return FALSE;
}
CloseHandle(aProcessInformation.hThread);
child->hProcess = aProcessInformation.hProcess;
child->pid = (rb_pid_t)aProcessInformation.dwProcessId;
return TRUE;
}
/* License: Ruby's */
static int
is_batch(const char *cmd)
{
int len = strlen(cmd);
if (len <= 4) return 0;
cmd += len - 4;
if (*cmd++ != '.') return 0;
if (strcasecmp(cmd, "bat") == 0) return 1;
if (strcasecmp(cmd, "cmd") == 0) return 1;
return 0;
}
#define filecp rb_w32_filecp
#define mbstr_to_wstr rb_w32_mbstr_to_wstr
#define wstr_to_mbstr rb_w32_wstr_to_mbstr
#define acp_to_wstr(str, plen) mbstr_to_wstr(CP_ACP, str, -1, plen)
#define wstr_to_acp(str, plen) wstr_to_mbstr(CP_ACP, str, -1, plen)
#define filecp_to_wstr(str, plen) mbstr_to_wstr(filecp(), str, -1, plen)
#define wstr_to_filecp(str, plen) wstr_to_mbstr(filecp(), str, -1, plen)
#define utf8_to_wstr(str, plen) mbstr_to_wstr(CP_UTF8, str, -1, plen)
#define wstr_to_utf8(str, plen) wstr_to_mbstr(CP_UTF8, str, -1, plen)
/* License: Ruby's */
HANDLE
rb_w32_start_process(const char *abspath, char *const *argv, int out_fd)
{
/* NOTE: This function is used by RJIT worker, so it can be used parallelly with
Ruby's main thread. So functions touching things shared with main thread can't
be used, like `ALLOCV` that may trigger GC or `FindFreeChildSlot` that finds
a slot from shared memory without atomic locks. */
struct ChildRecord child;
char *cmd;
size_t len;
WCHAR *wcmd = NULL, *wprog = NULL;
HANDLE outHandle = NULL;
if (out_fd) {
outHandle = (HANDLE)rb_w32_get_osfhandle(out_fd);
}
len = join_argv(NULL, argv, FALSE, filecp(), 1);
cmd = alloca(sizeof(char) * len);
join_argv(cmd, argv, FALSE, filecp(), 1);
if (!(wcmd = mbstr_to_wstr(filecp(), cmd, -1, NULL))) {
errno = E2BIG;
return NULL;
}
if (!(wprog = mbstr_to_wstr(filecp(), abspath, -1, NULL))) {
errno = E2BIG;
return NULL;
}
if (!CreateChild(&child, wcmd, wprog, NULL, outHandle, outHandle, 0)) {
return NULL;
}
free(wcmd);
free(wprog);
return child.hProcess;
}
/* License: Artistic or GPL */
static rb_pid_t
w32_spawn(int mode, const char *cmd, const char *prog, UINT cp)
{
char fbuf[PATH_MAX];
char *p = NULL;
const char *shell = NULL;
WCHAR *wcmd = NULL, *wshell = NULL;
int e = 0;
rb_pid_t ret = -1;
VALUE v = 0;
VALUE v2 = 0;
int sep = 0;
char *cmd_sep = NULL;
if (check_spawn_mode(mode)) return -1;
if (prog) {
if (!(p = dln_find_exe_r(prog, NULL, fbuf, sizeof(fbuf)))) {
shell = prog;
}
else {
shell = p;
translate_char(p, '/', '\\', cp);
}
}
else {
int redir = -1;
int nt;
while (ISSPACE(*cmd)) cmd++;
if ((shell = w32_getenv("RUBYSHELL", cp)) && (redir = has_redirection(cmd, cp))) {
size_t shell_len = strlen(shell);
size_t cmd_len = strlen(cmd) + sizeof(" -c ") + 2;
char *tmp = ALLOCV(v, shell_len + cmd_len);
memcpy(tmp, shell, shell_len + 1);
translate_char(tmp, '/', '\\', cp);
snprintf(tmp + shell_len, cmd_len, " -c \"%s\"", cmd);
cmd = tmp;
}
else if ((shell = w32_getenv("COMSPEC", cp)) &&
(nt = !is_command_com(shell),
(redir < 0 ? has_redirection(cmd, cp) : redir) ||
is_internal_cmd(cmd, nt))) {
size_t cmd_len = strlen(shell) + strlen(cmd) + sizeof(" /c ") + (nt ? 2 : 0);
char *tmp = ALLOCV(v, cmd_len);
snprintf(tmp, cmd_len, nt ? "%s /c \"%s\"" : "%s /c %s", shell, cmd);
cmd = tmp;
}
else {
int len = 0, quote = (*cmd == '"') ? '"' : (*cmd == '\'') ? '\'' : 0;
int slash = 0;
for (prog = cmd + !!quote;; prog = CharNextExA(cp, prog, 0)) {
if (*prog == '/') slash = 1;
if (!*prog) {
len = prog - cmd;
if (slash) {
STRNDUPV(p, v2, cmd, len);
cmd = p;
}
shell = cmd;
break;
}
if ((unsigned char)*prog == quote) {
len = prog++ - cmd - 1;
STRNDUPV(p, v2, cmd + 1, len);
shell = p;
break;
}
if (quote) continue;
if (ISSPACE(*prog) || strchr("<>|*?\"", *prog)) {
len = prog - cmd;
STRNDUPV(p, v2, cmd, len + (slash ? strlen(prog) : 0));
if (slash) {
cmd = p;
sep = *(cmd_sep = &p[len]);
*cmd_sep = '\0';
}
shell = p;
break;
}
}
shell = dln_find_exe_r(shell, NULL, fbuf, sizeof(fbuf));
if (p && slash) translate_char(p, '/', '\\', cp);
if (!shell) {
shell = p ? p : cmd;
}
else {
len = strlen(shell);
if (strchr(shell, ' ')) quote = -1;
if (shell == fbuf) {
p = fbuf;
}
else if (shell != p && strchr(shell, '/')) {
STRNDUPV(p, v2, shell, len);
shell = p;
}
if (p) translate_char(p, '/', '\\', cp);
if (is_batch(shell)) {
int alen = strlen(prog);
cmd = p = ALLOCV(v, len + alen + (quote ? 2 : 0) + 1);
if (quote) *p++ = '"';
memcpy(p, shell, len);
p += len;
if (quote) *p++ = '"';
memcpy(p, prog, alen + 1);
shell = 0;
}
}
}
}
if (!e && shell && !(wshell = mbstr_to_wstr(cp, shell, -1, NULL))) e = E2BIG;
if (cmd_sep) *cmd_sep = sep;
if (!e && cmd && !(wcmd = mbstr_to_wstr(cp, cmd, -1, NULL))) e = E2BIG;
if (v2) ALLOCV_END(v2);
if (v) ALLOCV_END(v);
if (!e) {
struct ChildRecord *child = FindFreeChildSlot();
if (CreateChild(child, wcmd, wshell, NULL, NULL, NULL, 0)) {
ret = child_result(child, mode);
}
}
free(wshell);
free(wcmd);
if (e) errno = e;
return ret;
}
/* License: Ruby's */
rb_pid_t
rb_w32_spawn(int mode, const char *cmd, const char *prog)
{
/* assume ACP */
return w32_spawn(mode, cmd, prog, filecp());
}
/* License: Ruby's */
rb_pid_t
rb_w32_uspawn(int mode, const char *cmd, const char *prog)
{
return w32_spawn(mode, cmd, prog, CP_UTF8);
}
/* License: Artistic or GPL */
static rb_pid_t
w32_aspawn_flags(int mode, const char *prog, char *const *argv, DWORD flags, UINT cp)
{
int c_switch = 0;
size_t len;
BOOL ntcmd = FALSE, tmpnt;
const char *shell;
char *cmd, fbuf[PATH_MAX];
WCHAR *wcmd = NULL, *wprog = NULL;
int e = 0;
rb_pid_t ret = -1;
VALUE v = 0;
if (check_spawn_mode(mode)) return -1;
if (!prog) prog = argv[0];
if ((shell = w32_getenv("COMSPEC", cp)) &&
internal_cmd_match(prog, tmpnt = !is_command_com(shell))) {
ntcmd = tmpnt;
prog = shell;
c_switch = 1;
}
else if ((cmd = dln_find_exe_r(prog, NULL, fbuf, sizeof(fbuf)))) {
if (cmd == prog) strlcpy(cmd = fbuf, prog, sizeof(fbuf));
translate_char(cmd, '/', '\\', cp);
prog = cmd;
}
else if (strchr(prog, '/')) {
len = strlen(prog);
if (len < sizeof(fbuf))
strlcpy(cmd = fbuf, prog, sizeof(fbuf));
else
STRNDUPV(cmd, v, prog, len);
translate_char(cmd, '/', '\\', cp);
prog = cmd;
}
if (c_switch || is_batch(prog)) {
char *progs[2];
progs[0] = (char *)prog;
progs[1] = NULL;
len = join_argv(NULL, progs, ntcmd, cp, 1);
if (c_switch) len += 3;
else ++argv;
if (argv[0]) len += join_argv(NULL, argv, ntcmd, cp, 0);
cmd = ALLOCV(v, len);
join_argv(cmd, progs, ntcmd, cp, 1);
if (c_switch) strlcat(cmd, " /c", len);
if (argv[0]) join_argv(cmd + strlcat(cmd, " ", len), argv, ntcmd, cp, 0);
prog = c_switch ? shell : 0;
}
else {
len = join_argv(NULL, argv, FALSE, cp, 1);
cmd = ALLOCV(v, len);
join_argv(cmd, argv, FALSE, cp, 1);
}
if (!e && cmd && !(wcmd = mbstr_to_wstr(cp, cmd, -1, NULL))) e = E2BIG;
if (v) ALLOCV_END(v);
if (!e && prog && !(wprog = mbstr_to_wstr(cp, prog, -1, NULL))) e = E2BIG;
if (!e) {
struct ChildRecord *child = FindFreeChildSlot();
if (CreateChild(child, wcmd, wprog, NULL, NULL, NULL, flags)) {
ret = child_result(child, mode);
}
}
free(wprog);
free(wcmd);
if (e) errno = e;
return ret;
}
/* License: Ruby's */
rb_pid_t
rb_w32_aspawn_flags(int mode, const char *prog, char *const *argv, DWORD flags)
{
/* assume ACP */
return w32_aspawn_flags(mode, prog, argv, flags, filecp());
}
/* License: Ruby's */
rb_pid_t
rb_w32_uaspawn_flags(int mode, const char *prog, char *const *argv, DWORD flags)
{
return w32_aspawn_flags(mode, prog, argv, flags, CP_UTF8);
}
/* License: Ruby's */
rb_pid_t
rb_w32_aspawn(int mode, const char *prog, char *const *argv)
{
return w32_aspawn_flags(mode, prog, argv, 0, filecp());
}
/* License: Ruby's */
rb_pid_t
rb_w32_uaspawn(int mode, const char *prog, char *const *argv)
{
return rb_w32_uaspawn_flags(mode, prog, argv, 0);
}
/* License: Artistic or GPL */
typedef struct _NtCmdLineElement {
struct _NtCmdLineElement *next;
char *str;
long len;
int flags;
} NtCmdLineElement;
//
// Possible values for flags
//
#define NTGLOB 0x1 // element contains a wildcard
#define NTMALLOC 0x2 // string in element was malloc'ed
#define NTSTRING 0x4 // element contains a quoted string
/* License: Ruby's */
static int
insert(const char *path, VALUE vinfo, void *enc)
{
NtCmdLineElement *tmpcurr;
NtCmdLineElement ***tail = (NtCmdLineElement ***)vinfo;
tmpcurr = (NtCmdLineElement *)malloc(sizeof(NtCmdLineElement));
if (!tmpcurr) return -1;
MEMZERO(tmpcurr, NtCmdLineElement, 1);
tmpcurr->len = strlen(path);
tmpcurr->str = strdup(path);
if (!tmpcurr->str) return -1;
tmpcurr->flags |= NTMALLOC;
**tail = tmpcurr;
*tail = &tmpcurr->next;
return 0;
}
/* License: Artistic or GPL */
static NtCmdLineElement **
cmdglob(NtCmdLineElement *patt, NtCmdLineElement **tail, UINT cp, rb_encoding *enc)
{
char buffer[PATH_MAX], *buf = buffer;
NtCmdLineElement **last = tail;
int status;
if (patt->len >= PATH_MAX)
if (!(buf = malloc(patt->len + 1))) return 0;
memcpy(buf, patt->str, patt->len);
buf[patt->len] = '\0';
translate_char(buf, '\\', '/', cp);
status = ruby_brace_glob_with_enc(buf, 0, insert, (VALUE)&tail, enc);
if (buf != buffer)
free(buf);
if (status || last == tail) return 0;
if (patt->flags & NTMALLOC)
free(patt->str);
free(patt);
return tail;
}
//
// Check a command string to determine if it has I/O redirection
// characters that require it to be executed by a command interpreter
//
/* License: Artistic or GPL */
static int
has_redirection(const char *cmd, UINT cp)
{
char quote = '\0';
const char *ptr;
//
// Scan the string, looking for redirection characters (< or >), pipe
// character (|) or newline (\n) that are not in a quoted string
//
for (ptr = cmd; *ptr;) {
switch (*ptr) {
case '\'':
case '\"':
if (!quote)
quote = *ptr;
else if (quote == *ptr)
quote = '\0';
ptr++;
break;
case '>':
case '<':
case '|':
case '&':
case '\n':
if (!quote)
return TRUE;
ptr++;
break;
case '%':
if (*++ptr != '_' && !ISALPHA(*ptr)) break;
while (*++ptr == '_' || ISALNUM(*ptr));
if (*ptr++ == '%') return TRUE;
break;
case '\\':
ptr++;
default:
ptr = CharNextExA(cp, ptr, 0);
break;
}
}
return FALSE;
}
/* License: Ruby's */
static inline WCHAR *
skipspace(WCHAR *ptr)
{
while (ISSPACE(*ptr))
ptr++;
return ptr;
}
/* License: Artistic or GPL */
static int
w32_cmdvector(const WCHAR *cmd, char ***vec, UINT cp, rb_encoding *enc)
{
int globbing, len;
int elements, strsz, done;
int slashes, escape;
WCHAR *ptr, *base, *cmdline;
char *cptr, *buffer;
char **vptr;
WCHAR quote;
NtCmdLineElement *curr, **tail;
NtCmdLineElement *cmdhead = NULL, **cmdtail = &cmdhead;
//
// just return if we don't have a command line
//
while (ISSPACE(*cmd))
cmd++;
if (!*cmd) {
*vec = NULL;
return 0;
}
ptr = cmdline = wcsdup(cmd);
//
// Ok, parse the command line, building a list of CmdLineElements.
// When we've finished, and it's an input command (meaning that it's
// the processes argv), we'll do globing and then build the argument
// vector.
// The outer loop does one iteration for each element seen.
// The inner loop does one iteration for each character in the element.
//
while (*(ptr = skipspace(ptr))) {
base = ptr;
quote = slashes = globbing = escape = 0;
for (done = 0; !done && *ptr; ) {
//
// Switch on the current character. We only care about the
// white-space characters, the wild-card characters, and the
// quote characters.
//
switch (*ptr) {
case L'\\':
if (quote != L'\'') slashes++;
break;
case L' ':
case L'\t':
case L'\n':
//
// if we're not in a string, then we're finished with this
// element
//
if (!quote) {
*ptr = 0;
done = 1;
}
break;
case L'*':
case L'?':
case L'[':
case L'{':
//
// record the fact that this element has a wildcard character
// N.B. Don't glob if inside a single quoted string
//
if (quote != L'\'')
globbing++;
slashes = 0;
break;
case L'\'':
case L'\"':
//
// if we're already in a string, see if this is the
// terminating close-quote. If it is, we're finished with
// the string, but not necessarily with the element.
// If we're not already in a string, start one.
//
if (!(slashes & 1)) {
if (!quote)
quote = *ptr;
else if (quote == *ptr) {
if (quote == L'"' && quote == ptr[1])
ptr++;
quote = L'\0';
}
}
escape++;
slashes = 0;
break;
default:
ptr = CharNextW(ptr);
slashes = 0;
continue;
}
ptr++;
}
//
// when we get here, we've got a pair of pointers to the element,
// base and ptr. Base points to the start of the element while ptr
// points to the character following the element.
//
len = ptr - base;
if (done) --len;
//
// if it's an input vector element and it's enclosed by quotes,
// we can remove them.
//
if (escape) {
WCHAR *p = base, c;
slashes = quote = 0;
while (p < base + len) {
switch (c = *p) {
case L'\\':
p++;
if (quote != L'\'') slashes++;
break;
case L'\'':
case L'"':
if (!(slashes & 1) && quote && quote != c) {
p++;
slashes = 0;
break;
}
memcpy(p - ((slashes + 1) >> 1), p + (~slashes & 1),
sizeof(WCHAR) * (base + len - p));
len -= ((slashes + 1) >> 1) + (~slashes & 1);
p -= (slashes + 1) >> 1;
if (!(slashes & 1)) {
if (quote) {
if (quote == L'"' && quote == *p)
p++;
quote = L'\0';
}
else
quote = c;
}
else
p++;
slashes = 0;
break;
default:
p = CharNextW(p);
slashes = 0;
break;
}
}
}
curr = (NtCmdLineElement *)calloc(sizeof(NtCmdLineElement), 1);
if (!curr) goto do_nothing;
curr->str = rb_w32_wstr_to_mbstr(cp, base, len, &curr->len);
curr->flags |= NTMALLOC;
if (globbing && (tail = cmdglob(curr, cmdtail, cp, enc))) {
cmdtail = tail;
}
else {
*cmdtail = curr;
cmdtail = &curr->next;
}
}
//
// Almost done!
// Count up the elements, then allocate space for a vector of pointers
// (argv) and a string table for the elements.
//
for (elements = 0, strsz = 0, curr = cmdhead; curr; curr = curr->next) {
elements++;
strsz += (curr->len + 1);
}
len = (elements+1)*sizeof(char *) + strsz;
buffer = (char *)malloc(len);
if (!buffer) {
do_nothing:
while ((curr = cmdhead) != 0) {
cmdhead = curr->next;
if (curr->flags & NTMALLOC) free(curr->str);
free(curr);
}
free(cmdline);
for (vptr = *vec; *vptr; ++vptr);
return vptr - *vec;
}
//
// make vptr point to the start of the buffer
// and cptr point to the area we'll consider the string table.
//
// buffer (*vec)
// |
// V ^---------------------V
// +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
// | | | .... | NULL | | ..... |\0 | | ..... |\0 |...
// +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
// |- elements+1 -| ^ 1st element ^ 2nd element
vptr = (char **) buffer;
cptr = buffer + (elements+1) * sizeof(char *);
while ((curr = cmdhead) != 0) {
memcpy(cptr, curr->str, curr->len);
cptr[curr->len] = '\0';
*vptr++ = cptr;
cptr += curr->len + 1;
cmdhead = curr->next;
if (curr->flags & NTMALLOC) free(curr->str);
free(curr);
}
*vptr = 0;
*vec = (char **) buffer;
free(cmdline);
return elements;
}
//
// UNIX compatible directory access functions for NT
//
typedef DWORD (WINAPI *get_final_path_func)(HANDLE, WCHAR*, DWORD, DWORD);
static get_final_path_func get_final_path;
static DWORD WINAPI
get_final_path_fail(HANDLE f, WCHAR *buf, DWORD len, DWORD flag)
{
return 0;
}
static DWORD WINAPI
get_final_path_unknown(HANDLE f, WCHAR *buf, DWORD len, DWORD flag)
{
/* Since Windows Vista and Windows Server 2008 */
get_final_path_func func = (get_final_path_func)
get_proc_address("kernel32", "GetFinalPathNameByHandleW", NULL);
if (!func) func = get_final_path_fail;
get_final_path = func;
return func(f, buf, len, flag);
}
static get_final_path_func get_final_path = get_final_path_unknown;
/* License: Ruby's */
/* TODO: better name */
static HANDLE
open_special(const WCHAR *path, DWORD access, DWORD flags)
{
const DWORD share_mode =
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
return CreateFileW(path, access, share_mode, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS|flags, NULL);
}
//
// The idea here is to read all the directory names into a string table
// (separated by nulls) and when one of the other dir functions is called
// return the pointer to the current file name.
//
/* License: Ruby's */
#define GetBit(bits, i) ((bits)[(i) / CHAR_BIT] & (1 << (i) % CHAR_BIT))
#define SetBit(bits, i) ((bits)[(i) / CHAR_BIT] |= (1 << (i) % CHAR_BIT))
#define BitOfIsDir(n) ((n) * 2)
#define BitOfIsRep(n) ((n) * 2 + 1)
#define DIRENT_PER_CHAR (CHAR_BIT / 2)
static const WCHAR namespace_prefix[] = {L'\\', L'\\', L'?', L'\\'};
enum {FINAL_PATH_MAX = PATH_MAX + numberof(namespace_prefix)};
/* License: Artistic or GPL */
static HANDLE
open_dir_handle(const WCHAR *filename, WIN32_FIND_DATAW *fd)
{
HANDLE fh;
WCHAR fullname[FINAL_PATH_MAX + rb_strlen_lit("\\*")];
WCHAR *p;
int len = 0;
//
// Create the search pattern
//
fh = open_special(filename, 0, 0);
if (fh != INVALID_HANDLE_VALUE) {
len = get_final_path(fh, fullname, FINAL_PATH_MAX, 0);
CloseHandle(fh);
if (len >= FINAL_PATH_MAX) {
errno = ENAMETOOLONG;
return INVALID_HANDLE_VALUE;
}
}
if (!len) {
len = lstrlenW(filename);
if (len >= PATH_MAX) {
errno = ENAMETOOLONG;
return INVALID_HANDLE_VALUE;
}
MEMCPY(fullname, filename, WCHAR, len);
}
p = &fullname[len-1];
if (!(isdirsep(*p) || *p == L':')) *++p = L'\\';
*++p = L'*';
*++p = L'\0';
//
// do the FindFirstFile call
//
fh = FindFirstFileW(fullname, fd);
if (fh == INVALID_HANDLE_VALUE) {
errno = map_errno(GetLastError());
}
return fh;
}
/* License: Artistic or GPL */
static DIR *
w32_wopendir(const WCHAR *wpath)
{
struct stati128 sbuf;
WIN32_FIND_DATAW fd;
HANDLE fh;
DIR *p;
long pathlen;
long len;
long altlen;
long idx;
WCHAR *tmpW;
char *tmp;
//
// check to see if we've got a directory
//
if (wstati128(wpath, &sbuf, FALSE) < 0) {
return NULL;
}
if (!(sbuf.st_mode & S_IFDIR) &&
(!ISALPHA(wpath[0]) || wpath[1] != L':' || wpath[2] != L'\0' ||
((1 << ((wpath[0] & 0x5f) - 'A')) & GetLogicalDrives()) == 0)) {
errno = ENOTDIR;
return NULL;
}
fh = open_dir_handle(wpath, &fd);
if (fh == INVALID_HANDLE_VALUE) {
return NULL;
}
//
// Get us a DIR structure
//
p = calloc(sizeof(DIR), 1);
if (p == NULL)
return NULL;
pathlen = lstrlenW(wpath);
idx = 0;
//
// loop finding all the files that match the wildcard
// (which should be all of them in this directory!).
// the variable idx should point one past the null terminator
// of the previous string found.
//
do {
len = lstrlenW(fd.cFileName) + 1;
altlen = lstrlenW(fd.cAlternateFileName) + 1;
//
// bump the string table size by enough for the
// new name and it's null terminator
//
tmpW = realloc(p->start, (idx + len + altlen) * sizeof(WCHAR));
if (!tmpW) {
error:
rb_w32_closedir(p);
FindClose(fh);
errno = ENOMEM;
return NULL;
}
p->start = tmpW;
memcpy(&p->start[idx], fd.cFileName, len * sizeof(WCHAR));
memcpy(&p->start[idx + len], fd.cAlternateFileName, altlen * sizeof(WCHAR));
if (p->nfiles % DIRENT_PER_CHAR == 0) {
tmp = realloc(p->bits, p->nfiles / DIRENT_PER_CHAR + 1);
if (!tmp)
goto error;
p->bits = tmp;
p->bits[p->nfiles / DIRENT_PER_CHAR] = 0;
}
if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
SetBit(p->bits, BitOfIsDir(p->nfiles));
if (fd.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
WCHAR *tmppath = malloc((pathlen + len + 1) * sizeof(WCHAR));
memcpy(tmppath, wpath, pathlen * sizeof(WCHAR));
tmppath[pathlen] = L'\\';
memcpy(tmppath + pathlen + 1, fd.cFileName, len * sizeof(WCHAR));
if (rb_w32_reparse_symlink_p(tmppath))
SetBit(p->bits, BitOfIsRep(p->nfiles));
free(tmppath);
}
p->nfiles++;
idx += len + altlen;
} while (FindNextFileW(fh, &fd));
FindClose(fh);
p->size = idx;
p->curr = p->start;
return p;
}
/* License: Ruby's */
UINT
filecp(void)
{
UINT cp = AreFileApisANSI() ? CP_ACP : CP_OEMCP;
return cp;
}
/* License: Ruby's */
char *
rb_w32_wstr_to_mbstr(UINT cp, const WCHAR *wstr, int clen, long *plen)
{
char *ptr;
int len = WideCharToMultiByte(cp, 0, wstr, clen, NULL, 0, NULL, NULL);
if (!(ptr = malloc(len))) return 0;
WideCharToMultiByte(cp, 0, wstr, clen, ptr, len, NULL, NULL);
if (plen) {
/* exclude NUL only if NUL-terminated string */
if (clen == -1) --len;
*plen = len;
}
return ptr;
}
/* License: Ruby's */
WCHAR *
rb_w32_mbstr_to_wstr(UINT cp, const char *str, int clen, long *plen)
{
/* This is used by RJIT worker. Do not trigger GC or call Ruby method here. */
WCHAR *ptr;
int len = MultiByteToWideChar(cp, 0, str, clen, NULL, 0);
if (!(ptr = malloc(sizeof(WCHAR) * len))) return 0;
MultiByteToWideChar(cp, 0, str, clen, ptr, len);
if (plen) {
/* exclude NUL only if NUL-terminated string */
if (clen == -1) --len;
*plen = len;
}
return ptr;
}
/* License: Ruby's */
DIR *
rb_w32_opendir(const char *filename)
{
DIR *ret;
WCHAR *wpath = filecp_to_wstr(filename, NULL);
if (!wpath)
return NULL;
ret = w32_wopendir(wpath);
free(wpath);
return ret;
}
/* License: Ruby's */
DIR *
rb_w32_uopendir(const char *filename)
{
DIR *ret;
WCHAR *wpath = utf8_to_wstr(filename, NULL);
if (!wpath)
return NULL;
ret = w32_wopendir(wpath);
free(wpath);
return ret;
}
//
// Move to next entry
//
/* License: Artistic or GPL */
static void
move_to_next_entry(DIR *dirp)
{
if (dirp->curr) {
dirp->loc++;
dirp->curr += lstrlenW(dirp->curr) + 1;
dirp->curr += lstrlenW(dirp->curr) + 1;
if (dirp->curr >= (dirp->start + dirp->size)) {
dirp->curr = NULL;
}
}
}
//
// Readdir just returns the current string pointer and bumps the
// string pointer to the next entry.
//
/* License: Ruby's */
static BOOL
win32_direct_conv(const WCHAR *file, const WCHAR *alt, struct direct *entry, const void *enc)
{
UINT cp = *((UINT *)enc);
if (!(entry->d_name = wstr_to_mbstr(cp, file, -1, &entry->d_namlen)))
return FALSE;
if (alt && *alt) {
long altlen = 0;
entry->d_altname = wstr_to_mbstr(cp, alt, -1, &altlen);
entry->d_altlen = altlen;
}
return TRUE;
}
/* License: Ruby's */
VALUE
rb_w32_conv_from_wchar(const WCHAR *wstr, rb_encoding *enc)
{
VALUE src;
long len = lstrlenW(wstr);
int encindex = rb_enc_to_index(enc);
if (encindex == ENCINDEX_UTF_16LE) {
return rb_enc_str_new((char *)wstr, len * sizeof(WCHAR), enc);
}
else {
#if SIZEOF_INT < SIZEOF_LONG
# error long should equal to int on Windows
#endif
int clen = rb_long2int(len);
len = WideCharToMultiByte(CP_UTF8, 0, wstr, clen, NULL, 0, NULL, NULL);
src = rb_enc_str_new(0, len, rb_enc_from_index(ENCINDEX_UTF_8));
WideCharToMultiByte(CP_UTF8, 0, wstr, clen, RSTRING_PTR(src), len, NULL, NULL);
}
switch (encindex) {
case ENCINDEX_ASCII_8BIT:
case ENCINDEX_US_ASCII:
/* assume UTF-8 */
case ENCINDEX_UTF_8:
/* do nothing */
return src;
}
return rb_str_conv_enc_opts(src, NULL, enc, ECONV_UNDEF_REPLACE, Qnil);
}
/* License: Ruby's */
char *
rb_w32_conv_from_wstr(const WCHAR *wstr, long *lenp, rb_encoding *enc)
{
VALUE str = rb_w32_conv_from_wchar(wstr, enc);
long len;
char *ptr;
if (NIL_P(str)) return wstr_to_utf8(wstr, lenp);
*lenp = len = RSTRING_LEN(str);
memcpy(ptr = malloc(len + 1), RSTRING_PTR(str), len);
ptr[len] = '\0';
return ptr;
}
/* License: Ruby's */
static BOOL
ruby_direct_conv(const WCHAR *file, const WCHAR *alt, struct direct *entry, const void *enc)
{
if (!(entry->d_name = rb_w32_conv_from_wstr(file, &entry->d_namlen, enc)))
return FALSE;
if (alt && *alt) {
long altlen = 0;
entry->d_altname = rb_w32_conv_from_wstr(alt, &altlen, enc);
entry->d_altlen = altlen;
}
return TRUE;
}
/* License: Artistic or GPL */
static struct direct *
readdir_internal(DIR *dirp, BOOL (*conv)(const WCHAR *, const WCHAR *, struct direct *, const void *), const void *enc)
{
static long dummy_ino = 0;
if (dirp->curr) {
//
// first set up the structure to return
//
free(dirp->dirstr.d_name);
free(dirp->dirstr.d_altname);
dirp->dirstr.d_altname = 0;
dirp->dirstr.d_altlen = 0;
conv(dirp->curr, dirp->curr + lstrlenW(dirp->curr) + 1, &dirp->dirstr, enc);
//
// Fake inode
//
dirp->dirstr.d_ino = (ino_t)(InterlockedIncrement(&dummy_ino) - 1);
//
// Attributes
//
/* ignore FILE_ATTRIBUTE_DIRECTORY as unreliable for reparse points */
if (GetBit(dirp->bits, BitOfIsRep(dirp->loc)))
dirp->dirstr.d_type = DT_LNK;
else if (GetBit(dirp->bits, BitOfIsDir(dirp->loc)))
dirp->dirstr.d_type = DT_DIR;
else
dirp->dirstr.d_type = DT_REG;
//
// Now set up for the next call to readdir
//
move_to_next_entry(dirp);
return &(dirp->dirstr);
}
else
return NULL;
}
/* License: Ruby's */
struct direct *
rb_w32_readdir(DIR *dirp, rb_encoding *enc)
{
int idx = rb_enc_to_index(enc);
if (idx == ENCINDEX_ASCII_8BIT) {
const UINT cp = filecp();
return readdir_internal(dirp, win32_direct_conv, &cp);
}
else if (idx == ENCINDEX_UTF_8) {
const UINT cp = CP_UTF8;
return readdir_internal(dirp, win32_direct_conv, &cp);
}
else
return readdir_internal(dirp, ruby_direct_conv, enc);
}
/* License: Ruby's */
struct direct *
rb_w32_ureaddir(DIR *dirp)
{
const UINT cp = CP_UTF8;
return readdir_internal(dirp, win32_direct_conv, &cp);
}
//
// Telldir returns the current string pointer position
//
/* License: Artistic or GPL */
long
rb_w32_telldir(DIR *dirp)
{
return dirp->loc;
}
//
// Seekdir moves the string pointer to a previously saved position
// (Saved by telldir).
/* License: Ruby's */
void
rb_w32_seekdir(DIR *dirp, long loc)
{
if (dirp->loc > loc) rb_w32_rewinddir(dirp);
while (dirp->curr && dirp->loc < loc) {
move_to_next_entry(dirp);
}
}
//
// Rewinddir resets the string pointer to the start
//
/* License: Artistic or GPL */
void
rb_w32_rewinddir(DIR *dirp)
{
dirp->curr = dirp->start;
dirp->loc = 0;
}
//
// This just free's the memory allocated by opendir
//
/* License: Artistic or GPL */
void
rb_w32_closedir(DIR *dirp)
{
if (dirp) {
free(dirp->dirstr.d_name);
free(dirp->dirstr.d_altname);
free(dirp->start);
free(dirp->bits);
free(dirp);
}
}
#if RUBY_MSVCRT_VERSION >= 140
typedef struct {
union
{
FILE _public_file;
char* _ptr;
};
char* _base;
int _cnt;
long _flags;
long _file;
int _charbuf;
int _bufsiz;
char* _tmpfname;
CRITICAL_SECTION _lock;
} vcruntime_file;
#define FILE_COUNT(stream) ((vcruntime_file*)stream)->_cnt
#define FILE_READPTR(stream) ((vcruntime_file*)stream)->_ptr
#define FILE_FILENO(stream) ((vcruntime_file*)stream)->_file
#else
#define FILE_COUNT(stream) stream->_cnt
#define FILE_READPTR(stream) stream->_ptr
#define FILE_FILENO(stream) stream->_file
#endif
/* License: Ruby's */
#if RUBY_MSVCRT_VERSION >= 140
typedef char lowio_text_mode;
typedef char lowio_pipe_lookahead[3];
typedef struct {
CRITICAL_SECTION lock;
intptr_t osfhnd; // underlying OS file HANDLE
__int64 startpos; // File position that matches buffer start
unsigned char osfile; // Attributes of file (e.g., open in text mode?)
lowio_text_mode textmode;
lowio_pipe_lookahead _pipe_lookahead;
uint8_t unicode : 1; // Was the file opened as unicode?
uint8_t utf8translations : 1; // Buffer contains translations other than CRLF
uint8_t dbcsBufferUsed : 1; // Is the dbcsBuffer in use?
char dbcsBuffer; // Buffer for the lead byte of DBCS when converting from DBCS to Unicode
} ioinfo;
#else
typedef struct {
intptr_t osfhnd; /* underlying OS file HANDLE */
char osfile; /* attributes of file (e.g., open in text mode?) */
char pipech; /* one char buffer for handles opened on pipes */
int lockinitflag;
CRITICAL_SECTION lock;
#if RUBY_MSVCRT_VERSION >= 80
char textmode;
char pipech2[2];
#endif
} ioinfo;
#endif
#if !defined _CRTIMP || defined __MINGW32__
#undef _CRTIMP
#define _CRTIMP __declspec(dllimport)
#endif
#if RUBY_MSVCRT_VERSION >= 140
static ioinfo ** __pioinfo = NULL;
#define IOINFO_L2E 6
#else
EXTERN_C _CRTIMP ioinfo * __pioinfo[];
#define IOINFO_L2E 5
#endif
static inline ioinfo* _pioinfo(int);
#define IOINFO_ARRAY_ELTS (1 << IOINFO_L2E)
#define _osfhnd(i) (_pioinfo(i)->osfhnd)
#define _osfile(i) (_pioinfo(i)->osfile)
#define rb_acrt_lowio_lock_fh(i) EnterCriticalSection(&_pioinfo(i)->lock)
#define rb_acrt_lowio_unlock_fh(i) LeaveCriticalSection(&_pioinfo(i)->lock)
#if RUBY_MSVCRT_VERSION >= 80
static size_t pioinfo_extra = 0; /* workaround for VC++8 SP1 */
/* License: Ruby's */
static void
set_pioinfo_extra(void)
{
#if RUBY_MSVCRT_VERSION >= 140
# define FUNCTION_RET 0xc3 /* ret */
# ifdef _DEBUG
# define UCRTBASE "ucrtbased.dll"
# else
# define UCRTBASE "ucrtbase.dll"
# endif
/* get __pioinfo addr with _isatty */
/*
* Why Ruby depends to _pioinfo is
* * to associate socket and fd: CRuby creates fd with dummy file handle
* and set socket to emulate Unix-like behavior. Without __pioinfo
* we need something which manages the fd number allocation
* * to implement overlapped I/O for Windows 2000/XP
* * to emulate fcntl(2)
*
* see also
* * https://bugs.ruby-lang.org/issues/11118
* * https://bugs.ruby-lang.org/issues/18605
*/
char *p = (char*)get_proc_address(UCRTBASE, "_isatty", NULL);
char *pend = p;
/* _osfile(fh) & FDEV */
# ifdef _WIN64
int32_t rel;
char *rip;
/* add rsp, _ */
# define FUNCTION_BEFORE_RET_MARK "\x48\x83\xc4"
# define FUNCTION_SKIP_BYTES 1
# ifdef _DEBUG
/* lea rcx,[__pioinfo's addr in RIP-relative 32bit addr] */
# define PIOINFO_MARK "\x48\x8d\x0d"
# else
/* lea rdx,[__pioinfo's addr in RIP-relative 32bit addr] */
# define PIOINFO_MARK "\x48\x8d\x15"
# endif
# else /* x86 */
/* pop ebp */
# define FUNCTION_BEFORE_RET_MARK "\x5d"
# define FUNCTION_SKIP_BYTES 0
/* mov eax,dword ptr [eax*4+100EB430h] */
# define PIOINFO_MARK "\x8B\x04\x85"
# endif
if (p) {
for (pend += 10; pend < p + 300; pend++) {
// find end of function
if (memcmp(pend, FUNCTION_BEFORE_RET_MARK, sizeof(FUNCTION_BEFORE_RET_MARK) - 1) == 0 &&
(*(pend + (sizeof(FUNCTION_BEFORE_RET_MARK) - 1) + FUNCTION_SKIP_BYTES) & FUNCTION_RET) == FUNCTION_RET) {
// search backwards from end of function
for (pend -= (sizeof(PIOINFO_MARK) - 1); pend > p; pend--) {
if (memcmp(pend, PIOINFO_MARK, sizeof(PIOINFO_MARK) - 1) == 0) {
p = pend;
goto found;
}
}
break;
}
}
}
fprintf(stderr, "unexpected " UCRTBASE "\n");
_exit(1);
found:
p += sizeof(PIOINFO_MARK) - 1;
#ifdef _WIN64
rel = *(int32_t*)(p);
rip = p + sizeof(int32_t);
__pioinfo = (ioinfo**)(rip + rel);
#else
__pioinfo = *(ioinfo***)(p);
#endif
#endif
int fd;
fd = _open("NUL", O_RDONLY);
for (pioinfo_extra = 0; pioinfo_extra <= 64; pioinfo_extra += sizeof(void *)) {
if (_osfhnd(fd) == _get_osfhandle(fd)) {
break;
}
}
_close(fd);
if (pioinfo_extra > 64) {
/* not found, maybe something wrong... */
pioinfo_extra = 0;
}
}
#else
#define pioinfo_extra 0
#endif
static inline ioinfo*
_pioinfo(int fd)
{
const size_t sizeof_ioinfo = sizeof(ioinfo) + pioinfo_extra;
return (ioinfo*)((char*)__pioinfo[fd >> IOINFO_L2E] +
(fd & (IOINFO_ARRAY_ELTS - 1)) * sizeof_ioinfo);
}
#define _set_osfhnd(fh, osfh) (void)(_osfhnd(fh) = osfh)
#define _set_osflags(fh, flags) (_osfile(fh) = (flags))
#define FOPEN 0x01 /* file handle open */
#define FEOFLAG 0x02 /* end of file has been encountered */
#define FPIPE 0x08 /* file handle refers to a pipe */
#define FNOINHERIT 0x10 /* file handle opened O_NOINHERIT */
#define FAPPEND 0x20 /* file handle opened O_APPEND */
#define FDEV 0x40 /* file handle refers to device */
#define FTEXT 0x80 /* file handle is in text mode */
static int is_socket(SOCKET);
static int is_console(SOCKET);
/* License: Ruby's */
int
rb_w32_io_cancelable_p(int fd)
{
return is_socket(TO_SOCKET(fd)) || !is_console(TO_SOCKET(fd));
}
/* License: Ruby's */
static int
rb_w32_open_osfhandle(intptr_t osfhandle, int flags)
{
int fh;
char fileflags; /* _osfile flags */
HANDLE hF;
/* copy relevant flags from second parameter */
fileflags = FDEV;
if (flags & O_APPEND)
fileflags |= FAPPEND;
if (flags & O_TEXT)
fileflags |= FTEXT;
if (flags & O_NOINHERIT)
fileflags |= FNOINHERIT;
/* attempt to allocate a C Runtime file handle */
hF = CreateFile("NUL", 0, 0, NULL, OPEN_ALWAYS, 0, NULL);
fh = _open_osfhandle((intptr_t)hF, 0);
CloseHandle(hF);
if (fh == -1) {
errno = EMFILE; /* too many open files */
_doserrno = 0L; /* not an OS error */
}
else {
rb_acrt_lowio_lock_fh(fh);
/* the file is open. now, set the info in _osfhnd array */
_set_osfhnd(fh, osfhandle);
fileflags |= FOPEN; /* mark as open */
_set_osflags(fh, fileflags); /* set osfile entry */
rb_acrt_lowio_unlock_fh(fh);
}
return fh; /* return handle */
}
/* License: Ruby's */
static void
init_stdhandle(void)
{
int nullfd = -1;
int keep = 0;
#define open_null(fd) \
(((nullfd < 0) ? \
(nullfd = open("NUL", O_RDWR)) : 0), \
((nullfd == (fd)) ? (keep = 1) : dup2(nullfd, fd)), \
(fd))
if (fileno(stdin) < 0) {
FILE_FILENO(stdin) = open_null(0);
}
else {
setmode(fileno(stdin), O_BINARY);
}
if (fileno(stdout) < 0) {
FILE_FILENO(stdout) = open_null(1);
}
if (fileno(stderr) < 0) {
FILE_FILENO(stderr) = open_null(2);
}
if (nullfd >= 0 && !keep) close(nullfd);
setvbuf(stderr, NULL, _IONBF, 0);
{
HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE);
DWORD m;
if (GetConsoleMode(h, &m)) {
#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
#define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x4
#endif
SetConsoleMode(h, m | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
}
}
}
#undef getsockopt
/* License: Ruby's */
static int
is_socket(SOCKET sock)
{
if (socklist_lookup(sock, NULL))
return TRUE;
else
return FALSE;
}
/* License: Ruby's */
int
rb_w32_is_socket(int fd)
{
return is_socket(TO_SOCKET(fd));
}
//
// Since the errors returned by the socket error function
// WSAGetLastError() are not known by the library routine strerror
// we have to roll our own.
//
#undef strerror
/* License: Artistic or GPL */
char *
rb_w32_strerror(int e)
{
static char buffer[512];
DWORD source = 0;
char *p;
if (e < 0 || e > sys_nerr) {
if (e < 0)
e = GetLastError();
#if WSAEWOULDBLOCK != EWOULDBLOCK
else if (e >= EADDRINUSE && e <= EWOULDBLOCK) {
static int s = -1;
int i;
if (s < 0)
for (s = 0; s < (int)(sizeof(errmap)/sizeof(*errmap)); s++)
if (errmap[s].winerr == WSAEWOULDBLOCK)
break;
for (i = s; i < (int)(sizeof(errmap)/sizeof(*errmap)); i++)
if (errmap[i].err == e) {
e = errmap[i].winerr;
break;
}
}
#endif
if (FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS, &source, e,
MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
buffer, sizeof(buffer), NULL) == 0 &&
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS, &source, e, 0,
buffer, sizeof(buffer), NULL) == 0)
strlcpy(buffer, "Unknown Error", sizeof(buffer));
}
else
strlcpy(buffer, strerror(e), sizeof(buffer));
p = buffer;
while ((p = strpbrk(p, "\r\n")) != NULL) {
memmove(p, p + 1, strlen(p));
}
return buffer;
}
//
// various stubs
//
// Ownership
//
// Just pretend that everyone is a superuser. NT will let us know if
// we don't really have permission to do something.
//
#define ROOT_UID 0
#define ROOT_GID 0
/* License: Artistic or GPL */
rb_uid_t
getuid(void)
{
return ROOT_UID;
}
/* License: Artistic or GPL */
rb_uid_t
geteuid(void)
{
return ROOT_UID;
}
/* License: Artistic or GPL */
rb_gid_t
getgid(void)
{
return ROOT_GID;
}
/* License: Artistic or GPL */
rb_gid_t
getegid(void)
{
return ROOT_GID;
}
/* License: Artistic or GPL */
int
setuid(rb_uid_t uid)
{
return (uid == ROOT_UID ? 0 : -1);
}
/* License: Artistic or GPL */
int
setgid(rb_gid_t gid)
{
return (gid == ROOT_GID ? 0 : -1);
}
//
// File system stuff
//
/* License: Artistic or GPL */
int
ioctl(int i, int u, ...)
{
errno = EINVAL;
return -1;
}
void
rb_w32_fdset(int fd, fd_set *set)
{
FD_SET(fd, set);
}
#undef FD_CLR
/* License: Ruby's */
void
rb_w32_fdclr(int fd, fd_set *set)
{
unsigned int i;
SOCKET s = TO_SOCKET(fd);
for (i = 0; i < set->fd_count; i++) {
if (set->fd_array[i] == s) {
memmove(&set->fd_array[i], &set->fd_array[i+1],
sizeof(set->fd_array[0]) * (--set->fd_count - i));
break;
}
}
}
#undef FD_ISSET
/* License: Ruby's */
int
rb_w32_fdisset(int fd, fd_set *set)
{
int ret;
SOCKET s = TO_SOCKET(fd);
if (s == (SOCKET)INVALID_HANDLE_VALUE)
return 0;
RUBY_CRITICAL {ret = __WSAFDIsSet(s, set);}
return ret;
}
/* License: Ruby's */
void
rb_w32_fd_copy(rb_fdset_t *dst, const fd_set *src, int max)
{
max = min(src->fd_count, (UINT)max);
if ((UINT)dst->capa < (UINT)max) {
dst->capa = (src->fd_count / FD_SETSIZE + 1) * FD_SETSIZE;
dst->fdset = xrealloc(dst->fdset, sizeof(unsigned int) + sizeof(SOCKET) * dst->capa);
}
memcpy(dst->fdset->fd_array, src->fd_array,
max * sizeof(src->fd_array[0]));
dst->fdset->fd_count = src->fd_count;
}
/* License: Ruby's */
void
rb_w32_fd_dup(rb_fdset_t *dst, const rb_fdset_t *src)
{
if ((UINT)dst->capa < src->fdset->fd_count) {
dst->capa = (src->fdset->fd_count / FD_SETSIZE + 1) * FD_SETSIZE;
dst->fdset = xrealloc(dst->fdset, sizeof(unsigned int) + sizeof(SOCKET) * dst->capa);
}
memcpy(dst->fdset->fd_array, src->fdset->fd_array,
src->fdset->fd_count * sizeof(src->fdset->fd_array[0]));
dst->fdset->fd_count = src->fdset->fd_count;
}
//
// Networking trampolines
// These are used to avoid socket startup/shutdown overhead in case
// the socket routines aren't used.
//
#undef select
/* License: Ruby's */
static int
extract_fd(rb_fdset_t *dst, fd_set *src, int (*func)(SOCKET))
{
unsigned int s = 0;
unsigned int m = 0;
if (!src) return 0;
while (s < src->fd_count) {
SOCKET fd = src->fd_array[s];
if (!func || (*func)(fd)) {
if (dst) { /* move it to dst */
unsigned int d;
for (d = 0; d < dst->fdset->fd_count; d++) {
if (dst->fdset->fd_array[d] == fd)
break;
}
if (d == dst->fdset->fd_count) {
if ((int)dst->fdset->fd_count >= dst->capa) {
dst->capa = (dst->fdset->fd_count / FD_SETSIZE + 1) * FD_SETSIZE;
dst->fdset = xrealloc(dst->fdset, sizeof(unsigned int) + sizeof(SOCKET) * dst->capa);
}
dst->fdset->fd_array[dst->fdset->fd_count++] = fd;
}
memmove(
&src->fd_array[s],
&src->fd_array[s+1],
sizeof(src->fd_array[0]) * (--src->fd_count - s));
}
else {
m++;
s++;
}
}
else s++;
}
return dst ? dst->fdset->fd_count : m;
}
/* License: Ruby's */
static int
copy_fd(fd_set *dst, fd_set *src)
{
unsigned int s;
if (!src || !dst) return 0;
for (s = 0; s < src->fd_count; ++s) {
SOCKET fd = src->fd_array[s];
unsigned int d;
for (d = 0; d < dst->fd_count; ++d) {
if (dst->fd_array[d] == fd)
break;
}
if (d == dst->fd_count && d < FD_SETSIZE) {
dst->fd_array[dst->fd_count++] = fd;
}
}
return dst->fd_count;
}
/* License: Ruby's */
static int
is_not_socket(SOCKET sock)
{
return !is_socket(sock);
}
/* License: Ruby's */
static int
is_pipe(SOCKET sock) /* DONT call this for SOCKET! it claims it is PIPE. */
{
int ret;
RUBY_CRITICAL {
ret = (GetFileType((HANDLE)sock) == FILE_TYPE_PIPE);
}
return ret;
}
/* License: Ruby's */
static int
is_readable_pipe(SOCKET sock) /* call this for pipe only */
{
int ret;
DWORD n = 0;
RUBY_CRITICAL {
if (PeekNamedPipe((HANDLE)sock, NULL, 0, NULL, &n, NULL)) {
ret = (n > 0);
}
else {
ret = (GetLastError() == ERROR_BROKEN_PIPE); /* pipe was closed */
}
}
return ret;
}
/* License: Ruby's */
static int
is_console(SOCKET sock) /* DONT call this for SOCKET! */
{
int ret;
DWORD n = 0;
INPUT_RECORD ir;
RUBY_CRITICAL {
ret = (PeekConsoleInputW((HANDLE)sock, &ir, 1, &n));
}
return ret;
}
/* License: Ruby's */
static int
is_readable_console(SOCKET sock) /* call this for console only */
{
int ret = 0;
DWORD n = 0;
INPUT_RECORD ir;
RUBY_CRITICAL {
if (PeekConsoleInputW((HANDLE)sock, &ir, 1, &n) && n > 0) {
if (ir.EventType == KEY_EVENT && ir.Event.KeyEvent.bKeyDown &&
ir.Event.KeyEvent.uChar.UnicodeChar) {
ret = 1;
}
else if (ir.EventType == KEY_EVENT && !ir.Event.KeyEvent.bKeyDown &&
ir.Event.KeyEvent.wVirtualKeyCode == VK_MENU /* ALT key */ &&
ir.Event.KeyEvent.uChar.UnicodeChar) {
ret = 1;
}
else {
ReadConsoleInputW((HANDLE)sock, &ir, 1, &n);
}
}
}
return ret;
}
/* License: Ruby's */
static int
is_invalid_handle(SOCKET sock)
{
return (HANDLE)sock == INVALID_HANDLE_VALUE;
}
/* License: Artistic or GPL */
static int
do_select(int nfds, fd_set *rd, fd_set *wr, fd_set *ex,
struct timeval *timeout)
{
int r = 0;
if (nfds == 0) {
if (timeout)
rb_w32_sleep(timeout->tv_sec * 1000 + timeout->tv_usec / 1000);
else
rb_w32_sleep(INFINITE);
}
else {
RUBY_CRITICAL {
thread_exclusive(select) {
r = select(nfds, rd, wr, ex, timeout);
}
if (r == SOCKET_ERROR) {
errno = map_errno(WSAGetLastError());
r = -1;
}
}
}
return r;
}
/*
* rest -= wait
* return 0 if rest is smaller than wait.
*/
/* License: Ruby's */
int
rb_w32_time_subtract(struct timeval *rest, const struct timeval *wait)
{
if (rest->tv_sec < wait->tv_sec) {
return 0;
}
while (rest->tv_usec < wait->tv_usec) {
if (rest->tv_sec <= wait->tv_sec) {
return 0;
}
rest->tv_sec -= 1;
rest->tv_usec += 1000 * 1000;
}
rest->tv_sec -= wait->tv_sec;
rest->tv_usec -= wait->tv_usec;
return rest->tv_sec != 0 || rest->tv_usec != 0;
}
/* License: Ruby's */
static inline int
compare(const struct timeval *t1, const struct timeval *t2)
{
if (t1->tv_sec < t2->tv_sec)
return -1;
if (t1->tv_sec > t2->tv_sec)
return 1;
if (t1->tv_usec < t2->tv_usec)
return -1;
if (t1->tv_usec > t2->tv_usec)
return 1;
return 0;
}
#undef Sleep
int rb_w32_check_interrupt(void *); /* @internal */
/* @internal */
/* License: Ruby's */
int
rb_w32_select_with_thread(int nfds, fd_set *rd, fd_set *wr, fd_set *ex,
struct timeval *timeout, void *th)
{
int r;
rb_fdset_t pipe_rd;
rb_fdset_t cons_rd;
rb_fdset_t else_rd;
rb_fdset_t else_wr;
rb_fdset_t except;
int nonsock = 0;
struct timeval limit = {0, 0};
if (nfds < 0 || (timeout && (timeout->tv_sec < 0 || timeout->tv_usec < 0))) {
errno = EINVAL;
return -1;
}
if (timeout) {
if (timeout->tv_sec < 0 ||
timeout->tv_usec < 0 ||
timeout->tv_usec >= 1000000) {
errno = EINVAL;
return -1;
}
gettimeofday(&limit, NULL);
limit.tv_sec += timeout->tv_sec;
limit.tv_usec += timeout->tv_usec;
if (limit.tv_usec >= 1000000) {
limit.tv_usec -= 1000000;
limit.tv_sec++;
}
}
// assume else_{rd,wr} (other than socket, pipe reader, console reader)
// are always readable/writable. but this implementation still has
// problem. if pipe's buffer is full, writing to pipe will block
// until some data is read from pipe. but ruby is single threaded system,
// so whole system will be blocked forever.
rb_fd_init(&else_rd);
nonsock += extract_fd(&else_rd, rd, is_not_socket);
rb_fd_init(&else_wr);
nonsock += extract_fd(&else_wr, wr, is_not_socket);
// check invalid handles
if (extract_fd(NULL, else_rd.fdset, is_invalid_handle) > 0 ||
extract_fd(NULL, else_wr.fdset, is_invalid_handle) > 0) {
rb_fd_term(&else_wr);
rb_fd_term(&else_rd);
errno = EBADF;
return -1;
}
rb_fd_init(&pipe_rd);
extract_fd(&pipe_rd, else_rd.fdset, is_pipe); // should not call is_pipe for socket
rb_fd_init(&cons_rd);
extract_fd(&cons_rd, else_rd.fdset, is_console); // ditto
rb_fd_init(&except);
extract_fd(&except, ex, is_not_socket); // drop only
r = 0;
if (rd && (int)rd->fd_count > r) r = (int)rd->fd_count;
if (wr && (int)wr->fd_count > r) r = (int)wr->fd_count;
if (ex && (int)ex->fd_count > r) r = (int)ex->fd_count;
if (nfds > r) nfds = r;
{
struct timeval rest;
const struct timeval wait = {0, 10 * 1000}; // 10ms
struct timeval zero = {0, 0}; // 0ms
for (;;) {
if (th && rb_w32_check_interrupt(th) != WAIT_TIMEOUT) {
r = -1;
break;
}
if (nonsock) {
// modifying {else,pipe,cons}_rd is safe because
// if they are modified, function returns immediately.
extract_fd(&else_rd, pipe_rd.fdset, is_readable_pipe);
extract_fd(&else_rd, cons_rd.fdset, is_readable_console);
}
if (else_rd.fdset->fd_count || else_wr.fdset->fd_count) {
r = do_select(nfds, rd, wr, ex, &zero); // polling
if (r < 0) break; // XXX: should I ignore error and return signaled handles?
r += copy_fd(rd, else_rd.fdset);
r += copy_fd(wr, else_wr.fdset);
if (ex)
r += ex->fd_count;
break;
}
else {
const struct timeval *dowait = &wait;
fd_set orig_rd;
fd_set orig_wr;
fd_set orig_ex;
FD_ZERO(&orig_rd);
FD_ZERO(&orig_wr);
FD_ZERO(&orig_ex);
if (rd) copy_fd(&orig_rd, rd);
if (wr) copy_fd(&orig_wr, wr);
if (ex) copy_fd(&orig_ex, ex);
r = do_select(nfds, rd, wr, ex, &zero); // polling
if (r != 0) break; // signaled or error
if (rd) copy_fd(rd, &orig_rd);
if (wr) copy_fd(wr, &orig_wr);
if (ex) copy_fd(ex, &orig_ex);
if (timeout) {
struct timeval now;
gettimeofday(&now, NULL);
rest = limit;
if (!rb_w32_time_subtract(&rest, &now)) break;
if (compare(&rest, &wait) < 0) dowait = &rest;
}
Sleep(dowait->tv_sec * 1000 + (dowait->tv_usec + 999) / 1000);
}
}
}
rb_fd_term(&except);
rb_fd_term(&cons_rd);
rb_fd_term(&pipe_rd);
rb_fd_term(&else_wr);
rb_fd_term(&else_rd);
return r;
}
/* License: Ruby's */
int WSAAPI
rb_w32_select(int nfds, fd_set *rd, fd_set *wr, fd_set *ex,
struct timeval *timeout)
{
return rb_w32_select_with_thread(nfds, rd, wr, ex, timeout, 0);
}
/* License: Ruby's */
static FARPROC
get_wsa_extension_function(SOCKET s, GUID guid)
{
DWORD dmy;
FARPROC ptr = NULL;
WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER, &guid, sizeof(guid),
&ptr, sizeof(ptr), &dmy, NULL, NULL);
if (!ptr)
errno = ENOSYS;
return ptr;
}
#undef accept
/* License: Artistic or GPL */
int WSAAPI
rb_w32_accept(int s, struct sockaddr *addr, int *addrlen)
{
SOCKET r;
int fd;
RUBY_CRITICAL {
r = accept(TO_SOCKET(s), addr, addrlen);
if (r != INVALID_SOCKET) {
SetHandleInformation((HANDLE)r, HANDLE_FLAG_INHERIT, 0);
fd = rb_w32_open_osfhandle((intptr_t)r, O_RDWR|O_BINARY|O_NOINHERIT);
if (fd != -1)
socklist_insert(r, 0);
else
closesocket(r);
}
else {
errno = map_errno(WSAGetLastError());
fd = -1;
}
}
return fd;
}
#undef bind
/* License: Artistic or GPL */
int WSAAPI
rb_w32_bind(int s, const struct sockaddr *addr, int addrlen)
{
int r;
RUBY_CRITICAL {
r = bind(TO_SOCKET(s), addr, addrlen);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef connect
/* License: Artistic or GPL */
int WSAAPI
rb_w32_connect(int s, const struct sockaddr *addr, int addrlen)
{
int r;
RUBY_CRITICAL {
r = connect(TO_SOCKET(s), addr, addrlen);
if (r == SOCKET_ERROR) {
int err = WSAGetLastError();
if (err != WSAEWOULDBLOCK)
errno = map_errno(err);
else
errno = EINPROGRESS;
}
}
return r;
}
#undef getpeername
/* License: Artistic or GPL */
int WSAAPI
rb_w32_getpeername(int s, struct sockaddr *addr, int *addrlen)
{
int r;
RUBY_CRITICAL {
r = getpeername(TO_SOCKET(s), addr, addrlen);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef getsockname
/* License: Artistic or GPL */
int WSAAPI
rb_w32_getsockname(int fd, struct sockaddr *addr, int *addrlen)
{
int sock;
int r;
RUBY_CRITICAL {
sock = TO_SOCKET(fd);
r = getsockname(sock, addr, addrlen);
if (r == SOCKET_ERROR) {
DWORD wsaerror = WSAGetLastError();
if (wsaerror == WSAEINVAL) {
int flags;
if (socklist_lookup(sock, &flags)) {
int af = GET_FAMILY(flags);
if (af) {
memset(addr, 0, *addrlen);
addr->sa_family = af;
return 0;
}
}
}
errno = map_errno(wsaerror);
}
}
return r;
}
#undef getsockopt
/* License: Artistic or GPL */
int WSAAPI
rb_w32_getsockopt(int s, int level, int optname, char *optval, int *optlen)
{
int r;
RUBY_CRITICAL {
r = getsockopt(TO_SOCKET(s), level, optname, optval, optlen);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef ioctlsocket
/* License: Artistic or GPL */
int WSAAPI
rb_w32_ioctlsocket(int s, long cmd, u_long *argp)
{
int r;
RUBY_CRITICAL {
r = ioctlsocket(TO_SOCKET(s), cmd, argp);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef listen
/* License: Artistic or GPL */
int WSAAPI
rb_w32_listen(int s, int backlog)
{
int r;
RUBY_CRITICAL {
r = listen(TO_SOCKET(s), backlog);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef recv
#undef recvfrom
#undef send
#undef sendto
/* License: Ruby's */
static int
finish_overlapped_socket(BOOL input, SOCKET s, WSAOVERLAPPED *wol, int result, DWORD *len, DWORD size)
{
DWORD flg;
int err;
if (result != SOCKET_ERROR)
*len = size;
else if ((err = WSAGetLastError()) == WSA_IO_PENDING) {
switch (rb_w32_wait_events_blocking(&wol->hEvent, 1, INFINITE)) {
case WAIT_OBJECT_0:
RUBY_CRITICAL {
result = WSAGetOverlappedResult(s, wol, &size, TRUE, &flg);
}
if (result) {
result = 0;
*len = size;
break;
}
result = SOCKET_ERROR;
/* thru */
default:
if ((err = WSAGetLastError()) == WSAECONNABORTED && !input)
errno = EPIPE;
else if (err == WSAEMSGSIZE && input) {
result = 0;
*len = size;
break;
}
else
errno = map_errno(err);
/* thru */
case WAIT_OBJECT_0 + 1:
/* interrupted */
*len = -1;
CancelIo((HANDLE)s);
break;
}
}
else {
if (err == WSAECONNABORTED && !input)
errno = EPIPE;
else
errno = map_errno(err);
*len = -1;
}
CloseHandle(wol->hEvent);
return result;
}
/* License: Artistic or GPL */
static int
overlapped_socket_io(BOOL input, int fd, char *buf, int len, int flags,
struct sockaddr *addr, int *addrlen)
{
int r;
int ret;
int mode = 0;
DWORD flg;
WSAOVERLAPPED wol;
WSABUF wbuf;
SOCKET s;
s = TO_SOCKET(fd);
socklist_lookup(s, &mode);
if (GET_FLAGS(mode) & O_NONBLOCK) {
RUBY_CRITICAL {
if (input) {
if (addr && addrlen)
r = recvfrom(s, buf, len, flags, addr, addrlen);
else
r = recv(s, buf, len, flags);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
else {
if (addr && addrlen)
r = sendto(s, buf, len, flags, addr, *addrlen);
else
r = send(s, buf, len, flags);
if (r == SOCKET_ERROR) {
DWORD err = WSAGetLastError();
if (err == WSAECONNABORTED)
errno = EPIPE;
else
errno = map_errno(err);
}
}
}
}
else {
DWORD size;
DWORD rlen;
wbuf.len = len;
wbuf.buf = buf;
memset(&wol, 0, sizeof(wol));
RUBY_CRITICAL {
wol.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (input) {
flg = flags;
if (addr && addrlen)
ret = WSARecvFrom(s, &wbuf, 1, &size, &flg, addr, addrlen,
&wol, NULL);
else
ret = WSARecv(s, &wbuf, 1, &size, &flg, &wol, NULL);
}
else {
if (addr && addrlen)
ret = WSASendTo(s, &wbuf, 1, &size, flags, addr, *addrlen,
&wol, NULL);
else
ret = WSASend(s, &wbuf, 1, &size, flags, &wol, NULL);
}
}
finish_overlapped_socket(input, s, &wol, ret, &rlen, size);
r = (int)rlen;
}
return r;
}
/* License: Ruby's */
int WSAAPI
rb_w32_recv(int fd, char *buf, int len, int flags)
{
return overlapped_socket_io(TRUE, fd, buf, len, flags, NULL, NULL);
}
/* License: Ruby's */
int WSAAPI
rb_w32_recvfrom(int fd, char *buf, int len, int flags,
struct sockaddr *from, int *fromlen)
{
return overlapped_socket_io(TRUE, fd, buf, len, flags, from, fromlen);
}
/* License: Ruby's */
int WSAAPI
rb_w32_send(int fd, const char *buf, int len, int flags)
{
return overlapped_socket_io(FALSE, fd, (char *)buf, len, flags, NULL, NULL);
}
/* License: Ruby's */
int WSAAPI
rb_w32_sendto(int fd, const char *buf, int len, int flags,
const struct sockaddr *to, int tolen)
{
return overlapped_socket_io(FALSE, fd, (char *)buf, len, flags,
(struct sockaddr *)to, &tolen);
}
#if !defined(MSG_TRUNC) && !defined(__MINGW32__)
/* License: Ruby's */
typedef struct {
SOCKADDR *name;
int namelen;
WSABUF *lpBuffers;
DWORD dwBufferCount;
WSABUF Control;
DWORD dwFlags;
} WSAMSG;
#endif
#ifndef WSAID_WSARECVMSG
#define WSAID_WSARECVMSG {0xf689d7c8,0x6f1f,0x436b,{0x8a,0x53,0xe5,0x4f,0xe3,0x51,0xc3,0x22}}
#endif
#ifndef WSAID_WSASENDMSG
#define WSAID_WSASENDMSG {0xa441e712,0x754f,0x43ca,{0x84,0xa7,0x0d,0xee,0x44,0xcf,0x60,0x6d}}
#endif
/* License: Ruby's */
#define msghdr_to_wsamsg(msg, wsamsg) \
do { \
int i; \
(wsamsg)->name = (msg)->msg_name; \
(wsamsg)->namelen = (msg)->msg_namelen; \
(wsamsg)->lpBuffers = ALLOCA_N(WSABUF, (msg)->msg_iovlen); \
(wsamsg)->dwBufferCount = (msg)->msg_iovlen; \
for (i = 0; i < (msg)->msg_iovlen; ++i) { \
(wsamsg)->lpBuffers[i].buf = (msg)->msg_iov[i].iov_base; \
(wsamsg)->lpBuffers[i].len = (msg)->msg_iov[i].iov_len; \
} \
(wsamsg)->Control.buf = (msg)->msg_control; \
(wsamsg)->Control.len = (msg)->msg_controllen; \
(wsamsg)->dwFlags = (msg)->msg_flags; \
} while (0)
/* License: Ruby's */
int
recvmsg(int fd, struct msghdr *msg, int flags)
{
typedef int (WSAAPI *WSARecvMsg_t)(SOCKET, WSAMSG *, DWORD *, WSAOVERLAPPED *, LPWSAOVERLAPPED_COMPLETION_ROUTINE);
static WSARecvMsg_t pWSARecvMsg = NULL;
WSAMSG wsamsg;
SOCKET s;
int mode = 0;
DWORD len;
int ret;
s = TO_SOCKET(fd);
if (!pWSARecvMsg) {
static const GUID guid = WSAID_WSARECVMSG;
pWSARecvMsg = (WSARecvMsg_t)get_wsa_extension_function(s, guid);
if (!pWSARecvMsg)
return -1;
}
msghdr_to_wsamsg(msg, &wsamsg);
wsamsg.dwFlags |= flags;
socklist_lookup(s, &mode);
if (GET_FLAGS(mode) & O_NONBLOCK) {
RUBY_CRITICAL {
if ((ret = pWSARecvMsg(s, &wsamsg, &len, NULL, NULL)) == SOCKET_ERROR) {
errno = map_errno(WSAGetLastError());
len = -1;
}
}
}
else {
DWORD size;
WSAOVERLAPPED wol;
memset(&wol, 0, sizeof(wol));
RUBY_CRITICAL {
wol.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
ret = pWSARecvMsg(s, &wsamsg, &size, &wol, NULL);
}
ret = finish_overlapped_socket(TRUE, s, &wol, ret, &len, size);
}
if (ret == SOCKET_ERROR)
return -1;
/* WSAMSG to msghdr */
msg->msg_name = wsamsg.name;
msg->msg_namelen = wsamsg.namelen;
msg->msg_flags = wsamsg.dwFlags;
return len;
}
/* License: Ruby's */
int
sendmsg(int fd, const struct msghdr *msg, int flags)
{
typedef int (WSAAPI *WSASendMsg_t)(SOCKET, const WSAMSG *, DWORD, DWORD *, WSAOVERLAPPED *, LPWSAOVERLAPPED_COMPLETION_ROUTINE);
static WSASendMsg_t pWSASendMsg = NULL;
WSAMSG wsamsg;
SOCKET s;
int mode = 0;
DWORD len;
int ret;
s = TO_SOCKET(fd);
if (!pWSASendMsg) {
static const GUID guid = WSAID_WSASENDMSG;
pWSASendMsg = (WSASendMsg_t)get_wsa_extension_function(s, guid);
if (!pWSASendMsg)
return -1;
}
msghdr_to_wsamsg(msg, &wsamsg);
socklist_lookup(s, &mode);
if (GET_FLAGS(mode) & O_NONBLOCK) {
RUBY_CRITICAL {
if ((ret = pWSASendMsg(s, &wsamsg, flags, &len, NULL, NULL)) == SOCKET_ERROR) {
errno = map_errno(WSAGetLastError());
len = -1;
}
}
}
else {
DWORD size;
WSAOVERLAPPED wol;
memset(&wol, 0, sizeof(wol));
RUBY_CRITICAL {
wol.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
ret = pWSASendMsg(s, &wsamsg, flags, &size, &wol, NULL);
}
finish_overlapped_socket(FALSE, s, &wol, ret, &len, size);
}
return len;
}
#undef setsockopt
/* License: Artistic or GPL */
int WSAAPI
rb_w32_setsockopt(int s, int level, int optname, const char *optval, int optlen)
{
int r;
RUBY_CRITICAL {
r = setsockopt(TO_SOCKET(s), level, optname, optval, optlen);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef shutdown
/* License: Artistic or GPL */
int WSAAPI
rb_w32_shutdown(int s, int how)
{
int r;
RUBY_CRITICAL {
r = shutdown(TO_SOCKET(s), how);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
/* License: Ruby's */
static SOCKET
open_ifs_socket(int af, int type, int protocol)
{
unsigned long proto_buffers_len = 0;
int error_code;
SOCKET out = INVALID_SOCKET;
if (WSAEnumProtocols(NULL, NULL, &proto_buffers_len) == SOCKET_ERROR) {
error_code = WSAGetLastError();
if (error_code == WSAENOBUFS) {
WSAPROTOCOL_INFO *proto_buffers;
int protocols_available = 0;
proto_buffers = (WSAPROTOCOL_INFO *)malloc(proto_buffers_len);
if (!proto_buffers) {
WSASetLastError(WSA_NOT_ENOUGH_MEMORY);
return INVALID_SOCKET;
}
protocols_available =
WSAEnumProtocols(NULL, proto_buffers, &proto_buffers_len);
if (protocols_available != SOCKET_ERROR) {
int i;
for (i = 0; i < protocols_available; i++) {
if ((af != AF_UNSPEC && af != proto_buffers[i].iAddressFamily) ||
(type != proto_buffers[i].iSocketType) ||
(protocol != 0 && protocol != proto_buffers[i].iProtocol))
continue;
if ((proto_buffers[i].dwServiceFlags1 & XP1_IFS_HANDLES) == 0)
continue;
out = WSASocket(af, type, protocol, &(proto_buffers[i]), 0,
WSA_FLAG_OVERLAPPED);
break;
}
if (out == INVALID_SOCKET)
out = WSASocket(af, type, protocol, NULL, 0, 0);
if (out != INVALID_SOCKET)
SetHandleInformation((HANDLE)out, HANDLE_FLAG_INHERIT, 0);
}
free(proto_buffers);
}
}
return out;
}
#undef socket
/* License: Artistic or GPL */
int WSAAPI
rb_w32_socket(int af, int type, int protocol)
{
SOCKET s;
int fd;
RUBY_CRITICAL {
s = open_ifs_socket(af, type, protocol);
if (s == INVALID_SOCKET) {
errno = map_errno(WSAGetLastError());
fd = -1;
}
else {
fd = rb_w32_open_osfhandle(s, O_RDWR|O_BINARY|O_NOINHERIT);
if (fd != -1)
socklist_insert(s, MAKE_SOCKDATA(af, 0));
else
closesocket(s);
}
}
return fd;
}
#undef gethostbyaddr
/* License: Artistic or GPL */
struct hostent * WSAAPI
rb_w32_gethostbyaddr(const char *addr, int len, int type)
{
struct hostent *r;
RUBY_CRITICAL {
r = gethostbyaddr(addr, len, type);
if (r == NULL)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef gethostbyname
/* License: Artistic or GPL */
struct hostent * WSAAPI
rb_w32_gethostbyname(const char *name)
{
struct hostent *r;
RUBY_CRITICAL {
r = gethostbyname(name);
if (r == NULL)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef gethostname
/* License: Artistic or GPL */
int WSAAPI
rb_w32_gethostname(char *name, int len)
{
int r;
RUBY_CRITICAL {
r = gethostname(name, len);
if (r == SOCKET_ERROR)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef getprotobyname
/* License: Artistic or GPL */
struct protoent * WSAAPI
rb_w32_getprotobyname(const char *name)
{
struct protoent *r;
RUBY_CRITICAL {
r = getprotobyname(name);
if (r == NULL)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef getprotobynumber
/* License: Artistic or GPL */
struct protoent * WSAAPI
rb_w32_getprotobynumber(int num)
{
struct protoent *r;
RUBY_CRITICAL {
r = getprotobynumber(num);
if (r == NULL)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef getservbyname
/* License: Artistic or GPL */
struct servent * WSAAPI
rb_w32_getservbyname(const char *name, const char *proto)
{
struct servent *r;
RUBY_CRITICAL {
r = getservbyname(name, proto);
if (r == NULL)
errno = map_errno(WSAGetLastError());
}
return r;
}
#undef getservbyport
/* License: Artistic or GPL */
struct servent * WSAAPI
rb_w32_getservbyport(int port, const char *proto)
{
struct servent *r;
RUBY_CRITICAL {
r = getservbyport(port, proto);
if (r == NULL)
errno = map_errno(WSAGetLastError());
}
return r;
}
#ifdef HAVE_AFUNIX_H
/* License: Ruby's */
static size_t
socketpair_unix_path(struct sockaddr_un *sock_un)
{
SOCKET listener;
WCHAR wpath[sizeof(sock_un->sun_path)/sizeof(*sock_un->sun_path)] = L"";
/* AF_UNIX/SOCK_STREAM became available in Windows 10
* See https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows
*/
listener = socket(AF_UNIX, SOCK_STREAM, 0);
if (listener == INVALID_SOCKET)
return 0;
memset(sock_un, 0, sizeof(*sock_un));
sock_un->sun_family = AF_UNIX;
/* Abstract sockets (filesystem-independent) don't work, contrary to
* the claims of the aforementioned blog post:
* https://github.com/microsoft/WSL/issues/4240#issuecomment-549663217
*
* So we must use a named path, and that comes with all the attendant
* problems of permissions and collisions. Trying various temporary
* directories and putting high-res time and PID in the filename.
*/
for (int try = 0; ; try++) {
LARGE_INTEGER ticks;
size_t path_len = 0;
const size_t maxpath = sizeof(sock_un->sun_path)/sizeof(*sock_un->sun_path);
switch (try) {
case 0:
/* user temp dir from TMP or TEMP env var, it ends with a backslash */
path_len = GetTempPathW(maxpath, wpath);
break;
case 1:
wcsncpy(wpath, L"C:/Temp/", maxpath);
path_len = lstrlenW(wpath);
break;
case 2:
/* Current directory */
path_len = 0;
break;
case 3:
closesocket(listener);
return 0;
}
/* Windows UNIXSocket implementation expects UTF-8 instead of UTF16 */
path_len = WideCharToMultiByte(CP_UTF8, 0, wpath, path_len, sock_un->sun_path, maxpath, NULL, NULL);
QueryPerformanceCounter(&ticks);
path_len += snprintf(sock_un->sun_path + path_len,
maxpath - path_len,
"%lld-%ld.($)",
ticks.QuadPart,
GetCurrentProcessId());
/* Convert to UTF16 for DeleteFileW */
MultiByteToWideChar(CP_UTF8, 0, sock_un->sun_path, -1, wpath, sizeof(wpath)/sizeof(*wpath));
if (bind(listener, (struct sockaddr *)sock_un, sizeof(*sock_un)) != SOCKET_ERROR)
break;
}
closesocket(listener);
DeleteFileW(wpath);
return sizeof(*sock_un);
}
#endif
/* License: Ruby's */
static int
socketpair_internal(int af, int type, int protocol, SOCKET *sv)
{
SOCKET svr = INVALID_SOCKET, r = INVALID_SOCKET, w = INVALID_SOCKET;
struct sockaddr_in sock_in4;
#ifdef INET6
struct sockaddr_in6 sock_in6;
#endif
#ifdef HAVE_AFUNIX_H
struct sockaddr_un sock_un = {0, {0}};
WCHAR wpath[sizeof(sock_un.sun_path)/sizeof(*sock_un.sun_path)] = L"";
#endif
struct sockaddr *addr;
int ret = -1;
int len;
switch (af) {
case AF_INET:
#if defined PF_INET && PF_INET != AF_INET
case PF_INET:
#endif
sock_in4.sin_family = AF_INET;
sock_in4.sin_port = 0;
sock_in4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
addr = (struct sockaddr *)&sock_in4;
len = sizeof(sock_in4);
break;
#ifdef INET6
case AF_INET6:
memset(&sock_in6, 0, sizeof(sock_in6));
sock_in6.sin6_family = AF_INET6;
sock_in6.sin6_addr = IN6ADDR_LOOPBACK_INIT;
addr = (struct sockaddr *)&sock_in6;
len = sizeof(sock_in6);
break;
#endif
#ifdef HAVE_AFUNIX_H
case AF_UNIX:
addr = (struct sockaddr *)&sock_un;
len = socketpair_unix_path(&sock_un);
MultiByteToWideChar(CP_UTF8, 0, sock_un.sun_path, -1, wpath, sizeof(wpath)/sizeof(*wpath));
if (len)
break;
/* fall through */
#endif
default:
errno = EAFNOSUPPORT;
return -1;
}
if (type != SOCK_STREAM) {
errno = EPROTOTYPE;
return -1;
}
sv[0] = (SOCKET)INVALID_HANDLE_VALUE;
sv[1] = (SOCKET)INVALID_HANDLE_VALUE;
RUBY_CRITICAL {
do {
svr = open_ifs_socket(af, type, protocol);
if (svr == INVALID_SOCKET)
break;
if (bind(svr, addr, len) < 0)
break;
if (getsockname(svr, addr, &len) < 0)
break;
if (type == SOCK_STREAM)
listen(svr, 5);
w = open_ifs_socket(af, type, protocol);
if (w == INVALID_SOCKET)
break;
if (connect(w, addr, len) < 0)
break;
r = accept(svr, addr, &len);
if (r == INVALID_SOCKET)
break;
SetHandleInformation((HANDLE)r, HANDLE_FLAG_INHERIT, 0);
ret = 0;
} while (0);
if (ret < 0) {
errno = map_errno(WSAGetLastError());
if (r != INVALID_SOCKET)
closesocket(r);
if (w != INVALID_SOCKET)
closesocket(w);
}
else {
sv[0] = r;
sv[1] = w;
}
if (svr != INVALID_SOCKET)
closesocket(svr);
#ifdef HAVE_AFUNIX_H
if (sock_un.sun_family == AF_UNIX)
DeleteFileW(wpath);
#endif
}
return ret;
}
/* License: Ruby's */
int
socketpair(int af, int type, int protocol, int *sv)
{
SOCKET pair[2];
if (socketpair_internal(af, type, protocol, pair) < 0)
return -1;
sv[0] = rb_w32_open_osfhandle(pair[0], O_RDWR|O_BINARY|O_NOINHERIT);
if (sv[0] == -1) {
closesocket(pair[0]);
closesocket(pair[1]);
return -1;
}
sv[1] = rb_w32_open_osfhandle(pair[1], O_RDWR|O_BINARY|O_NOINHERIT);
if (sv[1] == -1) {
rb_w32_close(sv[0]);
closesocket(pair[1]);
return -1;
}
socklist_insert(pair[0], MAKE_SOCKDATA(af, 0));
socklist_insert(pair[1], MAKE_SOCKDATA(af, 0));
return 0;
}
#if !defined(_MSC_VER) || _MSC_VER >= 1400
/* License: Ruby's */
static void
str2guid(const char *str, GUID *guid)
{
#define hex2byte(str) \
((isdigit(*(str)) ? *(str) - '0' : toupper(*(str)) - 'A' + 10) << 4 | (isdigit(*((str) + 1)) ? *((str) + 1) - '0' : toupper(*((str) + 1)) - 'A' + 10))
char *end;
int i;
if (*str == '{') str++;
guid->Data1 = (long)strtoul(str, &end, 16);
str += 9;
guid->Data2 = (unsigned short)strtoul(str, &end, 16);
str += 5;
guid->Data3 = (unsigned short)strtoul(str, &end, 16);
str += 5;
guid->Data4[0] = hex2byte(str);
str += 2;
guid->Data4[1] = hex2byte(str);
str += 3;
for (i = 0; i < 6; i++) {
guid->Data4[i + 2] = hex2byte(str);
str += 2;
}
}
/* License: Ruby's */
#ifndef HAVE_TYPE_NET_LUID
typedef struct {
uint64_t Value;
struct {
uint64_t Reserved :24;
uint64_t NetLuidIndex :24;
uint64_t IfType :16;
} Info;
} NET_LUID;
#endif
typedef DWORD (WINAPI *cigl_t)(const GUID *, NET_LUID *);
typedef DWORD (WINAPI *cilnA_t)(const NET_LUID *, char *, size_t);
static cigl_t pConvertInterfaceGuidToLuid = (cigl_t)-1;
static cilnA_t pConvertInterfaceLuidToNameA = (cilnA_t)-1;
int
getifaddrs(struct ifaddrs **ifap)
{
ULONG size = 0;
ULONG ret;
IP_ADAPTER_ADDRESSES *root, *addr;
struct ifaddrs *prev;
ret = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, NULL, &size);
if (ret != ERROR_BUFFER_OVERFLOW) {
errno = map_errno(ret);
return -1;
}
root = ruby_xmalloc(size);
ret = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, root, &size);
if (ret != ERROR_SUCCESS) {
errno = map_errno(ret);
ruby_xfree(root);
return -1;
}
if (pConvertInterfaceGuidToLuid == (cigl_t)-1)
pConvertInterfaceGuidToLuid =
(cigl_t)get_proc_address("iphlpapi.dll",
"ConvertInterfaceGuidToLuid", NULL);
if (pConvertInterfaceLuidToNameA == (cilnA_t)-1)
pConvertInterfaceLuidToNameA =
(cilnA_t)get_proc_address("iphlpapi.dll",
"ConvertInterfaceLuidToNameA", NULL);
for (prev = NULL, addr = root; addr; addr = addr->Next) {
struct ifaddrs *ifa = ruby_xcalloc(1, sizeof(*ifa));
char name[IFNAMSIZ];
GUID guid;
NET_LUID luid;
if (prev)
prev->ifa_next = ifa;
else
*ifap = ifa;
str2guid(addr->AdapterName, &guid);
if (pConvertInterfaceGuidToLuid && pConvertInterfaceLuidToNameA &&
pConvertInterfaceGuidToLuid(&guid, &luid) == NO_ERROR &&
pConvertInterfaceLuidToNameA(&luid, name, sizeof(name)) == NO_ERROR) {
ifa->ifa_name = ruby_strdup(name);
}
else {
ifa->ifa_name = ruby_strdup(addr->AdapterName);
}
if (addr->IfType & IF_TYPE_SOFTWARE_LOOPBACK)
ifa->ifa_flags |= IFF_LOOPBACK;
if (addr->OperStatus == IfOperStatusUp) {
ifa->ifa_flags |= IFF_UP;
if (addr->FirstUnicastAddress) {
IP_ADAPTER_UNICAST_ADDRESS *cur;
int added = 0;
for (cur = addr->FirstUnicastAddress; cur; cur = cur->Next) {
if (cur->Flags & IP_ADAPTER_ADDRESS_TRANSIENT ||
cur->DadState == IpDadStateDeprecated) {
continue;
}
if (added) {
prev = ifa;
ifa = ruby_xcalloc(1, sizeof(*ifa));
prev->ifa_next = ifa;
ifa->ifa_name = ruby_strdup(prev->ifa_name);
ifa->ifa_flags = prev->ifa_flags;
}
ifa->ifa_addr = ruby_xmalloc(cur->Address.iSockaddrLength);
memcpy(ifa->ifa_addr, cur->Address.lpSockaddr,
cur->Address.iSockaddrLength);
added = 1;
}
}
}
prev = ifa;
}
ruby_xfree(root);
return 0;
}
/* License: Ruby's */
void
freeifaddrs(struct ifaddrs *ifp)
{
while (ifp) {
struct ifaddrs *next = ifp->ifa_next;
ruby_xfree(ifp->ifa_addr);
ruby_xfree(ifp->ifa_name);
ruby_xfree(ifp);
ifp = next;
}
}
#endif
#if 0 // Have never been used
//
// Networking stubs
//
void endhostent(void) {}
void endnetent(void) {}
void endprotoent(void) {}
void endservent(void) {}
struct netent *getnetent (void) {return (struct netent *) NULL;}
struct netent *getnetbyaddr(long net, int type) {return (struct netent *)NULL;}
struct netent *getnetbyname(const char *name) {return (struct netent *)NULL;}
struct protoent *getprotoent (void) {return (struct protoent *) NULL;}
struct servent *getservent (void) {return (struct servent *) NULL;}
void sethostent (int stayopen) {}
void setnetent (int stayopen) {}
void setprotoent (int stayopen) {}
void setservent (int stayopen) {}
#endif
int rb_w32_set_nonblock2(int fd, int nonblock);
/* License: Ruby's */
static int
setfl(SOCKET sock, int arg)
{
int ret;
int af = 0;
int flag = 0;
u_long ioctlArg;
socklist_lookup(sock, &flag);
af = GET_FAMILY(flag);
flag = GET_FLAGS(flag);
if (arg & O_NONBLOCK) {
flag |= O_NONBLOCK;
ioctlArg = 1;
}
else {
flag &= ~O_NONBLOCK;
ioctlArg = 0;
}
RUBY_CRITICAL {
ret = ioctlsocket(sock, FIONBIO, &ioctlArg);
if (ret == 0)
socklist_insert(sock, MAKE_SOCKDATA(af, flag));
else
errno = map_errno(WSAGetLastError());
}
return ret;
}
/* License: Ruby's */
static int
dupfd(HANDLE hDup, int flags, int minfd)
{
int save_errno;
int ret;
int fds[32];
int filled = 0;
do {
ret = _open_osfhandle((intptr_t)hDup, flags | FOPEN);
if (ret == -1) {
goto close_fds_and_return;
}
if (ret >= minfd) {
goto close_fds_and_return;
}
fds[filled++] = ret;
} while (filled < (int)numberof(fds));
ret = dupfd(hDup, flags, minfd);
close_fds_and_return:
save_errno = errno;
while (filled > 0) {
int fd = fds[--filled];
_set_osfhnd(fd, (intptr_t)INVALID_HANDLE_VALUE);
close(fd);
}
errno = save_errno;
return ret;
}
/* License: Ruby's */
int
fcntl(int fd, int cmd, ...)
{
va_list va;
int arg;
DWORD flag;
switch (cmd) {
case F_SETFL: {
va_start(va, cmd);
arg = va_arg(va, int);
va_end(va);
return rb_w32_set_nonblock2(fd, arg);
}
case F_DUPFD: case F_DUPFD_CLOEXEC: {
int ret;
HANDLE hDup;
flag = _osfile(fd);
if (!(DuplicateHandle(GetCurrentProcess(), (HANDLE)_get_osfhandle(fd),
GetCurrentProcess(), &hDup, 0L,
cmd == F_DUPFD && !(flag & FNOINHERIT),
DUPLICATE_SAME_ACCESS))) {
errno = map_errno(GetLastError());
return -1;
}
va_start(va, cmd);
arg = va_arg(va, int);
va_end(va);
if (cmd != F_DUPFD)
flag |= FNOINHERIT;
else
flag &= ~FNOINHERIT;
if ((ret = dupfd(hDup, flag, arg)) == -1)
CloseHandle(hDup);
return ret;
}
case F_GETFD: {
SIGNED_VALUE h = _get_osfhandle(fd);
if (h == -1) return -1;
if (!GetHandleInformation((HANDLE)h, &flag)) {
errno = map_errno(GetLastError());
return -1;
}
return (flag & HANDLE_FLAG_INHERIT) ? 0 : FD_CLOEXEC;
}
case F_SETFD: {
SIGNED_VALUE h = _get_osfhandle(fd);
if (h == -1) return -1;
va_start(va, cmd);
arg = va_arg(va, int);
va_end(va);
if (!SetHandleInformation((HANDLE)h, HANDLE_FLAG_INHERIT,
(arg & FD_CLOEXEC) ? 0 : HANDLE_FLAG_INHERIT)) {
errno = map_errno(GetLastError());
return -1;
}
if (arg & FD_CLOEXEC)
_osfile(fd) |= FNOINHERIT;
else
_osfile(fd) &= ~FNOINHERIT;
return 0;
}
default:
errno = EINVAL;
return -1;
}
}
/* License: Ruby's */
int
rb_w32_set_nonblock2(int fd, int nonblock)
{
SOCKET sock = TO_SOCKET(fd);
if (is_socket(sock)) {
return setfl(sock, nonblock ? O_NONBLOCK : 0);
}
else if (is_pipe(sock)) {
DWORD state;
if (!GetNamedPipeHandleState((HANDLE)sock, &state, NULL, NULL, NULL, NULL, 0)) {
errno = map_errno(GetLastError());
return -1;
}
if (nonblock) {
state |= PIPE_NOWAIT;
}
else {
state &= ~PIPE_NOWAIT;
}
if (!SetNamedPipeHandleState((HANDLE)sock, &state, NULL, NULL)) {
errno = map_errno(GetLastError());
return -1;
}
return 0;
}
else {
errno = EBADF;
return -1;
}
}
int
rb_w32_set_nonblock(int fd)
{
return rb_w32_set_nonblock2(fd, TRUE);
}
#ifndef WNOHANG
#define WNOHANG -1
#endif
/* License: Ruby's */
static rb_pid_t
poll_child_status(struct ChildRecord *child, int *stat_loc)
{
DWORD exitcode;
DWORD err;
if (!GetExitCodeProcess(child->hProcess, &exitcode)) {
/* If an error occurred, return immediately. */
err = GetLastError();
switch (err) {
case ERROR_INVALID_PARAMETER:
errno = ECHILD;
break;
case ERROR_INVALID_HANDLE:
errno = EINVAL;
break;
default:
errno = map_errno(err);
break;
}
error_exit:
CloseChildHandle(child);
return -1;
}
if (exitcode != STILL_ACTIVE) {
rb_pid_t pid;
/* If already died, wait process's real termination. */
if (rb_w32_wait_events_blocking(&child->hProcess, 1, INFINITE) != WAIT_OBJECT_0) {
goto error_exit;
}
pid = child->pid;
CloseChildHandle(child);
if (stat_loc) {
*stat_loc = exitcode << 8;
if (exitcode & 0xC0000000) {
static const struct {
DWORD status;
int sig;
} table[] = {
{STATUS_ACCESS_VIOLATION, SIGSEGV},
{STATUS_ILLEGAL_INSTRUCTION, SIGILL},
{STATUS_PRIVILEGED_INSTRUCTION, SIGILL},
{STATUS_FLOAT_DENORMAL_OPERAND, SIGFPE},
{STATUS_FLOAT_DIVIDE_BY_ZERO, SIGFPE},
{STATUS_FLOAT_INEXACT_RESULT, SIGFPE},
{STATUS_FLOAT_INVALID_OPERATION, SIGFPE},
{STATUS_FLOAT_OVERFLOW, SIGFPE},
{STATUS_FLOAT_STACK_CHECK, SIGFPE},
{STATUS_FLOAT_UNDERFLOW, SIGFPE},
#ifdef STATUS_FLOAT_MULTIPLE_FAULTS
{STATUS_FLOAT_MULTIPLE_FAULTS, SIGFPE},
#endif
#ifdef STATUS_FLOAT_MULTIPLE_TRAPS
{STATUS_FLOAT_MULTIPLE_TRAPS, SIGFPE},
#endif
{STATUS_CONTROL_C_EXIT, SIGINT},
};
int i;
for (i = 0; i < (int)numberof(table); i++) {
if (table[i].status == exitcode) {
*stat_loc |= table[i].sig;
break;
}
}
// if unknown status, assume SEGV
if (i >= (int)numberof(table))
*stat_loc |= SIGSEGV;
}
}
return pid;
}
return 0;
}
/* License: Artistic or GPL */
rb_pid_t
waitpid(rb_pid_t pid, int *stat_loc, int options)
{
DWORD timeout;
/* Artistic or GPL part start */
if (options == WNOHANG) {
timeout = 0;
}
else {
timeout = INFINITE;
}
/* Artistic or GPL part end */
if (pid == -1) {
int count = 0;
int ret;
HANDLE events[MAXCHILDNUM];
struct ChildRecord* cause;
FOREACH_CHILD(child) {
if (!child->pid || child->pid < 0) continue;
if ((pid = poll_child_status(child, stat_loc))) return pid;
events[count++] = child->hProcess;
} END_FOREACH_CHILD;
if (!count) {
errno = ECHILD;
return -1;
}
ret = rb_w32_wait_events_blocking(events, count, timeout);
if (ret == WAIT_TIMEOUT) return 0;
if ((ret -= WAIT_OBJECT_0) == count) {
return -1;
}
if (ret > count) {
errno = map_errno(GetLastError());
return -1;
}
cause = FindChildSlotByHandle(events[ret]);
if (!cause) {
errno = ECHILD;
return -1;
}
return poll_child_status(cause, stat_loc);
}
else {
struct ChildRecord* child = FindChildSlot(pid);
int retried = 0;
if (!child) {
errno = ECHILD;
return -1;
}
while (!(pid = poll_child_status(child, stat_loc))) {
/* wait... */
int ret = rb_w32_wait_events_blocking(&child->hProcess, 1, timeout);
if (ret == WAIT_OBJECT_0 + 1) return -1; /* maybe EINTR */
if (ret != WAIT_OBJECT_0) {
/* still active */
if (options & WNOHANG) {
pid = 0;
break;
}
++retried;
}
}
if (pid == -1 && retried) pid = 0;
}
return pid;
}
#include <sys/timeb.h>
static int have_precisetime = -1;
static void
get_systemtime(FILETIME *ft)
{
typedef void (WINAPI *get_time_func)(FILETIME *ft);
static get_time_func func = (get_time_func)-1;
if (func == (get_time_func)-1) {
/* GetSystemTimePreciseAsFileTime is available since Windows 8 and Windows Server 2012. */
func = (get_time_func)get_proc_address("kernel32", "GetSystemTimePreciseAsFileTime", NULL);
if (func == NULL) {
func = GetSystemTimeAsFileTime;
have_precisetime = 0;
}
else
have_precisetime = 1;
}
if (!ft) return;
func(ft);
}
/* License: Ruby's */
/* split FILETIME value into UNIX time and sub-seconds in NT ticks */
static time_t
filetime_split(const FILETIME* ft, long *subsec)
{
ULARGE_INTEGER tmp;
unsigned LONG_LONG lt;
const unsigned LONG_LONG subsec_unit = (unsigned LONG_LONG)10 * 1000 * 1000;
tmp.LowPart = ft->dwLowDateTime;
tmp.HighPart = ft->dwHighDateTime;
lt = tmp.QuadPart;
/* lt is now 100-nanosec intervals since 1601/01/01 00:00:00 UTC,
convert it into UNIX time (since 1970/01/01 00:00:00 UTC).
the first leap second is at 1972/06/30, so we doesn't need to think
about it. */
lt -= (LONG_LONG)((1970-1601)*365.2425) * 24 * 60 * 60 * subsec_unit;
*subsec = (long)(lt % subsec_unit);
return (time_t)(lt / subsec_unit);
}
/* License: Ruby's */
int __cdecl
gettimeofday(struct timeval *tv, struct timezone *tz)
{
FILETIME ft;
long subsec;
get_systemtime(&ft);
tv->tv_sec = filetime_split(&ft, &subsec);
tv->tv_usec = subsec / 10;
return 0;
}
/* License: Ruby's */
int
clock_gettime(clockid_t clock_id, struct timespec *sp)
{
switch (clock_id) {
case CLOCK_REALTIME:
{
FILETIME ft;
long subsec;
get_systemtime(&ft);
sp->tv_sec = filetime_split(&ft, &subsec);
sp->tv_nsec = subsec * 100;
return 0;
}
case CLOCK_MONOTONIC:
{
LARGE_INTEGER freq;
LARGE_INTEGER count;
if (!QueryPerformanceFrequency(&freq)) {
errno = map_errno(GetLastError());
return -1;
}
if (!QueryPerformanceCounter(&count)) {
errno = map_errno(GetLastError());
return -1;
}
sp->tv_sec = count.QuadPart / freq.QuadPart;
if (freq.QuadPart < 1000000000)
sp->tv_nsec = (count.QuadPart % freq.QuadPart) * 1000000000 / freq.QuadPart;
else
sp->tv_nsec = (long)((count.QuadPart % freq.QuadPart) * (1000000000.0 / freq.QuadPart));
return 0;
}
default:
errno = EINVAL;
return -1;
}
}
/* License: Ruby's */
int
clock_getres(clockid_t clock_id, struct timespec *sp)
{
switch (clock_id) {
case CLOCK_REALTIME:
{
sp->tv_sec = 0;
sp->tv_nsec = 1000;
return 0;
}
case CLOCK_MONOTONIC:
{
LARGE_INTEGER freq;
if (!QueryPerformanceFrequency(&freq)) {
errno = map_errno(GetLastError());
return -1;
}
sp->tv_sec = 0;
sp->tv_nsec = (long)(1000000000.0 / freq.QuadPart);
return 0;
}
default:
errno = EINVAL;
return -1;
}
}
/* License: Ruby's */
static char *
w32_getcwd(char *buffer, int size, UINT cp, void *alloc(int, void *), void *arg)
{
WCHAR *p;
int wlen, len;
len = GetCurrentDirectoryW(0, NULL);
if (!len) {
errno = map_errno(GetLastError());
return NULL;
}
if (buffer && size < len) {
errno = ERANGE;
return NULL;
}
p = ALLOCA_N(WCHAR, len);
if (!GetCurrentDirectoryW(len, p)) {
errno = map_errno(GetLastError());
return NULL;
}
wlen = translate_wchar(p, L'\\', L'/') - p + 1;
len = WideCharToMultiByte(cp, 0, p, wlen, NULL, 0, NULL, NULL);
if (buffer) {
if (size < len) {
errno = ERANGE;
return NULL;
}
}
else {
buffer = (*alloc)(len, arg);
if (!buffer) {
errno = ENOMEM;
return NULL;
}
}
WideCharToMultiByte(cp, 0, p, wlen, buffer, len, NULL, NULL);
return buffer;
}
/* License: Ruby's */
static void *
getcwd_alloc(int size, void *dummy)
{
return malloc(size);
}
/* License: Ruby's */
char *
rb_w32_getcwd(char *buffer, int size)
{
return w32_getcwd(buffer, size, filecp(), getcwd_alloc, NULL);
}
/* License: Ruby's */
char *
rb_w32_ugetcwd(char *buffer, int size)
{
return w32_getcwd(buffer, size, CP_UTF8, getcwd_alloc, NULL);
}
/* License: Ruby's */
static void *
getcwd_value(int size, void *arg)
{
VALUE str = *(VALUE *)arg = rb_utf8_str_new(0, size - 1);
return RSTRING_PTR(str);
}
/* License: Ruby's */
VALUE
rb_dir_getwd_ospath(void)
{
VALUE cwd = Qnil;
w32_getcwd(NULL, 0, CP_UTF8, getcwd_value, &cwd);
return cwd;
}
/* License: Artistic or GPL */
int
chown(const char *path, int owner, int group)
{
return 0;
}
/* License: Artistic or GPL */
int
rb_w32_uchown(const char *path, int owner, int group)
{
return 0;
}
int
lchown(const char *path, int owner, int group)
{
return 0;
}
int
rb_w32_ulchown(const char *path, int owner, int group)
{
return 0;
}
/* License: Ruby's */
int
kill(rb_pid_t pid, int sig)
{
int ret = 0;
DWORD err;
if (pid < 0 || (pid == 0 && sig != SIGINT)) {
errno = EINVAL;
return -1;
}
if ((unsigned int)pid == GetCurrentProcessId() &&
(sig != 0 && sig != SIGKILL)) {
if ((ret = raise(sig)) != 0) {
/* MSVCRT doesn't set errno... */
errno = EINVAL;
}
return ret;
}
switch (sig) {
case 0:
RUBY_CRITICAL {
HANDLE hProc =
OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, (DWORD)pid);
if (hProc == NULL || hProc == INVALID_HANDLE_VALUE) {
if (GetLastError() == ERROR_INVALID_PARAMETER) {
errno = ESRCH;
}
else {
errno = EPERM;
}
ret = -1;
}
else {
CloseHandle(hProc);
}
}
break;
case SIGINT:
RUBY_CRITICAL {
DWORD ctrlEvent = CTRL_C_EVENT;
if (pid != 0) {
/* CTRL+C signal cannot be generated for process groups.
* Instead, we use CTRL+BREAK signal. */
ctrlEvent = CTRL_BREAK_EVENT;
}
if (!GenerateConsoleCtrlEvent(ctrlEvent, (DWORD)pid)) {
if ((err = GetLastError()) == 0)
errno = EPERM;
else
errno = map_errno(GetLastError());
ret = -1;
}
}
break;
case SIGKILL:
RUBY_CRITICAL {
HANDLE hProc;
struct ChildRecord* child = FindChildSlot(pid);
if (child) {
hProc = child->hProcess;
}
else {
hProc = OpenProcess(PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION, FALSE, (DWORD)pid);
}
if (hProc == NULL || hProc == INVALID_HANDLE_VALUE) {
if (GetLastError() == ERROR_INVALID_PARAMETER) {
errno = ESRCH;
}
else {
errno = EPERM;
}
ret = -1;
}
else {
DWORD status;
if (!GetExitCodeProcess(hProc, &status)) {
errno = map_errno(GetLastError());
ret = -1;
}
else if (status == STILL_ACTIVE) {
if (!TerminateProcess(hProc, 0)) {
errno = EPERM;
ret = -1;
}
}
else {
errno = ESRCH;
ret = -1;
}
if (!child) {
CloseHandle(hProc);
}
}
}
break;
default:
errno = EINVAL;
ret = -1;
break;
}
return ret;
}
/* License: Ruby's */
static int
wlink(const WCHAR *from, const WCHAR *to)
{
if (!CreateHardLinkW(to, from, NULL)) {
errno = map_errno(GetLastError());
return -1;
}
return 0;
}
/* License: Ruby's */
int
rb_w32_ulink(const char *from, const char *to)
{
WCHAR *wfrom;
WCHAR *wto;
int ret;
if (!(wfrom = utf8_to_wstr(from, NULL)))
return -1;
if (!(wto = utf8_to_wstr(to, NULL))) {
free(wfrom);
return -1;
}
ret = wlink(wfrom, wto);
free(wto);
free(wfrom);
return ret;
}
/* License: Ruby's */
int
link(const char *from, const char *to)
{
WCHAR *wfrom;
WCHAR *wto;
int ret;
if (!(wfrom = filecp_to_wstr(from, NULL)))
return -1;
if (!(wto = filecp_to_wstr(to, NULL))) {
free(wfrom);
return -1;
}
ret = wlink(wfrom, wto);
free(wto);
free(wfrom);
return ret;
}
/* License: Public Domain, copied from mingw headers */
#ifndef FILE_DEVICE_FILE_SYSTEM
# define FILE_DEVICE_FILE_SYSTEM 0x00000009
#endif
#ifndef FSCTL_GET_REPARSE_POINT
# define FSCTL_GET_REPARSE_POINT ((0x9<<16)|(42<<2))
#endif
#ifndef IO_REPARSE_TAG_SYMLINK
# define IO_REPARSE_TAG_SYMLINK 0xA000000CL
#endif
/* License: Ruby's */
static int
reparse_symlink(const WCHAR *path, rb_w32_reparse_buffer_t *rp, size_t size)
{
HANDLE f;
DWORD ret;
int e = 0;
f = open_special(path, 0, FILE_FLAG_OPEN_REPARSE_POINT);
if (f == INVALID_HANDLE_VALUE) {
return GetLastError();
}
if (!DeviceIoControl(f, FSCTL_GET_REPARSE_POINT, NULL, 0,
rp, size, &ret, NULL)) {
e = GetLastError();
}
else if (rp->ReparseTag != IO_REPARSE_TAG_SYMLINK &&
rp->ReparseTag != IO_REPARSE_TAG_MOUNT_POINT) {
e = ERROR_INVALID_PARAMETER;
}
CloseHandle(f);
return e;
}
/* License: Ruby's */
int
rb_w32_reparse_symlink_p(const WCHAR *path)
{
VALUE wtmp = 0;
rb_w32_reparse_buffer_t rbuf, *rp = &rbuf;
WCHAR *wbuf;
DWORD len;
int e;
e = rb_w32_read_reparse_point(path, rp, sizeof(rbuf), &wbuf, &len);
if (e == ERROR_MORE_DATA) {
size_t size = rb_w32_reparse_buffer_size(len + 1);
rp = ALLOCV(wtmp, size);
e = rb_w32_read_reparse_point(path, rp, size, &wbuf, &len);
ALLOCV_END(wtmp);
}
switch (e) {
case 0:
case ERROR_MORE_DATA:
return TRUE;
}
return FALSE;
}
/* License: Ruby's */
int
rb_w32_read_reparse_point(const WCHAR *path, rb_w32_reparse_buffer_t *rp,
size_t bufsize, WCHAR **result, DWORD *len)
{
int e = reparse_symlink(path, rp, bufsize);
DWORD ret = 0;
if (!e || e == ERROR_MORE_DATA) {
void *name;
if (rp->ReparseTag == IO_REPARSE_TAG_SYMLINK) {
name = ((char *)rp->SymbolicLinkReparseBuffer.PathBuffer +
rp->SymbolicLinkReparseBuffer.PrintNameOffset);
ret = rp->SymbolicLinkReparseBuffer.PrintNameLength;
*len = ret / sizeof(WCHAR);
}
else if (rp->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) {
static const WCHAR volume[] = L"Volume{";
enum {volume_prefix_len = rb_strlen_lit("\\??\\")};
name = ((char *)rp->MountPointReparseBuffer.PathBuffer +
rp->MountPointReparseBuffer.SubstituteNameOffset +
volume_prefix_len * sizeof(WCHAR));
ret = rp->MountPointReparseBuffer.SubstituteNameLength;
*len = ret / sizeof(WCHAR);
ret -= volume_prefix_len * sizeof(WCHAR);
if (ret > sizeof(volume) - 1 * sizeof(WCHAR) &&
memcmp(name, volume, sizeof(volume) - 1 * sizeof(WCHAR)) == 0)
return -1;
}
else {
return -1;
}
*result = name;
if (e) {
if ((char *)name + ret + sizeof(WCHAR) > (char *)rp + bufsize)
return e;
/* SubstituteName is not used */
}
((WCHAR *)name)[ret/sizeof(WCHAR)] = L'\0';
translate_wchar(name, L'\\', L'/');
return 0;
}
else {
return e;
}
}
/* License: Ruby's */
static ssize_t
w32_readlink(UINT cp, const char *path, char *buf, size_t bufsize)
{
VALUE rp_buf, rp_buf_bigger = 0;
DWORD len = MultiByteToWideChar(cp, 0, path, -1, NULL, 0);
size_t size = rb_w32_reparse_buffer_size(bufsize);
WCHAR *wname;
WCHAR *wpath = ALLOCV(rp_buf, sizeof(WCHAR) * len + size);
rb_w32_reparse_buffer_t *rp = (void *)(wpath + len);
ssize_t ret;
int e;
MultiByteToWideChar(cp, 0, path, -1, wpath, len);
e = rb_w32_read_reparse_point(wpath, rp, size, &wname, &len);
if (e == ERROR_MORE_DATA) {
size = rb_w32_reparse_buffer_size(len + 1);
rp = ALLOCV(rp_buf_bigger, size);
e = rb_w32_read_reparse_point(wpath, rp, size, &wname, &len);
}
if (e) {
ALLOCV_END(rp_buf);
ALLOCV_END(rp_buf_bigger);
errno = e == -1 ? EINVAL : map_errno(e);
return -1;
}
len = lstrlenW(wname);
ret = WideCharToMultiByte(cp, 0, wname, len, buf, bufsize, NULL, NULL);
ALLOCV_END(rp_buf);
ALLOCV_END(rp_buf_bigger);
if (!ret) {
ret = bufsize;
}
return ret;
}
/* License: Ruby's */
ssize_t
rb_w32_ureadlink(const char *path, char *buf, size_t bufsize)
{
return w32_readlink(CP_UTF8, path, buf, bufsize);
}
/* License: Ruby's */
ssize_t
readlink(const char *path, char *buf, size_t bufsize)
{
return w32_readlink(filecp(), path, buf, bufsize);
}
#ifndef SYMBOLIC_LINK_FLAG_DIRECTORY
#define SYMBOLIC_LINK_FLAG_DIRECTORY (0x1)
#endif
#ifndef SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE
#define SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE (0x2)
#endif
/* License: Ruby's */
static int
w32_symlink(UINT cp, const char *src, const char *link)
{
int atts, len1, len2;
VALUE buf;
WCHAR *wsrc, *wlink;
DWORD flag = 0;
BOOLEAN ret;
int e;
typedef BOOLEAN (WINAPI *create_symbolic_link_func)(WCHAR*, WCHAR*, DWORD);
static create_symbolic_link_func create_symbolic_link =
(create_symbolic_link_func)-1;
static DWORD create_flag = SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE;
if (create_symbolic_link == (create_symbolic_link_func)-1) {
/* Since Windows Vista and Windows Server 2008 */
create_symbolic_link = (create_symbolic_link_func)
get_proc_address("kernel32", "CreateSymbolicLinkW", NULL);
}
if (!create_symbolic_link) {
errno = ENOSYS;
return -1;
}
if (!*link) {
errno = ENOENT;
return -1;
}
if (!*src) {
errno = EINVAL;
return -1;
}
len1 = MultiByteToWideChar(cp, 0, src, -1, NULL, 0);
len2 = MultiByteToWideChar(cp, 0, link, -1, NULL, 0);
wsrc = ALLOCV_N(WCHAR, buf, len1+len2);
wlink = wsrc + len1;
MultiByteToWideChar(cp, 0, src, -1, wsrc, len1);
MultiByteToWideChar(cp, 0, link, -1, wlink, len2);
translate_wchar(wsrc, L'/', L'\\');
atts = GetFileAttributesW(wsrc);
if (atts != -1 && atts & FILE_ATTRIBUTE_DIRECTORY)
flag = SYMBOLIC_LINK_FLAG_DIRECTORY;
ret = create_symbolic_link(wlink, wsrc, flag |= create_flag);
if (!ret &&
(e = GetLastError()) == ERROR_INVALID_PARAMETER &&
(flag & SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE)) {
create_flag = 0;
flag &= ~SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE;
ret = create_symbolic_link(wlink, wsrc, flag);
if (!ret) e = GetLastError();
}
ALLOCV_END(buf);
if (!ret) {
errno = map_errno(e);
return -1;
}
return 0;
}
/* License: Ruby's */
int
rb_w32_usymlink(const char *src, const char *link)
{
return w32_symlink(CP_UTF8, src, link);
}
/* License: Ruby's */
int
symlink(const char *src, const char *link)
{
return w32_symlink(filecp(), src, link);
}
/* License: Ruby's */
rb_pid_t
wait(int *status)
{
return waitpid(-1, status, 0);
}
/* License: Ruby's */
static char *
w32_getenv(const char *name, UINT cp)
{
WCHAR *wenvarea, *wenv;
int len = strlen(name);
char *env, *found = NULL;
int wlen;
if (len == 0) return NULL;
if (!NTLoginName) {
/* initialized in init_env, uenvarea_mutex should have been
* initialized before it */
return getenv(name);
}
thread_exclusive(uenvarea) {
if (uenvarea) {
free(uenvarea);
uenvarea = NULL;
}
wenvarea = GetEnvironmentStringsW();
if (!wenvarea) {
map_errno(GetLastError());
continue;
}
for (wenv = wenvarea, wlen = 1; *wenv; wenv += lstrlenW(wenv) + 1)
wlen += lstrlenW(wenv) + 1;
uenvarea = wstr_to_mbstr(cp, wenvarea, wlen, NULL);
FreeEnvironmentStringsW(wenvarea);
if (!uenvarea)
continue;
for (env = uenvarea; *env; env += strlen(env) + 1) {
if (strncasecmp(env, name, len) == 0 && *(env + len) == '=') {
found = env + len + 1;
break;
}
}
}
return found;
}
/* License: Ruby's */
char *
rb_w32_ugetenv(const char *name)
{
return w32_getenv(name, CP_UTF8);
}
/* License: Ruby's */
char *
rb_w32_getenv(const char *name)
{
return w32_getenv(name, CP_ACP);
}
/* License: Ruby's */
static DWORD
get_attr_vsn(const WCHAR *path, DWORD *atts, DWORD *vsn)
{
BY_HANDLE_FILE_INFORMATION st = {0};
DWORD e = 0;
HANDLE h = open_special(path, 0, FILE_FLAG_OPEN_REPARSE_POINT);
if (h == INVALID_HANDLE_VALUE) {
e = GetLastError();
ASSUME(e);
return e;
}
if (!GetFileInformationByHandle(h, &st)) {
e = GetLastError();
ASSUME(e);
}
else {
*atts = st.dwFileAttributes;
*vsn = st.dwVolumeSerialNumber;
}
CloseHandle(h);
return e;
}
/* License: Artistic or GPL */
static int
wrename(const WCHAR *oldpath, const WCHAR *newpath)
{
int res = 0;
DWORD oldatts = 0, newatts = (DWORD)-1;
DWORD oldvsn = 0, newvsn = 0, e;
e = get_attr_vsn(oldpath, &oldatts, &oldvsn);
if (e) {
errno = map_errno(e);
return -1;
}
if (oldatts & FILE_ATTRIBUTE_REPARSE_POINT) {
HANDLE fh = open_special(oldpath, 0, 0);
if (fh == INVALID_HANDLE_VALUE) {
e = GetLastError();
if (e == ERROR_CANT_RESOLVE_FILENAME) {
errno = ELOOP;
return -1;
}
}
CloseHandle(fh);
}
get_attr_vsn(newpath, &newatts, &newvsn);
RUBY_CRITICAL {
if (newatts != (DWORD)-1 && newatts & FILE_ATTRIBUTE_READONLY)
SetFileAttributesW(newpath, newatts & ~ FILE_ATTRIBUTE_READONLY);
if (!MoveFileExW(oldpath, newpath, MOVEFILE_REPLACE_EXISTING | MOVEFILE_COPY_ALLOWED))
res = -1;
if (res) {
DWORD e = GetLastError();
if ((e == ERROR_ACCESS_DENIED) && (oldatts & FILE_ATTRIBUTE_DIRECTORY) &&
oldvsn != newvsn)
errno = EXDEV;
else
errno = map_errno(e);
}
else
SetFileAttributesW(newpath, oldatts);
}
return res;
}
/* License: Ruby's */
int
rb_w32_urename(const char *from, const char *to)
{
WCHAR *wfrom;
WCHAR *wto;
int ret = -1;
if (!(wfrom = utf8_to_wstr(from, NULL)))
return -1;
if (!(wto = utf8_to_wstr(to, NULL))) {
free(wfrom);
return -1;
}
ret = wrename(wfrom, wto);
free(wto);
free(wfrom);
return ret;
}
/* License: Ruby's */
int
rb_w32_rename(const char *from, const char *to)
{
WCHAR *wfrom;
WCHAR *wto;
int ret = -1;
if (!(wfrom = filecp_to_wstr(from, NULL)))
return -1;
if (!(wto = filecp_to_wstr(to, NULL))) {
free(wfrom);
return -1;
}
ret = wrename(wfrom, wto);
free(wto);
free(wfrom);
return ret;
}
/* License: Ruby's */
static int
isUNCRoot(const WCHAR *path)
{
if (path[0] == L'\\' && path[1] == L'\\') {
const WCHAR *p = path + 2;
if (p[0] == L'?' && p[1] == L'\\') {
p += 2;
}
for (; *p; p++) {
if (*p == L'\\')
break;
}
if (p[0] && p[1]) {
for (p++; *p; p++) {
if (*p == L'\\')
break;
}
if (!p[0] || !p[1] || (p[1] == L'.' && !p[2]))
return 1;
}
}
return 0;
}
#define COPY_STAT(src, dest, size_cast) do { \
(dest).st_dev = (src).st_dev; \
(dest).st_ino = (src).st_ino; \
(dest).st_mode = (src).st_mode; \
(dest).st_nlink = (src).st_nlink; \
(dest).st_uid = (src).st_uid; \
(dest).st_gid = (src).st_gid; \
(dest).st_rdev = (src).st_rdev; \
(dest).st_size = size_cast(src).st_size; \
(dest).st_atime = (src).st_atime; \
(dest).st_mtime = (src).st_mtime; \
(dest).st_ctime = (src).st_ctime; \
} while (0)
static time_t filetime_to_unixtime(const FILETIME *ft);
static long filetime_to_nsec(const FILETIME *ft);
static WCHAR *name_for_stat(WCHAR *buf, const WCHAR *path);
static DWORD stati128_handle(HANDLE h, struct stati128 *st);
#undef fstat
/* License: Ruby's */
int
rb_w32_fstat(int fd, struct stat *st)
{
BY_HANDLE_FILE_INFORMATION info;
int ret = fstat(fd, st);
if (ret) return ret;
if (GetEnvironmentVariableW(L"TZ", NULL, 0) == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND) return ret;
if (GetFileInformationByHandle((HANDLE)_get_osfhandle(fd), &info)) {
st->st_atime = filetime_to_unixtime(&info.ftLastAccessTime);
st->st_mtime = filetime_to_unixtime(&info.ftLastWriteTime);
st->st_ctime = filetime_to_unixtime(&info.ftCreationTime);
}
return ret;
}
/* License: Ruby's */
int
rb_w32_fstati128(int fd, struct stati128 *st)
{
struct stat tmp;
int ret = fstat(fd, &tmp);
if (ret) return ret;
COPY_STAT(tmp, *st, +);
stati128_handle((HANDLE)_get_osfhandle(fd), st);
return ret;
}
#if !defined FILE_INVALID_FILE_ID && !defined __MINGW32__
typedef struct {
BYTE Identifier[16];
} FILE_ID_128;
#endif
#if !defined(_WIN32_WINNT_WIN8) || _WIN32_WINNT < 0x602
#define FileIdInfo 0x12
typedef struct {
unsigned LONG_LONG VolumeSerialNumber;
FILE_ID_128 FileId;
} FILE_ID_INFO;
#endif
static DWORD
get_ino(HANDLE h, FILE_ID_INFO *id)
{
typedef BOOL (WINAPI *gfibhe_t)(HANDLE, int, void *, DWORD);
static gfibhe_t pGetFileInformationByHandleEx = (gfibhe_t)-1;
if (pGetFileInformationByHandleEx == (gfibhe_t)-1)
/* Since Windows Vista and Windows Server 2008 */
pGetFileInformationByHandleEx = (gfibhe_t)get_proc_address("kernel32", "GetFileInformationByHandleEx", NULL);
if (pGetFileInformationByHandleEx) {
if (pGetFileInformationByHandleEx(h, FileIdInfo, id, sizeof(*id)))
return 0;
else
return GetLastError();
}
return ERROR_INVALID_PARAMETER;
}
/* License: Ruby's */
static DWORD
stati128_handle(HANDLE h, struct stati128 *st)
{
BY_HANDLE_FILE_INFORMATION info;
DWORD attr = (DWORD)-1;
if (GetFileInformationByHandle(h, &info)) {
FILE_ID_INFO fii;
st->st_size = ((__int64)info.nFileSizeHigh << 32) | info.nFileSizeLow;
st->st_atime = filetime_to_unixtime(&info.ftLastAccessTime);
st->st_atimensec = filetime_to_nsec(&info.ftLastAccessTime);
st->st_mtime = filetime_to_unixtime(&info.ftLastWriteTime);
st->st_mtimensec = filetime_to_nsec(&info.ftLastWriteTime);
st->st_ctime = filetime_to_unixtime(&info.ftCreationTime);
st->st_ctimensec = filetime_to_nsec(&info.ftCreationTime);
st->st_nlink = info.nNumberOfLinks;
attr = info.dwFileAttributes;
if (!get_ino(h, &fii)) {
st->st_ino = *((unsigned __int64 *)&fii.FileId);
st->st_inohigh = *((__int64 *)&fii.FileId + 1);
}
else {
st->st_ino = ((__int64)info.nFileIndexHigh << 32) | info.nFileIndexLow;
st->st_inohigh = 0;
}
}
return attr;
}
/* License: Ruby's */
static time_t
filetime_to_unixtime(const FILETIME *ft)
{
long subsec;
time_t t = filetime_split(ft, &subsec);
if (t < 0) return 0;
return t;
}
/* License: Ruby's */
static long
filetime_to_nsec(const FILETIME *ft)
{
if (have_precisetime <= 0)
return 0;
else {
ULARGE_INTEGER tmp;
tmp.LowPart = ft->dwLowDateTime;
tmp.HighPart = ft->dwHighDateTime;
return (long)(tmp.QuadPart % 10000000) * 100;
}
}
/* License: Ruby's */
static unsigned
fileattr_to_unixmode(DWORD attr, const WCHAR *path, unsigned mode)
{
if (attr & FILE_ATTRIBUTE_READONLY) {
mode |= S_IREAD;
}
else {
mode |= S_IREAD | S_IWRITE | S_IWUSR;
}
if (mode & S_IFMT) {
/* format is already set */
}
else if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
/* Only used by stat_by_find in the case the file can not be opened.
* In this case we can't get more details. */
}
else if (attr & FILE_ATTRIBUTE_DIRECTORY) {
mode |= S_IFDIR | S_IEXEC;
}
else {
mode |= S_IFREG;
}
if (path && (mode & S_IFREG)) {
const WCHAR *end = path + lstrlenW(path);
while (path < end) {
end = CharPrevW(path, end);
if (*end == L'.') {
if ((_wcsicmp(end, L".bat") == 0) ||
(_wcsicmp(end, L".cmd") == 0) ||
(_wcsicmp(end, L".com") == 0) ||
(_wcsicmp(end, L".exe") == 0)) {
mode |= S_IEXEC;
}
break;
}
if (!iswalnum(*end)) break;
}
}
mode |= (mode & 0500) >> 3;
mode |= (mode & 0500) >> 6;
return mode;
}
/* License: Ruby's */
static int
check_valid_dir(const WCHAR *path)
{
WIN32_FIND_DATAW fd;
HANDLE fh;
WCHAR full[PATH_MAX];
WCHAR *dmy;
WCHAR *p, *q;
/* GetFileAttributes() determines "..." as directory. */
/* We recheck it by FindFirstFile(). */
if (!(p = wcsstr(path, L"...")))
return 0;
q = p + wcsspn(p, L".");
if ((p == path || wcschr(L":/\\", *(p - 1))) &&
(!*q || wcschr(L":/\\", *q))) {
errno = ENOENT;
return -1;
}
/* if the specified path is the root of a drive and the drive is empty, */
/* FindFirstFile() returns INVALID_HANDLE_VALUE. */
if (!GetFullPathNameW(path, sizeof(full) / sizeof(WCHAR), full, &dmy)) {
errno = map_errno(GetLastError());
return -1;
}
if (full[1] == L':' && !full[3] && GetDriveTypeW(full) != DRIVE_NO_ROOT_DIR)
return 0;
fh = open_dir_handle(path, &fd);
if (fh == INVALID_HANDLE_VALUE)
return -1;
FindClose(fh);
return 0;
}
/* License: Ruby's */
static int
stat_by_find(const WCHAR *path, struct stati128 *st)
{
HANDLE h;
WIN32_FIND_DATAW wfd;
/* Fall back to FindFirstFile for ERROR_SHARING_VIOLATION */
h = FindFirstFileW(path, &wfd);
if (h == INVALID_HANDLE_VALUE) {
errno = map_errno(GetLastError());
return -1;
}
FindClose(h);
st->st_mode = fileattr_to_unixmode(wfd.dwFileAttributes, path, 0);
st->st_atime = filetime_to_unixtime(&wfd.ftLastAccessTime);
st->st_atimensec = filetime_to_nsec(&wfd.ftLastAccessTime);
st->st_mtime = filetime_to_unixtime(&wfd.ftLastWriteTime);
st->st_mtimensec = filetime_to_nsec(&wfd.ftLastWriteTime);
st->st_ctime = filetime_to_unixtime(&wfd.ftCreationTime);
st->st_ctimensec = filetime_to_nsec(&wfd.ftCreationTime);
st->st_size = ((__int64)wfd.nFileSizeHigh << 32) | wfd.nFileSizeLow;
st->st_nlink = 1;
return 0;
}
/* License: Ruby's */
static int
path_drive(const WCHAR *path)
{
return (iswalpha(path[0]) && path[1] == L':') ?
towupper(path[0]) - L'A' : _getdrive() - 1;
}
/* License: Ruby's */
static int
winnt_stat(const WCHAR *path, struct stati128 *st, BOOL lstat)
{
DWORD flags = lstat ? FILE_FLAG_OPEN_REPARSE_POINT : 0;
HANDLE f;
WCHAR finalname[PATH_MAX];
int open_error;
memset(st, 0, sizeof(*st));
f = open_special(path, 0, flags);
open_error = GetLastError();
if (f == INVALID_HANDLE_VALUE && !lstat) {
/* Support stat (not only lstat) of UNIXSocket */
FILE_ATTRIBUTE_TAG_INFO attr_info;
DWORD e;
f = open_special(path, 0, FILE_FLAG_OPEN_REPARSE_POINT);
e = GetFileInformationByHandleEx( f, FileAttributeTagInfo,
&attr_info, sizeof(attr_info));
if (!e || attr_info.ReparseTag != IO_REPARSE_TAG_AF_UNIX) {
CloseHandle(f);
f = INVALID_HANDLE_VALUE;
}
}
if (f != INVALID_HANDLE_VALUE) {
DWORD attr = stati128_handle(f, st);
const DWORD len = get_final_path(f, finalname, numberof(finalname), 0);
unsigned mode = 0;
switch (GetFileType(f)) {
case FILE_TYPE_CHAR:
mode = S_IFCHR;
break;
case FILE_TYPE_PIPE:
mode = S_IFIFO;
break;
default:
if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
FILE_ATTRIBUTE_TAG_INFO attr_info;
DWORD e;
e = GetFileInformationByHandleEx( f, FileAttributeTagInfo,
&attr_info, sizeof(attr_info));
if (e && attr_info.ReparseTag == IO_REPARSE_TAG_AF_UNIX) {
st->st_size = 0;
mode |= S_IFSOCK;
}
else if (rb_w32_reparse_symlink_p(path)) {
/* TODO: size in which encoding? */
st->st_size = 0;
mode |= S_IFLNK | S_IEXEC;
}
else {
mode |= S_IFDIR | S_IEXEC;
}
}
}
CloseHandle(f);
if (attr & FILE_ATTRIBUTE_DIRECTORY) {
if (check_valid_dir(path)) return -1;
}
st->st_mode = fileattr_to_unixmode(attr, path, mode);
if (len) {
finalname[min(len, numberof(finalname)-1)] = L'\0';
path = finalname;
if (wcsncmp(path, namespace_prefix, numberof(namespace_prefix)) == 0)
path += numberof(namespace_prefix);
}
}
else {
if ((open_error == ERROR_FILE_NOT_FOUND) || (open_error == ERROR_INVALID_NAME)
|| (open_error == ERROR_PATH_NOT_FOUND || (open_error == ERROR_BAD_NETPATH))) {
errno = map_errno(open_error);
return -1;
}
if (stat_by_find(path, st)) return -1;
}
st->st_dev = st->st_rdev = path_drive(path);
return 0;
}
/* License: Ruby's */
int
rb_w32_stat(const char *path, struct stat *st)
{
struct stati128 tmp;
if (w32_stati128(path, &tmp, filecp(), FALSE)) return -1;
COPY_STAT(tmp, *st, (_off_t));
return 0;
}
/* License: Ruby's */
static int
wstati128(const WCHAR *path, struct stati128 *st, BOOL lstat)
{
WCHAR *buf1;
int ret, size;
VALUE v;
if (!path || !st) {
errno = EFAULT;
return -1;
}
size = lstrlenW(path) + 2;
buf1 = ALLOCV_N(WCHAR, v, size);
if (!(path = name_for_stat(buf1, path)))
return -1;
ret = winnt_stat(path, st, lstat);
if (v)
ALLOCV_END(v);
return ret;
}
/* License: Ruby's */
static WCHAR *
name_for_stat(WCHAR *buf1, const WCHAR *path)
{
const WCHAR *p;
WCHAR *s, *end;
int len;
for (p = path, s = buf1; *p; p++, s++) {
if (*p == L'/')
*s = L'\\';
else
*s = *p;
}
*s = '\0';
len = s - buf1;
if (!len || L'\"' == *(--s)) {
errno = ENOENT;
return NULL;
}
end = buf1 + len - 1;
if (isUNCRoot(buf1)) {
if (*end == L'.')
*end = L'\0';
else if (*end != L'\\')
lstrcatW(buf1, L"\\");
}
else if (*end == L'\\' || (buf1 + 1 == end && *end == L':'))
lstrcatW(buf1, L".");
return buf1;
}
/* License: Ruby's */
int
rb_w32_ustati128(const char *path, struct stati128 *st)
{
return w32_stati128(path, st, CP_UTF8, FALSE);
}
/* License: Ruby's */
int
rb_w32_stati128(const char *path, struct stati128 *st)
{
return w32_stati128(path, st, filecp(), FALSE);
}
/* License: Ruby's */
static int
w32_stati128(const char *path, struct stati128 *st, UINT cp, BOOL lstat)
{
WCHAR *wpath;
int ret;
if (!(wpath = mbstr_to_wstr(cp, path, -1, NULL)))
return -1;
ret = wstati128(wpath, st, lstat);
free(wpath);
return ret;
}
/* License: Ruby's */
int
rb_w32_ulstati128(const char *path, struct stati128 *st)
{
return w32_stati128(path, st, CP_UTF8, TRUE);
}
/* License: Ruby's */
int
rb_w32_lstati128(const char *path, struct stati128 *st)
{
return w32_stati128(path, st, filecp(), TRUE);
}
/* License: Ruby's */
rb_off_t
rb_w32_lseek(int fd, rb_off_t ofs, int whence)
{
SOCKET sock = TO_SOCKET(fd);
if (is_socket(sock) || is_pipe(sock)) {
errno = ESPIPE;
return -1;
}
return _lseeki64(fd, ofs, whence);
}
/* License: Ruby's */
static int
w32_access(const char *path, int mode, UINT cp)
{
struct stati128 stat;
if (w32_stati128(path, &stat, cp, FALSE) != 0)
return -1;
mode <<= 6;
if ((stat.st_mode & mode) != mode) {
errno = EACCES;
return -1;
}
return 0;
}
/* License: Ruby's */
int
rb_w32_access(const char *path, int mode)
{
return w32_access(path, mode, filecp());
}
/* License: Ruby's */
int
rb_w32_uaccess(const char *path, int mode)
{
return w32_access(path, mode, CP_UTF8);
}
/* License: Ruby's */
static int
rb_chsize(HANDLE h, rb_off_t size)
{
long upos, lpos, usize, lsize;
int ret = -1;
DWORD e;
if ((lpos = SetFilePointer(h, 0, (upos = 0, &upos), SEEK_CUR)) == -1L &&
(e = GetLastError())) {
errno = map_errno(e);
return -1;
}
usize = (long)(size >> 32);
lsize = (long)size;
if (SetFilePointer(h, lsize, &usize, SEEK_SET) == (DWORD)-1L &&
(e = GetLastError())) {
errno = map_errno(e);
}
else if (!SetEndOfFile(h)) {
errno = map_errno(GetLastError());
}
else {
ret = 0;
}
SetFilePointer(h, lpos, &upos, SEEK_SET);
return ret;
}
/* License: Ruby's */
static int
w32_truncate(const char *path, rb_off_t length, UINT cp)
{
HANDLE h;
int ret;
WCHAR *wpath;
if (!(wpath = mbstr_to_wstr(cp, path, -1, NULL)))
return -1;
h = CreateFileW(wpath, GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
if (h == INVALID_HANDLE_VALUE) {
errno = map_errno(GetLastError());
free(wpath);
return -1;
}
free(wpath);
ret = rb_chsize(h, length);
CloseHandle(h);
return ret;
}
/* License: Ruby's */
int
rb_w32_utruncate(const char *path, rb_off_t length)
{
return w32_truncate(path, length, CP_UTF8);
}
/* License: Ruby's */
int
rb_w32_truncate(const char *path, rb_off_t length)
{
return w32_truncate(path, length, filecp());
}
/* License: Ruby's */
int
rb_w32_ftruncate(int fd, rb_off_t length)
{
HANDLE h;
h = (HANDLE)_get_osfhandle(fd);
if (h == (HANDLE)-1) return -1;
return rb_chsize(h, length);
}
/* License: Ruby's */
static long
filetime_to_clock(FILETIME *ft)
{
__int64 qw = ft->dwHighDateTime;
qw <<= 32;
qw |= ft->dwLowDateTime;
qw /= 10000; /* File time ticks at 0.1uS, clock at 1mS */
return (long) qw;
}
/* License: Ruby's */
int
rb_w32_times(struct tms *tmbuf)
{
FILETIME create, exit, kernel, user;
if (GetProcessTimes(GetCurrentProcess(),&create, &exit, &kernel, &user)) {
tmbuf->tms_utime = filetime_to_clock(&user);
tmbuf->tms_stime = filetime_to_clock(&kernel);
tmbuf->tms_cutime = 0;
tmbuf->tms_cstime = 0;
}
else {
tmbuf->tms_utime = clock();
tmbuf->tms_stime = 0;
tmbuf->tms_cutime = 0;
tmbuf->tms_cstime = 0;
}
return 0;
}
/* License: Ruby's */
#define yield_once() Sleep(0)
#define yield_until(condition) do yield_once(); while (!(condition))
/* License: Ruby's */
struct asynchronous_arg_t {
/* output field */
void* stackaddr;
int errnum;
/* input field */
uintptr_t (*func)(uintptr_t self, int argc, uintptr_t* argv);
uintptr_t self;
int argc;
uintptr_t* argv;
};
/* License: Ruby's */
static DWORD WINAPI
call_asynchronous(PVOID argp)
{
DWORD ret;
struct asynchronous_arg_t *arg = argp;
arg->stackaddr = &argp;
ret = (DWORD)arg->func(arg->self, arg->argc, arg->argv);
arg->errnum = errno;
return ret;
}
/* License: Ruby's */
uintptr_t
rb_w32_asynchronize(asynchronous_func_t func, uintptr_t self,
int argc, uintptr_t* argv, uintptr_t intrval)
{
DWORD val;
BOOL interrupted = FALSE;
HANDLE thr;
RUBY_CRITICAL {
struct asynchronous_arg_t arg;
arg.stackaddr = NULL;
arg.errnum = 0;
arg.func = func;
arg.self = self;
arg.argc = argc;
arg.argv = argv;
thr = CreateThread(NULL, 0, call_asynchronous, &arg, 0, &val);
if (thr) {
yield_until(arg.stackaddr);
if (rb_w32_wait_events_blocking(&thr, 1, INFINITE) != WAIT_OBJECT_0) {
interrupted = TRUE;
if (TerminateThread(thr, intrval)) {
yield_once();
}
}
GetExitCodeThread(thr, &val);
CloseHandle(thr);
if (interrupted) {
/* must release stack of killed thread, why doesn't Windows? */
MEMORY_BASIC_INFORMATION m;
memset(&m, 0, sizeof(m));
if (!VirtualQuery(arg.stackaddr, &m, sizeof(m))) {
Debug(fprintf(stderr, "couldn't get stack base:%p:%d\n",
arg.stackaddr, GetLastError()));
}
else if (!VirtualFree(m.AllocationBase, 0, MEM_RELEASE)) {
Debug(fprintf(stderr, "couldn't release stack:%p:%d\n",
m.AllocationBase, GetLastError()));
}
errno = EINTR;
}
else {
errno = arg.errnum;
}
}
}
if (!thr) {
rb_fatal("failed to launch waiter thread:%ld", GetLastError());
}
return val;
}
/* License: Ruby's */
char **
rb_w32_get_environ(void)
{
WCHAR *envtop, *env;
char **myenvtop, **myenv;
int num;
/*
* We avoid values started with `='. If you want to deal those values,
* change this function, and some functions in hash.c which recognize
* `=' as delimiter or rb_w32_getenv() and ruby_setenv().
* CygWin deals these values by changing first `=' to '!'. But we don't
* use such trick and follow cmd.exe's way that just doesn't show these
* values.
*
* This function returns UTF-8 strings.
*/
envtop = GetEnvironmentStringsW();
for (env = envtop, num = 0; *env; env += lstrlenW(env) + 1)
if (*env != '=') num++;
myenvtop = (char **)malloc(sizeof(char *) * (num + 1));
for (env = envtop, myenv = myenvtop; *env; env += lstrlenW(env) + 1) {
if (*env != '=') {
if (!(*myenv = wstr_to_utf8(env, NULL))) {
break;
}
myenv++;
}
}
*myenv = NULL;
FreeEnvironmentStringsW(envtop);
return myenvtop;
}
/* License: Ruby's */
void
rb_w32_free_environ(char **env)
{
char **t = env;
while (*t) free(*t++);
free(env);
}
/* License: Ruby's */
rb_pid_t
rb_w32_getpid(void)
{
return GetCurrentProcessId();
}
/* License: Ruby's */
rb_pid_t
rb_w32_getppid(void)
{
typedef long (WINAPI query_func)(HANDLE, int, void *, ULONG, ULONG *);
static query_func *pNtQueryInformationProcess = (query_func *)-1;
rb_pid_t ppid = 0;
if (pNtQueryInformationProcess == (query_func *)-1)
pNtQueryInformationProcess = (query_func *)get_proc_address("ntdll.dll", "NtQueryInformationProcess", NULL);
if (pNtQueryInformationProcess) {
struct {
long ExitStatus;
void* PebBaseAddress;
uintptr_t AffinityMask;
uintptr_t BasePriority;
uintptr_t UniqueProcessId;
uintptr_t ParentProcessId;
} pbi;
ULONG len;
long ret = pNtQueryInformationProcess(GetCurrentProcess(), 0, &pbi, sizeof(pbi), &len);
if (!ret) {
ppid = pbi.ParentProcessId;
}
}
return ppid;
}
STATIC_ASSERT(std_handle, (STD_OUTPUT_HANDLE-STD_INPUT_HANDLE)==(STD_ERROR_HANDLE-STD_OUTPUT_HANDLE));
/* License: Ruby's */
#define set_new_std_handle(newfd, handle) do { \
if ((unsigned)(newfd) > 2) break; \
SetStdHandle(STD_INPUT_HANDLE+(STD_OUTPUT_HANDLE-STD_INPUT_HANDLE)*(newfd), \
(handle)); \
} while (0)
#define set_new_std_fd(newfd) set_new_std_handle(newfd, (HANDLE)rb_w32_get_osfhandle(newfd))
/* License: Ruby's */
int
rb_w32_dup2(int oldfd, int newfd)
{
int ret;
if (oldfd == newfd) return newfd;
ret = dup2(oldfd, newfd);
if (ret < 0) return ret;
set_new_std_fd(newfd);
return newfd;
}
/* License: Ruby's */
int
rb_w32_uopen(const char *file, int oflag, ...)
{
WCHAR *wfile;
int ret;
int pmode;
va_list arg;
va_start(arg, oflag);
pmode = va_arg(arg, int);
va_end(arg);
if (!(wfile = utf8_to_wstr(file, NULL)))
return -1;
ret = w32_wopen(wfile, oflag, pmode);
free(wfile);
return ret;
}
/* License: Ruby's */
static int
check_if_wdir(const WCHAR *wfile)
{
DWORD attr = GetFileAttributesW(wfile);
if (attr == (DWORD)-1L ||
!(attr & FILE_ATTRIBUTE_DIRECTORY) ||
check_valid_dir(wfile)) {
return FALSE;
}
errno = EISDIR;
return TRUE;
}
/* License: Ruby's */
int
rb_w32_open(const char *file, int oflag, ...)
{
WCHAR *wfile;
int ret;
int pmode;
va_list arg;
va_start(arg, oflag);
pmode = va_arg(arg, int);
va_end(arg);
if (!(wfile = filecp_to_wstr(file, NULL)))
return -1;
ret = w32_wopen(wfile, oflag, pmode);
free(wfile);
return ret;
}
/* License: Ruby's */
int
rb_w32_wopen(const WCHAR *file, int oflag, ...)
{
int pmode = 0;
if (oflag & O_CREAT) {
va_list arg;
va_start(arg, oflag);
pmode = va_arg(arg, int);
va_end(arg);
}
return w32_wopen(file, oflag, pmode);
}
static int
w32_wopen(const WCHAR *file, int oflag, int pmode)
{
char flags = 0;
int fd;
DWORD access;
DWORD create;
DWORD attr = FILE_ATTRIBUTE_NORMAL;
SECURITY_ATTRIBUTES sec;
HANDLE h;
int share_delete;
share_delete = oflag & O_SHARE_DELETE ? FILE_SHARE_DELETE : 0;
oflag &= ~O_SHARE_DELETE;
if ((oflag & O_TEXT) || !(oflag & O_BINARY)) {
fd = _wopen(file, oflag, pmode);
if (fd == -1) {
switch (errno) {
case EACCES:
check_if_wdir(file);
break;
case EINVAL:
errno = map_errno(GetLastError());
break;
}
}
return fd;
}
sec.nLength = sizeof(sec);
sec.lpSecurityDescriptor = NULL;
if (oflag & O_NOINHERIT) {
sec.bInheritHandle = FALSE;
flags |= FNOINHERIT;
}
else {
sec.bInheritHandle = TRUE;
}
oflag &= ~O_NOINHERIT;
/* always open with binary mode */
oflag &= ~(O_BINARY | O_TEXT);
switch (oflag & (O_RDWR | O_RDONLY | O_WRONLY)) {
case O_RDWR:
access = GENERIC_READ | GENERIC_WRITE;
break;
case O_RDONLY:
access = GENERIC_READ;
break;
case O_WRONLY:
access = GENERIC_WRITE;
break;
default:
errno = EINVAL;
return -1;
}
oflag &= ~(O_RDWR | O_RDONLY | O_WRONLY);
switch (oflag & (O_CREAT | O_EXCL | O_TRUNC)) {
case O_CREAT:
create = OPEN_ALWAYS;
break;
case 0:
case O_EXCL:
create = OPEN_EXISTING;
break;
case O_CREAT | O_EXCL:
case O_CREAT | O_EXCL | O_TRUNC:
create = CREATE_NEW;
break;
case O_TRUNC:
case O_TRUNC | O_EXCL:
create = TRUNCATE_EXISTING;
break;
case O_CREAT | O_TRUNC:
create = CREATE_ALWAYS;
break;
default:
errno = EINVAL;
return -1;
}
if (oflag & O_CREAT) {
/* TODO: we need to check umask here, but it's not exported... */
if (!(pmode & S_IWRITE))
attr = FILE_ATTRIBUTE_READONLY;
}
oflag &= ~(O_CREAT | O_EXCL | O_TRUNC);
if (oflag & O_TEMPORARY) {
attr |= FILE_FLAG_DELETE_ON_CLOSE;
access |= DELETE;
}
oflag &= ~O_TEMPORARY;
if (oflag & _O_SHORT_LIVED)
attr |= FILE_ATTRIBUTE_TEMPORARY;
oflag &= ~_O_SHORT_LIVED;
switch (oflag & (O_SEQUENTIAL | O_RANDOM)) {
case 0:
break;
case O_SEQUENTIAL:
attr |= FILE_FLAG_SEQUENTIAL_SCAN;
break;
case O_RANDOM:
attr |= FILE_FLAG_RANDOM_ACCESS;
break;
default:
errno = EINVAL;
return -1;
}
oflag &= ~(O_SEQUENTIAL | O_RANDOM);
if (oflag & ~O_APPEND) {
errno = EINVAL;
return -1;
}
/* allocate a C Runtime file handle */
RUBY_CRITICAL {
h = CreateFile("NUL", 0, 0, NULL, OPEN_ALWAYS, 0, NULL);
fd = _open_osfhandle((intptr_t)h, 0);
CloseHandle(h);
}
if (fd == -1) {
errno = EMFILE;
return -1;
}
RUBY_CRITICAL {
rb_acrt_lowio_lock_fh(fd);
_set_osfhnd(fd, (intptr_t)INVALID_HANDLE_VALUE);
_set_osflags(fd, 0);
h = CreateFileW(file, access, FILE_SHARE_READ | FILE_SHARE_WRITE | share_delete, &sec, create, attr, NULL);
if (h == INVALID_HANDLE_VALUE) {
DWORD e = GetLastError();
if (e != ERROR_ACCESS_DENIED || !check_if_wdir(file))
errno = map_errno(e);
rb_acrt_lowio_unlock_fh(fd);
fd = -1;
goto quit;
}
switch (GetFileType(h)) {
case FILE_TYPE_CHAR:
flags |= FDEV;
break;
case FILE_TYPE_PIPE:
flags |= FPIPE;
break;
case FILE_TYPE_UNKNOWN:
errno = map_errno(GetLastError());
CloseHandle(h);
rb_acrt_lowio_unlock_fh(fd);
fd = -1;
goto quit;
}
if (!(flags & (FDEV | FPIPE)) && (oflag & O_APPEND))
flags |= FAPPEND;
_set_osfhnd(fd, (intptr_t)h);
_set_osflags(fd, flags | FOPEN);
rb_acrt_lowio_unlock_fh(fd);
quit:
;
}
return fd;
}
/* License: Ruby's */
int
rb_w32_fclose(FILE *fp)
{
int fd = fileno(fp);
SOCKET sock = TO_SOCKET(fd);
int save_errno = errno;
if (fflush(fp)) return -1;
if (!is_socket(sock)) {
UnlockFile((HANDLE)sock, 0, 0, LK_LEN, LK_LEN);
return fclose(fp);
}
_set_osfhnd(fd, (SOCKET)INVALID_HANDLE_VALUE);
fclose(fp);
errno = save_errno;
if (closesocket(sock) == SOCKET_ERROR) {
errno = map_errno(WSAGetLastError());
return -1;
}
return 0;
}
/* License: Ruby's */
int
rb_w32_pipe(int fds[2])
{
static long serial = 0;
static const char prefix[] = "\\\\.\\pipe\\ruby";
enum {
width_of_prefix = (int)sizeof(prefix) - 1,
width_of_pid = (int)sizeof(rb_pid_t) * 2,
width_of_serial = (int)sizeof(serial) * 2,
width_of_ids = width_of_pid + 1 + width_of_serial + 1
};
char name[sizeof(prefix) + width_of_ids];
SECURITY_ATTRIBUTES sec;
HANDLE hRead, hWrite, h;
int fdRead, fdWrite;
int ret;
memcpy(name, prefix, width_of_prefix);
snprintf(name + width_of_prefix, width_of_ids, "%.*"PRI_PIDT_PREFIX"x-%.*lx",
width_of_pid, rb_w32_getpid(), width_of_serial, InterlockedIncrement(&serial)-1);
sec.nLength = sizeof(sec);
sec.lpSecurityDescriptor = NULL;
sec.bInheritHandle = FALSE;
RUBY_CRITICAL {
hRead = CreateNamedPipe(name, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
0, 2, 65536, 65536, 0, &sec);
}
if (hRead == INVALID_HANDLE_VALUE) {
DWORD err = GetLastError();
if (err == ERROR_PIPE_BUSY)
errno = EMFILE;
else
errno = map_errno(GetLastError());
return -1;
}
RUBY_CRITICAL {
hWrite = CreateFile(name, GENERIC_READ | GENERIC_WRITE, 0, &sec,
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
}
if (hWrite == INVALID_HANDLE_VALUE) {
errno = map_errno(GetLastError());
CloseHandle(hRead);
return -1;
}
RUBY_CRITICAL do {
ret = 0;
h = CreateFile("NUL", 0, 0, NULL, OPEN_ALWAYS, 0, NULL);
fdRead = _open_osfhandle((intptr_t)h, 0);
CloseHandle(h);
if (fdRead == -1) {
errno = EMFILE;
CloseHandle(hWrite);
CloseHandle(hRead);
ret = -1;
break;
}
rb_acrt_lowio_lock_fh(fdRead);
_set_osfhnd(fdRead, (intptr_t)hRead);
_set_osflags(fdRead, FOPEN | FPIPE | FNOINHERIT);
rb_acrt_lowio_unlock_fh(fdRead);
} while (0);
if (ret)
return ret;
RUBY_CRITICAL do {
h = CreateFile("NUL", 0, 0, NULL, OPEN_ALWAYS, 0, NULL);
fdWrite = _open_osfhandle((intptr_t)h, 0);
CloseHandle(h);
if (fdWrite == -1) {
errno = EMFILE;
CloseHandle(hWrite);
ret = -1;
break;
}
rb_acrt_lowio_lock_fh(fdWrite);
_set_osfhnd(fdWrite, (intptr_t)hWrite);
_set_osflags(fdWrite, FOPEN | FPIPE | FNOINHERIT);
rb_acrt_lowio_unlock_fh(fdWrite);
} while (0);
if (ret) {
rb_w32_close(fdRead);
return ret;
}
fds[0] = fdRead;
fds[1] = fdWrite;
return 0;
}
/* License: Ruby's */
static int
console_emulator_p(void)
{
#ifdef _WIN32_WCE
return FALSE;
#else
const void *const func = WriteConsoleW;
HMODULE k;
MEMORY_BASIC_INFORMATION m;
memset(&m, 0, sizeof(m));
if (!VirtualQuery(func, &m, sizeof(m))) {
return FALSE;
}
k = GetModuleHandle("kernel32.dll");
if (!k) return FALSE;
return (HMODULE)m.AllocationBase != k;
#endif
}
/* License: Ruby's */
static struct constat *
constat_handle(HANDLE h)
{
st_data_t data;
struct constat *p = NULL;
thread_exclusive(conlist) {
if (!conlist) {
if (console_emulator_p()) {
conlist = conlist_disabled;
continue;
}
conlist = st_init_numtable();
install_vm_exit_handler();
}
else if (conlist == conlist_disabled) {
continue;
}
if (st_lookup(conlist, (st_data_t)h, &data)) {
p = (struct constat *)data;
}
else {
CONSOLE_SCREEN_BUFFER_INFO csbi;
p = ALLOC(struct constat);
p->vt100.state = constat_init;
p->vt100.attr = FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED;
p->vt100.reverse = 0;
p->vt100.saved.X = p->vt100.saved.Y = 0;
if (GetConsoleScreenBufferInfo(h, &csbi)) {
p->vt100.attr = csbi.wAttributes;
}
st_insert(conlist, (st_data_t)h, (st_data_t)p);
}
}
return p;
}
/* License: Ruby's */
static void
constat_reset(HANDLE h)
{
st_data_t data;
struct constat *p;
thread_exclusive(conlist) {
if (!conlist || conlist == conlist_disabled) continue;
if (!st_lookup(conlist, (st_data_t)h, &data)) continue;
p = (struct constat *)data;
p->vt100.state = constat_init;
}
}
#define FOREGROUND_MASK (FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY)
#define BACKGROUND_MASK (BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY)
#define constat_attr_color_reverse(attr) \
((attr) & ~(FOREGROUND_MASK | BACKGROUND_MASK)) | \
(((attr) & FOREGROUND_MASK) << 4) | \
(((attr) & BACKGROUND_MASK) >> 4)
/* License: Ruby's */
static WORD
constat_attr(int count, const int *seq, WORD attr, WORD default_attr, int *reverse)
{
int rev = *reverse;
WORD bold;
if (!count) return attr;
if (rev) attr = constat_attr_color_reverse(attr);
bold = attr & FOREGROUND_INTENSITY;
attr &= ~(FOREGROUND_INTENSITY | BACKGROUND_INTENSITY);
while (count-- > 0) {
switch (*seq++) {
case 0:
attr = default_attr;
rev = 0;
bold = 0;
break;
case 1:
bold = FOREGROUND_INTENSITY;
break;
case 4:
#ifndef COMMON_LVB_UNDERSCORE
#define COMMON_LVB_UNDERSCORE 0x8000
#endif
attr |= COMMON_LVB_UNDERSCORE;
break;
case 7:
rev = 1;
break;
case 30:
attr &= ~(FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED);
break;
case 17:
case 31:
attr = (attr & ~(FOREGROUND_BLUE | FOREGROUND_GREEN)) | FOREGROUND_RED;
break;
case 18:
case 32:
attr = (attr & ~(FOREGROUND_BLUE | FOREGROUND_RED)) | FOREGROUND_GREEN;
break;
case 19:
case 33:
attr = (attr & ~FOREGROUND_BLUE) | FOREGROUND_GREEN | FOREGROUND_RED;
break;
case 20:
case 34:
attr = (attr & ~(FOREGROUND_GREEN | FOREGROUND_RED)) | FOREGROUND_BLUE;
break;
case 21:
case 35:
attr = (attr & ~FOREGROUND_GREEN) | FOREGROUND_BLUE | FOREGROUND_RED;
break;
case 22:
case 36:
attr = (attr & ~FOREGROUND_RED) | FOREGROUND_BLUE | FOREGROUND_GREEN;
break;
case 23:
case 37:
attr |= FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED;
break;
case 40:
attr &= ~(BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);
break;
case 41:
attr = (attr & ~(BACKGROUND_BLUE | BACKGROUND_GREEN)) | BACKGROUND_RED;
break;
case 42:
attr = (attr & ~(BACKGROUND_BLUE | BACKGROUND_RED)) | BACKGROUND_GREEN;
break;
case 43:
attr = (attr & ~BACKGROUND_BLUE) | BACKGROUND_GREEN | BACKGROUND_RED;
break;
case 44:
attr = (attr & ~(BACKGROUND_GREEN | BACKGROUND_RED)) | BACKGROUND_BLUE;
break;
case 45:
attr = (attr & ~BACKGROUND_GREEN) | BACKGROUND_BLUE | BACKGROUND_RED;
break;
case 46:
attr = (attr & ~BACKGROUND_RED) | BACKGROUND_BLUE | BACKGROUND_GREEN;
break;
case 47:
attr |= BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED;
break;
}
}
attr |= bold;
if (rev) attr = constat_attr_color_reverse(attr);
*reverse = rev;
return attr;
}
/* License: Ruby's */
static void
constat_clear(HANDLE handle, WORD attr, DWORD len, COORD pos)
{
DWORD written;
FillConsoleOutputAttribute(handle, attr, len, pos, &written);
FillConsoleOutputCharacterW(handle, L' ', len, pos, &written);
}
/* License: Ruby's */
static void
constat_apply(HANDLE handle, struct constat *s, WCHAR w)
{
CONSOLE_SCREEN_BUFFER_INFO csbi;
const int *seq = s->vt100.seq;
int count = s->vt100.state;
int arg0, arg1 = 1;
COORD pos;
if (!GetConsoleScreenBufferInfo(handle, &csbi)) return;
arg0 = (count > 0 && seq[0] > 0);
if (arg0) arg1 = seq[0];
switch (w) {
case L'm':
SetConsoleTextAttribute(handle, constat_attr(count, seq, csbi.wAttributes, s->vt100.attr, &s->vt100.reverse));
break;
case L'F':
csbi.dwCursorPosition.X = 0;
case L'A':
csbi.dwCursorPosition.Y -= arg1;
if (csbi.dwCursorPosition.Y < csbi.srWindow.Top)
csbi.dwCursorPosition.Y = csbi.srWindow.Top;
SetConsoleCursorPosition(handle, csbi.dwCursorPosition);
break;
case L'E':
csbi.dwCursorPosition.X = 0;
case L'B':
case L'e':
csbi.dwCursorPosition.Y += arg1;
if (csbi.dwCursorPosition.Y > csbi.srWindow.Bottom)
csbi.dwCursorPosition.Y = csbi.srWindow.Bottom;
SetConsoleCursorPosition(handle, csbi.dwCursorPosition);
break;
case L'C':
csbi.dwCursorPosition.X += arg1;
if (csbi.dwCursorPosition.X >= csbi.srWindow.Right)
csbi.dwCursorPosition.X = csbi.srWindow.Right;
SetConsoleCursorPosition(handle, csbi.dwCursorPosition);
break;
case L'D':
csbi.dwCursorPosition.X -= arg1;
if (csbi.dwCursorPosition.X < csbi.srWindow.Left)
csbi.dwCursorPosition.X = csbi.srWindow.Left;
SetConsoleCursorPosition(handle, csbi.dwCursorPosition);
break;
case L'G':
case L'`':
arg1 += csbi.srWindow.Left;
if (arg1 > csbi.srWindow.Right)
arg1 = csbi.srWindow.Right;
csbi.dwCursorPosition.X = arg1;
SetConsoleCursorPosition(handle, csbi.dwCursorPosition);
break;
case L'd':
arg1 += csbi.srWindow.Top;
if (arg1 > csbi.srWindow.Bottom)
arg1 = csbi.srWindow.Bottom;
csbi.dwCursorPosition.Y = arg1;
SetConsoleCursorPosition(handle, csbi.dwCursorPosition);
break;
case L'H':
case L'f':
pos.Y = arg1 + csbi.srWindow.Top - 1;
if (pos.Y > csbi.srWindow.Bottom) pos.Y = csbi.srWindow.Bottom;
if (count < 2 || (arg1 = seq[1]) <= 0) arg1 = 1;
pos.X = arg1 + csbi.srWindow.Left - 1;
if (pos.X > csbi.srWindow.Right) pos.X = csbi.srWindow.Right;
SetConsoleCursorPosition(handle, pos);
break;
case L'J':
switch (arg0 ? arg1 : 0) {
case 0: /* erase after cursor */
constat_clear(handle, csbi.wAttributes,
(csbi.dwSize.X * (csbi.srWindow.Bottom - csbi.dwCursorPosition.Y + 1)
- csbi.dwCursorPosition.X),
csbi.dwCursorPosition);
break;
case 1: /* erase before *and* cursor */
pos.X = 0;
pos.Y = csbi.srWindow.Top;
constat_clear(handle, csbi.wAttributes,
(csbi.dwSize.X * (csbi.dwCursorPosition.Y - csbi.srWindow.Top)
+ csbi.dwCursorPosition.X + 1),
pos);
break;
case 2: /* erase entire screen */
pos.X = 0;
pos.Y = csbi.srWindow.Top;
constat_clear(handle, csbi.wAttributes,
(csbi.dwSize.X * (csbi.srWindow.Bottom - csbi.srWindow.Top + 1)),
pos);
break;
case 3: /* erase entire screen */
pos.X = 0;
pos.Y = 0;
constat_clear(handle, csbi.wAttributes,
(csbi.dwSize.X * csbi.dwSize.Y),
pos);
break;
}
break;
case L'K':
switch (arg0 ? arg1 : 0) {
case 0: /* erase after cursor */
constat_clear(handle, csbi.wAttributes,
(csbi.dwSize.X - csbi.dwCursorPosition.X),
csbi.dwCursorPosition);
break;
case 1: /* erase before *and* cursor */
pos.X = 0;
pos.Y = csbi.dwCursorPosition.Y;
constat_clear(handle, csbi.wAttributes,
csbi.dwCursorPosition.X + 1, pos);
break;
case 2: /* erase entire line */
pos.X = 0;
pos.Y = csbi.dwCursorPosition.Y;
constat_clear(handle, csbi.wAttributes,
csbi.dwSize.X, pos);
break;
}
break;
case L's':
s->vt100.saved = csbi.dwCursorPosition;
break;
case L'u':
SetConsoleCursorPosition(handle, s->vt100.saved);
break;
case L'h':
if (count >= 2 && seq[0] == -1 && seq[1] == 25) {
CONSOLE_CURSOR_INFO cci;
GetConsoleCursorInfo(handle, &cci);
cci.bVisible = TRUE;
SetConsoleCursorInfo(handle, &cci);
}
break;
case L'l':
if (count >= 2 && seq[0] == -1 && seq[1] == 25) {
CONSOLE_CURSOR_INFO cci;
GetConsoleCursorInfo(handle, &cci);
cci.bVisible = FALSE;
SetConsoleCursorInfo(handle, &cci);
}
break;
}
}
/* get rid of console writing bug; assume WriteConsole and WriteFile
* on a console share the same limit. */
static const long MAXSIZE_CONSOLE_WRITING = 31366;
/* License: Ruby's */
static long
constat_parse(HANDLE h, struct constat *s, const WCHAR **ptrp, long *lenp)
{
const WCHAR *ptr = *ptrp;
long rest, len = *lenp;
while (len-- > 0) {
WCHAR wc = *ptr++;
if (wc == 0x1b) {
rest = *lenp - len - 1;
if (s->vt100.state == constat_esc) {
rest++; /* reuse this ESC */
}
s->vt100.state = constat_init;
if (len > 0 && *ptr != L'[') continue;
s->vt100.state = constat_esc;
}
else if (s->vt100.state == constat_esc) {
if (wc != L'[') {
/* TODO: supply dropped ESC at beginning */
s->vt100.state = constat_init;
continue;
}
rest = *lenp - len - 1;
if (rest > 0) --rest;
s->vt100.state = constat_seq;
s->vt100.seq[0] = 0;
}
else if (s->vt100.state >= constat_seq) {
if (wc >= L'0' && wc <= L'9') {
if (s->vt100.state < (int)numberof(s->vt100.seq)) {
int *seq = &s->vt100.seq[s->vt100.state];
*seq = (*seq * 10) + (wc - L'0');
}
}
else if (s->vt100.state == constat_seq && s->vt100.seq[0] == 0 && wc == L'?') {
s->vt100.seq[s->vt100.state++] = -1;
}
else {
do {
if (++s->vt100.state < (int)numberof(s->vt100.seq)) {
s->vt100.seq[s->vt100.state] = 0;
}
else {
s->vt100.state = (int)numberof(s->vt100.seq);
}
} while (0);
if (wc != L';') {
constat_apply(h, s, wc);
s->vt100.state = constat_init;
}
}
rest = 0;
}
else if ((rest = *lenp - len) < MAXSIZE_CONSOLE_WRITING) {
continue;
}
*ptrp = ptr;
*lenp = len;
return rest;
}
len = *lenp;
*ptrp = ptr;
*lenp = 0;
return len;
}
/* License: Ruby's */
int
rb_w32_close(int fd)
{
SOCKET sock = TO_SOCKET(fd);
int save_errno = errno;
if (!is_socket(sock)) {
UnlockFile((HANDLE)sock, 0, 0, LK_LEN, LK_LEN);
constat_delete((HANDLE)sock);
return _close(fd);
}
_set_osfhnd(fd, (SOCKET)INVALID_HANDLE_VALUE);
socklist_delete(&sock, NULL);
_close(fd);
errno = save_errno;
if (closesocket(sock) == SOCKET_ERROR) {
errno = map_errno(WSAGetLastError());
return -1;
}
return 0;
}
#ifndef INVALID_SET_FILE_POINTER
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
static int
setup_overlapped(OVERLAPPED *ol, int fd, int iswrite, rb_off_t *_offset)
{
memset(ol, 0, sizeof(*ol));
// On mode:a, it can write only FILE_END.
// On mode:a+, though it can write only FILE_END,
// it can read from everywhere.
DWORD seek_method = ((_osfile(fd) & FAPPEND) && iswrite) ? FILE_END : FILE_CURRENT;
if (_offset) {
// Explicit offset was provided (pread/pwrite) - use it:
uint64_t offset = *_offset;
ol->Offset = (uint32_t)(offset & 0xFFFFFFFFLL);
ol->OffsetHigh = (uint32_t)((offset & 0xFFFFFFFF00000000LL) >> 32);
// Update _offset with the current offset:
LARGE_INTEGER seek_offset = {0}, current_offset = {0};
if (!SetFilePointerEx((HANDLE)_osfhnd(fd), seek_offset, &current_offset, seek_method)) {
DWORD last_error = GetLastError();
if (last_error != NO_ERROR) {
errno = map_errno(last_error);
return -1;
}
}
// As we need to restore the current offset later, we save it here:
*_offset = current_offset.QuadPart;
}
else if (!(_osfile(fd) & (FDEV | FPIPE))) {
LONG high = 0;
DWORD low = SetFilePointer((HANDLE)_osfhnd(fd), 0, &high, seek_method);
if (low == INVALID_SET_FILE_POINTER) {
DWORD err = GetLastError();
if (err != NO_ERROR) {
errno = map_errno(err);
return -1;
}
}
ol->Offset = low;
ol->OffsetHigh = high;
}
ol->hEvent = CreateEvent(NULL, TRUE, TRUE, NULL);
if (!ol->hEvent) {
errno = map_errno(GetLastError());
return -1;
}
return 0;
}
static void
finish_overlapped(OVERLAPPED *ol, int fd, DWORD size, rb_off_t *_offset)
{
CloseHandle(ol->hEvent);
if (_offset) {
// If we were doing a `pread`/`pwrite`, we need to restore the current that was saved in setup_overlapped:
DWORD seek_method = (_osfile(fd) & FAPPEND) ? FILE_END : FILE_BEGIN;
LARGE_INTEGER seek_offset = {0};
if (seek_method == FILE_BEGIN) {
seek_offset.QuadPart = *_offset;
}
SetFilePointerEx((HANDLE)_osfhnd(fd), seek_offset, NULL, seek_method);
}
else if (!(_osfile(fd) & (FDEV | FPIPE))) {
LONG high = ol->OffsetHigh;
DWORD low = ol->Offset + size;
if (low < ol->Offset)
++high;
SetFilePointer((HANDLE)_osfhnd(fd), low, &high, FILE_BEGIN);
}
}
#undef read
/* License: Ruby's */
static ssize_t
rb_w32_read_internal(int fd, void *buf, size_t size, rb_off_t *offset)
{
SOCKET sock = TO_SOCKET(fd);
DWORD read;
DWORD wait;
DWORD err;
size_t len;
size_t ret;
OVERLAPPED ol;
BOOL isconsole;
BOOL islineinput = FALSE;
int start = 0;
if (is_socket(sock))
return rb_w32_recv(fd, buf, size, 0);
// validate fd by using _get_osfhandle() because we cannot access _nhandle
if (_get_osfhandle(fd) == -1) {
return -1;
}
if (!offset && _osfile(fd) & FTEXT) {
return _read(fd, buf, size);
}
rb_acrt_lowio_lock_fh(fd);
if (!size || _osfile(fd) & FEOFLAG) {
_set_osflags(fd, _osfile(fd) & ~FEOFLAG);
rb_acrt_lowio_unlock_fh(fd);
return 0;
}
ret = 0;
isconsole = is_console(_osfhnd(fd)) && (osver.dwMajorVersion < 6 || (osver.dwMajorVersion == 6 && osver.dwMinorVersion < 2));
if (isconsole) {
DWORD mode;
GetConsoleMode((HANDLE)_osfhnd(fd),&mode);
islineinput = (mode & ENABLE_LINE_INPUT) != 0;
}
retry:
/* get rid of console reading bug */
if (isconsole) {
constat_reset((HANDLE)_osfhnd(fd));
if (start)
len = 1;
else {
len = 0;
start = 1;
}
}
else
len = size;
size -= len;
if (setup_overlapped(&ol, fd, FALSE, offset)) {
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
if (!ReadFile((HANDLE)_osfhnd(fd), buf, len, &read, &ol)) {
err = GetLastError();
if (err == ERROR_NO_DATA && (_osfile(fd) & FPIPE)) {
DWORD state;
if (GetNamedPipeHandleState((HANDLE)_osfhnd(fd), &state, NULL, NULL, NULL, NULL, 0) && (state & PIPE_NOWAIT)) {
errno = EWOULDBLOCK;
}
else {
errno = map_errno(err);
}
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
else if (err != ERROR_IO_PENDING) {
CloseHandle(ol.hEvent);
if (err == ERROR_ACCESS_DENIED)
errno = EBADF;
else if (err == ERROR_BROKEN_PIPE || err == ERROR_HANDLE_EOF) {
rb_acrt_lowio_unlock_fh(fd);
return 0;
}
else
errno = map_errno(err);
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
wait = rb_w32_wait_events_blocking(&ol.hEvent, 1, INFINITE);
if (wait != WAIT_OBJECT_0) {
if (wait == WAIT_OBJECT_0 + 1)
errno = EINTR;
else
errno = map_errno(GetLastError());
CloseHandle(ol.hEvent);
CancelIo((HANDLE)_osfhnd(fd));
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
if (!GetOverlappedResult((HANDLE)_osfhnd(fd), &ol, &read, TRUE) &&
(err = GetLastError()) != ERROR_HANDLE_EOF) {
int ret = 0;
if (err != ERROR_BROKEN_PIPE) {
errno = map_errno(err);
ret = -1;
}
CloseHandle(ol.hEvent);
CancelIo((HANDLE)_osfhnd(fd));
rb_acrt_lowio_unlock_fh(fd);
return ret;
}
}
else {
err = GetLastError();
errno = map_errno(err);
}
finish_overlapped(&ol, fd, read, offset);
ret += read;
if (read >= len) {
buf = (char *)buf + read;
if (err != ERROR_OPERATION_ABORTED &&
!(isconsole && len == 1 && (!islineinput || *((char *)buf - 1) == '\n')) && size > 0)
goto retry;
}
if (read == 0)
_set_osflags(fd, _osfile(fd) | FEOFLAG);
rb_acrt_lowio_unlock_fh(fd);
return ret;
}
#undef write
/* License: Ruby's */
static ssize_t
rb_w32_write_internal(int fd, const void *buf, size_t size, rb_off_t *offset)
{
SOCKET sock = TO_SOCKET(fd);
DWORD written;
DWORD wait;
DWORD err;
size_t len;
size_t ret;
OVERLAPPED ol;
if (is_socket(sock))
return rb_w32_send(fd, buf, size, 0);
// validate fd by using _get_osfhandle() because we cannot access _nhandle
if (_get_osfhandle(fd) == -1) {
return -1;
}
// If an offset is given, we can't use `_write`.
if (!offset && (_osfile(fd) & FTEXT) &&
(!(_osfile(fd) & FPIPE) || fd == fileno(stdout) || fd == fileno(stderr))) {
ssize_t w = _write(fd, buf, size);
if (w == (ssize_t)-1 && errno == EINVAL) {
errno = map_errno(GetLastError());
}
return w;
}
rb_acrt_lowio_lock_fh(fd);
if (!size || _osfile(fd) & FEOFLAG) {
rb_acrt_lowio_unlock_fh(fd);
return 0;
}
ret = 0;
retry:
len = (_osfile(fd) & FDEV) ? min(MAXSIZE_CONSOLE_WRITING, size) : size;
size -= len;
retry2:
// Provide the requested offset.
if (setup_overlapped(&ol, fd, TRUE, offset)) {
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
if (!WriteFile((HANDLE)_osfhnd(fd), buf, len, &written, &ol)) {
err = GetLastError();
if (err != ERROR_IO_PENDING) {
CloseHandle(ol.hEvent);
if (err == ERROR_ACCESS_DENIED)
errno = EBADF;
else
errno = map_errno(err);
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
wait = rb_w32_wait_events_blocking(&ol.hEvent, 1, INFINITE);
if (wait != WAIT_OBJECT_0) {
if (wait == WAIT_OBJECT_0 + 1)
errno = EINTR;
else
errno = map_errno(GetLastError());
CloseHandle(ol.hEvent);
CancelIo((HANDLE)_osfhnd(fd));
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
if (!GetOverlappedResult((HANDLE)_osfhnd(fd), &ol, &written, TRUE)) {
errno = map_errno(GetLastError());
CloseHandle(ol.hEvent);
CancelIo((HANDLE)_osfhnd(fd));
rb_acrt_lowio_unlock_fh(fd);
return -1;
}
}
finish_overlapped(&ol, fd, written, offset);
ret += written;
if (written == len) {
buf = (const char *)buf + len;
if (size > 0)
goto retry;
}
if (ret == 0) {
size_t newlen = len / 2;
if (newlen > 0) {
size += len - newlen;
len = newlen;
goto retry2;
}
ret = -1;
errno = EWOULDBLOCK;
}
rb_acrt_lowio_unlock_fh(fd);
return ret;
}
ssize_t
rb_w32_read(int fd, void *buf, size_t size)
{
return rb_w32_read_internal(fd, buf, size, NULL);
}
ssize_t
rb_w32_write(int fd, const void *buf, size_t size)
{
return rb_w32_write_internal(fd, buf, size, NULL);
}
ssize_t
rb_w32_pread(int descriptor, void *base, size_t size, rb_off_t offset)
{
return rb_w32_read_internal(descriptor, base, size, &offset);
}
ssize_t
rb_w32_pwrite(int descriptor, const void *base, size_t size, rb_off_t offset)
{
return rb_w32_write_internal(descriptor, base, size, &offset);
}
/* License: Ruby's */
long
rb_w32_write_console(uintptr_t strarg, int fd)
{
HANDLE handle;
DWORD dwMode, reslen;
VALUE str = strarg;
int encindex;
WCHAR *wbuffer = 0;
const WCHAR *ptr, *next;
struct constat *s;
long len;
handle = (HANDLE)_osfhnd(fd);
if (!GetConsoleMode(handle, &dwMode))
return -1L;
s = constat_handle(handle);
if (!s) return -1L;
encindex = ENCODING_GET(str);
switch (encindex) {
default:
if (!rb_econv_has_convpath_p(rb_enc_name(rb_enc_from_index(encindex)), "UTF-8"))
return -1L;
str = rb_str_conv_enc_opts(str, NULL, rb_enc_from_index(ENCINDEX_UTF_8),
ECONV_INVALID_REPLACE|ECONV_UNDEF_REPLACE, Qnil);
/* fall through */
case ENCINDEX_US_ASCII:
case ENCINDEX_ASCII_8BIT:
/* assume UTF-8 */
case ENCINDEX_UTF_8:
ptr = wbuffer = mbstr_to_wstr(CP_UTF8, RSTRING_PTR(str), RSTRING_LEN(str), &len);
if (!ptr) return -1L;
break;
case ENCINDEX_UTF_16LE:
ptr = (const WCHAR *)RSTRING_PTR(str);
len = RSTRING_LEN(str) / sizeof(WCHAR);
break;
}
reslen = 0;
if (dwMode & ENABLE_VIRTUAL_TERMINAL_PROCESSING) {
if (!WriteConsoleW(handle, ptr, len, &reslen, NULL))
reslen = (DWORD)-1L;
}
else {
while (len > 0) {
long curlen = constat_parse(handle, s, (next = ptr, &next), &len);
reslen += next - ptr;
if (curlen > 0) {
DWORD written;
if (!WriteConsoleW(handle, ptr, curlen, &written, NULL)) {
reslen = (DWORD)-1L;
break;
}
}
ptr = next;
}
}
RB_GC_GUARD(str);
free(wbuffer);
return (long)reslen;
}
#if RUBY_MSVCRT_VERSION < 80 && !defined(HAVE__GMTIME64_S)
/* License: Ruby's */
static int
unixtime_to_filetime(time_t time, FILETIME *ft)
{
ULARGE_INTEGER tmp;
tmp.QuadPart = ((LONG_LONG)time + (LONG_LONG)((1970-1601)*365.2425) * 24 * 60 * 60) * 10 * 1000 * 1000;
ft->dwLowDateTime = tmp.LowPart;
ft->dwHighDateTime = tmp.HighPart;
return 0;
}
#endif
/* License: Ruby's */
static int
timespec_to_filetime(const struct timespec *ts, FILETIME *ft)
{
ULARGE_INTEGER tmp;
tmp.QuadPart = ((LONG_LONG)ts->tv_sec + (LONG_LONG)((1970-1601)*365.2425) * 24 * 60 * 60) * 10 * 1000 * 1000;
tmp.QuadPart += ts->tv_nsec / 100;
ft->dwLowDateTime = tmp.LowPart;
ft->dwHighDateTime = tmp.HighPart;
return 0;
}
/* License: Ruby's */
static int
wutimensat(int dirfd, const WCHAR *path, const struct timespec *times, int flags)
{
HANDLE hFile;
FILETIME atime, mtime;
struct stati128 stat;
int ret = 0;
/* TODO: When path is absolute, dirfd should be ignored. */
if (dirfd != AT_FDCWD) {
errno = ENOSYS;
return -1;
}
if (flags != 0) {
errno = EINVAL; /* AT_SYMLINK_NOFOLLOW isn't supported. */
return -1;
}
if (wstati128(path, &stat, FALSE)) {
return -1;
}
if (times) {
if (timespec_to_filetime(&times[0], &atime)) {
return -1;
}
if (timespec_to_filetime(&times[1], &mtime)) {
return -1;
}
}
else {
get_systemtime(&atime);
mtime = atime;
}
RUBY_CRITICAL {
const DWORD attr = GetFileAttributesW(path);
if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY))
SetFileAttributesW(path, attr & ~FILE_ATTRIBUTE_READONLY);
hFile = open_special(path, GENERIC_WRITE, 0);
if (hFile == INVALID_HANDLE_VALUE) {
errno = map_errno(GetLastError());
ret = -1;
}
else {
if (!SetFileTime(hFile, NULL, &atime, &mtime)) {
errno = map_errno(GetLastError());
ret = -1;
}
CloseHandle(hFile);
}
if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY))
SetFileAttributesW(path, attr);
}
return ret;
}
/* License: Ruby's */
static int
w32_utimensat(int dirfd, const char *path, const struct timespec *times, int flags, UINT cp)
{
WCHAR *wpath = mbstr_to_wstr(cp, path, -1, NULL);
int ret = -1;
if (wpath) {
ret = wutimensat(dirfd, wpath, times, flags);
free(wpath);
}
return ret;
}
/* License: Ruby's */
int
rb_w32_uutime(const char *path, const struct utimbuf *times)
{
struct timespec ts[2];
ts[0].tv_sec = times->actime;
ts[0].tv_nsec = 0;
ts[1].tv_sec = times->modtime;
ts[1].tv_nsec = 0;
return w32_utimensat(AT_FDCWD, path, ts, 0, CP_UTF8);
}
/* License: Ruby's */
int
rb_w32_utime(const char *path, const struct utimbuf *times)
{
struct timespec ts[2];
ts[0].tv_sec = times->actime;
ts[0].tv_nsec = 0;
ts[1].tv_sec = times->modtime;
ts[1].tv_nsec = 0;
return w32_utimensat(AT_FDCWD, path, ts, 0, filecp());
}
/* License: Ruby's */
int
rb_w32_uutimes(const char *path, const struct timeval *times)
{
struct timespec ts[2];
ts[0].tv_sec = times[0].tv_sec;
ts[0].tv_nsec = times[0].tv_usec * 1000;
ts[1].tv_sec = times[1].tv_sec;
ts[1].tv_nsec = times[1].tv_usec * 1000;
return w32_utimensat(AT_FDCWD, path, ts, 0, CP_UTF8);
}
/* License: Ruby's */
int
rb_w32_utimes(const char *path, const struct timeval *times)
{
struct timespec ts[2];
ts[0].tv_sec = times[0].tv_sec;
ts[0].tv_nsec = times[0].tv_usec * 1000;
ts[1].tv_sec = times[1].tv_sec;
ts[1].tv_nsec = times[1].tv_usec * 1000;
return w32_utimensat(AT_FDCWD, path, ts, 0, filecp());
}
/* License: Ruby's */
int
rb_w32_uutimensat(int dirfd, const char *path, const struct timespec *times, int flags)
{
return w32_utimensat(dirfd, path, times, flags, CP_UTF8);
}
/* License: Ruby's */
int
rb_w32_utimensat(int dirfd, const char *path, const struct timespec *times, int flags)
{
return w32_utimensat(dirfd, path, times, flags, filecp());
}
/* License: Ruby's */
int
rb_w32_uchdir(const char *path)
{
WCHAR *wpath;
int ret;
if (!(wpath = utf8_to_wstr(path, NULL)))
return -1;
ret = _wchdir(wpath);
free(wpath);
return ret;
}
/* License: Ruby's */
static int
wmkdir(const WCHAR *wpath, int mode)
{
int ret = -1;
RUBY_CRITICAL do {
if (CreateDirectoryW(wpath, NULL) == FALSE) {
errno = map_errno(GetLastError());
break;
}
if (_wchmod(wpath, mode) == -1) {
RemoveDirectoryW(wpath);
break;
}
ret = 0;
} while (0);
return ret;
}
/* License: Ruby's */
int
rb_w32_umkdir(const char *path, int mode)
{
WCHAR *wpath;
int ret;
if (!(wpath = utf8_to_wstr(path, NULL)))
return -1;
ret = wmkdir(wpath, mode);
free(wpath);
return ret;
}
/* License: Ruby's */
int
rb_w32_mkdir(const char *path, int mode)
{
WCHAR *wpath;
int ret;
if (!(wpath = filecp_to_wstr(path, NULL)))
return -1;
ret = wmkdir(wpath, mode);
free(wpath);
return ret;
}
/* License: Ruby's */
static int
wrmdir(const WCHAR *wpath)
{
int ret = 0;
RUBY_CRITICAL {
const DWORD attr = GetFileAttributesW(wpath);
if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY)) {
SetFileAttributesW(wpath, attr & ~FILE_ATTRIBUTE_READONLY);
}
if (RemoveDirectoryW(wpath) == FALSE) {
errno = map_errno(GetLastError());
ret = -1;
if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY)) {
SetFileAttributesW(wpath, attr);
}
}
}
return ret;
}
/* License: Ruby's */
int
rb_w32_rmdir(const char *path)
{
WCHAR *wpath;
int ret;
if (!(wpath = filecp_to_wstr(path, NULL)))
return -1;
ret = wrmdir(wpath);
free(wpath);
return ret;
}
/* License: Ruby's */
int
rb_w32_urmdir(const char *path)
{
WCHAR *wpath;
int ret;
if (!(wpath = utf8_to_wstr(path, NULL)))
return -1;
ret = wrmdir(wpath);
free(wpath);
return ret;
}
/* License: Ruby's */
static int
wunlink(const WCHAR *path)
{
int ret = 0;
const DWORD SYMLINKD = FILE_ATTRIBUTE_REPARSE_POINT|FILE_ATTRIBUTE_DIRECTORY;
RUBY_CRITICAL {
const DWORD attr = GetFileAttributesW(path);
if (attr == (DWORD)-1) {
}
else if ((attr & SYMLINKD) == SYMLINKD) {
ret = RemoveDirectoryW(path);
}
else {
if (attr & FILE_ATTRIBUTE_READONLY) {
SetFileAttributesW(path, attr & ~FILE_ATTRIBUTE_READONLY);
}
ret = DeleteFileW(path);
}
if (!ret) {
errno = map_errno(GetLastError());
ret = -1;
if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY)) {
SetFileAttributesW(path, attr);
}
}
}
return ret;
}
/* License: Ruby's */
int
rb_w32_uunlink(const char *path)
{
WCHAR *wpath;
int ret;
if (!(wpath = utf8_to_wstr(path, NULL)))
return -1;
ret = wunlink(wpath);
free(wpath);
return ret;
}
/* License: Ruby's */
int
rb_w32_unlink(const char *path)
{
WCHAR *wpath;
int ret;
if (!(wpath = filecp_to_wstr(path, NULL)))
return -1;
ret = wunlink(wpath);
free(wpath);
return ret;
}
/* License: Ruby's */
int
rb_w32_uchmod(const char *path, int mode)
{
WCHAR *wpath;
int ret;
if (!(wpath = utf8_to_wstr(path, NULL)))
return -1;
ret = _wchmod(wpath, mode);
free(wpath);
return ret;
}
/* License: Ruby's */
int
fchmod(int fd, int mode)
{
typedef BOOL (WINAPI *set_file_information_by_handle_func)
(HANDLE, int, void*, DWORD);
static set_file_information_by_handle_func set_file_info =
(set_file_information_by_handle_func)-1;
/* from winbase.h of the mingw-w64 runtime package. */
struct {
LARGE_INTEGER CreationTime;
LARGE_INTEGER LastAccessTime;
LARGE_INTEGER LastWriteTime;
LARGE_INTEGER ChangeTime;
DWORD FileAttributes;
} info = {{{0}}, {{0}}, {{0}},}; /* fields with 0 are unchanged */
HANDLE h = (HANDLE)_get_osfhandle(fd);
if (h == INVALID_HANDLE_VALUE) {
errno = EBADF;
return -1;
}
if (set_file_info == (set_file_information_by_handle_func)-1) {
/* Since Windows Vista and Windows Server 2008 */
set_file_info = (set_file_information_by_handle_func)
get_proc_address("kernel32", "SetFileInformationByHandle", NULL);
}
if (!set_file_info) {
errno = ENOSYS;
return -1;
}
info.FileAttributes = FILE_ATTRIBUTE_NORMAL;
if (!(mode & 0200)) info.FileAttributes |= FILE_ATTRIBUTE_READONLY;
if (!set_file_info(h, 0, &info, sizeof(info))) {
errno = map_errno(GetLastError());
return -1;
}
return 0;
}
/* License: Ruby's */
int
rb_w32_isatty(int fd)
{
DWORD mode;
// validate fd by using _get_osfhandle() because we cannot access _nhandle
if (_get_osfhandle(fd) == -1) {
return 0;
}
if (!GetConsoleMode((HANDLE)_osfhnd(fd), &mode)) {
errno = ENOTTY;
return 0;
}
return 1;
}
#if defined(_MSC_VER) && RUBY_MSVCRT_VERSION <= 60
extern long _ftol(double);
/* License: Ruby's */
long
_ftol2(double d)
{
return _ftol(d);
}
/* License: Ruby's */
long
_ftol2_sse(double d)
{
return _ftol(d);
}
#endif
#ifndef signbit
/* License: Ruby's */
int
signbit(double x)
{
int *ip = (int *)(&x + 1) - 1;
return *ip < 0;
}
#endif
/* License: Ruby's */
const char * WSAAPI
rb_w32_inet_ntop(int af, const void *addr, char *numaddr, size_t numaddr_len)
{
typedef char *(WSAAPI inet_ntop_t)(int, void *, char *, size_t);
static inet_ntop_t *pInetNtop = (inet_ntop_t *)-1;
if (pInetNtop == (inet_ntop_t *)-1)
pInetNtop = (inet_ntop_t *)get_proc_address("ws2_32", "inet_ntop", NULL);
if (pInetNtop) {
return pInetNtop(af, (void *)addr, numaddr, numaddr_len);
}
else {
struct in_addr in;
memcpy(&in.s_addr, addr, sizeof(in.s_addr));
snprintf(numaddr, numaddr_len, "%s", inet_ntoa(in));
}
return numaddr;
}
/* License: Ruby's */
int WSAAPI
rb_w32_inet_pton(int af, const char *src, void *dst)
{
typedef int (WSAAPI inet_pton_t)(int, const char*, void *);
static inet_pton_t *pInetPton = (inet_pton_t *)-1;
if (pInetPton == (inet_pton_t *)-1)
pInetPton = (inet_pton_t *)get_proc_address("ws2_32", "inet_pton", NULL);
if (pInetPton) {
return pInetPton(af, src, dst);
}
return 0;
}
/* License: Ruby's */
char
rb_w32_fd_is_text(int fd)
{
return _osfile(fd) & FTEXT;
}
#if RUBY_MSVCRT_VERSION < 80 && !defined(HAVE__GMTIME64_S)
/* License: Ruby's */
static int
unixtime_to_systemtime(const time_t t, SYSTEMTIME *st)
{
FILETIME ft;
if (unixtime_to_filetime(t, &ft)) return -1;
if (!FileTimeToSystemTime(&ft, st)) return -1;
return 0;
}
/* License: Ruby's */
static void
systemtime_to_tm(const SYSTEMTIME *st, struct tm *t)
{
int y = st->wYear, m = st->wMonth, d = st->wDay;
t->tm_sec = st->wSecond;
t->tm_min = st->wMinute;
t->tm_hour = st->wHour;
t->tm_mday = st->wDay;
t->tm_mon = st->wMonth - 1;
t->tm_year = y - 1900;
t->tm_wday = st->wDayOfWeek;
switch (m) {
case 1:
break;
case 2:
d += 31;
break;
default:
d += 31 + 28 + (!(y % 4) && ((y % 100) || !(y % 400)));
d += ((m - 3) * 153 + 2) / 5;
break;
}
t->tm_yday = d - 1;
}
/* License: Ruby's */
static int
systemtime_to_localtime(TIME_ZONE_INFORMATION *tz, SYSTEMTIME *gst, SYSTEMTIME *lst)
{
TIME_ZONE_INFORMATION stdtz;
SYSTEMTIME sst;
if (!SystemTimeToTzSpecificLocalTime(tz, gst, lst)) return -1;
if (!tz) {
GetTimeZoneInformation(&stdtz);
tz = &stdtz;
}
if (tz->StandardBias == tz->DaylightBias) return 0;
if (!tz->StandardDate.wMonth) return 0;
if (!tz->DaylightDate.wMonth) return 0;
if (tz != &stdtz) stdtz = *tz;
stdtz.StandardDate.wMonth = stdtz.DaylightDate.wMonth = 0;
if (!SystemTimeToTzSpecificLocalTime(&stdtz, gst, &sst)) return 0;
if (lst->wMinute == sst.wMinute && lst->wHour == sst.wHour)
return 0;
return 1;
}
#endif
#ifdef HAVE__GMTIME64_S
# ifndef HAVE__LOCALTIME64_S
/* assume same as _gmtime64_s() */
# define HAVE__LOCALTIME64_S 1
# endif
# ifndef MINGW_HAS_SECURE_API
_CRTIMP errno_t __cdecl _gmtime64_s(struct tm* tm, const __time64_t *time);
_CRTIMP errno_t __cdecl _localtime64_s(struct tm* tm, const __time64_t *time);
# endif
# define gmtime_s _gmtime64_s
# define localtime_s _localtime64_s
#endif
/* License: Ruby's */
struct tm *
gmtime_r(const time_t *tp, struct tm *rp)
{
int e = EINVAL;
if (!tp || !rp) {
error:
errno = e;
return NULL;
}
#if RUBY_MSVCRT_VERSION >= 80 || defined(HAVE__GMTIME64_S)
e = gmtime_s(rp, tp);
if (e != 0) goto error;
#else
{
SYSTEMTIME st;
if (unixtime_to_systemtime(*tp, &st)) goto error;
rp->tm_isdst = 0;
systemtime_to_tm(&st, rp);
}
#endif
return rp;
}
/* License: Ruby's */
struct tm *
localtime_r(const time_t *tp, struct tm *rp)
{
int e = EINVAL;
if (!tp || !rp) {
error:
errno = e;
return NULL;
}
#if RUBY_MSVCRT_VERSION >= 80 || defined(HAVE__LOCALTIME64_S)
e = localtime_s(rp, tp);
if (e) goto error;
#else
{
SYSTEMTIME gst, lst;
if (unixtime_to_systemtime(*tp, &gst)) goto error;
rp->tm_isdst = systemtime_to_localtime(NULL, &gst, &lst);
systemtime_to_tm(&lst, rp);
}
#endif
return rp;
}
/* License: Ruby's */
int
rb_w32_wrap_io_handle(HANDLE h, int flags)
{
BOOL tmp;
int len = sizeof(tmp);
int r = getsockopt((SOCKET)h, SOL_SOCKET, SO_DEBUG, (char *)&tmp, &len);
if (r != SOCKET_ERROR || WSAGetLastError() != WSAENOTSOCK) {
int f = 0;
if (flags & O_NONBLOCK) {
flags &= ~O_NONBLOCK;
f = O_NONBLOCK;
}
socklist_insert((SOCKET)h, f);
}
else if (flags & O_NONBLOCK) {
errno = EINVAL;
return -1;
}
return rb_w32_open_osfhandle((intptr_t)h, flags);
}
/* License: Ruby's */
int
rb_w32_unwrap_io_handle(int fd)
{
SOCKET sock = TO_SOCKET(fd);
_set_osfhnd(fd, (SOCKET)INVALID_HANDLE_VALUE);
if (!is_socket(sock)) {
UnlockFile((HANDLE)sock, 0, 0, LK_LEN, LK_LEN);
constat_delete((HANDLE)sock);
}
else {
socklist_delete(&sock, NULL);
}
return _close(fd);
}
#if !defined(__MINGW64__) && defined(__MINGW64_VERSION_MAJOR)
/*
* Set floating point precision for pow() of mingw-w64 x86.
* With default precision the result is not proper on WinXP.
*/
double
rb_w32_pow(double x, double y)
{
#undef pow
double r;
unsigned int default_control = _controlfp(0, 0);
_controlfp(_PC_64, _MCW_PC);
r = pow(x, y);
/* Restore setting */
_controlfp(default_control, _MCW_PC);
return r;
}
#endif
typedef struct {
BOOL file_id_p;
union {
BY_HANDLE_FILE_INFORMATION bhfi;
FILE_ID_INFO fii;
} info;
} w32_io_info_t;
static HANDLE
w32_io_info(VALUE *file, w32_io_info_t *st)
{
VALUE tmp;
HANDLE f, ret = 0;
tmp = rb_check_convert_type_with_id(*file, T_FILE, "IO", idTo_io);
if (!NIL_P(tmp)) {
f = (HANDLE)rb_w32_get_osfhandle(rb_io_descriptor(tmp));
if (f == (HANDLE)-1) return INVALID_HANDLE_VALUE;
}
else {
VALUE tmp;
WCHAR *ptr;
int len;
VALUE v;
FilePathValue(*file);
tmp = rb_str_encode_ospath(*file);
len = MultiByteToWideChar(CP_UTF8, 0, RSTRING_PTR(tmp), -1, NULL, 0);
ptr = ALLOCV_N(WCHAR, v, len);
MultiByteToWideChar(CP_UTF8, 0, RSTRING_PTR(tmp), -1, ptr, len);
f = CreateFileW(ptr, 0,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, NULL);
ALLOCV_END(v);
if (f == INVALID_HANDLE_VALUE) return f;
ret = f;
}
if (GetFileType(f) == FILE_TYPE_DISK) {
DWORD err;
ZeroMemory(st, sizeof(*st));
err = get_ino(f, &st->info.fii);
if (!err) {
st->file_id_p = TRUE;
return ret;
}
else if (err != ERROR_INVALID_PARAMETER) {
CloseHandle(f);
return INVALID_HANDLE_VALUE;
}
/* this API may not work at files on non Microsoft SMB
* server, fallback to old API then. */
if (GetFileInformationByHandle(f, &st->info.bhfi)) {
st->file_id_p = FALSE;
return ret;
}
}
if (ret) CloseHandle(ret);
return INVALID_HANDLE_VALUE;
}
static VALUE
close_handle(VALUE h)
{
CloseHandle((HANDLE)h);
return Qfalse;
}
struct w32_io_info_args {
VALUE *fname;
w32_io_info_t *st;
};
static VALUE
call_w32_io_info(VALUE arg)
{
struct w32_io_info_args *p = (void *)arg;
return (VALUE)w32_io_info(p->fname, p->st);
}
VALUE
rb_w32_file_identical_p(VALUE fname1, VALUE fname2)
{
w32_io_info_t st1, st2;
HANDLE f1 = 0, f2 = 0;
f1 = w32_io_info(&fname1, &st1);
if (f1 == INVALID_HANDLE_VALUE) return Qfalse;
if (f1) {
struct w32_io_info_args arg;
arg.fname = &fname2;
arg.st = &st2;
f2 = (HANDLE)rb_ensure(call_w32_io_info, (VALUE)&arg, close_handle, (VALUE)f1);
}
else {
f2 = w32_io_info(&fname2, &st2);
}
if (f2 == INVALID_HANDLE_VALUE) return Qfalse;
if (f2) CloseHandle(f2);
if (st1.file_id_p != st2.file_id_p) return Qfalse;
if (!st1.file_id_p) {
if (st1.info.bhfi.dwVolumeSerialNumber == st2.info.bhfi.dwVolumeSerialNumber &&
st1.info.bhfi.nFileIndexHigh == st2.info.bhfi.nFileIndexHigh &&
st1.info.bhfi.nFileIndexLow == st2.info.bhfi.nFileIndexLow)
return Qtrue;
}
else {
if (st1.info.fii.VolumeSerialNumber == st2.info.fii.VolumeSerialNumber &&
memcmp(&st1.info.fii.FileId, &st2.info.fii.FileId, sizeof(FILE_ID_128)) == 0)
return Qtrue;
}
return Qfalse;
}
int
rb_w32_set_thread_description(HANDLE th, const WCHAR *name)
{
int result = FALSE;
typedef HRESULT (WINAPI *set_thread_description_func)(HANDLE, PCWSTR);
static set_thread_description_func set_thread_description =
(set_thread_description_func)-1;
if (set_thread_description == (set_thread_description_func)-1) {
/* Since Windows 10, version 1607 and Windows Server 2016 */
set_thread_description = (set_thread_description_func)
get_proc_address("kernel32", "SetThreadDescription", NULL);
}
if (set_thread_description) {
result = set_thread_description(th, name);
}
return result;
}
int
rb_w32_set_thread_description_str(HANDLE th, VALUE name)
{
int idx, result = FALSE;
WCHAR *s;
if (NIL_P(name)) {
return rb_w32_set_thread_description(th, L"");
}
s = (WCHAR *)StringValueCStr(name);
idx = rb_enc_get_index(name);
if (idx == ENCINDEX_UTF_16LE) {
result = rb_w32_set_thread_description(th, s);
}
else {
name = rb_str_conv_enc(name, rb_enc_from_index(idx), rb_utf8_encoding());
s = mbstr_to_wstr(CP_UTF8, RSTRING_PTR(name), RSTRING_LEN(name)+1, NULL);
result = rb_w32_set_thread_description(th, s);
free(s);
}
RB_GC_GUARD(name);
return result;
}
VALUE (*const rb_f_notimplement_)(int, const VALUE *, VALUE, VALUE) = rb_f_notimplement;
#if RUBY_MSVCRT_VERSION < 120
#include "missing/nextafter.c"
#endif
void *
rb_w32_mmap(void *addr, size_t len, int prot, int flags, int fd, rb_off_t offset)
{
void *ptr;
//DWORD protect = 0;
DWORD protect = PAGE_EXECUTE_READWRITE;
if (fd > 0 || offset) {
/* not supported */
errno = EINVAL;
return MAP_FAILED;
}
/*
if (prot & PROT_EXEC) {
if (prot & PROT_WRITE) protect = PAGE_EXECUTE_READWRITE;
else if (prot & PROT_READ) protect = PAGE_EXECUTE_READ;
else protect = PAGE_EXECUTE;
}
else if (prot & PROT_WRITE) protect = PAGE_READWRITE;
else if (prot & PROT_READ) protect = PAGE_READONLY;
*/
ptr = VirtualAlloc(addr, len, MEM_RESERVE | MEM_COMMIT, protect);
if (!ptr) {
errno = rb_w32_map_errno(GetLastError());
return MAP_FAILED;
}
return ptr;
}
int
rb_w32_munmap(void *addr, size_t len)
{
if (!VirtualFree(addr, 0, MEM_RELEASE)) {
errno = rb_w32_map_errno(GetLastError());
return -1;
}
return 0;
}
inline int
rb_w32_mprotect(void *addr, size_t len, int prot)
{
/*
DWORD protect = 0;
if (prot & PROT_EXEC) {
if (prot & PROT_WRITE) protect = PAGE_EXECUTE_READWRITE;
else if (prot & PROT_READ) protect = PAGE_EXECUTE_READ;
else protect = PAGE_EXECUTE;
}
else if (prot & PROT_WRITE) protect = PAGE_READWRITE;
else if (prot & PROT_READ) protect = PAGE_READONLY;
if (!VirtualProtect(addr, len, protect, NULL)) {
errno = rb_w32_map_errno(GetLastError());
return -1;
}
*/
if (prot & PROT_EXEC) {
if (!FlushInstructionCache(GetCurrentProcess(), addr, len)) {
errno = rb_w32_map_errno(GetLastError());
return -1;
}
}
return 0;
}
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