/* * 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. * */ #include "ruby.h" #include "rubysig.h" #include "dln.h" #include #include #include /* #include */ #include #include #include #include #include #include #include #include #ifdef __MINGW32__ #include #endif #include "win32.h" #include "win32/dir.h" #ifdef _WIN32_WCE #include "wince.h" #endif #ifndef index #define index(x, y) strchr((x), (y)) #endif #define isdirsep(x) ((x) == '/' || (x) == '\\') #undef stat #undef fclose #undef close #undef setsockopt #ifdef _M_IX86 # define WIN95 1 #else # undef WIN95 #endif #if defined __BORLANDC__ || defined _WIN32_WCE # define _filbuf _fgetc # define _flsbuf _fputc # define enough_to_get(n) (--(n) >= 0) # define enough_to_put(n) (++(n) < 0) #else # define enough_to_get(n) (--(n) >= 0) # define enough_to_put(n) (--(n) >= 0) #endif #if HAVE_WSAWAITFORMULTIPLEEVENTS # define USE_INTERRUPT_WINSOCK 1 #endif #if USE_INTERRUPT_WINSOCK # define WaitForMultipleEvents WSAWaitForMultipleEvents # define CreateSignal() (HANDLE)WSACreateEvent() # define SetSignal(ev) WSASetEvent(ev) # define ResetSignal(ev) WSAResetEvent(ev) #else /* USE_INTERRUPT_WINSOCK */ # define WaitForMultipleEvents WaitForMultipleObjectsEx # define CreateSignal() CreateEvent(NULL, FALSE, FALSE, NULL); # define SetSignal(ev) SetEvent(ev) # define ResetSignal(ev) (void)0 #endif /* USE_INTERRUPT_WINSOCK */ #ifdef WIN32_DEBUG #define Debug(something) something #else #define Debug(something) /* nothing */ #endif #define TO_SOCKET(x) _get_osfhandle(x) static struct ChildRecord *CreateChild(const char *, const char *, SECURITY_ATTRIBUTES *, HANDLE, HANDLE, HANDLE); static int has_redirection(const char *); static void StartSockets(void); static DWORD wait_events(HANDLE event, DWORD timeout); #if !defined(_WIN32_WCE) static int rb_w32_open_osfhandle(long osfhandle, int flags); #else #define rb_w32_open_osfhandle(osfhandle, flags) _open_osfhandle(osfhandle, flags) #endif /* errno mapping */ static 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 }, { ERROR_NOT_ENOUGH_QUOTA, ENOMEM }, { WSAENAMETOOLONG, ENAMETOOLONG }, { WSAENOTEMPTY, ENOTEMPTY } }; static int map_errno(DWORD winerr) { int i; if (winerr == 0) { return 0; } for (i = 0; i < sizeof(errmap) / sizeof(*errmap); i++) { if (errmap[i].winerr == winerr) { return errmap[i].err; } } if (winerr >= WSABASEERR) { return winerr; } return EINVAL; } static char *NTLoginName; #ifdef WIN95 DWORD Win32System = (DWORD)-1; static DWORD IdOS(void) { static OSVERSIONINFO osver; if (osver.dwPlatformId != Win32System) { memset(&osver, 0, sizeof(OSVERSIONINFO)); osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); GetVersionEx(&osver); Win32System = osver.dwPlatformId; } return (Win32System); } static int IsWin95(void) { return (IdOS() == VER_PLATFORM_WIN32_WINDOWS); } static int IsWinNT(void) { return (IdOS() == VER_PLATFORM_WIN32_NT); } #else # define IsWinNT() TRUE # define IsWin95() FALSE #endif /* main thread constants */ static struct { HANDLE handle; DWORD id; } main_thread; /* interrupt stuff */ static HANDLE interrupted_event; HANDLE GetCurrentThreadHandle(void) { static HANDLE current_process_handle = NULL; HANDLE h; if (!current_process_handle) current_process_handle = GetCurrentProcess(); if (!DuplicateHandle(current_process_handle, GetCurrentThread(), current_process_handle, &h, 0, FALSE, DUPLICATE_SAME_ACCESS)) return NULL; return h; } /* simulate flock by locking a range on the file */ #define LK_ERR(f,i) ((f) ? (i = 0) : (errno = GetLastError() == ERROR_LOCK_VIOLATION ? EWOULDBLOCK : EACCES)) #define LK_LEN ULONG_MAX static VALUE flock_winnt(VALUE self, int argc, VALUE* 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; } #ifdef WIN95 static VALUE flock_win95(VALUE self, int argc, VALUE* argv) { int i = -1; const HANDLE fh = (HANDLE)self; const int oper = argc; switch(oper) { case LOCK_EX: do { LK_ERR(LockFile(fh, 0, 0, LK_LEN, LK_LEN), i); } while (i && errno == EWOULDBLOCK); break; case LOCK_EX|LOCK_NB: LK_ERR(LockFile(fh, 0, 0, LK_LEN, LK_LEN), i); break; case LOCK_UN: case LOCK_UN|LOCK_NB: LK_ERR(UnlockFile(fh, 0, 0, LK_LEN, LK_LEN), i); break; default: errno = EINVAL; break; } return i; } #endif #undef LK_ERR int flock(int fd, int oper) { #ifdef WIN95 static asynchronous_func_t locker = NULL; if (!locker) { if (IsWinNT()) locker = flock_winnt; else locker = flock_win95; } #else const asynchronous_func_t locker = flock_winnt; #endif return rb_w32_asynchronize(locker, (VALUE)_get_osfhandle(fd), oper, NULL, (DWORD)-1); } static void init_env(void) { char env[_MAX_PATH]; DWORD len; BOOL f; LPITEMIDLIST pidl; if (!GetEnvironmentVariable("HOME", env, sizeof(env))) { f = FALSE; if (GetEnvironmentVariable("HOMEDRIVE", env, sizeof(env))) len = strlen(env); else len = 0; if (GetEnvironmentVariable("HOMEPATH", env + len, sizeof(env) - len) || len) { f = TRUE; } else if (GetEnvironmentVariable("USERPROFILE", env, sizeof(env))) { f = TRUE; } else if (SHGetSpecialFolderLocation(NULL, CSIDL_PERSONAL, &pidl) == 0) { LPMALLOC alloc; f = SHGetPathFromIDList(pidl, env); SHGetMalloc(&alloc); alloc->lpVtbl->Free(alloc, pidl); alloc->lpVtbl->Release(alloc); } if (f) { char *p = env; while (*p) { if (*p == '\\') *p = '/'; p = CharNext(p); } if (p - env == 2 && env[1] == ':') { *p++ = '/'; *p = 0; } SetEnvironmentVariable("HOME", env); } } if (GetEnvironmentVariable("USER", env, sizeof env)) { len = strlen(env); } if (GetEnvironmentVariable("USERNAME", env, sizeof env)) { len = strlen(env); SetEnvironmentVariable("USER", env); } else if (GetUserName(env, (len = sizeof env, &len))) { SetEnvironmentVariable("USER", env); } else { NTLoginName = ""; return; } NTLoginName = ALLOC_N(char, len+1); strncpy(NTLoginName, env, len); NTLoginName[len] = '\0'; } static void init_stdhandle(void); // // Initialization stuff // void NtInitialize(int *argc, char ***argv) { WORD version; int ret; // // subvert cmd.exe's feeble attempt at command line parsing // *argc = rb_w32_cmdvector(GetCommandLine(), argv); // // Now set up the correct time stuff // tzset(); init_env(); init_stdhandle(); // Initialize Winsock StartSockets(); #ifdef _WIN32_WCE // free commandline buffer wce_FreeCommandLine(); #endif } char * getlogin(void) { return NTLoginName; } #define MAXCHILDNUM 256 /* max num of child processes */ static struct ChildRecord { HANDLE hProcess; /* process handle */ rb_pid_t pid; /* process id */ } ChildRecord[MAXCHILDNUM]; #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) static struct ChildRecord * FindFirstChildSlot(void) { FOREACH_CHILD(child) { if (child->pid) return child; } END_FOREACH_CHILD; return NULL; } static struct ChildRecord * FindChildSlot(rb_pid_t pid) { FOREACH_CHILD(child) { if (child->pid == pid) { return child; } } END_FOREACH_CHILD; return NULL; } static void CloseChildHandle(struct ChildRecord *child) { HANDLE h = child->hProcess; child->hProcess = NULL; child->pid = 0; CloseHandle(h); } 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 */ static char *szInternalCmds[] = { "\2" "assoc" + 1, "\3" "break" + 1, "\3" "call" + 1, "\3" "cd" + 1, "\1" "chcp" + 1, "\3" "chdir" + 1, "\3" "cls" + 1, "\2" "color" + 1, "\3" "copy" + 1, "\1" "ctty" + 1, "\3" "date" + 1, "\3" "del" + 1, "\3" "dir" + 1, "\3" "echo" + 1, "\2" "endlocal" + 1, "\3" "erase" + 1, "\3" "exit" + 1, "\3" "for" + 1, "\2" "ftype" + 1, "\3" "goto" + 1, "\3" "if" + 1, "\1" "lfnfor" + 1, "\1" "lh" + 1, "\1" "lock" + 1, "\3" "md" + 1, "\3" "mkdir" + 1, "\2" "move" + 1, "\3" "path" + 1, "\3" "pause" + 1, "\2" "popd" + 1, "\3" "prompt" + 1, "\2" "pushd" + 1, "\3" "rd" + 1, "\3" "rem" + 1, "\3" "ren" + 1, "\3" "rename" + 1, "\3" "rmdir" + 1, "\3" "set" + 1, "\2" "setlocal" + 1, "\3" "shift" + 1, "\2" "start" + 1, "\3" "time" + 1, "\2" "title" + 1, "\1" "truename" + 1, "\3" "type" + 1, "\1" "unlock" + 1, "\3" "ver" + 1, "\3" "verify" + 1, "\3" "vol" + 1, }; static int internal_match(const void *key, const void *elem) { return strcmp(key, *(const char *const *)elem); } static int isInternalCmd(const char *cmd, const char *interp) { int i, nt = 1; char cmdname[9], *b = cmdname, c, **nm; i = strlen(interp) - 11; if ((i == 0 || i > 0 && isdirsep(interp[i-1])) && strcasecmp(interp+i, "command.com") == 0) { nt = 0; } do { if (!(c = *cmd++)) return 0; } while (isspace(c)); 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; nm = bsearch(cmdname, szInternalCmds, sizeof(szInternalCmds) / sizeof(*szInternalCmds), sizeof(*szInternalCmds), internal_match); if (!nm || !(nm[0][-1] & (nt ? 2 : 1))) return 0; return 1; } SOCKET rb_w32_get_osfhandle(int fh) { return _get_osfhandle(fh); } int rb_w32_argv_size(char *const *argv) { const char *p; char *const *t; int len, n, bs, quote; for (t = argv, len = 0; *t; t++) { for (p = *t, n = quote = bs = 0; *p; ++p) { switch (*p) { case '\\': ++bs; break; case '"': n += bs + 1; bs = 0; quote = 1; break; case ' ': case '\t': quote = 1; default: bs = 0; p = CharNext(p) - 1; break; } } len += p - *t + n + 1; if (quote) len += 2; } return len; } char * rb_w32_join_argv(char *cmd, char *const *argv) { const char *p, *s; char *q, *const *t; int n, bs, quote; for (t = argv, q = cmd; p = *t; t++) { quote = 0; s = p; if (!*p || strpbrk(p, " \t\"")) { quote = 1; *q++ = '"'; } for (bs = 0; *p; ++p) { switch (*p) { case '\\': ++bs; break; case '"': memcpy(q, s, n = p - s); q += n; s = p; memset(q, '\\', ++bs); q += bs; bs = 0; break; default: bs = 0; p = CharNext(p) - 1; break; } } memcpy(q, s, n = p - s); q += n; if (quote) *q++ = '"'; *q++ = ' '; } if (q > cmd) --q; *q = '\0'; return cmd; } static int socketpair_internal(int af, int type, int protocol, SOCKET *sv); rb_pid_t rb_w32_pipe_exec(const char *cmd, const char *prog, int mode, int *pipe) { struct ChildRecord* child; HANDLE hOrg, hIn, hOut; HANDLE hDupFile; HANDLE hCurProc; SECURITY_ATTRIBUTES sa; BOOL reading, writing; SOCKET pair[2]; int fd; int pipemode; int ret; /* Figure out what we're doing... */ if (mode & O_RDWR) { if (IsWin95()) { errno = EINVAL; return -1; } reading = writing = TRUE; pipemode = _O_RDWR; } else if (mode & O_WRONLY) { reading = FALSE; writing = TRUE; pipemode = _O_WRONLY; } else { reading = TRUE; writing = FALSE; pipemode = _O_RDONLY; } pipemode |= (mode & O_BINARY) ? O_BINARY : O_TEXT; sa.nLength = sizeof (SECURITY_ATTRIBUTES); sa.lpSecurityDescriptor = NULL; sa.bInheritHandle = TRUE; ret = -1; RUBY_CRITICAL(do { /* create pipe */ hCurProc = GetCurrentProcess(); if (reading && writing) { if (socketpair_internal(AF_INET, SOCK_STREAM, 0, pair) < 0) { break; } if (!DuplicateHandle(hCurProc, (HANDLE)pair[1], hCurProc, &hDupFile, 0, FALSE, DUPLICATE_SAME_ACCESS)) { errno = map_errno(GetLastError()); closesocket(pair[0]); closesocket(pair[1]); CloseHandle(hCurProc); break; } closesocket(pair[1]); hOrg = hIn = hOut = (HANDLE)pair[0]; } else if (reading) { if (!CreatePipe(&hIn, &hOut, &sa, 2048L)) { errno = map_errno(GetLastError()); break; } if (!DuplicateHandle(hCurProc, hIn, hCurProc, &hDupFile, 0, FALSE, DUPLICATE_SAME_ACCESS)) { errno = map_errno(GetLastError()); CloseHandle(hIn); CloseHandle(hOut); break; } CloseHandle(hIn); hIn = NULL; hOrg = hOut; } else { /* writing */ if (!CreatePipe(&hIn, &hOut, &sa, 2048L)) { errno = map_errno(GetLastError()); break; } if (!DuplicateHandle(hCurProc, hOut, hCurProc, &hDupFile, 0, FALSE, DUPLICATE_SAME_ACCESS)) { errno = map_errno(GetLastError()); CloseHandle(hIn); CloseHandle(hOut); break; } CloseHandle(hOut); hOut = NULL; hOrg = hIn; } /* create child process */ child = CreateChild(cmd, prog, &sa, hIn, hOut, NULL); if (!child) { CloseHandle(hOrg); CloseHandle(hDupFile); break; } /* associate handle to file descritor */ *pipe = rb_w32_open_osfhandle((long)hDupFile, pipemode); CloseHandle(hOrg); if (*pipe == -1) { CloseHandle(hDupFile); CloseChildHandle(child); break; } ret = child->pid; } while (0)); return ret; } extern VALUE rb_last_status; int rb_w32_spawn(int mode, const char *cmd, const char *prog) { struct ChildRecord *child; DWORD exitcode; switch (mode) { case P_WAIT: case P_NOWAIT: case P_OVERLAY: break; default: errno = EINVAL; return -1; } child = CreateChild(cmd, prog, NULL, NULL, NULL, NULL); if (!child) { return -1; } switch (mode) { case P_WAIT: rb_syswait(child->pid); return NUM2INT(rb_last_status); case P_NOWAIT: return child->pid; case P_OVERLAY: WaitForSingleObject(child->hProcess, INFINITE); GetExitCodeProcess(child->hProcess, &exitcode); CloseChildHandle(child); _exit(exitcode); default: return -1; /* not reached */ } } int rb_w32_aspawn(int mode, const char *prog, char *const *argv) { int len = rb_w32_argv_size(argv); char *cmd = ALLOCA_N(char, len); if (!prog) prog = argv[0]; return rb_w32_spawn(mode, rb_w32_join_argv(cmd, argv), prog); } static struct ChildRecord * CreateChild(const char *cmd, const char *prog, SECURITY_ATTRIBUTES *psa, HANDLE hInput, HANDLE hOutput, HANDLE hError) { BOOL fRet; DWORD dwCreationFlags; STARTUPINFO aStartupInfo; PROCESS_INFORMATION aProcessInformation; SECURITY_ATTRIBUTES sa; const char *shell; struct ChildRecord *child; char *p = NULL; if (!cmd && !prog) { errno = EFAULT; return NULL; } child = FindFreeChildSlot(); if (!child) { errno = EAGAIN; return NULL; } if (!psa) { sa.nLength = sizeof (SECURITY_ATTRIBUTES); sa.lpSecurityDescriptor = NULL; sa.bInheritHandle = TRUE; psa = &sa; } memset(&aStartupInfo, 0, sizeof (STARTUPINFO)); memset(&aProcessInformation, 0, sizeof (PROCESS_INFORMATION)); aStartupInfo.cb = sizeof (STARTUPINFO); if (hInput || hOutput || hError) { 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 (prog) { if (!(p = dln_find_exe(prog, NULL))) { shell = prog; } } else { int redir = -1; int len = 0; while (ISSPACE(*cmd)) cmd++; for (prog = cmd; *prog; prog = CharNext(prog)) { if (ISSPACE(*prog)) { len = prog - cmd; do ++prog; while (ISSPACE(*prog)); if (!*prog--) break; } else { len = 0; } } if (!len) len = strlen(cmd); if ((shell = getenv("RUBYSHELL")) && (redir = has_redirection(cmd))) { char *tmp = ALLOCA_N(char, strlen(shell) + len + sizeof(" -c ") + 2); sprintf(tmp, "%s -c \"%.*s\"", shell, len, cmd); cmd = tmp; } else if ((shell = getenv("COMSPEC")) && ((redir < 0 ? has_redirection(cmd) : redir) || isInternalCmd(cmd, shell))) { char *tmp = ALLOCA_N(char, strlen(shell) + len + sizeof(" /c ")); sprintf(tmp, "%s /c %.*s", shell, len, cmd); cmd = tmp; } else { shell = NULL; prog = cmd; for (;;) { if (!*prog) { p = dln_find_exe(cmd, NULL); break; } if (strchr(".:*?\"/\\", *prog)) { if (cmd[len]) { char *tmp = ALLOCA_N(char, len + 1); memcpy(tmp, cmd, len); tmp[len] = 0; cmd = tmp; } break; } if (ISSPACE(*prog) || strchr("<>|", *prog)) { len = prog - cmd; p = ALLOCA_N(char, len + 1); memcpy(p, cmd, len); p[len] = 0; p = dln_find_exe(p, NULL); break; } prog++; } } } if (p) { shell = p; while (*p) { if ((unsigned char)*p == '/') *p = '\\'; p = CharNext(p); } } RUBY_CRITICAL({ fRet = CreateProcess(shell, (char *)cmd, psa, psa, psa->bInheritHandle, dwCreationFlags, NULL, NULL, &aStartupInfo, &aProcessInformation); errno = map_errno(GetLastError()); }); if (!fRet) { child->pid = 0; /* release the slot */ return NULL; } CloseHandle(aProcessInformation.hThread); child->hProcess = aProcessInformation.hProcess; child->pid = (rb_pid_t)aProcessInformation.dwProcessId; if (!IsWinNT()) { /* On Win9x, make pid positive similarly to cygwin and perl */ child->pid = -child->pid; } return child; } typedef struct _NtCmdLineElement { struct _NtCmdLineElement *next; char *str; int 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 static int insert(const char *path, VALUE vinfo) { NtCmdLineElement *tmpcurr; NtCmdLineElement ***tail = (NtCmdLineElement ***)vinfo; tmpcurr = ALLOC(NtCmdLineElement); MEMZERO(tmpcurr, NtCmdLineElement, 1); tmpcurr->len = strlen(path); tmpcurr->str = ALLOC_N(char, tmpcurr->len + 1); tmpcurr->flags |= NTMALLOC; strcpy(tmpcurr->str, path); **tail = tmpcurr; *tail = &tmpcurr->next; return 0; } #ifdef HAVE_SYS_PARAM_H # include #else # define MAXPATHLEN 512 #endif static NtCmdLineElement ** cmdglob(NtCmdLineElement *patt, NtCmdLineElement **tail) { char buffer[MAXPATHLEN], *buf = buffer; char *p; NtCmdLineElement **last = tail; if (patt->len >= MAXPATHLEN) buf = ruby_xmalloc(patt->len + 1); strncpy (buf, patt->str, patt->len); buf[patt->len] = '\0'; for (p = buf; *p; p = CharNext(p)) if (*p == '\\') *p = '/'; ruby_brace_glob(buf, 0, insert, (VALUE)&tail); if (buf != buffer) free(buf); if (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 // static int has_redirection(const char *cmd) { char quote = '\0'; const char *ptr; // // Scan the string, looking for redirection (< or >) or pipe // characters (|) 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 '|': if (!quote) return TRUE; ptr++; break; case '\\': ptr++; default: ptr = CharNext(ptr); break; } } return FALSE; } static inline char * skipspace(char *ptr) { while (ISSPACE(*ptr)) ptr++; return ptr; } int rb_w32_cmdvector(const char *cmd, char ***vec) { int cmdlen, globbing, len, i; int elements, strsz, done; int slashes, escape; char *ptr, *base, *buffer, *cmdline; char **vptr; char 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 = strdup(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 interation for each element seen. // The inner loop does one interation 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 '\\': slashes++; break; case ' ': case '\t': case '\n': // // if we're not in a string, then we're finished with this // element // if (!quote) { *ptr = 0; done = 1; } break; case '*': case '?': case '[': case '{': // // record the fact that this element has a wildcard character // N.B. Don't glob if inside a single quoted string // if (quote != '\'') globbing++; slashes = 0; break; case '\'': case '\"': // // 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 neccessarily 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 == '"' && quote == ptr[1]) ptr++; quote = '\0'; } } escape++; slashes = 0; break; default: ptr = CharNext(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) { char *p = base, c; slashes = quote = 0; while (p < base + len) { switch (c = *p) { case '\\': p++; slashes++; break; case '\'': case '"': if (!(slashes & 1) && quote && quote != c) { p++; slashes = 0; break; } memcpy(p - ((slashes + 1) >> 1), p + (~slashes & 1), base + len - p); len -= ((slashes + 1) >> 1) + (~slashes & 1); p -= (slashes + 1) >> 1; if (!(slashes & 1)) { if (quote) { if (quote == '"' && quote == *p) p++; quote = '\0'; } else quote = c; } else p++; slashes = 0; break; default: p = CharNext(p); slashes = 0; break; } } } curr = ALLOC(NtCmdLineElement); MEMZERO(curr, NtCmdLineElement, 1); curr->str = base; curr->len = len; if (globbing && (tail = cmdglob(curr, cmdtail))) { 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 = ALLOC_N(char, len); // // make vptr point to the start of the buffer // and ptr 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; ptr = buffer + (elements+1) * sizeof(char *); while (curr = cmdhead) { strncpy (ptr, curr->str, curr->len); ptr[curr->len] = '\0'; *vptr++ = ptr; ptr += 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 // #define PATHLEN 1024 // // 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. // #define GetBit(bits, i) ((bits)[(i) / 8] & (1 << (i) % 8)) #define SetBit(bits, i) ((bits)[(i) / 8] |= (1 << (i) % 8)) DIR * rb_w32_opendir(const char *filename) { DIR *p; long len; long idx; char scannamespc[PATHLEN]; char *scanname = scannamespc; struct stat sbuf; WIN32_FIND_DATA fd; HANDLE fh; // // check to see if we've got a directory // if (rb_w32_stat(filename, &sbuf) < 0) return NULL; if (!(sbuf.st_mode & S_IFDIR) && (!ISALPHA(filename[0]) || filename[1] != ':' || filename[2] != '\0' || ((1 << (filename[0] & 0x5f) - 'A') & GetLogicalDrives()) == 0)) { errno = ENOTDIR; return NULL; } // // Get us a DIR structure // p = xcalloc(sizeof(DIR), 1); if (p == NULL) return NULL; // // Create the search pattern // strcpy(scanname, filename); if (index("/\\:", *CharPrev(scanname, scanname + strlen(scanname))) == NULL) strcat(scanname, "/*"); else strcat(scanname, "*"); // // do the FindFirstFile call // fh = FindFirstFile(scanname, &fd); if (fh == INVALID_HANDLE_VALUE) { errno = map_errno(GetLastError()); return NULL; } // // now allocate the first part of the string table for the // filenames that we find. // idx = strlen(fd.cFileName)+1; p->start = ALLOC_N(char, idx); strcpy(p->start, fd.cFileName); p->bits = ALLOC_N(char, 1); p->bits[0] = 0; if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) SetBit(p->bits, 0); if (fd.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) SetBit(p->bits, 1); p->nfiles++; // // 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. // while (FindNextFile(fh, &fd)) { len = strlen(fd.cFileName); // // bump the string table size by enough for the // new name and it's null terminator // #define Renew(x, y, z) (x = (z *)realloc(x, y)) Renew (p->start, idx+len+1, char); if (p->start == NULL) { rb_fatal ("opendir: malloc failed!\n"); } strcpy(&p->start[idx], fd.cFileName); if (p->nfiles % 4 == 0) { Renew (p->bits, p->nfiles / 4 + 1, char); if (p->bits == NULL) { rb_fatal ("opendir: malloc failed!\n"); } p->bits[p->nfiles / 4] = 0; } if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) SetBit(p->bits, p->nfiles * 2); if (fd.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) SetBit(p->bits, p->nfiles * 2 + 1); p->nfiles++; idx += len+1; } FindClose(fh); p->size = idx; p->curr = p->start; return p; } // // Readdir just returns the current string pointer and bumps the // string pointer to the next entry. // struct direct * rb_w32_readdir(DIR *dirp) { int len; static int dummy = 0; if (dirp->curr) { // // first set up the structure to return // len = strlen(dirp->curr); strcpy(dirp->dirstr.d_name, dirp->curr); dirp->dirstr.d_namlen = len; // // Fake inode // dirp->dirstr.d_ino = dummy++; // // Attributes // dirp->dirstr.d_isdir = GetBit(dirp->bits, dirp->bitpos); dirp->bitpos++; dirp->dirstr.d_isrep = GetBit(dirp->bits, dirp->bitpos); dirp->bitpos++; // // Now set up for the next call to readdir // dirp->curr += len + 1; if (dirp->curr >= (dirp->start + dirp->size)) { dirp->curr = NULL; } return &(dirp->dirstr); } else return NULL; } // // Telldir returns the current string pointer position // long rb_w32_telldir(DIR *dirp) { return (long) dirp->curr; /* ouch! pointer to long cast */ } // // Seekdir moves the string pointer to a previously saved position // (Saved by telldir). void rb_w32_seekdir(DIR *dirp, long loc) { dirp->curr = (char *) loc; /* ouch! long to pointer cast */ } // // Rewinddir resets the string pointer to the start // void rb_w32_rewinddir(DIR *dirp) { dirp->curr = dirp->start; dirp->bitpos = 0; } // // This just free's the memory allocated by opendir // void rb_w32_closedir(DIR *dirp) { free(dirp->start); free(dirp->bits); free(dirp); } #if (defined _MT || defined __MSVCRT__) && !defined __BORLANDC__ #define MSVCRT_THREADS #endif #ifdef MSVCRT_THREADS # define MTHREAD_ONLY(x) x # define STHREAD_ONLY(x) #elif defined(__BORLANDC__) # define MTHREAD_ONLY(x) # define STHREAD_ONLY(x) #else # define MTHREAD_ONLY(x) # define STHREAD_ONLY(x) x #endif typedef struct { long 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 */ #ifdef MSVCRT_THREADS int lockinitflag; CRITICAL_SECTION lock; #endif #if _MSC_VER >= 1400 char textmode; char pipech2[2]; #endif } ioinfo; #if !defined _CRTIMP || defined __MINGW32__ #undef _CRTIMP #define _CRTIMP __declspec(dllimport) #endif #if !defined(__BORLANDC__) && !defined(_WIN32_WCE) EXTERN_C _CRTIMP ioinfo * __pioinfo[]; #define IOINFO_L2E 5 #define IOINFO_ARRAY_ELTS (1 << IOINFO_L2E) #define _pioinfo(i) (__pioinfo[i >> IOINFO_L2E] + (i & (IOINFO_ARRAY_ELTS - 1))) #define _osfhnd(i) (_pioinfo(i)->osfhnd) #define _osfile(i) (_pioinfo(i)->osfile) #define _pipech(i) (_pioinfo(i)->pipech) #define _set_osfhnd(fh, osfh) (void)(_osfhnd(fh) = osfh) #define _set_osflags(fh, flags) (_osfile(fh) = (flags)) #define FOPEN 0x01 /* file handle open */ #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 rb_w32_open_osfhandle(long 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((long)hF, 0); CloseHandle(hF); if (fh == -1) { errno = EMFILE; /* too many open files */ _doserrno = 0L; /* not an OS error */ } else { MTHREAD_ONLY(EnterCriticalSection(&(_pioinfo(fh)->lock))); /* 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 */ MTHREAD_ONLY(LeaveCriticalSection(&_pioinfo(fh)->lock)); } return fh; /* return handle */ } static void init_stdhandle(void) { if (fileno(stdin) < 0) { stdin->_file = 0; } if (fileno(stdout) < 0) { stdout->_file = 1; } if (fileno(stderr) < 0) { stderr->_file = 2; } } #else #define _set_osfhnd(fh, osfh) (void)((fh), (osfh)) #define _set_osflags(fh, flags) (void)((fh), (flags)) static void init_stdhandle(void) { } #endif #ifdef __BORLANDC__ static int rb_w32_open_osfhandle(long osfhandle, int flags) { int fd = _open_osfhandle(osfhandle, flags); if (fd == -1) { errno = EMFILE; /* too many open files */ _doserrno = 0L; /* not an OS error */ } return fd; } #endif #undef getsockopt static int is_socket(SOCKET sock) { char sockbuf[80]; int optlen; int retval; int result = TRUE; optlen = sizeof(sockbuf); RUBY_CRITICAL({ retval = getsockopt(sock, SOL_SOCKET, SO_TYPE, sockbuf, &optlen); if (retval == SOCKET_ERROR) { int iRet; iRet = WSAGetLastError(); if (iRet == WSAENOTSOCK || iRet == WSANOTINITIALISED) result = FALSE; } }); // // If we get here, then sock is actually a socket. // return result; } 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 char * rb_w32_strerror(int e) { static char buffer[512]; #if !defined __MINGW32__ extern int sys_nerr; #endif DWORD source = 0; char *p; #if defined __BORLANDC__ && defined ENOTEMPTY // _sys_errlist is broken switch (e) { case ENAMETOOLONG: return "Filename too long"; case ENOTEMPTY: return "Directory not empty"; } #endif if (e < 0 || e > sys_nerr) { if (e < 0) e = GetLastError(); if (FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, &source, e, 0, buffer, 512, NULL) == 0) { strcpy(buffer, "Unknown Error"); } } else { strncpy(buffer, strerror(e), sizeof(buffer)); buffer[sizeof(buffer) - 1] = 0; } for (p = buffer + strlen(buffer) - 1; buffer <= p; p--) { if (*p != '\r' && *p != '\n') break; *p = 0; } 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 rb_uid_t getuid(void) { return ROOT_UID; } rb_uid_t geteuid(void) { return ROOT_UID; } rb_gid_t getgid(void) { return ROOT_GID; } rb_gid_t getegid(void) { return ROOT_GID; } int setuid(rb_uid_t uid) { return (uid == ROOT_UID ? 0 : -1); } int setgid(rb_gid_t gid) { return (gid == ROOT_GID ? 0 : -1); } // // File system stuff // int ioctl(int i, int u, ...) { errno = EINVAL; return -1; } #undef FD_SET void rb_w32_fdset(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) { return; } } if (i == set->fd_count) { if (set->fd_count < FD_SETSIZE) { set->fd_array[i] = s; set->fd_count++; } } } #undef FD_CLR 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) { while (i < set->fd_count - 1) { set->fd_array[i] = set->fd_array[i + 1]; i++; } set->fd_count--; break; } } } #undef FD_ISSET 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; } // // Networking trampolines // These are used to avoid socket startup/shutdown overhead in case // the socket routines aren't used. // #undef select static int NtSocketsInitialized = 0; static int extract_fd(fd_set *dst, fd_set *src, int (*func)(SOCKET)) { int s = 0; if (!src || !dst) return 0; while (s < src->fd_count) { SOCKET fd = src->fd_array[s]; if (!func || (*func)(fd)) { /* move it to dst */ int d; for (d = 0; d < dst->fd_count; d++) { if (dst->fd_array[d] == fd) break; } if (d == dst->fd_count && dst->fd_count < FD_SETSIZE) { dst->fd_array[dst->fd_count++] = fd; } memmove( &src->fd_array[s], &src->fd_array[s+1], sizeof(src->fd_array[0]) * (--src->fd_count - s)); } else s++; } return dst->fd_count; } static int is_not_socket(SOCKET sock) { return !is_socket(sock); } static int is_pipe(SOCKET sock) /* DONT call this for SOCKET! it clains it is PIPE. */ { int ret; RUBY_CRITICAL( ret = (GetFileType((HANDLE)sock) == FILE_TYPE_PIPE) ); return ret; } 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; } static int is_console(SOCKET sock) /* DONT call this for SOCKET! */ { int ret; DWORD n = 0; INPUT_RECORD ir; RUBY_CRITICAL( ret = (PeekConsoleInput((HANDLE)sock, &ir, 1, &n)) ); return ret; } static int is_readable_console(SOCKET sock) /* call this for console only */ { int ret = 0; DWORD n = 0; INPUT_RECORD ir; RUBY_CRITICAL( if (PeekConsoleInput((HANDLE)sock, &ir, 1, &n) && n > 0) { if (ir.EventType == KEY_EVENT && ir.Event.KeyEvent.bKeyDown && ir.Event.KeyEvent.uChar.AsciiChar) { ret = 1; } else { ReadConsoleInput((HANDLE)sock, &ir, 1, &n); } } ); return ret; } static void catch_interrupt(void); 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 { #if !USE_INTERRUPT_WINSOCK int trap_immediate = rb_trap_immediate; #endif /* !USE_INTERRUPT_WINSOCK */ RUBY_CRITICAL( r = select(nfds, rd, wr, ex, timeout); if (r == SOCKET_ERROR) { errno = map_errno(WSAGetLastError()); r = -1; } ); #if !USE_INTERRUPT_WINSOCK rb_trap_immediate = trap_immediate; catch_interrupt(); #endif /* !USE_INTERRUPT_WINSOCK */ } return r; } static int subst(struct timeval *rest, const struct timeval *wait) { 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 1; } int WSAAPI rb_w32_select(int nfds, fd_set *rd, fd_set *wr, fd_set *ex, struct timeval *timeout) { int r; fd_set pipe_rd; fd_set cons_rd; fd_set else_rd; fd_set else_wr; #if USE_INTERRUPT_WINSOCK fd_set trap; int ret; #endif /* USE_INTERRUPT_WINSOCK */ int nonsock = 0; if (nfds < 0 || (timeout && (timeout->tv_sec < 0 || timeout->tv_usec < 0))) { errno = EINVAL; return -1; } if (!NtSocketsInitialized) { StartSockets(); } // 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. else_rd.fd_count = 0; nonsock += extract_fd(&else_rd, rd, is_not_socket); pipe_rd.fd_count = 0; extract_fd(&pipe_rd, &else_rd, is_pipe); // should not call is_pipe for socket cons_rd.fd_count = 0; extract_fd(&cons_rd, &else_rd, is_console); // ditto else_wr.fd_count = 0; nonsock += extract_fd(&else_wr, wr, is_not_socket); r = 0; if (rd && rd->fd_count > r) r = rd->fd_count; if (wr && wr->fd_count > r) r = wr->fd_count; if (ex && ex->fd_count > r) r = ex->fd_count; if (nfds > r) nfds = r; #if USE_INTERRUPT_WINSOCK if (ex) trap = *ex; else trap.fd_count = 0; if (trap.fd_count < FD_SETSIZE) trap.fd_array[trap.fd_count++] = (SOCKET)interrupted_event; // else unable to catch interrupt. ex = &trap; #endif /* USE_INTERRUPT_WINSOCK */ if (nonsock) { struct timeval rest; struct timeval wait; struct timeval zero; if (timeout) rest = *timeout; wait.tv_sec = 0; wait.tv_usec = 10 * 1000; // 10ms zero.tv_sec = 0; zero.tv_usec = 0; // 0ms do { // modifying {else,pipe,cons}_rd is safe because // if they are modified, function returns immediately. extract_fd(&else_rd, &pipe_rd, is_readable_pipe); extract_fd(&else_rd, &cons_rd, is_readable_console); if (else_rd.fd_count || else_wr.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 += extract_fd(rd, &else_rd, NULL); // move all r += extract_fd(wr, &else_wr, NULL); // move all break; } else { fd_set orig_rd; fd_set orig_wr; fd_set orig_ex; if (rd) orig_rd = *rd; if (wr) orig_wr = *wr; if (ex) orig_ex = *ex; r = do_select(nfds, rd, wr, ex, &wait); if (r != 0) break; // signaled or error if (rd) *rd = orig_rd; if (wr) *wr = orig_wr; if (ex) *ex = orig_ex; } } while (!timeout || subst(&rest, &wait)); } else r = do_select(nfds, rd, wr, ex, timeout); #if USE_INTERRUPT_WINSOCK RUBY_CRITICAL(ret = __WSAFDIsSet((SOCKET)interrupted_event, ex)); if (ret) { // In this case, we must restore all FDs. But this is only a test // code, so we think about that later. errno = EINTR; r = -1; } #endif /* USE_INTERRUPT_WINSOCK */ return r; } static void StartSockets(void) { WORD version; WSADATA retdata; // // initalize 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!\n"); if (LOBYTE(retdata.wVersion) != 2) rb_fatal("could not find version 2 of winsock dll\n"); atexit((void (*)(void)) WSACleanup); main_thread.handle = GetCurrentThreadHandle(); main_thread.id = GetCurrentThreadId(); interrupted_event = CreateSignal(); if (!interrupted_event) rb_fatal("Unable to create interrupt event!\n"); NtSocketsInitialized = 1; } #undef accept int WSAAPI rb_w32_accept(int s, struct sockaddr *addr, int *addrlen) { SOCKET r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = accept(TO_SOCKET(s), addr, addrlen); if (r == INVALID_SOCKET) { errno = map_errno(WSAGetLastError()); s = -1; } else { s = rb_w32_open_osfhandle(r, O_RDWR|O_BINARY); } }); return s; } #undef bind int WSAAPI rb_w32_bind(int s, const struct sockaddr *addr, int addrlen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = bind(TO_SOCKET(s), addr, addrlen); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef connect int WSAAPI rb_w32_connect(int s, const struct sockaddr *addr, int addrlen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = connect(TO_SOCKET(s), addr, addrlen); if (r == SOCKET_ERROR) { r = WSAGetLastError(); if (r != WSAEWOULDBLOCK) { errno = map_errno(r); } else { errno = EINPROGRESS; r = -1; } } }); return r; } #undef getpeername int WSAAPI rb_w32_getpeername(int s, struct sockaddr *addr, int *addrlen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = getpeername(TO_SOCKET(s), addr, addrlen); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef getsockname int WSAAPI rb_w32_getsockname(int s, struct sockaddr *addr, int *addrlen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = getsockname(TO_SOCKET(s), addr, addrlen); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } int WSAAPI rb_w32_getsockopt(int s, int level, int optname, char *optval, int *optlen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = getsockopt(TO_SOCKET(s), level, optname, optval, optlen); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef ioctlsocket int WSAAPI rb_w32_ioctlsocket(int s, long cmd, u_long *argp) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = ioctlsocket(TO_SOCKET(s), cmd, argp); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef listen int WSAAPI rb_w32_listen(int s, int backlog) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = listen(TO_SOCKET(s), backlog); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef recv int WSAAPI rb_w32_recv(int s, char *buf, int len, int flags) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = recv(TO_SOCKET(s), buf, len, flags); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef recvfrom int WSAAPI rb_w32_recvfrom(int s, char *buf, int len, int flags, struct sockaddr *from, int *fromlen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = recvfrom(TO_SOCKET(s), buf, len, flags, from, fromlen); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef send int WSAAPI rb_w32_send(int s, const char *buf, int len, int flags) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = send(TO_SOCKET(s), buf, len, flags); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef sendto int WSAAPI rb_w32_sendto(int s, const char *buf, int len, int flags, const struct sockaddr *to, int tolen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = sendto(TO_SOCKET(s), buf, len, flags, to, tolen); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef setsockopt int WSAAPI rb_w32_setsockopt(int s, int level, int optname, const char *optval, int optlen) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = setsockopt(TO_SOCKET(s), level, optname, optval, optlen); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef shutdown int WSAAPI rb_w32_shutdown(int s, int how) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = shutdown(TO_SOCKET(s), how); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } 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); 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, 0); break; } } free(proto_buffers); } } return out; } #undef socket int WSAAPI rb_w32_socket(int af, int type, int protocol) { SOCKET s; int fd; if (!NtSocketsInitialized) { StartSockets(); } 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); } }); return fd; } #undef gethostbyaddr struct hostent * WSAAPI rb_w32_gethostbyaddr(const char *addr, int len, int type) { struct hostent *r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = gethostbyaddr(addr, len, type); if (r == NULL) errno = map_errno(WSAGetLastError()); }); return r; } #undef gethostbyname struct hostent * WSAAPI rb_w32_gethostbyname(const char *name) { struct hostent *r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = gethostbyname(name); if (r == NULL) errno = map_errno(WSAGetLastError()); }); return r; } #undef gethostname int WSAAPI rb_w32_gethostname(char *name, int len) { int r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = gethostname(name, len); if (r == SOCKET_ERROR) errno = map_errno(WSAGetLastError()); }); return r; } #undef getprotobyname struct protoent * WSAAPI rb_w32_getprotobyname(const char *name) { struct protoent *r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = getprotobyname(name); if (r == NULL) errno = map_errno(WSAGetLastError()); }); return r; } #undef getprotobynumber struct protoent * WSAAPI rb_w32_getprotobynumber(int num) { struct protoent *r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = getprotobynumber(num); if (r == NULL) errno = map_errno(WSAGetLastError()); }); return r; } #undef getservbyname struct servent * WSAAPI rb_w32_getservbyname(const char *name, const char *proto) { struct servent *r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = getservbyname(name, proto); if (r == NULL) errno = map_errno(WSAGetLastError()); }); return r; } #undef getservbyport struct servent * WSAAPI rb_w32_getservbyport(int port, const char *proto) { struct servent *r; if (!NtSocketsInitialized) { StartSockets(); } RUBY_CRITICAL({ r = getservbyport(port, proto); if (r == NULL) errno = map_errno(WSAGetLastError()); }); return r; } static int socketpair_internal(int af, int type, int protocol, SOCKET *sv) { const char *localhost = NULL; SOCKET svr = INVALID_SOCKET, r = INVALID_SOCKET, w = INVALID_SOCKET; struct sockaddr_in sock_in4; #ifdef INET6 struct sockaddr_in6 sock_in6; #endif struct sockaddr *addr; int ret = -1; int len; if (!NtSocketsInitialized) { StartSockets(); } 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 default: errno = EAFNOSUPPORT; return -1; } if (type != SOCK_STREAM) { errno = EPROTOTYPE; return -1; } 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; 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); }); return ret; } int rb_w32_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); sv[1] = rb_w32_open_osfhandle(pair[1], O_RDWR|O_BINARY); return 0; } // // 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) {} int fcntl(int fd, int cmd, ...) { SOCKET sock = TO_SOCKET(fd); va_list va; int arg; int ret; u_long ioctlArg; if (!is_socket(sock)) { errno = EBADF; return -1; } if (cmd != F_SETFL) { errno = EINVAL; return -1; } va_start(va, cmd); arg = va_arg(va, int); va_end(va); if (arg & O_NONBLOCK) { ioctlArg = 1; } else { ioctlArg = 0; } RUBY_CRITICAL({ ret = ioctlsocket(sock, FIONBIO, &ioctlArg); if (ret == -1) { errno = map_errno(WSAGetLastError()); } }); return ret; } #ifndef WNOHANG #define WNOHANG -1 #endif 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 occured, return immediatly. */ err = GetLastError(); if (err == ERROR_INVALID_PARAMETER) errno = ECHILD; else errno = map_errno(GetLastError()); CloseChildHandle(child); return -1; } if (exitcode != STILL_ACTIVE) { /* If already died, return immediatly. */ rb_pid_t pid = child->pid; CloseChildHandle(child); if (stat_loc) *stat_loc = exitcode << 8; return pid; } return 0; } rb_pid_t waitpid (rb_pid_t pid, int *stat_loc, int options) { DWORD timeout; if (options == WNOHANG) { timeout = 0; } else { timeout = INFINITE; } if (pid == -1) { int count = 0; DWORD ret; HANDLE events[MAXCHILDNUM + 1]; 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; } events[count] = interrupted_event; ret = WaitForMultipleEvents(count + 1, events, FALSE, timeout, TRUE); if (ret == WAIT_TIMEOUT) return 0; if ((ret -= WAIT_OBJECT_0) == count) { ResetSignal(interrupted_event); errno = EINTR; return -1; } if (ret > count) { errno = map_errno(GetLastError()); return -1; } return poll_child_status(ChildRecord + ret, stat_loc); } else { struct ChildRecord* child = FindChildSlot(pid); if (!child) { errno = ECHILD; return -1; } while (!(pid = poll_child_status(child, stat_loc))) { /* wait... */ if (wait_events(child->hProcess, timeout) != WAIT_OBJECT_0) { /* still active */ pid = 0; break; } } } return pid; } #include int _cdecl gettimeofday(struct timeval *tv, struct timezone *tz) { SYSTEMTIME st; time_t t; struct tm tm; GetLocalTime(&st); tm.tm_sec = st.wSecond; tm.tm_min = st.wMinute; tm.tm_hour = st.wHour; tm.tm_mday = st.wDay; tm.tm_mon = st.wMonth - 1; tm.tm_year = st.wYear - 1900; tm.tm_isdst = -1; t = mktime(&tm); tv->tv_sec = t; tv->tv_usec = st.wMilliseconds * 1000; return 0; } char * rb_w32_getcwd(char *buffer, int size) { int length; char *bp; #undef getcwd #ifndef __BORLANDC__ #define getcwd _getcwd #endif if (getcwd(buffer, size) == NULL) { return NULL; } length = strlen(buffer); if (length >= size) { return NULL; } for (bp = buffer; *bp != '\0'; bp = CharNext(bp)) { if (*bp == '\\') { *bp = '/'; } } return buffer; } int chown(const char *path, int owner, int group) { return 0; } int kill(int pid, int sig) { int ret = 0; DWORD err; if (pid <= 0) { errno = EINVAL; return -1; } if (IsWin95()) pid = -pid; 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({ if (!GenerateConsoleCtrlEvent(CTRL_C_EVENT, (DWORD)pid)) { if ((err = GetLastError()) == 0) errno = EPERM; else errno = map_errno(GetLastError()); ret = -1; } }); break; case SIGKILL: RUBY_CRITICAL({ HANDLE hProc = OpenProcess(PROCESS_TERMINATE, FALSE, (DWORD)pid); if (hProc == NULL || hProc == INVALID_HANDLE_VALUE) { if (GetLastError() == ERROR_INVALID_PARAMETER) { errno = ESRCH; } else { errno = EPERM; } ret = -1; } else { if (!TerminateProcess(hProc, 0)) { errno = EPERM; ret = -1; } CloseHandle(hProc); } }); break; default: errno = EINVAL; ret = -1; break; } return ret; } int link(const char *from, const char *to) { static BOOL (WINAPI *pCreateHardLink)(LPCTSTR, LPCTSTR, LPSECURITY_ATTRIBUTES) = NULL; static int myerrno = 0; if (!pCreateHardLink && !myerrno) { HANDLE hKernel; hKernel = GetModuleHandle("kernel32.dll"); if (hKernel) { pCreateHardLink = (BOOL (WINAPI *)(LPCTSTR, LPCTSTR, LPSECURITY_ATTRIBUTES))GetProcAddress(hKernel, "CreateHardLinkA"); if (!pCreateHardLink) { rb_notimplement(); } } else { myerrno = map_errno(GetLastError()); } } if (!pCreateHardLink) { errno = myerrno; return -1; } if (!pCreateHardLink(to, from, NULL)) { errno = map_errno(GetLastError()); return -1; } return 0; } int wait(int *status) { return waitpid(-1, status, 0); } char * rb_w32_getenv(const char *name) { static char *curitem = NULL; static DWORD curlen = 0; DWORD needlen; if (curitem == NULL || curlen == 0) { curlen = 512; curitem = ALLOC_N(char, curlen); } needlen = GetEnvironmentVariable(name, curitem, curlen); if (needlen != 0) { while (needlen > curlen) { REALLOC_N(curitem, char, needlen); curlen = needlen; needlen = GetEnvironmentVariable(name, curitem, curlen); } } else { return NULL; } return curitem; } int rb_w32_rename(const char *oldpath, const char *newpath) { int res = 0; int oldatts; int newatts; oldatts = GetFileAttributes(oldpath); newatts = GetFileAttributes(newpath); if (oldatts == -1) { errno = map_errno(GetLastError()); return -1; } RUBY_CRITICAL({ if (newatts != -1 && newatts & FILE_ATTRIBUTE_READONLY) SetFileAttributesA(newpath, newatts & ~ FILE_ATTRIBUTE_READONLY); if (!MoveFile(oldpath, newpath)) res = -1; if (res) { switch (GetLastError()) { case ERROR_ALREADY_EXISTS: case ERROR_FILE_EXISTS: if (IsWinNT()) { if (MoveFileEx(oldpath, newpath, MOVEFILE_REPLACE_EXISTING)) res = 0; } else { for (;;) { if (!DeleteFile(newpath) && GetLastError() != ERROR_FILE_NOT_FOUND) break; else if (MoveFile(oldpath, newpath)) { res = 0; break; } } } } } if (res) errno = map_errno(GetLastError()); else SetFileAttributes(newpath, oldatts); }); return res; } static int isUNCRoot(const char *path) { if (path[0] == '\\' && path[1] == '\\') { const char *p; for (p = path + 2; *p; p = CharNext(p)) { if (*p == '\\') break; } if (p[0] && p[1]) { for (p++; *p; p = CharNext(p)) { if (*p == '\\') break; } if (!p[0] || !p[1] || (p[1] == '.' && !p[2])) return 1; } } return 0; } #ifdef __BORLANDC__ #undef fstat int rb_w32_fstat(int fd, struct stat *st) { BY_HANDLE_FILE_INFORMATION info; int ret = fstat(fd, st); if (ret) return ret; st->st_mode &= ~(S_IWGRP | S_IWOTH); if (GetFileInformationByHandle((HANDLE)_get_osfhandle(fd), &info) && !(info.dwFileAttributes & FILE_ATTRIBUTE_READONLY)) { st->st_mode |= S_IWUSR; } return ret; } #endif int rb_w32_stat(const char *path, struct stat *st) { const char *p; char *buf1, *s, *end; int len; int ret; if (!path || !st) { errno = EFAULT; return -1; } buf1 = ALLOCA_N(char, strlen(path) + 2); for (p = path, s = buf1; *p; p++, s++) { if (*p == '/') *s = '\\'; else *s = *p; } *s = '\0'; len = s - buf1; if (!len || '\"' == *(--s)) { errno = ENOENT; return -1; } end = CharPrev(buf1, buf1 + len); if (isUNCRoot(buf1)) { if (*end == '.') *end = '\0'; else if (*end != '\\') strcat(buf1, "\\"); } else if (*end == '\\' || (buf1 + 1 == end && *end == ':')) strcat(buf1, "."); ret = stat(buf1, st); if (ret == 0) { st->st_mode &= ~(S_IWGRP | S_IWOTH); } return ret; } 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; } 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; } #undef Sleep #define yield_once() Sleep(0) #define yield_until(condition) do yield_once(); while (!(condition)) static DWORD wait_events(HANDLE event, DWORD timeout) { HANDLE events[2]; int count = 0; DWORD ret; if (event) { events[count++] = event; } events[count++] = interrupted_event; ret = WaitForMultipleEvents(count, events, FALSE, timeout, TRUE); if (ret == WAIT_OBJECT_0 + count - 1) { ResetSignal(interrupted_event); errno = EINTR; } return ret; } static CRITICAL_SECTION * system_state(void) { static int initialized = 0; static CRITICAL_SECTION syssect; if (!initialized) { InitializeCriticalSection(&syssect); initialized = 1; } return &syssect; } static LONG flag_interrupt = -1; static volatile DWORD tlsi_interrupt = TLS_OUT_OF_INDEXES; void rb_w32_enter_critical(void) { if (IsWinNT()) { EnterCriticalSection(system_state()); return; } if (tlsi_interrupt == TLS_OUT_OF_INDEXES) { tlsi_interrupt = TlsAlloc(); } { DWORD ti = (DWORD)TlsGetValue(tlsi_interrupt); while (InterlockedIncrement(&flag_interrupt) > 0 && !ti) { InterlockedDecrement(&flag_interrupt); Sleep(1); } TlsSetValue(tlsi_interrupt, (PVOID)++ti); } } void rb_w32_leave_critical(void) { if (IsWinNT()) { LeaveCriticalSection(system_state()); return; } InterlockedDecrement(&flag_interrupt); TlsSetValue(tlsi_interrupt, (PVOID)((DWORD)TlsGetValue(tlsi_interrupt) - 1)); } struct handler_arg_t { void (*handler)(int); int arg; int status; int finished; HANDLE handshake; }; static void rb_w32_call_handler(struct handler_arg_t* h) { int status; RUBY_CRITICAL(rb_protect((VALUE (*)(VALUE))h->handler, (VALUE)h->arg, &h->status); status = h->status; SetEvent(h->handshake)); if (status) { rb_jump_tag(status); } h->finished = 1; yield_until(0); } static struct handler_arg_t * setup_handler(struct handler_arg_t *harg, int arg, void (*handler)(int), HANDLE handshake) { harg->handler = handler; harg->arg = arg; harg->status = 0; harg->finished = 0; harg->handshake = handshake; return harg; } static void setup_call(CONTEXT* ctx, struct handler_arg_t *harg) { #ifdef _M_IX86 DWORD *esp = (DWORD *)ctx->Esp; *--esp = (DWORD)harg; *--esp = ctx->Eip; ctx->Esp = (DWORD)esp; ctx->Eip = (DWORD)rb_w32_call_handler; #else #ifndef _WIN32_WCE #error unsupported processor #endif #endif } int rb_w32_main_context(int arg, void (*handler)(int)) { static HANDLE interrupt_done = NULL; struct handler_arg_t harg; CONTEXT ctx_orig; HANDLE current_thread = GetCurrentThread(); int old_priority = GetThreadPriority(current_thread); if (GetCurrentThreadId() == main_thread.id) return FALSE; SetSignal(interrupted_event); RUBY_CRITICAL({ /* the main thread must be in user state */ CONTEXT ctx; SuspendThread(main_thread.handle); SetThreadPriority(current_thread, GetThreadPriority(main_thread.handle)); ZeroMemory(&ctx, sizeof(CONTEXT)); ctx.ContextFlags = CONTEXT_FULL | CONTEXT_FLOATING_POINT; GetThreadContext(main_thread.handle, &ctx); ctx_orig = ctx; /* handler context setup */ if (!interrupt_done) { interrupt_done = CreateEvent(NULL, FALSE, FALSE, NULL); /* anonymous one-shot event */ } else { ResetEvent(interrupt_done); } setup_call(&ctx, setup_handler(&harg, arg, handler, interrupt_done)); ctx.ContextFlags = CONTEXT_CONTROL; SetThreadContext(main_thread.handle, &ctx); ResumeThread(main_thread.handle); }); /* give a chance to the main thread */ yield_once(); WaitForSingleObject(interrupt_done, INFINITE); /* handshaking */ if (!harg.status) { /* no exceptions raised, restore old context. */ RUBY_CRITICAL({ /* ensure the main thread is in user state. */ yield_until(harg.finished); SuspendThread(main_thread.handle); ctx_orig.ContextFlags = CONTEXT_FULL | CONTEXT_FLOATING_POINT; SetThreadContext(main_thread.handle, &ctx_orig); ResumeThread(main_thread.handle); }); } /* otherwise leave the main thread raised */ SetThreadPriority(current_thread, old_priority); return TRUE; } int rb_w32_sleep(unsigned long msec) { return rb_w32_Sleep(msec); } int WINAPI rb_w32_Sleep(unsigned long msec) { DWORD ret; RUBY_CRITICAL(ret = wait_events(NULL, msec)); yield_once(); CHECK_INTS; return ret != WAIT_TIMEOUT; } static void catch_interrupt(void) { yield_once(); RUBY_CRITICAL(wait_events(NULL, 0)); CHECK_INTS; } #if defined __BORLANDC__ || defined _WIN32_WCE #undef read int read(int fd, void *buf, size_t size) { int trap_immediate = rb_trap_immediate; int ret = _read(fd, buf, size); if ((ret < 0) && (errno == EPIPE)) { errno = 0; ret = 0; } rb_trap_immediate = trap_immediate; catch_interrupt(); return ret; } #endif #undef fgetc int rb_w32_getc(FILE* stream) { int c, trap_immediate = rb_trap_immediate; #ifndef _WIN32_WCE if (enough_to_get(stream->FILE_COUNT)) { c = (unsigned char)*stream->FILE_READPTR++; rb_trap_immediate = trap_immediate; } else #endif { c = _filbuf(stream); #if defined __BORLANDC__ || defined _WIN32_WCE if ((c == EOF) && (errno == EPIPE)) { clearerr(stream); } #endif rb_trap_immediate = trap_immediate; catch_interrupt(); } return c; } #undef fputc int rb_w32_putc(int c, FILE* stream) { int trap_immediate = rb_trap_immediate; #ifndef _WIN32_WCE if (enough_to_put(stream->FILE_COUNT)) { c = (unsigned char)(*stream->FILE_READPTR++ = (char)c); rb_trap_immediate = trap_immediate; } else #endif { c = _flsbuf(c, stream); rb_trap_immediate = trap_immediate; catch_interrupt(); } return c; } struct asynchronous_arg_t { /* output field */ void* stackaddr; int errnum; /* input field */ VALUE (*func)(VALUE self, int argc, VALUE* argv); VALUE self; int argc; VALUE* argv; }; 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; } VALUE rb_w32_asynchronize(asynchronous_func_t func, VALUE self, int argc, VALUE* argv, VALUE 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 (wait_events(thr, 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:%d", GetLastError()); } if (interrupted) { CHECK_INTS; } return val; } char ** rb_w32_get_environ(void) { char *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. * (U.N. 2001-11-15) */ envtop = GetEnvironmentStrings(); for (env = envtop, num = 0; *env; env += strlen(env) + 1) if (*env != '=') num++; myenvtop = ALLOC_N(char*, num + 1); for (env = envtop, myenv = myenvtop; *env; env += strlen(env) + 1) { if (*env != '=') { *myenv = ALLOC_N(char, strlen(env) + 1); strcpy(*myenv, env); myenv++; } } *myenv = NULL; FreeEnvironmentStrings(envtop); return myenvtop; } void rb_w32_free_environ(char **env) { char **t = env; while (*t) free(*t++); free(env); } #undef getpid rb_pid_t rb_w32_getpid(void) { rb_pid_t pid; pid = getpid(); if (IsWin95()) pid = -pid; return pid; } int rb_w32_fclose(FILE *fp) { int fd = fileno(fp); SOCKET sock = TO_SOCKET(fd); 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); if (closesocket(sock) == SOCKET_ERROR) { errno = map_errno(WSAGetLastError()); return -1; } return 0; } int rb_w32_close(int fd) { SOCKET sock = TO_SOCKET(fd); if (!is_socket(sock)) { UnlockFile((HANDLE)sock, 0, 0, LK_LEN, LK_LEN); return _close(fd); } _set_osfhnd(fd, (SOCKET)INVALID_HANDLE_VALUE); _close(fd); if (closesocket(sock) == SOCKET_ERROR) { errno = map_errno(WSAGetLastError()); return -1; } return 0; } static int unixtime_to_filetime(time_t time, FILETIME *ft) { struct tm *tm; SYSTEMTIME st; FILETIME lt; tm = localtime(&time); st.wYear = tm->tm_year + 1900; st.wMonth = tm->tm_mon + 1; st.wDayOfWeek = tm->tm_wday; st.wDay = tm->tm_mday; st.wHour = tm->tm_hour; st.wMinute = tm->tm_min; st.wSecond = tm->tm_sec; st.wMilliseconds = 0; if (!SystemTimeToFileTime(&st, <) || !LocalFileTimeToFileTime(<, ft)) { errno = map_errno(GetLastError()); return -1; } return 0; } int rb_w32_utime(const char *path, const struct utimbuf *times) { HANDLE hFile; SYSTEMTIME st; FILETIME atime, mtime; struct tm *tm; struct stat stat; int ret = 0; if (rb_w32_stat(path, &stat)) { return -1; } if (unixtime_to_filetime(times->actime, &atime)) { return -1; } if (unixtime_to_filetime(times->modtime, &mtime)) { return -1; } RUBY_CRITICAL({ hFile = CreateFile(path, GENERIC_WRITE, 0, 0, OPEN_EXISTING, IsWin95() ? 0 : FILE_FLAG_BACKUP_SEMANTICS, 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); } }); return ret; } int rb_w32_vsnprintf(char *buf, size_t size, const char *format, va_list va) { int ret = _vsnprintf(buf, size, format, va); if (size > 0) buf[size - 1] = 0; return ret; } int rb_w32_snprintf(char *buf, size_t size, const char *format, ...) { int ret; va_list va; va_start(va, format); ret = vsnprintf(buf, size, format, va); va_end(va); return ret; } int rb_w32_mkdir(const char *path, int mode) { int ret = -1; RUBY_CRITICAL(do { if (CreateDirectory(path, NULL) == FALSE) { errno = map_errno(GetLastError()); break; } if (chmod(path, mode) == -1) { RemoveDirectory(path); break; } ret = 0; } while (0)); return ret; } int rb_w32_rmdir(const char *path) { int ret = 0; RUBY_CRITICAL({ const DWORD attr = GetFileAttributes(path); if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY)) { SetFileAttributes(path, attr & ~FILE_ATTRIBUTE_READONLY); } if (RemoveDirectory(path) == FALSE) { errno = map_errno(GetLastError()); ret = -1; if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY)) { SetFileAttributes(path, attr); } } }); return ret; } int rb_w32_unlink(const char *path) { int ret = 0; RUBY_CRITICAL({ const DWORD attr = GetFileAttributes(path); if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY)) { SetFileAttributes(path, attr & ~FILE_ATTRIBUTE_READONLY); } if (DeleteFile(path) == FALSE) { errno = map_errno(GetLastError()); ret = -1; if (attr != (DWORD)-1 && (attr & FILE_ATTRIBUTE_READONLY)) { SetFileAttributes(path, attr); } } }); return ret; } #if !defined(__BORLANDC__) && !defined(_WIN32_WCE) int rb_w32_isatty(int fd) { if (!(_osfile(fd) & FOPEN)) { errno = EBADF; return 0; } if (!(_osfile(fd) & FDEV)) { errno = ENOTTY; return 0; } return 1; } #endif // // Fix bcc32's stdio bug // #ifdef __BORLANDC__ static int too_many_files(void) { FILE *f; for (f = _streams; f < _streams + _nfile; f++) { if (f->fd < 0) return 0; } return 1; } #undef fopen FILE * rb_w32_fopen(const char *path, const char *mode) { FILE *f = (errno = 0, fopen(path, mode)); if (f == NULL && errno == 0) { if (too_many_files()) errno = EMFILE; } return f; } FILE * rb_w32_fdopen(int handle, const char *type) { FILE *f = (errno = 0, _fdopen(handle, (char *)type)); if (f == NULL && errno == 0) { if (handle < 0) errno = EBADF; else if (too_many_files()) errno = EMFILE; } return f; } FILE * rb_w32_fsopen(const char *path, const char *mode, int shflags) { FILE *f = (errno = 0, _fsopen(path, mode, shflags)); if (f == NULL && errno == 0) { if (too_many_files()) errno = EMFILE; } return f; } #endif