This commit is contained in:
Johannes Schindelin 2023-05-20 15:50:26 +00:00 коммит произвёл GitHub
Родитель 98346fc3f9 eeffc87318
Коммит 59bc9667c8
Не найден ключ, соответствующий данной подписи
Идентификатор ключа GPG: 4AEE18F83AFDEB23
3 изменённых файлов: 419 добавлений и 8 удалений

Просмотреть файл

@ -472,6 +472,11 @@ include shared.mak
#
# CURL_LDFLAGS=-lcurl
#
# Define LAZYLOAD_LIBCURL to dynamically load the libcurl; This can be useful
# if Multiple libcurl versions exist (with different file names) that link to
# various SSL/TLS backends, to support the `http.sslBackend` runtime switch in
# such a scenario.
#
# === Optional library: libpcre2 ===
#
# Define USE_LIBPCRE if you have and want to use libpcre. Various
@ -1613,10 +1618,23 @@ else
CURL_LIBCURL =
endif
ifndef CURL_LDFLAGS
CURL_LDFLAGS = $(eval CURL_LDFLAGS := $$(shell $$(CURL_CONFIG) --libs))$(CURL_LDFLAGS)
ifdef LAZYLOAD_LIBCURL
LAZYLOAD_LIBCURL_OBJ = compat/lazyload-curl.o
OBJECTS += $(LAZYLOAD_LIBCURL_OBJ)
# The `CURL_STATICLIB` constant must be defined to avoid seeing the functions
# declared as DLL imports
CURL_CFLAGS = -DCURL_STATICLIB
ifneq ($(uname_S),MINGW)
ifneq ($(uname_S),Windows)
CURL_LIBCURL = -ldl
endif
endif
else
ifndef CURL_LDFLAGS
CURL_LDFLAGS = $(eval CURL_LDFLAGS := $$(shell $$(CURL_CONFIG) --libs))$(CURL_LDFLAGS)
endif
CURL_LIBCURL += $(CURL_LDFLAGS)
endif
CURL_LIBCURL += $(CURL_LDFLAGS)
ifndef CURL_CFLAGS
CURL_CFLAGS = $(eval CURL_CFLAGS := $$(shell $$(CURL_CONFIG) --cflags))$(CURL_CFLAGS)
@ -1640,7 +1658,7 @@ else
endif
ifdef USE_CURL_FOR_IMAP_SEND
BASIC_CFLAGS += -DUSE_CURL_FOR_IMAP_SEND
IMAP_SEND_BUILDDEPS = http.o
IMAP_SEND_BUILDDEPS = http.o $(LAZYLOAD_LIBCURL_OBJ)
IMAP_SEND_LDFLAGS += $(CURL_LIBCURL)
endif
ifndef NO_EXPAT
@ -2854,10 +2872,10 @@ git-imap-send$X: imap-send.o $(IMAP_SEND_BUILDDEPS) GIT-LDFLAGS $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(IMAP_SEND_LDFLAGS) $(LIBS)
git-http-fetch$X: http.o http-walker.o http-fetch.o GIT-LDFLAGS $(GITLIBS)
git-http-fetch$X: http.o http-walker.o http-fetch.o $(LAZYLOAD_LIBCURL_OBJ) GIT-LDFLAGS $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(CURL_LIBCURL) $(LIBS)
git-http-push$X: http.o http-push.o GIT-LDFLAGS $(GITLIBS)
git-http-push$X: http.o http-push.o $(LAZYLOAD_LIBCURL_OBJ) GIT-LDFLAGS $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(CURL_LIBCURL) $(EXPAT_LIBEXPAT) $(LIBS)
@ -2867,7 +2885,7 @@ $(REMOTE_CURL_ALIASES): $(REMOTE_CURL_PRIMARY)
ln -s $< $@ 2>/dev/null || \
cp $< $@
$(REMOTE_CURL_PRIMARY): remote-curl.o http.o http-walker.o GIT-LDFLAGS $(GITLIBS)
$(REMOTE_CURL_PRIMARY): remote-curl.o http.o http-walker.o $(LAZYLOAD_LIBCURL_OBJ) GIT-LDFLAGS $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(CURL_LIBCURL) $(EXPAT_LIBEXPAT) $(LIBS)
@ -2875,7 +2893,7 @@ scalar$X: $(SCALAR_OBJS) GIT-LDFLAGS $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) \
$(filter %.o,$^) $(LIBS)
git-gvfs-helper$X: gvfs-helper.o http.o GIT-LDFLAGS $(GITLIBS)
git-gvfs-helper$X: gvfs-helper.o http.o $(LAZYLOAD_LIBCURL_OBJ) GIT-LDFLAGS $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(CURL_LIBCURL) $(EXPAT_LIBEXPAT) $(LIBS)

392
compat/lazyload-curl.c Normal file
Просмотреть файл

@ -0,0 +1,392 @@
#include "../git-compat-util.h"
#include "../git-curl-compat.h"
#ifndef WIN32
#include <dlfcn.h>
#endif
/*
* The ABI version of libcurl is encoded in its shared libraries' file names.
* This ABI version has not changed since October 2006 and is unlikely to be
* changed in the future. See https://curl.se/libcurl/abi.html for details.
*/
#define LIBCURL_ABI_VERSION "4"
typedef void (*func_t)(void);
#ifndef WIN32
#ifdef __APPLE__
#define LIBCURL_FILE_NAME(base) base "." LIBCURL_ABI_VERSION ".dylib"
#else
#define LIBCURL_FILE_NAME(base) base ".so." LIBCURL_ABI_VERSION
#endif
static void *load_library(const char *name)
{
return dlopen(name, RTLD_LAZY);
}
static func_t load_function(void *handle, const char *name)
{
/*
* Casting the return value of `dlsym()` to a function pointer is
* explicitly allowed in recent POSIX standards, but GCC complains
* about this in pedantic mode nevertheless. For more about this issue,
* see https://stackoverflow.com/q/31526876/1860823 and
* http://stackoverflow.com/a/36385690/1905491.
*/
func_t f;
*(void **)&f = dlsym(handle, name);
return f;
}
#else
#define LIBCURL_FILE_NAME(base) base "-" LIBCURL_ABI_VERSION ".dll"
static void *load_library(const char *name)
{
size_t name_size = strlen(name) + 1;
const char *path = getenv("PATH");
char dll_path[MAX_PATH];
while (path && *path) {
const char *sep = strchrnul(path, ';');
size_t len = sep - path;
if (len && len + name_size < sizeof(dll_path)) {
memcpy(dll_path, path, len);
dll_path[len] = '/';
memcpy(dll_path + len + 1, name, name_size);
if (!access(dll_path, R_OK))
return (void *)LoadLibraryExA(dll_path, NULL, 0);
}
path = *sep ? sep + 1 : NULL;
}
return NULL;
}
static func_t load_function(void *handle, const char *name)
{
return (func_t)GetProcAddress((HANDLE)handle, name);
}
#endif
typedef char *(*curl_easy_escape_type)(CURL *handle, const char *string, int length);
static curl_easy_escape_type curl_easy_escape_func;
typedef void (*curl_free_type)(void *p);
static curl_free_type curl_free_func;
typedef CURLcode (*curl_global_init_type)(long flags);
static curl_global_init_type curl_global_init_func;
typedef CURLsslset (*curl_global_sslset_type)(curl_sslbackend id, const char *name, const curl_ssl_backend ***avail);
static curl_global_sslset_type curl_global_sslset_func;
typedef void (*curl_global_cleanup_type)(void);
static curl_global_cleanup_type curl_global_cleanup_func;
typedef struct curl_slist *(*curl_slist_append_type)(struct curl_slist *list, const char *data);
static curl_slist_append_type curl_slist_append_func;
typedef void (*curl_slist_free_all_type)(struct curl_slist *list);
static curl_slist_free_all_type curl_slist_free_all_func;
typedef const char *(*curl_easy_strerror_type)(CURLcode error);
static curl_easy_strerror_type curl_easy_strerror_func;
typedef CURLM *(*curl_multi_init_type)(void);
static curl_multi_init_type curl_multi_init_func;
typedef CURLMcode (*curl_multi_add_handle_type)(CURLM *multi_handle, CURL *curl_handle);
static curl_multi_add_handle_type curl_multi_add_handle_func;
typedef CURLMcode (*curl_multi_remove_handle_type)(CURLM *multi_handle, CURL *curl_handle);
static curl_multi_remove_handle_type curl_multi_remove_handle_func;
typedef CURLMcode (*curl_multi_fdset_type)(CURLM *multi_handle, fd_set *read_fd_set, fd_set *write_fd_set, fd_set *exc_fd_set, int *max_fd);
static curl_multi_fdset_type curl_multi_fdset_func;
typedef CURLMcode (*curl_multi_perform_type)(CURLM *multi_handle, int *running_handles);
static curl_multi_perform_type curl_multi_perform_func;
typedef CURLMcode (*curl_multi_cleanup_type)(CURLM *multi_handle);
static curl_multi_cleanup_type curl_multi_cleanup_func;
typedef CURLMsg *(*curl_multi_info_read_type)(CURLM *multi_handle, int *msgs_in_queue);
static curl_multi_info_read_type curl_multi_info_read_func;
typedef const char *(*curl_multi_strerror_type)(CURLMcode error);
static curl_multi_strerror_type curl_multi_strerror_func;
typedef CURLMcode (*curl_multi_timeout_type)(CURLM *multi_handle, long *milliseconds);
static curl_multi_timeout_type curl_multi_timeout_func;
typedef CURL *(*curl_easy_init_type)(void);
static curl_easy_init_type curl_easy_init_func;
typedef CURLcode (*curl_easy_perform_type)(CURL *curl);
static curl_easy_perform_type curl_easy_perform_func;
typedef void (*curl_easy_cleanup_type)(CURL *curl);
static curl_easy_cleanup_type curl_easy_cleanup_func;
typedef CURL *(*curl_easy_duphandle_type)(CURL *curl);
static curl_easy_duphandle_type curl_easy_duphandle_func;
typedef CURLcode (*curl_easy_getinfo_long_type)(CURL *curl, CURLINFO info, long *value);
static curl_easy_getinfo_long_type curl_easy_getinfo_long_func;
typedef CURLcode (*curl_easy_getinfo_pointer_type)(CURL *curl, CURLINFO info, void **value);
static curl_easy_getinfo_pointer_type curl_easy_getinfo_pointer_func;
typedef CURLcode (*curl_easy_getinfo_off_t_type)(CURL *curl, CURLINFO info, curl_off_t *value);
static curl_easy_getinfo_off_t_type curl_easy_getinfo_off_t_func;
typedef CURLcode (*curl_easy_setopt_long_type)(CURL *curl, CURLoption opt, long value);
static curl_easy_setopt_long_type curl_easy_setopt_long_func;
typedef CURLcode (*curl_easy_setopt_pointer_type)(CURL *curl, CURLoption opt, void *value);
static curl_easy_setopt_pointer_type curl_easy_setopt_pointer_func;
typedef CURLcode (*curl_easy_setopt_off_t_type)(CURL *curl, CURLoption opt, curl_off_t value);
static curl_easy_setopt_off_t_type curl_easy_setopt_off_t_func;
static char ssl_backend[64];
static void lazy_load_curl(void)
{
static int initialized;
void *libcurl = NULL;
func_t curl_easy_getinfo_func, curl_easy_setopt_func;
if (initialized)
return;
initialized = 1;
if (ssl_backend[0]) {
char dll_name[64 + 16];
snprintf(dll_name, sizeof(dll_name) - 1,
LIBCURL_FILE_NAME("libcurl-%s"), ssl_backend);
libcurl = load_library(dll_name);
}
if (!libcurl)
libcurl = load_library(LIBCURL_FILE_NAME("libcurl"));
if (!libcurl)
die("failed to load library '%s'", LIBCURL_FILE_NAME("libcurl"));
curl_easy_escape_func = (curl_easy_escape_type)load_function(libcurl, "curl_easy_escape");
curl_free_func = (curl_free_type)load_function(libcurl, "curl_free");
curl_global_init_func = (curl_global_init_type)load_function(libcurl, "curl_global_init");
curl_global_sslset_func = (curl_global_sslset_type)load_function(libcurl, "curl_global_sslset");
curl_global_cleanup_func = (curl_global_cleanup_type)load_function(libcurl, "curl_global_cleanup");
curl_slist_append_func = (curl_slist_append_type)load_function(libcurl, "curl_slist_append");
curl_slist_free_all_func = (curl_slist_free_all_type)load_function(libcurl, "curl_slist_free_all");
curl_easy_strerror_func = (curl_easy_strerror_type)load_function(libcurl, "curl_easy_strerror");
curl_multi_init_func = (curl_multi_init_type)load_function(libcurl, "curl_multi_init");
curl_multi_add_handle_func = (curl_multi_add_handle_type)load_function(libcurl, "curl_multi_add_handle");
curl_multi_remove_handle_func = (curl_multi_remove_handle_type)load_function(libcurl, "curl_multi_remove_handle");
curl_multi_fdset_func = (curl_multi_fdset_type)load_function(libcurl, "curl_multi_fdset");
curl_multi_perform_func = (curl_multi_perform_type)load_function(libcurl, "curl_multi_perform");
curl_multi_cleanup_func = (curl_multi_cleanup_type)load_function(libcurl, "curl_multi_cleanup");
curl_multi_info_read_func = (curl_multi_info_read_type)load_function(libcurl, "curl_multi_info_read");
curl_multi_strerror_func = (curl_multi_strerror_type)load_function(libcurl, "curl_multi_strerror");
curl_multi_timeout_func = (curl_multi_timeout_type)load_function(libcurl, "curl_multi_timeout");
curl_easy_init_func = (curl_easy_init_type)load_function(libcurl, "curl_easy_init");
curl_easy_perform_func = (curl_easy_perform_type)load_function(libcurl, "curl_easy_perform");
curl_easy_cleanup_func = (curl_easy_cleanup_type)load_function(libcurl, "curl_easy_cleanup");
curl_easy_duphandle_func = (curl_easy_duphandle_type)load_function(libcurl, "curl_easy_duphandle");
curl_easy_getinfo_func = load_function(libcurl, "curl_easy_getinfo");
curl_easy_getinfo_long_func = (curl_easy_getinfo_long_type)curl_easy_getinfo_func;
curl_easy_getinfo_pointer_func = (curl_easy_getinfo_pointer_type)curl_easy_getinfo_func;
curl_easy_getinfo_off_t_func = (curl_easy_getinfo_off_t_type)curl_easy_getinfo_func;
curl_easy_setopt_func = load_function(libcurl, "curl_easy_setopt");
curl_easy_setopt_long_func = (curl_easy_setopt_long_type)curl_easy_setopt_func;
curl_easy_setopt_pointer_func = (curl_easy_setopt_pointer_type)curl_easy_setopt_func;
curl_easy_setopt_off_t_func = (curl_easy_setopt_off_t_type)curl_easy_setopt_func;
}
char *curl_easy_escape(CURL *handle, const char *string, int length)
{
lazy_load_curl();
return curl_easy_escape_func(handle, string, length);
}
void curl_free(void *p)
{
lazy_load_curl();
curl_free_func(p);
}
CURLcode curl_global_init(long flags)
{
lazy_load_curl();
return curl_global_init_func(flags);
}
CURLsslset curl_global_sslset(curl_sslbackend id, const char *name, const curl_ssl_backend ***avail)
{
if (name && strlen(name) < sizeof(ssl_backend))
strlcpy(ssl_backend, name, sizeof(ssl_backend));
lazy_load_curl();
return curl_global_sslset_func(id, name, avail);
}
void curl_global_cleanup(void)
{
lazy_load_curl();
curl_global_cleanup_func();
}
struct curl_slist *curl_slist_append(struct curl_slist *list, const char *data)
{
lazy_load_curl();
return curl_slist_append_func(list, data);
}
void curl_slist_free_all(struct curl_slist *list)
{
lazy_load_curl();
curl_slist_free_all_func(list);
}
const char *curl_easy_strerror(CURLcode error)
{
lazy_load_curl();
return curl_easy_strerror_func(error);
}
CURLM *curl_multi_init(void)
{
lazy_load_curl();
return curl_multi_init_func();
}
CURLMcode curl_multi_add_handle(CURLM *multi_handle, CURL *curl_handle)
{
lazy_load_curl();
return curl_multi_add_handle_func(multi_handle, curl_handle);
}
CURLMcode curl_multi_remove_handle(CURLM *multi_handle, CURL *curl_handle)
{
lazy_load_curl();
return curl_multi_remove_handle_func(multi_handle, curl_handle);
}
CURLMcode curl_multi_fdset(CURLM *multi_handle, fd_set *read_fd_set, fd_set *write_fd_set, fd_set *exc_fd_set, int *max_fd)
{
lazy_load_curl();
return curl_multi_fdset_func(multi_handle, read_fd_set, write_fd_set, exc_fd_set, max_fd);
}
CURLMcode curl_multi_perform(CURLM *multi_handle, int *running_handles)
{
lazy_load_curl();
return curl_multi_perform_func(multi_handle, running_handles);
}
CURLMcode curl_multi_cleanup(CURLM *multi_handle)
{
lazy_load_curl();
return curl_multi_cleanup_func(multi_handle);
}
CURLMsg *curl_multi_info_read(CURLM *multi_handle, int *msgs_in_queue)
{
lazy_load_curl();
return curl_multi_info_read_func(multi_handle, msgs_in_queue);
}
const char *curl_multi_strerror(CURLMcode error)
{
lazy_load_curl();
return curl_multi_strerror_func(error);
}
CURLMcode curl_multi_timeout(CURLM *multi_handle, long *milliseconds)
{
lazy_load_curl();
return curl_multi_timeout_func(multi_handle, milliseconds);
}
CURL *curl_easy_init(void)
{
lazy_load_curl();
return curl_easy_init_func();
}
CURLcode curl_easy_perform(CURL *curl)
{
lazy_load_curl();
return curl_easy_perform_func(curl);
}
void curl_easy_cleanup(CURL *curl)
{
lazy_load_curl();
curl_easy_cleanup_func(curl);
}
CURL *curl_easy_duphandle(CURL *curl)
{
lazy_load_curl();
return curl_easy_duphandle_func(curl);
}
#ifndef CURL_IGNORE_DEPRECATION
#define CURL_IGNORE_DEPRECATION(x) x
#endif
#ifndef CURLOPTTYPE_BLOB
#define CURLOPTTYPE_BLOB 40000
#endif
#undef curl_easy_getinfo
CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ...)
{
va_list ap;
CURLcode res;
va_start(ap, info);
lazy_load_curl();
CURL_IGNORE_DEPRECATION(
if (info >= CURLINFO_LONG && info < CURLINFO_DOUBLE)
res = curl_easy_getinfo_long_func(curl, info, va_arg(ap, long *));
else if ((info >= CURLINFO_STRING && info < CURLINFO_LONG) ||
(info >= CURLINFO_SLIST && info < CURLINFO_SOCKET))
res = curl_easy_getinfo_pointer_func(curl, info, va_arg(ap, void **));
else if (info >= CURLINFO_OFF_T)
res = curl_easy_getinfo_off_t_func(curl, info, va_arg(ap, curl_off_t *));
else
die("%s:%d: TODO (info: %d)!", __FILE__, __LINE__, info);
)
va_end(ap);
return res;
}
#undef curl_easy_setopt
CURLcode curl_easy_setopt(CURL *curl, CURLoption opt, ...)
{
va_list ap;
CURLcode res;
va_start(ap, opt);
lazy_load_curl();
CURL_IGNORE_DEPRECATION(
if (opt >= CURLOPTTYPE_LONG && opt < CURLOPTTYPE_OBJECTPOINT)
res = curl_easy_setopt_long_func(curl, opt, va_arg(ap, long));
else if (opt >= CURLOPTTYPE_OBJECTPOINT && opt < CURLOPTTYPE_OFF_T)
res = curl_easy_setopt_pointer_func(curl, opt, va_arg(ap, void *));
else if (opt >= CURLOPTTYPE_OFF_T && opt < CURLOPTTYPE_BLOB)
res = curl_easy_setopt_off_t_func(curl, opt, va_arg(ap, curl_off_t));
else
die("%s:%d: TODO (opt: %d)!", __FILE__, __LINE__, opt);
)
va_end(ap);
return res;
}

Просмотреть файл

@ -671,6 +671,7 @@ ifeq ($(uname_S),MINGW)
HAVE_PLATFORM_PROCINFO = YesPlease
CSPRNG_METHOD = rtlgenrandom
BASIC_LDFLAGS += -municode -Wl,--tsaware
LAZYLOAD_LIBCURL = YesDoThatPlease
COMPAT_CFLAGS += -DNOGDI -Icompat -Icompat/win32
COMPAT_CFLAGS += -DSTRIP_EXTENSION=\".exe\"
COMPAT_OBJS += compat/mingw.o compat/winansi.o \