#include "../git-compat-util.h"
#include "win32.h"
#include <conio.h>
+#include <wchar.h>
#include "../strbuf.h"
#include "../run-command.h"
+#include "../cache.h"
+#include "win32/lazyload.h"
+#include "../config.h"
+#include "dir.h"
+
+#define HCAST(type, handle) ((type)(intptr_t)handle)
static const int delay[] = { 0, 1, 10, 20, 40 };
}
}
-#undef unlink
+/* Windows only */
+enum hide_dotfiles_type {
+ HIDE_DOTFILES_FALSE = 0,
+ HIDE_DOTFILES_TRUE,
+ HIDE_DOTFILES_DOTGITONLY
+};
+
+static enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
+static char *unset_environment_variables;
+
+int mingw_core_config(const char *var, const char *value, void *cb)
+{
+ if (!strcmp(var, "core.hidedotfiles")) {
+ if (value && !strcasecmp(value, "dotgitonly"))
+ hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
+ else
+ hide_dotfiles = git_config_bool(var, value);
+ return 0;
+ }
+
+ if (!strcmp(var, "core.unsetenvvars")) {
+ free(unset_environment_variables);
+ unset_environment_variables = xstrdup(value);
+ return 0;
+ }
+
+ return 0;
+}
+
+/* Normalizes NT paths as returned by some low-level APIs. */
+static wchar_t *normalize_ntpath(wchar_t *wbuf)
+{
+ int i;
+ /* fix absolute path prefixes */
+ if (wbuf[0] == '\\') {
+ /* strip NT namespace prefixes */
+ if (!wcsncmp(wbuf, L"\\??\\", 4) ||
+ !wcsncmp(wbuf, L"\\\\?\\", 4))
+ wbuf += 4;
+ else if (!wcsnicmp(wbuf, L"\\DosDevices\\", 12))
+ wbuf += 12;
+ /* replace remaining '...UNC\' with '\\' */
+ if (!wcsnicmp(wbuf, L"UNC\\", 4)) {
+ wbuf += 2;
+ *wbuf = '\\';
+ }
+ }
+ /* convert backslashes to slashes */
+ for (i = 0; wbuf[i]; i++)
+ if (wbuf[i] == '\\')
+ wbuf[i] = '/';
+ return wbuf;
+}
+
int mingw_unlink(const char *pathname)
{
int ret, tries = 0;
+ wchar_t wpathname[MAX_PATH];
+ if (xutftowcs_path(wpathname, pathname) < 0)
+ return -1;
/* read-only files cannot be removed */
- chmod(pathname, 0666);
- while ((ret = unlink(pathname)) == -1 && tries < ARRAY_SIZE(delay)) {
+ _wchmod(wpathname, 0666);
+ while ((ret = _wunlink(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
if (!is_file_in_use_error(GetLastError()))
break;
/*
while (ret == -1 && is_file_in_use_error(GetLastError()) &&
ask_yes_no_if_possible("Unlink of file '%s' failed. "
"Should I try again?", pathname))
- ret = unlink(pathname);
+ ret = _wunlink(wpathname);
return ret;
}
-static int is_dir_empty(const char *path)
+static int is_dir_empty(const wchar_t *wpath)
{
- struct strbuf buf = STRBUF_INIT;
- WIN32_FIND_DATAA findbuf;
+ WIN32_FIND_DATAW findbuf;
HANDLE handle;
-
- strbuf_addf(&buf, "%s\\*", path);
- handle = FindFirstFileA(buf.buf, &findbuf);
- if (handle == INVALID_HANDLE_VALUE) {
- strbuf_release(&buf);
+ wchar_t wbuf[MAX_PATH + 2];
+ wcscpy(wbuf, wpath);
+ wcscat(wbuf, L"\\*");
+ handle = FindFirstFileW(wbuf, &findbuf);
+ if (handle == INVALID_HANDLE_VALUE)
return GetLastError() == ERROR_NO_MORE_FILES;
- }
- while (!strcmp(findbuf.cFileName, ".") ||
- !strcmp(findbuf.cFileName, ".."))
- if (!FindNextFile(handle, &findbuf)) {
- strbuf_release(&buf);
- return GetLastError() == ERROR_NO_MORE_FILES;
+ while (!wcscmp(findbuf.cFileName, L".") ||
+ !wcscmp(findbuf.cFileName, L".."))
+ if (!FindNextFileW(handle, &findbuf)) {
+ DWORD err = GetLastError();
+ FindClose(handle);
+ return err == ERROR_NO_MORE_FILES;
}
FindClose(handle);
- strbuf_release(&buf);
return 0;
}
-#undef rmdir
int mingw_rmdir(const char *pathname)
{
int ret, tries = 0;
+ wchar_t wpathname[MAX_PATH];
+ if (xutftowcs_path(wpathname, pathname) < 0)
+ return -1;
- while ((ret = rmdir(pathname)) == -1 && tries < ARRAY_SIZE(delay)) {
+ while ((ret = _wrmdir(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
if (!is_file_in_use_error(GetLastError()))
errno = err_win_to_posix(GetLastError());
if (errno != EACCES)
break;
- if (!is_dir_empty(pathname)) {
+ if (!is_dir_empty(wpathname)) {
errno = ENOTEMPTY;
break;
}
while (ret == -1 && errno == EACCES && is_file_in_use_error(GetLastError()) &&
ask_yes_no_if_possible("Deletion of directory '%s' failed. "
"Should I try again?", pathname))
- ret = rmdir(pathname);
+ ret = _wrmdir(wpathname);
return ret;
}
-#undef open
+static inline int needs_hiding(const char *path)
+{
+ const char *basename;
+
+ if (hide_dotfiles == HIDE_DOTFILES_FALSE)
+ return 0;
+
+ /* We cannot use basename(), as it would remove trailing slashes */
+ win32_skip_dos_drive_prefix((char **)&path);
+ if (!*path)
+ return 0;
+
+ for (basename = path; *path; path++)
+ if (is_dir_sep(*path)) {
+ do {
+ path++;
+ } while (is_dir_sep(*path));
+ /* ignore trailing slashes */
+ if (*path)
+ basename = path;
+ }
+
+ if (hide_dotfiles == HIDE_DOTFILES_TRUE)
+ return *basename == '.';
+
+ assert(hide_dotfiles == HIDE_DOTFILES_DOTGITONLY);
+ return !strncasecmp(".git", basename, 4) &&
+ (!basename[4] || is_dir_sep(basename[4]));
+}
+
+static int set_hidden_flag(const wchar_t *path, int set)
+{
+ DWORD original = GetFileAttributesW(path), modified;
+ if (set)
+ modified = original | FILE_ATTRIBUTE_HIDDEN;
+ else
+ modified = original & ~FILE_ATTRIBUTE_HIDDEN;
+ if (original == modified || SetFileAttributesW(path, modified))
+ return 0;
+ errno = err_win_to_posix(GetLastError());
+ return -1;
+}
+
+int mingw_mkdir(const char *path, int mode)
+{
+ int ret;
+ wchar_t wpath[MAX_PATH];
+ if (xutftowcs_path(wpath, path) < 0)
+ return -1;
+ ret = _wmkdir(wpath);
+ if (!ret && needs_hiding(path))
+ return set_hidden_flag(wpath, 1);
+ return ret;
+}
+
+/*
+ * Calling CreateFile() using FILE_APPEND_DATA and without FILE_WRITE_DATA
+ * is documented in [1] as opening a writable file handle in append mode.
+ * (It is believed that) this is atomic since it is maintained by the
+ * kernel unlike the O_APPEND flag which is racily maintained by the CRT.
+ *
+ * [1] https://docs.microsoft.com/en-us/windows/desktop/fileio/file-access-rights-constants
+ *
+ * This trick does not appear to work for named pipes. Instead it creates
+ * a named pipe client handle that cannot be written to. Callers should
+ * just use the regular _wopen() for them. (And since client handle gets
+ * bound to a unique server handle, it isn't really an issue.)
+ */
+static int mingw_open_append(wchar_t const *wfilename, int oflags, ...)
+{
+ HANDLE handle;
+ int fd;
+ DWORD create = (oflags & O_CREAT) ? OPEN_ALWAYS : OPEN_EXISTING;
+
+ /* only these flags are supported */
+ if ((oflags & ~O_CREAT) != (O_WRONLY | O_APPEND))
+ return errno = ENOSYS, -1;
+
+ /*
+ * FILE_SHARE_WRITE is required to permit child processes
+ * to append to the file.
+ */
+ handle = CreateFileW(wfilename, FILE_APPEND_DATA,
+ FILE_SHARE_WRITE | FILE_SHARE_READ,
+ NULL, create, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (handle == INVALID_HANDLE_VALUE)
+ return errno = err_win_to_posix(GetLastError()), -1;
+
+ /*
+ * No O_APPEND here, because the CRT uses it only to reset the
+ * file pointer to EOF before each write(); but that is not
+ * necessary (and may lead to races) for a file created with
+ * FILE_APPEND_DATA.
+ */
+ fd = _open_osfhandle((intptr_t)handle, O_BINARY);
+ if (fd < 0)
+ CloseHandle(handle);
+ return fd;
+}
+
+/*
+ * Does the pathname map to the local named pipe filesystem?
+ * That is, does it have a "//./pipe/" prefix?
+ */
+static int is_local_named_pipe_path(const char *filename)
+{
+ return (is_dir_sep(filename[0]) &&
+ is_dir_sep(filename[1]) &&
+ filename[2] == '.' &&
+ is_dir_sep(filename[3]) &&
+ !strncasecmp(filename+4, "pipe", 4) &&
+ is_dir_sep(filename[8]) &&
+ filename[9]);
+}
+
int mingw_open (const char *filename, int oflags, ...)
{
+ typedef int (*open_fn_t)(wchar_t const *wfilename, int oflags, ...);
va_list args;
unsigned mode;
int fd;
+ wchar_t wfilename[MAX_PATH];
+ open_fn_t open_fn;
va_start(args, oflags);
mode = va_arg(args, int);
if (filename && !strcmp(filename, "/dev/null"))
filename = "nul";
- fd = open(filename, oflags, mode);
+ if ((oflags & O_APPEND) && !is_local_named_pipe_path(filename))
+ open_fn = mingw_open_append;
+ else
+ open_fn = _wopen;
+
+ if (xutftowcs_path(wfilename, filename) < 0)
+ return -1;
+ fd = open_fn(wfilename, oflags, mode);
- if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
- DWORD attrs = GetFileAttributes(filename);
+ if (fd < 0 && (oflags & O_ACCMODE) != O_RDONLY && errno == EACCES) {
+ DWORD attrs = GetFileAttributesW(wfilename);
if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
errno = EISDIR;
}
+ if ((oflags & O_CREAT) && needs_hiding(filename)) {
+ /*
+ * Internally, _wopen() uses the CreateFile() API which errors
+ * out with an ERROR_ACCESS_DENIED if CREATE_ALWAYS was
+ * specified and an already existing file's attributes do not
+ * match *exactly*. As there is no mode or flag we can set that
+ * would correspond to FILE_ATTRIBUTE_HIDDEN, let's just try
+ * again *without* the O_CREAT flag (that corresponds to the
+ * CREATE_ALWAYS flag of CreateFile()).
+ */
+ if (fd < 0 && errno == EACCES)
+ fd = open_fn(wfilename, oflags & ~O_CREAT, mode);
+ if (fd >= 0 && set_hidden_flag(wfilename, 1))
+ warning("could not mark '%s' as hidden.", filename);
+ }
return fd;
}
#undef fopen
FILE *mingw_fopen (const char *filename, const char *otype)
{
+ int hide = needs_hiding(filename);
+ FILE *file;
+ wchar_t wfilename[MAX_PATH], wotype[4];
if (filename && !strcmp(filename, "/dev/null"))
filename = "nul";
- return fopen(filename, otype);
+ if (xutftowcs_path(wfilename, filename) < 0 ||
+ xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
+ return NULL;
+ if (hide && !access(filename, F_OK) && set_hidden_flag(wfilename, 0)) {
+ error("could not unhide %s", filename);
+ return NULL;
+ }
+ file = _wfopen(wfilename, wotype);
+ if (!file && GetLastError() == ERROR_INVALID_NAME)
+ errno = ENOENT;
+ if (file && hide && set_hidden_flag(wfilename, 1))
+ warning("could not mark '%s' as hidden.", filename);
+ return file;
}
-#undef freopen
FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
{
+ int hide = needs_hiding(filename);
+ FILE *file;
+ wchar_t wfilename[MAX_PATH], wotype[4];
if (filename && !strcmp(filename, "/dev/null"))
filename = "nul";
- return freopen(filename, otype, stream);
+ if (xutftowcs_path(wfilename, filename) < 0 ||
+ xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
+ return NULL;
+ if (hide && !access(filename, F_OK) && set_hidden_flag(wfilename, 0)) {
+ error("could not unhide %s", filename);
+ return NULL;
+ }
+ file = _wfreopen(wfilename, wotype, stream);
+ if (file && hide && set_hidden_flag(wfilename, 1))
+ warning("could not mark '%s' as hidden.", filename);
+ return file;
}
#undef fflush
return ret;
}
+#undef write
+ssize_t mingw_write(int fd, const void *buf, size_t len)
+{
+ ssize_t result = write(fd, buf, len);
+
+ if (result < 0 && errno == EINVAL && buf) {
+ /* check if fd is a pipe */
+ HANDLE h = (HANDLE) _get_osfhandle(fd);
+ if (GetFileType(h) == FILE_TYPE_PIPE)
+ errno = EPIPE;
+ else
+ errno = EINVAL;
+ }
+
+ return result;
+}
+
+int mingw_access(const char *filename, int mode)
+{
+ wchar_t wfilename[MAX_PATH];
+ if (xutftowcs_path(wfilename, filename) < 0)
+ return -1;
+ /* X_OK is not supported by the MSVCRT version */
+ return _waccess(wfilename, mode & ~X_OK);
+}
+
+int mingw_chdir(const char *dirname)
+{
+ wchar_t wdirname[MAX_PATH];
+ if (xutftowcs_path(wdirname, dirname) < 0)
+ return -1;
+ return _wchdir(wdirname);
+}
+
+int mingw_chmod(const char *filename, int mode)
+{
+ wchar_t wfilename[MAX_PATH];
+ if (xutftowcs_path(wfilename, filename) < 0)
+ return -1;
+ return _wchmod(wfilename, mode);
+}
+
/*
* The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
* Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
return winTime - 116444736000000000LL;
}
-static inline time_t filetime_to_time_t(const FILETIME *ft)
+static inline void filetime_to_timespec(const FILETIME *ft, struct timespec *ts)
{
- return (time_t)(filetime_to_hnsec(ft) / 10000000);
+ long long hnsec = filetime_to_hnsec(ft);
+ ts->tv_sec = (time_t)(hnsec / 10000000);
+ ts->tv_nsec = (hnsec % 10000000) * 100;
+}
+
+/**
+ * Verifies that safe_create_leading_directories() would succeed.
+ */
+static int has_valid_directory_prefix(wchar_t *wfilename)
+{
+ int n = wcslen(wfilename);
+
+ while (n > 0) {
+ wchar_t c = wfilename[--n];
+ DWORD attributes;
+
+ if (!is_dir_sep(c))
+ continue;
+
+ wfilename[n] = L'\0';
+ attributes = GetFileAttributesW(wfilename);
+ wfilename[n] = c;
+ if (attributes == FILE_ATTRIBUTE_DIRECTORY ||
+ attributes == FILE_ATTRIBUTE_DEVICE)
+ return 1;
+ if (attributes == INVALID_FILE_ATTRIBUTES)
+ switch (GetLastError()) {
+ case ERROR_PATH_NOT_FOUND:
+ continue;
+ case ERROR_FILE_NOT_FOUND:
+ /* This implies parent directory exists. */
+ return 1;
+ }
+ return 0;
+ }
+ return 1;
}
/* We keep the do_lstat code in a separate function to avoid recursion.
*/
static int do_lstat(int follow, const char *file_name, struct stat *buf)
{
- int err;
WIN32_FILE_ATTRIBUTE_DATA fdata;
+ wchar_t wfilename[MAX_PATH];
+ if (xutftowcs_path(wfilename, file_name) < 0)
+ return -1;
- if (!(err = get_file_attr(file_name, &fdata))) {
+ if (GetFileAttributesExW(wfilename, GetFileExInfoStandard, &fdata)) {
buf->st_ino = 0;
buf->st_gid = 0;
buf->st_uid = 0;
buf->st_size = fdata.nFileSizeLow |
(((off_t)fdata.nFileSizeHigh)<<32);
buf->st_dev = buf->st_rdev = 0; /* not used by Git */
- buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
- buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
- buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
+ filetime_to_timespec(&(fdata.ftLastAccessTime), &(buf->st_atim));
+ filetime_to_timespec(&(fdata.ftLastWriteTime), &(buf->st_mtim));
+ filetime_to_timespec(&(fdata.ftCreationTime), &(buf->st_ctim));
if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
- WIN32_FIND_DATAA findbuf;
- HANDLE handle = FindFirstFileA(file_name, &findbuf);
+ WIN32_FIND_DATAW findbuf;
+ HANDLE handle = FindFirstFileW(wfilename, &findbuf);
if (handle != INVALID_HANDLE_VALUE) {
if ((findbuf.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
(findbuf.dwReserved0 == IO_REPARSE_TAG_SYMLINK)) {
}
return 0;
}
- errno = err;
+ switch (GetLastError()) {
+ case ERROR_ACCESS_DENIED:
+ case ERROR_SHARING_VIOLATION:
+ case ERROR_LOCK_VIOLATION:
+ case ERROR_SHARING_BUFFER_EXCEEDED:
+ errno = EACCES;
+ break;
+ case ERROR_BUFFER_OVERFLOW:
+ errno = ENAMETOOLONG;
+ break;
+ case ERROR_NOT_ENOUGH_MEMORY:
+ errno = ENOMEM;
+ break;
+ case ERROR_PATH_NOT_FOUND:
+ if (!has_valid_directory_prefix(wfilename)) {
+ errno = ENOTDIR;
+ break;
+ }
+ /* fallthru */
+ default:
+ errno = ENOENT;
+ break;
+ }
return -1;
}
static int do_stat_internal(int follow, const char *file_name, struct stat *buf)
{
int namelen;
- static char alt_name[PATH_MAX];
+ char alt_name[PATH_MAX];
if (!do_lstat(follow, file_name, buf))
return 0;
return do_lstat(follow, alt_name, buf);
}
+static int get_file_info_by_handle(HANDLE hnd, struct stat *buf)
+{
+ BY_HANDLE_FILE_INFORMATION fdata;
+
+ if (!GetFileInformationByHandle(hnd, &fdata)) {
+ errno = err_win_to_posix(GetLastError());
+ return -1;
+ }
+
+ buf->st_ino = 0;
+ buf->st_gid = 0;
+ buf->st_uid = 0;
+ buf->st_nlink = 1;
+ buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
+ buf->st_size = fdata.nFileSizeLow |
+ (((off_t)fdata.nFileSizeHigh)<<32);
+ buf->st_dev = buf->st_rdev = 0; /* not used by Git */
+ filetime_to_timespec(&(fdata.ftLastAccessTime), &(buf->st_atim));
+ filetime_to_timespec(&(fdata.ftLastWriteTime), &(buf->st_mtim));
+ filetime_to_timespec(&(fdata.ftCreationTime), &(buf->st_ctim));
+ return 0;
+}
+
int mingw_lstat(const char *file_name, struct stat *buf)
{
return do_stat_internal(0, file_name, buf);
int mingw_fstat(int fd, struct stat *buf)
{
HANDLE fh = (HANDLE)_get_osfhandle(fd);
- BY_HANDLE_FILE_INFORMATION fdata;
+ DWORD avail, type = GetFileType(fh) & ~FILE_TYPE_REMOTE;
- if (fh == INVALID_HANDLE_VALUE) {
- errno = EBADF;
- return -1;
- }
- /* direct non-file handles to MS's fstat() */
- if (GetFileType(fh) != FILE_TYPE_DISK)
- return _fstati64(fd, buf);
+ switch (type) {
+ case FILE_TYPE_DISK:
+ return get_file_info_by_handle(fh, buf);
- if (GetFileInformationByHandle(fh, &fdata)) {
- buf->st_ino = 0;
- buf->st_gid = 0;
- buf->st_uid = 0;
+ case FILE_TYPE_CHAR:
+ case FILE_TYPE_PIPE:
+ /* initialize stat fields */
+ memset(buf, 0, sizeof(*buf));
buf->st_nlink = 1;
- buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
- buf->st_size = fdata.nFileSizeLow |
- (((off_t)fdata.nFileSizeHigh)<<32);
- buf->st_dev = buf->st_rdev = 0; /* not used by Git */
- buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
- buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
- buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
+
+ if (type == FILE_TYPE_CHAR) {
+ buf->st_mode = _S_IFCHR;
+ } else {
+ buf->st_mode = _S_IFIFO;
+ if (PeekNamedPipe(fh, NULL, 0, NULL, &avail, NULL))
+ buf->st_size = avail;
+ }
return 0;
+
+ default:
+ errno = EBADF;
+ return -1;
}
- errno = EBADF;
- return -1;
}
static inline void time_t_to_filetime(time_t t, FILETIME *ft)
{
FILETIME mft, aft;
int fh, rc;
+ DWORD attrs;
+ wchar_t wfilename[MAX_PATH];
+ if (xutftowcs_path(wfilename, file_name) < 0)
+ return -1;
/* must have write permission */
- DWORD attrs = GetFileAttributes(file_name);
+ attrs = GetFileAttributesW(wfilename);
if (attrs != INVALID_FILE_ATTRIBUTES &&
(attrs & FILE_ATTRIBUTE_READONLY)) {
/* ignore errors here; open() will report them */
- SetFileAttributes(file_name, attrs & ~FILE_ATTRIBUTE_READONLY);
+ SetFileAttributesW(wfilename, attrs & ~FILE_ATTRIBUTE_READONLY);
}
- if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0) {
+ if ((fh = _wopen(wfilename, O_RDWR | O_BINARY)) < 0) {
rc = -1;
goto revert_attrs;
}
if (attrs != INVALID_FILE_ATTRIBUTES &&
(attrs & FILE_ATTRIBUTE_READONLY)) {
/* ignore errors again */
- SetFileAttributes(file_name, attrs);
+ SetFileAttributesW(wfilename, attrs);
}
return rc;
}
+#undef strftime
+size_t mingw_strftime(char *s, size_t max,
+ const char *format, const struct tm *tm)
+{
+ size_t ret = strftime(s, max, format, tm);
+
+ if (!ret && errno == EINVAL)
+ die("invalid strftime format: '%s'", format);
+ return ret;
+}
+
unsigned int sleep (unsigned int seconds)
{
Sleep(seconds*1000);
return 0;
}
+char *mingw_mktemp(char *template)
+{
+ wchar_t wtemplate[MAX_PATH];
+ if (xutftowcs_path(wtemplate, template) < 0)
+ return NULL;
+ if (!_wmktemp(wtemplate))
+ return NULL;
+ if (xwcstoutf(template, wtemplate, strlen(template) + 1) < 0)
+ return NULL;
+ return template;
+}
+
int mkstemp(char *template)
{
char *filename = mktemp(template);
errno = err_win_to_posix(GetLastError());
return -1;
}
- filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT);
+ filedes[0] = _open_osfhandle(HCAST(int, h[0]), O_NOINHERIT);
if (filedes[0] < 0) {
CloseHandle(h[0]);
CloseHandle(h[1]);
return -1;
}
- filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT);
- if (filedes[0] < 0) {
+ filedes[1] = _open_osfhandle(HCAST(int, h[1]), O_NOINHERIT);
+ if (filedes[1] < 0) {
close(filedes[0]);
CloseHandle(h[1]);
return -1;
return result;
}
-#undef getcwd
char *mingw_getcwd(char *pointer, int len)
{
- int i;
- char *ret = getcwd(pointer, len);
- if (!ret)
- return ret;
- for (i = 0; pointer[i]; i++)
- if (pointer[i] == '\\')
- pointer[i] = '/';
- return ret;
+ wchar_t cwd[MAX_PATH], wpointer[MAX_PATH];
+ DWORD ret = GetCurrentDirectoryW(ARRAY_SIZE(cwd), cwd);
+
+ if (!ret || ret >= ARRAY_SIZE(cwd)) {
+ errno = ret ? ENAMETOOLONG : err_win_to_posix(GetLastError());
+ return NULL;
+ }
+ ret = GetLongPathNameW(cwd, wpointer, ARRAY_SIZE(wpointer));
+ if (!ret && GetLastError() == ERROR_ACCESS_DENIED) {
+ HANDLE hnd = CreateFileW(cwd, 0,
+ FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
+ OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
+ if (hnd == INVALID_HANDLE_VALUE)
+ return NULL;
+ ret = GetFinalPathNameByHandleW(hnd, wpointer, ARRAY_SIZE(wpointer), 0);
+ CloseHandle(hnd);
+ if (!ret || ret >= ARRAY_SIZE(wpointer))
+ return NULL;
+ if (xwcstoutf(pointer, normalize_ntpath(wpointer), len) < 0)
+ return NULL;
+ return pointer;
+ }
+ if (!ret || ret >= ARRAY_SIZE(wpointer))
+ return NULL;
+ if (xwcstoutf(pointer, wpointer, len) < 0)
+ return NULL;
+ convert_slashes(pointer);
+ return pointer;
}
/*
- * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
- * (Parsing C++ Command-Line Arguments)
+ * See "Parsing C++ Command-Line Arguments" at Microsoft's Docs:
+ * https://docs.microsoft.com/en-us/cpp/cpp/parsing-cpp-command-line-arguments
*/
-static const char *quote_arg(const char *arg)
+static const char *quote_arg_msvc(const char *arg)
{
/* count chars to quote */
int len = 0, n = 0;
return arg;
/* insert \ where necessary */
- d = q = xmalloc(len+n+3);
+ d = q = xmalloc(st_add3(len, n, 3));
*d++ = '"';
while (*arg) {
if (*arg == '"')
return q;
}
+#include "quote.h"
+
+static const char *quote_arg_msys2(const char *arg)
+{
+ struct strbuf buf = STRBUF_INIT;
+ const char *p2 = arg, *p;
+
+ for (p = arg; *p; p++) {
+ int ws = isspace(*p);
+ if (!ws && *p != '\\' && *p != '"' && *p != '{')
+ continue;
+ if (!buf.len)
+ strbuf_addch(&buf, '"');
+ if (p != p2)
+ strbuf_add(&buf, p2, p - p2);
+ if (!ws && *p != '{')
+ strbuf_addch(&buf, '\\');
+ p2 = p;
+ }
+
+ if (p == arg)
+ strbuf_addch(&buf, '"');
+ else if (!buf.len)
+ return arg;
+ else
+ strbuf_add(&buf, p2, p - p2),
+
+ strbuf_addch(&buf, '"');
+ return strbuf_detach(&buf, 0);
+}
+
static const char *parse_interpreter(const char *cmd)
{
static char buf[100];
}
/*
- * Splits the PATH into parts.
- */
-static char **get_path_split(void)
-{
- char *p, **path, *envpath = mingw_getenv("PATH");
- int i, n = 0;
-
- if (!envpath || !*envpath)
- return NULL;
-
- envpath = xstrdup(envpath);
- p = envpath;
- while (p) {
- char *dir = p;
- p = strchr(p, ';');
- if (p) *p++ = '\0';
- if (*dir) { /* not earlier, catches series of ; */
- ++n;
- }
- }
- if (!n)
- return NULL;
-
- path = xmalloc((n+1)*sizeof(char *));
- p = envpath;
- i = 0;
- do {
- if (*p)
- path[i++] = xstrdup(p);
- p = p+strlen(p)+1;
- } while (i < n);
- path[i] = NULL;
-
- free(envpath);
-
- return path;
-}
-
-static void free_path_split(char **path)
-{
- char **p = path;
-
- if (!path)
- return;
-
- while (*p)
- free(*p++);
- free(path);
-}
-
-/*
* exe_only means that we only want to detect .exe files, but not scripts
* (which do not have an extension)
*/
-static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only)
+static char *lookup_prog(const char *dir, int dirlen, const char *cmd,
+ int isexe, int exe_only)
{
char path[MAX_PATH];
- snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd);
+ snprintf(path, sizeof(path), "%.*s\\%s.exe", dirlen, dir, cmd);
if (!isexe && access(path, F_OK) == 0)
return xstrdup(path);
* Determines the absolute path of cmd using the split path in path.
* If cmd contains a slash or backslash, no lookup is performed.
*/
-static char *path_lookup(const char *cmd, char **path, int exe_only)
+static char *path_lookup(const char *cmd, int exe_only)
{
+ const char *path;
char *prog = NULL;
int len = strlen(cmd);
int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
if (strchr(cmd, '/') || strchr(cmd, '\\'))
- prog = xstrdup(cmd);
+ return xstrdup(cmd);
+
+ path = mingw_getenv("PATH");
+ if (!path)
+ return NULL;
- while (!prog && *path)
- prog = lookup_prog(*path++, cmd, isexe, exe_only);
+ while (!prog) {
+ const char *sep = strchrnul(path, ';');
+ int dirlen = sep - path;
+ if (dirlen)
+ prog = lookup_prog(path, dirlen, cmd, isexe, exe_only);
+ if (!*sep)
+ break;
+ path = sep + 1;
+ }
return prog;
}
-static int env_compare(const void *a, const void *b)
+static const wchar_t *wcschrnul(const wchar_t *s, wchar_t c)
+{
+ while (*s && *s != c)
+ s++;
+ return s;
+}
+
+/* Compare only keys */
+static int wenvcmp(const void *a, const void *b)
{
- char *const *ea = a;
- char *const *eb = b;
- return strcasecmp(*ea, *eb);
+ wchar_t *p = *(wchar_t **)a, *q = *(wchar_t **)b;
+ size_t p_len, q_len;
+
+ /* Find the keys */
+ p_len = wcschrnul(p, L'=') - p;
+ q_len = wcschrnul(q, L'=') - q;
+
+ /* If the length differs, include the shorter key's NUL */
+ if (p_len < q_len)
+ p_len++;
+ else if (p_len > q_len)
+ p_len = q_len + 1;
+
+ return _wcsnicmp(p, q, p_len);
+}
+
+/* We need a stable sort to convert the environment between UTF-16 <-> UTF-8 */
+#ifndef INTERNAL_QSORT
+#include "qsort.c"
+#endif
+
+/*
+ * Build an environment block combining the inherited environment
+ * merged with the given list of settings.
+ *
+ * Values of the form "KEY=VALUE" in deltaenv override inherited values.
+ * Values of the form "KEY" in deltaenv delete inherited values.
+ *
+ * Multiple entries in deltaenv for the same key are explicitly allowed.
+ *
+ * We return a contiguous block of UNICODE strings with a final trailing
+ * zero word.
+ */
+static wchar_t *make_environment_block(char **deltaenv)
+{
+ wchar_t *wenv = GetEnvironmentStringsW(), *wdeltaenv, *result, *p;
+ size_t wlen, s, delta_size, size;
+
+ wchar_t **array = NULL;
+ size_t alloc = 0, nr = 0, i;
+
+ size = 1; /* for extra NUL at the end */
+
+ /* If there is no deltaenv to apply, simply return a copy. */
+ if (!deltaenv || !*deltaenv) {
+ for (p = wenv; p && *p; ) {
+ size_t s = wcslen(p) + 1;
+ size += s;
+ p += s;
+ }
+
+ ALLOC_ARRAY(result, size);
+ memcpy(result, wenv, size * sizeof(*wenv));
+ FreeEnvironmentStringsW(wenv);
+ return result;
+ }
+
+ /*
+ * If there is a deltaenv, let's accumulate all keys into `array`,
+ * sort them using the stable git_qsort() and then copy, skipping
+ * duplicate keys
+ */
+ for (p = wenv; p && *p; ) {
+ ALLOC_GROW(array, nr + 1, alloc);
+ s = wcslen(p) + 1;
+ array[nr++] = p;
+ p += s;
+ size += s;
+ }
+
+ /* (over-)assess size needed for wchar version of deltaenv */
+ for (delta_size = 0, i = 0; deltaenv[i]; i++)
+ delta_size += strlen(deltaenv[i]) * 2 + 1;
+ ALLOC_ARRAY(wdeltaenv, delta_size);
+
+ /* convert the deltaenv, appending to array */
+ for (i = 0, p = wdeltaenv; deltaenv[i]; i++) {
+ ALLOC_GROW(array, nr + 1, alloc);
+ wlen = xutftowcs(p, deltaenv[i], wdeltaenv + delta_size - p);
+ array[nr++] = p;
+ p += wlen + 1;
+ }
+
+ git_qsort(array, nr, sizeof(*array), wenvcmp);
+ ALLOC_ARRAY(result, size + delta_size);
+
+ for (p = result, i = 0; i < nr; i++) {
+ /* Skip any duplicate keys; last one wins */
+ while (i + 1 < nr && !wenvcmp(array + i, array + i + 1))
+ i++;
+
+ /* Skip "to delete" entry */
+ if (!wcschr(array[i], L'='))
+ continue;
+
+ size = wcslen(array[i]) + 1;
+ memcpy(p, array[i], size * sizeof(*p));
+ p += size;
+ }
+ *p = L'\0';
+
+ free(array);
+ free(wdeltaenv);
+ FreeEnvironmentStringsW(wenv);
+ return result;
+}
+
+static void do_unset_environment_variables(void)
+{
+ static int done;
+ char *p = unset_environment_variables;
+
+ if (done || !p)
+ return;
+ done = 1;
+
+ for (;;) {
+ char *comma = strchr(p, ',');
+
+ if (comma)
+ *comma = '\0';
+ unsetenv(p);
+ if (!comma)
+ break;
+ p = comma + 1;
+ }
}
struct pinfo_t {
static struct pinfo_t *pinfo = NULL;
CRITICAL_SECTION pinfo_cs;
-static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
+/* Used to match and chomp off path components */
+static inline int match_last_path_component(const char *path, size_t *len,
+ const char *component)
+{
+ size_t component_len = strlen(component);
+ if (*len < component_len + 1 ||
+ !is_dir_sep(path[*len - component_len - 1]) ||
+ fspathncmp(path + *len - component_len, component, component_len))
+ return 0;
+ *len -= component_len + 1;
+ /* chomp off repeated dir separators */
+ while (*len > 0 && is_dir_sep(path[*len - 1]))
+ (*len)--;
+ return 1;
+}
+
+static int is_msys2_sh(const char *cmd)
+{
+ if (cmd && !strcmp(cmd, "sh")) {
+ static int ret = -1;
+ char *p;
+
+ if (ret >= 0)
+ return ret;
+
+ p = path_lookup(cmd, 0);
+ if (!p)
+ ret = 0;
+ else {
+ size_t len = strlen(p);
+
+ ret = match_last_path_component(p, &len, "sh.exe") &&
+ match_last_path_component(p, &len, "bin") &&
+ match_last_path_component(p, &len, "usr");
+ free(p);
+ }
+ return ret;
+ }
+ return 0;
+}
+
+static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaenv,
const char *dir,
int prepend_cmd, int fhin, int fhout, int fherr)
{
- STARTUPINFO si;
+ STARTUPINFOW si;
PROCESS_INFORMATION pi;
- struct strbuf envblk, args;
- unsigned flags;
+ struct strbuf args;
+ wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs, *wenvblk = NULL;
+ unsigned flags = CREATE_UNICODE_ENVIRONMENT;
BOOL ret;
+ HANDLE cons;
+ const char *(*quote_arg)(const char *arg) =
+ is_msys2_sh(*argv) ? quote_arg_msys2 : quote_arg_msvc;
+
+ do_unset_environment_variables();
/* Determine whether or not we are associated to a console */
- HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
+ cons = CreateFile("CONOUT$", GENERIC_WRITE,
FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if (cons == INVALID_HANDLE_VALUE) {
* instead of CREATE_NO_WINDOW to make ssh
* recognize that it has no console.
*/
- flags = DETACHED_PROCESS;
+ flags |= DETACHED_PROCESS;
} else {
/* There is already a console. If we specified
* DETACHED_PROCESS here, too, Windows would
* The same is true for CREATE_NO_WINDOW.
* Go figure!
*/
- flags = 0;
CloseHandle(cons);
}
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
si.dwFlags = STARTF_USESTDHANDLES;
- si.hStdInput = (HANDLE) _get_osfhandle(fhin);
- si.hStdOutput = (HANDLE) _get_osfhandle(fhout);
- si.hStdError = (HANDLE) _get_osfhandle(fherr);
+ si.hStdInput = winansi_get_osfhandle(fhin);
+ si.hStdOutput = winansi_get_osfhandle(fhout);
+ si.hStdError = winansi_get_osfhandle(fherr);
+
+ if (xutftowcs_path(wcmd, cmd) < 0)
+ return -1;
+ if (dir && xutftowcs_path(wdir, dir) < 0)
+ return -1;
/* concatenate argv, quoting args as we go */
strbuf_init(&args, 0);
free(quoted);
}
- if (env) {
- int count = 0;
- char **e, **sorted_env;
-
- for (e = env; *e; e++)
- count++;
-
- /* environment must be sorted */
- sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1));
- memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1));
- qsort(sorted_env, count, sizeof(*sorted_env), env_compare);
+ ALLOC_ARRAY(wargs, st_add(st_mult(2, args.len), 1));
+ xutftowcs(wargs, args.buf, 2 * args.len + 1);
+ strbuf_release(&args);
- strbuf_init(&envblk, 0);
- for (e = sorted_env; *e; e++) {
- strbuf_addstr(&envblk, *e);
- strbuf_addch(&envblk, '\0');
- }
- free(sorted_env);
- }
+ wenvblk = make_environment_block(deltaenv);
memset(&pi, 0, sizeof(pi));
- ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
- env ? envblk.buf : NULL, dir, &si, &pi);
+ ret = CreateProcessW(wcmd, wargs, NULL, NULL, TRUE, flags,
+ wenvblk, dir ? wdir : NULL, &si, &pi);
- if (env)
- strbuf_release(&envblk);
- strbuf_release(&args);
+ free(wenvblk);
+ free(wargs);
if (!ret) {
errno = ENOENT;
return (pid_t)pi.dwProcessId;
}
-static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
- int prepend_cmd)
+static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd)
{
- return mingw_spawnve_fd(cmd, argv, env, NULL, prepend_cmd, 0, 1, 2);
+ return mingw_spawnve_fd(cmd, argv, NULL, NULL, prepend_cmd, 0, 1, 2);
}
-pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **deltaenv,
const char *dir,
int fhin, int fhout, int fherr)
{
pid_t pid;
- char **path = get_path_split();
- char *prog = path_lookup(cmd, path, 0);
+ char *prog = path_lookup(cmd, 0);
if (!prog) {
errno = ENOENT;
if (interpr) {
const char *argv0 = argv[0];
- char *iprog = path_lookup(interpr, path, 1);
+ char *iprog = path_lookup(interpr, 1);
argv[0] = prog;
if (!iprog) {
errno = ENOENT;
pid = -1;
}
else {
- pid = mingw_spawnve_fd(iprog, argv, env, dir, 1,
+ pid = mingw_spawnve_fd(iprog, argv, deltaenv, dir, 1,
fhin, fhout, fherr);
free(iprog);
}
argv[0] = argv0;
}
else
- pid = mingw_spawnve_fd(prog, argv, env, dir, 0,
+ pid = mingw_spawnve_fd(prog, argv, deltaenv, dir, 0,
fhin, fhout, fherr);
free(prog);
}
- free_path_split(path);
return pid;
}
-static int try_shell_exec(const char *cmd, char *const *argv, char **env)
+static int try_shell_exec(const char *cmd, char *const *argv)
{
const char *interpr = parse_interpreter(cmd);
- char **path;
char *prog;
int pid = 0;
if (!interpr)
return 0;
- path = get_path_split();
- prog = path_lookup(interpr, path, 1);
+ prog = path_lookup(interpr, 1);
if (prog) {
int argc = 0;
const char **argv2;
while (argv[argc]) argc++;
- argv2 = xmalloc(sizeof(*argv) * (argc+1));
+ ALLOC_ARRAY(argv2, argc + 1);
argv2[0] = (char *)cmd; /* full path to the script file */
memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
- pid = mingw_spawnve(prog, argv2, env, 1);
+ pid = mingw_spawnv(prog, argv2, 1);
if (pid >= 0) {
int status;
if (waitpid(pid, &status, 0) < 0)
free(prog);
free(argv2);
}
- free_path_split(path);
return pid;
}
-static void mingw_execve(const char *cmd, char *const *argv, char *const *env)
+int mingw_execv(const char *cmd, char *const *argv)
{
/* check if git_command is a shell script */
- if (!try_shell_exec(cmd, argv, (char **)env)) {
+ if (!try_shell_exec(cmd, argv)) {
int pid, status;
- pid = mingw_spawnve(cmd, (const char **)argv, (char **)env, 0);
+ pid = mingw_spawnv(cmd, (const char **)argv, 0);
if (pid < 0)
- return;
+ return -1;
if (waitpid(pid, &status, 0) < 0)
status = 255;
exit(status);
}
+ return -1;
}
int mingw_execvp(const char *cmd, char *const *argv)
{
- char **path = get_path_split();
- char *prog = path_lookup(cmd, path, 0);
+ char *prog = path_lookup(cmd, 0);
if (prog) {
- mingw_execve(prog, argv, environ);
+ mingw_execv(prog, argv);
free(prog);
} else
errno = ENOENT;
- free_path_split(path);
- return -1;
-}
-
-int mingw_execv(const char *cmd, char *const *argv)
-{
- mingw_execve(cmd, argv, environ);
return -1;
}
return -1;
}
-static char **copy_environ(void)
-{
- char **env;
- int i = 0;
- while (environ[i])
- i++;
- env = xmalloc((i+1)*sizeof(*env));
- for (i = 0; environ[i]; i++)
- env[i] = xstrdup(environ[i]);
- env[i] = NULL;
- return env;
-}
-
-void free_environ(char **env)
+/*
+ * UTF-8 versions of getenv(), putenv() and unsetenv().
+ * Internally, they use the CRT's stock UNICODE routines
+ * to avoid data loss.
+ */
+char *mingw_getenv(const char *name)
{
- int i;
- for (i = 0; env[i]; i++)
- free(env[i]);
- free(env);
-}
+#define GETENV_MAX_RETAIN 64
+ static char *values[GETENV_MAX_RETAIN];
+ static int value_counter;
+ int len_key, len_value;
+ wchar_t *w_key;
+ char *value;
+ wchar_t w_value[32768];
-static int lookup_env(char **env, const char *name, size_t nmln)
-{
- int i;
+ if (!name || !*name)
+ return NULL;
- for (i = 0; env[i]; i++) {
- if (0 == strncmp(env[i], name, nmln)
- && '=' == env[i][nmln])
- /* matches */
- return i;
+ len_key = strlen(name) + 1;
+ /* We cannot use xcalloc() here because that uses getenv() itself */
+ w_key = calloc(len_key, sizeof(wchar_t));
+ if (!w_key)
+ die("Out of memory, (tried to allocate %u wchar_t's)", len_key);
+ xutftowcs(w_key, name, len_key);
+ len_value = GetEnvironmentVariableW(w_key, w_value, ARRAY_SIZE(w_value));
+ if (!len_value && GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
+ free(w_key);
+ return NULL;
}
- return -1;
-}
+ free(w_key);
-/*
- * If name contains '=', then sets the variable, otherwise it unsets it
- */
-static char **env_setenv(char **env, const char *name)
-{
- char *eq = strchrnul(name, '=');
- int i = lookup_env(env, name, eq-name);
+ len_value = len_value * 3 + 1;
+ /* We cannot use xcalloc() here because that uses getenv() itself */
+ value = calloc(len_value, sizeof(char));
+ if (!value)
+ die("Out of memory, (tried to allocate %u bytes)", len_value);
+ xwcstoutf(value, w_value, len_value);
- if (i < 0) {
- if (*eq) {
- for (i = 0; env[i]; i++)
- ;
- env = xrealloc(env, (i+2)*sizeof(*env));
- env[i] = xstrdup(name);
- env[i+1] = NULL;
- }
- }
- else {
- free(env[i]);
- if (*eq)
- env[i] = xstrdup(name);
- else
- for (; env[i]; i++)
- env[i] = env[i+1];
- }
- return env;
+ /*
+ * We return `value` which is an allocated value and the caller is NOT
+ * expecting to have to free it, so we keep a round-robin array,
+ * invalidating the buffer after GETENV_MAX_RETAIN getenv() calls.
+ */
+ free(values[value_counter]);
+ values[value_counter++] = value;
+ if (value_counter >= ARRAY_SIZE(values))
+ value_counter = 0;
+
+ return value;
}
-/*
- * Copies global environ and adjusts variables as specified by vars.
- */
-char **make_augmented_environ(const char *const *vars)
+int mingw_putenv(const char *namevalue)
{
- char **env = copy_environ();
+ int size;
+ wchar_t *wide, *equal;
+ BOOL result;
- while (*vars)
- env = env_setenv(env, *vars++);
- return env;
-}
+ if (!namevalue || !*namevalue)
+ return 0;
-#undef getenv
+ size = strlen(namevalue) * 2 + 1;
+ wide = calloc(size, sizeof(wchar_t));
+ if (!wide)
+ die("Out of memory, (tried to allocate %u wchar_t's)", size);
+ xutftowcs(wide, namevalue, size);
+ equal = wcschr(wide, L'=');
+ if (!equal)
+ result = SetEnvironmentVariableW(wide, NULL);
+ else {
+ *equal = L'\0';
+ result = SetEnvironmentVariableW(wide, equal + 1);
+ }
+ free(wide);
-/*
- * The system's getenv looks up the name in a case-insensitive manner.
- * This version tries a case-sensitive lookup and falls back to
- * case-insensitive if nothing was found. This is necessary because,
- * as a prominent example, CMD sets 'Path', but not 'PATH'.
- * Warning: not thread-safe.
- */
-static char *getenv_cs(const char *name)
-{
- size_t len = strlen(name);
- int i = lookup_env(environ, name, len);
- if (i >= 0)
- return environ[i] + len + 1; /* skip past name and '=' */
- return getenv(name);
-}
+ if (!result)
+ errno = err_win_to_posix(GetLastError());
-char *mingw_getenv(const char *name)
-{
- char *result = getenv_cs(name);
- if (!result && !strcmp(name, "TMPDIR")) {
- /* on Windows it is TMP and TEMP */
- result = getenv_cs("TMP");
- if (!result)
- result = getenv_cs("TEMP");
- }
- return result;
+ return result ? 0 : -1;
}
/*
else
ai->ai_canonname = NULL;
- sin = xmalloc(ai->ai_addrlen);
- memset(sin, 0, ai->ai_addrlen);
+ sin = xcalloc(1, ai->ai_addrlen);
sin->sin_family = AF_INET;
/* Note: getaddrinfo is supposed to allow service to be a string,
* which should be looked up using getservbyname. This is
WSAGetLastError());
for (name = libraries; *name; name++) {
- ipv6_dll = LoadLibrary(*name);
+ ipv6_dll = LoadLibraryExA(*name, NULL,
+ LOAD_LIBRARY_SEARCH_SYSTEM32);
if (!ipv6_dll)
continue;
{
DWORD attrs, gle;
int tries = 0;
+ wchar_t wpold[MAX_PATH], wpnew[MAX_PATH];
+ if (xutftowcs_path(wpold, pold) < 0 || xutftowcs_path(wpnew, pnew) < 0)
+ return -1;
/*
* Try native rename() first to get errno right.
* It is based on MoveFile(), which cannot overwrite existing files.
*/
- if (!rename(pold, pnew))
+ if (!_wrename(wpold, wpnew))
return 0;
if (errno != EEXIST)
return -1;
repeat:
- if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
+ if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
return 0;
/* TODO: translate more errors */
gle = GetLastError();
if (gle == ERROR_ACCESS_DENIED &&
- (attrs = GetFileAttributes(pnew)) != INVALID_FILE_ATTRIBUTES) {
+ (attrs = GetFileAttributesW(wpnew)) != INVALID_FILE_ATTRIBUTES) {
if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
- errno = EISDIR;
+ DWORD attrsold = GetFileAttributesW(wpold);
+ if (attrsold == INVALID_FILE_ATTRIBUTES ||
+ !(attrsold & FILE_ATTRIBUTE_DIRECTORY))
+ errno = EISDIR;
+ else if (!_wrmdir(wpnew))
+ goto repeat;
return -1;
}
if ((attrs & FILE_ATTRIBUTE_READONLY) &&
- SetFileAttributes(pnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
- if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
+ SetFileAttributesW(wpnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
+ if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
return 0;
gle = GetLastError();
/* revert file attributes on failure */
- SetFileAttributes(pnew, attrs);
+ SetFileAttributesW(wpnew, attrs);
}
}
if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
return si.dwAllocationGranularity;
}
+/* See https://msdn.microsoft.com/en-us/library/windows/desktop/ms724435.aspx */
+enum EXTENDED_NAME_FORMAT {
+ NameDisplay = 3,
+ NameUserPrincipal = 8
+};
+
+static char *get_extended_user_info(enum EXTENDED_NAME_FORMAT type)
+{
+ DECLARE_PROC_ADDR(secur32.dll, BOOL, GetUserNameExW,
+ enum EXTENDED_NAME_FORMAT, LPCWSTR, PULONG);
+ static wchar_t wbuffer[1024];
+ DWORD len;
+
+ if (!INIT_PROC_ADDR(GetUserNameExW))
+ return NULL;
+
+ len = ARRAY_SIZE(wbuffer);
+ if (GetUserNameExW(type, wbuffer, &len)) {
+ char *converted = xmalloc((len *= 3));
+ if (xwcstoutf(converted, wbuffer, len) >= 0)
+ return converted;
+ free(converted);
+ }
+
+ return NULL;
+}
+
+char *mingw_query_user_email(void)
+{
+ return get_extended_user_info(NameUserPrincipal);
+}
+
struct passwd *getpwuid(int uid)
{
+ static unsigned initialized;
static char user_name[100];
- static struct passwd p;
+ static struct passwd *p;
+ DWORD len;
- DWORD len = sizeof(user_name);
- if (!GetUserName(user_name, &len))
+ if (initialized)
+ return p;
+
+ len = sizeof(user_name);
+ if (!GetUserName(user_name, &len)) {
+ initialized = 1;
return NULL;
- p.pw_name = user_name;
- p.pw_gecos = "unknown";
- p.pw_dir = NULL;
- return &p;
+ }
+
+ p = xmalloc(sizeof(*p));
+ p->pw_name = user_name;
+ p->pw_gecos = get_extended_user_info(NameDisplay);
+ if (!p->pw_gecos)
+ p->pw_gecos = "unknown";
+ p->pw_dir = NULL;
+
+ initialized = 1;
+ return p;
}
static HANDLE timer_event;
if (timer_event)
SetEvent(timer_event); /* tell thread to terminate */
if (timer_thread) {
- int rc = WaitForSingleObject(timer_thread, 1000);
+ int rc = WaitForSingleObject(timer_thread, 10000);
if (rc == WAIT_TIMEOUT)
error("timer thread did not terminate timely");
else if (rc != WAIT_OBJECT_0)
}
}
-
-static const char *make_backslash_path(const char *path)
-{
- static char buf[PATH_MAX + 1];
- char *c;
-
- if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
- die("Too long path: %.*s", 60, path);
-
- for (c = buf; *c; c++) {
- if (*c == '/')
- *c = '\\';
- }
- return buf;
-}
-
-void mingw_open_html(const char *unixpath)
-{
- const char *htmlpath = make_backslash_path(unixpath);
- typedef HINSTANCE (WINAPI *T)(HWND, const char *,
- const char *, const char *, const char *, INT);
- T ShellExecute;
- HMODULE shell32;
- int r;
-
- shell32 = LoadLibrary("shell32.dll");
- if (!shell32)
- die("cannot load shell32.dll");
- ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
- if (!ShellExecute)
- die("cannot run browser");
-
- printf("Launching default browser to display HTML ...\n");
- r = (int)ShellExecute(NULL, "open", htmlpath, NULL, "\\", SW_SHOWNORMAL);
- FreeLibrary(shell32);
- /* see the MSDN documentation referring to the result codes here */
- if (r <= 32) {
- die("failed to launch browser for %.*s", MAX_PATH, unixpath);
- }
-}
-
int link(const char *oldpath, const char *newpath)
{
- typedef BOOL (WINAPI *T)(const char*, const char*, LPSECURITY_ATTRIBUTES);
- static T create_hard_link = NULL;
- if (!create_hard_link) {
- create_hard_link = (T) GetProcAddress(
- GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
- if (!create_hard_link)
- create_hard_link = (T)-1;
- }
- if (create_hard_link == (T)-1) {
- errno = ENOSYS;
+ wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH];
+ if (xutftowcs_path(woldpath, oldpath) < 0 ||
+ xutftowcs_path(wnewpath, newpath) < 0)
return -1;
- }
- if (!create_hard_link(newpath, oldpath, NULL)) {
+
+ if (!CreateHardLinkW(wnewpath, woldpath, NULL)) {
errno = err_win_to_posix(GetLastError());
return -1;
}
errno = EINVAL;
return -1;
}
+
+int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen)
+{
+ int upos = 0, wpos = 0;
+ const unsigned char *utf = (const unsigned char*) utfs;
+ if (!utf || !wcs || wcslen < 1) {
+ errno = EINVAL;
+ return -1;
+ }
+ /* reserve space for \0 */
+ wcslen--;
+ if (utflen < 0)
+ utflen = INT_MAX;
+
+ while (upos < utflen) {
+ int c = utf[upos++] & 0xff;
+ if (utflen == INT_MAX && c == 0)
+ break;
+
+ if (wpos >= wcslen) {
+ wcs[wpos] = 0;
+ errno = ERANGE;
+ return -1;
+ }
+
+ if (c < 0x80) {
+ /* ASCII */
+ wcs[wpos++] = c;
+ } else if (c >= 0xc2 && c < 0xe0 && upos < utflen &&
+ (utf[upos] & 0xc0) == 0x80) {
+ /* 2-byte utf-8 */
+ c = ((c & 0x1f) << 6);
+ c |= (utf[upos++] & 0x3f);
+ wcs[wpos++] = c;
+ } else if (c >= 0xe0 && c < 0xf0 && upos + 1 < utflen &&
+ !(c == 0xe0 && utf[upos] < 0xa0) && /* over-long encoding */
+ (utf[upos] & 0xc0) == 0x80 &&
+ (utf[upos + 1] & 0xc0) == 0x80) {
+ /* 3-byte utf-8 */
+ c = ((c & 0x0f) << 12);
+ c |= ((utf[upos++] & 0x3f) << 6);
+ c |= (utf[upos++] & 0x3f);
+ wcs[wpos++] = c;
+ } else if (c >= 0xf0 && c < 0xf5 && upos + 2 < utflen &&
+ wpos + 1 < wcslen &&
+ !(c == 0xf0 && utf[upos] < 0x90) && /* over-long encoding */
+ !(c == 0xf4 && utf[upos] >= 0x90) && /* > \u10ffff */
+ (utf[upos] & 0xc0) == 0x80 &&
+ (utf[upos + 1] & 0xc0) == 0x80 &&
+ (utf[upos + 2] & 0xc0) == 0x80) {
+ /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
+ c = ((c & 0x07) << 18);
+ c |= ((utf[upos++] & 0x3f) << 12);
+ c |= ((utf[upos++] & 0x3f) << 6);
+ c |= (utf[upos++] & 0x3f);
+ c -= 0x10000;
+ wcs[wpos++] = 0xd800 | (c >> 10);
+ wcs[wpos++] = 0xdc00 | (c & 0x3ff);
+ } else if (c >= 0xa0) {
+ /* invalid utf-8 byte, printable unicode char: convert 1:1 */
+ wcs[wpos++] = c;
+ } else {
+ /* invalid utf-8 byte, non-printable unicode: convert to hex */
+ static const char *hex = "0123456789abcdef";
+ wcs[wpos++] = hex[c >> 4];
+ if (wpos < wcslen)
+ wcs[wpos++] = hex[c & 0x0f];
+ }
+ }
+ wcs[wpos] = 0;
+ return wpos;
+}
+
+int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen)
+{
+ if (!wcs || !utf || utflen < 1) {
+ errno = EINVAL;
+ return -1;
+ }
+ utflen = WideCharToMultiByte(CP_UTF8, 0, wcs, -1, utf, utflen, NULL, NULL);
+ if (utflen)
+ return utflen - 1;
+ errno = ERANGE;
+ return -1;
+}
+
+static void setup_windows_environment(void)
+{
+ char *tmp = getenv("TMPDIR");
+
+ /* on Windows it is TMP and TEMP */
+ if (!tmp) {
+ if (!(tmp = getenv("TMP")))
+ tmp = getenv("TEMP");
+ if (tmp) {
+ setenv("TMPDIR", tmp, 1);
+ tmp = getenv("TMPDIR");
+ }
+ }
+
+ if (tmp) {
+ /*
+ * Convert all dir separators to forward slashes,
+ * to help shell commands called from the Git
+ * executable (by not mistaking the dir separators
+ * for escape characters).
+ */
+ convert_slashes(tmp);
+ }
+
+ /* simulate TERM to enable auto-color (see color.c) */
+ if (!getenv("TERM"))
+ setenv("TERM", "cygwin", 1);
+}
+
+/*
+ * Disable MSVCRT command line wildcard expansion (__getmainargs called from
+ * mingw startup code, see init.c in mingw runtime).
+ */
+int _CRT_glob = 0;
+
+typedef struct {
+ int newmode;
+} _startupinfo;
+
+extern int __wgetmainargs(int *argc, wchar_t ***argv, wchar_t ***env, int glob,
+ _startupinfo *si);
+
+static NORETURN void die_startup(void)
+{
+ fputs("fatal: not enough memory for initialization", stderr);
+ exit(128);
+}
+
+static void *malloc_startup(size_t size)
+{
+ void *result = malloc(size);
+ if (!result)
+ die_startup();
+ return result;
+}
+
+static char *wcstoutfdup_startup(char *buffer, const wchar_t *wcs, size_t len)
+{
+ len = xwcstoutf(buffer, wcs, len) + 1;
+ return memcpy(malloc_startup(len), buffer, len);
+}
+
+static void maybe_redirect_std_handle(const wchar_t *key, DWORD std_id, int fd,
+ DWORD desired_access, DWORD flags)
+{
+ DWORD create_flag = fd ? OPEN_ALWAYS : OPEN_EXISTING;
+ wchar_t buf[MAX_PATH];
+ DWORD max = ARRAY_SIZE(buf);
+ HANDLE handle;
+ DWORD ret = GetEnvironmentVariableW(key, buf, max);
+
+ if (!ret || ret >= max)
+ return;
+
+ /* make sure this does not leak into child processes */
+ SetEnvironmentVariableW(key, NULL);
+ if (!wcscmp(buf, L"off")) {
+ close(fd);
+ handle = GetStdHandle(std_id);
+ if (handle != INVALID_HANDLE_VALUE)
+ CloseHandle(handle);
+ return;
+ }
+ if (std_id == STD_ERROR_HANDLE && !wcscmp(buf, L"2>&1")) {
+ handle = GetStdHandle(STD_OUTPUT_HANDLE);
+ if (handle == INVALID_HANDLE_VALUE) {
+ close(fd);
+ handle = GetStdHandle(std_id);
+ if (handle != INVALID_HANDLE_VALUE)
+ CloseHandle(handle);
+ } else {
+ int new_fd = _open_osfhandle((intptr_t)handle, O_BINARY);
+ SetStdHandle(std_id, handle);
+ dup2(new_fd, fd);
+ /* do *not* close the new_fd: that would close stdout */
+ }
+ return;
+ }
+ handle = CreateFileW(buf, desired_access, 0, NULL, create_flag,
+ flags, NULL);
+ if (handle != INVALID_HANDLE_VALUE) {
+ int new_fd = _open_osfhandle((intptr_t)handle, O_BINARY);
+ SetStdHandle(std_id, handle);
+ dup2(new_fd, fd);
+ close(new_fd);
+ }
+}
+
+static void maybe_redirect_std_handles(void)
+{
+ maybe_redirect_std_handle(L"GIT_REDIRECT_STDIN", STD_INPUT_HANDLE, 0,
+ GENERIC_READ, FILE_ATTRIBUTE_NORMAL);
+ maybe_redirect_std_handle(L"GIT_REDIRECT_STDOUT", STD_OUTPUT_HANDLE, 1,
+ GENERIC_WRITE, FILE_ATTRIBUTE_NORMAL);
+ maybe_redirect_std_handle(L"GIT_REDIRECT_STDERR", STD_ERROR_HANDLE, 2,
+ GENERIC_WRITE, FILE_FLAG_NO_BUFFERING);
+}
+
+void mingw_startup(void)
+{
+ int i, maxlen, argc;
+ char *buffer;
+ wchar_t **wenv, **wargv;
+ _startupinfo si;
+
+ maybe_redirect_std_handles();
+
+ /* get wide char arguments and environment */
+ si.newmode = 0;
+ if (__wgetmainargs(&argc, &wargv, &wenv, _CRT_glob, &si) < 0)
+ die_startup();
+
+ /* determine size of argv and environ conversion buffer */
+ maxlen = wcslen(wargv[0]);
+ for (i = 1; i < argc; i++)
+ maxlen = max(maxlen, wcslen(wargv[i]));
+
+ /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
+ maxlen = 3 * maxlen + 1;
+ buffer = malloc_startup(maxlen);
+
+ /* convert command line arguments and environment to UTF-8 */
+ for (i = 0; i < argc; i++)
+ __argv[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen);
+ free(buffer);
+
+ /* fix Windows specific environment settings */
+ setup_windows_environment();
+
+ unset_environment_variables = xstrdup("PERL5LIB");
+
+ /* initialize critical section for waitpid pinfo_t list */
+ InitializeCriticalSection(&pinfo_cs);
+
+ /* set up default file mode and file modes for stdin/out/err */
+ _fmode = _O_BINARY;
+ _setmode(_fileno(stdin), _O_BINARY);
+ _setmode(_fileno(stdout), _O_BINARY);
+ _setmode(_fileno(stderr), _O_BINARY);
+
+ /* initialize Unicode console */
+ winansi_init();
+}
+
+int uname(struct utsname *buf)
+{
+ unsigned v = (unsigned)GetVersion();
+ memset(buf, 0, sizeof(*buf));
+ xsnprintf(buf->sysname, sizeof(buf->sysname), "Windows");
+ xsnprintf(buf->release, sizeof(buf->release),
+ "%u.%u", v & 0xff, (v >> 8) & 0xff);
+ /* assuming NT variants only.. */
+ xsnprintf(buf->version, sizeof(buf->version),
+ "%u", (v >> 16) & 0x7fff);
+ return 0;
+}