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Diffstat (limited to 'compat/mingw.c')
-rw-r--r--compat/mingw.c240
1 files changed, 199 insertions, 41 deletions
diff --git a/compat/mingw.c b/compat/mingw.c
index fecb98bcff..3baaa4dfae 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -304,23 +304,6 @@ int mingw_open (const char *filename, int oflags, ...)
return fd;
}
-#undef write
-ssize_t mingw_write(int fd, const void *buf, size_t count)
-{
- /*
- * While write() calls to a file on a local disk are translated
- * into WriteFile() calls with a maximum size of 64KB on Windows
- * XP and 256KB on Vista, no such cap is placed on writes to
- * files over the network on Windows XP. Unfortunately, there
- * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86;
- * bigger writes fail on Windows XP.
- * So we cap to a nice 31MB here to avoid write failures over
- * the net without changing the number of WriteFile() calls in
- * the local case.
- */
- return write(fd, buf, min(count, 31 * 1024 * 1024));
-}
-
static BOOL WINAPI ctrl_ignore(DWORD type)
{
return TRUE;
@@ -458,7 +441,7 @@ static int do_lstat(int follow, const char *file_name, struct stat *buf)
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;
@@ -848,9 +831,10 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
const char *dir,
int prepend_cmd, int fhin, int fhout, int fherr)
{
- STARTUPINFO si;
+ STARTUPINFOW si;
PROCESS_INFORMATION pi;
struct strbuf envblk, args;
+ wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs;
unsigned flags;
BOOL ret;
@@ -882,9 +866,14 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
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);
@@ -903,6 +892,10 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
free(quoted);
}
+ wargs = xmalloc((2 * args.len + 1) * sizeof(wchar_t));
+ xutftowcs(wargs, args.buf, 2 * args.len + 1);
+ strbuf_release(&args);
+
if (env) {
int count = 0;
char **e, **sorted_env;
@@ -924,12 +917,12 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
}
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,
+ env ? envblk.buf : NULL, dir ? wdir : NULL, &si, &pi);
if (env)
strbuf_release(&envblk);
- strbuf_release(&args);
+ free(wargs);
if (!ret) {
errno = ENOENT;
@@ -958,10 +951,9 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
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, environ, NULL, prepend_cmd, 0, 1, 2);
}
pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
@@ -1003,7 +995,7 @@ pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
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;
@@ -1021,7 +1013,7 @@ static int try_shell_exec(const char *cmd, char *const *argv, char **env)
argv2 = xmalloc(sizeof(*argv) * (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)
@@ -1036,19 +1028,20 @@ static int try_shell_exec(const char *cmd, char *const *argv, char **env)
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)
@@ -1057,7 +1050,7 @@ int mingw_execvp(const char *cmd, char *const *argv)
char *prog = path_lookup(cmd, path, 0);
if (prog) {
- mingw_execve(prog, argv, environ);
+ mingw_execv(prog, argv);
free(prog);
} else
errno = ENOENT;
@@ -1066,12 +1059,6 @@ int mingw_execvp(const char *cmd, char *const *argv)
return -1;
}
-int mingw_execv(const char *cmd, char *const *argv)
-{
- mingw_execve(cmd, argv, environ);
- return -1;
-}
-
int mingw_kill(pid_t pid, int sig)
{
if (pid > 0 && sig == SIGTERM) {
@@ -1840,3 +1827,174 @@ pid_t waitpid(pid_t pid, int *status, int options)
errno = EINVAL;
return -1;
}
+
+int mingw_offset_1st_component(const char *path)
+{
+ int offset = 0;
+ if (has_dos_drive_prefix(path))
+ offset = 2;
+
+ /* unc paths */
+ else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
+
+ /* skip server name */
+ char *pos = strpbrk(path + 2, "\\/");
+ if (!pos)
+ return 0; /* Error: malformed unc path */
+
+ do {
+ pos++;
+ } while (*pos && !is_dir_sep(*pos));
+
+ offset = pos - path;
+ }
+
+ return offset + is_dir_sep(path[offset]);
+}
+
+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;
+}
+
+/*
+ * 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()
+{
+ fputs("fatal: not enough memory for initialization", stderr);
+ exit(128);
+}
+
+void mingw_startup()
+{
+ int i, len, maxlen, argc;
+ char *buffer;
+ wchar_t **wenv, **wargv;
+ _startupinfo si;
+
+ /* 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(_wpgmptr);
+ 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 = xmalloc(maxlen);
+
+ /* convert command line arguments and environment to UTF-8 */
+ len = xwcstoutf(buffer, _wpgmptr, maxlen);
+ __argv[0] = xmemdupz(buffer, len);
+ for (i = 1; i < argc; i++) {
+ len = xwcstoutf(buffer, wargv[i], maxlen);
+ __argv[i] = xmemdupz(buffer, len);
+ }
+ free(buffer);
+
+ /* 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();
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-28 14:25:29 +0000