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-rw-r--r--compat/mingw.c1535
1 files changed, 1207 insertions, 328 deletions
diff --git a/compat/mingw.c b/compat/mingw.c
index 6b5b5b2c70..70f3191a4f 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1,11 +1,14 @@
#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 <shellapi.h>
+static const int delay[] = { 0, 1, 10, 20, 40 };
-static int err_win_to_posix(DWORD winerr)
+int err_win_to_posix(DWORD winerr)
{
int error = ENOSYS;
switch(winerr) {
@@ -118,47 +121,335 @@ static int err_win_to_posix(DWORD winerr)
return error;
}
-#undef open
+static inline int is_file_in_use_error(DWORD errcode)
+{
+ switch (errcode) {
+ case ERROR_SHARING_VIOLATION:
+ case ERROR_ACCESS_DENIED:
+ return 1;
+ }
+
+ return 0;
+}
+
+static int read_yes_no_answer(void)
+{
+ char answer[1024];
+
+ if (fgets(answer, sizeof(answer), stdin)) {
+ size_t answer_len = strlen(answer);
+ int got_full_line = 0, c;
+
+ /* remove the newline */
+ if (answer_len >= 2 && answer[answer_len-2] == '\r') {
+ answer[answer_len-2] = '\0';
+ got_full_line = 1;
+ } else if (answer_len >= 1 && answer[answer_len-1] == '\n') {
+ answer[answer_len-1] = '\0';
+ got_full_line = 1;
+ }
+ /* flush the buffer in case we did not get the full line */
+ if (!got_full_line)
+ while ((c = getchar()) != EOF && c != '\n')
+ ;
+ } else
+ /* we could not read, return the
+ * default answer which is no */
+ return 0;
+
+ if (tolower(answer[0]) == 'y' && !answer[1])
+ return 1;
+ if (!strncasecmp(answer, "yes", sizeof(answer)))
+ return 1;
+ if (tolower(answer[0]) == 'n' && !answer[1])
+ return 0;
+ if (!strncasecmp(answer, "no", sizeof(answer)))
+ return 0;
+
+ /* did not find an answer we understand */
+ return -1;
+}
+
+static int ask_yes_no_if_possible(const char *format, ...)
+{
+ char question[4096];
+ const char *retry_hook[] = { NULL, NULL, NULL };
+ va_list args;
+
+ va_start(args, format);
+ vsnprintf(question, sizeof(question), format, args);
+ va_end(args);
+
+ if ((retry_hook[0] = mingw_getenv("GIT_ASK_YESNO"))) {
+ retry_hook[1] = question;
+ return !run_command_v_opt(retry_hook, 0);
+ }
+
+ if (!isatty(_fileno(stdin)) || !isatty(_fileno(stderr)))
+ return 0;
+
+ while (1) {
+ int answer;
+ fprintf(stderr, "%s (y/n) ", question);
+
+ if ((answer = read_yes_no_answer()) >= 0)
+ return answer;
+
+ fprintf(stderr, "Sorry, I did not understand your answer. "
+ "Please type 'y' or 'n'\n");
+ }
+}
+
+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 */
+ _wchmod(wpathname, 0666);
+ while ((ret = _wunlink(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
+ if (!is_file_in_use_error(GetLastError()))
+ break;
+ /*
+ * We assume that some other process had the source or
+ * destination file open at the wrong moment and retry.
+ * In order to give the other process a higher chance to
+ * complete its operation, we give up our time slice now.
+ * If we have to retry again, we do sleep a bit.
+ */
+ Sleep(delay[tries]);
+ tries++;
+ }
+ 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 = _wunlink(wpathname);
+ return ret;
+}
+
+static int is_dir_empty(const wchar_t *wpath)
+{
+ WIN32_FIND_DATAW findbuf;
+ HANDLE handle;
+ 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 (!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);
+ return 0;
+}
+
+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 = _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(wpathname)) {
+ errno = ENOTEMPTY;
+ break;
+ }
+ /*
+ * We assume that some other process had the source or
+ * destination file open at the wrong moment and retry.
+ * In order to give the other process a higher chance to
+ * complete its operation, we give up our time slice now.
+ * If we have to retry again, we do sleep a bit.
+ */
+ Sleep(delay[tries]);
+ tries++;
+ }
+ 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 = _wrmdir(wpathname);
+ return ret;
+}
+
+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);
+ return ret;
+}
+
int mingw_open (const char *filename, int oflags, ...)
{
va_list args;
unsigned mode;
int fd;
+ wchar_t wfilename[MAX_PATH];
va_start(args, oflags);
mode = va_arg(args, int);
va_end(args);
- if (!strcmp(filename, "/dev/null"))
+ if (filename && !strcmp(filename, "/dev/null"))
filename = "nul";
- fd = open(filename, oflags, mode);
+ if (xutftowcs_path(wfilename, filename) < 0)
+ return -1;
+ fd = _wopen(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;
}
return fd;
}
-static inline time_t filetime_to_time_t(const FILETIME *ft)
+static BOOL WINAPI ctrl_ignore(DWORD type)
+{
+ return TRUE;
+}
+
+#undef fgetc
+int mingw_fgetc(FILE *stream)
+{
+ int ch;
+ if (!isatty(_fileno(stream)))
+ return fgetc(stream);
+
+ SetConsoleCtrlHandler(ctrl_ignore, TRUE);
+ while (1) {
+ ch = fgetc(stream);
+ if (ch != EOF || GetLastError() != ERROR_OPERATION_ABORTED)
+ break;
+
+ /* Ctrl+C was pressed, simulate SIGINT and retry */
+ mingw_raise(SIGINT);
+ }
+ SetConsoleCtrlHandler(ctrl_ignore, FALSE);
+ return ch;
+}
+
+#undef fopen
+FILE *mingw_fopen (const char *filename, const char *otype)
+{
+ FILE *file;
+ wchar_t wfilename[MAX_PATH], wotype[4];
+ if (filename && !strcmp(filename, "/dev/null"))
+ filename = "nul";
+ if (xutftowcs_path(wfilename, filename) < 0 ||
+ xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
+ return NULL;
+ file = _wfopen(wfilename, wotype);
+ return file;
+}
+
+FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
+{
+ FILE *file;
+ wchar_t wfilename[MAX_PATH], wotype[4];
+ if (filename && !strcmp(filename, "/dev/null"))
+ filename = "nul";
+ if (xutftowcs_path(wfilename, filename) < 0 ||
+ xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
+ return NULL;
+ file = _wfreopen(wfilename, wotype, stream);
+ return file;
+}
+
+#undef fflush
+int mingw_fflush(FILE *stream)
+{
+ int ret = fflush(stream);
+
+ /*
+ * write() is used behind the scenes of stdio output functions.
+ * Since git code does not check for errors after each stdio write
+ * operation, it can happen that write() is called by a later
+ * stdio function even if an earlier write() call failed. In the
+ * case of a pipe whose readable end was closed, only the first
+ * call to write() reports EPIPE on Windows. Subsequent write()
+ * calls report EINVAL. It is impossible to notice whether this
+ * fflush invocation triggered such a case, therefore, we have to
+ * catch all EINVAL errors whole-sale.
+ */
+ if (ret && errno == EINVAL)
+ errno = EPIPE;
+
+ return ret;
+}
+
+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.
+ */
+static inline long long filetime_to_hnsec(const FILETIME *ft)
{
long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
- winTime -= 116444736000000000LL; /* Windows to Unix Epoch conversion */
- winTime /= 10000000; /* Nano to seconds resolution */
- return (time_t)winTime;
+ /* Windows to Unix Epoch conversion */
+ return winTime - 116444736000000000LL;
+}
+
+static inline time_t filetime_to_time_t(const FILETIME *ft)
+{
+ return (time_t)(filetime_to_hnsec(ft) / 10000000);
}
/* We keep the do_lstat code in a separate function to avoid recursion.
* When a path ends with a slash, the stat will fail with ENOENT. In
* this case, we strip the trailing slashes and stat again.
+ *
+ * If follow is true then act like stat() and report on the link
+ * target. Otherwise report on the link itself.
*/
-static int do_lstat(const char *file_name, struct stat *buf)
+static int do_lstat(int follow, const char *file_name, struct stat *buf)
{
WIN32_FILE_ATTRIBUTE_DATA fdata;
+ wchar_t wfilename[MAX_PATH];
+ if (xutftowcs_path(wfilename, file_name) < 0)
+ return -1;
- if (!(errno = get_file_attr(file_name, &fdata))) {
+ if (GetFileAttributesExW(wfilename, GetFileExInfoStandard, &fdata)) {
buf->st_ino = 0;
buf->st_gid = 0;
buf->st_uid = 0;
@@ -170,8 +461,44 @@ static int do_lstat(const char *file_name, struct stat *buf)
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 (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+ 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)) {
+ if (follow) {
+ char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
+ buf->st_size = readlink(file_name, buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
+ } else {
+ buf->st_mode = S_IFLNK;
+ }
+ buf->st_mode |= S_IREAD;
+ if (!(findbuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
+ buf->st_mode |= S_IWRITE;
+ }
+ FindClose(handle);
+ }
+ }
return 0;
}
+ 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;
+ default:
+ errno = ENOENT;
+ break;
+ }
return -1;
}
@@ -181,12 +508,12 @@ static int do_lstat(const char *file_name, struct stat *buf)
* complete. Note that Git stat()s are redirected to mingw_lstat()
* too, since Windows doesn't really handle symlinks that well.
*/
-int mingw_lstat(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(file_name, buf))
+ if (!do_lstat(follow, file_name, buf))
return 0;
/* if file_name ended in a '/', Windows returned ENOENT;
@@ -205,10 +532,18 @@ int mingw_lstat(const char *file_name, struct stat *buf)
memcpy(alt_name, file_name, namelen);
alt_name[namelen] = 0;
- return do_lstat(alt_name, buf);
+ return do_lstat(follow, alt_name, buf);
+}
+
+int mingw_lstat(const char *file_name, struct stat *buf)
+{
+ return do_stat_internal(0, file_name, buf);
+}
+int mingw_stat(const char *file_name, struct stat *buf)
+{
+ return do_stat_internal(1, file_name, buf);
}
-#undef fstat
int mingw_fstat(int fd, struct stat *buf)
{
HANDLE fh = (HANDLE)_get_osfhandle(fd);
@@ -251,19 +586,44 @@ int mingw_utime (const char *file_name, const struct utimbuf *times)
{
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 */
- if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
- return -1;
+ attrs = GetFileAttributesW(wfilename);
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors here; open() will report them */
+ SetFileAttributesW(wfilename, attrs & ~FILE_ATTRIBUTE_READONLY);
+ }
+
+ if ((fh = _wopen(wfilename, O_RDWR | O_BINARY)) < 0) {
+ rc = -1;
+ goto revert_attrs;
+ }
- time_t_to_filetime(times->modtime, &mft);
- time_t_to_filetime(times->actime, &aft);
+ if (times) {
+ time_t_to_filetime(times->modtime, &mft);
+ time_t_to_filetime(times->actime, &aft);
+ } else {
+ GetSystemTimeAsFileTime(&mft);
+ aft = mft;
+ }
if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
errno = EINVAL;
rc = -1;
} else
rc = 0;
close(fh);
+
+revert_attrs:
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors again */
+ SetFileAttributesW(wfilename, attrs);
+ }
return rc;
}
@@ -273,6 +633,18 @@ unsigned int sleep (unsigned int seconds)
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);
@@ -283,129 +655,37 @@ int mkstemp(char *template)
int gettimeofday(struct timeval *tv, void *tz)
{
- SYSTEMTIME st;
- struct tm tm;
- GetSystemTime(&st);
- tm.tm_year = st.wYear-1900;
- tm.tm_mon = st.wMonth-1;
- tm.tm_mday = st.wDay;
- tm.tm_hour = st.wHour;
- tm.tm_min = st.wMinute;
- tm.tm_sec = st.wSecond;
- tv->tv_sec = tm_to_time_t(&tm);
- if (tv->tv_sec < 0)
- return -1;
- tv->tv_usec = st.wMilliseconds*1000;
+ FILETIME ft;
+ long long hnsec;
+
+ GetSystemTimeAsFileTime(&ft);
+ hnsec = filetime_to_hnsec(&ft);
+ tv->tv_sec = hnsec / 10000000;
+ tv->tv_usec = (hnsec % 10000000) / 10;
return 0;
}
int pipe(int filedes[2])
{
- int fd;
- HANDLE h[2], parent;
+ HANDLE h[2];
- if (_pipe(filedes, 8192, 0) < 0)
- return -1;
-
- parent = GetCurrentProcess();
-
- if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[0]),
- parent, &h[0], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
- close(filedes[0]);
- close(filedes[1]);
- return -1;
- }
- if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[1]),
- parent, &h[1], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
- close(filedes[0]);
- close(filedes[1]);
- CloseHandle(h[0]);
+ /* this creates non-inheritable handles */
+ if (!CreatePipe(&h[0], &h[1], NULL, 8192)) {
+ errno = err_win_to_posix(GetLastError());
return -1;
}
- fd = _open_osfhandle((int)h[0], O_NOINHERIT);
- if (fd < 0) {
- close(filedes[0]);
- close(filedes[1]);
+ filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT);
+ if (filedes[0] < 0) {
CloseHandle(h[0]);
CloseHandle(h[1]);
return -1;
}
- close(filedes[0]);
- filedes[0] = fd;
- fd = _open_osfhandle((int)h[1], O_NOINHERIT);
- if (fd < 0) {
+ filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT);
+ if (filedes[0] < 0) {
close(filedes[0]);
- close(filedes[1]);
CloseHandle(h[1]);
return -1;
}
- close(filedes[1]);
- filedes[1] = fd;
- return 0;
-}
-
-int poll(struct pollfd *ufds, unsigned int nfds, int timeout)
-{
- int i, pending;
-
- if (timeout >= 0) {
- if (nfds == 0) {
- Sleep(timeout);
- return 0;
- }
- return errno = EINVAL, error("poll timeout not supported");
- }
-
- /* When there is only one fd to wait for, then we pretend that
- * input is available and let the actual wait happen when the
- * caller invokes read().
- */
- if (nfds == 1) {
- if (!(ufds[0].events & POLLIN))
- return errno = EINVAL, error("POLLIN not set");
- ufds[0].revents = POLLIN;
- return 0;
- }
-
-repeat:
- pending = 0;
- for (i = 0; i < nfds; i++) {
- DWORD avail = 0;
- HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd);
- if (h == INVALID_HANDLE_VALUE)
- return -1; /* errno was set */
-
- if (!(ufds[i].events & POLLIN))
- return errno = EINVAL, error("POLLIN not set");
-
- /* this emulation works only for pipes */
- if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) {
- int err = GetLastError();
- if (err == ERROR_BROKEN_PIPE) {
- ufds[i].revents = POLLHUP;
- pending++;
- } else {
- errno = EINVAL;
- return error("PeekNamedPipe failed,"
- " GetLastError: %u", err);
- }
- } else if (avail) {
- ufds[i].revents = POLLIN;
- pending++;
- } else
- ufds[i].revents = 0;
- }
- if (!pending) {
- /* The only times that we spin here is when the process
- * that is connected through the pipes is waiting for
- * its own input data to become available. But since
- * the process (pack-objects) is itself CPU intensive,
- * it will happily pick up the time slice that we are
- * relinquishing here.
- */
- Sleep(0);
- goto repeat;
- }
return 0;
}
@@ -423,30 +703,18 @@ struct tm *localtime_r(const time_t *timep, struct tm *result)
return result;
}
-#undef getcwd
char *mingw_getcwd(char *pointer, int len)
{
int i;
- char *ret = getcwd(pointer, len);
- if (!ret)
- return ret;
+ wchar_t wpointer[MAX_PATH];
+ if (!_wgetcwd(wpointer, ARRAY_SIZE(wpointer)))
+ return NULL;
+ if (xwcstoutf(pointer, wpointer, len) < 0)
+ return NULL;
for (i = 0; pointer[i]; i++)
if (pointer[i] == '\\')
pointer[i] = '/';
- return ret;
-}
-
-#undef getenv
-char *mingw_getenv(const char *name)
-{
- char *result = getenv(name);
- if (!result && !strcmp(name, "TMPDIR")) {
- /* on Windows it is TMP and TEMP */
- result = getenv("TMP");
- if (!result)
- result = getenv("TEMP");
- }
- return result;
+ return pointer;
}
/*
@@ -548,7 +816,7 @@ static const char *parse_interpreter(const char *cmd)
*/
static char **get_path_split(void)
{
- char *p, **path, *envpath = getenv("PATH");
+ char *p, **path, *envpath = mingw_getenv("PATH");
int i, n = 0;
if (!envpath || !*envpath)
@@ -613,7 +881,7 @@ static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_on
}
/*
- * Determines the absolute path of cmd using the the split path in 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)
@@ -631,20 +899,63 @@ static char *path_lookup(const char *cmd, char **path, int exe_only)
return prog;
}
-static int env_compare(const void *a, const void *b)
+static int do_putenv(char **env, const char *name, int size, int free_old);
+
+/* used number of elements of environ array, including terminating NULL */
+static int environ_size = 0;
+/* allocated size of environ array, in bytes */
+static int environ_alloc = 0;
+
+/*
+ * Create environment block suitable for CreateProcess. Merges current
+ * process environment and the supplied environment changes.
+ */
+static wchar_t *make_environment_block(char **deltaenv)
{
- char *const *ea = a;
- char *const *eb = b;
- return strcasecmp(*ea, *eb);
+ wchar_t *wenvblk = NULL;
+ char **tmpenv;
+ int i = 0, size = environ_size, wenvsz = 0, wenvpos = 0;
+
+ while (deltaenv && deltaenv[i])
+ i++;
+
+ /* copy the environment, leaving space for changes */
+ tmpenv = xmalloc((size + i) * sizeof(char*));
+ memcpy(tmpenv, environ, size * sizeof(char*));
+
+ /* merge supplied environment changes into the temporary environment */
+ for (i = 0; deltaenv && deltaenv[i]; i++)
+ size = do_putenv(tmpenv, deltaenv[i], size, 0);
+
+ /* create environment block from temporary environment */
+ for (i = 0; tmpenv[i]; i++) {
+ size = 2 * strlen(tmpenv[i]) + 2; /* +2 for final \0 */
+ ALLOC_GROW(wenvblk, (wenvpos + size) * sizeof(wchar_t), wenvsz);
+ wenvpos += xutftowcs(&wenvblk[wenvpos], tmpenv[i], size) + 1;
+ }
+ /* add final \0 terminator */
+ wenvblk[wenvpos] = 0;
+ free(tmpenv);
+ return wenvblk;
}
-static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
- int prepend_cmd)
+struct pinfo_t {
+ struct pinfo_t *next;
+ pid_t pid;
+ HANDLE proc;
+};
+static struct pinfo_t *pinfo = NULL;
+CRITICAL_SECTION pinfo_cs;
+
+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;
/* Determine whether or not we are associated to a console */
@@ -661,7 +972,7 @@ static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
* 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
@@ -669,15 +980,19 @@ static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
* 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(0);
- si.hStdOutput = (HANDLE) _get_osfhandle(1);
- si.hStdError = (HANDLE) _get_osfhandle(2);
+ 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);
@@ -696,43 +1011,54 @@ static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
free(quoted);
}
- if (env) {
- int count = 0;
- char **e, **sorted_env;
-
- for (e = env; *e; e++)
- count++;
+ wargs = xmalloc((2 * args.len + 1) * sizeof(wchar_t));
+ xutftowcs(wargs, args.buf, 2 * args.len + 1);
+ strbuf_release(&args);
- /* 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);
-
- 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, NULL, &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 -1;
}
CloseHandle(pi.hThread);
- return (pid_t)pi.hProcess;
+
+ /*
+ * The process ID is the human-readable identifier of the process
+ * that we want to present in log and error messages. The handle
+ * is not useful for this purpose. But we cannot close it, either,
+ * because it is not possible to turn a process ID into a process
+ * handle after the process terminated.
+ * Keep the handle in a list for waitpid.
+ */
+ EnterCriticalSection(&pinfo_cs);
+ {
+ struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t));
+ info->pid = pi.dwProcessId;
+ info->proc = pi.hProcess;
+ info->next = pinfo;
+ pinfo = info;
+ }
+ LeaveCriticalSection(&pinfo_cs);
+
+ return (pid_t)pi.dwProcessId;
}
-pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
+static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd)
+{
+ return mingw_spawnve_fd(cmd, argv, NULL, NULL, prepend_cmd, 0, 1, 2);
+}
+
+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();
@@ -754,20 +1080,22 @@ pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
pid = -1;
}
else {
- pid = mingw_spawnve(iprog, argv, env, 1);
+ pid = mingw_spawnve_fd(iprog, argv, deltaenv, dir, 1,
+ fhin, fhout, fherr);
free(iprog);
}
argv[0] = argv0;
}
else
- pid = mingw_spawnve(prog, argv, env, 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;
@@ -785,7 +1113,7 @@ 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)
@@ -800,126 +1128,362 @@ 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;
}
-void mingw_execvp(const char *cmd, char *const *argv)
+int mingw_execvp(const char *cmd, char *const *argv)
{
char **path = get_path_split();
char *prog = path_lookup(cmd, path, 0);
if (prog) {
- mingw_execve(prog, argv, environ);
+ mingw_execv(prog, argv);
free(prog);
} else
errno = ENOENT;
free_path_split(path);
+ return -1;
}
-static char **copy_environ(void)
+int mingw_kill(pid_t pid, int sig)
{
- 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;
+ if (pid > 0 && sig == SIGTERM) {
+ HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
+
+ if (TerminateProcess(h, -1)) {
+ CloseHandle(h);
+ return 0;
+ }
+
+ errno = err_win_to_posix(GetLastError());
+ CloseHandle(h);
+ return -1;
+ } else if (pid > 0 && sig == 0) {
+ HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
+ if (h) {
+ CloseHandle(h);
+ return 0;
+ }
+ }
+
+ errno = EINVAL;
+ return -1;
}
-void free_environ(char **env)
+/*
+ * Compare environment entries by key (i.e. stopping at '=' or '\0').
+ */
+static int compareenv(const void *v1, const void *v2)
{
- int i;
- for (i = 0; env[i]; i++)
- free(env[i]);
- free(env);
+ const char *e1 = *(const char**)v1;
+ const char *e2 = *(const char**)v2;
+
+ for (;;) {
+ int c1 = *e1++;
+ int c2 = *e2++;
+ c1 = (c1 == '=') ? 0 : tolower(c1);
+ c2 = (c2 == '=') ? 0 : tolower(c2);
+ if (c1 > c2)
+ return 1;
+ if (c1 < c2)
+ return -1;
+ if (c1 == 0)
+ return 0;
+ }
}
-static int lookup_env(char **env, const char *name, size_t nmln)
+static int bsearchenv(char **env, const char *name, size_t size)
{
- int i;
-
- for (i = 0; env[i]; i++) {
- if (0 == strncmp(env[i], name, nmln)
- && '=' == env[i][nmln])
- /* matches */
- return i;
+ unsigned low = 0, high = size;
+ while (low < high) {
+ unsigned mid = low + ((high - low) >> 1);
+ int cmp = compareenv(&env[mid], &name);
+ if (cmp < 0)
+ low = mid + 1;
+ else if (cmp > 0)
+ high = mid;
+ else
+ return mid;
}
- return -1;
+ return ~low; /* not found, return 1's complement of insert position */
}
/*
* If name contains '=', then sets the variable, otherwise it unsets it
+ * Size includes the terminating NULL. Env must have room for size + 1 entries
+ * (in case of insert). Returns the new size. Optionally frees removed entries.
*/
-static char **env_setenv(char **env, const char *name)
+static int do_putenv(char **env, const char *name, int size, int free_old)
{
- char *eq = strchrnul(name, '=');
- int i = lookup_env(env, name, eq-name);
+ int i = bsearchenv(env, name, size - 1);
- 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;
+ /* optionally free removed / replaced entry */
+ if (i >= 0 && free_old)
+ free(env[i]);
+
+ if (strchr(name, '=')) {
+ /* if new value ('key=value') is specified, insert or replace entry */
+ if (i < 0) {
+ i = ~i;
+ memmove(&env[i + 1], &env[i], (size - i) * sizeof(char*));
+ size++;
}
+ env[i] = (char*) name;
+ } else if (i >= 0) {
+ /* otherwise ('key') remove existing entry */
+ size--;
+ memmove(&env[i], &env[i + 1], (size - i) * sizeof(char*));
}
- else {
- free(env[i]);
- if (*eq)
- env[i] = xstrdup(name);
+ return size;
+}
+
+char *mingw_getenv(const char *name)
+{
+ char *value;
+ int pos = bsearchenv(environ, name, environ_size - 1);
+ if (pos < 0)
+ return NULL;
+ value = strchr(environ[pos], '=');
+ return value ? &value[1] : NULL;
+}
+
+int mingw_putenv(const char *namevalue)
+{
+ ALLOC_GROW(environ, (environ_size + 1) * sizeof(char*), environ_alloc);
+ environ_size = do_putenv(environ, namevalue, environ_size, 1);
+ return 0;
+}
+
+/*
+ * Note, this isn't a complete replacement for getaddrinfo. It assumes
+ * that service contains a numerical port, or that it is null. It
+ * does a simple search using gethostbyname, and returns one IPv4 host
+ * if one was found.
+ */
+static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
+ const struct addrinfo *hints,
+ struct addrinfo **res)
+{
+ struct hostent *h = NULL;
+ struct addrinfo *ai;
+ struct sockaddr_in *sin;
+
+ if (node) {
+ h = gethostbyname(node);
+ if (!h)
+ return WSAGetLastError();
+ }
+
+ ai = xmalloc(sizeof(struct addrinfo));
+ *res = ai;
+ ai->ai_flags = 0;
+ ai->ai_family = AF_INET;
+ ai->ai_socktype = hints ? hints->ai_socktype : 0;
+ switch (ai->ai_socktype) {
+ case SOCK_STREAM:
+ ai->ai_protocol = IPPROTO_TCP;
+ break;
+ case SOCK_DGRAM:
+ ai->ai_protocol = IPPROTO_UDP;
+ break;
+ default:
+ ai->ai_protocol = 0;
+ break;
+ }
+ ai->ai_addrlen = sizeof(struct sockaddr_in);
+ if (hints && (hints->ai_flags & AI_CANONNAME))
+ ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
+ else
+ ai->ai_canonname = NULL;
+
+ 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
+ * currently not implemented */
+ if (service)
+ sin->sin_port = htons(atoi(service));
+ if (h)
+ sin->sin_addr = *(struct in_addr *)h->h_addr;
+ else if (hints && (hints->ai_flags & AI_PASSIVE))
+ sin->sin_addr.s_addr = INADDR_ANY;
+ else
+ sin->sin_addr.s_addr = INADDR_LOOPBACK;
+ ai->ai_addr = (struct sockaddr *)sin;
+ ai->ai_next = NULL;
+ return 0;
+}
+
+static void WSAAPI freeaddrinfo_stub(struct addrinfo *res)
+{
+ free(res->ai_canonname);
+ free(res->ai_addr);
+ free(res);
+}
+
+static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen,
+ char *host, DWORD hostlen,
+ char *serv, DWORD servlen, int flags)
+{
+ const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
+ if (sa->sa_family != AF_INET)
+ return EAI_FAMILY;
+ if (!host && !serv)
+ return EAI_NONAME;
+
+ if (host && hostlen > 0) {
+ struct hostent *ent = NULL;
+ if (!(flags & NI_NUMERICHOST))
+ ent = gethostbyaddr((const char *)&sin->sin_addr,
+ sizeof(sin->sin_addr), AF_INET);
+
+ if (ent)
+ snprintf(host, hostlen, "%s", ent->h_name);
+ else if (flags & NI_NAMEREQD)
+ return EAI_NONAME;
+ else
+ snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr));
+ }
+
+ if (serv && servlen > 0) {
+ struct servent *ent = NULL;
+ if (!(flags & NI_NUMERICSERV))
+ ent = getservbyport(sin->sin_port,
+ flags & NI_DGRAM ? "udp" : "tcp");
+
+ if (ent)
+ snprintf(serv, servlen, "%s", ent->s_name);
else
- for (; env[i]; i++)
- env[i] = env[i+1];
+ snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
}
- return env;
+
+ return 0;
}
+static HMODULE ipv6_dll = NULL;
+static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res);
+static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service,
+ const struct addrinfo *hints,
+ struct addrinfo **res);
+static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen,
+ char *host, DWORD hostlen,
+ char *serv, DWORD servlen, int flags);
/*
- * Copies global environ and adjusts variables as specified by vars.
+ * gai_strerror is an inline function in the ws2tcpip.h header, so we
+ * don't need to try to load that one dynamically.
*/
-char **make_augmented_environ(const char *const *vars)
-{
- char **env = copy_environ();
- while (*vars)
- env = env_setenv(env, *vars++);
- return env;
+static void socket_cleanup(void)
+{
+ WSACleanup();
+ if (ipv6_dll)
+ FreeLibrary(ipv6_dll);
+ ipv6_dll = NULL;
+ ipv6_freeaddrinfo = freeaddrinfo_stub;
+ ipv6_getaddrinfo = getaddrinfo_stub;
+ ipv6_getnameinfo = getnameinfo_stub;
}
-/* this is the first function to call into WS_32; initialize it */
-#undef gethostbyname
-struct hostent *mingw_gethostbyname(const char *host)
+static void ensure_socket_initialization(void)
{
WSADATA wsa;
+ static int initialized = 0;
+ const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL };
+ const char **name;
+
+ if (initialized)
+ return;
if (WSAStartup(MAKEWORD(2,2), &wsa))
die("unable to initialize winsock subsystem, error %d",
WSAGetLastError());
- atexit((void(*)(void)) WSACleanup);
+
+ for (name = libraries; *name; name++) {
+ ipv6_dll = LoadLibrary(*name);
+ if (!ipv6_dll)
+ continue;
+
+ ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *))
+ GetProcAddress(ipv6_dll, "freeaddrinfo");
+ ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *,
+ const struct addrinfo *,
+ struct addrinfo **))
+ GetProcAddress(ipv6_dll, "getaddrinfo");
+ ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *,
+ socklen_t, char *, DWORD,
+ char *, DWORD, int))
+ GetProcAddress(ipv6_dll, "getnameinfo");
+ if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
+ FreeLibrary(ipv6_dll);
+ ipv6_dll = NULL;
+ } else
+ break;
+ }
+ if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
+ ipv6_freeaddrinfo = freeaddrinfo_stub;
+ ipv6_getaddrinfo = getaddrinfo_stub;
+ ipv6_getnameinfo = getnameinfo_stub;
+ }
+
+ atexit(socket_cleanup);
+ initialized = 1;
+}
+
+#undef gethostname
+int mingw_gethostname(char *name, int namelen)
+{
+ ensure_socket_initialization();
+ return gethostname(name, namelen);
+}
+
+#undef gethostbyname
+struct hostent *mingw_gethostbyname(const char *host)
+{
+ ensure_socket_initialization();
return gethostbyname(host);
}
+void mingw_freeaddrinfo(struct addrinfo *res)
+{
+ ipv6_freeaddrinfo(res);
+}
+
+int mingw_getaddrinfo(const char *node, const char *service,
+ const struct addrinfo *hints, struct addrinfo **res)
+{
+ ensure_socket_initialization();
+ return ipv6_getaddrinfo(node, service, hints, res);
+}
+
+int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
+ char *host, DWORD hostlen, char *serv, DWORD servlen,
+ int flags)
+{
+ ensure_socket_initialization();
+ return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
+}
+
int mingw_socket(int domain, int type, int protocol)
{
int sockfd;
- SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0);
+ SOCKET s;
+
+ ensure_socket_initialization();
+ s = WSASocket(domain, type, protocol, NULL, 0, 0);
if (s == INVALID_SOCKET) {
/*
* WSAGetLastError() values are regular BSD error codes
@@ -949,39 +1513,87 @@ int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
return connect(s, sa, sz);
}
+#undef bind
+int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return bind(s, sa, sz);
+}
+
+#undef setsockopt
+int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return setsockopt(s, lvl, optname, (const char*)optval, optlen);
+}
+
+#undef shutdown
+int mingw_shutdown(int sockfd, int how)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return shutdown(s, how);
+}
+
+#undef listen
+int mingw_listen(int sockfd, int backlog)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return listen(s, backlog);
+}
+
+#undef accept
+int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz)
+{
+ int sockfd2;
+
+ SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1);
+ SOCKET s2 = accept(s1, sa, sz);
+
+ /* convert into a file descriptor */
+ if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) {
+ int err = errno;
+ closesocket(s2);
+ return error("unable to make a socket file descriptor: %s",
+ strerror(err));
+ }
+ return sockfd2;
+}
+
#undef rename
int mingw_rename(const char *pold, const char *pnew)
{
DWORD attrs, gle;
int tries = 0;
- static const int delay[] = { 0, 1, 10, 20, 40 };
+ 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;
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) {
@@ -996,10 +1608,27 @@ repeat:
tries++;
goto repeat;
}
+ if (gle == ERROR_ACCESS_DENIED &&
+ ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
+ "Should I try again?", pold, pnew))
+ goto repeat;
+
errno = EACCES;
return -1;
}
+/*
+ * Note that this doesn't return the actual pagesize, but
+ * the allocation granularity. If future Windows specific git code
+ * needs the real getpagesize function, we need to find another solution.
+ */
+int mingw_getpagesize(void)
+{
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+ return si.dwAllocationGranularity;
+}
+
struct passwd *getpwuid(int uid)
{
static char user_name[100];
@@ -1018,7 +1647,7 @@ static HANDLE timer_event;
static HANDLE timer_thread;
static int timer_interval;
static int one_shot;
-static sig_handler_t timer_fn = SIG_DFL;
+static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL;
/* The timer works like this:
* The thread, ticktack(), is a trivial routine that most of the time
@@ -1032,10 +1661,7 @@ static sig_handler_t timer_fn = SIG_DFL;
static unsigned __stdcall ticktack(void *dummy)
{
while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
- if (timer_fn == SIG_DFL)
- die("Alarm");
- if (timer_fn != SIG_IGN)
- timer_fn(SIGALRM);
+ mingw_raise(SIGALRM);
if (one_shot)
break;
}
@@ -1125,13 +1751,52 @@ int sigaction(int sig, struct sigaction *in, struct sigaction *out)
#undef signal
sig_handler_t mingw_signal(int sig, sig_handler_t handler)
{
- sig_handler_t old = timer_fn;
- if (sig != SIGALRM)
+ sig_handler_t old;
+
+ switch (sig) {
+ case SIGALRM:
+ old = timer_fn;
+ timer_fn = handler;
+ break;
+
+ case SIGINT:
+ old = sigint_fn;
+ sigint_fn = handler;
+ break;
+
+ default:
return signal(sig, handler);
- timer_fn = handler;
+ }
+
return old;
}
+#undef raise
+int mingw_raise(int sig)
+{
+ switch (sig) {
+ case SIGALRM:
+ if (timer_fn == SIG_DFL) {
+ if (isatty(STDERR_FILENO))
+ fputs("Alarm clock\n", stderr);
+ exit(128 + SIGALRM);
+ } else if (timer_fn != SIG_IGN)
+ timer_fn(SIGALRM);
+ return 0;
+
+ case SIGINT:
+ if (sigint_fn == SIG_DFL)
+ exit(128 + SIGINT);
+ else if (sigint_fn != SIG_IGN)
+ sigint_fn(SIGINT);
+ return 0;
+
+ default:
+ return raise(sig);
+ }
+}
+
+
static const char *make_backslash_path(const char *path)
{
static char buf[PATH_MAX + 1];
@@ -1150,17 +1815,40 @@ static const char *make_backslash_path(const char *path)
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");
- ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
+ 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);
+ typedef BOOL (WINAPI *T)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES);
static T create_hard_link = NULL;
+ 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) {
create_hard_link = (T) GetProcAddress(
- GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
+ GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
if (!create_hard_link)
create_hard_link = (T)-1;
}
@@ -1168,84 +1856,275 @@ int link(const char *oldpath, const char *newpath)
errno = ENOSYS;
return -1;
}
- if (!create_hard_link(newpath, oldpath, NULL)) {
+ if (!create_hard_link(wnewpath, woldpath, NULL)) {
errno = err_win_to_posix(GetLastError());
return -1;
}
return 0;
}
-char *getpass(const char *prompt)
+pid_t waitpid(pid_t pid, int *status, int options)
{
- struct strbuf buf = STRBUF_INIT;
+ HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
+ FALSE, pid);
+ if (!h) {
+ errno = ECHILD;
+ return -1;
+ }
- fputs(prompt, stderr);
- for (;;) {
- char c = _getch();
- if (c == '\r' || c == '\n')
- break;
- strbuf_addch(&buf, c);
+ if (pid > 0 && options & WNOHANG) {
+ if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
+ CloseHandle(h);
+ return 0;
+ }
+ options &= ~WNOHANG;
}
- fputs("\n", stderr);
- return strbuf_detach(&buf, NULL);
+
+ if (options == 0) {
+ struct pinfo_t **ppinfo;
+ if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
+ CloseHandle(h);
+ return 0;
+ }
+
+ if (status)
+ GetExitCodeProcess(h, (LPDWORD)status);
+
+ EnterCriticalSection(&pinfo_cs);
+
+ ppinfo = &pinfo;
+ while (*ppinfo) {
+ struct pinfo_t *info = *ppinfo;
+ if (info->pid == pid) {
+ CloseHandle(info->proc);
+ *ppinfo = info->next;
+ free(info);
+ break;
+ }
+ ppinfo = &info->next;
+ }
+
+ LeaveCriticalSection(&pinfo_cs);
+
+ CloseHandle(h);
+ return pid;
+ }
+ CloseHandle(h);
+
+ errno = EINVAL;
+ return -1;
}
-#ifndef NO_MINGW_REPLACE_READDIR
-/* MinGW readdir implementation to avoid extra lstats for Git */
-struct mingw_DIR
+int mingw_offset_1st_component(const char *path)
{
- struct _finddata_t dd_dta; /* disk transfer area for this dir */
- struct mingw_dirent dd_dir; /* Our own implementation, including d_type */
- long dd_handle; /* _findnext handle */
- int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
- char dd_name[1]; /* given path for dir with search pattern (struct is extended) */
-};
+ int offset = 0;
+ if (has_dos_drive_prefix(path))
+ offset = 2;
-struct dirent *mingw_readdir(DIR *dir)
-{
- WIN32_FIND_DATAA buf;
- HANDLE handle;
- struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
+ /* unc paths */
+ else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
- if (!dir->dd_handle) {
- errno = EBADF; /* No set_errno for mingw */
- return NULL;
+ /* 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;
}
- if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0)
- {
- DWORD lasterr;
- handle = FindFirstFileA(dir->dd_name, &buf);
- lasterr = GetLastError();
- dir->dd_handle = (long)handle;
- if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) {
- errno = err_win_to_posix(lasterr);
- return NULL;
+ 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];
}
- } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) {
- return NULL;
- } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) {
- DWORD lasterr = GetLastError();
- FindClose((HANDLE)dir->dd_handle);
- dir->dd_handle = (long)INVALID_HANDLE_VALUE;
- /* POSIX says you shouldn't set errno when readdir can't
- find any more files; so, if another error we leave it set. */
- if (lasterr != ERROR_NO_MORE_FILES)
- errno = err_win_to_posix(lasterr);
- return NULL;
}
+ wcs[wpos] = 0;
+ return wpos;
+}
- /* We get here if `buf' contains valid data. */
- strcpy(dir->dd_dir.d_name, buf.cFileName);
- ++dir->dd_stat;
+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;
+}
- /* Set file type, based on WIN32_FIND_DATA */
- mdir->dd_dir.d_type = 0;
- if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
- mdir->dd_dir.d_type |= DT_DIR;
- else
- mdir->dd_dir.d_type |= DT_REG;
+/*
+ * 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);
+}
+
+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);
+}
+
+void mingw_startup()
+{
+ int i, 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]));
+ for (i = 0; wenv[i]; i++)
+ maxlen = max(maxlen, wcslen(wenv[i]));
+
+ /*
+ * nedmalloc can't free CRT memory, allocate resizable environment
+ * list. Note that xmalloc / xmemdupz etc. call getenv, so we cannot
+ * use it while initializing the environment itself.
+ */
+ environ_size = i + 1;
+ environ_alloc = alloc_nr(environ_size * sizeof(char*));
+ environ = malloc_startup(environ_alloc);
+
+ /* 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 */
+ __argv[0] = wcstoutfdup_startup(buffer, _wpgmptr, maxlen);
+ for (i = 1; i < argc; i++)
+ __argv[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen);
+ for (i = 0; wenv[i]; i++)
+ environ[i] = wcstoutfdup_startup(buffer, wenv[i], maxlen);
+ environ[i] = NULL;
+ free(buffer);
+
+ /* sort environment for O(log n) getenv / putenv */
+ qsort(environ, i, sizeof(char*), compareenv);
+
+ /* fix Windows specific environment settings */
+
+ /* on Windows it is TMP and TEMP */
+ if (!mingw_getenv("TMPDIR")) {
+ const char *tmp = mingw_getenv("TMP");
+ if (!tmp)
+ tmp = mingw_getenv("TEMP");
+ if (tmp)
+ setenv("TMPDIR", tmp, 1);
+ }
+
+ /* simulate TERM to enable auto-color (see color.c) */
+ if (!getenv("TERM"))
+ setenv("TERM", "cygwin", 1);
+
+ /* 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);
- return (struct dirent*)&dir->dd_dir;
+ /* initialize Unicode console */
+ winansi_init();
}
-#endif // !NO_MINGW_REPLACE_READDIR
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 06:02:50 +0000