#include "../git-compat-util.h"
#include "win32.h"
#include <conio.h>
+#include <wchar.h>
#include "../strbuf.h"
+#include "../run-command.h"
+#include "../cache.h"
+
+#define HCAST(type, handle) ((type)(intptr_t)handle)
+
+static const int delay[] = { 0, 1, 10, 20, 40 };
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;
+}
+
+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 */
+ mingw_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;
+}
+
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;
}
+ 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 = _wopen(wfilename, oflags & ~O_CREAT, mode);
+ if (fd >= 0 && set_hidden_flag(wfilename, 1))
+ warning("could not mark '%s' as hidden.", filename);
+ }
return fd;
}
+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)
+{
+ int hide = needs_hiding(filename);
+ 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;
+ 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;
+}
+
+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";
+ 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
+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;
+}
+
+#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 (time_t)(filetime_to_hnsec(ft) / 10000000);
}
+/**
+ * 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.
* 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;
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;
+ case ERROR_PATH_NOT_FOUND:
+ if (!has_valid_directory_prefix(wfilename)) {
+ errno = ENOTDIR;
+ break;
+ }
+ /* fallthru */
+ default:
+ errno = ENOENT;
+ break;
+ }
return -1;
}
* 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;
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);
{
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;
}
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 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;
-}
-
struct tm *gmtime_r(const time_t *timep, struct tm *result)
{
/* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
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;
-}
-
-#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;
+ wchar_t wpointer[MAX_PATH];
+ if (!_wgetcwd(wpointer, ARRAY_SIZE(wpointer)))
+ return NULL;
+ if (xwcstoutf(pointer, wpointer, len) < 0)
+ return NULL;
+ convert_slashes(pointer);
+ return pointer;
}
/*
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 p+1;
}
-/*
- * Splits the PATH into parts.
- */
-static char **get_path_split(void)
-{
- char *p, **path, *envpath = 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 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)
+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 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 */
+ ALLOC_ARRAY(tmpenv, size + i);
+ 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_fd(const char *cmd, const char **argv, char **env,
+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 */
* 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++;
+ ALLOC_ARRAY(wargs, st_add(st_mult(2, args.len), 1));
+ 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;
}
-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, 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, 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, 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;
}
-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);
+ 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;
}
-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;
- }
- }
- else {
+ /* optionally free removed / replaced entry */
+ if (i >= 0 && free_old)
free(env[i]);
- if (*eq)
- env[i] = xstrdup(name);
- else
- for (; env[i]; i++)
- env[i] = env[i+1];
+
+ 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*));
}
- return env;
+ return size;
}
-/*
- * Copies global environ and adjusts variables as specified by vars.
- */
-char **make_augmented_environ(const char *const *vars)
+char *mingw_getenv(const char *name)
{
- char **env = copy_environ();
+ char *value;
+ int pos = bsearchenv(environ, name, environ_size - 1);
+ if (pos < 0)
+ return NULL;
+ value = strchr(environ[pos], '=');
+ return value ? &value[1] : NULL;
+}
- while (*vars)
- env = env_setenv(env, *vars++);
- return env;
+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 it is null. It
+ * 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.
*/
const struct addrinfo *hints,
struct addrinfo **res)
{
- struct hostent *h = gethostbyname(node);
+ struct hostent *h = NULL;
struct addrinfo *ai;
struct sockaddr_in *sin;
- if (!h)
- return WSAGetLastError();
+ 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->ai_socktype;
- switch (hints->ai_socktype) {
+ ai->ai_socktype = hints ? hints->ai_socktype : 0;
+ switch (ai->ai_socktype) {
case SOCK_STREAM:
ai->ai_protocol = IPPROTO_TCP;
break;
break;
}
ai->ai_addrlen = sizeof(struct sockaddr_in);
- ai->ai_canonname = strdup(h->h_name);
+ if (hints && (hints->ai_flags & AI_CANONNAME))
+ ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
+ 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
+ * currently not implemented */
if (service)
sin->sin_port = htons(atoi(service));
- sin->sin_addr = *(struct in_addr *)h->h_addr;
+ 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 = 0;
+ ai->ai_next = NULL;
return 0;
}
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)
{
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
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;
+ 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) {
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;
}
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
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;
}
#undef signal
sig_handler_t mingw_signal(int sig, sig_handler_t handler)
{
- sig_handler_t old = timer_fn;
- if (sig != SIGALRM)
- return signal(sig, handler);
- timer_fn = handler;
- return old;
-}
+ sig_handler_t old;
-static const char *make_backslash_path(const char *path)
-{
- static char buf[PATH_MAX + 1];
- char *c;
+ switch (sig) {
+ case SIGALRM:
+ old = timer_fn;
+ timer_fn = handler;
+ break;
- if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
- die("Too long path: %.*s", 60, path);
+ case SIGINT:
+ old = sigint_fn;
+ sigint_fn = handler;
+ break;
- for (c = buf; *c; c++) {
- if (*c == '/')
- *c = '\\';
+ default:
+ return signal(sig, handler);
}
- return buf;
+
+ return old;
}
-void mingw_open_html(const char *unixpath)
+#undef raise
+int mingw_raise(int sig)
{
- 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;
-
- shell32 = LoadLibrary("shell32.dll");
- if (!shell32)
- die("cannot load shell32.dll");
- ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
- if (!ShellExecute)
- die("cannot run browser");
+ 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;
- printf("Launching default browser to display HTML ...\n");
- ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
+ case SIGINT:
+ if (sigint_fn == SIG_DFL)
+ exit(128 + SIGINT);
+ else if (sigint_fn != SIG_IGN)
+ sigint_fn(SIGINT);
+ return 0;
- FreeLibrary(shell32);
+ default:
+ return raise(sig);
+ }
}
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;
}
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')
+ if (pid > 0 && options & WNOHANG) {
+ if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
+ CloseHandle(h);
+ return 0;
+ }
+ options &= ~WNOHANG;
+ }
+
+ 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;
+}
+
+int mingw_skip_dos_drive_prefix(char **path)
+{
+ int ret = has_dos_drive_prefix(*path);
+ *path += ret;
+ return ret;
+}
+
+int mingw_offset_1st_component(const char *path)
+{
+ char *pos = (char *)path;
+
+ /* unc paths */
+ if (!skip_dos_drive_prefix(&pos) &&
+ is_dir_sep(pos[0]) && is_dir_sep(pos[1])) {
+ /* skip server name */
+ pos = strpbrk(pos + 2, "\\/");
+ if (!pos)
+ return 0; /* Error: malformed unc path */
+
+ do {
+ pos++;
+ } while (*pos && !is_dir_sep(*pos));
+ }
+
+ return pos + is_dir_sep(*pos) - path;
+}
+
+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;
- strbuf_addch(&buf, c);
+
+ 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];
+ }
}
- fputs("\n", stderr);
- return strbuf_detach(&buf, NULL);
+ wcs[wpos] = 0;
+ return wpos;
}
-#ifndef NO_MINGW_REPLACE_READDIR
-/* MinGW readdir implementation to avoid extra lstats for Git */
-struct mingw_DIR
+int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen)
{
- 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) */
-};
+ 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;
+}
-struct dirent *mingw_readdir(DIR *dir)
+static void setup_windows_environment(void)
{
- WIN32_FIND_DATAA buf;
- HANDLE handle;
- struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
+ 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 (!dir->dd_handle) {
- errno = EBADF; /* No set_errno for mingw */
- return NULL;
+ 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);
}
- 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;
+ /* 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 */
}
- } 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;
+ 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);
}
+}
- /* We get here if `buf' contains valid data. */
- strcpy(dir->dd_dir.d_name, buf.cFileName);
- ++dir->dd_stat;
+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);
+}
- /* 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;
+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();
- return (struct dirent*)&dir->dd_dir;
+ /* 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 */
+ setup_windows_environment();
+
+ /* 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;
}
-#endif // !NO_MINGW_REPLACE_READDIR