/* Specification. */
#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
#include <stdbool.h>
-#include <sys/types.h>
+#include <string.h>
#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
+
+#if !HAVE_CHOWN
+
+/* Simple stub that always fails with ENOSYS, for mingw. */
+int
+chown (const char *file _UNUSED_PARAMETER_, uid_t uid _UNUSED_PARAMETER_,
+ gid_t gid _UNUSED_PARAMETER_)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+#else /* HAVE_CHOWN */
/* Below we refer to the system's chown(). */
-#undef chown
+# undef chown
/* The results of open() in this file are not used with fchdir,
therefore save some unnecessary work in fchdir.c. */
-#undef open
-#undef close
+# undef open
+# undef close
/* Provide a more-closely POSIX-conforming version of chown on
systems with one or both of the following problems:
int
rpl_chown (const char *file, uid_t uid, gid_t gid)
{
-#if HAVE_CHOWN
# if CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE
if (gid == (gid_t) -1 || uid == (uid_t) -1)
{
/* Stat file to get id(s) that should remain unchanged. */
if (stat (file, &file_stats))
- return -1;
+ return -1;
if (gid == (gid_t) -1)
- gid = file_stats.st_gid;
+ gid = file_stats.st_gid;
if (uid == (uid_t) -1)
- uid = file_stats.st_uid;
+ uid = file_stats.st_uid;
}
# endif
int open_flags = O_NONBLOCK | O_NOCTTY;
int fd = open (file, O_RDONLY | open_flags);
if (0 <= fd
- || (errno == EACCES
- && 0 <= (fd = open (file, O_WRONLY | open_flags))))
+ || (errno == EACCES
+ && 0 <= (fd = open (file, O_WRONLY | open_flags))))
{
- int result = fchown (fd, uid, gid);
- int saved_errno = errno;
-
- /* POSIX says fchown can fail with errno == EINVAL on sockets,
- so fall back on chown in that case. */
- struct stat sb;
- bool fchown_socket_failure =
- (result != 0 && saved_errno == EINVAL
- && fstat (fd, &sb) == 0 && S_ISFIFO (sb.st_mode));
-
- close (fd);
-
- if (! fchown_socket_failure)
- {
- errno = saved_errno;
- return result;
- }
+ int result = fchown (fd, uid, gid);
+ int saved_errno = errno;
+
+ /* POSIX says fchown can fail with errno == EINVAL on sockets,
+ so fall back on chown in that case. */
+ struct stat sb;
+ bool fchown_socket_failure =
+ (result != 0 && saved_errno == EINVAL
+ && fstat (fd, &sb) == 0 && S_ISFIFO (sb.st_mode));
+
+ close (fd);
+
+ if (! fchown_socket_failure)
+ {
+ errno = saved_errno;
+ return result;
+ }
}
else if (errno != EACCES)
return -1;
}
# endif
- return chown (file, uid, gid);
+# if CHOWN_TRAILING_SLASH_BUG
+ {
+ size_t len = strlen (file);
+ struct stat st;
+ if (len && file[len - 1] == '/' && stat (file, &st))
+ return -1;
+ }
+# endif
-#else /* !HAVE_CHOWN */
- errno = ENOSYS;
- return -1;
-#endif
+ return chown (file, uid, gid);
}
+
+#endif /* HAVE_CHOWN */