+2025-04-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ file-has-acl: port symlink code to Cygwin
+ Problem reported by Corinna Vinschen in:
+ https://lists.gnu.org/r/bug-gnulib/2025-03/msg00112.html
+ * lib/file-has-acl.c (acl_get_link_np): New static function,
+ defined only if needed; include <fcntl.h> if needed for this.
+ (HAVE_ACL_GET_LINK_NP): Define this if defining acl_get_link_np.
+
2025-04-07 Simon Josefsson <simon@josefsson.org>
maintainer-makefile: Avoid submodule-checks fail without submodules.
}
#endif
+#if (!USE_LINUX_XATTR && USE_ACL && HAVE_ACL_GET_FD \
+ && !HAVE_ACL_EXTENDED_FILE && !HAVE_ACL_TYPE_EXTENDED \
+ && !HAVE_ACL_GET_LINK_NP)
+# include <fcntl.h>
+# ifdef O_PATH
+
+/* Like acl_get_file, but do not follow symbolic links. */
+static acl_t
+acl_get_link_np (char const *name, acl_type_t type)
+{
+ int fd = open (name, O_PATH | O_NOFOLLOW);
+ if (fd < 0)
+ return NULL;
+ acl_t r = acl_get_fd (fd);
+ int err = errno;
+ close (fd);
+ errno = err;
+ return r;
+}
+# define HAVE_ACL_GET_LINK_NP 1
+# endif
+#endif
+
/* Return 1 if NAME has a nontrivial access control list,
0 if ACLs are not supported, or if NAME has no or only a base ACL,
and -1 (setting errno) on error. Note callers can determine
ret = -1;
# else /* FreeBSD, NetBSD >= 10, IRIX, Tru64, Cygwin >= 2.5 */
acl_t (*acl_get_file_or_link) (char const *, acl_type_t) = acl_get_file;
-# if HAVE_ACL_GET_LINK_NP /* FreeBSD, NetBSD >= 10 */
+# if HAVE_ACL_GET_LINK_NP /* FreeBSD, NetBSD >= 10, Cygwin >= 2.5 */
if (! (flags & ACL_SYMLINK_FOLLOW))
acl_get_file_or_link = acl_get_link_np;
# endif