Define u16_casefold as a wrapper around u16_ct_casefold.

[gnulib.git] / lib / at-func.c

diff --git a/lib/at-func.c b/lib/at-func.c
index 2bdea7b..c7963fe 100644 (file)
--- a/lib/at-func.c
+++ b/lib/at-func.c
@@ -1,10 +1,10 @@
 /* Define an at-style functions like fstatat, unlinkat, fchownat, etc.
    Copyright (C) 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* written by Jim Meyering */
 
@@ -39,14 +38,25 @@ AT_FUNC_NAME (int fd, char const *file AT_FUNC_POST_FILE_PARAM_DECLS)
     return CALL_FUNC (file);
 
   {
-    char *proc_file;
-    BUILD_PROC_NAME (proc_file, fd, file);
-    err = CALL_FUNC (proc_file);
-    /* If the syscall succeeds, or if it fails with an unexpected
-       errno value, then return right away.  Otherwise, fall through
-       and resort to using save_cwd/restore_cwd.  */
-    if (0 <= err || ! EXPECTED_ERRNO (errno))
-      return err;
+    char buf[OPENAT_BUFFER_SIZE];
+    char *proc_file = openat_proc_name (buf, fd, file);
+    if (proc_file)
+      {
+       int proc_result = CALL_FUNC (proc_file);
+       int proc_errno = errno;
+       if (proc_file != buf)
+         free (proc_file);
+       /* If the syscall succeeds, or if it fails with an unexpected
+          errno value, then return right away.  Otherwise, fall through
+          and resort to using save_cwd/restore_cwd.  */
+       if (0 <= proc_result)
+         return proc_result;
+       if (! EXPECTED_ERRNO (proc_errno))
+         {
+           errno = proc_errno;
+           return proc_result;
+         }
+      }
   }
 
   if (save_cwd (&saved_cwd) != 0)