Imported Upstream version 1.5

[debian/gzip] / lib / unlinkat.c

diff --git a/lib/unlinkat.c b/lib/unlinkat.c
deleted file mode 100644 (file)
index 008192e..0000000
--- a/lib/unlinkat.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/* Work around unlinkat bugs on Solaris 9.
-
-   Copyright (C) 2009-2010 Free Software Foundation, Inc.
-
-   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 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
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   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, see <http://www.gnu.org/licenses/>.  */
-
-/* Written by Eric Blake.  */
-
-#include <config.h>
-
-#include <unistd.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/stat.h>
-
-#include "openat.h"
-
-#if HAVE_UNLINKAT
-
-# undef unlinkat
-
-/* unlinkat without AT_REMOVEDIR does not honor trailing / on Solaris
-   9.  Solve it in a similar manner to unlink.  */
-
-int
-rpl_unlinkat (int fd, char const *name, int flag)
-{
-  size_t len;
-  int result = 0;
-  /* rmdir behavior has no problems with trailing slash.  */
-  if (flag & AT_REMOVEDIR)
-    return unlinkat (fd, name, flag);
-
-  len = strlen (name);
-  if (len && ISSLASH (name[len - 1]))
-    {
-      /* See the lengthy comment in unlink.c why we disobey the POSIX
-         rule of letting unlink("link-to-dir/") attempt to unlink a
-         directory.  */
-      struct stat st;
-      result = lstatat (fd, name, &st);
-      if (result == 0)
-        {
-          /* Trailing NUL will overwrite the trailing slash.  */
-          char *short_name = malloc (len);
-          if (!short_name)
-            {
-              errno = EPERM;
-              return -1;
-            }
-          memcpy (short_name, name, len);
-          while (len && ISSLASH (short_name[len - 1]))
-            short_name[--len] = '\0';
-          if (len && (lstatat (fd, short_name, &st) || S_ISLNK (st.st_mode)))
-            {
-              free (short_name);
-              errno = EPERM;
-              return -1;
-            }
-          free (short_name);
-        }
-    }
-  if (!result)
-    result = unlinkat (fd, name, flag);
-  return result;
-}
-
-#else /* !HAVE_UNLINKAT */
-
-/* Replacement for Solaris' function by the same name.
-   <http://www.google.com/search?q=unlinkat+site:docs.sun.com>
-   First, try to simulate it via (unlink|rmdir) ("/proc/self/fd/FD/FILE").
-   Failing that, simulate it via save_cwd/fchdir/(unlink|rmdir)/restore_cwd.
-   If either the save_cwd or the restore_cwd fails (relatively unlikely),
-   then give a diagnostic and exit nonzero.
-   Otherwise, this function works just like Solaris' unlinkat.  */
-
-# define AT_FUNC_NAME unlinkat
-# define AT_FUNC_F1 rmdir
-# define AT_FUNC_F2 unlink
-# define AT_FUNC_USE_F1_COND AT_REMOVEDIR
-# define AT_FUNC_POST_FILE_PARAM_DECLS , int flag
-# define AT_FUNC_POST_FILE_ARGS        /* empty */
-# include "at-func.c"
-# undef AT_FUNC_NAME
-# undef AT_FUNC_F1
-# undef AT_FUNC_F2
-# undef AT_FUNC_USE_F1_COND
-# undef AT_FUNC_POST_FILE_PARAM_DECLS
-# undef AT_FUNC_POST_FILE_ARGS
-
-#endif /* !HAVE_UNLINKAT */