Imported Upstream version 1.5

[debian/gzip] / lib / lchown.c

diff --git a/lib/lchown.c b/lib/lchown.c
deleted file mode 100644 (file)
index 0d2ecb0..0000000
--- a/lib/lchown.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/* Provide a stub lchown function for systems that lack it.
-
-   Copyright (C) 1998-1999, 2002, 2004, 2006-2007, 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 Jim Meyering */
-
-#include <config.h>
-
-#include <unistd.h>
-
-#include <errno.h>
-#include <stdbool.h>
-#include <string.h>
-#include <sys/stat.h>
-
-#if !HAVE_LCHOWN
-
-/* If the system chown does not follow symlinks, we don't want it
-   replaced by gnulib's chown, which does follow symlinks.  */
-# if CHOWN_MODIFIES_SYMLINK
-#  undef chown
-# endif
-
-/* Work just like chown, except when FILE is a symbolic link.
-   In that case, set errno to EOPNOTSUPP and return -1.
-   But if autoconf tests determined that chown modifies
-   symlinks, then just call chown.  */
-
-int
-lchown (const char *file, uid_t uid, gid_t gid)
-{
-# if HAVE_CHOWN
-#  if ! CHOWN_MODIFIES_SYMLINK
-  struct stat stats;
-
-  if (lstat (file, &stats) == 0 && S_ISLNK (stats.st_mode))
-    {
-      errno = EOPNOTSUPP;
-      return -1;
-    }
-#  endif
-
-  return chown (file, uid, gid);
-
-# else /* !HAVE_CHOWN */
-  errno = ENOSYS;
-  return -1;
-# endif
-}
-
-#else /* HAVE_LCHOWN */
-
-# undef lchown
-
-/* Work around trailing slash bugs in lchown.  */
-int
-rpl_lchown (const char *file, uid_t uid, gid_t gid)
-{
-  struct stat st;
-  bool stat_valid = false;
-  int result;
-
-# if CHOWN_CHANGE_TIME_BUG
-  if (gid != (gid_t) -1 || uid != (uid_t) -1)
-    {
-      if (lstat (file, &st))
-        return -1;
-      stat_valid = true;
-      if (!S_ISLNK (st.st_mode))
-        return chown (file, uid, gid);
-    }
-# endif
-
-# if CHOWN_TRAILING_SLASH_BUG
-  if (!stat_valid)
-    {
-      size_t len = strlen (file);
-      if (len && file[len - 1] == '/')
-        return chown (file, uid, gid);
-    }
-# endif
-
-  result = lchown (file, uid, gid);
-
-# if CHOWN_CHANGE_TIME_BUG && HAVE_LCHMOD
-  if (result == 0 && stat_valid
-      && (uid == st.st_uid || uid == (uid_t) -1)
-      && (gid == st.st_gid || gid == (gid_t) -1))
-    {
-      /* No change in ownership, but at least one argument was not -1,
-         so we are required to update ctime.  Since lchown succeeded,
-         we assume that lchmod will do likewise.  But if the system
-         lacks lchmod and lutimes, we are out of luck.  Oh well.  */
-      result = lchmod (file, st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO
-                                           | S_ISUID | S_ISGID | S_ISVTX));
-    }
-# endif
-
-  return result;
-}
-
-#endif /* HAVE_LCHOWN */