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authorPaul Eggert <eggert@cs.ucla.edu>2006-08-21 07:26:38 +0000
committerPaul Eggert <eggert@cs.ucla.edu>2006-08-21 07:26:38 +0000
commit0f7a044109b860443ecaa4f8a37652b1b4423057 (patch)
treeb5834ed9867213221a2636e0fa7e8da178749a76 /lib/chown.c
parent11fd62b0080ce376b26241bd789b7e7390befef6 (diff)
downloadcoreutils-0f7a044109b860443ecaa4f8a37652b1b4423057.tar.xz
Remove from CVS, since the bootstrap script generates them automatically.
Diffstat (limited to 'lib/chown.c')
-rw-r--r--lib/chown.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/lib/chown.c b/lib/chown.c
deleted file mode 100644
index 2a7bba1a6..000000000
--- a/lib/chown.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/* provide consistent interface to chown for systems that don't interpret
- an ID of -1 as meaning `don't change the corresponding ID'.
- Copyright (C) 1997, 2004, 2005 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 2, 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, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-/* written by Jim Meyering */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-/* Disable the definition of chown to rpl_chown (from config.h) in this
- file. Otherwise, we'd get conflicting prototypes for rpl_chown on
- most systems. */
-#undef chown
-
-#include <stdbool.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-
-#include "stat-macros.h"
-
-/* Provide a more-closely POSIX-conforming version of chown on
- systems with one or both of the following problems:
- - chown doesn't treat an ID of -1 as meaning
- `don't change the corresponding ID'.
- - chown doesn't dereference symlinks. */
-
-int
-rpl_chown (const char *file, uid_t uid, gid_t gid)
-{
-#if CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE
- if (gid == (gid_t) -1 || uid == (uid_t) -1)
- {
- struct stat file_stats;
-
- /* Stat file to get id(s) that should remain unchanged. */
- if (stat (file, &file_stats))
- return -1;
-
- if (gid == (gid_t) -1)
- gid = file_stats.st_gid;
-
- if (uid == (uid_t) -1)
- uid = file_stats.st_uid;
- }
-#endif
-
-#if CHOWN_MODIFIES_SYMLINK
- {
- /* Handle the case in which the system-supplied chown function
- does *not* follow symlinks. Instead, it changes permissions
- on the symlink itself. To work around that, we open the
- file (but this can fail due to lack of read or write permission) and
- use fchown on the resulting descriptor. */
- 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))))
- {
- 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);
-}