118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini chown implementation for busybox
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*
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* Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* BB_AUDIT SUSv3 defects - unsupported options -h, -H, -L, and -P. */
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/* BB_AUDIT GNU defects - unsupported options -h, -c, -f, -v, and long options. */
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/* BB_AUDIT Note: gnu chown does not support -H, -L, or -P. */
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/* http://www.opengroup.org/onlinepubs/007904975/utilities/chown.html */
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include "busybox.h"
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/* Don't use lchown for glibc older then 2.1.x */
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#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
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#define lchown chown
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#endif
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static long uid;
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static long gid;
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static int (*chown_func)(const char *, uid_t, gid_t) = chown;
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static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
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{
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if (chown_func(fileName, uid, (gid == -1) ? statbuf->st_gid : gid) == 0) {
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return (TRUE);
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}
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bb_perror_msg("%s", fileName); /* Avoid multibyte problems. */
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return (FALSE);
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}
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#define FLAG_R 1
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#define FLAG_h 2
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static unsigned long get_ug_id(const char *s, long (*my_getxxnam)(const char *))
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{
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unsigned long r;
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char *p;
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r = strtoul(s, &p, 10);
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if (*p || (s == p)) {
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r = my_getxxnam(s);
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}
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return r;
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}
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int chown_main(int argc, char **argv)
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{
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int flags;
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int retval = EXIT_SUCCESS;
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char *groupName;
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flags = bb_getopt_ulflags(argc, argv, "Rh");
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if (flags & FLAG_h) chown_func = lchown;
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if (argc - optind < 2) {
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bb_show_usage();
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}
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argv += optind;
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/* First, check if there is a group name here */
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if ((groupName = strchr(*argv, '.')) == NULL) {
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groupName = strchr(*argv, ':');
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}
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gid = -1;
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if (groupName) {
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*groupName++ = '\0';
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gid = get_ug_id(groupName, my_getgrnam);
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}
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/* Now check for the username */
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uid = get_ug_id(*argv, my_getpwnam);
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++argv;
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/* Ok, ready to do the deed now */
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do {
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if (! recursive_action (*argv, (flags & FLAG_R), FALSE, FALSE,
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fileAction, fileAction, NULL)) {
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retval = EXIT_FAILURE;
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}
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} while (*++argv);
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return retval;
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}
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/*
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Local Variables:
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c-file-style: "linux"
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c-basic-offset: 4
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tab-width: 4
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End:
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*/
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