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/* vi: set sw=4 ts=4: */
/*
* Mini chown implementation for busybox
*
* Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
*
* 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 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* BB_AUDIT SUSv3 defects - unsupported options -h, -H, -L, and -P. */
/* BB_AUDIT GNU defects - unsupported options -h, -c, -f, -v, and long options. */
/* BB_AUDIT Note: gnu chown does not support -H, -L, or -P. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/chown.html */
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "busybox.h"
/* Don't use lchown for glibc older then 2.1.x */
#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
#define lchown chown
#endif
static long uid;
static long gid;
static int (*chown_func)(const char *, uid_t, gid_t) = chown;
static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
{
if (chown_func(fileName, uid, (gid == -1) ? statbuf->st_gid : gid) == 0) {
return (TRUE);
}
bb_perror_msg("%s", fileName); /* Avoid multibyte problems. */
return (FALSE);
}
#define FLAG_R 1
#define FLAG_h 2
static unsigned long get_ug_id(const char *s, long (*my_getxxnam)(const char *))
{
unsigned long r;
char *p;
r = strtoul(s, &p, 10);
if (*p || (s == p)) {
r = my_getxxnam(s);
}
return r;
}
int chown_main(int argc, char **argv)
{
int flags;
int retval = EXIT_SUCCESS;
char *groupName;
flags = bb_getopt_ulflags(argc, argv, "Rh");
if (flags & FLAG_h) chown_func = lchown;
if (argc - optind < 2) {
bb_show_usage();
}
argv += optind;
/* First, check if there is a group name here */
if ((groupName = strchr(*argv, '.')) == NULL) {
groupName = strchr(*argv, ':');
}
gid = -1;
if (groupName) {
*groupName++ = '\0';
gid = get_ug_id(groupName, my_getgrnam);
}
/* Now check for the username */
uid = get_ug_id(*argv, my_getpwnam);
++argv;
/* Ok, ready to do the deed now */
do {
if (! recursive_action (*argv, (flags & FLAG_R), FALSE, FALSE,
fileAction, fileAction, NULL)) {
retval = EXIT_FAILURE;
}
} while (*++argv);
return retval;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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