f8ec1b51f3
They mean something different when the user they're switching to is different, so if you still want suid you reset it afterwards. This is a safety feature.
89 lines
1.9 KiB
C
89 lines
1.9 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini chown implementation for busybox
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
/* 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"
|
|
|
|
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 == -1) ? statbuf->st_uid : uid,
|
|
(gid == -1) ? statbuf->st_gid : gid)) {
|
|
return TRUE;
|
|
}
|
|
bb_perror_msg("%s", fileName); /* A filename could have % in it... */
|
|
return FALSE;
|
|
}
|
|
|
|
#define FLAG_R 1
|
|
#define FLAG_h 2
|
|
|
|
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, bb_xgetgrnam);
|
|
}
|
|
|
|
/* Now check for the username */
|
|
uid = get_ug_id(*argv, bb_xgetpwnam);
|
|
|
|
++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:
|
|
*/
|