mirror of
https://github.com/sheumann/hush.git
synced 2024-12-27 16:31:24 +00:00
104 lines
2.9 KiB
C
104 lines
2.9 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, -L, and -P. */
|
|
/* BB_AUDIT GNU defects - unsupported long options. */
|
|
/* http://www.opengroup.org/onlinepubs/007904975/utilities/chown.html */
|
|
|
|
#include "busybox.h"
|
|
|
|
static struct bb_uidgid_t ugid = { -1, -1 };
|
|
|
|
static int (*chown_func)(const char *, uid_t, gid_t) = chown;
|
|
|
|
#define OPT_RECURSE (option_mask32 & 1)
|
|
#define OPT_NODEREF (option_mask32 & 2)
|
|
#define OPT_VERBOSE (USE_DESKTOP(option_mask32 & 4) SKIP_DESKTOP(0))
|
|
#define OPT_CHANGED (USE_DESKTOP(option_mask32 & 8) SKIP_DESKTOP(0))
|
|
#define OPT_QUIET (USE_DESKTOP(option_mask32 & 0x10) SKIP_DESKTOP(0))
|
|
#define OPT_STR ("Rh" USE_DESKTOP("vcf"))
|
|
|
|
/* TODO:
|
|
* -H if a command line argument is a symbolic link to a directory, traverse it
|
|
* -L traverse every symbolic link to a directory encountered
|
|
* -P do not traverse any symbolic links (default)
|
|
*/
|
|
|
|
static int fileAction(const char *fileName, struct stat *statbuf,
|
|
void ATTRIBUTE_UNUSED *junk, int depth)
|
|
{
|
|
// TODO: -H/-L/-P
|
|
// if (depth ... && S_ISLNK(statbuf->st_mode)) ....
|
|
|
|
if (!chown_func(fileName,
|
|
(ugid.uid == (uid_t)-1) ? statbuf->st_uid : ugid.uid,
|
|
(ugid.gid == (gid_t)-1) ? statbuf->st_gid : ugid.gid)
|
|
) {
|
|
if (OPT_VERBOSE
|
|
|| (OPT_CHANGED && (statbuf->st_uid != ugid.uid || statbuf->st_gid != ugid.gid))
|
|
) {
|
|
printf("changed ownership of '%s' to %u:%u\n",
|
|
fileName, ugid.uid, ugid.gid);
|
|
}
|
|
return TRUE;
|
|
}
|
|
if (!OPT_QUIET)
|
|
bb_perror_msg("%s", fileName); /* A filename can have % in it... */
|
|
return FALSE;
|
|
}
|
|
|
|
int chown_main(int argc, char **argv)
|
|
{
|
|
char *groupName;
|
|
int retval = EXIT_SUCCESS;
|
|
|
|
opt_complementary = "-2";
|
|
getopt32(argc, argv, OPT_STR);
|
|
argv += optind;
|
|
|
|
if (OPT_NODEREF) chown_func = lchown;
|
|
|
|
/* First, check if there is a group name here */
|
|
groupName = strchr(*argv, '.'); /* deprecated? */
|
|
if (!groupName)
|
|
groupName = strchr(*argv, ':');
|
|
else
|
|
*groupName = ':'; /* replace '.' with ':' */
|
|
|
|
/* First, try parsing "user[:[group]]" */
|
|
if (!groupName) { /* "user" */
|
|
ugid.uid = get_ug_id(*argv, xuname2uid);
|
|
} else if (groupName == *argv) { /* ":group" */
|
|
ugid.gid = get_ug_id(groupName + 1, xgroup2gid);
|
|
} else {
|
|
if (!groupName[1]) /* "user:" */
|
|
*groupName = '\0';
|
|
if (!get_uidgid(&ugid, *argv, 1))
|
|
bb_error_msg_and_die("unknown user/group %s", *argv);
|
|
}
|
|
|
|
/* Ok, ready to do the deed now */
|
|
argv++;
|
|
do {
|
|
if (!recursive_action(*argv,
|
|
OPT_RECURSE, // recurse
|
|
FALSE, // follow links: TODO: -H/-L/-P
|
|
FALSE, // depth first
|
|
fileAction, // file action
|
|
fileAction, // dir action
|
|
NULL, // user data
|
|
0) // depth
|
|
) {
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
} while (*++argv);
|
|
|
|
return retval;
|
|
}
|