mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-13 23:08:53 +00:00
79 lines
1.9 KiB
C
79 lines
1.9 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) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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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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static uid_t uid = -1;
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static gid_t gid = -1;
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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,
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void ATTRIBUTE_UNUSED *junk)
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{
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if (!chown_func(fileName,
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(uid == (uid_t)-1) ? statbuf->st_uid : uid,
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(gid == (gid_t)-1) ? statbuf->st_gid : gid)) {
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return TRUE;
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}
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bb_perror_msg("%s", fileName); /* A filename could have % in it... */
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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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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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/* Check for the username and groupname */
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if (groupName) {
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*groupName++ = '\0';
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gid = get_ug_id(groupName, bb_xgetgrnam);
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}
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if (--groupName != *argv) uid = get_ug_id(*argv, bb_xgetpwnam);
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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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