source: MondoRescue/branches/stable/mindi-busybox/coreutils/chgrp.c@ 821

/* vi: set sw=4 ts=4: */
/*
 * Mini chgrp 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 chgrp does not support -H, -L, or -P. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/chgrp.html */

#include <stdlib.h>
#include <unistd.h>
#include "busybox.h"

/* Don't use lchown glibc older then 2.1.x */
#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
#define lchown  chown
#endif

static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
{
    if (lchown(fileName, statbuf->st_uid, *((long *) junk)) == 0) {
        return (TRUE);
    }
    bb_perror_msg("%s", fileName);  /* Avoid multibyte problems. */
    return (FALSE);
}

int chgrp_main(int argc, char **argv)
{
    long gid;
    int recursiveFlag;
    int retval = EXIT_SUCCESS;

    recursiveFlag = bb_getopt_ulflags(argc, argv, "R");

    if (argc - optind < 2) {
        bb_show_usage();
    }

    argv += optind;

    /* Find the selected group */
    gid = get_ug_id(*argv, bb_xgetgrnam);
    ++argv;

    /* Ok, ready to do the deed now */
    do {
        if (! recursive_action (*argv, recursiveFlag, FALSE, FALSE,
                                fileAction, fileAction, &gid)) {
            retval = EXIT_FAILURE;
        }
    } while (*++argv);

    return retval;
}