source: MondoRescue/branches/3.2/mindi-busybox/coreutils/chgrp.c

/* 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 source tree.
 */

/* BB_AUDIT SUSv3 defects - none? */
/* BB_AUDIT GNU defects - unsupported long options. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/chgrp.html */

//usage:#define chgrp_trivial_usage
//usage:       "[-RhLHP"IF_DESKTOP("cvf")"]... GROUP FILE..."
//usage:#define chgrp_full_usage "\n\n"
//usage:       "Change the group membership of each FILE to GROUP\n"
//usage:     "\n    -R  Recurse"
//usage:     "\n    -h  Affect symlinks instead of symlink targets"
//usage:     "\n    -L  Traverse all symlinks to directories"
//usage:     "\n    -H  Traverse symlinks on command line only"
//usage:     "\n    -P  Don't traverse symlinks (default)"
//usage:    IF_DESKTOP(
//usage:     "\n    -c  List changed files"
//usage:     "\n    -v  Verbose"
//usage:     "\n    -f  Hide errors"
//usage:    )
//usage:
//usage:#define chgrp_example_usage
//usage:       "$ ls -l /tmp/foo\n"
//usage:       "-r--r--r--    1 andersen andersen        0 Apr 12 18:25 /tmp/foo\n"
//usage:       "$ chgrp root /tmp/foo\n"
//usage:       "$ ls -l /tmp/foo\n"
//usage:       "-r--r--r--    1 andersen root            0 Apr 12 18:25 /tmp/foo\n"

#include "libbb.h"

/* This is a NOEXEC applet. Be very careful! */


int chgrp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int chgrp_main(int argc, char **argv)
{
    /* "chgrp [opts] abc file(s)" == "chown [opts] :abc file(s)" */
    char **p = argv;
    while (*++p) {
        if (p[0][0] != '-') {
            p[0] = xasprintf(":%s", p[0]);
            break;
        }
    }
    return chown_main(argc, argv);
}