busybox/coreutils/chgrp.c

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/* 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.
*/
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/* 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"
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/* 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)
{
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if (lchown(fileName, statbuf->st_uid, *((long *) junk)) == 0) {
return (TRUE);
}
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bb_perror_msg("%s", fileName); /* Avoid multibyte problems. */
return (FALSE);
}
int chgrp_main(int argc, char **argv)
{
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long gid;
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int recursiveFlag;
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int retval = EXIT_SUCCESS;
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recursiveFlag = bb_getopt_ulflags(argc, argv, "R");
if (argc - optind < 2) {
bb_show_usage();
}
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argv += optind;
/* Find the selected group */
gid = get_ug_id(*argv, bb_xgetgrnam);
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++argv;
/* Ok, ready to do the deed now */
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do {
if (! recursive_action (*argv, recursiveFlag, FALSE, FALSE,
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fileAction, fileAction, &gid)) {
retval = EXIT_FAILURE;
}
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} while (*++argv);
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return retval;
}