hush/coreutils/chmod.c

97 lines
2.4 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini chmod implementation for busybox
*
* Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
* Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
*
* Reworked by (C) 2002 Vladimir Oleynik <dzo@simtreas.ru>
* to correctly parse '-rwxgoa'
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include "busybox.h"
static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
{
if (!parse_mode((char *)junk, &(statbuf->st_mode)))
error_msg_and_die( "unknown mode: %s", (char *)junk);
if (chmod(fileName, statbuf->st_mode) == 0)
return (TRUE);
perror(fileName);
return (FALSE);
}
int chmod_main(int argc, char **argv)
{
int opt;
int recursiveFlag = FALSE;
int modeind = 0; /* Index of the mode argument in `argv'. */
char *smode;
static const char chmod_modes[] = "Rrwxstugoa,+-=";
/* do normal option parsing */
while (1) {
int thisind = optind ? optind : 1;
opt = getopt(argc, argv, chmod_modes);
if (opt == EOF)
break;
smode = strchr(chmod_modes, opt);
if(smode == NULL)
show_usage();
if(smode == chmod_modes) { /* 'R' */
recursiveFlag = TRUE;
} else {
if (modeind != 0 && modeind != thisind)
show_usage();
modeind = thisind;
}
}
if (modeind == 0)
modeind = optind++;
opt = optind;
if (opt >= argc) {
error_msg_and_die(too_few_args);
}
smode = argv[modeind];
/* Ok, ready to do the deed now */
for (; opt < argc; opt++) {
if (! recursive_action (argv[opt], recursiveFlag, FALSE, FALSE, fileAction,
fileAction, smode)) {
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/