hush/coreutils/chmod.c

92 lines
1.9 KiB
C
Raw Normal View History

/* vi: set sw=4 ts=4: */
/*
* Mini chmod implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Reworked by (C) 2002 Vladimir Oleynik <dzo@simtreas.ru>
* to correctly parse '-rwxgoa'
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
2003-03-19 09:13:01 +00:00
/* BB_AUDIT SUSv3 compliant */
/* BB_AUDIT GNU defects - unsupported options -c, -f, -v, and long options. */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/chmod.html */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
2003-03-19 09:13:01 +00:00
#include <sys/stat.h>
#include "busybox.h"
static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
{
2003-03-19 09:13:01 +00:00
if (!bb_parse_mode((char *)junk, &(statbuf->st_mode)))
bb_error_msg_and_die( "invalid mode: %s", (char *)junk);
if (chmod(fileName, statbuf->st_mode) == 0)
return (TRUE);
2003-03-19 09:13:01 +00:00
bb_perror_msg("%s", fileName); /* Avoid multibyte problems. */
return (FALSE);
}
int chmod_main(int ATTRIBUTE_UNUSED argc, char **argv)
{
2003-03-19 09:13:01 +00:00
int retval = EXIT_SUCCESS;
int recursiveFlag = FALSE;
2003-03-19 09:13:01 +00:00
int count;
char *smode;
2003-03-19 09:13:01 +00:00
char **p;
char *p0;
char opt = '-';
2003-03-19 09:13:01 +00:00
++argv;
count = 0;
2003-03-19 09:13:01 +00:00
for (p = argv ; *p ; p++) {
p0 = p[0];
if (p0[0] == opt) {
if ((p0[1] == '-') && !p0[2]) {
opt = 0; /* Disable further option processing. */
continue;
}
if (p0[1] == 'R') {
char *s = p0 + 2;
while (*s == 'R') {
++s;
}
if (*s) {
bb_show_usage();
}
recursiveFlag = TRUE;
continue;
}
if (count) {
bb_show_usage();
}
}
2003-03-19 09:13:01 +00:00
argv[count] = p0;
++count;
}
2003-03-19 09:13:01 +00:00
argv[count] = NULL;
2003-03-19 09:13:01 +00:00
if (count < 2) {
bb_show_usage();
}
2003-03-19 09:13:01 +00:00
smode = *argv;
++argv;
/* Ok, ready to do the deed now */
2003-03-19 09:13:01 +00:00
do {
if (! recursive_action (*argv, recursiveFlag, TRUE, FALSE,
2003-03-19 09:13:01 +00:00
fileAction, fileAction, smode)) {
retval = EXIT_FAILURE;
}
2003-03-19 09:13:01 +00:00
} while (*++argv);
return retval;
}