| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini chmod implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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| 6 | *
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| 7 | * Reworked by (C) 2002 Vladimir Oleynik <dzo@simtreas.ru>
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| 8 | * to correctly parse '-rwxgoa'
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| 9 | *
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| 10 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 11 | */
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| 12 |
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| 13 | /* BB_AUDIT SUSv3 compliant */
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| 14 | /* BB_AUDIT GNU defects - unsupported options -c, -f, -v, and long options. */
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| 15 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/chmod.html */
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| 16 |
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| 17 | #include <stdio.h>
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| 18 | #include <stdlib.h>
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| 19 | #include <string.h>
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| 20 | #include <unistd.h>
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| 21 | #include <sys/stat.h>
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| 22 | #include "busybox.h"
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| 23 |
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| 24 | static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
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| 25 | {
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| 26 | if (!bb_parse_mode((char *)junk, &(statbuf->st_mode)))
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| 27 | bb_error_msg_and_die( "invalid mode: %s", (char *)junk);
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| 28 | if (chmod(fileName, statbuf->st_mode) == 0)
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| 29 | return (TRUE);
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| 30 | bb_perror_msg("%s", fileName); /* Avoid multibyte problems. */
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| 31 | return (FALSE);
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| 32 | }
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| 33 |
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| 34 | int chmod_main(int ATTRIBUTE_UNUSED argc, char **argv)
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| 35 | {
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| 36 | int retval = EXIT_SUCCESS;
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| 37 | int recursiveFlag = FALSE;
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| 38 | int count;
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| 39 | char *smode;
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| 40 | char **p;
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| 41 | char *p0;
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| 42 | char opt = '-';
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| 43 |
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| 44 | ++argv;
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| 45 | count = 0;
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| 46 |
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| 47 | for (p = argv ; *p ; p++) {
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| 48 | p0 = p[0];
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| 49 | if (p0[0] == opt) {
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| 50 | if ((p0[1] == '-') && !p0[2]) {
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| 51 | opt = 0; /* Disable further option processing. */
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| 52 | continue;
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| 53 | }
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| 54 | if (p0[1] == 'R') {
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| 55 | char *s = p0 + 2;
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| 56 | while (*s == 'R') {
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| 57 | ++s;
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| 58 | }
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| 59 | if (*s) {
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| 60 | bb_show_usage();
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| 61 | }
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| 62 | recursiveFlag = TRUE;
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| 63 | continue;
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| 64 | }
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| 65 | if (count) {
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| 66 | bb_show_usage();
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| 67 | }
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| 68 | }
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| 69 | argv[count] = p0;
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| 70 | ++count;
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| 71 | }
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| 72 |
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| 73 | argv[count] = NULL;
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| 74 |
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| 75 | if (count < 2) {
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| 76 | bb_show_usage();
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| 77 | }
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| 78 |
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| 79 | smode = *argv;
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| 80 | ++argv;
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| 81 |
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| 82 | /* Ok, ready to do the deed now */
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| 83 | do {
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| 84 | if (! recursive_action (*argv, recursiveFlag, TRUE, FALSE,
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| 85 | fileAction, fileAction, smode)) {
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| 86 | retval = EXIT_FAILURE;
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| 87 | }
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| 88 | } while (*++argv);
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| 89 |
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| 90 | return retval;
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| 91 | }
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