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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