OpenCoverage

chmod.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/coreutils/src/src/chmod.c
Source codeSwitch to Preprocessed file
LineSourceCount
1/* chmod -- change permission modes of files-
2 Copyright (C) 1989-2018 Free Software Foundation, Inc.-
3-
4 This program is free software: you can redistribute it and/or modify-
5 it under the terms of the GNU General Public License as published by-
6 the Free Software Foundation, either version 3 of the License, or-
7 (at your option) any later version.-
8-
9 This program is distributed in the hope that it will be useful,-
10 but WITHOUT ANY WARRANTY; without even the implied warranty of-
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the-
12 GNU General Public License for more details.-
13-
14 You should have received a copy of the GNU General Public License-
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */-
16-
17/* Written by David MacKenzie <djm@gnu.ai.mit.edu> */-
18-
19#include <config.h>-
20#include <stdio.h>-
21#include <getopt.h>-
22#include <sys/types.h>-
23-
24#include "system.h"-
25#include "dev-ino.h"-
26#include "die.h"-
27#include "error.h"-
28#include "filemode.h"-
29#include "ignore-value.h"-
30#include "modechange.h"-
31#include "quote.h"-
32#include "root-dev-ino.h"-
33#include "xfts.h"-
34-
35/* The official name of this program (e.g., no 'g' prefix). */-
36#define PROGRAM_NAME "chmod"-
37-
38#define AUTHORS \-
39 proper_name ("David MacKenzie"), \-
40 proper_name ("Jim Meyering")-
41-
42enum Change_status-
43{-
44 CH_NOT_APPLIED,-
45 CH_SUCCEEDED,-
46 CH_FAILED,-
47 CH_NO_CHANGE_REQUESTED-
48};-
49-
50enum Verbosity-
51{-
52 /* Print a message for each file that is processed. */-
53 V_high,-
54-
55 /* Print a message for each file whose attributes we change. */-
56 V_changes_only,-
57-
58 /* Do not be verbose. This is the default. */-
59 V_off-
60};-
61-
62/* The desired change to the mode. */-
63static struct mode_change *change;-
64-
65/* The initial umask value, if it might be needed. */-
66static mode_t umask_value;-
67-
68/* If true, change the modes of directories recursively. */-
69static bool recurse;-
70-
71/* If true, force silence (suppress most of error messages). */-
72static bool force_silent;-
73-
74/* If true, diagnose surprises from naive misuses like "chmod -r file".-
75 POSIX allows diagnostics here, as portable code is supposed to use-
76 "chmod -- -r file". */-
77static bool diagnose_surprises;-
78-
79/* Level of verbosity. */-
80static enum Verbosity verbosity = V_off;-
81-
82/* Pointer to the device and inode numbers of '/', when --recursive.-
83 Otherwise NULL. */-
84static struct dev_ino *root_dev_ino;-
85-
86/* For long options that have no equivalent short option, use a-
87 non-character as a pseudo short option, starting with CHAR_MAX + 1. */-
88enum-
89{-
90 NO_PRESERVE_ROOT = CHAR_MAX + 1,-
91 PRESERVE_ROOT,-
92 REFERENCE_FILE_OPTION-
93};-
94-
95static struct option const long_options[] =-
96{-
97 {"changes", no_argument, NULL, 'c'},-
98 {"recursive", no_argument, NULL, 'R'},-
99 {"no-preserve-root", no_argument, NULL, NO_PRESERVE_ROOT},-
100 {"preserve-root", no_argument, NULL, PRESERVE_ROOT},-
101 {"quiet", no_argument, NULL, 'f'},-
102 {"reference", required_argument, NULL, REFERENCE_FILE_OPTION},-
103 {"silent", no_argument, NULL, 'f'},-
104 {"verbose", no_argument, NULL, 'v'},-
105 {GETOPT_HELP_OPTION_DECL},-
106 {GETOPT_VERSION_OPTION_DECL},-
107 {NULL, 0, NULL, 0}-
108};-
109-
110/* Return true if the chmodable permission bits of FILE changed.-
111 The old mode was OLD_MODE, but it was changed to NEW_MODE. */-
112-
113static bool-
114mode_changed (int dir_fd, char const *file, char const *file_full_name,-
115 mode_t old_mode, mode_t new_mode)-
116{-
117 if (new_mode & (S_ISUID | S_ISGID | S_ISVTX))
new_mode & ( 0...2000 | 01000 )Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
1-3
118 {-
119 /* The new mode contains unusual bits that the call to chmod may-
120 have silently cleared. Check whether they actually changed. */-
121-
122 struct stat new_stats;-
123-
124 if (fstatat (dir_fd, file, &new_stats, 0) != 0)
fstatat (dir_f...stats, 0) != 0Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
0-1
125 {-
126 if (! force_silent)
! force_silentDescription
TRUEnever evaluated
FALSEnever evaluated
0
127 error (0, errno, _("getting new attributes of %s"),
never executed: error (0, (*__errno_location ()) , dcgettext (((void *)0), "getting new attributes of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
0
128 quoteaf (file_full_name));
never executed: error (0, (*__errno_location ()) , dcgettext (((void *)0), "getting new attributes of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
0
129 return false;
never executed: return 0 ;
0
130 }-
131-
132 new_mode = new_stats.st_mode;-
133 }
executed 1 time by 1 test: end of block
Executed by:
  • chmod
1
134-
135 return ((old_mode ^ new_mode) & CHMOD_MODE_BITS) != 0;
executed 4 times by 1 test: return ((old_mode ^ new_mode) & ( 04000 | 02000 | 01000 | (0400|0200|0100) | ((0400|0200|0100) >> 3) | (((0400|0200|0100) >> 3) >> 3) )) != 0;
Executed by:
  • chmod
4
136}-
137-
138/* Tell the user how/if the MODE of FILE has been changed.-
139 CHANGED describes what (if anything) has happened. */-
140-
141static void-
142describe_change (const char *file, mode_t old_mode, mode_t mode,-
143 enum Change_status changed)-
144{-
145 char perms[12]; /* "-rwxrwxrwx" ls-style modes. */-
146 char old_perms[12];-
147 const char *fmt;-
148-
149 if (changed == CH_NOT_APPLIED)
changed == CH_NOT_APPLIEDDescription
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
0-1
150 {-
151 printf (_("neither symbolic link %s nor referent has been changed\n"),-
152 quoteaf (file));-
153 return;
never executed: return;
0
154 }-
155-
156 strmode (mode, perms);-
157 perms[10] = '\0'; /* Remove trailing space. */-
158-
159 strmode (old_mode, old_perms);-
160 old_perms[10] = '\0'; /* Remove trailing space. */-
161-
162 switch (changed)-
163 {-
164 case CH_SUCCEEDED:
executed 1 time by 1 test: case CH_SUCCEEDED:
Executed by:
  • chmod
1
165 fmt = _("mode of %s changed from %04lo (%s) to %04lo (%s)\n");-
166 break;
executed 1 time by 1 test: break;
Executed by:
  • chmod
1
167 case CH_FAILED:
never executed: case CH_FAILED:
0
168 fmt = _("failed to change mode of %s from %04lo (%s) to %04lo (%s)\n");-
169 break;
never executed: break;
0
170 case CH_NO_CHANGE_REQUESTED:
never executed: case CH_NO_CHANGE_REQUESTED:
0
171 fmt = _("mode of %s retained as %04lo (%s)\n");-
172 printf (fmt, quoteaf (file),-
173 (unsigned long int) (mode & CHMOD_MODE_BITS), &perms[1]);-
174 return;
never executed: return;
0
175 default:
never executed: default:
0
176 abort ();
never executed: abort ();
0
177 }-
178 printf (fmt, quoteaf (file),-
179 (unsigned long int) (old_mode & CHMOD_MODE_BITS), &old_perms[1],-
180 (unsigned long int) (mode & CHMOD_MODE_BITS), &perms[1]);-
181}
executed 1 time by 1 test: end of block
Executed by:
  • chmod
1
182-
183/* Change the mode of FILE.-
184 Return true if successful. This function is called-
185 once for every file system object that fts encounters. */-
186-
187static bool-
188process_file (FTS *fts, FTSENT *ent)-
189{-
190 char const *file_full_name = ent->fts_path;-
191 char const *file = ent->fts_accpath;-
192 const struct stat *file_stats = ent->fts_statp;-
193 mode_t old_mode IF_LINT ( = 0);-
194 mode_t new_mode IF_LINT ( = 0);-
195 bool ok = true;-
196 bool chmod_succeeded = false;-
197-
198 switch (ent->fts_info)-
199 {-
200 case FTS_DP:
executed 42988 times by 1 test: case 6:
Executed by:
  • chmod
42988
201 return true;
executed 42988 times by 1 test: return 1 ;
Executed by:
  • chmod
42988
202-
203 case FTS_NS:
executed 45 times by 1 test: case 10:
Executed by:
  • chmod
45
204 /* For a top-level file or directory, this FTS_NS (stat failed)-
205 indicator is determined at the time of the initial fts_open call.-
206 With programs like chmod, chown, and chgrp, that modify-
207 permissions, it is possible that the file in question is-
208 accessible when control reaches this point. So, if this is-
209 the first time we've seen the FTS_NS for this file, tell-
210 fts_read to stat it "again". */-
211 if (ent->fts_level == 0 && ent->fts_number == 0)
ent->fts_level == 0Description
TRUEevaluated 44 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
ent->fts_number == 0Description
TRUEevaluated 22 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 22 times by 1 test
Evaluated by:
  • chmod
1-44
212 {-
213 ent->fts_number = 1;-
214 fts_set (fts, ent, FTS_AGAIN);-
215 return true;
executed 22 times by 1 test: return 1 ;
Executed by:
  • chmod
22
216 }-
217 if (! force_silent)
! force_silentDescription
TRUEevaluated 22 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
1-22
218 error (0, ent->fts_errno, _("cannot access %s"),
executed 22 times by 1 test: error (0, ent->fts_errno, dcgettext (((void *)0), "cannot access %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
Executed by:
  • chmod
22
219 quoteaf (file_full_name));
executed 22 times by 1 test: error (0, ent->fts_errno, dcgettext (((void *)0), "cannot access %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
Executed by:
  • chmod
22
220 ok = false;-
221 break;
executed 23 times by 1 test: break;
Executed by:
  • chmod
23
222-
223 case FTS_ERR:
never executed: case 7:
0
224 if (! force_silent)
! force_silentDescription
TRUEnever evaluated
FALSEnever evaluated
0
225 error (0, ent->fts_errno, "%s", quotef (file_full_name));
never executed: error (0, ent->fts_errno, "%s", quotearg_n_style_colon (0, shell_escape_quoting_style, file_full_name));
0
226 ok = false;-
227 break;
never executed: break;
0
228-
229 case FTS_DNR:
never executed: case 4:
0
230 if (! force_silent)
! force_silentDescription
TRUEnever evaluated
FALSEnever evaluated
0
231 error (0, ent->fts_errno, _("cannot read directory %s"),
never executed: error (0, ent->fts_errno, dcgettext (((void *)0), "cannot read directory %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
0
232 quoteaf (file_full_name));
never executed: error (0, ent->fts_errno, dcgettext (((void *)0), "cannot read directory %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
0
233 ok = false;-
234 break;
never executed: break;
0
235-
236 case FTS_SLNONE:
executed 1 time by 1 test: case 13:
Executed by:
  • chmod
1
237 if (! force_silent)
! force_silentDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
0-1
238 error (0, 0, _("cannot operate on dangling symlink %s"),
executed 1 time by 1 test: error (0, 0, dcgettext (((void *)0), "cannot operate on dangling symlink %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
Executed by:
  • chmod
1
239 quoteaf (file_full_name));
executed 1 time by 1 test: error (0, 0, dcgettext (((void *)0), "cannot operate on dangling symlink %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
Executed by:
  • chmod
1
240 ok = false;-
241 break;
executed 1 time by 1 test: break;
Executed by:
  • chmod
1
242-
243 case FTS_DC: /* directory that causes cycles */
never executed: case 2:
0
244 if (cycle_warning_required (fts, ent))
cycle_warning_...red (fts, ent)Description
TRUEnever evaluated
FALSEnever evaluated
0
245 {-
246 emit_cycle_warning (file_full_name);-
247 return false;
never executed: return 0 ;
0
248 }-
249 break;
never executed: break;
0
250-
251 default:
executed 290969 times by 1 test: default:
Executed by:
  • chmod
290969
252 break;
executed 290969 times by 1 test: break;
Executed by:
  • chmod
290969
253 }-
254-
255 if (ok && ROOT_DEV_INO_CHECK (root_dev_ino, file_stats))
okDescription
TRUEevaluated 290969 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 24 times by 1 test
Evaluated by:
  • chmod
root_dev_inoDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 290968 times by 1 test
Evaluated by:
  • chmod
(*file_stats)....ev_ino).st_inoDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
(*file_stats)....ev_ino).st_devDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
0-290969
256 {-
257 ROOT_DEV_INO_WARN (file_full_name);
never executed: __result = (((const unsigned char *) (const char *) ( file_full_name ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "/" ))[3] - __s2[3]);
never executed: end of block
executed 1 time by 1 test: end of block
Executed by:
  • chmod
executed 1 time by 1 test: error (0, 0, dcgettext (((void *)0), "it is dangerous to operate recursively on %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
Executed by:
  • chmod
never executed: error (0, 0, dcgettext (((void *)0), "it is dangerous to operate recursively on %s (same as %s)" , 5) , quotearg_n_style (0, shell_escape_always_quoting_style, file_full_name), quotearg_n_style (1, shell_escape_always_quoting_style, "/"));
( __extension_...)))); }) == 0)Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
__result == 0Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-1
258 /* Tell fts not to traverse into this hierarchy. */-
259 fts_set (fts, ent, FTS_SKIP);-
260 /* Ensure that we do not process "/" on the second visit. */-
261 ignore_value (fts_read (fts));-
262 return false;
executed 1 time by 1 test: return 0 ;
Executed by:
  • chmod
1
263 }-
264-
265 if (ok)
okDescription
TRUEevaluated 290968 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 24 times by 1 test
Evaluated by:
  • chmod
24-290968
266 {-
267 old_mode = file_stats->st_mode;-
268 new_mode = mode_adjust (old_mode, S_ISDIR (old_mode) != 0, umask_value,-
269 change, NULL);-
270-
271 if (! S_ISLNK (old_mode))
! (((( old_mod... == (0120000))Description
TRUEevaluated 290404 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 564 times by 1 test
Evaluated by:
  • chmod
564-290404
272 {-
273 if (chmodat (fts->fts_cwd_fd, file, new_mode) == 0)
chmodat (fts->...new_mode) == 0Description
TRUEevaluated 290404 times by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
0-290404
274 chmod_succeeded = true;
executed 290404 times by 1 test: chmod_succeeded = 1 ;
Executed by:
  • chmod
290404
275 else-
276 {-
277 if (! force_silent)
! force_silentDescription
TRUEnever evaluated
FALSEnever evaluated
0
278 error (0, errno, _("changing permissions of %s"),
never executed: error (0, (*__errno_location ()) , dcgettext (((void *)0), "changing permissions of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
0
279 quoteaf (file_full_name));
never executed: error (0, (*__errno_location ()) , dcgettext (((void *)0), "changing permissions of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, file_full_name));
0
280 ok = false;-
281 }
never executed: end of block
0
282 }-
283 }
executed 290968 times by 1 test: end of block
Executed by:
  • chmod
290968
284-
285 if (verbosity != V_off)
verbosity != V_offDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 290988 times by 1 test
Evaluated by:
  • chmod
4-290988
286 {-
287 bool changed = (chmod_succeeded
chmod_succeededDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
0-4
288 && mode_changed (fts->fts_cwd_fd, file, file_full_name,
mode_changed (...ode, new_mode)Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
1-3
289 old_mode, new_mode));
mode_changed (...ode, new_mode)Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
1-3
290-
291 if (changed || verbosity == V_high)
changedDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
verbosity == V_highDescription
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
0-3
292 {-
293 enum Change_status ch_status =-
294 (!ok ? CH_FAILED
!okDescription
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
0-1
295 : !chmod_succeeded ? CH_NOT_APPLIED
!chmod_succeededDescription
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
0-1
296 : !changed ? CH_NO_CHANGE_REQUESTED
!changedDescription
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
0-1
297 : CH_SUCCEEDED);-
298 describe_change (file_full_name, old_mode, new_mode, ch_status);-
299 }
executed 1 time by 1 test: end of block
Executed by:
  • chmod
1
300 }
executed 4 times by 1 test: end of block
Executed by:
  • chmod
4
301-
302 if (chmod_succeeded && diagnose_surprises)
chmod_succeededDescription
TRUEevaluated 290404 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 588 times by 1 test
Evaluated by:
  • chmod
diagnose_surprisesDescription
TRUEevaluated 18 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 290386 times by 1 test
Evaluated by:
  • chmod
18-290404
303 {-
304 mode_t naively_expected_mode =-
305 mode_adjust (old_mode, S_ISDIR (old_mode) != 0, 0, change, NULL);-
306 if (new_mode & ~naively_expected_mode)
new_mode & ~na..._expected_modeDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 17 times by 1 test
Evaluated by:
  • chmod
1-17
307 {-
308 char new_perms[12];-
309 char naively_expected_perms[12];-
310 strmode (new_mode, new_perms);-
311 strmode (naively_expected_mode, naively_expected_perms);-
312 new_perms[10] = naively_expected_perms[10] = '\0';-
313 error (0, 0,-
314 _("%s: new permissions are %s, not %s"),-
315 quotef (file_full_name),-
316 new_perms + 1, naively_expected_perms + 1);-
317 ok = false;-
318 }
executed 1 time by 1 test: end of block
Executed by:
  • chmod
1
319 }
executed 18 times by 1 test: end of block
Executed by:
  • chmod
18
320-
321 if ( ! recurse)
! recurseDescription
TRUEevaluated 222 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 290770 times by 1 test
Evaluated by:
  • chmod
222-290770
322 fts_set (fts, ent, FTS_SKIP);
executed 222 times by 1 test: fts_set (fts, ent, 4);
Executed by:
  • chmod
222
323-
324 return ok;
executed 290992 times by 1 test: return ok;
Executed by:
  • chmod
290992
325}-
326-
327/* Recursively change the modes of the specified FILES (the last entry-
328 of which is NULL). BIT_FLAGS controls how fts works.-
329 Return true if successful. */-
330-
331static bool-
332process_files (char **files, int bit_flags)-
333{-
334 bool ok = true;-
335-
336 FTS *fts = xfts_open (files, bit_flags, NULL);-
337-
338 while (1)-
339 {-
340 FTSENT *ent;-
341-
342 ent = fts_read (fts);-
343 if (ent == NULL)
ent == ((void *)0)Description
TRUEevaluated 763 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 334003 times by 1 test
Evaluated by:
  • chmod
763-334003
344 {-
345 if (errno != 0)
(*__errno_location ()) != 0Description
TRUEnever evaluated
FALSEevaluated 763 times by 1 test
Evaluated by:
  • chmod
0-763
346 {-
347 /* FIXME: try to give a better message */-
348 if (! force_silent)
! force_silentDescription
TRUEnever evaluated
FALSEnever evaluated
0
349 error (0, errno, _("fts_read failed"));
never executed: error (0, (*__errno_location ()) , dcgettext (((void *)0), "fts_read failed" , 5) );
0
350 ok = false;-
351 }
never executed: end of block
0
352 break;
executed 763 times by 1 test: break;
Executed by:
  • chmod
763
353 }-
354-
355 ok &= process_file (fts, ent);-
356 }
executed 334003 times by 1 test: end of block
Executed by:
  • chmod
334003
357-
358 if (fts_close (fts) != 0)
fts_close (fts) != 0Description
TRUEnever evaluated
FALSEevaluated 763 times by 1 test
Evaluated by:
  • chmod
0-763
359 {-
360 error (0, errno, _("fts_close failed"));-
361 ok = false;-
362 }
never executed: end of block
0
363-
364 return ok;
executed 763 times by 1 test: return ok;
Executed by:
  • chmod
763
365}-
366-
367void-
368usage (int status)-
369{-
370 if (status != EXIT_SUCCESS)
status != 0Description
TRUEevaluated 18 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 15 times by 1 test
Evaluated by:
  • chmod
15-18
371 emit_try_help ();
executed 18 times by 1 test: end of block
Executed by:
  • chmod
18
372 else-
373 {-
374 printf (_("\-
375Usage: %s [OPTION]... MODE[,MODE]... FILE...\n\-
376 or: %s [OPTION]... OCTAL-MODE FILE...\n\-
377 or: %s [OPTION]... --reference=RFILE FILE...\n\-
378"),-
379 program_name, program_name, program_name);-
380 fputs (_("\-
381Change the mode of each FILE to MODE.\n\-
382With --reference, change the mode of each FILE to that of RFILE.\n\-
383\n\-
384"), stdout);-
385 fputs (_("\-
386 -c, --changes like verbose but report only when a change is made\n\-
387 -f, --silent, --quiet suppress most error messages\n\-
388 -v, --verbose output a diagnostic for every file processed\n\-
389"), stdout);-
390 fputs (_("\-
391 --no-preserve-root do not treat '/' specially (the default)\n\-
392 --preserve-root fail to operate recursively on '/'\n\-
393"), stdout);-
394 fputs (_("\-
395 --reference=RFILE use RFILE's mode instead of MODE values\n\-
396"), stdout);-
397 fputs (_("\-
398 -R, --recursive change files and directories recursively\n\-
399"), stdout);-
400 fputs (HELP_OPTION_DESCRIPTION, stdout);-
401 fputs (VERSION_OPTION_DESCRIPTION, stdout);-
402 fputs (_("\-
403\n\-
404Each MODE is of the form '[ugoa]*([-+=]([rwxXst]*|[ugo]))+|[-+=][0-7]+'.\n\-
405"), stdout);-
406 emit_ancillary_info (PROGRAM_NAME);-
407 }
executed 15 times by 1 test: end of block
Executed by:
  • chmod
15
408 exit (status);
executed 33 times by 1 test: exit (status);
Executed by:
  • chmod
33
409}-
410-
411/* Parse the ASCII mode given on the command line into a linked list-
412 of 'struct mode_change' and apply that to each file argument. */-
413-
414int-
415main (int argc, char **argv)-
416{-
417 char *mode = NULL;-
418 size_t mode_len = 0;-
419 size_t mode_alloc = 0;-
420 bool ok;-
421 bool preserve_root = false;-
422 char const *reference_file = NULL;-
423 int c;-
424-
425 initialize_main (&argc, &argv);-
426 set_program_name (argv[0]);-
427 setlocale (LC_ALL, "");-
428 bindtextdomain (PACKAGE, LOCALEDIR);-
429 textdomain (PACKAGE);-
430-
431 atexit (close_stdout);-
432-
433 recurse = force_silent = diagnose_surprises = false;-
434-
435 while ((c = getopt_long (argc, argv,
(c = getopt_lo... *)0) )) != -1Description
TRUEevaluated 654 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 778 times by 1 test
Evaluated by:
  • chmod
654-778
436 ("Rcfvr::w::x::X::s::t::u::g::o::a::,::+::=::"
(c = getopt_lo... *)0) )) != -1Description
TRUEevaluated 654 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 778 times by 1 test
Evaluated by:
  • chmod
654-778
437 "0::1::2::3::4::5::6::7::"),
(c = getopt_lo... *)0) )) != -1Description
TRUEevaluated 654 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 778 times by 1 test
Evaluated by:
  • chmod
654-778
438 long_options, NULL))
(c = getopt_lo... *)0) )) != -1Description
TRUEevaluated 654 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 778 times by 1 test
Evaluated by:
  • chmod
654-778
439 != -1)
(c = getopt_lo... *)0) )) != -1Description
TRUEevaluated 654 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 778 times by 1 test
Evaluated by:
  • chmod
654-778
440 {-
441 switch (c)-
442 {-
443 case 'r':
never executed: case 'r':
0
444 case 'w':
executed 30 times by 1 test: case 'w':
Executed by:
  • chmod
30
445 case 'x':
executed 1 time by 1 test: case 'x':
Executed by:
  • chmod
1
446 case 'X':
never executed: case 'X':
0
447 case 's':
never executed: case 's':
0
448 case 't':
never executed: case 't':
0
449 case 'u':
never executed: case 'u':
0
450 case 'g':
never executed: case 'g':
0
451 case 'o':
never executed: case 'o':
0
452 case 'a':
never executed: case 'a':
0
453 case ',':
never executed: case ',':
0
454 case '+':
never executed: case '+':
0
455 case '=':
never executed: case '=':
0
456 case '0': case '1': case '2': case '3':
never executed: case '0':
never executed: case '1':
executed 1 time by 1 test: case '2':
Executed by:
  • chmod
never executed: case '3':
0-1
457 case '4': case '5': case '6': case '7':
never executed: case '4':
executed 1 time by 1 test: case '5':
Executed by:
  • chmod
never executed: case '6':
executed 1 time by 1 test: case '7':
Executed by:
  • chmod
0-1
458 /* Support nonportable uses like "chmod -w", but diagnose-
459 surprises due to umask confusion. Even though "--", "--r",-
460 etc., are valid modes, there is no "case '-'" here since-
461 getopt_long reserves leading "--" for long options. */-
462 {-
463 /* Allocate a mode string (e.g., "-rwx") by concatenating-
464 the argument containing this option. If a previous mode-
465 string was given, concatenate the previous string, a-
466 comma, and the new string (e.g., "-s,-rwx"). */-
467-
468 char const *arg = argv[optind - 1];-
469 size_t arg_len = strlen (arg);-
470 size_t mode_comma_len = mode_len + !!mode_len;-
471 size_t new_mode_len = mode_comma_len + arg_len;-
472 if (mode_alloc <= new_mode_len)
mode_alloc <= new_mode_lenDescription
TRUEevaluated 32 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 2 times by 1 test
Evaluated by:
  • chmod
2-32
473 {-
474 mode_alloc = new_mode_len + 1;-
475 mode = X2REALLOC (mode, &mode_alloc);-
476 }
executed 32 times by 1 test: end of block
Executed by:
  • chmod
32
477 mode[mode_len] = ',';-
478 memcpy (mode + mode_comma_len, arg, arg_len + 1);-
479 mode_len = new_mode_len;-
480-
481 diagnose_surprises = true;-
482 }-
483 break;
executed 34 times by 1 test: break;
Executed by:
  • chmod
34
484 case NO_PRESERVE_ROOT:
executed 1 time by 1 test: case NO_PRESERVE_ROOT:
Executed by:
  • chmod
1
485 preserve_root = false;-
486 break;
executed 1 time by 1 test: break;
Executed by:
  • chmod
1
487 case PRESERVE_ROOT:
executed 2 times by 1 test: case PRESERVE_ROOT:
Executed by:
  • chmod
2
488 preserve_root = true;-
489 break;
executed 2 times by 1 test: break;
Executed by:
  • chmod
2
490 case REFERENCE_FILE_OPTION:
executed 1 time by 1 test: case REFERENCE_FILE_OPTION:
Executed by:
  • chmod
1
491 reference_file = optarg;-
492 break;
executed 1 time by 1 test: break;
Executed by:
  • chmod
1
493 case 'R':
executed 572 times by 1 test: case 'R':
Executed by:
  • chmod
572
494 recurse = true;-
495 break;
executed 572 times by 1 test: break;
Executed by:
  • chmod
572
496 case 'c':
executed 5 times by 1 test: case 'c':
Executed by:
  • chmod
5
497 verbosity = V_changes_only;-
498 break;
executed 5 times by 1 test: break;
Executed by:
  • chmod
5
499 case 'f':
executed 4 times by 1 test: case 'f':
Executed by:
  • chmod
4
500 force_silent = true;-
501 break;
executed 4 times by 1 test: break;
Executed by:
  • chmod
4
502 case 'v':
executed 2 times by 1 test: case 'v':
Executed by:
  • chmod
2
503 verbosity = V_high;-
504 break;
executed 2 times by 1 test: break;
Executed by:
  • chmod
2
505 case_GETOPT_HELP_CHAR;
never executed: break;
executed 15 times by 1 test: case GETOPT_HELP_CHAR:
Executed by:
  • chmod
0-15
506 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
executed 15 times by 1 test: exit ( 0 );
Executed by:
  • chmod
never executed: break;
executed 15 times by 1 test: case GETOPT_VERSION_CHAR:
Executed by:
  • chmod
0-15
507 default:
executed 3 times by 1 test: default:
Executed by:
  • chmod
3
508 usage (EXIT_FAILURE);-
509 }
never executed: end of block
0
510 }-
511-
512 if (reference_file)
reference_fileDescription
TRUEnever evaluated
FALSEevaluated 778 times by 1 test
Evaluated by:
  • chmod
0-778
513 {-
514 if (mode)
modeDescription
TRUEnever evaluated
FALSEnever evaluated
0
515 {-
516 error (0, 0, _("cannot combine mode and --reference options"));-
517 usage (EXIT_FAILURE);-
518 }
never executed: end of block
0
519 }
never executed: end of block
0
520 else-
521 {-
522 if (!mode)
!modeDescription
TRUEevaluated 753 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 25 times by 1 test
Evaluated by:
  • chmod
25-753
523 mode = argv[optind++];
executed 753 times by 1 test: mode = argv[optind++];
Executed by:
  • chmod
753
524 }
executed 778 times by 1 test: end of block
Executed by:
  • chmod
778
525-
526 if (optind >= argc)
optind >= argcDescription
TRUEevaluated 9 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 769 times by 1 test
Evaluated by:
  • chmod
9-769
527 {-
528 if (!mode || mode != argv[optind - 1])
!modeDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 8 times by 1 test
Evaluated by:
  • chmod
mode != argv[optind - 1]Description
TRUEevaluated 3 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 5 times by 1 test
Evaluated by:
  • chmod
1-8
529 error (0, 0, _("missing operand"));
executed 4 times by 1 test: error (0, 0, dcgettext (((void *)0), "missing operand" , 5) );
Executed by:
  • chmod
4
530 else-
531 error (0, 0, _("missing operand after %s"), quote (argv[argc - 1]));
executed 5 times by 1 test: error (0, 0, dcgettext (((void *)0), "missing operand after %s" , 5) , quote (argv[argc - 1]));
Executed by:
  • chmod
5
532 usage (EXIT_FAILURE);-
533 }
never executed: end of block
0
534-
535 if (reference_file)
reference_fileDescription
TRUEnever evaluated
FALSEevaluated 769 times by 1 test
Evaluated by:
  • chmod
0-769
536 {-
537 change = mode_create_from_ref (reference_file);-
538 if (!change)
!changeDescription
TRUEnever evaluated
FALSEnever evaluated
0
539 die (EXIT_FAILURE, errno, _("failed to get attributes of %s"),
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), dcgettext (((void *)0), \"failed to get attributes of %s\", 5), quotearg_style (shell_escape_always_quoting_style, reference_file)), assume (false))" ")... : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , dcgettext (((void *)0), "failed to get attributes of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, reference_file)), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
540 quoteaf (reference_file));
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), dcgettext (((void *)0), \"failed to get attributes of %s\", 5), quotearg_style (shell_escape_always_quoting_style, reference_file)), assume (false))" ")... : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , dcgettext (((void *)0), "failed to get attributes of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, reference_file)), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
541 }
never executed: end of block
0
542 else-
543 {-
544 change = mode_compile (mode);-
545 if (!change)
!changeDescription
TRUEevaluated 6 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 763 times by 1 test
Evaluated by:
  • chmod
6-763
546 {-
547 error (0, 0, _("invalid mode: %s"), quote (mode));-
548 usage (EXIT_FAILURE);-
549 }
never executed: end of block
0
550 umask_value = umask (0);-
551 }
executed 763 times by 1 test: end of block
Executed by:
  • chmod
763
552-
553 if (recurse && preserve_root)
recurseDescription
TRUEevaluated 570 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 193 times by 1 test
Evaluated by:
  • chmod
preserve_rootDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 569 times by 1 test
Evaluated by:
  • chmod
1-570
554 {-
555 static struct dev_ino dev_ino_buf;-
556 root_dev_ino = get_root_dev_ino (&dev_ino_buf);-
557 if (root_dev_ino == NULL)
root_dev_ino == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
0-1
558 die (EXIT_FAILURE, errno, _("failed to get attributes of %s"),
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), dcgettext (((void *)0), \"failed to get attributes of %s\", 5), quotearg_style (shell_escape_always_quoting_style, \"/\")), assume (false))" ")"); int _... ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , dcgettext (((void *)0), "failed to get attributes of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, "/")), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
559 quoteaf ("/"));
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), dcgettext (((void *)0), \"failed to get attributes of %s\", 5), quotearg_style (shell_escape_always_quoting_style, \"/\")), assume (false))" ")"); int _... ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , dcgettext (((void *)0), "failed to get attributes of %s" , 5) , quotearg_style (shell_escape_always_quoting_style, "/")), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
560 }
executed 1 time by 1 test: end of block
Executed by:
  • chmod
1
561 else-
562 {-
563 root_dev_ino = NULL;-
564 }
executed 762 times by 1 test: end of block
Executed by:
  • chmod
762
565-
566 ok = process_files (argv + optind,-
567 FTS_COMFOLLOW | FTS_PHYSICAL | FTS_DEFER_STAT);-
568-
569 return ok ? EXIT_SUCCESS : EXIT_FAILURE;
executed 763 times by 1 test: return ok ? 0 : 1 ;
Executed by:
  • chmod
763
570}-
Source codeSwitch to Preprocessed file
Generated by Squish Coco 4.1.2