/* Make a file's ancestor directories.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2009-2013 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 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
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
ptrdiff_t
mkancesdirs (char *file, struct savewd *wd,
- int (*make_dir) (char const *, char const *, void *),
- void *make_dir_arg)
+ int (*make_dir) (char const *, char const *, void *),
+ void *make_dir_arg)
{
/* Address of the previous directory separator that follows an
ordinary byte in a file name in the left-to-right scan, or NULL
while ((c = *p++))
if (ISSLASH (*p))
{
- if (! ISSLASH (c))
- sep = p;
+ if (! ISSLASH (c))
+ sep = p;
}
else if (ISSLASH (c) && *p && sep)
{
- /* Don't bother to make or test for "." since it does not
- affect the algorithm. */
- if (! (sep - component == 1 && component[0] == '.'))
- {
- int make_dir_errno = 0;
- int savewd_chdir_options = 0;
- int chdir_result;
-
- /* Temporarily modify FILE to isolate this file name
- component. */
- *sep = '\0';
-
- /* Invoke MAKE_DIR on this component, except don't bother
- with ".." since it must exist if its "parent" does. */
- if (sep - component == 2
- && component[0] == '.' && component[1] == '.')
- made_dir = false;
- else
- switch (make_dir (file, component, make_dir_arg))
- {
- case -1:
- make_dir_errno = errno;
- break;
-
- case 0:
- savewd_chdir_options |= SAVEWD_CHDIR_READABLE;
- /* Fall through. */
- case 1:
- made_dir = true;
- break;
- }
-
- if (made_dir)
- savewd_chdir_options |= SAVEWD_CHDIR_NOFOLLOW;
-
- chdir_result =
- savewd_chdir (wd, component, savewd_chdir_options, NULL);
-
- /* Undo the temporary modification to FILE, unless there
- was a failure. */
- if (chdir_result != -1)
- *sep = '/';
-
- if (chdir_result != 0)
- {
- if (make_dir_errno != 0 && errno == ENOENT)
- errno = make_dir_errno;
- return chdir_result;
- }
- }
-
- component = p;
+ /* Don't bother to make or test for "." since it does not
+ affect the algorithm. */
+ if (! (sep - component == 1 && component[0] == '.'))
+ {
+ int make_dir_errno = 0;
+ int savewd_chdir_options = 0;
+ int chdir_result;
+
+ /* Temporarily modify FILE to isolate this file name
+ component. */
+ *sep = '\0';
+
+ /* Invoke MAKE_DIR on this component, except don't bother
+ with ".." since it must exist if its "parent" does. */
+ if (sep - component == 2
+ && component[0] == '.' && component[1] == '.')
+ made_dir = false;
+ else
+ switch (make_dir (file, component, make_dir_arg))
+ {
+ case -1:
+ make_dir_errno = errno;
+ break;
+
+ case 0:
+ savewd_chdir_options |= SAVEWD_CHDIR_READABLE;
+ /* Fall through. */
+ case 1:
+ made_dir = true;
+ break;
+ }
+
+ if (made_dir)
+ savewd_chdir_options |= SAVEWD_CHDIR_NOFOLLOW;
+
+ chdir_result =
+ savewd_chdir (wd, component, savewd_chdir_options, NULL);
+
+ /* Undo the temporary modification to FILE, unless there
+ was a failure. */
+ if (chdir_result != -1)
+ *sep = '/';
+
+ if (chdir_result != 0)
+ {
+ if (make_dir_errno != 0 && errno == ENOENT)
+ errno = make_dir_errno;
+ return chdir_result;
+ }
+ }
+
+ component = p;
}
return component - file;