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- /* dirname.c -- return all but the last element in a path
- Copyright (C) 1990 Free Software Foundation, Inc.
-
- 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.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include <sys/param.h>
- #include <stdlib.h>
- #include <strings.h>
-
- /* Return the leading directories part of PATH,
- allocated with malloc. If out of memory, return 0.
- Assumes that trailing slashes have already been
- removed.
- Changed so it returns a pointer to the value allocated in
- a static variable (newpath)
- */
-
- char *dirname (char *path)
- {
- static char newpath[MAXPATHLEN];
- char *slash;
- int length; /* Length of result, a la strlen. */
-
- slash = rindex (path, '/');
- if (slash == 0){
- newpath[0] = '.';
- newpath[1] = '\000';
- return newpath;
- }
-
- /* Remove any trailing slashes from result. */
- while (slash > path && *slash == '/')
- --slash;
-
- length = slash - path + 1;
- /* newpath = malloc (length + 1); */
- if (newpath == 0)
- return 0;
- strncpy (newpath, path, length);
- newpath[length] = 0;
- return newpath;
- }
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