1 /* dirname.c -- return all but the last element in a path
2 Copyright (C) 1990, 1998 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 2, or (at your option)
7 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, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
17
18 #if HAVE_CONFIG_H
19 # include <config.h>
20 #endif
21
22 /*******************************************************
23 * THIS IS A MODIFIED dirname IMPLEMENTATION:
24 * - sitecopy wants "" if there is no directory name,
25 * standard GNU implementation gives us "."
26 * - sitecopy wants the trailing slash.
27 *******************************************************/
28
29 #include "ne_alloc.h"
30
31 #if defined STDC_HEADERS || defined HAVE_STRING_H
32 # include <string.h>
33 #else
34 # include <strings.h>
35 # ifndef strrchr
36 # define strrchr rindex
37 # endif
38 #endif
39
40 #include "dirname.h"
41
42 /* Return the leading directories part of PATH,
43 allocated with malloc. If out of memory, return 0.
44 Assumes that trailing slashes have already been
45 removed. */
46
47 char *
dir_name(const char * path)48 dir_name (const char *path)
49 {
50 char *newpath;
51 char *slash;
52 int length; /* Length of result, not including NUL. */
53
54 slash = strrchr (path, '/');
55 if (slash == 0)
56 {
57 /* File is in the current directory. */
58 path = "";
59 length = 0;
60 }
61 else
62 {
63 /* Remove any trailing slashes from the result.
64 while (slash > path && *slash == '/')
65 --slash; */
66
67 length = slash - path + 1;
68 }
69 newpath = (char *) ne_malloc (length + 1);
70 if (newpath == 0)
71 return 0;
72 strncpy (newpath, path, length);
73 newpath[length] = 0;
74 return newpath;
75 }
76