FreeNOS
dirname.cpp
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1 /*
2  * Copyright (C) 2015 Niek Linnenbank
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 <http://www.gnu.org/licenses/>.
16  */
17 
18 #include <string.h>
19 #include <limits.h>
20 #include "libgen.h"
21 
22 char * dirname(char *path)
23 {
24  static char buf[PATH_MAX];
25  char *str;
26 
27  if (path[0])
28  {
29  if ((str = strrchr(path, '/')))
30  {
31  strlcpy(buf, path, (str-path) + 1);
32  }
33  else
34  strlcpy(buf, path, PATH_MAX);
35  }
36  else
37  strlcpy(buf, ".", PATH_MAX);
38 
39  return buf;
40 }
strlcpy
size_t strlcpy(char *dst, const char *src, size_t siz)
Copy src to string dst of size siz.
Definition: strlcpy.cpp:19
string.h
libgen.h
strrchr
char * strrchr(const char *s, int c)
String scanning operation.
Definition: strrchr.cpp:20
PATH_MAX
#define PATH_MAX
Maximum file path length.
Definition: limits.h:37
limits.h
dirname
char * dirname(char *path)
Return the directory portion of a pathname.
Definition: dirname.cpp:22