1 #ifndef _NO_DIRNAME
2 
3 /* Copyright 2005 Shaun Jackman
4  * Permission to use, copy, modify, and distribute this software
5  * is freely granted, provided that this notice is preserved.
6  */
7 
8 #include <libgen.h>
9 #include <string.h>
10 
11 char *
dirname(char * path)12 dirname (char *path)
13 {
14 	char *p;
15 	if( path == NULL || *path == '\0' )
16 		return ".";
17 	p = path + strlen(path) - 1;
18 	while( *p == '/' ) {
19 		if( p == path )
20 			return path;
21 		*p-- = '\0';
22 	}
23 	while( p >= path && *p != '/' )
24 		p--;
25 	while( p > path && p[-1] == '/' )
26                 p--;
27 	return
28 		p < path ? "." :
29 		p == path ? "/" :
30 		(*p = '\0', path);
31 }
32 
33 #endif /* !_NO_DIRNAME  */
34