1 /***********************************************************************
2 * *
3 * This software is part of the ast package *
4 * Copyright (c) 1985-2010 AT&T Intellectual Property *
5 * and is licensed under the *
6 * Common Public License, Version 1.0 *
7 * by AT&T Intellectual Property *
8 * *
9 * A copy of the License is available at *
10 * http://www.opensource.org/licenses/cpl1.0.txt *
11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
12 * *
13 * Information and Software Systems Research *
14 * AT&T Research *
15 * Florham Park NJ *
16 * *
17 * Glenn Fowler <gsf@research.att.com> *
18 * David Korn <dgk@research.att.com> *
19 * Phong Vo <kpv@research.att.com> *
20 * *
21 ***********************************************************************/
22 #pragma prototyped
23 /*
24 * Glenn Fowler
25 * AT&T Bell Laboratories
26 *
27 * single dir support for pathaccess()
28 */
29
30 #include <ast.h>
31
32 char*
pathcat(char * path,register const char * dirs,int sep,const char * a,register const char * b)33 pathcat(char* path, register const char* dirs, int sep, const char* a, register const char* b)
34 {
35 register char* s;
36
37 s = path;
38 while (*dirs && *dirs != sep)
39 *s++ = *dirs++;
40 if (s != path)
41 *s++ = '/';
42 if (a)
43 {
44 while (*s = *a++)
45 s++;
46 if (b)
47 *s++ = '/';
48 }
49 else if (!b)
50 b = ".";
51 if (b)
52 while (*s++ = *b++);
53 return *dirs ? (char*)++dirs : 0;
54 }
55