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
32char*
33pathcat(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