1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2009 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* 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