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