1da2e3ebdSchin /*********************************************************************** 2da2e3ebdSchin * * 3da2e3ebdSchin * This software is part of the ast package * 4*b30d1939SAndy Fiddaman * Copyright (c) 1985-2011 AT&T Intellectual Property * 5da2e3ebdSchin * and is licensed under the * 6*b30d1939SAndy Fiddaman * Eclipse Public License, Version 1.0 * 77c2fbfb3SApril Chin * by AT&T Intellectual Property * 8da2e3ebdSchin * * 9da2e3ebdSchin * A copy of the License is available at * 10*b30d1939SAndy Fiddaman * http://www.eclipse.org/org/documents/epl-v10.html * 11*b30d1939SAndy Fiddaman * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12da2e3ebdSchin * * 13da2e3ebdSchin * Information and Software Systems Research * 14da2e3ebdSchin * AT&T Research * 15da2e3ebdSchin * Florham Park NJ * 16da2e3ebdSchin * * 17da2e3ebdSchin * Glenn Fowler <gsf@research.att.com> * 18da2e3ebdSchin * David Korn <dgk@research.att.com> * 19da2e3ebdSchin * Phong Vo <kpv@research.att.com> * 20da2e3ebdSchin * * 21da2e3ebdSchin ***********************************************************************/ 22da2e3ebdSchin #pragma prototyped 23da2e3ebdSchin 2434f9b3eeSRoland Mainz #include <ast.h> 2534f9b3eeSRoland Mainz 26da2e3ebdSchin /* 2734f9b3eeSRoland Mainz * path prefix strncmp(3) -- longest first! 28da2e3ebdSchin */ 29da2e3ebdSchin 30da2e3ebdSchin int strnpcmp(register const char * a,register const char * b,size_t n)3134f9b3eeSRoland Mainzstrnpcmp(register const char* a, register const char* b, size_t n) 32da2e3ebdSchin { 3334f9b3eeSRoland Mainz register const char* e; 34da2e3ebdSchin 3534f9b3eeSRoland Mainz e = a + n; 3634f9b3eeSRoland Mainz for (;;) 37da2e3ebdSchin { 3834f9b3eeSRoland Mainz if (a >= e) 3934f9b3eeSRoland Mainz return 0; 4034f9b3eeSRoland Mainz if (*a != *b) 4134f9b3eeSRoland Mainz break; 4234f9b3eeSRoland Mainz if (!*a++) 4334f9b3eeSRoland Mainz return 0; 4434f9b3eeSRoland Mainz b++; 45da2e3ebdSchin } 4634f9b3eeSRoland Mainz if (*a == 0 && *b == '/') 4734f9b3eeSRoland Mainz return 1; 4834f9b3eeSRoland Mainz if (*a == '/' && *b == 0) 4934f9b3eeSRoland Mainz return -1; 5034f9b3eeSRoland Mainz return (a < b) ? -1 : 1; 51da2e3ebdSchin } 52