/* * CDE - Common Desktop Environment * * Copyright (c) 1993-2012, The Open Group. All rights reserved. * * These libraries and programs are free software; you can * redistribute them and/or modify them under the terms of the GNU * Lesser General Public License as published by the Free Software * Foundation; either version 2 of the License, or (at your option) * any later version. * * These libraries and programs are distributed in the hope that * they will be useful, but WITHOUT ANY WARRANTY; without even the * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. See the GNU Lesser General Public License for more * details. * * You should have received a copy of the GNU Lesser General Public * License along with these libraries and programs; if not, write * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth * Floor, Boston, MA 02110-1301 USA */ /* $XConsortium: strstr.c /main/3 1995/11/08 10:36:55 rswiston $ */ char *strstr ( s1, s2 ) char *s1, *s2 ; { int x, y ; y = strlen ( s2 ) ; x = strlen ( s1 ) - y ; if ( x < 0 ) return ( ( char * ) 0L ) ; do { if ( strncmp ( s1 + x, s2, y ) == 0 ) return ( s1 + x ) ; } while ( --x >= 0 ) ; return ( ( char * ) 0L ) ; }