2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these librararies and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: strstr.c /main/3 1995/11/08 11:07:59 rswiston $ */
24 char *strstr ( s1, s2 )
30 x = strlen ( s1 ) - y ;
32 if ( x < 0 ) return ( ( char * ) 0L ) ;
34 if ( strncmp ( s1 + x, s2, y ) == 0 ) return ( s1 + x ) ;
38 return ( ( char * ) 0L ) ;