41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these librararies and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: strstr.c /main/3 1995/11/08 11:07:59 rswiston $ */
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char *strstr ( s1, s2 )
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char *s1, *s2 ; {
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int x, y ;
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y = strlen ( s2 ) ;
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x = strlen ( s1 ) - y ;
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if ( x < 0 ) return ( ( char * ) 0L ) ;
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do {
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if ( strncmp ( s1 + x, s2, y ) == 0 ) return ( s1 + x ) ;
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}
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while ( --x >= 0 ) ;
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return ( ( char * ) 0L ) ;
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}
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