mirror of https://code.videolan.org/videolan/vlc
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/*****************************************************************************
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* strcasestr.c: GNU strcasestr() replacement
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*****************************************************************************
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* Copyright © 2002-2011 VLC authors and VideoLAN
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <string.h>
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#include <ctype.h>
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#include <assert.h>
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char *strcasestr (const char *psz_big, const char *psz_little)
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{
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char *p_pos = (char *)psz_big;
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if( !*psz_little ) return p_pos;
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while( *p_pos )
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{
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if( toupper( (unsigned char)*p_pos ) == toupper( (unsigned char)*psz_little ) )
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{
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char *cur1 = p_pos + 1;
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char *cur2 = (char *)psz_little + 1;
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while( *cur1 && *cur2
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&& toupper( (unsigned char)*cur1 ) == toupper( (unsigned char)*cur2 ) )
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{
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cur1++;
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cur2++;
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}
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if( !*cur2 ) return p_pos;
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}
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p_pos++;
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}
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return NULL;
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}
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