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/*
* slow simplistic reimplementation of strcasestr for systems that
* don't include it in their library
*
* based on a GPL implementation in OpenTTD found under GPL v2
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, version 2.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
/* Imported into notmuch by Dirk Hohndel - original author unknown. */
#include <string.h>
#include "compat.h"
char *strcasestr(const char *haystack, const char *needle)
{
size_t hay_len = strlen(haystack);
size_t needle_len = strlen(needle);
while (hay_len >= needle_len) {
if (strncasecmp(haystack, needle, needle_len) == 0)
return (char *) haystack;
haystack++;
hay_len--;
}
return NULL;
}
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