mirror of
https://git.notmuchmail.org/git/notmuch
synced 2024-12-23 09:54:52 +01:00
d09154465a
While all systems that I have access to support strcasestr, it is in fact not part of POSIX. So here's a fallback reimplementation based on POSIX functions. Signed-off-by: Dirk Hohndel <hohndel@infradead.org> Tested-by: Tomas Carnecky <tom@dbservice.com> (on OpenSolaris snv_134)
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
|
|
* 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;
|
|
}
|