mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 20:12:31 +01:00
4b316e6fd6
Added missing copyright Indentation and prototype fixes Fixed compiler warning include/my_sys.h: Fix prototype for my_print_open_files. Indentation fixes mysys/mf_keycache.c: Fix that key cache can be compiled without #define THREAD mysys/my_error.c: Indentation cleanups mysys/my_memmem.c: Added missing copyright. Fix include files sql/event.cc: unsigned char -> uchar sql/field.cc: unsigned char -> uchar sql/filesort.cc: Indentation fix sql/ha_ndbcluster.cc: unsigned char -> uchar sql/ha_ndbcluster_binlog.cc: unsigned char -> uchar sql/item_strfunc.cc: unsigned char -> uchar sql/log_event.cc: unsigned char -> uchar sql/opt_range.cc: Indentation fixes sql/sql_crypt.cc: unsigned char -> uchar sql/sql_string.cc: unsigned char -> uchar sql/tztime.cc: unsigned char -> uchar storage/heap/hp_extra.c: Clear also next_block (See heap_scan_init) storage/heap/hp_test2.c: Set required struct memeber max_table_size (Fixes that hp_test2 works again) storage/myisam/mi_rsamepos.c: Fixed bug in mi_rsame_with_pos strings/decimal.c: Fixed compiler warning
83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/* Copyright (C) 2000 MySQL AB
|
|
|
|
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; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
|
|
|
#include <my_global.h>
|
|
#include <m_string.h>
|
|
|
|
/*
|
|
my_memmem, port of a GNU extension.
|
|
|
|
Returns a pointer to the beginning of the substring, needle, or NULL if the
|
|
substring is not found in haystack.
|
|
*/
|
|
void *my_memmem(const void *haystack, size_t haystacklen,
|
|
const void *needle, size_t needlelen)
|
|
{
|
|
const unsigned char *cursor;
|
|
const unsigned char *last_possible_needle_location =
|
|
(unsigned char *)haystack + haystacklen - needlelen;
|
|
|
|
/* Easy answers */
|
|
if (needlelen > haystacklen) return(NULL);
|
|
if (needle == NULL) return(NULL);
|
|
if (haystack == NULL) return(NULL);
|
|
if (needlelen == 0) return(NULL);
|
|
if (haystacklen == 0) return(NULL);
|
|
|
|
for (cursor = haystack; cursor <= last_possible_needle_location; cursor++) {
|
|
if (memcmp(needle, cursor, needlelen) == 0) {
|
|
return((void *) cursor);
|
|
}
|
|
}
|
|
return(NULL);
|
|
}
|
|
|
|
|
|
|
|
#ifdef MAIN
|
|
#include <assert.h>
|
|
|
|
int main(int argc, char *argv[]) {
|
|
char haystack[10], needle[3];
|
|
|
|
memmove(haystack, "0123456789", 10);
|
|
|
|
memmove(needle, "no", 2);
|
|
assert(my_memmem(haystack, 10, needle, 2) == NULL);
|
|
|
|
memmove(needle, "345", 3);
|
|
assert(my_memmem(haystack, 10, needle, 3) != NULL);
|
|
|
|
memmove(needle, "789", 3);
|
|
assert(my_memmem(haystack, 10, needle, 3) != NULL);
|
|
assert(my_memmem(haystack, 9, needle, 3) == NULL);
|
|
|
|
memmove(needle, "012", 3);
|
|
assert(my_memmem(haystack, 10, needle, 3) != NULL);
|
|
assert(my_memmem(NULL, 10, needle, 3) == NULL);
|
|
|
|
assert(my_memmem(NULL, 10, needle, 3) == NULL);
|
|
assert(my_memmem(haystack, 0, needle, 3) == NULL);
|
|
assert(my_memmem(haystack, 10, NULL, 3) == NULL);
|
|
assert(my_memmem(haystack, 10, needle, 0) == NULL);
|
|
|
|
assert(my_memmem(haystack, 1, needle, 3) == NULL);
|
|
|
|
printf("success\n");
|
|
return(0);
|
|
}
|
|
|
|
#endif
|