libubox/avl-cmp.c
Felix Fietkau 72613ca2c8 avl: add blob comparator function
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2016-07-29 10:58:55 +02:00

37 lines
1.1 KiB
C

/*
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <string.h>
#include "avl-cmp.h"
#include "blob.h"
static inline int _min(int v1, int v2)
{
return v1 < v2 ? v1 : v2;
}
int
avl_strcmp(const void *k1, const void *k2, void *ptr)
{
return strcmp(k1, k2);
}
int
avl_blobcmp(const void *k1, const void *k2, void *ptr)
{
int len = _min(blob_raw_len(k1), blob_raw_len(k2));
return memcmp(k1, k2, len);
}