/*
* Compare two strings.
* Plain symbol-by-symbol comparison.
*/
int
top_level_str_coll(const struct bwstring *s1, const struct bwstring *s2)
{
if (default_sort_mods->rflag) {
const struct bwstring *tmp;
tmp = s1;
s1 = s2;
s2 = tmp;
}
return (bwscoll(s1, s2, 0));
}
/*
* Implements random sort (-R).
*/
static int
randomcoll(struct key_value *kv1, struct key_value *kv2, size_t offset)
{
struct bwstring *s1, *s2;
MD5_CTX ctx1, ctx2;
char *b1, *b2;
UNUSED_ARG(offset);
s1 = kv1->k;
s2 = kv2->k;
if (debug_sort) {
bwsprintf(stdout, s1, "; k1=<", ">");
bwsprintf(stdout, s2, ", k2=<", ">");
}
if (s1 == s2)
return (0);
memcpy(&ctx1,&md5_ctx,sizeof(MD5_CTX));
memcpy(&ctx2,&md5_ctx,sizeof(MD5_CTX));
MD5Update(&ctx1, bwsrawdata(s1), bwsrawlen(s1));
MD5Update(&ctx2, bwsrawdata(s2), bwsrawlen(s2));
b1 = MD5End(&ctx1, NULL);
b2 = MD5End(&ctx2, NULL);
if (b1 == NULL) {
if (b2 == NULL)
return (0);
else {
sort_free(b2);
return (-1);
}
} else if (b2 == NULL) {
sort_free(b1);
return (+1);
} else {
int cmp_res;
cmp_res = strcmp(b1,b2);
sort_free(b1);
sort_free(b2);
if (!cmp_res)
cmp_res = bwscoll(s1, s2, 0);
return (cmp_res);
}
}
/*
* Implements string sort.
*/
static int
wstrcoll(struct key_value *kv1, struct key_value *kv2, size_t offset)
{
if (debug_sort) {
if (offset)
printf("; offset=%d\n", (int) offset);
bwsprintf(stdout, kv1->k, "; k1=<", ">");
printf("(%zu)", BWSLEN(kv1->k));
bwsprintf(stdout, kv2->k, ", k2=<", ">");
printf("(%zu)", BWSLEN(kv2->k));
}
return (bwscoll(kv1->k, kv2->k, offset));
}
