libhashsum_init_blake_hasher.c


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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifdef SUPPORT_BLAKEB


int
libhashsum_init_blake_hasher(struct libhashsum_hasher *this, size_t hashbits, const void *salt, size_t saltbytes)
{
	if (salt) {
		if (hashbits == 224U || hashbits == 256U) {
			if (saltbytes != 16U)
				goto einval;
		} else if (hashbits == 384U || hashbits == 512U) {
			if (saltbytes != 32U)
				goto einval;
		}
	}

	if (hashbits == 224U)
		return libhashsum_init_blake224_hasher(this, salt);
	if (hashbits == 256U)
		return libhashsum_init_blake256_hasher(this, salt);
	if (hashbits == 384U)
		return libhashsum_init_blake384_hasher(this, salt);
	if (hashbits == 512U)
		return libhashsum_init_blake512_hasher(this, salt);

einval:
	errno = EINVAL;
	return -1;
}


#else
int
libhashsum_init_blake_hasher(struct libhashsum_hasher *this, size_t hashbits, const void *salt, size_t saltbytes)
{
	(void) this;
	(void) hashbits;
	(void) salt;
	(void) saltbytes;
	errno = ENOSYS;
	return -1;
}
#endif