Function md5_string

lib_acl_cpp/samples/md5/md5_c.cpp:233–263

}

const char* md5_string(const char *s, const char *k, size_t klen,
	char* buf, size_t size)
{
	md5_ctx context;
	unsigned char digest[16];
	char output1[34], *ptr;
	unsigned int len = (unsigned int) strlen(s);
	size_t i, n;

	md5_init(&context);
	if (k != NULL && klen > 0)
		md5_update(&context, (const unsigned char *) k, (unsigned int) klen);
	md5_update(&context, (const unsigned char*) s, len);
	md5_final(digest, &context);

	for (i = 0; i < 16; i++) {
		sprintf(&(output1[2 * i]), "%02x", (unsigned char) digest[i]);
		sprintf(&(output1[2 * i + 1]), "%02x",
			(unsigned char) (digest[i] << 4));
	}

	ptr = buf;
	size--; /* left one byte for '\0' */
	n = size > 32 ? 32 : size;

	for(i = 0; i < n; i++)
		*ptr++ = output1[i];
	*ptr = '\0';

	return (buf);
}

const char* md5_key2string(const unsigned char *s, size_t s_len,
	char* buf, size_t size)