sockaddr: ability to set raw address

src/common/sockaddr.c

@@ -81,6 +81,31 @@ int sockaddr_set(struct sockaddr_storage *ss, int family, const char *straddr, i
 	return KNOT_EINVAL;
 }
 
+int sockaddr_set_raw(struct sockaddr_storage *ss, int family, const uint8_t *raw_addr)
+{
+	if (ss == NULL || raw_addr == NULL) {
+		return KNOT_EINVAL;
+	}
+
+	/* Clear the structure and set family and port. */
+	memset(ss, 0, sizeof(struct sockaddr_storage));
+	ss->ss_family = family;
+
+	/* Initialize address depending on address family. */
+	socklen_t addr_len = sockaddr_len(ss);
+	if (family == AF_INET6) {
+		struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)ss;
+		memcpy(&ipv6->sin6_addr, raw_addr, addr_len);
+		return KNOT_EOK;
+	} else if (family == AF_INET) {
+		struct sockaddr_in *ipv4 = (struct sockaddr_in *)ss;
+		memcpy(&ipv4->sin_addr, raw_addr, addr_len);
+		return KNOT_EOK;
+	}
+
+	return KNOT_EINVAL;
+}
+
 int sockaddr_tostr(const struct sockaddr_storage *ss, char *buf, size_t maxlen)
 {
 	if (ss == NULL || buf == NULL) {

src/common/sockaddr.h

@@ -76,6 +76,19 @@ int sockaddr_cmp(const struct sockaddr_storage *k1, const struct sockaddr_storag
  */
 int sockaddr_set(struct sockaddr_storage *ss, int family, const char *straddr, int port);
 
+/*!
+ * \brief Set raw address.
+ *
+ * @note It is the caller's responsibility of have correct raw_addr length.
+ *
+ * \param ss Socket address storage.
+ * \param family Address family.
+ * \param addr IP address in binary format.
+ *
+ * return KNOT_EOK on success or an error code
+ */
+int sockaddr_set_raw(struct sockaddr_storage *ss, int family, const uint8_t *raw_addr);
+
 /*!
  * \brief Return string representation of socket address.
  *