Refactor and improve error handling in network address parsing

Signed-off-by: Shrikant Temburwar <shrikant.temburwar@intel.com>

lib/fdo.c

@@ -957,6 +957,8 @@ bool parse_manufacturer_address(char *buffer, size_t buffer_sz, bool *tls,
 		index++;
 	}
 
+	transport_prot[index] = '\0';
+
 	// parse separator "://"
 	if (buffer[index] != ':' || buffer[index + 1] != '/' ||
 	    buffer[index + 2] != '/') {
@@ -1099,8 +1101,7 @@ bool parse_manufacturer_address(char *buffer, size_t buffer_sz, bool *tls,
 		LOG(LOG_INFO, "%s is an ipv6 address\n", mfg_dns);
 		is_ipv6 = true;
 	} else {
-		LOG(LOG_DEBUG, "%s is an unknown address format %d\n", mfg_dns,
-		    ip_info);
+		LOG(LOG_INFO, "%s is a DNS name\n", mfg_dns);
 	}
 
 	*mfg_ip = fdo_ipaddress_alloc();
@@ -1314,7 +1315,7 @@ static bool _STATE_DI(void)
 	if (use_mfg_addr_bin) {
 		fsize =
 		    fdo_blob_size((char *)MANUFACTURER_ADDR, FDO_SDK_RAW_DATA);
-		if (fsize > 0) {
+		if (fsize < FDO_MAX_STR_SIZE && fsize > 0) {
 			buffer = fdo_alloc(fsize + 1);
 			if (buffer == NULL) {
 				LOG(LOG_ERROR, "malloc failed\n");
@@ -1340,7 +1341,7 @@ static bool _STATE_DI(void)
 			}
 		} else {
 			LOG(LOG_ERROR,
-			    "Manufacturer Network address file is empty.\n");
+			    "Invalid Manufacturer Network address.\n");
 			goto end;
 		}
 	} else {

lib/fdonet.c

@@ -429,7 +429,6 @@ bool resolve_dn(char *dn, fdo_ip_address_t **ip, uint16_t port, bool tls,
 			if (connect_ok == -1) {
 				LOG(LOG_ERROR, "Failed to connect to server: "
 					       "retrying...\n");
-				// curl_easy_cleanup(curl);
 			}
 			iter++;
 		}

network/network_if_linux.c

@@ -1166,7 +1166,9 @@ int check_ip_version(char *ip_addr)
 	struct addrinfo hint, *res = NULL;
 	int ret = -1;
 
-	memset(&hint, '\0', sizeof hint);
+	if (memset_s(&hint, sizeof hint, 0)) {
+		goto end;
+	}
 
 	hint.ai_family = PF_UNSPEC;
 	hint.ai_flags = AI_NUMERICHOST;