check invalid argument

Signed-off-by: NLiuHao <liuhao27@huawei.com>

src/types/current.c

@@ -124,6 +124,9 @@ static int do_parse_ipnet(const char *cidr_str, const char *ip_str, uint8_t **ip
         ERROR("Parse cidr failed: %s", *err != NULL ? *err : "");
         return -1;
     }
+    if (ip_str == NULL) {
+        return 0;
+    }
     ret = parse_ip_from_str(ip_str, ip, ip_len, err);
     if (ret != 0) {
         ERROR("Parse ip failed: %s", *err != NULL ? *err : "");

src/types/types.c

@@ -645,6 +645,10 @@ static int do_parse_ipv6_from_str(const char *addr, struct in6_addr *ipv6, uint8
 {
     int nret = 0;
 
+    if (addr == NULL) {
+        ERROR("Empty address");
+        return -1;
+    }
     nret = inet_pton(AF_INET6, addr, ipv6);
     if (nret < 0) {
         nret = asprintf(err, "ipv6 inet_pton %s", strerror(errno));
@@ -674,6 +678,10 @@ int parse_ip_from_str(const char *addr, uint8_t **ips, size_t *len, char **err)
     struct in6_addr ipv6;
     int ret = -1;
 
+    if (addr == NULL) {
+        ERROR("Empty address");
+        return -1;
+    }
     nret = inet_pton(AF_INET, addr, &ipv4);
     if (nret < 0) {
         nret = asprintf(err, "ipv4 inet_pton %s", strerror(errno));