For #1920, refine rtmp listen ip and port check (#2581)

trunk/src/app/srs_app_config.cpp

@@ -3617,9 +3617,17 @@ srs_error_t SrsConfig::check_normal_config()
             return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "listen requires params");
         }
         for (int i = 0; i < (int)listens.size(); i++) {
-            string port = listens[i];
-            if (port.empty() || ::atoi(port.c_str()) <= 0) {
-                return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "listen.port=%s is invalid", port.c_str());
+            int port; string ip;
+            srs_parse_endpoint(listens[i], ip, port);
+
+            // check ip
+            if (!srs_check_ip_addr_valid(ip)) {
+                return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "listen.ip=%s is invalid", ip.c_str());
+            }
+
+            // check port
+            if (port <= 0) {
+                return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "listen.port=%d is invalid", port);
             }
         }
     }

trunk/src/kernel/srs_kernel_utility.cpp

@@ -258,6 +258,24 @@ void srs_parse_endpoint(string hostport, string& ip, int& port)
     }
 }
 
+bool srs_check_ip_addr_valid(string ip)
+{
+    unsigned char buf[sizeof(struct in6_addr)];
+
+    // check ipv4
+    int ret = inet_pton(AF_INET, ip.data(), buf);
+    if (ret > 0) {
+        return true;
+    }
+        
+    ret = inet_pton(AF_INET6, ip.data(), buf);
+    if (ret > 0) {
+        return true;
+    }
+        
+    return false;
+}
+
 string srs_int2str(int64_t value)
 {
     // len(max int64_t) is 20, plus one "+-."

trunk/src/kernel/srs_kernel_utility.hpp

@@ -45,6 +45,9 @@ extern void srs_parse_hostport(std::string hostport, std::string& host, int& por
 // @remark The hostport format in <[ip:]port>, where ip is default to "0.0.0.0".
 extern void srs_parse_endpoint(std::string hostport, std::string& ip, int& port);
 
+// Check whether the ip is valid.
+extern bool srs_check_ip_addr_valid(std::string ip);
+
 // Parse the int64 value to string.
 extern std::string srs_int2str(int64_t value);
 // Parse the float value to string, precise is 2.

trunk/src/utest/srs_utest_kernel.cpp

@@ -5528,3 +5528,18 @@ VOID TEST(KernelUtilityTest, CoverStringAssign)
     ASSERT_STREQ("", sps.c_str());
 }
 
+VOID TEST(KernelUtilityTest, CoverCheckIPAddrValid)
+{
+    ASSERT_TRUE(srs_check_ip_addr_valid("172.16.254.1"));
+    ASSERT_TRUE(srs_check_ip_addr_valid("2001:0db8:85a3:0:0:8A2E:0370:7334"));
+    ASSERT_FALSE(srs_check_ip_addr_valid(""));
+
+    //IPv4 any addr
+    ASSERT_TRUE(srs_check_ip_addr_valid("0.0.0.0"));
+    //IPV6 any addr
+    ASSERT_TRUE(srs_check_ip_addr_valid("::"));
+
+    ASSERT_FALSE(srs_check_ip_addr_valid("256.256.256.256"));
+    ASSERT_FALSE(srs_check_ip_addr_valid("2001:0db8:85a3:0:0:8A2E:0370:7334:"));
+    ASSERT_FALSE(srs_check_ip_addr_valid("1e1.4.5.6"));
+}