[Test] still not working sad

109062273_cli.cpp

@@ -22,15 +22,15 @@ using namespace std;
 int sockfd = 0;
 
 void clean_up(int signum) {
-    int truthy = 1;
     if (sockfd == -1) exit(1);
 
+    int truthy = 1;
+    setsockopt(sockfd, SOL_SOCKET, SO_REUSEPORT, &truthy, sizeof(int));
+    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &truthy, sizeof(int));
+
     shutdown(sockfd, SHUT_RDWR);
     close(sockfd);
 
-    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &truthy, sizeof(int));
-    setsockopt(sockfd, SOL_SOCKET, SO_REUSEPORT, &truthy, sizeof(int));
-
     exit(0);
 }
 
@@ -55,6 +55,8 @@ int main(int argc, char const *argv[]) {
     sockfd = socket(AF_INET, SOCK_STREAM, 0);
     if (sockfd == -1) {
         cerr << "Failed to create socket." << endl;
+        clean_up(0);
+        exit(errno);
     }
 
     // setup server info
@@ -66,8 +68,8 @@ int main(int argc, char const *argv[]) {
     // use static client port
     if (bind(sockfd, (struct sockaddr *) &client_info, sizeof(client_info)) == -1) {
         cerr << "socket bind error" << endl;
-        close(sockfd);
+        // close(sockfd);
-        return BINDERR_RET;
+        exit(errno);
     }
 
     // setup server info
@@ -78,7 +80,7 @@ int main(int argc, char const *argv[]) {
 
     if (connect(sockfd, (struct sockaddr *) &info, sizeof(info)) == -1) {
         cerr << "Connection failed." << endl;
-        close(sockfd);
+        // close(sockfd);
         exit(errno);
     }
 
@@ -101,7 +103,8 @@ int main(int argc, char const *argv[]) {
 
         if (send(sockfd, msg, sizeof(msg), 0) == -1) {
             cerr << "Send error" << endl;
-            break;
+            clean_up(0);
+            exit(errno);
         };
 
         // receive server response
@@ -140,5 +143,6 @@ int main(int argc, char const *argv[]) {
         cout << endl;
     }
 
+    close(sockfd);
     return 0;
 }

109062273_ser.cpp

@@ -14,8 +14,6 @@
 #define BUFFER_SIZE 256
 #define NOPORT_RET 10
 #define INVALID_PORT_RET 20
-#define BINDERR_RET 30
-#define LISTENERR_RET 35
 
 using namespace std;
 
@@ -99,6 +97,7 @@ int main(int argc, char const *argv[]) {
     sockfd = socket(AF_INET, SOCK_STREAM, 0);
     if (sockfd == -1) {
         cerr << "Failed to create socket" << endl;
+        exit(errno);
     }
 
     // setup server info
@@ -111,13 +110,14 @@ int main(int argc, char const *argv[]) {
     if (bind(sockfd, (struct sockaddr *) &server_info, sizeof(server_info)) == -1) {
         cerr << "Cannot bind socker." << endl;
         close(sockfd);
-        return BINDERR_RET;
+        exit(errno);
     }
 
     // only one connection at the same time
     if (listen(sockfd, 1) == -1) {
         cerr << "Cannot listen to socket." << endl;
-        return LISTENERR_RET;
+        close(sockfd);
+        exit(errno);
     }
     cout << "Server up. Waiting connection..." << endl;
 
@@ -152,7 +152,7 @@ int main(int argc, char const *argv[]) {
             if (recv(client_sockfd, buffer, sizeof(buffer), 0) <= 0) {
                 // closed connection
                 cout << "Disconnected." << endl;
-                cout << shutdown(client_sockfd, SHUT_RDWR) << endl;
+                shutdown(client_sockfd, SHUT_RDWR);
                 close(client_sockfd);
                 break;
             }