Exo 1-3 fait

02-config-adresse/sender-udp.c

@@ -13,19 +13,46 @@
 
 int main (int argc, char *argv [])
 {
-    /* test arg number */
-
+    if(argc!=2)
+    {
+        perror("Invalid argument's number\n");
+        exit(EXIT_FAILURE);
+    }
+    const char* phrase="hello world";
     /* convert and check port number */
-
+    int port_number = atoi(argv[1]);
+    if(port_number < 10000 || port_number > 65000){
+        perror("Invalid port number\n");
+        exit(EXIT_FAILURE);
+    }
     /* create socket */
-
+    int new_socket=socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);
+    CHECK(new_socket);
+    
     /* complete sockaddr struct */
-
+    int error;
+    struct addrinfo *res;
+    error =getaddrinfo(IP,argv[1],NULL,&res);
+    if(error!=0){
+        perror("getaddrinfo\n");
+        exit(EXIT_FAILURE);
+    }
     /* send message to remote peer */
-
+    struct addrinfo *list_udp=res;
+    while (list_udp->ai_protocol != IPPROTO_UDP)
+    {
+
+        list_udp = list_udp->ai_next;
+        if (list_udp == NULL)
+        {
+            perror("Problème pas de protocole UDP");
+            exit(EXIT_FAILURE);
+        }
+    }
+    CHECK(sendto(new_socket,phrase,strlen(phrase),0,res->ai_addr,res->ai_addrlen));
     /* close socket */
-
-    /* free memory */
-
+    close(new_socket);
+    /* free memory */   
+    freeaddrinfo(res);
     return 0;
 }

03-recepteurUDPv4/receiver-udp.c

@@ -16,22 +16,51 @@
 int main (int argc, char *argv [])
 {
     /* test arg number */
-
+    if(argc!=2)
+    {
+        perror("Invalid argument's number\n");
+        exit(EXIT_FAILURE);
+    }
     /* convert and check port number */
-
+    int port_number = atoi(argv[1]);
+    if(port_number < 10000 || port_number > 65000){
+        perror("Invalid port number\n");
+        exit(EXIT_FAILURE);
+    }
     /* create socket */
-
+    int new_socket=socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);
+    CHECK(new_socket);
+    int error;
+    struct addrinfo *res;
+    error =getaddrinfo(IP,argv[1],NULL,&res);
+    if(error!=0){
+        perror("getaddrinfo\n");
+        exit(EXIT_FAILURE);
+    }
     /* complete struct sockaddr */
 
-    /* link socket to local IP and PORT */
+    struct addrinfo *list_udp=res;
+    while (list_udp->ai_protocol != IPPROTO_UDP)
+    {
 
+        list_udp = list_udp->ai_next;
+        if (list_udp == NULL)
+        {
+            perror("Problème pas de protocole UDP");
+            exit(EXIT_FAILURE);
+        }
+    }
+    /* link socket to local IP and PORT */
+    CHECK(bind(new_socket,res->ai_addr,res->ai_addrlen));
     /* wait for incoming message */
-
+    char buffer[SIZE];
+    CHECK(recvfrom(new_socket,buffer,SIZE,0,NULL,NULL));
     /* close socket */
-
+    close(new_socket);
     /* free memory */
-
+    freeaddrinfo(res);
     /* print received message */
-
+    fprintf(stdout,"%s",buffer);
     return 0;
 }
+

KOLESNIKOV @ 434a99b4

+Subproject commit 434a99b4595bdc3d2f5cbd1ebdf0dd85b80a8753