From 59186f537157ba70b54fea0acb267093a308ff9f Mon Sep 17 00:00:00 2001
From: Flavien Haas <flavien@MacBook-Pro-de-Flavien.local>
Date: Wed, 30 Oct 2019 08:24:54 +0100
Subject: [PATCH] implement sendreceive()

---
 client_echo.c | 61 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 33 insertions(+), 28 deletions(-)

diff --git a/client_echo.c b/client_echo.c
index 8e72c65..1b9222d 100755
--- a/client_echo.c
+++ b/client_echo.c
@@ -8,7 +8,7 @@
 
 #define BUF_SIZE 500
 
-struct addrinfo *result;                 // tableau des adresses réseaux des serveurs
+struct addrinfo *result;                     // tableau des adresses réseaux des serveurs
 
 int cree_socket(char* ip, char* port, struct addrinfo hints){
   int s = getaddrinfo(ip, port, &hints, &result);
@@ -43,30 +43,47 @@ void con_serveur(int *sfd){
   }
 }
 
+void sendreceive(char* argtemp, size_t len, int j, int sfd){
+  char buf[BUF_SIZE];
+  ssize_t nread;
+  /* Send remaining command-line arguments as separate
+  datagrams, and read responses from server */
+  if (len + 1 > BUF_SIZE) {
+    fprintf(stderr, "Ignoring long message in argument %d\n", j);
+  }
+  if (write(sfd, argtemp, len) != len) {
+    fprintf(stderr, "partial/failed write\n");
+    exit(EXIT_FAILURE);
+  }
+  nread = read(sfd, buf, BUF_SIZE);
+  if (nread == -1) {
+    perror("read");
+    exit(EXIT_FAILURE);
+  }
+  printf("Received %ld bytes: %s\n", (long) nread, buf);
+}
+
 int main(int argc, char *argv[]) {
   struct addrinfo hints;
   int sfd, s, j;
   size_t len;
-  ssize_t nread;
-  char buf[BUF_SIZE];
+  char* argtemp;
 
-  if (argc < 3) {                     // vérification du nombre d'arguments rentrés
+  if (argc < 3) {                             // vérification du nombre d'arguments rentrés
     fprintf(stderr, "mettre: %s ip port message\n", argv[0]);
     exit(EXIT_FAILURE);
   }
 
   char* ip = argv[1];
   char* port = argv[2];
-  char* message = argv[3];            // remplissage des varables a partir des arguments passés au programme
+  char* message = argv[3];                    // remplissage des varables a partir des arguments passés au programme
 
   /* Obtain address(es) matching host/port */
   memset(&hints, 0, sizeof(struct addrinfo));
-  hints.ai_family = AF_UNSPEC;    /* Allow IPv4 or IPv6 */
-  hints.ai_socktype = SOCK_DGRAM; /* Datagram socket */
-  hints.ai_flags = 0;
-  hints.ai_protocol = 0;          /* Any protocol */
+  hints.ai_family = AF_UNSPEC;                // utilisation du serveur sur IPv4/v6 (AF_INET/AF_INET6)
+  hints.ai_socktype = SOCK_DGRAM;             // socket en mode datagramme
 
-  s = cree_socket(ip, port, hints);                 // création du socket
+  s = cree_socket(ip, port, hints);           // création du socket
   if(s == 1) {
     exit(EXIT_FAILURE);
   }
@@ -75,26 +92,14 @@ int main(int argc, char *argv[]) {
 
   freeaddrinfo(result);           /* No longer needed */
 
-  /* Send remaining command-line arguments as separate
-  datagrams, and read responses from server */
-
-  for (j = 3; j < argc; j++) {
+  for (j = 3; j < argc; j++) {               // récupère les mots passés en arguments
     len = strlen(argv[j]) + 1;
+    argtemp = argv[j];
     /* +1 for terminating null byte */
-    if (len + 1 > BUF_SIZE) {
-      fprintf(stderr, "Ignoring long message in argument %d\n", j);
-      continue;
-    }
-    if (write(sfd, argv[j], len) != len) {
-      fprintf(stderr, "partial/failed write\n");
-      exit(EXIT_FAILURE);
-    }
-    nread = read(sfd, buf, BUF_SIZE);
-    if (nread == -1) {
-      perror("read");
-      exit(EXIT_FAILURE);
-    }
-    printf("Received %ld bytes: %s\n", (long) nread, buf);
+    sendreceive(argv[j], len, j, sfd);
   }
+
+
+
   exit(EXIT_SUCCESS);
 }