View difference between Paste ID: HSbCDyCx and PN7Mct2D

 #include <sys/types.h>
 #include <sys/socket.h>
 #include <stdio.h>
 #include <netinet/in.h>
 #include <netinet/ip.h>
 #include <string.h>
 
 int main() {
   int s, ss, l;
   struct sockaddr_in server, server2, client;   //socketul pentru prima conecxiune, a 2-a si clinet
 
   s = socket(AF_INET, SOCK_STREAM, 0);
   if (s < 0) {
     printf("Eroare la crearea socketului server\n");
     return 1;
   }
 
   memset(&server, 0, sizeof(server));
   server.sin_port = htons(1234);
   server.sin_family = AF_INET;
   server.sin_addr.s_addr = INADDR_ANY;
 
   if (bind(s, (struct sockaddr *) &server, sizeof(server)) < 0) {
     printf("Eroare la bind\n");
     return 1;
   }     //bind pe prima conexiune
 
   ss = socket(AF_INET, SOCK_STREAM, 0);
   if(ss < 0){
       printf("Eroare la crearea noului socket server\n");
       return 1;
   }
 
   memset(&server2, 0, sizeof(server2));     //initializare socket server 2
   server2.sin_port = htons(2003);       //cu portul triis
   server2.sin_family = AF_INET;
   server2.sin_addr.s_addr = INADDR_ANY;
 
   if(bind(ss, (struct sockaddr *) &server2, sizeof(server2)) < 0){
       printf("Eroare la bind 2\n");
       return 1;     //bind pe al 2-lea socket
   }
 
   listen(s, 5); //listen pe scketul 1
   listen(ss, 5);//listen pe socketul 2
 
 
   l = sizeof(client);
 memset(&client, 0, sizeof(client));   //curatare client
 
   while (1) {
     int cc, c;
     c = accept(s, (struct sockaddr *) &client, &l);
     printf("S-a conectat un client.\n");
     // deservirea clientului
     short int port = 2003;
     port = htons(port);
     send(c, &port, sizeof(port), 0);
     short int k=9;
     k=htons(k);
     send(c,&k,sizeof(k),0);
 
     char a[9]="127.0.0.1";
 
     for(int i=0;i<9;i++)
         send(c,&a[i],sizeof(a[i]),MSG_WAITALL);
 
 
     //trimterea noului port
 
 
     memset(&client, 0, sizeof(client));
     l = sizeof(client);
     cc = accept(ss, (struct sockaddr*) &client, &l); //conectarea la clinet prin noul port
 
     printf("Te-ai conectat din nou :)!\n");
     int num_char;
     recv(cc, &num_char, sizeof(num_char), MSG_WAITALL);
     printf("Numarul de barosi este: %d\n", ntohl(num_char));
     num_char = ntohl(num_char);     //primi numarul de caractere de la client prin portul nou
 
     char* str = (char*)malloc(num_char*sizeof(char));
     for(int i = 0; i<num_char; i++){
         char a;
         recv(cc, &a, sizeof(a), MSG_WAITALL);   //citim sirul de caractere
         str[i] = a;
     }
 
     for(int i = 0; i<num_char; i++){
         str[i] = 'B';       //cream un not sir
 
     int to_send = htonl(num_char);  //trimitem inapoi lungimea
     send(cc, &to_send, sizeof(to_send), 0);
     for(int i = 0; i<num_char; i++){
         send(cc, &str[i], sizeof(str[i]), 0);   //trimitem inapoi sirul
     }
     close(c);
     close(cc);
     // sfarsitul deservirii clientului;
   }
 }