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- #include <sys/types.h>
- #include <sys/socket.h>
- #include <stdio.h>
- #include <netinet/in.h>
- #include <netinet/ip.h>
- #include <string.h>
- #include <unistd.h>
- #include <arpa/inet.h>
- #include <stdlib.h>
- int main(int argc, char* argvs[]) {
- int s,l;
- struct sockaddr_in server, client1, client2;
- s = socket(AF_INET, SOCK_DGRAM, 0);
- //VERIFICARE --------
- int port = atoi(argvs[1]);
- if(port<1024 || port>65535){
- printf("Portul nu convine!\n");
- return 1;
- }
- //VERIFICARE --------
- if (s < 0) {
- printf("Eroare la crearea socketului server\n");
- return 1;
- }
- memset(&server, 0, sizeof(server));
- server.sin_port = htons(port);
- 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;
- }
- l = sizeof(server);
- char exit[] = "exit";
- while(1){
- char car1, car2, sir1[30], sir2[30]; int i = 0;
- i = 0;
- while(1){
- recvfrom(s, &car1, sizeof(car1), MSG_WAITALL, (struct sockaddr *) &client1, &l);
- sir1[i] = car1; i++;
- if(car1 == '\0') break;
- }
- printf("%s\n",sir1 );
- i = 0;
- while(1){
- recvfrom(s, &car2, sizeof(car2), MSG_WAITALL, (struct sockaddr *) &client2, &l);
- sir2[i] = car2; i++;
- if(car2 == '\0') break;
- }
- printf("%s\n",sir2 );
- i = 0;
- for(i = 0; i <= strlen(sir2); i++){
- car2 = sir2[i];
- sendto(s, &car2, sizeof(car2), 0, (struct sockaddr *) &client1, sizeof(client1));
- }
- i = 0;
- for(i = 0; i <= strlen(sir1); i++){
- car1 = sir1[i];
- sendto(s, &car1, sizeof(car1), 0, (struct sockaddr *) &client2, sizeof(client2));
- }
- if(strcmp(sir1,exit)==0 || strcmp(sir2,exit)==0) break;
- }
- close(s);
- }
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