added log.h and some update

src/client.c

@@ -1,11 +1,12 @@
 #include <arpa/inet.h>
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 #include <sys/socket.h>
+#include <sys/wait.h>
 #include <unistd.h>
+#include "log.h"
 
-#define PORT 5555
+#define PORT 7777
 #define BUFFER_SIZE 1024
 
 int main() {
@@ -29,8 +30,8 @@ int main() {
     return 1;
   }
 
-  if (fork() == 0) {
-    // Процесс чтения
+  pid_t child_pid = fork();
+  if (child_pid == 0) {
     while (1) {
       int valread = read(sock, buffer, BUFFER_SIZE);
       if (valread > 0) {
@@ -40,13 +41,19 @@ int main() {
     }
   } else {
     char username[50];
+    printf("Enter your username: ");
     fgets(username, 50, stdin);
-    username[strlen(username)-1] = '\0';
+    username[strlen(username) - 1] = '\0';
     send(sock, username, 50, 0);
-    printf("username = %s\n", username);
-    // Процесс отправки
+    log_info("username = %s\n", username);
     while (1) {
       fgets(buffer, BUFFER_SIZE, stdin);
+      if (strcmp(buffer, "/exit\n") == 0) {
+        log_info("Client is exiting\n");
+        kill(child_pid, SIGKILL);
+        close(sock);
+        break;
+      }
       send(sock, buffer, strlen(buffer), 0);
     }
   }