added client code

1 files changed, 84 insertions, 0 deletions

diff --git a/clientbin.c b/clientbin.c
new file mode 100644
index 0000000..55bd6e2
--- /dev/null
+++ b/clientbin.c
@@ -0,0 +1,84 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <pthread.h>
+#include <limits.h>
+
+#define SERVER_IP "127.0.0.1"
+#define SERVER_PORT 6667
+#define BUFFER_SIZE 512
+
+int sock;
+pthread_t recv_thread;
+
+void *receive_handler(void *arg) {
+    char buffer[BUFFER_SIZE];
+    while (1) {
+        ssize_t bytes = recv(sock, buffer, sizeof(buffer) - 1, 0);
+        if (bytes <= 0) {
+            puts("Disconnected from server.");
+            close(sock);
+            exit(0);
+        }
+        buffer[bytes] = '\0';
+        printf("%s", buffer);
+        fflush(stdout);
+    }
+    return NULL;
+}
+
+void get_nickname(char *nickname, size_t size) {
+    char *user = getlogin();
+    if (!user) user = getenv("USER");
+
+    char hostname[HOST_NAME_MAX + 1];
+    if (gethostname(hostname, sizeof(hostname)) != 0) {
+        strncpy(hostname, "unknown", sizeof(hostname));
+    }
+
+    snprintf(nickname, size, "%s@%s", user ? user : "user", hostname);
+}
+
+int main() {
+    struct sockaddr_in server_addr;
+    char buffer[BUFFER_SIZE];
+    char nickname[100];
+
+    get_nickname(nickname, sizeof(nickname));
+
+    sock = socket(AF_INET, SOCK_STREAM, 0);
+    if (sock < 0) {
+        perror("socket");
+        return 1;
+    }
+
+    server_addr.sin_family = AF_INET;
+    server_addr.sin_port = htons(SERVER_PORT);
+    inet_pton(AF_INET, SERVER_IP, &server_addr.sin_addr);
+
+    if (connect(sock, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
+        perror("connect");
+        return 1;
+    }
+
+    // Send NICK and USER commands
+    char init[BUFFER_SIZE];
+    snprintf(init, sizeof(init), "NICK %s\r\nUSER %s 0 * :realname\r\n", nickname, nickname);
+    send(sock, init, strlen(init), 0);
+
+    puts("Connected to chat server.");
+    pthread_create(&recv_thread, NULL, receive_handler, NULL);
+
+    while (1) {
+        fgets(buffer, sizeof(buffer), stdin);
+        if (strcmp(buffer, "/quit\n") == 0) {
+            break;
+        }
+        send(sock, buffer, strlen(buffer), 0);
+    }
+
+    close(sock);
+    return 0;
+}