Unix sockets demo

socket/client.c

@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#define SOCKET_PATH "/tmp/demosocket"
+
+int main() {
+    int sock_fd;
+    struct sockaddr_un addr;
+    char buffer[100];
+
+    sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (sock_fd < 0) {
+        perror("socket");
+        exit(EXIT_FAILURE);
+    }
+
+    memset(&addr, 0, sizeof(struct sockaddr_un));
+    addr.sun_family = AF_UNIX;
+    strncpy(addr.sun_path, SOCKET_PATH, sizeof(addr.sun_path) - 1);
+
+    if (connect(sock_fd, (struct sockaddr *)&addr, sizeof(struct sockaddr_un)) <
+        0) {
+        perror("connect");
+        exit(EXIT_FAILURE);
+    }
+
+    send(sock_fd, "ping\n", 4, 0);
+
+    int bytes = recv(sock_fd, buffer, sizeof(buffer) - 1, 0);
+    if (bytes > 0) {
+        buffer[bytes] = '\0';
+        printf("Client got: %s\n", buffer);
+    }
+
+    close(sock_fd);
+    return 0;
+}