apps: Add socket-test

apps/CMakeLists.txt

@@ -42,3 +42,4 @@ luna_app(cp.cpp cp)
 luna_app(kill.cpp kill)
 luna_app(gol.cpp gol)
 luna_app(buffer-test.cpp buffer-test)
+luna_app(socket-test.cpp socket-test)

apps/socket-test.cpp

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+int main()
+{
+    int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (sockfd < 0)
+    {
+        perror("socket");
+        return 0;
+    }
+
+    struct sockaddr_un un;
+    un.sun_family = AF_UNIX;
+    strncpy(un.sun_path, "/tmp/local.sock", sizeof(un.sun_path));
+
+    if (bind(sockfd, (struct sockaddr*)&un, sizeof(un)) < 0)
+    {
+        perror("bind");
+        return 1;
+    }
+}