1 files changed, 57 insertions, 0 deletions
diff --git a/ctrl/facemgr/examples/updowncli/updowncli.c b/ctrl/facemgr/examples/updowncli/updowncli.c
new file mode 100644
index 000000000..4f5a14165
--- /dev/null
+++ b/ctrl/facemgr/examples/updowncli/updowncli.c
@@ -0,0 +1,57 @@
+#include <assert.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+/**
+ * \brief Default unix socket path (the leading \0 means using the abstract
+ * namespace instead of the filesystem).
+ */
+#define UNIX_PATH "\0updownsrv"
+
+int main() {
+    struct sockaddr_un addr;
+    char buf[100];
+    int fd,rc;
+
+    char * socket_path = UNIX_PATH;
+
+    if ( (fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
+        perror("socket error");
+        exit(-1);
+    }
+
+    memset(&addr, 0, sizeof(addr));
+    addr.sun_family = AF_UNIX;
+    if (*socket_path == '\0') {
+        *addr.sun_path = '\0';
+        strncpy(addr.sun_path+1, socket_path+1, sizeof(addr.sun_path)-2);
+    } else {
+        strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path)-1);
+    }
+
+    if (connect(fd, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
+        perror("connect error");
+        exit(-1);
+    }
+
+    printf("Waiting for server data...\n");
+    while( (rc=read(fd, buf, sizeof(buf))) > 0) {
+        assert(rc == 1);
+        switch(buf[0]) {
+            case '\0':
+                printf("WiFi\n");
+                break;
+            case '\1':
+                printf("LTE\n");
+                break;
+            default:
+                printf("Unknown\n");
+                break;
+        }
+    }
+
+    return 0;
+}