basic remote gamepad test program

libretro-common/utils/udp-test.c

@@ -0,0 +1,57 @@
+/* public domain */
+/* gcc -o udptest udp-test.c */
+
+/* 
+   will send "RETROPAD RIGHT" indefinely to player 1 
+   to send to player 2 change port to 55401 and so on
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+
+#define SERVER "127.0.0.1"
+#define PORT 55400
+
+void die(char *s)
+{
+    perror(s);
+    exit(1);
+}
+
+int main(void)
+{
+    struct sockaddr_in si_other;
+    int s, i, slen=sizeof(si_other);
+
+    if ( (s=socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
+    {
+        die("socket");
+    }
+
+    memset((char *) &si_other, 0, sizeof(si_other));
+    si_other.sin_family = AF_INET;
+    si_other.sin_port = htons(PORT);
+
+    if (inet_aton(SERVER , &si_other.sin_addr) == 0)
+    {
+        fprintf(stderr, "inet_aton() failed\n");
+        exit(1);
+    }
+    while(1)
+    {
+
+        char message[10]="128";
+        //send the message
+        if (sendto(s, message, strlen(message) , 0 , (struct sockaddr *) &si_other, slen)==-1)
+        {
+            die("sendto()");
+        }
+
+    }
+
+    close(s);
+    return 0;
+}