fix

client/c/yadync.c

@@ -5,6 +5,7 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
+#include <netinet/in.h>
 
 #include "md5.h"
 
@@ -56,7 +57,7 @@ int main(int argc, char **argv) {
   inet_pton(AF_INET, serverIp, &servaddr.sin_addr);
   
   int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
-  sendto(sockfd, buf, strlen(buf), 0, (struct sockaddr*) &servaddr, sizeof(servaddr));
+  sendto(sockfd, buf, strlen(buf), 0, (struct sockaddr *) &servaddr, sizeof(servaddr));
   close(sockfd);
 
   return 0;