Allow upto 1024 arguments

Prior to this change, it was possible for a malicious client to send a
buffer of 1024 NUL bytes, which would cause the parser to overflow the
argv array and eventually crash the program.

This change makes the length of the argv array the same as the length of
the recv buffer, which means that even an input of all 0 bytes would not
cause any issues. The client would just get a bunch of ERR responses in
return.

daemon/x52d_command.c

@@ -298,7 +298,7 @@ static void cmd_config(char *buffer, int *buflen, int argc, char **argv)
 static void command_parser(char *buffer, int *buflen)
 {
     int argc = 0;
-    char *argv[512] = { 0 };
+    char *argv[1024] = { 0 };
     int i = 0;
 
     while (i < *buflen) {