b_sock.c: make getsockopt work in cases when optlen is 64-bit value.

crypto/bio/b_sock.c

@@ -233,13 +233,14 @@ int BIO_get_port(const char *str, unsigned short *port_ptr)
 int BIO_sock_error(int sock)
 	{
 	int j,i;
-	int size;
+	union { size_t s; int i; } size;
 		 
 #if defined(OPENSSL_SYS_BEOS_R5)
 	return 0;
 #endif
-		 
-	size=sizeof(int);
+ 
+	/* heuristic way to adapt for platforms that expect 64-bit optlen */
+	size.s=0, size.i=sizeof(j);
 	/* Note: under Windows the third parameter is of type (char *)
 	 * whereas under other systems it is (void *) if you don't have
 	 * a cast it will choke the compiler: if you do have a cast then