# HG changeset patch
# User jbe
# Date 1432070122 -7200
# Node ID 08cf8e1865e9e534c64bfa12e84d3eb20b6ce0df
# Parent  2a5bd37034c699e17cf027985b31ce0db15472d5
Accept max length of zero for read methods

diff -r 2a5bd37034c6 -r 08cf8e1865e9 moonbridge_io.c
--- a/moonbridge_io.c	Fri May 15 16:42:50 2015 +0200
+++ b/moonbridge_io.c	Tue May 19 23:15:22 2015 +0200
@@ -175,7 +175,7 @@
   char *terminatorpos;
   ssize_t bytesread;
   handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
-  maxread = luaL_optinteger(L, 2, 0);
+  maxread = luaL_optinteger(L, 2, -1);
   terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
   if (terminatorlen) {
     luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
@@ -202,7 +202,7 @@
     remaining = -1;
     terminatorpos = NULL;
     if (
-      maxread > 0 &&
+      maxread >= 0 &&
       handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
     ) {
       remaining = (size_t)maxread - luabufcnt;