# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1385651841 -3600
# Node ID 1f6923702fc3765867178508cbecae1b2d6324b2
# Parent  826c522f303a5e21b08245307c9ab5b7ef05f19b# Parent  49e3c49eb0d8f33e94e2bf37e5421deacac5f499
Merge 0.9->0.10

diff -r 826c522f303a -r 1f6923702fc3 util-src/pposix.c
--- a/util-src/pposix.c	Sun Nov 24 14:24:21 2013 +0100
+++ b/util-src/pposix.c	Thu Nov 28 16:17:21 2013 +0100
@@ -676,6 +676,8 @@
 {
 	off_t offset, len;
 	FILE *f = *(FILE**) luaL_checkudata(L, 1, LUA_FILEHANDLE);
+	if (f == NULL)
+		luaL_error(L, "attempt to use a closed file");
 
 	offset = luaL_checkinteger(L, 2);
 	len = luaL_checkinteger(L, 3);