X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=util-src%2Fpposix.c;h=73e0d6e390e145be2d2080b67103462d99c56ab8;hb=481ee86104d0dc5cc2965bd1c44a7080a3e4dc64;hp=8ad167b72d25ad5d0e0c3f619207302c09d05c1f;hpb=39bac64932953b78123d38f294cb9baae7c5496e;p=prosody.git

diff --git a/util-src/pposix.c b/util-src/pposix.c
index 8ad167b7..73e0d6e3 100644
--- a/util-src/pposix.c
+++ b/util-src/pposix.c
@@ -676,6 +676,8 @@ int lc_fallocate(lua_State* L)
 {
 	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);