PenTest/nmap
1
0
Fork 0
mirror of https://github.com/nmap/nmap.git synced 2026-01-19 04:39:01 +00:00
Code Issues Projects Releases Wiki Activity

Get rid of the global traceback index.

Browse Source 
Just push the traceback function before lua_pcall. The now has to be
less meticulously maintained between lua_setup and lua_run.
This commit is contained in:
david
2013-09-05 20:35:48 +00:00
parent c38367b8c8
commit 7ab4da3581
1 changed files with 5 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
ncat/ncat_lua.c
View File

@@ -125,7 +125,6 @@
#include "ncat_lua.h"
static lua_State *L;
static int last_function_number;
static void report(char *prefix)
{
@@ -160,18 +159,15 @@ void lua_setup(void)
if (luaL_loadfile(L, o.cmdexec) != 0)
report("Error loading the Lua script");
/* install the traceback function */
last_function_number = lua_gettop(L);
lua_pushcfunction(L, traceback);
lua_insert(L, last_function_number);
}
void lua_run(void)
{
if (lua_pcall(L, 0, 0, last_function_number) != LUA_OK && !lua_isnil(L, -1)) {
/* handle the error; the code below is taken from lua.c, Lua source code */
lua_remove(L, last_function_number);
/* The chunk as read from lua_setup is on top of the stack. Put the
traceback function before it and run it. */
lua_pushcfunction(L, traceback);
lua_insert(L, -2);
if (lua_pcall(L, 0, 0, -2) != LUA_OK && !lua_isnil(L, -1)) {
report("Error running the Lua script");
} else {
if (o.debug)