Basic protection against Lua os.exit() and posix.exec() (ticket #167)

- Track posix.fork() and only allow exit() and exec() if the script
  has forked. There are other questionable items in posix extensions
  too but these are the worst offenders.
- Using Lua registry for tracking forked status might be more Lua-way
  option but this'll do for now.

1 files changed, 1 insertions, 0 deletions

diff --git a/rpmio/rpmlua.c b/rpmio/rpmlua.c
index 22a2fc027..a2f70bf82 100644
--- a/rpmio/rpmlua.c
+++ b/rpmio/rpmlua.c
@@ -53,6 +53,7 @@ rpmlua rpmluaNew()
 	{"posix", luaopen_posix},
 	{"rex", luaopen_rex},
 	{"rpm", luaopen_rpm},
+	{"os",	luaopen_rpm_os},
 	{NULL, NULL},
     };