Added interface version check to the C/Lua script interface. - Backgroud: If the "ld.so-trick" is used to start tools from tools_root so that shared libraries are also used from tools_root, another instance of libsb2.so must be installed to tools_root. That libsb2.so must be compiled against the libc, which is available at tools_root => there will be two separately compiled versions of libsb2.so. These must be compiled from the same source, but the binaries are very probably slightly different, if the host os version != tools_root distribution. And still these must use the same lua scripts. Forgetting to update one libsb2.so can cause all kinds of strange side-effects (already tried that :-)

1 files changed, 8 insertions, 0 deletions

diff --git a/lua_scripts/main.lua b/lua_scripts/main.lua
index f71297a..9e141fe 100644
--- a/lua_scripts/main.lua
+++ b/lua_scripts/main.lua
@@ -8,6 +8,14 @@
 debug = os.getenv("SBOX_MAPPING_DEBUG")
 debug_messages_enabled = sb.debug_messages_enabled()
 
+-- This version string is used to check that the lua scripts offer 
+-- what the C files expect, and v.v.
+-- Increment the serial number (first number) and update the initials
+-- and date whenever the interface beween Lua and C is changed.
+--
+-- NOTE: the corresponding identifier for C is in include/sb2.h
+sb2_lua_c_interface_version = "28,lta-2008-09-23"
+
 function do_file(filename)
 	if (debug_messages_enabled) then
 		sb.log("debug", string.format("Loading '%s'", filename))