https://github.com/drylikov/lua_setuid

A Lua module that provides setuid and chroot functionality.
https://github.com/drylikov/lua_setuid

Last synced: 8 days ago
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A Lua module that provides setuid and chroot functionality.

• Host: GitHub
• URL: https://github.com/drylikov/lua_setuid
• Owner: drylikov
• License: mit
• Created: 2024-06-02T11:39:00.000Z (6 months ago)
• Default Branch: drylikov
• Last Pushed: 2024-09-07T00:44:06.000Z (2 months ago)
• Last Synced: 2024-09-07T03:23:39.735Z (2 months ago)
• Language: C
• Size: 5.86 KB
• Stars: 3
• Watchers: 4
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
A Lua module that provides `setuid` and `chroot` functionality.

Requirements

------------

lua >= 5.1

Usage

-----

`setuid.setuid( username )`: Change the current process user ID (real,

effective, saved) to that of `username`.

`setuid.chroot( path, username )`: `chroot` into `path`. If `username`

is not `nil`, then change the current process user ID to that of

`username`. 

We need `setuid.chroot` to optionally accept a username for changing the

user ID after `chroot`ing since `getpwnam` is reading password file

entries behind the scenes. We need to obtain the target user ID before

`chroot`ing, however we require root to `chroot` so we need to actually

set the user ID afterwards.

Example

-------

	local setuid = require( "Lua_setuid" )

	-- in a real program you can only do one of these

	assert( setuid.chroot( "src", "notroot" ) )

	assert( setuid.chroot( "src" ) )

	assert( setuid.setuid( "notroot" ) )