From 6d8606941c7bbdb72c76c81fef8eb91232ffc918 Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie <jblake@omgwallhack.org>
Date: Wed, 7 Nov 2012 11:40:57 -0800
Subject: Joe wanted it configurable. Laaame.

---
 main.c | 62 --------------------------------------------------------------
 1 file changed, 62 deletions(-)
 delete mode 100644 main.c

(limited to 'main.c')

diff --git a/main.c b/main.c
deleted file mode 100644
index 8d07953..0000000
--- a/main.c
+++ /dev/null
@@ -1,62 +0,0 @@
-#define _GNU_SOURCE
-
-#include <assert.h>
-#include <errno.h>
-#include <grp.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-int main( int argc, char *argv[] ) {
-
-  if ( argc < 4 ) {
-    fprintf( stderr, "Usage: %s user group cmd [args..]\n", argv[0] );
-    return 1;
-  };
-
-  char *user = argv[1];
-  char *group = argv[2];
-  char *cmd = argv[3];
-  char **args = argv + 3;
-
-  char *end;
-  unsigned long tmp;
-
-  struct passwd *userpw;
-  struct group *grouppw;
-
-  tmp = strtoul( user, &end, 10 );
-  if ( end != user && ! *end ) {
-    userpw = getpwuid( tmp );
-  } else {
-    userpw = getpwnam( user );
-  };
-  assert( userpw != NULL );
-
-  tmp = strtoul( group, &end, 10 );
-  if ( end != user && ! *end ) {
-    grouppw = getgrgid( tmp );
-  } else {
-    grouppw = getgrnam( group );
-  };
-  assert( grouppw != NULL );
-
-  // literally the only security check
-  assert( grouppw->gr_gid != 0 );
-  assert( userpw->pw_uid != 0 );
-
-  if ( setgroups( 0, NULL ) != 0 )
-    assert_perror( errno );
-
-  if ( setregid( grouppw->gr_gid, grouppw->gr_gid ) != 0 )
-    assert_perror( errno );
-
-  if ( setreuid( userpw->pw_uid, userpw->pw_uid ) != 0 )
-    assert_perror( errno );
-
-  execv( cmd, args );
-  assert_perror( errno );
-
-}
-- 
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