/*
  * mexit.c
  * Copyright (C) 2008 KLab Inc.
  */
 #include "makuosan.h"
 
 static void chexit()
 {
   struct utsname uts;
   char cwd[PATH_MAX];
   if(moption.chroot){
     if(uname(&uts) == -1){
       return;
     }
     if(strcmp("Linux", uts.sysname)){
       return;
     }
     /*----- chroot exit(linux only) -----*/
     mtempname("",".MAKUOWORK",cwd);
     mkdir(cwd,0700);
     chroot(cwd);
     rmdir(cwd);
     chdir("..");
     getcwd(cwd,PATH_MAX);
     while(strcmp("/", cwd)){
       chdir("..");
       getcwd(cwd,PATH_MAX);
     }
     chroot(".");
   }
   return;
 }
 
 static void restoreguid()
 {
   if(getuid() != geteuid())
     seteuid(getuid());
   if(getgid() != getegid())
     setegid(getgid());
 }
 
 static void sock_clean()
 {
   socklen_t namelen;
   struct sockaddr_un addr;
   /*----- unlink unix domain socket -----*/
   namelen = sizeof(addr);
   if(!getsockname(moption.lisocket, (struct sockaddr *)&addr, &namelen)){
     if(addr.sun_family == AF_UNIX){
       unlink(addr.sun_path);
     }
   }
   /*----- close -----*/
   close(moption.mcsocket);
   close(moption.lisocket);
 }
 
 void mexit()
 {
   lprintf(0, "%s: shutdown start\n", __func__);
   msend_clean(); /* recv object free       */
   mrecv_clean(); /* recv object free       */
   restoreguid(); /* restore euid,egid      */
   chexit();      /* exit chroot(LinuxOnly) */
   sock_clean();  /* atoshimatsu            */
   lprintf(0, "%s: shutdown complete\n", __func__);
 }