File: exitlikeprocess.c

package info (click to toggle)
util-vserver 0.30.216-pre3054-1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 10,556 kB
  • ctags: 3,909
  • sloc: ansic: 23,121; sh: 16,905; xml: 1,972; makefile: 383; python: 301; perl: 85; awk: 4
file content (78 lines) | stat: -rw-r--r-- 1,775 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
// $Id$    --*- c -*--

// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
//  
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//  
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//  
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.


#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <stdlib.h>
#include <sys/types.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include <unistd.h>
#include <signal.h>
#include <sys/resource.h>
#include <stdio.h>
#include <errno.h>

#include "vserver.h"

static int pid;
static void
signalHandler(int signum)
{
  xid_t xid = vc_get_task_xid(pid);
  if (xid)
    vc_ctx_kill(xid, pid, signum);
  else
    kill(pid, signum);
}

void
vc_exitLikeProcess(int p, int ret)
{
  int status, i;

  pid = p;

  for (i = 0; i < 32; i++)
    signal(i, signalHandler);

retry:
  if (wait4(pid, &status, 0,0)==-1) {
    if (errno==EINTR)
      goto retry;
    perror("wait()");
    exit(ret);
  }

  if (WIFEXITED(status))
    exit(WEXITSTATUS(status));

  if (WIFSIGNALED(status)) {
    struct rlimit	lim = { 0,0 };

    // prevent coredumps which might override the real ones
    setrlimit(RLIMIT_CORE, &lim);
      
    kill(getpid(), WTERMSIG(status));
    exit(1);
  }
  else
    exit(ret);
}