exitlikeprocess.c (1775B)
1 // $Id$ --*- c -*-- 2 3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de> 4 // 5 // This program is free software; you can redistribute it and/or modify 6 // it under the terms of the GNU General Public License as published by 7 // the Free Software Foundation; version 2 of the License. 8 // 9 // This program is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 // 14 // You should have received a copy of the GNU General Public License 15 // along with this program; if not, write to the Free Software 16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 18 19 #ifdef HAVE_CONFIG_H 20 # include <config.h> 21 #endif 22 23 #include <stdlib.h> 24 #include <sys/types.h> 25 #include <sys/resource.h> 26 #include <sys/wait.h> 27 #include <unistd.h> 28 #include <signal.h> 29 #include <sys/resource.h> 30 #include <stdio.h> 31 #include <errno.h> 32 33 #include "vserver.h" 34 35 static int pid; 36 static void 37 signalHandler(int signum) 38 { 39 xid_t xid = vc_get_task_xid(pid); 40 if (xid) 41 vc_ctx_kill(xid, pid, signum); 42 else 43 kill(pid, signum); 44 } 45 46 void 47 vc_exitLikeProcess(int p, int ret) 48 { 49 int status, i; 50 51 pid = p; 52 53 for (i = 0; i < 32; i++) 54 signal(i, signalHandler); 55 56 retry: 57 if (wait4(pid, &status, 0,0)==-1) { 58 if (errno==EINTR) 59 goto retry; 60 perror("wait()"); 61 exit(ret); 62 } 63 64 if (WIFEXITED(status)) 65 exit(WEXITSTATUS(status)); 66 67 if (WIFSIGNALED(status)) { 68 struct rlimit lim = { 0,0 }; 69 70 // prevent coredumps which might override the real ones 71 setrlimit(RLIMIT_CORE, &lim); 72 73 kill(getpid(), WTERMSIG(status)); 74 exit(1); 75 } 76 else 77 exit(ret); 78 }