getinitpid.c (1471B)
1 // $Id$ --*- c++ -*-- 2 3 // Copyright (C) 2003 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 "compat.h" 24 #include "vserver.h" 25 #include "internal.h" 26 #include "src/util.h" 27 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <unistd.h> 31 32 int main(int argc, char *argv[]) 33 { 34 char buf[sizeof(int)*3+2]; 35 xid_t xid; 36 struct vc_vx_info info; 37 38 if (argc==1) xid = vc_get_task_xid(0); 39 else xid = vc_get_task_xid(atoi(argv[1])); 40 41 if (xid==VC_NOCTX) { 42 perror("vc_get_task_xid()"); 43 return EXIT_FAILURE; 44 } 45 46 if (vc_get_vx_info(xid, &info)==-1) { 47 perror("vc_get_vx_info()"); 48 return EXIT_FAILURE; 49 } 50 51 utilvserver_fmt_int(buf, info.initpid); 52 53 WRITE_STR(1, buf); 54 WRITE_MSG(1, "\n"); 55 56 return 0; 57 }