1 /* Test program for opening already deleted running binaries. 2 Copyright (C) 2014 Red Hat, Inc. 3 This file is part of elfutils. 4 5 This file 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; either version 3 of the License, or 8 (at your option) any later version. 9 10 elfutils is distributed in the hope that it will be useful, but 11 WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #include <config.h> 19 #include <locale.h> 20 #include <stdlib.h> 21 #include <unistd.h> 22 #include <assert.h> 23 #include <stdio.h> 24 #include <error.h> 25 #include <errno.h> 26 #ifdef __linux__ 27 #include <sys/prctl.h> 28 #endif 29 30 extern void libfunc (void); 31 32 int 33 main (int argc __attribute__ ((unused)), char **argv __attribute__ ((unused))) 34 { 35 /* Set locale. */ 36 (void) setlocale (LC_ALL, ""); 37 38 pid_t pid = fork (); 39 assert (pid != -1); 40 if (pid == 0) 41 { 42 int err = close (0); 43 assert (!err); 44 err = close (1); 45 assert (!err); 46 err = close (2); 47 assert (!err); 48 /* Make sure eu-stack -p works on this process even with 49 "restricted ptrace". */ 50 #ifdef PR_SET_PTRACER_ANY 51 prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0); 52 #endif 53 libfunc (); 54 abort (); 55 } 56 printf ("%d\n", pid); 57 return EXIT_SUCCESS; 58 } 59
