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 <errno.h> 25 #ifdef __linux__ 26 #include <sys/prctl.h> 27 #endif 28 29 extern void libfunc (void); 30 31 int 32 main (int argc __attribute__ ((unused)), char **argv __attribute__ ((unused))) 33 { 34 /* Set locale. */ 35 (void) setlocale (LC_ALL, ""); 36 37 pid_t pid = fork (); 38 assert (pid != -1); 39 if (pid == 0) 40 { 41 int err = close (0); 42 assert (!err); 43 err = close (1); 44 assert (!err); 45 err = close (2); 46 assert (!err); 47 /* Make sure eu-stack -p works on this process even with 48 "restricted ptrace". */ 49 #ifdef PR_SET_PTRACER_ANY 50 prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0); 51 #endif 52 libfunc (); 53 abort (); 54 } 55 printf ("%d\n", pid); 56 return EXIT_SUCCESS; 57 } 58
