/* * Copyright (c) 2013-2015 Dmitry V. Levin <ldv@altlinux.org> * Copyright (c) 2013-2018 The strace developers. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "tests.h" #include <stdio.h> #include <unistd.h> #ifdef HAVE_PRCTL # include <sys/prctl.h> #endif int main(int argc, char **argv) { if (argc < 2) return 99; #ifdef HAVE_PRCTL /* Turn off restrictions on tracing if applicable. If the command * aren't available on this system, that's OK too. */ # ifndef PR_SET_PTRACER # define PR_SET_PTRACER 0x59616d61 # endif # ifndef PR_SET_PTRACER_ANY # define PR_SET_PTRACER_ANY -1UL # endif (void) prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0); #endif if (write(1, "\n", 1) != 1) { perror("write"); return 99; } (void) execvp(argv[1], argv + 1); perror(argv[1]); return 99; }