tests: add fork-f.test and vfork-f.test
Check how strace -f follows fork and vfork syscalls. * tests/fork-f.c: New file. * tests/fork-f.test: New test. * tests/vfork-f.c: New file. * tests/vfork-f.test: New test. * tests/Makefile.am (check_PROGRAMS): Add fork-f and vfork-f. (TESTS): Add fork-f.test and vfork-f.test. * tests/.gitignore: Add fork-f and vfork-f.
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2
tests/.gitignore
vendored
2
tests/.gitignore
vendored
@ -21,6 +21,7 @@ fcntl
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fcntl64
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file_handle
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filter-unavailable
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fork-f
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fstat
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fstat64
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fstatat64
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@ -102,6 +103,7 @@ unix-pair-send-recv
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userfaultfd
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utime
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utimensat
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vfork-f
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wait
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xattr
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xet_robust_list
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@ -56,6 +56,7 @@ check_PROGRAMS = \
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fcntl64 \
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file_handle \
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filter-unavailable \
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fork-f \
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fstat \
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fstat64 \
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fstatat64 \
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@ -136,6 +137,7 @@ check_PROGRAMS = \
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userfaultfd \
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utime \
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utimensat \
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vfork-f \
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wait \
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xattr \
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xet_robust_list \
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@ -184,6 +186,7 @@ TESTS = \
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fcntl64.test \
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file_handle.test \
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filter-unavailable.test \
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fork-f.test \
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fstat.test \
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fstat64.test \
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fstatat64.test \
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@ -260,6 +263,7 @@ TESTS = \
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userfaultfd.test \
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utime.test \
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utimensat.test \
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vfork-f.test \
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wait.test \
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xattr.test \
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xet_robust_list.test \
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103
tests/fork-f.c
Normal file
103
tests/fork-f.c
Normal file
@ -0,0 +1,103 @@
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/*
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* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/wait.h>
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static int
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logit(const char *const str)
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{
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return pwrite(-1, str, strlen(str), 0) >= 0;
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}
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int main(int ac, char **av, char **ep)
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{
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if (ac < 1)
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return 1;
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if (ac > 1)
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return logit(av[1]);
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logit("start");
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int fds[2];
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(void) close(0);
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if (pipe(fds)) {
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perror("pipe");
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return 77;
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}
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pid_t pid = fork();
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if (pid < 0) {
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perror("fork");
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return 77;
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}
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if (!pid) {
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close(fds[1]);
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if (read(0, fds, sizeof(int)))
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_exit(2);
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char *const args[] = { av[0], (char *) "exec", NULL };
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if (logit("child") || execve(args[0], args, args + 1))
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_exit(2);
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}
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close(0);
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logit("parent");
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close(fds[1]);
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int status;
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if (wait(&status) != pid) {
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perror("wait");
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return 77;
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}
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if (status) {
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fprintf(stderr, "status = %d\n", status);
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return 77;
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}
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logit("finish");
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pid_t ppid = getpid();
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close(-1);
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printf("%-5d pwrite64(-1, \"start\", 5, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"parent\", 6, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"child\", 5, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"exec\", 4, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"finish\", 6, 0) = -1 EBADF (%m)\n",
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ppid, ppid, pid, pid, ppid);
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return 0;
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}
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13
tests/fork-f.test
Executable file
13
tests/fork-f.test
Executable file
@ -0,0 +1,13 @@
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#!/bin/sh
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# Check how strace -f follows fork syscall.
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. "${srcdir=.}/init.sh"
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run_prog > /dev/null
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OUT="$LOG.out"
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run_strace -a32 -qq -f -epwrite64 -esignal=none $args > "$OUT"
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match_diff "$LOG" "$OUT"
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rm -f "$OUT"
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exit 0
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106
tests/vfork-f.c
Normal file
106
tests/vfork-f.c
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@ -0,0 +1,106 @@
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/*
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* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/wait.h>
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static inline int
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logit(const char *const str)
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{
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return pwrite(-1, str, strlen(str), 0) >= 0;
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}
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int main(int ac, char **av, char **ep)
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{
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if (ac < 1)
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return 1;
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if (ac > 1) {
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if (read(0, &ac, sizeof(int)))
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return 2;
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return logit(av[1]);
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}
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logit("start");
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int fds[2];
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(void) close(0);
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if (pipe(fds)) {
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perror("pipe");
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return 77;
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}
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if (fcntl(fds[1], F_SETFD, FD_CLOEXEC)) {
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perror("fcntl");
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return 77;
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}
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char *const args[] = { av[0], (char *) "exec", NULL };
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pid_t pid = vfork();
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if (pid < 0) {
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perror("vfork");
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return 77;
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}
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if (!pid) {
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if (logit("child") || execve(args[0], args, args + 1))
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_exit(2);
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}
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close(0);
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logit("parent");
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close(fds[1]);
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int status;
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if (wait(&status) != pid) {
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perror("wait");
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return 77;
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}
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if (status) {
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fprintf(stderr, "status = %d\n", status);
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return 77;
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}
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logit("finish");
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pid_t ppid = getpid();
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close(-1);
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printf("%-5d pwrite64(-1, \"start\", 5, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"child\", 5, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"parent\", 6, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"exec\", 4, 0) = -1 EBADF (%m)\n"
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"%-5d pwrite64(-1, \"finish\", 6, 0) = -1 EBADF (%m)\n",
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ppid, pid, ppid, pid, ppid);
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return 0;
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}
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5
tests/vfork-f.test
Executable file
5
tests/vfork-f.test
Executable file
@ -0,0 +1,5 @@
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#!/bin/sh
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# Check how strace -f follows vfork syscall.
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. "${srcdir=.}/fork-f.test"
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