strace/tests/attach-p-cmd.test

#!/bin/sh
#
# Check that simultaneous use of -p option and tracing of a command works.
#
# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
# 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
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

. "${srcdir=.}/init.sh"

run_prog_skip_if_failed \
	kill -0 $$
run_prog ./attach-p-cmd-cmd > /dev/null
run_prog ./attach-p-cmd-p 1 > /dev/null

./set_ptracer_any ./attach-p-cmd-p 1 > "$OUT" &
tracee_pid=$!

while ! [ -s "$OUT" ]; do
	kill -0 $tracee_pid 2> /dev/null ||
		fail_ 'set_ptracer_any sleep failed'
done

run_strace -a30 -echdir -p $tracee_pid ./attach-p-cmd-cmd > "$OUT"
{
printf '%-5d --- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---\n' $tracee_pid
printf '%-5d chdir("attach-p-cmd.test -p") = -1 ENOENT (No such file or directory)\n' $tracee_pid
printf '%-5d +++ exited with 0 +++\n' $tracee_pid
} >> "$OUT"

match_diff "$LOG" "$OUT"
rm -f "$OUT"