strace/tests/net-fd.test

#!/bin/sh

# Check how network syscalls are traced when decoding socket descriptors

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

# strace -y is implemented using /proc/self/fd
[ -d /proc/self/fd/ ] ||
	framework_skip_ '/proc/self/fd/ is not available'

check_prog grep

rm -f $LOG.*

addr=net-fd-local-stream
./net-accept-connect $addr ||
	fail_ 'net-accept-connect failed'

# using -y to test socket descriptors 'paths' decoding
args="-tt -ff -y -enetwork ./net-accept-connect $addr"
$STRACE -o "$LOG" $args ||
	fail_ "$STRACE $args failed"

"$srcdir"/../strace-log-merge $LOG > $LOG || {
	cat $LOG
	fail_ 'strace-log-merge failed'
}

rm -f $LOG.*

grep_log()
{
	local syscall="$1"; shift
	local prefix='[1-9][0-9]* +[0-9]+:[0-9]+:[0-9]+\.[0-9]+ +'

	LC_ALL=C grep -E -x "$prefix$syscall$@" $LOG > /dev/null || {
		cat $LOG
		fail_ "strace -enetwork failed to trace \"$syscall\" properly"
	}
}
grep_log bind '\(0<socket:\[[0-9]+\]>, \{sa_family=AF_(LOCAL|UNIX|FILE), sun_path="'$addr'"\}, 22\) += 0'
grep_log listen '\(0<socket:\[[0-9]+\]>, 5\) += 0'
grep_log getsockname '\(0<socket:\[[0-9]+\]>, \{sa_family=AF_(LOCAL|UNIX|FILE), sun_path="'$addr'"\}, \[22\]\) += 0'
grep_log accept '\(0<socket:\[[0-9]+\]>, \{sa_family=AF_(LOCAL|UNIX|FILE), NULL\}, \[2\]\) += 1<socket:\[[0-9]+\]>'
grep_log connect '\(1<socket:\[[0-9]+\]>, \{sa_family=AF_(LOCAL|UNIX|FILE), sun_path="'$addr'"\}, 22\) += 0'

exit 0