1#!/bin/sh
2
3# Check how SCM_RIGHTS control messages are decoded in -y mode.
4
5. "${srcdir=.}/init.sh"
6
7# strace -y is implemented using /proc/$pid/fd
8[ -d /proc/self/fd/ ] ||
9	framework_skip_ '/proc/self/fd/ is not available'
10
11check_prog grep
12check_prog rm
13
14rm -f $LOG.*
15
16./scm_rights ||
17	fail_ 'scm_rights failed'
18
19args="-tt -ff -y -xx -enetwork -o $LOG ./scm_rights"
20$STRACE $args ||
21	fail_ "$STRACE $args failed"
22
23"$srcdir"/../strace-log-merge $LOG > $LOG || {
24	cat $LOG
25	fail_ 'strace-log-merge failed'
26}
27rm -f $LOG.*
28
29grep_log()
30{
31	local syscall="$1"; shift
32	local prefix='[1-9][0-9]* +[0-9]+:[0-9]+:[0-9]+\.[0-9]+ +'
33
34	LC_ALL=C grep -E -x "$prefix$syscall$*" $LOG > /dev/null || {
35		cat $LOG
36		fail_ "$STRACE $args failed to trace \"$syscall\" properly"
37	}
38}
39
40grep_log sendmsg '\(1<socket:\[[0-9]+\]>, \{msg_name\(0\)=NULL, msg_iov\(1\)=\[\{"\\x00\\x00\\x00\\x00[^"]*", [1-9][0-9]*\}\], msg_controllen=[1-9][0-9]*, \{cmsg_len=[1-9][0-9]*, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, \{3</dev/null>\}\}, msg_flags=0\}, 0\) += [1-9][0-9]*'
41grep_log recvmsg '\(0<socket:\[[0-9]+\]>, \{msg_name\(0\)=NULL, msg_iov\(1\)=\[\{"\\x00\\x00\\x00\\x00[^"]*", [1-9][0-9]*\}\], msg_controllen=[1-9][0-9]*, \{cmsg_len=[1-9][0-9]*, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, \{3</dev/null>\}\}, msg_flags=0\}, 0\) += [1-9][0-9]*'
42
43exit 0
44