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fixed a bug where socat might crash when connecting to a unix domain socket using address GOPEN

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This commit is contained in:
Gerhard Rieger 2010-10-03 15:46:10 +02:00
parent a5fc4686a7
commit 4c3d1ca49d
4 changed files with 67 additions and 3 deletions
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5
CHANGES
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@ -1,4 +1,9 @@
corrections:
fixed a bug where socat might crash when connecting to a unix domain
socket using address GOPEN. Thanks to Martin Forssen for bug report and
patch.
####################### V 1.7.1.3:
security:

2
VERSION
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@ -1 +1 @@
"1.7.1.3"
"1.7.1.3+fixes"

59
test.sh
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@ -10241,6 +10241,65 @@ PORT=$((PORT+1))
N=$((N+1))
# test for a bug in gopen that lead to crash or warning when opening a unix
# domain socket with GOPEN
NAME=GOPEN_UNIX_CRASH
case "$TESTS" in
*%functions%*|*%bugs%*|*%gopen%*|*%unix%*|*%socket%*|*%$NAME%*)
TEST="$NAME: check crash when connecting to a unix domain socket using address GOPEN"
# a unix domain server is started in background. the check process connects to
# its socket. when this process crashes or issues a warning the bug is present.
# please note that a clean behaviour does not proof anything; behaviour of bug
# depends on the value of an uninitialized var
#set -vx
if ! eval $NUMCOND; then :; else
tf="$td/test$N.stdout"
te="$td/test$N.stderr"
ts="$td/test$N.sock"
tdiff="$td/test$N.diff"
da="test$N $(date) $RANDOM"
CMD0="$SOCAT $opts UNIX-LISTEN:$ts PIPE"
CMD1="$SOCAT $opts -d - GOPEN:$ts"
printf "test $F_n $TEST... " $N
$CMD0 >/dev/null 2>"${te}0" </dev/null &
pid0=$!
waitunixport "$ts" 1
echo "$da" |$CMD1 >"${tf}1" 2>"${te}1"
rc1=$?
kill $pid0 2>/dev/null; wait
if [ $rc1 -ne 0 ]; then
$PRINTF "$FAILED\n"
echo "$CMD0 &"
echo "$CMD1"
cat "${te}0"
cat "${te}1"
numFAIL=$((numFAIL+1))
elif grep -q ' W ' "${te}1"; then
$PRINTF "$FAILED\n"
echo "$CMD0 &"
echo "$CMD1"
cat "${te}0"
cat "${te}1"
numFAIL=$((numFAIL+1))
elif ! echo "$da" |diff - ${tf}1 >"$tdiff"; then
$PRINTF "$FAILED\n"
echo "$CMD0 &"
echo "$CMD1"
cat "${te}0"
cat "${te}1"
cat "$tdiff"
numFAIL=$((numFAIL+1))
else
$PRINTF "$OK\n"
numOK=$((numOK+1))
fi
fi # NUMCOND
;;
esac
N=$((N+1))
set +vx
###############################################################################
# here come tests that might affect your systems integrity. Put normal tests
# before this paragraph.

4
xio-gopen.c
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@ -1,5 +1,5 @@
/* source: xio-gopen.c */
/* Copyright Gerhard Rieger 2001-2008 */
/* Copyright Gerhard Rieger 2001-2010 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* this file contains the source for opening addresses of generic open type */
@ -46,7 +46,7 @@ static int xioopen_gopen(int argc, const char *argv[], struct opt *opts, int xio
if (exists && S_ISSOCK(st_mode)) {
#if WITH_UNIX
union sockaddr_union us;
socklen_t uslen;
socklen_t uslen = sizeof(us);
char infobuff[256];
Info1("\"%s\" is a socket, connecting to it", filename);