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Socat printed the "socket ... is at EOF" message multiple times

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This commit is contained in:
Gerhard Rieger 2019-12-30 10:05:33 +01:00
parent 3be18bdc1f
commit 12f7833a8f
4 changed files with 49 additions and 5 deletions
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4
CHANGES
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@ -26,6 +26,10 @@ Corrections:
Test: IP_SENDTO_6
Thanks to Sören for sending an initial patch.
Under certain circumstances, Socat printed the "socket ... is at EOF"
multiple times.
Test: MULTIPLE_EOF
####################### V 1.7.3.3:
Corrections:

8
socat.c
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@ -1076,10 +1076,10 @@ int _socat(void) {
XIO_RDSTREAM(sock1)->fd); /*! */
mayrd1 = true;
polling = 1; /* do not hook this eof fd to poll for pollintv*/
} else {
} else if (XIO_RDSTREAM(sock1)->eof <= 2) {
Notice1("socket 1 (fd %d) is at EOF", XIO_GETRDFD(sock1));
xioshutdown(sock2, SHUT_WR);
XIO_RDSTREAM(sock1)->eof = 2;
XIO_RDSTREAM(sock1)->eof = 3;
XIO_RDSTREAM(sock1)->ignoreeof = false;
}
} else if (polling && XIO_RDSTREAM(sock1)->ignoreeof) {
@ -1099,10 +1099,10 @@ int _socat(void) {
XIO_RDSTREAM(sock2)->fd);
mayrd2 = true;
polling = 1; /* do not hook this eof fd to poll for pollintv*/
} else {
} else if (XIO_RDSTREAM(sock2)->eof <= 2) {
Notice1("socket 2 (fd %d) is at EOF", XIO_GETRDFD(sock2));
xioshutdown(sock1, SHUT_WR);
XIO_RDSTREAM(sock2)->eof = 2;
XIO_RDSTREAM(sock2)->eof = 3;
XIO_RDSTREAM(sock2)->ignoreeof = false;
}
} else if (polling && XIO_RDSTREAM(sock2)->ignoreeof) {

39
test.sh
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@ -13094,6 +13094,45 @@ esac
N=$((N+1))
# test if the multiple EOF messages are fixed
NAME=MULTIPLE_EOF
case "$TESTS" in
*%$N%*|*%functions%*|*%bugs%*|*%unix%*|*%socket%*|*%$NAME%*)
TEST="$NAME: multiple EOF messages"
# start two processes, connected via UNIX socket. The listener gets EOF from local address immediately; the second process then sends data. If the listener reports "socket 1 (fd .*) is at EOF" only once, the test succeeded
if ! eval $NUMCOND; then :; else
ts="$td/test$N.sock"
tf="$td/test$N.stdout"
te="$td/test$N.stderr"
tdiff="$td/test$N.diff"
da="test$N $(date) $RANDOM"
CMD0="$TRACE $SOCAT $opts -d -d UNIX-LISTEN:$ts /dev/null"
CMD1="$TRACE $SOCAT $opts -d -d - UNIX-CONNECT:$ts"
printf "test $F_n $TEST... " $N
$CMD0 >/dev/null 2>"${te}0" &
pid0=$!
waitunixport $ts 1
echo "$da" |$CMD1 >"${tf}1" 2>"${te}1"
rc1=$?
kill $pid0 2>/dev/null; wait
if [ $(grep "socket 2 (fd .*) is at EOF" ${te}0 |wc -l) -eq 1 ]; then
$PRINTF "$OK\n"
numOK=$((numOK+1))
else
$PRINTF "$FAILED\n"
echo "$CMD0 &"
echo "$CMD1"
cat "${te}0"
cat "${te}1"
numFAIL=$((numFAIL+1))
listFAIL="$listFAIL $N"
fi
fi # NUMCOND
;;
esac
N=$((N+1))
##################################################################################
#=================================================================================
# here come tests that might affect your systems integrity. Put normal tests

3
xio.h
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@ -129,7 +129,8 @@ typedef struct single {
bool ignoreeof; /* option ignoreeof; do not pass eof condition to app*/
int eof; /* 1..exec'd child has died, but no explicit eof
occurred
2..fd0 has reached EOF (definitely; never with
2..fd0 has reached EOF, but check for ignoreeof
3..fd0 has reached EOF (definitely; never with
ignoreeof! */
size_t wsize; /* write always this size; 0..all available */
size_t readbytes; /* read only so many bytes; 0...unlimited */