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Code Issues Releases Wiki Activity

replaced FOPEN_MAX with FD_SETSIZE

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Gerhard Rieger 2008-02-01 22:26:01 +01:00
parent 989790c57f
commit 8fbff188e1
4 changed files with 53 additions and 8 deletions
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4
CHANGES
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@ -12,6 +12,10 @@ corrections:
service name resolution failed due to byte order mistake
(thanks to James Sainsbury for reporting this problem)
socat would hang when invoked with many file descriptors already opened
fix: replaced FOPEN_MAX with FD_SETSIZE
thanks to Daniel Lucq for reporting this problem.
corrected some print statements and variable names
make uninstall did not uninstall procan

2
VERSION
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@ -1 +1 @@
"1.6.0.0+execpty+servres"
"1.6.0.0+execpty+servres+fd_setsize"

14
socat.c
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@ -1,5 +1,5 @@
/* source: socat.c */
/* Copyright Gerhard Rieger 2001-2007 */
/* Copyright Gerhard Rieger 2001-2008 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* this is the main source, including command line option parsing, general
@ -658,17 +658,17 @@ int childleftdata(xiofile_t *xfd) {
/*0 FD_SET(XIO_GETRDFD(xfd), &expt);*/
}
do {
retval = Select(FOPEN_MAX, &in, &out, &expt, &time0);
retval = Select(FD_SETSIZE, &in, &out, &expt, &time0);
} while (retval < 0 && errno == EINTR);
if (retval < 0) {
#if HAVE_FDS_BITS
Error5("select(%d, &0x%lx, &0x%lx, &0x%lx, {0}): %s",
FOPEN_MAX, in.fds_bits[0], out.fds_bits[0],
FD_SETSIZE, in.fds_bits[0], out.fds_bits[0],
expt.fds_bits[0], strerror(errno));
#else
Error5("select(%d, &0x%lx, &0x%lx, &0x%lx, {0}): %s",
FOPEN_MAX, in.__fds_bits[0], out.__fds_bits[0],
FD_SETSIZE, in.__fds_bits[0], out.__fds_bits[0],
expt.__fds_bits[0], strerror(errno));
#endif
return -1;
@ -835,7 +835,7 @@ int _socat(void) {
FD_SET(XIO_GETWRFD(sock1), &out);
}
}
retval = Select(FOPEN_MAX, &in, &out, &expt, to);
retval = Select(FD_SETSIZE, &in, &out, &expt, to);
_errno = errno;
if (retval < 0 && errno == EINTR) {
Info1("select(): %s", strerror(errno));
@ -851,12 +851,12 @@ int _socat(void) {
if (retval < 0) {
#if HAVE_FDS_BITS
Error7("select(%d, &0x%lx, &0x%lx, &0x%lx, %s%lu): %s",
FOPEN_MAX, in.fds_bits[0], out.fds_bits[0],
FD_SETSIZE, in.fds_bits[0], out.fds_bits[0],
expt.fds_bits[0], to?"&":"NULL/", to?to->tv_sec:0,
strerror(errno));
#else
Error7("select(%d, &0x%lx, &0x%lx, &0x%lx, %s%lu): %s",
FOPEN_MAX, in.__fds_bits[0], out.__fds_bits[0],
FD_SETSIZE, in.__fds_bits[0], out.__fds_bits[0],
expt.__fds_bits[0], to?"&":"NULL/", to?to->tv_sec:0,
strerror(errno));
#endif

41
test.sh
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@ -7896,6 +7896,47 @@ esac
N=$((N+1))
# test: up to socat 1.6.0.0, the highest file descriptor supported in socats
# transfer engine was FOPEN_MAX-1; this usually worked fine but would fail when
# socat was invoked with many file descriptors already opened. socat would
# just hang in the select() call. Thanks to Daniel Lucq for reporting this
# problem.
# FOPEN_MAX on different OS's:
# OS FOPEN_ ulimit ulimit FD_
# MAX -H -n -S -n SETSIZE
# Linux 2.6: 16 1024 1024 1024
# HP-UX 11.11: 60 2048 2048 2048
# FreeBSD: 20 11095 11095 1024
# Cygwin: 20 unlimit 256 64
# AIX: 32767 65534 65534
NAME=EXCEED_FOPEN_MAX
case "$TESTS" in
*%functions%*|*%maxfds%*|*%$NAME%*)
TEST="$NAME: more than FOPEN_MAX FDs in use"
# this test opens a number of FDs before socat is invoked. socat will have to
# allocate higher FD numbers and thus hang if it cannot handle them.
REDIR=
#set -vx
FOPEN_MAX=$($PROCAN -c 2>/dev/null |grep '^#define[ ][ ]*FOPEN_MAX' |awk '{print($3);}')
if [ -z "$FOPEN_MAX" ]; then
$PRINTF "test $F_n $TEST... ${YELLOW}could not determine FOPEN_MAX${NORMAL}\n" "$N"
numCANT=$((numCANT+1))
else
OPEN_FILES=$FOPEN_MAX # more than the highest FOPEN_MAX
i=3; while [ "$i" -lt "$OPEN_FILES" ]; do
REDIR="$REDIR $i>&2"
i=$((i+1))
done
#echo "$REDIR"
#testecho "$N" "$TEST" "" "pipe" "$opts -T 3" "" 1
#set -vx
eval testecho "\"$N\"" "\"$TEST\"" "\"\"" "pipe" "\"$opts -T 1\"" 1 $REDIR
#set +vx
fi # could determine FOPEN_MAX
esac
N=$((N+1))
echo "summary: $((N-1)) tests; $numOK ok, $numFAIL failed, $numCANT could not be performed"
if [ "$numFAIL" -gt 0 ]; then