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in ignoreeof mode socat also blocked data transfer in the other direction

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This commit is contained in:
Gerhard Rieger 2008-09-19 09:03:59 +02:00
parent f8496421f9
commit 0e1eb7e4b4
4 changed files with 111 additions and 47 deletions

51
socat.c
View file

@ -760,10 +760,6 @@ int _socat(void) {
/* for ignoreeof */
if (polling) {
if (!wasaction) {
/* yes we could do it with poll but I like readable trace output */
if (socat_opts.pollintv.tv_sec) Sleep(socat_opts.pollintv.tv_sec);
if (socat_opts.pollintv.tv_usec) Usleep(socat_opts.pollintv.tv_usec);
if (socat_opts.total_timeout.tv_sec != 0 ||
socat_opts.total_timeout.tv_usec != 0) {
if (total_timeout.tv_usec < socat_opts.pollintv.tv_usec) {
@ -804,6 +800,7 @@ int _socat(void) {
closing = 2;
}
/* frame 1: set the poll parameters and loop over poll() EINTR) */
do { /* loop over poll() EINTR */
int _errno;
@ -817,11 +814,20 @@ int _socat(void) {
closing = 2;
}
/* now the fds are assigned */
/* use the ignoreeof timeout if appropriate */
if (polling) {
int ptimeout = 1000*socat_opts.pollintv.tv_sec +
socat_opts.pollintv.tv_usec/1000;
if (closing == 0 || ptimeout < timeout) {
timeout = ptimeout;
}
}
/* now the fds will be assigned */
if (XIO_READABLE(sock1) &&
!(XIO_RDSTREAM(sock1)->eof > 1 && !XIO_RDSTREAM(sock1)->ignoreeof) &&
!socat_opts.righttoleft) {
if (!mayrd1) {
if (!mayrd1 && !(XIO_RDSTREAM(sock1)->eof > 1)) {
fd1in->fd = XIO_GETRDFD(sock1);
fd1in->events = POLLIN;
} else {
@ -840,7 +846,7 @@ int _socat(void) {
if (XIO_READABLE(sock2) &&
!(XIO_RDSTREAM(sock2)->eof > 1 && !XIO_RDSTREAM(sock2)->ignoreeof) &&
!socat_opts.lefttoright) {
if (!mayrd2) {
if (!mayrd2 && !(XIO_RDSTREAM(sock2)->eof > 1)) {
fd2in->fd = XIO_GETRDFD(sock2);
fd2in->events = POLLIN;
} else {
@ -856,13 +862,15 @@ int _socat(void) {
fd1out->fd = -1;
fd2in->fd = -1;
}
/* frame 0: innermost part of the transfer loop: check FD status */
retval = xiopoll(fds, 4, timeout);
_errno = errno;
if (retval < 0 && errno == EINTR) {
Info1("poll(): %s", strerror(errno));
if (retval >= 0 || errno != EINTR) {
break;
}
_errno = errno;
Info1("poll(): %s", strerror(errno));
errno = _errno;
} while (retval < 0 && errno == EINTR);
} while (true);
/* attention:
when an exec'd process sends data and terminates, it is unpredictable
@ -881,7 +889,13 @@ int _socat(void) {
closing>=1?socat_opts.closwait.tv_usec:socat_opts.total_timeout.tv_usec);
if (polling && !wasaction) {
/* there was a ignoreeof poll timeout, use it */
;
polling = 0; /*%%%*/
if (XIO_RDSTREAM(sock1)->ignoreeof) {
mayrd1 = 0;
}
} else if (polling && wasaction) {
wasaction = 0;
} else if (socat_opts.total_timeout.tv_sec != 0 ||
socat_opts.total_timeout.tv_usec != 0) {
/* there was a total inactivity timeout */
@ -970,11 +984,15 @@ int _socat(void) {
/* NOW handle EOFs */
/*0 Debug4("bytes1=F_Zd, XIO_RDSTREAM(sock1)->eof=%d, XIO_RDSTREAM(sock1)->ignoreeof=%d, closing=%d",
bytes1, XIO_RDSTREAM(sock1)->eof, XIO_RDSTREAM(sock1)->ignoreeof,
closing);*/
if (bytes1 == 0 || XIO_RDSTREAM(sock1)->eof >= 2) {
if (XIO_RDSTREAM(sock1)->ignoreeof && !closing) {
Debug1("socket 1 (fd %d) is at EOF, ignoring",
XIO_RDSTREAM(sock1)->fd); /*! */
polling = 1;
mayrd1 = true;
polling = 1; /* do not hook this eof fd to poll for pollintv*/
} else {
Notice1("socket 1 (fd %d) is at EOF", XIO_GETRDFD(sock1));
xioshutdown(sock2, SHUT_WR);
@ -982,13 +1000,16 @@ int _socat(void) {
break;
}
}
} else if (polling && XIO_RDSTREAM(sock1)->ignoreeof) {
polling = 0;
}
if (bytes2 == 0 || XIO_RDSTREAM(sock2)->eof >= 2) {
if (XIO_RDSTREAM(sock2)->ignoreeof && !closing) {
Debug1("socket 2 (fd %d) is at EOF, ignoring",
XIO_RDSTREAM(sock2)->fd);
polling = 1;
mayrd2 = true;
polling = 1; /* do not hook this eof fd to poll for pollintv*/
} else {
Notice1("socket 2 (fd %d) is at EOF", XIO_GETRDFD(sock2));
xioshutdown(sock1, SHUT_WR);
@ -996,6 +1017,8 @@ int _socat(void) {
break;
}
}
} else if (polling && XIO_RDSTREAM(sock2)->ignoreeof) {
polling = 0;
}
}