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/*
* $Id: io.c 1.1 Sat, 26 Aug 2000 15:22:34 -0400 trockij $
*/
/*
* Copyright (C) 1998 Jim Trocki
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <regex.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/types.h>
#include "muxpect.h"
int
setup_connect (muxconn_t *muxlist, char *muxerr, int muxerrsiz)
{
muxconn_t *c;
int s, fl;
int err;
struct protoent *pe;
c = muxlist;
err = 0;
if ((pe = getprotobyname ("tcp")) == NULL)
{
snprintf (muxerr, muxerrsiz, "could not look up tcp proto");
return 0;
}
while (c != NULL)
{
s = socket (AF_INET, SOCK_STREAM, pe->p_proto);
if (s < 0)
{
snprintf (muxerr, muxerrsiz, "could not create socket: %s",
sys_errlist[errno]);
return 0;
}
/*
* set nonblocking
*/
c->fd = s;
if ( (fl = fcntl (s, F_GETFL, 0)) < 0)
{
snprintf (muxerr, muxerrsiz, "could not get flags: %s",
sys_errlist[errno]);
return 0;
}
fl |= O_NONBLOCK;
if ( (fl = fcntl (s, F_SETFL, fl)) < 0)
{
snprintf (muxerr, muxerrsiz, "could not set flags: %s",
sys_errlist[errno]);
return 0;
}
/*
* connect
*/
c->saddr.sin_port = htons (c->port);
if (connect (s, &c->saddr, sizeof (c->saddr)) == -1 && errno != EINPROGRESS)
{
c->status = MUXCONN_FAILURE;
snprintf (c->detail, sizeof (c->detail),
"could not connect: %s", sys_errlist[errno]);
snprintf (c->summ, sizeof (c->summ),
"%s", c->hostname);
}
else
{
c->status = MUXCONN_INPROGRESS;
}
c = c->next;
}
return 1;
}
/*
* main IO loop
*/
int
io_loop (muxconn_t *muxlist, int timeout,
char *err,
int errsiz)
{
fd_set r_fd, w_fd;
struct timeval tval, t0, t1;
muxconn_t *c;
int d;
FD_ZERO (&r_fd);
FD_ZERO (&w_fd);
d = 0;
c = muxlist;
while (c->next != NULL)
{
if (c->status != MUXCONN_INPROGRESS)
{
c = c->next;
continue;
}
FD_SET (c->fd, &r_fd);
FD_SET (c->fd, &w_fd);
if (c->fd > d)
d = c->fd;
}
timerclear (&tval);
timerclear (&t0);
timerclear (&t1);
if (gettimeofday (&t0, NULL) == -1)
{
snprintf (err, errsiz, "could not gettimeofday: %s",
sys_errlist[errno]);
return 0;
}
while (timerisset (&tval))
{
#if 0
select ();
#endif
if (gettimeofday (&t1, NULL) < 0)
{
snprintf (err, errsiz, "could not gettimeofday: %s",
sys_errlist[errno]);
return 0;
}
}
c = muxlist;
while (c->next != NULL)
{
if (c->status == MUXCONN_INPROGRESS)
c->status = MUXCONN_TIMEOUT;
c = c->next;
}
return 1;
}
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