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#ifdef HAVE_CONFIG_H
#include "autoconf.h"
#endif /* HAVE_CONFIG_H */
#include "osdep.h"
/*
* $Id: pselect.c,v 1.12 2013/01/31 23:01:47 karls Exp $
*
* Copyright (c) 2011, 2012
* Inferno Nettverk A/S, Norway. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. The above copyright notice, this list of conditions and the following
* disclaimer must appear in all copies of the software, derivative works
* or modified versions, and any portions thereof, aswell as in all
* supporting documentation.
* 2. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by
* Inferno Nettverk A/S, Norway.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Inferno Nettverk A/S requests users of this software to return to
*
* Software Distribution Coordinator or sdc@inet.no
* Inferno Nettverk A/S
* Oslo Research Park
* Gaustadallen 21
* NO-0349 Oslo
* Norway
*
* any improvements or extensions that they make and grant Inferno Nettverk A/S
* the rights to redistribute these changes.
*
*/
static const char rcsid[] =
"$Id: pselect.c,v 1.12 2013/01/31 23:01:47 karls Exp $";
int sockd_handledsignals(void); /* no sockd.h here. */
/* inspired by Stevens 'incorrect' implementation; best effort if no pselect */
inline int
pselect(int nfds, fd_set *rset, fd_set *wset, fd_set *xset,
const struct timespec *ts, const sigset_t *sigmask)
{
struct timeval tv;
sigset_t sm;
int n;
if (sigprocmask(SIG_SETMASK, sigmask, &sm) == -1)
return -1;
if (ts != NULL) {
tv.tv_sec = ts->tv_sec;
tv.tv_usec = ts->tv_nsec / 1000;
}
#if SOCKS_SERVER || BAREFOOTD || COVENANT
if (sockd_handledsignals() != 0) {
if (sigmask != NULL)
(void)sigprocmask(SIG_SETMASK, &sm, NULL);
errno = EINTR;
return -1;
}
#endif /* SOCKS_SERVER || BAREFOOTD || COVENANT */
n = select(nfds, rset, wset, xset, (ts == NULL) ? NULL : &tv);
if (sigmask != NULL && sigprocmask(SIG_SETMASK, &sm, NULL) == -1)
return -1;
return n;
}
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