mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-12-21 01:20:00 +00:00
133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
/* $OpenBSD: sigaction.c,v 1.4 2001/01/22 18:01:48 millert Exp $ */
|
|
|
|
/****************************************************************************
|
|
* Copyright (c) 1998,2000 Free Software Foundation, Inc. *
|
|
* *
|
|
* Permission is hereby granted, free of charge, to any person obtaining a *
|
|
* copy of this software and associated documentation files (the *
|
|
* "Software"), to deal in the Software without restriction, including *
|
|
* without limitation the rights to use, copy, modify, merge, publish, *
|
|
* distribute, distribute with modifications, sublicense, and/or sell *
|
|
* copies of the Software, and to permit persons to whom the Software is *
|
|
* furnished to do so, subject to the following conditions: *
|
|
* *
|
|
* The above copyright notice and this permission notice shall be included *
|
|
* in all copies or substantial portions of the Software. *
|
|
* *
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
|
|
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
|
|
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
|
|
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
|
|
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
* *
|
|
* Except as contained in this notice, the name(s) of the above copyright *
|
|
* holders shall not be used in advertising or otherwise to promote the *
|
|
* sale, use or other dealings in this Software without prior written *
|
|
* authorization. *
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
|
|
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
|
|
****************************************************************************/
|
|
|
|
/* OPENBSD ORIGINAL: lib/libcurses/base/sigaction.c */
|
|
|
|
#include "includes.h"
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include "sigact.h"
|
|
|
|
/* This file provides sigaction() emulation using sigvec() */
|
|
/* Use only if this is non POSIX system */
|
|
|
|
#if !HAVE_SIGACTION && HAVE_SIGVEC
|
|
|
|
int
|
|
sigaction(int sig, struct sigaction *sigact, struct sigaction *osigact)
|
|
{
|
|
return sigvec(sig, sigact ? &sigact->sv : NULL,
|
|
osigact ? &osigact->sv : NULL);
|
|
}
|
|
|
|
int
|
|
sigemptyset (sigset_t *mask)
|
|
{
|
|
if (!mask) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
*mask = 0;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sigprocmask (int mode, sigset_t *mask, sigset_t *omask)
|
|
{
|
|
sigset_t current = sigsetmask(0);
|
|
|
|
if (!mask) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
if (omask)
|
|
*omask = current;
|
|
|
|
if (mode == SIG_BLOCK)
|
|
current |= *mask;
|
|
else if (mode == SIG_UNBLOCK)
|
|
current &= ~*mask;
|
|
else if (mode == SIG_SETMASK)
|
|
current = *mask;
|
|
|
|
sigsetmask(current);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sigsuspend (sigset_t *mask)
|
|
{
|
|
if (!mask) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
return sigpause(*mask);
|
|
}
|
|
|
|
int
|
|
sigdelset (sigset_t *mask, int sig)
|
|
{
|
|
if (!mask) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
*mask &= ~sigmask(sig);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sigaddset (sigset_t *mask, int sig)
|
|
{
|
|
if (!mask) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
*mask |= sigmask(sig);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sigismember (sigset_t *mask, int sig)
|
|
{
|
|
if (!mask) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
return (*mask & sigmask(sig)) != 0;
|
|
}
|
|
|
|
#endif
|