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NetBSD/sys/compat/osf1/osf1_signal.c

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/* $NetBSD: osf1_signal.c,v 1.17 2000/08/21 02:33:04 thorpej Exp $ */
/*
* Copyright (c) 1999 Christopher G. Demetriou. 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. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/kernel.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/malloc.h>
#include <sys/syscallargs.h>
#include <compat/osf1/osf1.h>
#include <compat/osf1/osf1_signal.h>
#include <compat/osf1/osf1_syscallargs.h>
#include <compat/osf1/osf1_util.h>
#include <compat/osf1/osf1_cvt.h>
#if 0
int
osf1_sys_kill(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_kill_args *uap = v;
struct sys_kill_args ka;
SCARG(&ka, pid) = SCARG(uap, pid);
SCARG(&ka, signum) = osf1_signal_xlist[SCARG(uap, signum)];
return sys_kill(p, &ka, retval);
}
#endif
int
osf1_sys_sigaction(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigaction_args *uap = v;
struct osf1_sigaction *nosa, *oosa, tmposa;
struct sigaction *nbsa, *obsa, tmpbsa;
struct sys___sigaction14_args sa;
caddr_t sg;
int error;
sg = stackgap_init(p->p_emul);
nosa = SCARG(uap, nsa);
oosa = SCARG(uap, osa);
if (oosa != NULL)
obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
else
obsa = NULL;
if (nosa != NULL) {
nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
if ((error = copyin(nosa, &tmposa, sizeof(tmposa))) != 0)
return error;
osf1_cvt_sigaction_to_native(&tmposa, &tmpbsa);
if ((error = copyout(&tmpbsa, nbsa, sizeof(tmpbsa))) != 0)
return error;
} else
nbsa = NULL;
SCARG(&sa, signum) = osf1_signal_xlist[SCARG(uap, signum)];
SCARG(&sa, nsa) = nbsa;
SCARG(&sa, osa) = obsa;
if ((error = sys___sigaction14(p, &sa, retval)) != 0)
return error;
if (oosa != NULL) {
if ((error = copyin(obsa, &tmpbsa, sizeof(tmpbsa))) != 0)
return error;
osf1_cvt_sigaction_from_native(&tmpbsa, &tmposa);
if ((error = copyout(&tmposa, oosa, sizeof(tmposa))) != 0)
return error;
}
return 0;
}
int
osf1_sys_sigaltstack(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigaltstack_args *uap = v;
struct osf1_sigaltstack *noss, *ooss, tmposs;
struct sigaltstack *nbss, *obss, tmpbss;
struct sys___sigaltstack14_args sa;
caddr_t sg;
int error;
sg = stackgap_init(p->p_emul);
noss = SCARG(uap, nss);
ooss = SCARG(uap, oss);
if (ooss != NULL)
obss = stackgap_alloc(&sg, sizeof(struct sigaltstack));
else
obss = NULL;
if (noss != NULL) {
nbss = stackgap_alloc(&sg, sizeof(struct sigaltstack));
if ((error = copyin(noss, &tmposs, sizeof(tmposs))) != 0)
return error;
if ((error = osf1_cvt_sigaltstack_to_native(&tmposs, &tmpbss)) != 0)
return error;
if ((error = copyout(&tmpbss, nbss, sizeof(tmpbss))) != 0)
return error;
} else
nbss = NULL;
SCARG(&sa, nss) = nbss;
SCARG(&sa, oss) = obss;
if ((error = sys___sigaltstack14(p, &sa, retval)) != 0)
return error;
if (obss != NULL) {
if ((error = copyin(obss, &tmpbss, sizeof(tmpbss))) != 0)
return error;
osf1_cvt_sigaltstack_from_native(&tmpbss, &tmposs);
if ((error = copyout(&tmposs, ooss, sizeof(tmposs))) != 0)
return error;
}
return 0;
}
#if 0
int
osf1_sys_signal(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_signal_args *uap = v;
int signum = osf1_signal_xlist[OSF1_SIGNO(SCARG(uap, signum))];
int error;
caddr_t sg = stackgap_init(p->p_emul);
if (signum <= 0 || signum >= OSF1_NSIG) {
if (OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGNAL_MASK ||
OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGDEFER_MASK)
*retval = (int)OSF1_SIG_ERR;
return EINVAL;
}
switch (OSF1_SIGCALL(SCARG(uap, signum))) {
case OSF1_SIGDEFER_MASK:
/*
* sigset is identical to signal() except
* that SIG_HOLD is allowed as
* an action.
*/
if (SCARG(uap, handler) == OSF1_SIG_HOLD) {
struct sys_sigprocmask_args sa;
SCARG(&sa, how) = SIG_BLOCK;
SCARG(&sa, mask) = sigmask(signum);
return sys_sigprocmask(p, &sa, retval);
}
/* FALLTHROUGH */
case OSF1_SIGNAL_MASK:
{
struct sys_sigaction_args sa_args;
struct sigaction *nbsa, *obsa, sa;
nbsa = stackgap_alloc(&sg, sizeof(struct sigaction));
obsa = stackgap_alloc(&sg, sizeof(struct sigaction));
SCARG(&sa_args, signum) = signum;
SCARG(&sa_args, nsa) = nbsa;
SCARG(&sa_args, osa) = obsa;
sa.sa_handler = SCARG(uap, handler);
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
#if 0
if (signum != SIGALRM)
sa.sa_flags = SA_RESTART;
#endif
if ((error = copyout(&sa, nbsa, sizeof(sa))) != 0)
return error;
if ((error = sys_sigaction(p, &sa_args, retval)) != 0) {
DPRINTF(("signal: sigaction failed: %d\n",
error));
*retval = (int)OSF1_SIG_ERR;
return error;
}
if ((error = copyin(obsa, &sa, sizeof(sa))) != 0)
return error;
*retval = (int)sa.sa_handler;
return 0;
}
case OSF1_SIGHOLD_MASK:
{
struct sys_sigprocmask_args sa;
SCARG(&sa, how) = SIG_BLOCK;
SCARG(&sa, mask) = sigmask(signum);
return sys_sigprocmask(p, &sa, retval);
}
case OSF1_SIGRELSE_MASK:
{
struct sys_sigprocmask_args sa;
SCARG(&sa, how) = SIG_UNBLOCK;
SCARG(&sa, mask) = sigmask(signum);
return sys_sigprocmask(p, &sa, retval);
}
case OSF1_SIGIGNORE_MASK:
{
struct sys_sigaction_args sa_args;
struct sigaction *bsa, sa;
bsa = stackgap_alloc(&sg, sizeof(struct sigaction));
SCARG(&sa_args, signum) = signum;
SCARG(&sa_args, nsa) = bsa;
SCARG(&sa_args, osa) = NULL;
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if ((error = copyout(&sa, bsa, sizeof(sa))) != 0)
return error;
if ((error = sys_sigaction(p, &sa_args, retval)) != 0) {
DPRINTF(("sigignore: sigaction failed\n"));
return error;
}
return 0;
}
case OSF1_SIGPAUSE_MASK:
{
struct sys_sigsuspend_args sa;
SCARG(&sa, mask) = p->p_sigmask & ~sigmask(signum);
return sys_sigsuspend(p, &sa, retval);
}
default:
return ENOSYS;
}
}
int
osf1_sys_sigpending(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigpending_args *uap = v;
sigset_t bss;
osf1_sigset_t oss;
bss = p->p_siglist & p->p_sigmask;
osf1_cvt_sigset_from_native(&bss, &oss);
return copyout(&oss, SCARG(uap, mask), sizeof(oss));
}
int
osf1_sys_sigprocmask(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigprocmask_args *uap = v;
osf1_sigset_t oss;
sigset_t bss;
int error = 0;
if (SCARG(uap, oset) != NULL) {
/* Fix the return value first if needed */
osf1_cvt_sigset_from_native(&p->p_sigmask, &oss);
if ((error = copyout(&oss, SCARG(uap, oset), sizeof(oss))) != 0)
return error;
}
if (SCARG(uap, set) == NULL)
/* Just examine */
return 0;
if ((error = copyin(SCARG(uap, set), &oss, sizeof(oss))) != 0)
return error;
osf1_cvt_sigset_to_native(&oss, &bss);
(void) splsched(); /* XXXSMP */
switch (SCARG(uap, how)) {
case OSF1_SIG_BLOCK:
p->p_sigmask |= bss & ~sigcantmask;
break;
case OSF1_SIG_UNBLOCK:
p->p_sigmask &= ~bss;
break;
case OSF1_SIG_SETMASK:
p->p_sigmask = bss & ~sigcantmask;
break;
default:
error = EINVAL;
break;
}
(void) spl0();
return error;
}
int
osf1_sys_sigsuspend(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_sigsuspend_args *uap = v;
osf1_sigset_t oss;
sigset_t bss;
struct sys_sigsuspend_args sa;
int error;
if ((error = copyin(SCARG(uap, ss), &oss, sizeof(oss))) != 0)
return error;
osf1_cvt_sigset_to_native(&oss, &bss);
SCARG(&sa, mask) = bss;
return sys_sigsuspend(p, &sa, retval);
}
#endif
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