136 lines
2.0 KiB
C
136 lines
2.0 KiB
C
/* $NetBSD: syssignal.c,v 1.1.1.1 2000/03/29 12:38:50 simonb Exp $ */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <signal.h>
|
|
|
|
#include "ntp_syslog.h"
|
|
#include "ntp_stdlib.h"
|
|
|
|
#ifdef HAVE_SIGACTION
|
|
|
|
void
|
|
signal_no_reset(
|
|
#if defined(__STDC__) || defined(HAVE_STDARG_H)
|
|
int sig,
|
|
void (*func) (int)
|
|
#else
|
|
sig, func
|
|
#endif
|
|
)
|
|
#if defined(__STDC__) || defined(HAVE_STDARG_H)
|
|
#else
|
|
int sig;
|
|
void (*func) P((int));
|
|
#endif
|
|
{
|
|
int n;
|
|
struct sigaction vec;
|
|
|
|
vec.sa_handler = func;
|
|
sigemptyset(&vec.sa_mask);
|
|
#if 0
|
|
#ifdef SA_RESTART
|
|
vec.sa_flags = SA_RESTART;
|
|
#else
|
|
vec.sa_flags = 0;
|
|
#endif
|
|
#else
|
|
vec.sa_flags = 0;
|
|
#endif
|
|
|
|
#ifdef SA_RESTART
|
|
/* Added for PPS clocks on Solaris 7 which get EINTR errors */
|
|
# ifdef SIGPOLL
|
|
if (sig == SIGPOLL) vec.sa_flags = SA_RESTART;
|
|
# endif
|
|
# ifdef SIGIO
|
|
if (sig == SIGIO) vec.sa_flags = SA_RESTART;
|
|
# endif
|
|
#endif
|
|
|
|
while (1)
|
|
{
|
|
struct sigaction ovec;
|
|
|
|
n = sigaction(sig, &vec, &ovec);
|
|
if (n == -1 && errno == EINTR) continue;
|
|
if (ovec.sa_flags
|
|
#ifdef SA_RESTART
|
|
&& ovec.sa_flags != SA_RESTART
|
|
#endif
|
|
)
|
|
msyslog(LOG_DEBUG, "signal_no_reset: signal %d had flags %x",
|
|
sig, ovec.sa_flags);
|
|
break;
|
|
}
|
|
if (n == -1) {
|
|
perror("sigaction");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
#elif HAVE_SIGVEC
|
|
|
|
void
|
|
signal_no_reset(
|
|
int sig,
|
|
RETSIGTYPE (*func) (int)
|
|
)
|
|
{
|
|
struct sigvec sv;
|
|
int n;
|
|
|
|
bzero((char *) &sv, sizeof(sv));
|
|
sv.sv_handler = func;
|
|
n = sigvec(sig, &sv, (struct sigvec *)NULL);
|
|
if (n == -1) {
|
|
perror("sigvec");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
#elif HAVE_SIGSET
|
|
|
|
void
|
|
signal_no_reset(
|
|
int sig,
|
|
RETSIGTYPE (*func) (int)
|
|
)
|
|
{
|
|
int n;
|
|
|
|
n = sigset(sig, func);
|
|
if (n == -1) {
|
|
perror("sigset");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
#else
|
|
|
|
/* Beware! This implementation resets the signal to SIG_DFL */
|
|
void
|
|
signal_no_reset(
|
|
int sig,
|
|
RETSIGTYPE (*func) (int)
|
|
)
|
|
{
|
|
#ifdef SIG_ERR
|
|
if (SIG_ERR == signal(sig, func)) {
|
|
#else
|
|
int n;
|
|
n = signal(sig, func);
|
|
if (n == -1) {
|
|
#endif
|
|
perror("signal");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
#endif
|