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#include <signal.h>
#include "sig.h"
#include "hassgact.h"
#include "hassgprm.h"
/* tnx to Chris Torek for some improvements in previous versions */
static int flagcont;
static void sigcont() { flagcont = 1; }
void sig_dfl(sig)
int sig;
{
#ifdef HASSIGPROCMASK
sigset_t ssorig;
sigset_t ssnew;
#else
int maskorig;
int masknew;
#endif
#ifdef HASSIGACTION
struct sigaction saorig;
struct sigaction sanew;
#else
struct sigvec svorig;
struct sigvec svnew;
#endif
if (sig == SIGCONT) return;
#ifdef HASSIGPROCMASK
sigfillset(&ssnew);
sigprocmask(SIG_SETMASK,&ssnew,&ssorig);
#else
masknew = ~0;
maskorig = sigsetmask(masknew);
#endif
#ifdef HASSIGACTION
sanew.sa_handler = SIG_DFL;
sanew.sa_flags = 0;
sigemptyset(&sanew.sa_mask);
sigaction(sig,&sanew,&saorig);
sanew.sa_handler = sigcont;
sigaction(SIGCONT,&sanew,(struct sigaction *) 0);
#else
svnew.sv_handler = SIG_DFL;
svnew.sv_flags = 0;
svnew.sv_mask = 0;
sigvec(sig,&svnew,&svorig);
svnew.sv_handler = sigcont;
sigvec(SIGCONT,&svnew,(struct sigvec *) 0);
#endif
flagcont = 0;
if (kill(getpid(),sig) == 0) {
#ifdef HASSIGPROCMASK
sigdelset(&ssnew,sig);
sigdelset(&ssnew,SIGCONT);
while (!flagcont)
sigsuspend(&ssnew);
#else
masknew &= ~(1 << (sig - 1));
masknew &= ~(1 << (SIGCONT - 1));
while (!flagcont)
sigpause(masknew);
#endif
}
#ifdef HASSIGACTION
sigaction(sig,&saorig,(struct sigaction *) 0);
#else
sigvec(sig,&svorig,(struct sigvec *) 0);
#endif
#ifdef HASSIGPROCMASK
sigprocmask(SIG_SETMASK,&ssorig,(sigset_t *) 0);
#else
sigsetmask(maskorig);
#endif
}
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