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#include <signal.h>
#include "sig.h"
/**
* @file sig.c
* @authors djb, jmh
* @ref qmail
* @brief signal handling functions
*/
void sig_alarmblock()
{
sig_block(SIGALRM);
}
void sig_alarmunblock()
{
sig_unblock(SIGALRM);
}
void sig_alarmcatch(void (*f)(int))
{
sig_catch(SIGALRM,f);
}
void sig_alarmdefault()
{
sig_catch(SIGALRM,SIG_DFL);
}
int sig_alarm = SIGALRM;
void sig_block(int sig)
{
sigset_t ss;
sigemptyset(&ss);
sigaddset(&ss,sig);
sigprocmask(SIG_BLOCK,&ss,(sigset_t *)0);
}
void sig_unblock(int sig)
{
sigset_t ss;
sigemptyset(&ss);
sigaddset(&ss,sig);
sigprocmask(SIG_UNBLOCK,&ss,(sigset_t *)0);
}
void sig_blocknone()
{
sigset_t ss;
sigemptyset(&ss);
sigprocmask(SIG_SETMASK,&ss,(sigset_t *)0);
}
void sig_catch(int sig,void (*f)(int))
{
struct sigaction sa;
sa.sa_handler = f;
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
sigaction(sig,&sa,(struct sigaction *)0);
}
void sig_pause()
{
sigset_t ss;
sigemptyset(&ss);
sigsuspend(&ss);
}
void sig_pipeignore()
{
sig_catch(SIGPIPE,SIG_IGN);
}
void sig_pipedefault()
{
sig_catch(SIGPIPE,SIG_DFL);
}
int sig_pipe = SIGPIPE;
void sig_childblock()
{
sig_block(SIGCHLD);
}
void sig_childunblock()
{
sig_unblock(SIGCHLD);
}
void sig_childcatch(void (*f)(int))
{
sig_catch(SIGCHLD,f);
}
void sig_childdefault()
{
sig_catch(SIGCHLD,SIG_DFL);
}
int sig_child = SIGCHLD;
void sig_hangupblock()
{
sig_block(SIGHUP);
}
void sig_hangupunblock()
{
sig_unblock(SIGHUP);
}
void sig_hangupcatch(void (*f)(int))
{
sig_catch(SIGHUP,f);
}
void sig_hangupdefault()
{
sig_catch(SIGHUP,SIG_DFL);
}
int sig_hangup = SIGHUP;
void sig_termblock()
{
sig_block(SIGTERM);
}
void sig_termunblock()
{
sig_unblock(SIGTERM);
}
void sig_termcatch( void (*f)(int))
{
sig_catch(SIGTERM,f);
}
void sig_termdefault()
{
sig_catch(SIGTERM,SIG_DFL);
}
int sig_term = SIGTERM;
void sig_bugcatch(void (*f)(int))
{
sig_catch(SIGILL,f);
sig_catch(SIGABRT,f);
sig_catch(SIGFPE,f);
sig_catch(SIGBUS,f);
sig_catch(SIGSEGV,f);
#ifdef SIGSYS
sig_catch(SIGSYS,f);
#endif
#ifdef SIGEMT
sig_catch(SIGEMT,f);
#endif
}
void (*sig_defaulthandler)(int) = SIG_DFL;
void sig_miscignore()
{
sig_catch(SIGVTALRM,SIG_IGN);
sig_catch(SIGPROF,SIG_IGN);
sig_catch(SIGQUIT,SIG_IGN);
sig_catch(SIGINT,SIG_IGN);
sig_catch(SIGHUP,SIG_IGN);
#ifdef SIGXCPU
sig_catch(SIGXCPU,SIG_IGN);
#endif
#ifdef SIGXFSZ
sig_catch(SIGXFSZ,SIG_IGN);
#endif
}
void (*sig_ignorehandler)() = SIG_IGN;
int sig_cont = SIGCONT;
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