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/* ISC license. */
#include <unistd.h>
#include <signal.h>
#include <skalibs/types.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr.h>
#include <skalibs/sig.h>
#define USAGE "s6-pause [ -t ] [ -h ] [ -a ] [ -q ] [ -b ] [ -i ] [ -p signal,signal... ]"
#define dieusage() strerr_dieusage(100, USAGE)
#define PAUSE_MAX 64
int main (int argc, char const *const *argv)
{
PROG = "s6-pause" ;
unsigned int sigs[PAUSE_MAX] ;
size_t nsig = 0 ;
{
subgetopt l = SUBGETOPT_ZERO ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "thaqbip:", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 't' : if (nsig >= PAUSE_MAX) dieusage() ; sigs[nsig++] = SIGTERM ; break ;
case 'h' : if (nsig >= PAUSE_MAX) dieusage() ; sigs[nsig++] = SIGHUP ; break ;
case 'a' : if (nsig >= PAUSE_MAX) dieusage() ; sigs[nsig++] = SIGALRM ; break ;
case 'q' : if (nsig >= PAUSE_MAX) dieusage() ; sigs[nsig++] = SIGQUIT ; break ;
case 'b' : if (nsig >= PAUSE_MAX) dieusage() ; sigs[nsig++] = SIGABRT ; break ;
case 'i' : if (nsig >= PAUSE_MAX) dieusage() ; sigs[nsig++] = SIGINT ; break ;
case 'p' :
{
size_t n ;
if (!uint_scanlist(sigs + nsig, PAUSE_MAX - nsig, l.arg, &n)) dieusage() ;
nsig += n ;
break ;
}
default : dieusage() ;
}
}
argc -= l.ind ; argv += l.ind ;
}
while (nsig--) sig_ignore(sigs[nsig]) ;
pause() ;
return 0 ;
}
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