/*
* Software available to all and sundry without limitations
* but without warranty of fitness for any purpose whatever.
*
* Licensed for any use, including redistribution in source
* and binary forms, with or without modifications, subject
* the following agreement:
*
* Licensee agrees to indemnify licensor, and distributor, for
* the full amount of any any claim made by the licensee against
* the licensor or distributor, for any action that results from
* any use or redistribution of this software, plus any costs
* incurred by licensor or distributor resulting from that claim.
*
* This licence must be retained with the software.
*/
#include <sys/types.h>
#include <signal.h>
#include <string.h>
/*
* signalnext()
*
* Returns the next signal number after the one given.
* Giving 0 as 'sig' requests the lowest available signal number.
*
* Returns:
* -1 on error (invalid 'sig' arg)
* 0 when there is no next.
* otherwise the next greater implemented signal number after 'sig'
*/
int
signalnext(int sig)
{
if (sig < 0 || sig >= NSIG || (sig > 0 && sys_signame[sig] == NULL))
return -1;
while (++sig < NSIG)
if (sys_signame[sig] != NULL)
return sig;
