Add include files to get prototype declarations, and fix bugs found.

[unix-history] / usr / src / lib / libc / compat-43 / sigcompat.c

/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)sigcompat.c 5.3 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/param.h>
#include <signal.h>

sigvec(signo, sv, osv)
       int signo;
       struct sigvec *sv, *osv;
{
       int ret;

       if (sv)
               sv->sv_flags ^= SV_INTERRUPT;   /* !SA_INTERRUPT */
       ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv);
       if (ret == 0 && osv)
               osv->sv_flags ^= SV_INTERRUPT;  /* !SA_INTERRUPT */
       return (ret);
}

sigsetmask(mask)
       int mask;
{
       int omask, n;

       n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
       if (n)
               return (n);
       return (omask);
}

sigblock(mask)
       int mask;
{
       int omask, n;

       n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
       if (n)
               return (n);
       return (omask);
}

sigpause(mask)
       int mask;
{
       return (sigsuspend((sigset_t *)&mask));
}