lib/39000: sigpending doen't modify its set argument

[jkb%systella.fr@localhost]

>Number:         39000
>Category:       lib
>Synopsis:       sigpending doen't modify its set argument
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jun 20 15:00:00 +0000 2008
>Originator:     BERTRAND Joël
>Release:        4.0
>Organization:
>Environment:
NetBSD riemann 4.0 NetBSD 4.0 (GENERIC.MP) #0: Sun Dec 16 02:23:20 PST 2007  
builds@wb29:/home/builds/ab/netbsd-4-0-RELEASE/sparc/200712160005Z-obj/home/builds/ab/netbsd-4-0-RELEASE/src/sys/arch/sparc/compile/GENERIC.MP
 sparc
>Description:
sigpending doesn't work. "set" argument is not modified when signal is caught.
>How-To-Repeat:
Try to build a simple program with :

          while(sigismember(&set, SIGUSR1) == 0)
            {
                if (sigpending(&set) != 0)
                {
                    exit(0);
                }
            }

Run this code, and send SIGUSR1. 'set' variable is never modified.
>Fix: