Date: Sat, 17 May 1997 23:34:19 -0700 (PDT) From: nw1@cs.wustl.edu To: freebsd-gnats-submit@FreeBSD.ORG Subject: misc/3615: Error in /usr/src/lib/libc/gen/sigsetops.c Message-ID: <199705180634.XAA13495@hub.freebsd.org> Resent-Message-ID: <199705180640.XAA13698@hub.freebsd.org>
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>Number: 3615
>Category: misc
>Synopsis: Error in /usr/src/lib/libc/gen/sigsetops.c
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat May 17 23:40:01 PDT 1997
>Last-Modified:
>Originator: Nanbor Wang
>Organization:
Washington University
>Release: 3.0-current
>Environment:
FreeBSD number.wustl.edu 3.0-CURRENT FreeBSD 3.0-CURRENT #0: Wed Feb 26 00:22:44 CST 1997 root@number.wustl.edu:/usr/src/sys/compile/EXTRA_SLOW_PENTIUM i386
>Description:
In file /usr/src/lib/libc/gen/sigsetops.c, the sigismember() is implemented as:
int
sigismember(set, signo)
const sigset_t *set;
int signo;
{
return ((*set & ~sigmask(signo)) != 0);
}
Which is not correct. (In /usr/include/signal.h, if _ANSI_SOURCE is defined,
it is defined as:
#define sigismember(set, signo) ((*(set) & (1 << ((signo) - 1))) != 0)
This is correct.)
>How-To-Repeat:
Try play with it and you know. I have compared it with Solaris's behaviors
and am absolutely sure this is a bug.
>Fix:
int
sigismember(set, signo)
const sigset_t *set;
int signo;
{
return ((*set & sigmask(signo)) != 0);
}
>Audit-Trail:
>Unformatted:
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