Date: Sun, 14 Nov 2010 15:25:01 -0800 From: Garrett Cooper <yanegomi@gmail.com> To: freebsd-hackers@freebsd.org Subject: [PATCH] More explicit return codes for sigismember(3) Message-ID: <AANLkTi=USOfKgYEUR4BQrCrjz6tFKVAod2E%2BgS%2BwC2Xu@mail.gmail.com>
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[-- Attachment #1 --]
Hi,
I found this change kicking around my tree from a while back. It
brings the manpage for sigismember(3) more in line with the POSIX
definition [1] in the RETURN CODES section by explicitly noting that
sigismember(3) returns 0 if a signal is valid and not a part of the
set passed in.
If someone could review and commit the change, it would be much appreciated.
Thanks!
-Garrett
[1] http://www.opengroup.org/onlinepubs/009695399/functions/sigismember.html
(SUS Issue 6 -- but the wording for the manpage is the same in SUS
Issue 7).
[-- Attachment #2 --]
Index: lib/libc/gen/sigsetops.3
===================================================================
--- lib/libc/gen/sigsetops.3 (revision 215310)
+++ lib/libc/gen/sigsetops.3 (working copy)
@@ -92,8 +92,11 @@
The
.Fn sigismember
function returns 1
-if the signal is a member of the set,
-0 otherwise.
+if the signal is a member of the set, or 0 if it is not.
+Otherwise, it returns \-1 and the global variable
+.Va errno
+is set to indicate the reason.
+.Bl
The other functions return 0 upon success.
A \-1 return value
indicates an error occurred and the global variable
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