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authorskrll <skrll@NetBSD.org>2013-07-24 11:42:50 +0000
committerskrll <skrll@NetBSD.org>2013-07-24 11:42:50 +0000
commit2ff78d15d1b9c4a28b9d15bbce2cddae96062e07 (patch)
treee1cba887047806cc7528bb76e1c6db79b15ce31d /lib/libc/sys
parentcf599a172d93492e97d2e6405891c967e22383d9 (diff)
Clarify msgsz.
Diffstat (limited to 'lib/libc/sys')
-rw-r--r--lib/libc/sys/msgrcv.26
-rw-r--r--lib/libc/sys/msgsnd.26
2 files changed, 8 insertions, 4 deletions
diff --git a/lib/libc/sys/msgrcv.2 b/lib/libc/sys/msgrcv.2
index 7538eeb5168..7a15a5c62ae 100644
--- a/lib/libc/sys/msgrcv.2
+++ b/lib/libc/sys/msgrcv.2
@@ -1,4 +1,4 @@
-.\" $NetBSD: msgrcv.2,v 1.20 2012/05/15 11:37:01 reinoud Exp $
+.\" $NetBSD: msgrcv.2,v 1.21 2013/07/24 11:42:50 skrll Exp $
.\"
.\" Copyright (c) 1995 Frank van der Linden
.\" All rights reserved.
@@ -90,8 +90,10 @@ less than or equal to the absolute value of
will be received.
.El
.Pp
+The argument
.Fa msgsz
-specifies the maximum length of the requested message.
+specifies the size in bytes of
+.Va mtext .
If the received message has a length greater than
.Fa msgsz
it will be silently truncated if the
diff --git a/lib/libc/sys/msgsnd.2 b/lib/libc/sys/msgsnd.2
index 87621c08bc8..063965545aa 100644
--- a/lib/libc/sys/msgsnd.2
+++ b/lib/libc/sys/msgsnd.2
@@ -1,4 +1,4 @@
-.\" $NetBSD: msgsnd.2,v 1.18 2010/04/30 04:06:20 jruoho Exp $
+.\" $NetBSD: msgsnd.2,v 1.19 2013/07/24 11:42:50 skrll Exp $
.\"
.\" Copyright (c) 1995 Frank van der Linden
.\" All rights reserved.
@@ -69,7 +69,9 @@ be used for selecting messages (see
.Xr msgrcv 2 ) .
The
.Va mtext
-field is an array of bytes, with size up to the system limit
+field is an array of bytes of length
+.Fa msgsz ,
+with size up to the system limit
.Dv MSGMAX .
.Pp
If the number of bytes already on the message queue plus