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Rename the DIAGNOSTICS section to RETURN VALUES and describe the

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return values a little more.  Specifically, mention that a return
of 0 from NgRecvData() and NgRecvMsg() means the socket has been
closed.

Suggested by: jkh
This commit is contained in:
Brian Somers 2001-08-24 21:39:27 +00:00
parent 2ee4dc6565
commit cb526d28ce
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=82297
1 changed files with 10 additions and 4 deletions
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14
lib/libnetgraph/netgraph.3
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@ -255,12 +255,18 @@ and
.Xr ng_socket 4
KLD modules must have been loaded via
.Xr kldload 8 .
.Sh DIAGNOSTICS
All functions except
.Sh RETURN VALUES
.Fn NgSetDebug
and
returns the previous debug setting.
.Fn NgSetErrLog
return -1 if there was an error and set errno accordingly.
has no return value.
All other functions return -1 if there was an error and set errno
accordingly.
A return value of zero from
.Fn NgRecvMsg
or
.Fn NgRecvData
indicates that the netgraph socket has been closed.
.Pp
For
.Fn NgSendAsciiMsg