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| author | brian <brian@FreeBSD.org> | 2001-08-24 14:52:05 +0000 |
|---|---|---|
| committer | brian <brian@FreeBSD.org> | 2001-08-24 14:52:05 +0000 |
| commit | 94dfd084a9d9823da6cf6925d028933aac03ff07 (patch) | |
| tree | fd9ee866300aa6c83435e8748a83fa43bd341345 /lib/libnetgraph | |
| parent | 29c24377ac4c48709df9368bed272886f8f90ebd (diff) | |
| download | FreeBSD-src-94dfd084a9d9823da6cf6925d028933aac03ff07.zip FreeBSD-src-94dfd084a9d9823da6cf6925d028933aac03ff07.tar.gz | |
Explain what the return value from NgRecvMsg() and NgRecvData() means,
specifically that 0 means the socket has been closed.
Diffstat (limited to 'lib/libnetgraph')
| -rw-r--r-- | lib/libnetgraph/netgraph.3 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/libnetgraph/netgraph.3 b/lib/libnetgraph/netgraph.3 index feff469..bf2de91 100644 --- a/lib/libnetgraph/netgraph.3 +++ b/lib/libnetgraph/netgraph.3 @@ -170,6 +170,9 @@ is non-NULL, it must point to a buffer of at least bytes, which will be filled in (and NUL terminated) with the path to the node from which the message was received. .Pp +The length of the control message is returned. +A return value of zero indicates that the socket was closed. +.Pp .Fn NgRecvAsciiMsg works exactly like .Fn NgRecvMsg , @@ -206,6 +209,9 @@ is non-NULL, it must point to a buffer of at least bytes, which will be filled in (and NUL terminated) with the name of the hook on which the data was received. .Pp +The length of the packet is returned. +A return value of zero indicates that the socket was closed. +.Pp .Fn NgSetDebug and .Fn NgSetErrLog |
