diff options
| -rw-r--r-- | lib/libc/sys/send.2 | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/lib/libc/sys/send.2 b/lib/libc/sys/send.2 index 6f6d7727b2cc..dd6406fc6832 100644 --- a/lib/libc/sys/send.2 +++ b/lib/libc/sys/send.2 @@ -28,7 +28,7 @@ .\" From: @(#)send.2 8.2 (Berkeley) 2/21/94 .\" $FreeBSD$ .\" -.Dd January 4, 2019 +.Dd April 27, 2020 .Dt SEND 2 .Os .Sh NAME @@ -69,18 +69,35 @@ The function may be used only when the socket is in a .Em connected -state, while +state. +The functions .Fn sendto , .Fn sendmsg and .Fn sendmmsg -may be used at any time. +may be used at any time if the socket is connectionless-mode. +If the socket is connection-mode, the protocol +must support implied connect (currently +.Xr tcp 4 +is the only protocol with support) or the socket must be in a +connected state before use. .Pp The address of the target is given by .Fa to with .Fa tolen -specifying its size. +specifying its size, or the equivalent +.Fa msg_name +and +.Fa msg_namelen +in +.Fa struct msghdr . +If the socket is in a connected state, the target address passed to +.Fn sendto , +.Fn sendmsg +or +.Fn sendmmsg +is ignored. The length of the message is given by .Fa len . If the message is too long to pass atomically through the @@ -195,6 +212,8 @@ An invalid descriptor was specified. The destination address is a broadcast address, and .Dv SO_BROADCAST has not been set on the socket. +.It Bq Er ENOTCONN +The socket is connection-mode but is not connected. .It Bq Er ENOTSOCK The argument .Fa s @@ -242,6 +261,7 @@ This typically means that the socket is not connected. .El .Sh SEE ALSO +.Xr connect 2 , .Xr fcntl 2 , .Xr getsockopt 2 , .Xr recv 2 , |