diff options
Diffstat (limited to 'lib/libc/sys/recv.2')
| -rw-r--r-- | lib/libc/sys/recv.2 | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/lib/libc/sys/recv.2 b/lib/libc/sys/recv.2 index 9d85d2b..a2ea33a 100644 --- a/lib/libc/sys/recv.2 +++ b/lib/libc/sys/recv.2 @@ -65,8 +65,10 @@ If .Fa from is non-nil, and the socket is not connection-oriented, the source address of the message is filled in. -.Fa Fromlen -is a value-result parameter, initialized to the size of +The +.Fa fromlen +argument +is a value-result argument, initialized to the size of the buffer associated with .Fa from , and modified on return to indicate the actual size of the @@ -82,7 +84,7 @@ and is identical to .Fn recvfrom with a nil .Fa from -parameter. +argument. As it is redundant, it may not be supported in future releases. .Pp All three routines return the length of the message on successful @@ -148,7 +150,7 @@ The .Fn recvmsg system call uses a .Fa msghdr -structure to minimize the number of directly supplied parameters. +structure to minimize the number of directly supplied arguments. This structure has the following form, as defined in .Ao Pa sys/socket.h Ac : .Pp @@ -171,12 +173,16 @@ and specify the destination address if the socket is unconnected; .Fa msg_name may be given as a null pointer if no names are desired or required. -.Fa Msg_iov +The +.Fa msg_iov and .Fa msg_iovlen +arguments describe scatter gather locations, as discussed in .Xr read 2 . -.Fa Msg_control , +The +.Fa msg_control +argument, which has length .Fa msg_controllen , points to a buffer for other protocol control related messages |
