diff options
Diffstat (limited to 'manual/socket.texi')
| -rw-r--r-- | manual/socket.texi | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/manual/socket.texi b/manual/socket.texi index a6c44b77c3..cd7c0e7b12 100644 --- a/manual/socket.texi +++ b/manual/socket.texi @@ -779,16 +779,17 @@ Internet namespace. It has the following members: @table @code @item sa_family_t sin_family This identifies the address family or format of the socket address. -You should store the value @code{AF_INET} in this member. -@xref{Socket Addresses}. +You should store the value @code{AF_INET} in this member. The address +family is stored in host byte order. @xref{Socket Addresses}. @item struct in_addr sin_addr -This is the Internet address of the host machine. @xref{Host -Addresses}, and @ref{Host Names}, for how to get a value to store -here. +This is the IPv4 address. @xref{Host Addresses}, and @ref{Host +Names}, for how to get a value to store here. The IPv4 address is +stored in network byte order. @item unsigned short int sin_port -This is the port number. @xref{Ports}. +This is the port number. @xref{Ports}. The port number is stored in +network byte order. @end table @end deftp @@ -804,18 +805,36 @@ namespace. It has the following members: @item sa_family_t sin6_family This identifies the address family or format of the socket address. You should store the value of @code{AF_INET6} in this member. -@xref{Socket Addresses}. +@xref{Socket Addresses}. The address family is stored in host byte +order. @item struct in6_addr sin6_addr This is the IPv6 address of the host machine. @xref{Host Addresses}, and @ref{Host Names}, for how to get a value to store -here. +here. The address is stored in network byte order. @item uint32_t sin6_flowinfo -This is a currently unimplemented field. +@cindex flow label +@cindex IPv6 flow label +@cindex traffic class +@cindex IPv6 traffic class +This combines the IPv6 traffic class and flow label values, as found +in the IPv6 header. This field is stored in network byte order. Only +the 28 lower bits (of the number in network byte order) are used; the +remainig bits must be zero. The lower 20 bits are the flow label, and +bits 20 to 27 are the the traffic class. Typically, this field is +zero. + +@item uint32_t sin6_scope_id +@cindex scope ID +@cindex IPv6 scope ID +For link-local addresses, this identifies the interface on which this +address is valid. The scope ID is stored in host byte order. +Typically, this field is zero. @item uint16_t sin6_port -This is the port number. @xref{Ports}. +This is the port number. @xref{Ports}. The port number is stored in +network byte order. @end table @end deftp |