.I imr_address
is the address of the local interface with which the system
should join the multicast group; if it is equal to
-.B INADDR_ANY
+.BR INADDR_ANY ,
an appropriate interface is chosen by the system.
.I imr_ifindex
is the interface index of the interface that should join/leave the
.TP
.BR IP_RECVTOS " (since Linux 2.2)"
.\" Precisely: 2.1.68
-If enabled the
+If enabled, the
.B IP_TOS
ancillary message is passed with incoming packets.
It contains a byte which specifies the Type of Service/Precedence
RFC\ 1122 for the IPv4 host requirements.
RFC\ 1812 for the IPv4 router requirements.
.\" FIXME autobind INADDR REUSEADDR
+.SH COLOPHON
+This page is part of release 3.64 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.