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(IP_MULTICAST_TTL, IP_MULTICAST_LOOP, IP_MULTICAST_IP, IP_ADD_MEMBERSHIP, IP_DROP_MEMBERSHIP): New IP layer socket options.

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Thomas Bushnell, BSG 1995-08-08 16:14:02 +00:00
parent a88363fbc7
commit 3de5ea654c
1 changed files with 5 additions and 0 deletions
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5
inet/netinet/in.h
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@ -166,6 +166,11 @@ struct sockaddr_in
#define IP_RECVRETOPTS 6 /* bool; Receive IP options for response. */
#define IP_RECVDSTADDR 7 /* bool; Receive IP dst addr w/datagram. */
#define IP_RETOPTS 8 /* ip_opts; Set/get IP per-packet options. */
#define IP_MULTICAST_TTL 9 /* int; TTL for multicast packets */
#define IP_MULTICAST_LOOP 10 /* bool; Use loopback for multicast */
#define IP_MULTICAST_IF 11 /* not used; intended to specify interface */
#define IP_ADD_MEMBERSHIP 12 /* int; join multicast group */
#define IP_DROP_MEMBERSHIP 13 /* int; leave multicast group */
/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
The `ip_dst' field is used for the first-hop gateway when using a