From 2a174308fef7b820bcda7a0bff9ee406254cef68 Mon Sep 17 00:00:00 2001 From: mpp Date: Thu, 30 Jan 1997 23:49:46 +0000 Subject: Update to reflect current include files. --- share/man/man4/bpf.4 | 19 ++++++++++--------- share/man/man4/inet.4 | 3 ++- share/man/man4/ip.4 | 20 ++++++++++---------- 3 files changed, 22 insertions(+), 20 deletions(-) (limited to 'share/man/man4') diff --git a/share/man/man4/bpf.4 b/share/man/man4/bpf.4 index 12648ff..5a05f6a 100644 --- a/share/man/man4/bpf.4 +++ b/share/man/man4/bpf.4 @@ -201,11 +201,11 @@ indicating no timeout. Returns the following structure of packet statistics: .Bd -literal struct bpf_stat { - u_int bs_recv; - u_int bs_drop; + u_int bs_recv; /* number of packets received */ + u_int bs_drop; /* number of packets dropped */ }; .Ed - +.Pp The fields are: .Bl -hang -offset indent .It Li bs_recv @@ -265,7 +265,7 @@ struct bpf_version { u_short bv_minor; }; .Ed - +.Pp The current version numbers are given by .Dv BPF_MAJOR_VERSION and @@ -281,10 +281,11 @@ The following structure is prepended to each packet returned by .Xr read 2 : .Bd -literal struct bpf_hdr { - struct timeval bh_tstamp; - u_long bh_caplen; - u_long bh_datalen; - u_short bh_hdrlen; + struct timeval bh_tstamp; /* time stamp */ + u_long bh_caplen; /* length of captured portion */ + u_long bh_datalen; /* original length of packet */ + u_short bh_hdrlen; /* length of bpf header (this struct + plus alignment padding */ }; .Ed .Pp @@ -365,7 +366,7 @@ struct bpf_insn { u_short code; u_char jt; u_char jf; - long k; + u_long k; }; .Ed diff --git a/share/man/man4/inet.4 b/share/man/man4/inet.4 index d25c14b..3b32c4f 100644 --- a/share/man/man4/inet.4 +++ b/share/man/man4/inet.4 @@ -70,7 +70,8 @@ Sockets bound to the Internet protocol family utilize the following addressing structure, .Bd -literal -offset indent struct sockaddr_in { - short sin_family; + u_char sin_len; + u_char sin_family; u_short sin_port; struct in_addr sin_addr; char sin_zero[8]; diff --git a/share/man/man4/ip.4 b/share/man/man4/ip.4 index 12ffbb2..467fcca 100644 --- a/share/man/man4/ip.4 +++ b/share/man/man4/ip.4 @@ -188,7 +188,7 @@ in order to control the scope of the multicasts: u_char ttl; /* range: 0 to 255, default = 1 */ setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl)); .Ed -.sp +.Pp Datagrams with a TTL of 1 are not forwarded beyond the local network. Multicast datagrams with a TTL of 0 will not be transmitted on any network, but may be delivered locally if the sending host belongs to the destination @@ -206,7 +206,7 @@ subsequent transmissions from a given socket: struct in_addr addr; setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF, &addr, sizeof(addr)); .Ed -.sp +.Pp where "addr" is the local .Tn IP address of the desired interface or @@ -231,7 +231,7 @@ over whether or not subsequent datagrams are looped back: u_char loop; /* 0 = disable, 1 = enable (default) */ setsockopt(s, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop)); .Ed -.sp +.Pp This option improves performance for applications that may have no more than one instance on a single host (such as a router demon), by eliminating @@ -253,17 +253,17 @@ option: struct ip_mreq mreq; setsockopt(s, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)); .Ed -.sp +.Pp where .Fa mreq is the following structure: .Bd -literal struct ip_mreq { - struct in_addr imr_multiaddr; /* multicast group to join */ - struct in_addr imr_interface; /* interface to join on */ + struct in_addr imr_multiaddr; /* IP multicast address of group */ + struct in_addr imr_interface; /* local IP address of interface */ } .Ed -.sp +.Pp .Dv imr_interface should be @@ -286,7 +286,7 @@ To drop a membership, use: struct ip_mreq mreq; setsockopt(s, IPPROTO_IP, IP_DROP_MEMBERSHIP, &mreq, sizeof(mreq)); .Ed -.sp +.Pp where .Fa mreq contains the same values as used to add the membership. @@ -349,7 +349,7 @@ type. int hincl = 1; /* 1 = on, 0 = off */ setsockopt(s, IPPROTO_IP, IP_HDRINCL, &hincl, sizeof(hincl)); .Ed -.sp +.Pp Unlike previous .Tn BSD releases, the program must set all @@ -360,7 +360,7 @@ ip->ip_hl = hlen >> 2; ip->ip_id = 0; /* 0 means kernel set appropriate value */ ip->ip_off = offset; .Ed -.sp .5 +.Pp If the header source address is set to .Dv INADDR_ANY, the kernel will choose an appropriate address. -- cgit v1.1