diff options
Diffstat (limited to 'usr.bin/netstat/if.c')
| -rw-r--r-- | usr.bin/netstat/if.c | 92 |
1 files changed, 90 insertions, 2 deletions
diff --git a/usr.bin/netstat/if.c b/usr.bin/netstat/if.c index 8e75e41c7c1e..e7942115dad2 100644 --- a/usr.bin/netstat/if.c +++ b/usr.bin/netstat/if.c @@ -34,7 +34,7 @@ #ifndef lint /* From: static char sccsid[] = "@(#)if.c 5.15 (Berkeley) 3/1/91"; */ static const char if_c_rcsid[] = - "$Id: if.c,v 1.3 1994/02/21 11:35:23 rgrimes Exp $"; + "$Id: if.c,v 1.4 1994/05/17 21:10:14 jkh Exp $"; #endif /* not lint */ #include <sys/types.h> @@ -61,6 +61,7 @@ static const char if_c_rcsid[] = #define YES 1 #define NO 0 +extern int aflag; extern int tflag; extern int dflag; extern int nflag; @@ -70,6 +71,21 @@ extern char *routename(), *netname(), *ns_phost(); char *index(); /* + * Return a printable string representation of an Ethernet address. + */ +char *etherprint(enaddr) + char enaddr[6]; +{ + static char string[18]; + unsigned char *en = (unsigned char *)enaddr; + + sprintf(string, "%02x:%02x:%02x:%02x:%02x:%02x", + en[0], en[1], en[2], en[3], en[4], en[5] ); + string[17] = '\0'; + return(string); +} + +/* * Print a description of the network interfaces. */ intpr(interval, ifnetaddr) @@ -87,7 +103,7 @@ intpr(interval, ifnetaddr) struct iso_ifaddr iso; #endif } ifaddr; - off_t ifaddraddr; + off_t ifaddraddr, ifaddrfound, ifnetfound; struct sockaddr *sa; char name[16]; @@ -110,12 +126,14 @@ intpr(interval, ifnetaddr) printf(" %s", "Drop"); putchar('\n'); ifaddraddr = 0; + ifnetfound = 0; while (ifnetaddr || ifaddraddr) { struct sockaddr_in *sin; register char *cp; int n, m; struct in_addr inet_makeaddr(); + ifnetfound = ifnetaddr; if (ifaddraddr == 0) { kvm_read(ifnetaddr, (char *)&ifnet, sizeof ifnet); kvm_read((off_t)ifnet.if_name, name, 16); @@ -132,6 +150,7 @@ intpr(interval, ifnetaddr) ifaddraddr = (off_t)ifnet.if_addrlist; } printf("%-5.5s %-5d ", name, ifnet.if_mtu); + ifaddrfound = ifaddraddr; if (ifaddraddr == 0) { printf("%-11.11s ", "none"); printf("%-15.15s ", "none"); @@ -213,6 +232,75 @@ intpr(interval, ifnetaddr) if (dflag) printf(" %3d", ifnet.if_snd.ifq_drops); putchar('\n'); + + /*XXX this needs work for bsdi */ + if (aflag && ifaddrfound) { + /* + * print any internet multicast addresses + */ + switch (sa->sa_family) { + case AF_INET: + { + off_t multiaddr; + struct in_multi inm; + + multiaddr = (off_t)ifaddr.in.ia_multiaddrs; + while (multiaddr != 0) { + kvm_read(multiaddr, (char *)&inm, + sizeof inm); + multiaddr = (off_t)inm.inm_next; + printf("%23s %-19.19s\n", "", + routename(inm.inm_addr.s_addr)); + } + break; + } + default: + break; + } + } +#ifdef notyet + if (aflag && ifaddraddr == 0) { + /* + * print link-level addresses + * (Is there a better way to determine + * the type of network??) + */ + if (strncmp(name, "qe", 2) == 0 || /* Ethernet */ + strncmp(name, "de", 2) == 0 || + strncmp(name, "ex", 2) == 0 || + strncmp(name, "il", 2) == 0 || + strncmp(name, "le", 2) == 0 || + strncmp(name, "se", 2) == 0 || + strncmp(name, "ie", 2) == 0) { + strncmp(name, "we", 2) == 0) { + strncmp(name, "el", 2) == 0) { + /* "ec", the 3Com interface for Suns, is not */ + /* included, although it does handle multicast, */ + /* because it does not filter specific ethernet */ + /* multicast addresses, but just accepts all. */ + off_t multiaddr; + struct arpcom ac; + struct ether_multi enm; + + kvm_read(ifnetfound, (char *)&ac, sizeof ac); + printf("%23s %s\n", "", + etherprint(&ac.ac_enaddr)); + multiaddr = (off_t)ac.ac_multiaddrs; + while (multiaddr != 0) { + kvm_read(multiaddr, (char *)&enm, + sizeof enm); + multiaddr = (off_t)enm.enm_next; + printf("%23s %s", "", + etherprint(&enm.enm_addrlo)); + if (bcmp(&enm.enm_addrlo, + &enm.enm_addrhi, 6) != 0) + printf(" to %s", + etherprint(&enm.enm_addrhi)); + printf("\n"); + } + } + } +#endif } } |