#ifndef lint
static const char rcsid[] =
"$Id: inet.c,v 1.9 2006/04/04 04:36:27 lindak Exp $";
#endif
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sysctl.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#ifdef INET6
#include <netinet/ip6.h>
#endif
#include <netinet/in_pcb.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp_var.h>
#include <netinet/igmp_var.h>
#include <netinet/ip_var.h>
#include <netinet/tcp.h>
#include <netinet/tcpip.h>
#include <netinet/tcp_seq.h>
#define TCPSTATES
#include <netinet/tcp_fsm.h>
#include <netinet/tcp_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <arpa/inet.h>
#include <err.h>
#include <errno.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include "netstat.h"
char *inetname (struct in_addr *);
void inetprint (struct in_addr *, int, char *, int);
#ifdef INET6
extern void inet6print (struct in6_addr *, int, char *, int);
static int udp_done, tcp_done;
#endif
#ifdef SRVCACHE
typedef struct __table_private table_t;
extern table_t *_nc_table_new(uint32_t n);
extern void _nc_table_free(table_t *tin);
extern void _nc_table_insert(table_t *t, const char *key, void *datum);
extern void *_nc_table_find(table_t *t, const char *key);
extern void _nc_table_delete(table_t *t, const char *key);
static table_t *_serv_cache = NULL;
static void
_serv_cache_open()
{
struct servent *s;
char *key, *name, *test;
if (_serv_cache != NULL) return;
_serv_cache = _nc_table_new(8192);
setservent(0);
while (NULL != (s = getservent()))
{
if (s->s_name == NULL) continue;
key = NULL;
asprintf(&key, "%hu/%s", (unsigned short)ntohs(s->s_port), s->s_proto);
name = strdup(s->s_name);
test = _nc_table_find(_serv_cache, key);
if (test == NULL) _nc_table_insert(_serv_cache, key, name);
free(key);
}
endservent();
}
void
_serv_cache_close()
{
_nc_table_free(_serv_cache);
_serv_cache = NULL;
}
struct servent *
_serv_cache_getservbyport(int port, char *proto)
{
static struct servent s;
char *key;
unsigned short p;
_serv_cache_open();
memset(&s, 0, sizeof(struct servent));
asprintf(&key, "%u/%s", port, (proto == NULL) ? "udp" : proto);
s.s_name = _nc_table_find(_serv_cache, key);
free(key);
if (s.s_name == NULL) return NULL;
p = port;
s.s_port = htons(p);
s.s_proto = proto;
return &s;
}
#endif SRVCACHE
void
protopr(uint32_t proto,
char *name, int af)
{
int istcp;
static int first = 1;
char *buf;
const char *mibvar;
struct xinpgen *xig, *oxig;
#if !TARGET_OS_EMBEDDED
struct xtcpcb64 *tp = NULL;
struct xinpcb64 *inp;
struct xsocket64 *so;
#else
struct tcpcb *tp = NULL;
struct inpcb *inp;
struct xsocket *so;
#endif
size_t len;
istcp = 0;
switch (proto) {
case IPPROTO_TCP:
#ifdef INET6
if (tcp_done != 0)
return;
else
tcp_done = 1;
#endif
istcp = 1;
#if !TARGET_OS_EMBEDDED
mibvar = "net.inet.tcp.pcblist64";
#else
mibvar = "net.inet.tcp.pcblist";
#endif
break;
case IPPROTO_UDP:
#ifdef INET6
if (udp_done != 0)
return;
else
udp_done = 1;
#endif
#if !TARGET_OS_EMBEDDED
mibvar = "net.inet.udp.pcblist64";
#else
mibvar = "net.inet.udp.pcblist";
#endif
break;
case IPPROTO_DIVERT:
#if !TARGET_OS_EMBEDDED
mibvar = "net.inet.divert.pcblist64";
#else
mibvar = "net.inet.divert.pcblist";
#endif
break;
default:
#if !TARGET_OS_EMBEDDED
mibvar = "net.inet.raw.pcblist64";
#else
mibvar = "net.inet.raw.pcblist";
#endif
break;
}
len = 0;
if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
if (errno != ENOENT)
warn("sysctl: %s", mibvar);
return;
}
if ((buf = malloc(len)) == 0) {
warn("malloc %lu bytes", (u_long)len);
return;
}
if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
warn("sysctl: %s", mibvar);
free(buf);
return;
}
if (len <= sizeof(struct xinpgen)) {
free(buf);
return;
}
oxig = xig = (struct xinpgen *)buf;
for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
xig->xig_len > sizeof(struct xinpgen);
xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
if (istcp) {
#if !TARGET_OS_EMBEDDED
tp = (struct xtcpcb64 *)xig;
inp = &tp->xt_inpcb;
so = &inp->xi_socket;
#else
tp = &((struct xtcpcb *)xig)->xt_tp;
inp = &((struct xtcpcb *)xig)->xt_inp;
so = &((struct xtcpcb *)xig)->xt_socket;
#endif
} else {
#if !TARGET_OS_EMBEDDED
inp = (struct xinpcb64 *)xig;
so = &inp->xi_socket;
#else
inp = &((struct xinpcb *)xig)->xi_inp;
so = &((struct xinpcb *)xig)->xi_socket;
#endif
}
if (so->xso_protocol != (int)proto)
continue;
if (inp->inp_gencnt > oxig->xig_gen)
continue;
if ((af == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
#ifdef INET6
|| (af == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
#endif
|| (af == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
#ifdef INET6
&& (inp->inp_vflag &
INP_IPV6) == 0
#endif
))
)
continue;
if (!aflag && istcp && tp->t_state <= TCPS_LISTEN)
continue;
if (Lflag && !so->so_qlimit)
continue;
if (first) {
if (!Lflag) {
printf("Active Internet connections");
if (aflag)
printf(" (including servers)");
} else
printf(
"Current listen queue sizes (qlen/incqlen/maxqlen)");
putchar('\n');
if (Aflag)
#if !TARGET_OS_EMBEDDED
printf("%-16.16s ", "Socket");
#else
printf("%-8.8s ", "Socket");
#endif
if (Lflag)
printf("%-14.14s %-22.22s\n",
"Listen", "Local Address");
else
printf((Aflag && !Wflag) ?
"%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
"%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
"Proto", "Recv-Q", "Send-Q",
"Local Address", "Foreign Address",
"(state)");
first = 0;
}
if (Aflag) {
if (istcp)
#if !TARGET_OS_EMBEDDED
printf("%16lx ", (u_long)inp->inp_ppcb);
#else
printf("%8lx ", (u_long)inp->inp_ppcb);
#endif
else
#if !TARGET_OS_EMBEDDED
printf("%16lx ", (u_long)so->so_pcb);
#else
printf("%8lx ", (u_long)so->so_pcb);
#endif
}
if (Lflag) {
char buf[15];
snprintf(buf, 15, "%d/%d/%d", so->so_qlen,
so->so_incqlen, so->so_qlimit);
printf("%-14.14s ", buf);
}
else {
const char *vchar;
#ifdef INET6
if ((inp->inp_vflag & INP_IPV6) != 0)
vchar = ((inp->inp_vflag & INP_IPV4) != 0)
? "46" : "6 ";
else
#endif
vchar = ((inp->inp_vflag & INP_IPV4) != 0)
? "4 " : " ";
printf("%-3.3s%-2.2s %6u %6u ", name, vchar,
so->so_rcv.sb_cc,
so->so_snd.sb_cc);
}
if (nflag) {
if (inp->inp_vflag & INP_IPV4) {
inetprint(&inp->inp_laddr, (int)inp->inp_lport,
name, 1);
if (!Lflag)
inetprint(&inp->inp_faddr,
(int)inp->inp_fport, name, 1);
}
#ifdef INET6
else if (inp->inp_vflag & INP_IPV6) {
inet6print(&inp->in6p_laddr,
(int)inp->inp_lport, name, 1);
if (!Lflag)
inet6print(&inp->in6p_faddr,
(int)inp->inp_fport, name, 1);
}
#endif
} else if (inp->inp_flags & INP_ANONPORT) {
if (inp->inp_vflag & INP_IPV4) {
inetprint(&inp->inp_laddr, (int)inp->inp_lport,
name, 1);
if (!Lflag)
inetprint(&inp->inp_faddr,
(int)inp->inp_fport, name, 0);
}
#ifdef INET6
else if (inp->inp_vflag & INP_IPV6) {
inet6print(&inp->in6p_laddr,
(int)inp->inp_lport, name, 1);
if (!Lflag)
inet6print(&inp->in6p_faddr,
(int)inp->inp_fport, name, 0);
}
#endif
} else {
if (inp->inp_vflag & INP_IPV4) {
inetprint(&inp->inp_laddr, (int)inp->inp_lport,
name, 0);
if (!Lflag)
inetprint(&inp->inp_faddr,
(int)inp->inp_fport, name,
inp->inp_lport !=
inp->inp_fport);
}
#ifdef INET6
else if (inp->inp_vflag & INP_IPV6) {
inet6print(&inp->in6p_laddr,
(int)inp->inp_lport, name, 0);
if (!Lflag)
inet6print(&inp->in6p_faddr,
(int)inp->inp_fport, name,
inp->inp_lport !=
inp->inp_fport);
}
#endif
}
if (istcp && !Lflag) {
if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
printf("%d", tp->t_state);
else {
printf("%s", tcpstates[tp->t_state]);
#if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
putchar('*');
#endif
}
}
putchar('\n');
}
if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
if (oxig->xig_count > xig->xig_count) {
printf("Some %s sockets may have been deleted.\n",
name);
} else if (oxig->xig_count < xig->xig_count) {
printf("Some %s sockets may have been created.\n",
name);
} else {
printf("Some %s sockets may have been created or deleted",
name);
}
}
free(buf);
}
void
tcp_stats(uint32_t off , char *name, int af )
{
static struct tcpstat ptcpstat;
struct tcpstat tcpstat;
size_t len = sizeof tcpstat;
if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len, 0, 0) < 0) {
warn("sysctl: net.inet.tcp.stats");
return;
}
#ifdef INET6
if (tcp_done != 0 && interval == 0)
return;
else
tcp_done = 1;
#endif
printf ("%s:\n", name);
#define TCPDIFF(f) (tcpstat.f - ptcpstat.f)
#define p(f, m) if (TCPDIFF(f) || sflag <= 1) \
printf(m, TCPDIFF(f), plural(TCPDIFF(f)))
#define p1a(f, m) if (TCPDIFF(f) || sflag <= 1) \
printf(m, TCPDIFF(f))
#define p2(f1, f2, m) if (TCPDIFF(f1) || TCPDIFF(f2) || sflag <= 1) \
printf(m, TCPDIFF(f1), plural(TCPDIFF(f1)), TCPDIFF(f2), plural(TCPDIFF(f2)))
#define p2a(f1, f2, m) if (TCPDIFF(f1) || TCPDIFF(f2) || sflag <= 1) \
printf(m, TCPDIFF(f1), plural(TCPDIFF(f1)), TCPDIFF(f2))
#define p3(f, m) if (TCPDIFF(f) || sflag <= 1) \
printf(m, TCPDIFF(f), plurales(TCPDIFF(f)))
p(tcps_sndtotal, "\t%u packet%s sent\n");
p2(tcps_sndpack,tcps_sndbyte,
"\t\t%u data packet%s (%u byte%s)\n");
p2(tcps_sndrexmitpack, tcps_sndrexmitbyte,
"\t\t%u data packet%s (%u byte%s) retransmitted\n");
p(tcps_mturesent, "\t\t%u resend%s initiated by MTU discovery\n");
p2a(tcps_sndacks, tcps_delack,
"\t\t%u ack-only packet%s (%u delayed)\n");
p(tcps_sndurg, "\t\t%u URG only packet%s\n");
p(tcps_sndprobe, "\t\t%u window probe packet%s\n");
p(tcps_sndwinup, "\t\t%u window update packet%s\n");
p(tcps_sndctrl, "\t\t%u control packet%s\n");
p(tcps_rcvtotal, "\t%u packet%s received\n");
p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%u ack%s (for %u byte%s)\n");
p(tcps_rcvdupack, "\t\t%u duplicate ack%s\n");
p(tcps_rcvacktoomuch, "\t\t%u ack%s for unsent data\n");
p2(tcps_rcvpack, tcps_rcvbyte,
"\t\t%u packet%s (%u byte%s) received in-sequence\n");
p2(tcps_rcvduppack, tcps_rcvdupbyte,
"\t\t%u completely duplicate packet%s (%u byte%s)\n");
p(tcps_pawsdrop, "\t\t%u old duplicate packet%s\n");
p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte,
"\t\t%u packet%s with some dup. data (%u byte%s duped)\n");
p2(tcps_rcvoopack, tcps_rcvoobyte,
"\t\t%u out-of-order packet%s (%u byte%s)\n");
p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin,
"\t\t%u packet%s (%u byte%s) of data after window\n");
p(tcps_rcvwinprobe, "\t\t%u window probe%s\n");
p(tcps_rcvwinupd, "\t\t%u window update packet%s\n");
p(tcps_rcvafterclose, "\t\t%u packet%s received after close\n");
p(tcps_badrst, "\t\t%u bad reset%s\n");
p(tcps_rcvbadsum, "\t\t%u discarded for bad checksum%s\n");
p(tcps_rcvbadoff, "\t\t%u discarded for bad header offset field%s\n");
p1a(tcps_rcvshort, "\t\t%u discarded because packet too short\n");
p(tcps_connattempt, "\t%u connection request%s\n");
p(tcps_accepts, "\t%u connection accept%s\n");
p(tcps_badsyn, "\t%u bad connection attempt%s\n");
p(tcps_listendrop, "\t%u listen queue overflow%s\n");
p(tcps_connects, "\t%u connection%s established (including accepts)\n");
p2(tcps_closed, tcps_drops,
"\t%u connection%s closed (including %u drop%s)\n");
p(tcps_cachedrtt, "\t\t%u connection%s updated cached RTT on close\n");
p(tcps_cachedrttvar,
"\t\t%u connection%s updated cached RTT variance on close\n");
p(tcps_cachedssthresh,
"\t\t%u connection%s updated cached ssthresh on close\n");
p(tcps_conndrops, "\t%u embryonic connection%s dropped\n");
p2(tcps_rttupdated, tcps_segstimed,
"\t%u segment%s updated rtt (of %u attempt%s)\n");
p(tcps_rexmttimeo, "\t%u retransmit timeout%s\n");
p(tcps_timeoutdrop, "\t\t%u connection%s dropped by rexmit timeout\n");
p(tcps_persisttimeo, "\t%u persist timeout%s\n");
p(tcps_persistdrop, "\t\t%u connection%s dropped by persist timeout\n");
p(tcps_keeptimeo, "\t%u keepalive timeout%s\n");
p(tcps_keepprobe, "\t\t%u keepalive probe%s sent\n");
p(tcps_keepdrops, "\t\t%u connection%s dropped by keepalive\n");
p(tcps_predack, "\t%u correct ACK header prediction%s\n");
p(tcps_preddat, "\t%u correct data packet header prediction%s\n");
#ifdef TCP_MAX_SACK
p(tcps_sack_recovery_episode, "\t%u SACK recovery episode%s\n");
p(tcps_sack_rexmits,
"\t%u segment rexmit%s in SACK recovery episodes\n");
p(tcps_sack_rexmit_bytes,
"\t%u byte rexmit%s in SACK recovery episodes\n");
p(tcps_sack_rcv_blocks,
"\t%u SACK option%s (SACK blocks) received\n");
p(tcps_sack_send_blocks, "\t%u SACK option%s (SACK blocks) sent\n");
p1a(tcps_sack_sboverflow, "\t%u SACK scoreboard overflow\n");
#endif
if (interval > 0)
bcopy(&tcpstat, &ptcpstat, len);
#undef TCPDIFF
#undef p
#undef p1a
#undef p2
#undef p2a
#undef p3
}
void
udp_stats(uint32_t off , char *name, int af )
{
static struct udpstat pudpstat;
struct udpstat udpstat;
size_t len = sizeof udpstat;
uint32_t delivered;
if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 0, 0) < 0) {
warn("sysctl: net.inet.udp.stats");
return;
}
#ifdef INET6
if (udp_done != 0 && interval == 0)
return;
else
udp_done = 1;
#endif
printf("%s:\n", name);
#define UDPDIFF(f) (udpstat.f - pudpstat.f)
#define p(f, m) if (UDPDIFF(f) || sflag <= 1) \
printf(m, UDPDIFF(f), plural(UDPDIFF(f)))
#define p1a(f, m) if (UDPDIFF(f) || sflag <= 1) \
printf(m, UDPDIFF(f))
p(udps_ipackets, "\t%u datagram%s received\n");
p1a(udps_hdrops, "\t%u with incomplete header\n");
p1a(udps_badlen, "\t%u with bad data length field\n");
p1a(udps_badsum, "\t%u with bad checksum\n");
p1a(udps_noport, "\t%u dropped due to no socket\n");
p(udps_noportbcast,
"\t%u broadcast/multicast datagram%s dropped due to no socket\n");
p1a(udps_fullsock, "\t%u dropped due to full socket buffers\n");
p1a(udpps_pcbhashmiss, "\t%u not for hashed pcb\n");
delivered = UDPDIFF(udps_ipackets) -
UDPDIFF(udps_hdrops) -
UDPDIFF(udps_badlen) -
UDPDIFF(udps_badsum) -
UDPDIFF(udps_noport) -
UDPDIFF(udps_noportbcast) -
UDPDIFF(udps_fullsock);
if (delivered || sflag <= 1)
printf("\t%u delivered\n", delivered);
p(udps_opackets, "\t%u datagram%s output\n");
if (interval > 0)
bcopy(&udpstat, &pudpstat, len);
#undef UDPDIFF
#undef p
#undef p1a
}
void
ip_stats(uint32_t off , char *name, int af )
{
static struct ipstat pipstat;
struct ipstat ipstat;
size_t len = sizeof ipstat;
if (sysctlbyname("net.inet.ip.stats", &ipstat, &len, 0, 0) < 0) {
warn("sysctl: net.inet.ip.stats");
return;
}
printf("%s:\n", name);
#define IPDIFF(f) (ipstat.f - pipstat.f)
#define p(f, m) if (IPDIFF(f) || sflag <= 1) \
printf(m, IPDIFF(f), plural(IPDIFF(f)))
#define p1a(f, m) if (IPDIFF(f) || sflag <= 1) \
printf(m, IPDIFF(f))
p(ips_total, "\t%u total packet%s received\n");
p(ips_badsum, "\t%u bad header checksum%s\n");
p1a(ips_toosmall, "\t%u with size smaller than minimum\n");
p1a(ips_tooshort, "\t%u with data size < data length\n");
p1a(ips_toolong, "\t%u with ip length > max ip packet size\n");
p1a(ips_badhlen, "\t%u with header length < data size\n");
p1a(ips_badlen, "\t%u with data length < header length\n");
p1a(ips_badoptions, "\t%u with bad options\n");
p1a(ips_badvers, "\t%u with incorrect version number\n");
p(ips_fragments, "\t%u fragment%s received\n");
p(ips_fragdropped, "\t%u fragment%s dropped (dup or out of space)\n");
p(ips_fragtimeout, "\t%u fragment%s dropped after timeout\n");
p(ips_reassembled, "\t%u packet%s reassembled ok\n");
p(ips_delivered, "\t%u packet%s for this host\n");
p(ips_noproto, "\t%u packet%s for unknown/unsupported protocol\n");
p(ips_forward, "\t%u packet%s forwarded");
p(ips_fastforward, " (%u packet%s fast forwarded)");
if (IPDIFF(ips_forward) || sflag <= 1)
putchar('\n');
p(ips_cantforward, "\t%u packet%s not forwardable\n");
p(ips_notmember,
"\t%u packet%s received for unknown multicast group\n");
p(ips_redirectsent, "\t%u redirect%s sent\n");
p(ips_localout, "\t%u packet%s sent from this host\n");
p(ips_rawout, "\t%u packet%s sent with fabricated ip header\n");
p(ips_odropped,
"\t%u output packet%s dropped due to no bufs, etc.\n");
p(ips_noroute, "\t%u output packet%s discarded due to no route\n");
p(ips_fragmented, "\t%u output datagram%s fragmented\n");
p(ips_ofragments, "\t%u fragment%s created\n");
p(ips_cantfrag, "\t%u datagram%s that can't be fragmented\n");
p(ips_nogif, "\t%u tunneling packet%s that can't find gif\n");
p(ips_badaddr, "\t%u datagram%s with bad address in header\n");
if (interval > 0)
bcopy(&ipstat, &pipstat, len);
#undef IPDIFF
#undef p
#undef p1a
}
static char *icmpnames[] = {
"echo reply",
"#1",
"#2",
"destination unreachable",
"source quench",
"routing redirect",
"#6",
"#7",
"echo",
"router advertisement",
"router solicitation",
"time exceeded",
"parameter problem",
"time stamp",
"time stamp reply",
"information request",
"information request reply",
"address mask request",
"address mask reply",
};
void
icmp_stats(uint32_t off , char *name, int af )
{
static struct icmpstat picmpstat;
struct icmpstat icmpstat;
int i, first;
int mib[4];
size_t len;
mib[0] = CTL_NET;
mib[1] = PF_INET;
mib[2] = IPPROTO_ICMP;
mib[3] = ICMPCTL_STATS;
len = sizeof icmpstat;
memset(&icmpstat, 0, len);
if (sysctl(mib, 4, &icmpstat, &len, (void *)0, 0) < 0)
return;
printf("%s:\n", name);
#define ICMPDIFF(f) (icmpstat.f - picmpstat.f)
#define p(f, m) if (ICMPDIFF(f) || sflag <= 1) \
printf(m, ICMPDIFF(f), plural(ICMPDIFF(f)))
#define p1a(f, m) if (ICMPDIFF(f) || sflag <= 1) \
printf(m, ICMPDIFF(f))
p(icps_error, "\t%u call%s to icmp_error\n");
p(icps_oldicmp,
"\t%u error%s not generated 'cuz old message was icmp\n");
for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
if (ICMPDIFF(icps_outhist[i]) != 0) {
if (first) {
printf("\tOutput histogram:\n");
first = 0;
}
printf("\t\t%s: %u\n", icmpnames[i],
ICMPDIFF(icps_outhist[i]));
}
p(icps_badcode, "\t%u message%s with bad code fields\n");
p(icps_tooshort, "\t%u message%s < minimum length\n");
p(icps_checksum, "\t%u bad checksum%s\n");
p(icps_badlen, "\t%u message%s with bad length\n");
p1a(icps_bmcastecho, "\t%u multicast echo requests ignored\n");
p1a(icps_bmcasttstamp, "\t%u multicast timestamp requests ignored\n");
for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
if (ICMPDIFF(icps_inhist[i]) != 0) {
if (first) {
printf("\tInput histogram:\n");
first = 0;
}
printf("\t\t%s: %u\n", icmpnames[i],
ICMPDIFF(icps_inhist[i]));
}
p(icps_reflect, "\t%u message response%s generated\n");
#undef ICMPDIFF
#undef p
#undef p1a
mib[3] = ICMPCTL_MASKREPL;
len = sizeof i;
if (sysctl(mib, 4, &i, &len, (void *)0, 0) < 0)
return;
printf("\tICMP address mask responses are %sabled\n",
i ? "en" : "dis");
if (interval > 0)
bcopy(&icmpstat, &picmpstat, sizeof (icmpstat));
}
void
igmp_stats(uint32_t off , char *name, int af )
{
static struct igmpstat pigmpstat;
struct igmpstat igmpstat;
size_t len = sizeof igmpstat;
if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, 0, 0) < 0) {
warn("sysctl: net.inet.igmp.stats");
return;
}
printf("%s:\n", name);
#define IGMPDIFF(f) (igmpstat.f - pigmpstat.f)
#define p(f, m) if (IGMPDIFF(f) || sflag <= 1) \
printf(m, IGMPDIFF(f), plural(IGMPDIFF(f)))
#define py(f, m) if (IGMPDIFF(f) || sflag <= 1) \
printf(m, IGMPDIFF(f), IGMPDIFF(f) != 1 ? "ies" : "y")
p(igps_rcv_total, "\t%u message%s received\n");
p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n");
p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n");
py(igps_rcv_queries, "\t%u membership quer%s received\n");
py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n");
p(igps_rcv_reports, "\t%u membership report%s received\n");
p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n");
p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n");
p(igps_snd_reports, "\t%u membership report%s sent\n");
if (interval > 0)
bcopy(&igmpstat, &pigmpstat, len);
#undef IGMPDIFF
#undef p
#undef py
}
void
inetprint(struct in_addr *in, int port, char *proto, int numeric_port)
{
struct servent *sp = 0;
char line[80], *cp;
int width;
if (Wflag)
sprintf(line, "%s.", inetname(in));
else
sprintf(line, "%.*s.", (Aflag && !numeric_port) ? 12 : 16, inetname(in));
cp = index(line, '\0');
if (!numeric_port && port)
#ifdef _SERVICE_CACHE_
sp = _serv_cache_getservbyport(port, proto);
#else
sp = getservbyport((int)port, proto);
#endif
if (sp || port == 0)
sprintf(cp, "%.15s ", sp ? sp->s_name : "*");
else
sprintf(cp, "%d ", ntohs((u_short)port));
width = (Aflag && !Wflag) ? 18 : 22;
if (Wflag)
printf("%-*s ", width, line);
else
printf("%-*.*s ", width, width, line);
}
char *
inetname(struct in_addr *inp)
{
register char *cp;
static char line[MAXHOSTNAMELEN];
struct hostent *hp;
struct netent *np;
cp = 0;
if (!nflag && inp->s_addr != INADDR_ANY) {
int net = inet_netof(*inp);
int lna = inet_lnaof(*inp);
if (lna == INADDR_ANY) {
np = getnetbyaddr(net, AF_INET);
if (np)
cp = np->n_name;
}
if (cp == 0) {
hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
if (hp) {
cp = hp->h_name;
}
}
}
if (inp->s_addr == INADDR_ANY)
strcpy(line, "*");
else if (cp) {
strncpy(line, cp, sizeof(line) - 1);
line[sizeof(line) - 1] = '\0';
} else {
inp->s_addr = ntohl(inp->s_addr);
#define C(x) ((u_int)((x) & 0xff))
sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));
}
return (line);
}