21c21
< * $FreeBSD: head/contrib/tcpdump/print-icmp.c 66644 2000-10-05 02:49:49Z kris $
---
> * $FreeBSD: head/contrib/tcpdump/print-icmp.c 75118 2001-04-03 07:50:46Z fenner $
26c26
< "@(#) $Header: /tcpdump/master/tcpdump/print-icmp.c,v 1.43 1999/11/22 04:28:21 fenner Exp $ (LBL)";
---
> "@(#) $Header: /tcpdump/master/tcpdump/print-icmp.c,v 1.57 2000/10/10 05:03:32 guy Exp $ (LBL)";
37d36
< #if __STDC__
40,41d38
< #endif
< #include <net/if.h>
44,51d40
< #include <net/ethernet.h>
< #include <netinet/in_systm.h>
< #include <netinet/ip.h>
< #include <netinet/ip_icmp.h>
< #include <netinet/ip_var.h>
< #include <netinet/udp.h>
< #include <netinet/udp_var.h>
< #include <netinet/tcp.h>
54a44
> #include <netdb.h> /* for MAXHOSTNAMELEN on some platforms */
59a50,169
> #include "ip.h"
> #include "udp.h"
>
> /*
> * Interface Control Message Protocol Definitions.
> * Per RFC 792, September 1981.
> */
>
> /*
> * Structure of an icmp header.
> */
> struct icmp {
> u_int8_t icmp_type; /* type of message, see below */
> u_int8_t icmp_code; /* type sub code */
> u_int16_t icmp_cksum; /* ones complement cksum of struct */
> union {
> u_int8_t ih_pptr; /* ICMP_PARAMPROB */
> struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
> struct ih_idseq {
> u_int16_t icd_id;
> u_int16_t icd_seq;
> } ih_idseq;
> u_int32_t ih_void;
>
> /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
> struct ih_pmtu {
> u_int16_t ipm_void;
> u_int16_t ipm_nextmtu;
> } ih_pmtu;
> } icmp_hun;
> #define icmp_pptr icmp_hun.ih_pptr
> #define icmp_gwaddr icmp_hun.ih_gwaddr
> #define icmp_id icmp_hun.ih_idseq.icd_id
> #define icmp_seq icmp_hun.ih_idseq.icd_seq
> #define icmp_void icmp_hun.ih_void
> #define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
> #define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
> union {
> struct id_ts {
> u_int32_t its_otime;
> u_int32_t its_rtime;
> u_int32_t its_ttime;
> } id_ts;
> struct id_ip {
> struct ip idi_ip;
> /* options and then 64 bits of data */
> } id_ip;
> u_int32_t id_mask;
> u_int8_t id_data[1];
> } icmp_dun;
> #define icmp_otime icmp_dun.id_ts.its_otime
> #define icmp_rtime icmp_dun.id_ts.its_rtime
> #define icmp_ttime icmp_dun.id_ts.its_ttime
> #define icmp_ip icmp_dun.id_ip.idi_ip
> #define icmp_mask icmp_dun.id_mask
> #define icmp_data icmp_dun.id_data
> };
>
> /*
> * Lower bounds on packet lengths for various types.
> * For the error advice packets must first insure that the
> * packet is large enought to contain the returned ip header.
> * Only then can we do the check to see if 64 bits of packet
> * data have been returned, since we need to check the returned
> * ip header length.
> */
> #define ICMP_MINLEN 8 /* abs minimum */
> #define ICMP_TSLEN (8 + 3 * sizeof (u_int32_t)) /* timestamp */
> #define ICMP_MASKLEN 12 /* address mask */
> #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
> #define ICMP_ADVLEN(p) (8 + (IP_HL(&(p)->icmp_ip) << 2) + 8)
> /* N.B.: must separately check that ip_hl >= 5 */
>
> /*
> * Definition of type and code field values.
> */
> #define ICMP_ECHOREPLY 0 /* echo reply */
> #define ICMP_UNREACH 3 /* dest unreachable, codes: */
> #define ICMP_UNREACH_NET 0 /* bad net */
> #define ICMP_UNREACH_HOST 1 /* bad host */
> #define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
> #define ICMP_UNREACH_PORT 3 /* bad port */
> #define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
> #define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
> #define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
> #define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
> #define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
> #define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
> #define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
> #define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
> #define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
> #define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
> #define ICMP_REDIRECT 5 /* shorter route, codes: */
> #define ICMP_REDIRECT_NET 0 /* for network */
> #define ICMP_REDIRECT_HOST 1 /* for host */
> #define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
> #define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
> #define ICMP_ECHO 8 /* echo service */
> #define ICMP_ROUTERADVERT 9 /* router advertisement */
> #define ICMP_ROUTERSOLICIT 10 /* router solicitation */
> #define ICMP_TIMXCEED 11 /* time exceeded, code: */
> #define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
> #define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
> #define ICMP_PARAMPROB 12 /* ip header bad */
> #define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
> #define ICMP_TSTAMP 13 /* timestamp request */
> #define ICMP_TSTAMPREPLY 14 /* timestamp reply */
> #define ICMP_IREQ 15 /* information request */
> #define ICMP_IREQREPLY 16 /* information reply */
> #define ICMP_MASKREQ 17 /* address mask request */
> #define ICMP_MASKREPLY 18 /* address mask reply */
>
> #define ICMP_MAXTYPE 18
>
> #define ICMP_INFOTYPE(type) \
> ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
> (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
> (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
> (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
> (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
94,101d203
< /* rfc1256 */
< #ifndef ICMP_ROUTERADVERT
< #define ICMP_ROUTERADVERT 9 /* router advertisement */
< #endif
< #ifndef ICMP_ROUTERSOLICIT
< #define ICMP_ROUTERSOLICIT 10 /* router solicitation */
< #endif
<
154,155c256,257
< short unused;
< short nexthopmtu;
---
> u_int16_t unused;
> u_int16_t nexthopmtu;
160,162c262,264
< u_char ird_addrnum;
< u_char ird_addrsiz;
< u_short ird_lifetime;
---
> u_int8_t ird_addrnum;
> u_int8_t ird_addrsiz;
> u_int16_t ird_lifetime;
201,203c303,306
< (void)snprintf(buf, sizeof(buf), "%s protocol %d unreachable",
< ipaddr_string(&dp->icmp_ip.ip_dst),
< dp->icmp_ip.ip_p);
---
> (void)snprintf(buf, sizeof(buf),
> "%s protocol %d unreachable",
> ipaddr_string(&dp->icmp_ip.ip_dst),
> dp->icmp_ip.ip_p);
209c312
< hlen = oip->ip_hl * 4;
---
> hlen = IP_HL(oip) * 4;
238c341
< {
---
> {
240d342
<
243,250c345,352
< if (mtu)
< (void)snprintf(buf, sizeof(buf),
< "%s unreachable - need to frag (mtu %d)",
< ipaddr_string(&dp->icmp_ip.ip_dst), mtu);
< else
< (void)snprintf(buf, sizeof(buf),
< "%s unreachable - need to frag",
< ipaddr_string(&dp->icmp_ip.ip_dst));
---
> if (mtu) {
> (void)snprintf(buf, sizeof(buf),
> "%s unreachable - need to frag (mtu %d)",
> ipaddr_string(&dp->icmp_ip.ip_dst), mtu);
> } else {
> (void)snprintf(buf, sizeof(buf),
> "%s unreachable - need to frag",
> ipaddr_string(&dp->icmp_ip.ip_dst));
251a354
> }
273c376
< {
---
> {
278c381
< (void)strcpy(buf, "router advertisement");
---
> (void)snprintf(buf, sizeof(buf), "router advertisement");
283c386
< (void)strcpy(cp, " lifetime ");
---
> (void)strncpy(cp, " lifetime ", sizeof(buf) - (cp - buf));
286,289c389,393
< if (lifetime < 60)
< (void)snprintf(cp, sizeof(buf) - strlen(buf), "%u", lifetime);
< else if (lifetime < 60 * 60)
< (void)snprintf(cp, sizeof(buf) - strlen(buf), "%u:%02u",
---
> if (lifetime < 60) {
> (void)snprintf(cp, sizeof(buf) - (cp - buf), "%u",
> lifetime);
> } else if (lifetime < 60 * 60) {
> (void)snprintf(cp, sizeof(buf) - (cp - buf), "%u:%02u",
291,292c395,397
< else
< (void)snprintf(cp, sizeof(buf) - strlen(buf), "%u:%02u:%02u",
---
> } else {
> (void)snprintf(cp, sizeof(buf) - (cp - buf),
> "%u:%02u:%02u",
295a401
> }
299c405
< (void)snprintf(cp, sizeof(buf) - strlen(buf), " %d:", num);
---
> (void)snprintf(cp, sizeof(buf) - (cp - buf), " %d:", num);
304c410,411
< (void)snprintf(cp, sizeof(buf) - strlen(buf), " [size %d]", size);
---
> (void)snprintf(cp, sizeof(buf) - (cp - buf),
> " [size %d]", size);
310c417
< (void)snprintf(cp, sizeof(buf) - strlen(buf), " {%s %u}",
---
> (void)snprintf(cp, sizeof(buf) - (cp - buf), " {%s %u}",
313a421
> ++idp;
315c423
< }
---
> }
331c439,440
< (void)snprintf(buf, sizeof(buf), "time exceeded-#%d", dp->icmp_code);
---
> (void)snprintf(buf, sizeof(buf), "time exceeded-#%d",
> dp->icmp_code);
338,339c447,448
< (void)snprintf(buf, sizeof(buf), "parameter problem - code %d",
< dp->icmp_code);
---
> (void)snprintf(buf, sizeof(buf),
> "parameter problem - code %d", dp->icmp_code);
342,343c451,452
< (void)snprintf(buf, sizeof(buf), "parameter problem - octet %d",
< dp->icmp_pptr);
---
> (void)snprintf(buf, sizeof(buf),
> "parameter problem - octet %d", dp->icmp_pptr);
350c459
< (u_int32_t)ntohl(dp->icmp_mask));
---
> (unsigned)ntohl(dp->icmp_mask));
352a462,480
> case ICMP_TSTAMP:
> TCHECK(dp->icmp_seq);
> (void)snprintf(buf, sizeof(buf),
> "time stamp query id %u seq %u",
> (unsigned)ntohs(dp->icmp_id),
> (unsigned)ntohs(dp->icmp_seq));
> break;
>
> case ICMP_TSTAMPREPLY:
> TCHECK(dp->icmp_ttime);
> (void)snprintf(buf, sizeof(buf),
> "time stamp reply id %u seq %u : org 0x%lx recv 0x%lx xmit 0x%lx",
> (unsigned)ntohs(dp->icmp_id),
> (unsigned)ntohs(dp->icmp_seq),
> (unsigned long)ntohl(dp->icmp_otime),
> (unsigned long)ntohl(dp->icmp_rtime),
> (unsigned long)ntohl(dp->icmp_ttime));
> break;
>
< * $FreeBSD: head/contrib/tcpdump/print-icmp.c 66644 2000-10-05 02:49:49Z kris $
---
> * $FreeBSD: head/contrib/tcpdump/print-icmp.c 75118 2001-04-03 07:50:46Z fenner $
26c26
< "@(#) $Header: /tcpdump/master/tcpdump/print-icmp.c,v 1.43 1999/11/22 04:28:21 fenner Exp $ (LBL)";
---
> "@(#) $Header: /tcpdump/master/tcpdump/print-icmp.c,v 1.57 2000/10/10 05:03:32 guy Exp $ (LBL)";
37d36
< #if __STDC__
40,41d38
< #endif
< #include <net/if.h>
44,51d40
< #include <net/ethernet.h>
< #include <netinet/in_systm.h>
< #include <netinet/ip.h>
< #include <netinet/ip_icmp.h>
< #include <netinet/ip_var.h>
< #include <netinet/udp.h>
< #include <netinet/udp_var.h>
< #include <netinet/tcp.h>
54a44
> #include <netdb.h> /* for MAXHOSTNAMELEN on some platforms */
59a50,169
> #include "ip.h"
> #include "udp.h"
>
> /*
> * Interface Control Message Protocol Definitions.
> * Per RFC 792, September 1981.
> */
>
> /*
> * Structure of an icmp header.
> */
> struct icmp {
> u_int8_t icmp_type; /* type of message, see below */
> u_int8_t icmp_code; /* type sub code */
> u_int16_t icmp_cksum; /* ones complement cksum of struct */
> union {
> u_int8_t ih_pptr; /* ICMP_PARAMPROB */
> struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
> struct ih_idseq {
> u_int16_t icd_id;
> u_int16_t icd_seq;
> } ih_idseq;
> u_int32_t ih_void;
>
> /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
> struct ih_pmtu {
> u_int16_t ipm_void;
> u_int16_t ipm_nextmtu;
> } ih_pmtu;
> } icmp_hun;
> #define icmp_pptr icmp_hun.ih_pptr
> #define icmp_gwaddr icmp_hun.ih_gwaddr
> #define icmp_id icmp_hun.ih_idseq.icd_id
> #define icmp_seq icmp_hun.ih_idseq.icd_seq
> #define icmp_void icmp_hun.ih_void
> #define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
> #define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
> union {
> struct id_ts {
> u_int32_t its_otime;
> u_int32_t its_rtime;
> u_int32_t its_ttime;
> } id_ts;
> struct id_ip {
> struct ip idi_ip;
> /* options and then 64 bits of data */
> } id_ip;
> u_int32_t id_mask;
> u_int8_t id_data[1];
> } icmp_dun;
> #define icmp_otime icmp_dun.id_ts.its_otime
> #define icmp_rtime icmp_dun.id_ts.its_rtime
> #define icmp_ttime icmp_dun.id_ts.its_ttime
> #define icmp_ip icmp_dun.id_ip.idi_ip
> #define icmp_mask icmp_dun.id_mask
> #define icmp_data icmp_dun.id_data
> };
>
> /*
> * Lower bounds on packet lengths for various types.
> * For the error advice packets must first insure that the
> * packet is large enought to contain the returned ip header.
> * Only then can we do the check to see if 64 bits of packet
> * data have been returned, since we need to check the returned
> * ip header length.
> */
> #define ICMP_MINLEN 8 /* abs minimum */
> #define ICMP_TSLEN (8 + 3 * sizeof (u_int32_t)) /* timestamp */
> #define ICMP_MASKLEN 12 /* address mask */
> #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
> #define ICMP_ADVLEN(p) (8 + (IP_HL(&(p)->icmp_ip) << 2) + 8)
> /* N.B.: must separately check that ip_hl >= 5 */
>
> /*
> * Definition of type and code field values.
> */
> #define ICMP_ECHOREPLY 0 /* echo reply */
> #define ICMP_UNREACH 3 /* dest unreachable, codes: */
> #define ICMP_UNREACH_NET 0 /* bad net */
> #define ICMP_UNREACH_HOST 1 /* bad host */
> #define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
> #define ICMP_UNREACH_PORT 3 /* bad port */
> #define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
> #define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
> #define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
> #define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
> #define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
> #define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
> #define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
> #define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
> #define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
> #define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
> #define ICMP_REDIRECT 5 /* shorter route, codes: */
> #define ICMP_REDIRECT_NET 0 /* for network */
> #define ICMP_REDIRECT_HOST 1 /* for host */
> #define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
> #define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
> #define ICMP_ECHO 8 /* echo service */
> #define ICMP_ROUTERADVERT 9 /* router advertisement */
> #define ICMP_ROUTERSOLICIT 10 /* router solicitation */
> #define ICMP_TIMXCEED 11 /* time exceeded, code: */
> #define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
> #define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
> #define ICMP_PARAMPROB 12 /* ip header bad */
> #define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
> #define ICMP_TSTAMP 13 /* timestamp request */
> #define ICMP_TSTAMPREPLY 14 /* timestamp reply */
> #define ICMP_IREQ 15 /* information request */
> #define ICMP_IREQREPLY 16 /* information reply */
> #define ICMP_MASKREQ 17 /* address mask request */
> #define ICMP_MASKREPLY 18 /* address mask reply */
>
> #define ICMP_MAXTYPE 18
>
> #define ICMP_INFOTYPE(type) \
> ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
> (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
> (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
> (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
> (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
94,101d203
< /* rfc1256 */
< #ifndef ICMP_ROUTERADVERT
< #define ICMP_ROUTERADVERT 9 /* router advertisement */
< #endif
< #ifndef ICMP_ROUTERSOLICIT
< #define ICMP_ROUTERSOLICIT 10 /* router solicitation */
< #endif
<
154,155c256,257
< short unused;
< short nexthopmtu;
---
> u_int16_t unused;
> u_int16_t nexthopmtu;
160,162c262,264
< u_char ird_addrnum;
< u_char ird_addrsiz;
< u_short ird_lifetime;
---
> u_int8_t ird_addrnum;
> u_int8_t ird_addrsiz;
> u_int16_t ird_lifetime;
201,203c303,306
< (void)snprintf(buf, sizeof(buf), "%s protocol %d unreachable",
< ipaddr_string(&dp->icmp_ip.ip_dst),
< dp->icmp_ip.ip_p);
---
> (void)snprintf(buf, sizeof(buf),
> "%s protocol %d unreachable",
> ipaddr_string(&dp->icmp_ip.ip_dst),
> dp->icmp_ip.ip_p);
209c312
< hlen = oip->ip_hl * 4;
---
> hlen = IP_HL(oip) * 4;
238c341
< {
---
> {
240d342
<
243,250c345,352
< if (mtu)
< (void)snprintf(buf, sizeof(buf),
< "%s unreachable - need to frag (mtu %d)",
< ipaddr_string(&dp->icmp_ip.ip_dst), mtu);
< else
< (void)snprintf(buf, sizeof(buf),
< "%s unreachable - need to frag",
< ipaddr_string(&dp->icmp_ip.ip_dst));
---
> if (mtu) {
> (void)snprintf(buf, sizeof(buf),
> "%s unreachable - need to frag (mtu %d)",
> ipaddr_string(&dp->icmp_ip.ip_dst), mtu);
> } else {
> (void)snprintf(buf, sizeof(buf),
> "%s unreachable - need to frag",
> ipaddr_string(&dp->icmp_ip.ip_dst));
251a354
> }
273c376
< {
---
> {
278c381
< (void)strcpy(buf, "router advertisement");
---
> (void)snprintf(buf, sizeof(buf), "router advertisement");
283c386
< (void)strcpy(cp, " lifetime ");
---
> (void)strncpy(cp, " lifetime ", sizeof(buf) - (cp - buf));
286,289c389,393
< if (lifetime < 60)
< (void)snprintf(cp, sizeof(buf) - strlen(buf), "%u", lifetime);
< else if (lifetime < 60 * 60)
< (void)snprintf(cp, sizeof(buf) - strlen(buf), "%u:%02u",
---
> if (lifetime < 60) {
> (void)snprintf(cp, sizeof(buf) - (cp - buf), "%u",
> lifetime);
> } else if (lifetime < 60 * 60) {
> (void)snprintf(cp, sizeof(buf) - (cp - buf), "%u:%02u",
291,292c395,397
< else
< (void)snprintf(cp, sizeof(buf) - strlen(buf), "%u:%02u:%02u",
---
> } else {
> (void)snprintf(cp, sizeof(buf) - (cp - buf),
> "%u:%02u:%02u",
295a401
> }
299c405
< (void)snprintf(cp, sizeof(buf) - strlen(buf), " %d:", num);
---
> (void)snprintf(cp, sizeof(buf) - (cp - buf), " %d:", num);
304c410,411
< (void)snprintf(cp, sizeof(buf) - strlen(buf), " [size %d]", size);
---
> (void)snprintf(cp, sizeof(buf) - (cp - buf),
> " [size %d]", size);
310c417
< (void)snprintf(cp, sizeof(buf) - strlen(buf), " {%s %u}",
---
> (void)snprintf(cp, sizeof(buf) - (cp - buf), " {%s %u}",
313a421
> ++idp;
315c423
< }
---
> }
331c439,440
< (void)snprintf(buf, sizeof(buf), "time exceeded-#%d", dp->icmp_code);
---
> (void)snprintf(buf, sizeof(buf), "time exceeded-#%d",
> dp->icmp_code);
338,339c447,448
< (void)snprintf(buf, sizeof(buf), "parameter problem - code %d",
< dp->icmp_code);
---
> (void)snprintf(buf, sizeof(buf),
> "parameter problem - code %d", dp->icmp_code);
342,343c451,452
< (void)snprintf(buf, sizeof(buf), "parameter problem - octet %d",
< dp->icmp_pptr);
---
> (void)snprintf(buf, sizeof(buf),
> "parameter problem - octet %d", dp->icmp_pptr);
350c459
< (u_int32_t)ntohl(dp->icmp_mask));
---
> (unsigned)ntohl(dp->icmp_mask));
352a462,480
> case ICMP_TSTAMP:
> TCHECK(dp->icmp_seq);
> (void)snprintf(buf, sizeof(buf),
> "time stamp query id %u seq %u",
> (unsigned)ntohs(dp->icmp_id),
> (unsigned)ntohs(dp->icmp_seq));
> break;
>
> case ICMP_TSTAMPREPLY:
> TCHECK(dp->icmp_ttime);
> (void)snprintf(buf, sizeof(buf),
> "time stamp reply id %u seq %u : org 0x%lx recv 0x%lx xmit 0x%lx",
> (unsigned)ntohs(dp->icmp_id),
> (unsigned)ntohs(dp->icmp_seq),
> (unsigned long)ntohl(dp->icmp_otime),
> (unsigned long)ntohl(dp->icmp_rtime),
> (unsigned long)ntohl(dp->icmp_ttime));
> break;
>