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/* Copyright (c) Microsoft Corporation. All rights reserved. */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Mike Muuss.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if 0
static char copyright[] =
"@(#) Copyright (c) 1989, 1993\n\
The Regents of the University of California. All rights reserved.\n";
static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
#endif
/*
* P I N G . C
*
* Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
* measure round-trip-delays and packet loss across network paths.
*
* Author -
* Mike Muuss
* U. S. Army Ballistic Research Laboratory
* December, 1983
*
* Status -
* Public Domain. Distribution Unlimited.
* Bugs -
* More statistics could always be gathered.
* This program has to run SUID to ROOT to access the ICMP socket.
*/
#define UNIX 0
#if UNIX
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/ip_var.h>
#include <netdb.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
extern int errno;
#else
#include <stdio.h>
#include <mmlite.h>
#include <mmhal.h>
#include <stdlib.h>
#include <tchar.h>
#include <winsock.h>
typedef UINT16 n_short;
typedef UINT32 n_long; /* long as received from the net */
typedef UINT32 n_time; /* ms since 00:00 GMT, byte rev */
#ifdef _MSC_VER
#pragma warning(disable:4706) /* assignment within conditional */
#endif
#include "getopt.c"
BOOL NewThread( void THREAD_LINKAGE ThreadFunction(THREAD_ARGUMENT),
THREAD_ARGUMENT ThreadArgument);
static void THREAD_LINKAGE InputThread (THREAD_ARGUMENT Arg );
#define MAXHOSTNAMELEN 128
//FILE *stderr, *stdin;
_TCHAR *__progname = _T("ping");
volatile BOOL Exiting = FALSE;
char *_itot( _TCHAR *s);
TIME tvtoE( struct timeval *tv);
extern int optind;
extern _TCHAR *optarg;
extern int getopt(
int nargc,
_TCHAR * const *nargv,
const _TCHAR *ostr);
#define bzero(p,s) memset(p,0,s)
#define bcopy(from,to,count) memcpy(to,from,count)
#define bcmp(a,b,c) memcmp(a,b,c)
void perror(char *msg);
#define putchar(c) _tprintf(_T("%c"),c)
typedef void (*SignalHandler)(void);
#define SIG_IGN NULL
#define SIGINT 0
#define SIGALRM 1
#define NSIG 2
SignalHandler signal(UINT SigNo, SignalHandler Handler);
void alarm(UINT nSeconds);
struct timezone {
int unused;
};
void gettimeofday(struct timeval *now, struct timezone *zone);
void tvsub(struct timeval *out, struct timeval *in);
/* .... ip.h .... */
/*
* Definitions for internet protocol version 4.
* Per RFC 791, September 1981.
*/
#define IPVERSION 4
/*
* Structure of an internet header, naked of options.
*/
#ifdef _MSC_VER
#pragma warning(disable:4214) /* nonstandard: bit field types other than int */
#endif
#ifdef __STDC__
#define BITFIELD_UINT8 UINT
#else
#define BITFIELD_UINT8 UINT8
#endif
struct ip {
BITFIELD_UINT8
#if BYTE_ORDER == LITTLE_ENDIAN
ip_hl:4, /* header length */
ip_v:4; /* version */
#endif
#if BYTE_ORDER == BIG_ENDIAN
ip_v:4, /* version */
ip_hl:4; /* header length */
#endif
UINT8 ip_tos; /* type of service */
UINT16 ip_len; /* total length */
UINT16 ip_id; /* identification */
UINT16 ip_off; /* flags and fragment offset */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
UINT8 ip_ttl; /* time to live */
UINT8 ip_p; /* protocol */
UINT16 ip_sum; /* checksum */
struct in_addr ip_src, ip_dst; /* source and dest address */
};
#define IP_MAXPACKET 65535 /* maximum packet size */
/*
* Definitions for IP type of service (ip_tos)
*/
#define IPTOS_LOWDELAY 0x10
#define IPTOS_THROUGHPUT 0x08
#define IPTOS_RELIABILITY 0x04
/*
* Definitions for IP precedence (also in ip_tos) (hopefully unused)
*/
#define IPTOS_PREC_NETCONTROL 0xe0
#define IPTOS_PREC_INTERNETCONTROL 0xc0
#define IPTOS_PREC_CRITIC_ECP 0xa0
#define IPTOS_PREC_FLASHOVERRIDE 0x80
#define IPTOS_PREC_FLASH 0x60
#define IPTOS_PREC_IMMEDIATE 0x40
#define IPTOS_PREC_PRIORITY 0x20
#define IPTOS_PREC_ROUTINE 0x10
/*
* Definitions for options.
*/
#define IPOPT_COPIED(o) ((o)&0x80)
#define IPOPT_CLASS(o) ((o)&0x60)
#define IPOPT_NUMBER(o) ((o)&0x1f)
#define IPOPT_CONTROL 0x00
#define IPOPT_RESERVED1 0x20
#define IPOPT_DEBMEAS 0x40
#define IPOPT_RESERVED2 0x60
#define IPOPT_EOL 0 /* end of option list */
#define IPOPT_NOP 1 /* no operation */
#define IPOPT_RR 7 /* record packet route */
#define IPOPT_TS 68 /* timestamp */
#define IPOPT_SECURITY 130 /* provide s,c,h,tcc */
#define IPOPT_LSRR 131 /* loose source route */
#define IPOPT_SATID 136 /* satnet id */
#define IPOPT_SSRR 137 /* strict source route */
/*
* Offsets to fields in options other than EOL and NOP.
*/
#define IPOPT_OPTVAL 0 /* option ID */
#define IPOPT_OLEN 1 /* option length */
#define IPOPT_OFFSET 2 /* offset within option */
#define IPOPT_MINOFF 4 /* min value of above */
/* .... ip.h .... */
/* ... ip_var.h ... */
#define MAX_IPOPTLEN 40
/* ... ip_var.h ... */
/* ... ip_icmp.h ... */
/*
* Structure of an icmp header.
*/
struct icmp {
UINT8 icmp_type; /* type of message, see below */
UINT8 icmp_code; /* type sub code */
UINT16 icmp_cksum; /* ones complement cksum of struct */
union {
UINT8 ih_pptr; /* ICMP_PARAMPROB */
struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
struct ih_idseq {
n_short icd_id;
n_short icd_seq;
} ih_idseq;
INT ih_void;
/* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
struct ih_pmtu {
n_short ipm_void;
n_short 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 {
n_time its_otime;
n_time its_rtime;
n_time its_ttime;
} id_ts;
struct id_ip {
struct ip idi_ip;
/* options and then 64 bits of data */
} id_ip;
UINT32 id_mask;
char 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 (n_time)) /* timestamp */
#define ICMP_MASKLEN 12 /* address mask */
#define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
#define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 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, codes: */
#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)
/* ... ip_icmp.h ... */
#endif
#define DEFDATALEN (64 - 8) /* default data length */
#define MAXIPLEN 60
#define MAXICMPLEN 76
#define MAXPACKET (65536 - 60 - 8)/* max packet size */
#define MAXWAIT 10 /* max seconds to wait for response */
#define NROUTES 9 /* number of record route slots */
#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
#define SET(bit) (A(bit) |= B(bit))
#define CLR(bit) (A(bit) &= (~B(bit)))
#define TST(bit) (A(bit) & B(bit))
/* various options */
int options;
#define F_FLOOD 0x001
#define F_INTERVAL 0x002
#define F_NUMERIC 0x004
#define F_PINGFILLED 0x008
#define F_QUIET 0x010
#define F_RROUTE 0x020
#define F_SO_DEBUG 0x040
#define F_SO_DONTROUTE 0x080
#define F_VERBOSE 0x100
/*
* MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
* number of received sequence numbers we can keep track of. Change 128
* to 8192 for complete accuracy...
*/
#define MAX_DUP_CHK (8 * 128)
int mx_dup_ck = MAX_DUP_CHK;
char rcvd_tbl[MAX_DUP_CHK / 8];
struct sockaddr whereto; /* who to ping */
int datalen = DEFDATALEN;
int s; /* socket file descriptor */
u_char outpack[MAXPACKET];
char BSPACE = '\b'; /* characters written for flood */
char DOT = '.';
char *hostname;
UINT16 ident; /* id to identify our packets */
char hnamebuf[MAXHOSTNAMELEN];
/* counters */
UINT npackets; /* max packets to transmit */
UINT nreceived; /* # of packets we got back */
UINT nrepeats; /* number of duplicates */
UINT ntransmitted; /* sequence # for outbound packets = #sent */
int interval = 1; /* interval between packets */
/* timing */
int timing; /* flag to do timing */
UINT64 tmin = Int64Initializer(0,999999999); /* minimum round trip time */
UINT64 tmax = Int64Initializer(0,0); /* maximum round trip time */
UINT64 tsum = Int64Initializer(0,0); /* sum of all times, for doing average */
/* Made global so that they can be freed at the end */
char *target=NULL;
u_char *packet=NULL;
void usage(void);
void pinger(void);
void pr_pack(char *buf, int cc, struct sockaddr_in *from);
void fill(char *bp, _TCHAR *patp);
UINT16 in_cksum(UINT16 *addr, int len);
void pr_icmph(struct icmp *icp);
void pr_iph(struct ip *ip);
_TCHAR *pr_addr(u_long l);
void pr_retip(struct ip *ip);
void catcher(void), finish(void);
/* MyExit is called twice (by two threads). So, in order to make sure that
* the same memory is not freed twice, pointers 'target' and 'packet' are
* made NULL after freeing the memory once.
*/
void MyExit(int value)
{
Exiting = TRUE;
#if !UNIX
FreeCmdLine(0,0);
#endif
if (target) {
free(target);
target = NULL;
}
if (packet) {
free(packet);
packet = NULL;
}
exit(value);
}
int _tmain(INT argc, _TCHAR *argv[])
{
struct timeval timeout;
struct hostent *hp;
struct sockaddr_in *to;
#if UNIX || GET_X_BY_Y
struct protoent *proto;
#endif
register int i;
int ch, hold, packlen, preload;
fd_set fdmask;
u_char *datap;
#ifdef IP_OPTIONS
char rspace[3 + 4 * NROUTES + 1]; /* record route space */
#endif
#if !UNIX
if (argv == NULL)
ParseCmdLine(&argc, &argv);
#endif
preload = 0;
datap = &outpack[8 + sizeof(struct timeval)];
while ((ch = getopt(argc, argv, _T("Rc:dfh:i:l:np:qrs:v"))) != EOF)
switch(ch) {
case 'c':
npackets = _ttoi(optarg);
if (npackets <= 0) {
(void)_ftprintf(stderr,
_T("ping: bad number of packets to transmit.\n"));
MyExit(1);
}
break;
case 'd':
options |= F_SO_DEBUG;
break;
case 'f':
#if UNIX
if (getuid()) {
(void)_ftprintf(stderr,
_T("ping: %s\n"), strerror(EPERM));
MyExit(1);
}
setbuf(stdout, (char *)NULL);
#endif
options |= F_FLOOD;
break;
case 'i': /* wait between sending packets */
interval = _ttoi(optarg);
if (interval <= 0) {
(void)_ftprintf(stderr,
_T("ping: bad timing interval.\n"));
MyExit(1);
}
options |= F_INTERVAL;
break;
case 'l':
preload = _ttoi(optarg);
if (preload < 0) {
(void)_ftprintf(stderr,
_T("ping: bad preload value.\n"));
MyExit(1);
}
break;
case 'n':
options |= F_NUMERIC;
break;
#if UNIX
case 'p': /* fill buffer with user pattern */
options |= F_PINGFILLED;
fill((char *)datap, optarg);
break;
#endif
case 'q':
options |= F_QUIET;
break;
case 'R':
options |= F_RROUTE;
break;
case 'r':
options |= F_SO_DONTROUTE;
break;
case 's': /* size of packet to send */
datalen = _ttoi(optarg);
if (datalen > MAXPACKET) {
(void)_ftprintf(stderr,
_T("ping: packet size too large.\n"));
MyExit(1);
}
if (datalen <= 0) {
(void)_ftprintf(stderr,
_T("ping: illegal packet size.\n"));
MyExit(1);
}
break;
case 'v':
options |= F_VERBOSE;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
target = _itot(*argv);
bzero((char *)&whereto, sizeof(struct sockaddr));
to = (struct sockaddr_in *)&whereto;
to->sin_family = AF_INET;
to->sin_len = 16;
to->sin_addr.s_addr = inet_addr(target);
if (to->sin_addr.s_addr != (u_int)-1)
hostname = target;
else {
hp = gethostbyname(target);
if (!hp) {
(void)_ftprintf(stderr,
_T("ping: unknown host %hs\n"), target);
MyExit(1);
}
to->sin_family = (UINT8) hp->h_addrtype;
bcopy(hp->h_addr, (PTR)&to->sin_addr, hp->h_length);
(void)strncpy(hnamebuf, hp->h_name, sizeof(hnamebuf) - 1);
hostname = hnamebuf;
}
if (options & F_FLOOD && options & F_INTERVAL) {
(void)_ftprintf(stderr,
_T("ping: -f and -i incompatible options.\n"));
MyExit(1);
}
if (datalen >= sizeof(struct timeval)) /* can we time transfer */
timing = 1;
packlen = datalen + MAXIPLEN + MAXICMPLEN;
packet = (u_char *)malloc((u_int)packlen);
if (!packet) {
(void)_ftprintf(stderr, _T("ping: out of memory.\n"));
MyExit(1);
}
if (!(options & F_PINGFILLED))
for (i = 8; i < datalen; ++i)
*datap++ = (u_char)i;
ident = (UINT16)Int64ToInt32(CurrentTime());
#if UNIX || GET_X_BY_Y
if (!(proto = getprotobyname("icmp"))) {
(void)_ftprintf(stderr, _T("ping: unknown protocol icmp.\n"));
MyExit(1);
}
if ((s = socket(AF_INET, SOCK_RAW, proto->p_proto)) == -1)
#else
if ((s = socket(AF_INET, SOCK_RAW, 1)) == INVALID_SOCKET)
#endif
{
perror("ping: socket");
MyExit(1);
}
#define IGOTABUG 1
#if IGOTABUG
/* BUGBUG why do I have to bind it ? why is inp_laddr 0 ?
* If I dont say I have an IP header the IP address should come
* from the interface this gets sent from. Damn.
*/
{
#define USE_IP_ADDR_DIRECTLY 1
#if USE_IP_ADDR_DIRECTLY
/* NOW -> uses ip address directly using gethostaddr() and
* if doesn't work then try dns on own name
* OLD -> tries to map host name to ip assuming stringified ipaddress and
* if it doesn't work then using dns query on name to get own ip address
*/
struct sockaddr_in sinme;
char myname[32];
memset(&sinme,0,sizeof sinme);
sinme.sin_family = AF_INET;
sinme.sin_len = 16;
sinme.sin_addr.s_addr = gethostaddr();
if (sinme.sin_addr.s_addr == INADDR_NONE) {
/* Try DNS */
struct hostent *hp;
gethostname(myname,32);
hp = gethostbyname(myname);
if (!hp) {
(void) fprintf(stderr,
"ping: who am I? unknown host %hs\n",
myname);
MyExit(1);
}
sinme.sin_family = (UINT8) hp->h_addrtype;
bcopy(hp->h_addr, (PTR)&sinme.sin_addr, hp->h_length);
}
#else
struct sockaddr_in sinme;
char myname[32];
gethostname(myname,32);
memset(&sinme,0,sizeof sinme);
sinme.sin_family = AF_INET;
sinme.sin_len = 16;
sinme.sin_addr.s_addr = inet_addr(myname);
if (sinme.sin_addr.s_addr == INADDR_NONE) {
/* Try DNS */
struct hostent *hp;
hp = gethostbyname(myname);
if (!hp) {
(void) fprintf(stderr,
"ping: who am I? unknown host %hs\n",
myname);
MyExit(1);
}
sinme.sin_family = (UINT8) hp->h_addrtype;
bcopy(hp->h_addr, (PTR)&sinme.sin_addr, hp->h_length);
}
#endif
if (bind(s, (const struct sockaddr *)&sinme, sizeof(sinme)) < 0) {
perror("ping: bind");
MyExit(1);
}
}
#endif
hold = 1;
if (options & F_SO_DEBUG)
(void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
sizeof(hold));
if (options & F_SO_DONTROUTE)
(void)setsockopt(s, SOL_SOCKET, SO_DONTROUTE, (char *)&hold,
sizeof(hold));
/* record route option */
if (options & F_RROUTE) {
#ifdef IP_OPTIONS
rspace[IPOPT_OPTVAL] = IPOPT_RR;
rspace[IPOPT_OLEN] = sizeof(rspace)-1;
rspace[IPOPT_OFFSET] = IPOPT_MINOFF;
if (setsockopt(s, IPPROTO_IP, IP_OPTIONS, rspace,
sizeof(rspace)) < 0) {
perror("ping: record route");
MyExit(1);
}
#else
(void)_ftprintf(stderr,
_T("ping: record route not available in this implementation.\n"));
MyExit(1);
#endif /* IP_OPTIONS */
}
/*
* When pinging the broadcast address, you can get a lot of answers.
* Doing something so evil is useful if you are trying to stress the
* ethernet, or just want to fill the arp cache to get some stuff for
* /etc/ethers.
*/
hold = 48 * 1024;
(void)setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
sizeof(hold));
if (to->sin_family == AF_INET)
(void)_tprintf(_T("PING %hs (%hs): %d data bytes\n"), hostname,
inet_ntoa(*(struct in_addr *)&to->sin_addr.s_addr),
datalen);
else
(void)_tprintf(_T("PING %hs: %d data bytes\n"), hostname, datalen);
#if !UNIX
NewThread( InputThread, stdin );
#endif
(void)signal(SIGINT, finish);
(void)signal(SIGALRM, catcher);
while (preload--) /* fire off them quickies */
pinger();
if ((options & F_FLOOD) == 0)
catcher(); /* start things going */
while (!Exiting) {
struct sockaddr_in from;
register int cc;
int fromlen;
if (options & F_FLOOD) {
pinger();
timeout.tv_sec = 0;
timeout.tv_usec = 10000;
FD_ZERO(&fdmask);
FD_SET(s,&fdmask);
if (select(s + 1, &fdmask, NULL, NULL, &timeout) < 1)
continue;
}
fromlen = sizeof(from);
if ((cc = recvfrom(s, (char *)packet, packlen, 0,
(struct sockaddr *)&from, &fromlen)) < 0) {
#if UNIX
if (errno == EINTR)
continue;
#endif
perror("ping: recvfrom");
continue;
}
pr_pack((char *)packet, cc, &from);
if (npackets && nreceived >= npackets)
break;
}
finish();
/* NOTREACHED */
return 0;
}
/*
* catcher --
* This routine causes another PING to be transmitted, and then
* schedules another SIGALRM for 1 second from now.
*
* bug --
* Our sense of time will slowly skew (i.e., packets will not be
* launched exactly at 1-second intervals). This does not affect the
* quality of the delay and loss statistics.
*/
void
catcher(void)
{
u_int waittime;
pinger();
(void)signal(SIGALRM, catcher);
if (!npackets || ntransmitted < npackets)
alarm((u_int)interval);
else {
if (nreceived) {
waittime = (u_int)(2 * Int64ToInt32(Int64DividedByInt32(Uint64ToInt64(tmax), 10000000)));
if (waittime == 0)
waittime = 1;
} else
waittime = MAXWAIT;
(void)signal(SIGALRM, finish);
(void)alarm(waittime);
}
}
/*
* pinger --
* Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
* will be added on by the kernel. The ID field is our UNIX process ID,
* and the sequence number is an ascending integer. The first 8 bytes
* of the data portion are used to hold a UNIX "timeval" struct in <xxx>
* byte-order, to compute the round-trip time.
*/
void pinger(void)
{
register struct icmp *icp;
register int cc;
int i;
if (s == INVALID_SOCKET) return;
icp = (struct icmp *)outpack;
icp->icmp_type = ICMP_ECHO;
icp->icmp_code = 0;
icp->icmp_cksum = 0;
icp->icmp_seq = (UINT16)ntransmitted++;
icp->icmp_id = ident; /* ID */
CLR(icp->icmp_seq % mx_dup_ck);
if (timing)
(void)gettimeofday((struct timeval *)&outpack[8],
(struct timezone *)NULL);
cc = datalen + 8; /* skips ICMP portion */
/* compute ICMP checksum here */
icp->icmp_cksum = in_cksum((UINT16 *)icp, cc);
i = sendto(s, (char *)outpack, cc, 0, &whereto,
sizeof(struct sockaddr));
if (i < 0 || i != cc) {
if (i < 0)
perror("ping: sendto");
(void)_tprintf(_T("ping: wrote %hs %d chars, ret=%d\n"),
hostname, cc, i);
}
if (!(options & F_QUIET) && options & F_FLOOD)
(void)_tprintf(_T("%c"), DOT);
}
/*
* pr_pack --
* Print out the packet, if it came from us. This logic is necessary
* because ALL readers of the ICMP socket get a copy of ALL ICMP packets
* which arrive ('tis only fair). This permits multiple copies of this
* program to be run without having intermingled output (or statistics!).
*/
void pr_pack(char *buf, int cc, struct sockaddr_in *from)
{
register struct icmp *icp;
register u_long l;
register int i, j;
register u_char *cp,*dp;
static int old_rrlen;
static char old_rr[MAX_IPOPTLEN];
struct ip *ip;
struct timeval tv, *tp;
TIME triptime;
int hlen, dupflag;
Int32ToInt64(triptime,0);
(void)gettimeofday(&tv, (struct timezone *)NULL);
/* Check the IP header */
ip = (struct ip *)buf;
hlen = ip->ip_hl << 2;
if (cc < hlen + ICMP_MINLEN) {
if (options & F_VERBOSE)
(void)_ftprintf(stderr,
_T("ping: packet too short (%d bytes) from %hs\n"), cc,
inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr));
return;
}
/* Now the ICMP part */
cc -= hlen;
icp = (struct icmp *)(buf + hlen);
if (icp->icmp_type == ICMP_ECHOREPLY) {
if (icp->icmp_id != ident)
return; /* 'Twas not our ECHO */
++nreceived;
if (timing) {
#ifndef icmp_data
tp = (struct timeval *)&icp->icmp_ip;
#else
tp = (struct timeval *)icp->icmp_data;
#endif
tvsub(&tv, tp);
triptime = tvtoE(&tv);
if (Uint64Less(Int64ToUint64(triptime), tmin))
tmin = Int64ToUint64(triptime);
if (Uint64Less(tmax, Int64ToUint64(triptime)))
tmax = Int64ToUint64(triptime);
#if whenabugisfixed
tsum = Uint64Add(tsum, Int64ToUint64(triptime));
#else
triptime = Int64Add(Uint64ToInt64(tsum),triptime);
tsum = Int64ToUint64(triptime);
#endif
}
if (TST(icp->icmp_seq % mx_dup_ck)) {
++nrepeats;
--nreceived;
dupflag = 1;
} else {
SET(icp->icmp_seq % mx_dup_ck);
dupflag = 0;
}
if (options & F_QUIET)
return;
if (options & F_FLOOD)
(void)_tprintf(_T("%c"), BSPACE);
else {
(void)_tprintf(_T("%d bytes from %hs: icmp_seq=%u"),cc,
inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr),
icp->icmp_seq);
(void)_tprintf(_T(" ttl=%d"), ip->ip_ttl);
if (timing)
(void)_tprintf(_T(" time=%d micros"), Int64ToInt32(triptime)/10);
if (dupflag)
(void)_tprintf(_T(" (DUP!)"));
/* check the data */
cp = (u_char*)&icp->icmp_data[8];
dp = &outpack[8 + sizeof(struct timeval)];
for (i = 8; i < datalen; ++i, ++cp, ++dp) {
if (*cp != *dp) {
(void)_tprintf(_T("\nwrong data byte #%d should be 0x%x but was 0x%x"),
i, *dp, *cp);
cp = (u_char*)&icp->icmp_data[0];
for (i = 8; i < datalen; ++i, ++cp) {
if ((i % 32) == 8)
(void)_tprintf(_T("\n\t"));
(void)_tprintf(_T("%x "), *cp);
}
break;
}
}
}
} else {
/* We've got something other than an ECHOREPLY */
if (!(options & F_VERBOSE))
return;
(void)_tprintf(_T("%d bytes from %s: "), cc,
pr_addr(from->sin_addr.s_addr));
pr_icmph(icp);
}
/* Display any IP options */
cp = (u_char *)buf + sizeof(struct ip);
for (; hlen > (int)sizeof(struct ip); --hlen, ++cp)
switch (*cp) {
case IPOPT_EOL:
hlen = 0;
break;
case IPOPT_LSRR:
(void)_tprintf(_T("\nLSRR: "));
hlen -= 2;
j = *++cp;
++cp;
if (j > IPOPT_MINOFF)
for (;;) {
l = *++cp;
l = (l<<8) + *++cp;
l = (l<<8) + *++cp;
l = (l<<8) + *++cp;
if (l == 0)
(void)_tprintf(_T("\t0.0.0.0"));
else
(void)_tprintf(_T("\t%s"), pr_addr(ntohl(l)));
hlen -= 4;
j -= 4;
if (j <= IPOPT_MINOFF)
break;
(void)putchar('\n');
}
break;
case IPOPT_RR:
j = *++cp; /* get length */
i = *++cp; /* and pointer */
hlen -= 2;
if (i > j)
i = j;
i -= IPOPT_MINOFF;
if (i <= 0)
continue;
if (i == old_rrlen
&& cp == (u_char *)buf + sizeof(struct ip) + 2
&& !bcmp((char *)cp, old_rr, i)
&& !(options & F_FLOOD)) {
(void)_tprintf(_T("\t(same route)"));
i = ((i + 3) / 4) * 4;
hlen -= i;
cp += i;
break;
}
old_rrlen = i;
bcopy((char *)cp, old_rr, i);
(void)_tprintf(_T("\nRR: "));
for (;;) {
l = *++cp;
l = (l<<8) + *++cp;
l = (l<<8) + *++cp;
l = (l<<8) + *++cp;
if (l == 0)
(void)_tprintf(_T("\t0.0.0.0"));
else
(void)_tprintf(_T("\t%s"), pr_addr(ntohl(l)));
hlen -= 4;
i -= 4;
if (i <= 0)
break;
(void)putchar('\n');
}
break;
case IPOPT_NOP:
(void)_tprintf(_T("\nNOP"));
break;
default:
(void)_tprintf(_T("\nunknown option %x"), *cp);
break;
}
if (!(options & F_FLOOD)) {
(void)putchar('\n');
}
}
/*
* in_cksum --
* Checksum routine for Internet Protocol family headers (C Version)
*/
UINT16 in_cksum(UINT16 *addr, int len)
{
register int nleft = len;
register UINT16 *w = addr;
register int sum = 0;
UINT16 answer = 0;
/*
* Our algorithm is simple, using a 32 bit accumulator (sum), we add
* sequential 16 bit words to it, and at the end, fold back all the
* carry bits from the top 16 bits into the lower 16 bits.
*/
while (nleft > 1) {
sum += *w++;
nleft -= 2;
}
/* mop up an odd byte, if necessary */
if (nleft == 1) {
*(u_char *)(&answer) = *(u_char *)w ;
sum += answer;
}
/* add back carry outs from top 16 bits to low 16 bits */
sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */
sum += (sum >> 16); /* add carry */
answer = (UINT16)(~sum); /* truncate to 16 bits */
return(answer);
}
/*
* tvsub --
* Subtract 2 timeval structs: out = out - in. Out is assumed to
* be >= in.
*/
void tvsub(struct timeval *out, struct timeval *in)
{
if ((out->tv_usec -= in->tv_usec) < 0) {
--out->tv_sec;
out->tv_usec += 1000000;
}
out->tv_sec -= in->tv_sec;
}
/*
* finish --
* Print out statistics, and give up.
*/
void
finish(void)
{
int ss = s;
(void)signal(SIGINT, SIG_IGN);
(void)putchar('\n');
(void)_tprintf(_T("--- %hs ping statistics ---\n"), hostname);
(void)_tprintf(_T("%d packets transmitted, "), ntransmitted);
(void)_tprintf(_T("%d packets received, "), nreceived);
if (nrepeats)
(void)_tprintf(_T("+%d duplicates, "), nrepeats);
if (ntransmitted) {
if (nreceived > ntransmitted)
(void)_tprintf(_T("-- somebody's printing up packets!"));
else
(void)_tprintf(_T("%d%% packet loss"),
(int) (((ntransmitted - nreceived) * 100) /
ntransmitted));
}
(void)putchar('\n');
if (nreceived && timing) {
/* Only display average to microseconds */
UINT32 m, a, M;
m = Uint64ToUint32(tmin) / 10;
a = Uint64ToUint32(tsum) / ((nreceived + nrepeats) * 10);
M = Uint64ToUint32(tmax) / 10;
(void)_tprintf(_T("round-trip min/avg/max = %d/%d/%d micros\n"),
m, a, M);
}
s = INVALID_SOCKET;
closesocket(ss);
MyExit(0);
}
#ifdef notdef
static char *ttab[] = {
"Echo Reply", /* ip + seq + udata */
"Dest Unreachable", /* net, host, proto, port, frag, sr + IP */
"Source Quench", /* IP */
"Redirect", /* redirect type, gateway, + IP */
"Echo",
"Time Exceeded", /* transit, frag reassem + IP */
"Parameter Problem", /* pointer + IP */
"Timestamp", /* id + seq + three timestamps */
"Timestamp Reply", /* " */
"Info Request", /* id + sq */
"Info Reply" /* " */
};
#endif
/*
* pr_icmph --
* Print a descriptive string about an ICMP header.
*/
void pr_icmph(struct icmp *icp)
{
switch(icp->icmp_type) {
case ICMP_ECHOREPLY:
(void)_tprintf(_T("Echo Reply\n"));
/* XXX ID + Seq + Data */
break;
case ICMP_UNREACH:
switch(icp->icmp_code) {
case ICMP_UNREACH_NET:
(void)_tprintf(_T("Destination Net Unreachable\n"));
break;
case ICMP_UNREACH_HOST:
(void)_tprintf(_T("Destination Host Unreachable\n"));
break;
case ICMP_UNREACH_PROTOCOL:
(void)_tprintf(_T("Destination Protocol Unreachable\n"));
break;
case ICMP_UNREACH_PORT:
(void)_tprintf(_T("Destination Port Unreachable\n"));
break;
case ICMP_UNREACH_NEEDFRAG:
(void)_tprintf(_T("frag needed and DF set\n"));
break;
case ICMP_UNREACH_SRCFAIL:
(void)_tprintf(_T("Source Route Failed\n"));
break;
default:
(void)_tprintf(_T("Dest Unreachable, Bad Code: %d\n"),
icp->icmp_code);
break;
}
/* Print returned IP header information */
#ifndef icmp_data
pr_retip(&icp->icmp_ip);
#else
pr_retip((struct ip *)icp->icmp_data);
#endif
break;
case ICMP_SOURCEQUENCH:
(void)_tprintf(_T("Source Quench\n"));
#ifndef icmp_data
pr_retip(&icp->icmp_ip);
#else
pr_retip((struct ip *)icp->icmp_data);
#endif
break;
case ICMP_REDIRECT:
switch(icp->icmp_code) {
case ICMP_REDIRECT_NET:
(void)_tprintf(_T("Redirect Network"));
break;
case ICMP_REDIRECT_HOST:
(void)_tprintf(_T("Redirect Host"));
break;
case ICMP_REDIRECT_TOSNET:
(void)_tprintf(_T("Redirect Type of Service and Network"));
break;
case ICMP_REDIRECT_TOSHOST:
(void)_tprintf(_T("Redirect Type of Service and Host"));
break;
default:
(void)_tprintf(_T("Redirect, Bad Code: %d"), icp->icmp_code);
break;
}
(void)_tprintf(_T("(New addr: 0x%08x)\n"), icp->icmp_gwaddr.s_addr);
#ifndef icmp_data
pr_retip(&icp->icmp_ip);
#else
pr_retip((struct ip *)icp->icmp_data);
#endif
break;
case ICMP_ECHO:
(void)_tprintf(_T("Echo Request\n"));
/* XXX ID + Seq + Data */
break;
case ICMP_TIMXCEED:
switch(icp->icmp_code) {
case ICMP_TIMXCEED_INTRANS:
(void)_tprintf(_T("Time to live exceeded\n"));
break;
case ICMP_TIMXCEED_REASS:
(void)_tprintf(_T("Frag reassembly time exceeded\n"));
break;
default:
(void)_tprintf(_T("Time exceeded, Bad Code: %d\n"),
icp->icmp_code);
break;
}
#ifndef icmp_data
pr_retip(&icp->icmp_ip);
#else
pr_retip((struct ip *)icp->icmp_data);
#endif
break;
case ICMP_PARAMPROB:
(void)_tprintf(_T("Parameter problem: pointer = 0x%02x\n"),
icp->icmp_hun.ih_pptr);
#ifndef icmp_data
pr_retip(&icp->icmp_ip);
#else
pr_retip((struct ip *)icp->icmp_data);
#endif
break;
case ICMP_TSTAMP:
(void)_tprintf(_T("Timestamp\n"));
/* XXX ID + Seq + 3 timestamps */
break;
case ICMP_TSTAMPREPLY:
(void)_tprintf(_T("Timestamp Reply\n"));
/* XXX ID + Seq + 3 timestamps */
break;
case ICMP_IREQ:
(void)_tprintf(_T("Information Request\n"));
/* XXX ID + Seq */
break;
case ICMP_IREQREPLY:
(void)_tprintf(_T("Information Reply\n"));
/* XXX ID + Seq */
break;
#ifdef ICMP_MASKREQ
case ICMP_MASKREQ:
(void)_tprintf(_T("Address Mask Request\n"));
break;
#endif
#ifdef ICMP_MASKREPLY
case ICMP_MASKREPLY:
(void)_tprintf(_T("Address Mask Reply\n"));
break;
#endif
default:
(void)_tprintf(_T("Bad ICMP type: %d\n"), icp->icmp_type);
}
}
/*
* pr_iph --
* Print an IP header with options.
*/
void pr_iph(struct ip *ip)
{
int hlen;
u_char *cp;
hlen = ip->ip_hl << 2;
cp = (u_char *)ip + 20; /* point to options */
(void)_tprintf(_T("Vr HL TOS Len ID Flg off TTL Pro cks Src Dst Data\n"));
(void)_tprintf(_T(" %1x %1x %02x %04x %04x"),
ip->ip_v, ip->ip_hl, ip->ip_tos, ip->ip_len, ip->ip_id);
(void)_tprintf(_T(" %1x %04x"), ((ip->ip_off) & 0xe000) >> 13,
(ip->ip_off) & 0x1fff);
(void)_tprintf(_T(" %02x %02x %04x"), ip->ip_ttl, ip->ip_p, ip->ip_sum);
(void)_tprintf(_T(" %hs "), inet_ntoa(*(struct in_addr *)&ip->ip_src.s_addr));
(void)_tprintf(_T(" %hs "), inet_ntoa(*(struct in_addr *)&ip->ip_dst.s_addr));
/* dump and option bytes */
while (hlen-- > 20) {
(void)_tprintf(_T("%02x"), *cp++);
}
(void)putchar('\n');
}
/*
* pr_addr --
* Return an ascii host address as a dotted quad and optionally with
* a hostname.
*/
_TCHAR *pr_addr(u_long l)
{
struct hostent *hp;
static _TCHAR buf[80];
if ((options & F_NUMERIC) ||
!(hp = gethostbyaddr((char *)&l, 4, AF_INET)))
(void)_stprintf(buf, _T("%hs"), inet_ntoa(*(struct in_addr *)&l));
else
(void)_stprintf(buf, _T("%hs (%hs)"), hp->h_name,
inet_ntoa(*(struct in_addr *)&l));
return(buf);
}
/*
* pr_retip --
* Dump some info on a returned (via ICMP) IP packet.
*/
void pr_retip(struct ip *ip)
{
int hlen;
u_char *cp;
pr_iph(ip);
hlen = ip->ip_hl << 2;
cp = (u_char *)ip + hlen;
if (ip->ip_p == 6)
(void)_tprintf(_T("TCP: from port %u, to port %u (decimal)\n"),
(*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
else if (ip->ip_p == 17)
(void)_tprintf(_T("UDP: from port %u, to port %u (decimal)\n"),
(*cp * 256 + *(cp + 1)), (*(cp + 2) * 256 + *(cp + 3)));
}
#if UNIX
void fill(char *bp, _TCHAR *patp)
{
register u_int ii, jj, kk;
int pat[16];
char *cp;
for (cp = patp; *cp; cp++)
if (!isxdigit(*cp)) {
(void)_ftprintf(stderr,
"ping: patterns must be specified as hex digits.\n");
MyExit(1);
}
ii = sscanf(patp,
"%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
&pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
&pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
&pat[13], &pat[14], &pat[15]);
if (ii > 0)
for (kk = 0;
kk <= MAXPACKET - (8 + sizeof(struct timeval) + ii);
kk += ii)
for (jj = 0; jj < ii; ++jj)
bp[jj + kk] = (u_char)pat[jj];
if (!(options & F_QUIET)) {
(void)printf("PATTERN: 0x");
for (jj = 0; jj < ii; ++jj)
(void)printf("%02x", bp[jj] & 0xFF);
(void)printf("\n");
}
}
#endif
void usage(void)
{
(void)_ftprintf(stderr,
_T("usage: ping [-Rdfnqrv] [-c count] [-i wait] [-l preload]\n\t[-p pattern] [-s packetsize] host\n"));
MyExit(1);
}
#if !UNIX
BOOL NewThread( void THREAD_LINKAGE ThreadFunction(THREAD_ARGUMENT),
THREAD_ARGUMENT ThreadArgument)
{
PIPROCESS pPrc;
SCODE Sc;
PITHREAD pThd;
/* create a new thread to invoke the signal handler after nsecs
*/
pPrc = CurrentProcess();
Sc = pPrc->v->CreateThread( pPrc, 0, ThreadFunction, ThreadArgument,
0, NULL, &pThd);
if (FAILED(Sc)) {
_ftprintf(stderr,_T("Could not create a thread (%x)\n"), Sc);
MyExit(1);
}
pThd->v->Release(pThd);
return TRUE;
}
void perror(char *msg)
{
UINT e = WSAGetLastError();
_ftprintf(stderr, _T("%hs error x%x\n"), msg, e);
}
char *_itot( _TCHAR *s)
{
char *r = malloc(_tcslen(s) + 1);
char *p = r;
while (*s)
*p++ = (unsigned char)*s++;
*p = 0;
return r;
}
static struct {
SignalHandler Handler;
} SigTab[NSIG];
SignalHandler signal(UINT SigNo, SignalHandler Handler)
{
SignalHandler Old = SigTab[SigNo].Handler;
SigTab[SigNo].Handler = Handler;
return Old;
}
#define CTRL_C 3
static void THREAD_LINKAGE InputThread (THREAD_ARGUMENT Arg )
{
FILE *InFile = (FILE *)Arg;
INT ch;
for (;;) {
ch = fgetc(InFile);
if (ch != CTRL_C && ch != '.' && !Exiting)
continue;
_tprintf(_T("^C"));
if (SigTab[SIGINT].Handler == SIG_IGN)
ThreadExit();
else
SigTab[SIGINT].Handler();
}
}
static void THREAD_LINKAGE AlarmThread (THREAD_ARGUMENT Arg )
{
INT nSeconds = (UINT) Arg;
TIME t;
Int32ToInt64(t, TIME_RELATIVE(TIME_SECONDS(nSeconds)));
SleepUntil(t);
if (SigTab[SIGALRM].Handler)
SigTab[SIGALRM].Handler();
/* and we are done */
ThreadExit();
}
void alarm(UINT nSeconds)
{
if (!Exiting) {
(void) NewThread( AlarmThread, (THREAD_ARGUMENT) nSeconds );
}
}
void Etotv(TIME e, struct timeval *tv)
{
INT64 t;
tv->tv_sec = Int64ToInt32(Int64DividedByInt32(e, 10000000));
Int32ToInt64(t, tv->tv_sec);
t = Int64TimesInt32(t, 10000000);
t = Int64Subtract(e, t);
t = Int64DividedByInt32(t, 10);
tv->tv_usec = Int64ToInt32(t);
}
TIME tvtoE( struct timeval *tv)
{
TIME t;
TIME t2;
Int32ToInt64(t, tv->tv_sec);
Int32ToInt64(t2, tv->tv_sec);
t2 = Int64TimesInt32(t2, 10);
t = Int64TimesInt32(t, 10000000);
t = Int64Add(t, t2);
return t;
}
void gettimeofday(struct timeval *now, struct timezone *zone)
{
UnusedParameter(zone);
Etotv(CurrentTime(),now);
}
#endif
