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reactos/rosapps/net/ping/ping.c
Steven Edwards f355097ad2 Updates for move of net apps to rosapps 
svn path=/trunk/; revision=2445
2001-12-30 04:12:47 +00:00

629 lines
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/* $Id: ping.c,v 1.1 2001/12/30 04:09:38 sedwards Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS ping utility
* FILE: apps/net/ping/ping.c
* PURPOSE: Network test utility
* PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
* REVISIONS:
* CSH 01/09/2000 Created
*/
#include <winsock2.h>
#include <tchar.h>
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#ifndef _MSC_VER
//#define DBG
/* FIXME: Where should this be? */
#define CopyMemory(Destination, Source, Length) memcpy(Destination, Source, Length);
/* Should be in the header files somewhere (exported by ntdll.dll) */
long atol(const char *str);
#ifndef __int64
typedef long long __int64;
#endif
char * _i64toa(__int64 value, char *string, int radix);
#endif
/* General ICMP constants */
#define ICMP_MINSIZE 8 /* Minimum ICMP packet size */
#define ICMP_MAXSIZE 65535 /* Maximum ICMP packet size */
/* ICMP message types */
#define ICMPMSG_ECHOREQUEST 8 /* ICMP ECHO request message */
#define ICMPMSG_ECHOREPLY 0 /* ICMP ECHO reply message */
#pragma pack(4)
/* IPv4 header structure */
typedef struct _IPv4_HEADER {
unsigned char IHL:4;
unsigned char Version:4;
unsigned char TOS;
unsigned short Length;
unsigned short Id;
unsigned short FragFlags;
unsigned char TTL;
unsigned char Protocol;
unsigned short Checksum;
unsigned int SrcAddress;
unsigned int DstAddress;
} IPv4_HEADER, *PIPv4_HEADER;
/* ICMP echo request/reply header structure */
typedef struct _ICMP_HEADER {
unsigned char Type;
unsigned char Code;
unsigned short Checksum;
unsigned short Id;
unsigned short SeqNum;
} ICMP_HEADER, *PICMP_HEADER;
typedef struct _ICMP_ECHO_PACKET {
ICMP_HEADER Icmp;
LARGE_INTEGER Timestamp;
} ICMP_ECHO_PACKET, *PICMP_ECHO_PACKET;
#pragma pack(1)
BOOL InvalidOption;
BOOL NeverStop;
BOOL ResolveAddresses;
UINT PingCount;
UINT DataSize; /* ICMP echo request data size */
BOOL DontFragment;
ULONG TTLValue;
ULONG TOSValue;
ULONG Timeout;
CHAR TargetName[256];
SOCKET IcmpSock;
SOCKADDR_IN Target;
LPSTR TargetIP;
FD_SET Fds;
TIMEVAL Timeval;
UINT CurrentSeqNum;
UINT SentCount;
UINT LostCount;
BOOL MinRTTSet;
LARGE_INTEGER MinRTT; /* Minimum round trip time in microseconds */
LARGE_INTEGER MaxRTT;
LARGE_INTEGER SumRTT;
LARGE_INTEGER AvgRTT;
LARGE_INTEGER TicksPerMs; /* Ticks per millisecond */
LARGE_INTEGER TicksPerUs; /* Ticks per microsecond */
BOOL UsePerformanceCounter;
/* Display the contents of a buffer */
VOID DisplayBuffer(
PVOID Buffer,
DWORD Size)
{
UINT i;
PCHAR p;
printf("Buffer (0x%X) Size (0x%X).\n", Buffer, Size);
p = (PCHAR)Buffer;
for (i = 0; i < Size; i++) {
if (i % 16 == 0) {
printf("\n");
}
printf("%02X ", (p[i]) & 0xFF);
}
}
/* Display usage information on screen */
VOID Usage(VOID)
{
printf("\nUsage: ping [-t] [-n count] [-l size] [-w timeout] destination-host\n\n");
printf("Options:\n");
printf(" -t Ping the specified host until stopped.\n");
printf(" To stop - type Control-C.\n");
printf(" -n count Number of echo requests to send.\n");
printf(" -l size Send buffer size.\n");
printf(" -w timeout Timeout in milliseconds to wait for each reply.\n\n");
}
/* Reset configuration to default values */
VOID Reset(VOID)
{
LARGE_INTEGER PerformanceCounterFrequency;
NeverStop = FALSE;
ResolveAddresses = FALSE;
PingCount = 4;
DataSize = 32;
DontFragment = FALSE;
TTLValue = 128;
TOSValue = 0;
Timeout = 1000;
UsePerformanceCounter = QueryPerformanceFrequency(&PerformanceCounterFrequency);
if (UsePerformanceCounter) {
/* Performance counters may return incorrect results on some multiprocessor
platforms so we restrict execution on the first processor. This may fail
on Windows NT so we fall back to GetCurrentTick() for timing */
if (SetThreadAffinityMask (GetCurrentThread(), 1) == 0) {
UsePerformanceCounter = FALSE;
}
/* Convert frequency to ticks per millisecond */
TicksPerMs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000;
/* And to ticks per microsecond */
TicksPerUs.QuadPart = PerformanceCounterFrequency.QuadPart / 1000000;
}
if (!UsePerformanceCounter) {
/* 1 tick per millisecond for GetCurrentTick() */
TicksPerMs.QuadPart = 1;
/* GetCurrentTick() cannot handle microseconds */
TicksPerUs.QuadPart = 1;
}
}
/* Return ULONG in a string */
ULONG GetULONG(LPSTR String)
{
UINT i, Length;
ULONG Value;
i = 0;
Length = strlen(String);
while ((i < Length) && ((String[i] < '0') || (String[i] > '9'))) i++;
if ((i >= Length) || ((String[i] < '0') || (String[i] > '9'))) {
InvalidOption = TRUE;
return 0;
}
Value = (ULONG)atol(&String[i]);
return Value;
}
/* Return ULONG in a string. Try next paramter if not successful */
ULONG GetULONG2(LPSTR String1, LPSTR String2, PINT i)
{
ULONG Value;
Value = GetULONG(String1);
if (InvalidOption) {
InvalidOption = FALSE;
if (String2[0] != '-') {
Value = GetULONG(String2);
if (!InvalidOption)
*i += 1;
}
}
return Value;
}
/* Parse command line parameters */
BOOL ParseCmdline(int argc, char* argv[])
{
INT i;
BOOL ShowUsage;
BOOL FoundTarget;
#if 1
lstrcpy(TargetName, "127.0.0.1");
PingCount = 1;
return TRUE;
#endif
if (argc < 2) {
ShowUsage = TRUE;
} else {
ShowUsage = FALSE;
}
FoundTarget = FALSE;
InvalidOption = FALSE;
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 't': NeverStop = TRUE; break;
case 'a': ResolveAddresses = TRUE; break;
case 'n': PingCount = GetULONG2(&argv[i][2], argv[i + 1], &i); break;
case 'l':
DataSize = GetULONG2(&argv[i][2], argv[i + 1], &i);
if ((DataSize < 0) || (DataSize > ICMP_MAXSIZE - sizeof(ICMP_ECHO_PACKET))) {
printf("Bad value for option -l, valid range is from 0 to %d.\n",
ICMP_MAXSIZE - sizeof(ICMP_ECHO_PACKET));
return FALSE;
}
break;
case 'f': DontFragment = TRUE; break;
case 'i': TTLValue = GetULONG2(&argv[i][2], argv[i + 1], &i); break;
case 'v': TOSValue = GetULONG2(&argv[i][2], argv[i + 1], &i); break;
case 'w': Timeout = GetULONG2(&argv[i][2], argv[i + 1], &i); break;
default:
printf("Bad option %s.\n", argv[i]);
Usage();
return FALSE;
}
if (InvalidOption) {
printf("Bad option format %s.\n", argv[i]);
return FALSE;
}
} else {
if (FoundTarget) {
printf("Bad parameter %s.\n", argv[i]);
return FALSE;
} else {
lstrcpy(TargetName, argv[i]);
FoundTarget = TRUE;
}
}
}
if ((!ShowUsage) && (!FoundTarget)) {
printf("Name or IP address of destination host must be specified.\n");
return FALSE;
}
if (ShowUsage) {
Usage();
return FALSE;
}
return TRUE;
}
/* Calculate checksum of data */
WORD Checksum(PUSHORT data, UINT size)
{
ULONG sum = 0;
while (size > 1) {
sum += *data++;
size -= sizeof(USHORT);
}
if (size)
sum += *(UCHAR*)data;
sum = (sum >> 16) + (sum & 0xFFFF);
sum += (sum >> 16);
return (USHORT)(~sum);
}
/* Prepare to ping target */
BOOL Setup(VOID)
{
WORD wVersionRequested;
WSADATA WsaData;
INT Status;
ULONG Addr;
PHOSTENT phe;
wVersionRequested = MAKEWORD(2, 2);
Status = WSAStartup(wVersionRequested, &WsaData);
if (Status != 0) {
printf("Could not initialize winsock dll.\n");
return FALSE;
}
IcmpSock = WSASocket(AF_INET, SOCK_RAW, IPPROTO_ICMP, NULL, 0, 0);
if (IcmpSock == INVALID_SOCKET) {
printf("Could not create socket (#%d).\n", WSAGetLastError());
return FALSE;
}
ZeroMemory(&Target, sizeof(Target));
phe = NULL;
Addr = inet_addr(TargetName);
if (Addr == INADDR_NONE) {
phe = gethostbyname(TargetName);
if (phe == NULL) {
printf("Unknown host %s.\n", TargetName);
return FALSE;
}
}
if (phe != NULL) {
CopyMemory(&Target.sin_addr, phe->h_addr_list, phe->h_length);
} else {
Target.sin_addr.s_addr = Addr;
}
if (phe != NULL) {
Target.sin_family = phe->h_addrtype;
} else {
Target.sin_family = AF_INET;
}
TargetIP = inet_ntoa(Target.sin_addr);
CurrentSeqNum = 0;
SentCount = 0;
LostCount = 0;
MinRTT.QuadPart = 0;
MaxRTT.QuadPart = 0;
SumRTT.QuadPart = 0;
MinRTTSet = FALSE;
return TRUE;
}
/* Close socket */
VOID Cleanup(VOID)
{
if (IcmpSock != INVALID_SOCKET)
closesocket(IcmpSock);
WSACleanup();
}
VOID QueryTime(PLARGE_INTEGER Time)
{
if (UsePerformanceCounter) {
if (QueryPerformanceCounter(Time) == 0) {
/* This should not happen, but we fall
back to GetCurrentTick() if it does */
Time->u.LowPart = (ULONG)GetTickCount();
Time->u.HighPart = 0;
/* 1 tick per millisecond for GetCurrentTick() */
TicksPerMs.QuadPart = 1;
/* GetCurrentTick() cannot handle microseconds */
TicksPerUs.QuadPart = 1;
UsePerformanceCounter = FALSE;
}
} else {
Time->u.LowPart = (ULONG)GetTickCount();
Time->u.HighPart = 0;
}
}
VOID TimeToMsString(LPSTR String, LARGE_INTEGER Time)
{
UINT i, Length;
CHAR Convstr[40];
LARGE_INTEGER LargeTime;
LargeTime.QuadPart = Time.QuadPart / TicksPerMs.QuadPart;
_i64toa(LargeTime.QuadPart, Convstr, 10);
strcpy(String, Convstr);
strcat(String, ",");
LargeTime.QuadPart = (Time.QuadPart % TicksPerMs.QuadPart) / TicksPerUs.QuadPart;
_i64toa(LargeTime.QuadPart, Convstr, 10);
Length = strlen(Convstr);
if (Length < 4) {
for (i = 0; i < 4 - Length; i++)
strcat(String, "0");
}
strcat(String, Convstr);
strcat(String, "ms");
}
/* Locate the ICMP data and print it. Returns TRUE if the packet was good,
FALSE if not */
BOOL DecodeResponse(PCHAR buffer, UINT size, PSOCKADDR_IN from)
{
PIPv4_HEADER IpHeader;
PICMP_ECHO_PACKET Icmp;
UINT IphLength;
CHAR Time[100];
LARGE_INTEGER RelativeTime;
LARGE_INTEGER LargeTime;
IpHeader = (PIPv4_HEADER)buffer;
IphLength = IpHeader->IHL * 4;
if (size < IphLength + ICMP_MINSIZE) {
#ifdef DBG
printf("Bad size (0x%X < 0x%X)\n", size, IphLength + ICMP_MINSIZE);
#endif DBG
return FALSE;
}
Icmp = (PICMP_ECHO_PACKET)(buffer + IphLength);
if (Icmp->Icmp.Type != ICMPMSG_ECHOREPLY) {
#ifdef DBG
printf("Bad ICMP type (0x%X should be 0x%X)\n", Icmp->Icmp.Type, ICMPMSG_ECHOREPLY);
#endif DBG
return FALSE;
}
if (Icmp->Icmp.Id != (USHORT)GetCurrentProcessId()) {
#ifdef DBG
printf("Bad ICMP id (0x%X should be 0x%X)\n", Icmp->Icmp.Id, (USHORT)GetCurrentProcessId());
#endif DBG
return FALSE;
}
QueryTime(&LargeTime);
RelativeTime.QuadPart = (LargeTime.QuadPart - Icmp->Timestamp.QuadPart);
TimeToMsString(Time, RelativeTime);
printf("Reply from %s: bytes=%d time=%s TTL=%d\n", inet_ntoa(from->sin_addr),
size - IphLength - sizeof(ICMP_ECHO_PACKET), Time, IpHeader->TTL);
if (RelativeTime.QuadPart < MinRTT.QuadPart) {
MinRTT.QuadPart = RelativeTime.QuadPart;
MinRTTSet = TRUE;
}
if (RelativeTime.QuadPart > MaxRTT.QuadPart)
MaxRTT.QuadPart = RelativeTime.QuadPart;
SumRTT.QuadPart += RelativeTime.QuadPart;
return TRUE;
}
/* Send and receive one ping */
BOOL Ping(VOID)
{
INT Status;
SOCKADDR From;
UINT Length;
PVOID Buffer;
UINT Size;
PICMP_ECHO_PACKET Packet;
/* Account for extra space for IP header when packet is received */
Size = DataSize + 128;
Buffer = GlobalAlloc(0, Size);
if (!Buffer) {
printf("Not enough free resources available.\n");
return FALSE;
}
ZeroMemory(Buffer, Size);
Packet = (PICMP_ECHO_PACKET)Buffer;
/* Assemble ICMP echo request packet */
Packet->Icmp.Type = ICMPMSG_ECHOREQUEST;
Packet->Icmp.Code = 0;
Packet->Icmp.Id = (USHORT)GetCurrentProcessId();
Packet->Icmp.SeqNum = (USHORT)CurrentSeqNum;
Packet->Icmp.Checksum = 0;
/* Timestamp is part of data area */
QueryTime(&Packet->Timestamp);
CopyMemory(Buffer, &Packet->Icmp, sizeof(ICMP_ECHO_PACKET) + DataSize);
/* Calculate checksum for ICMP header and data area */
Packet->Icmp.Checksum = Checksum((PUSHORT)&Packet->Icmp, sizeof(ICMP_ECHO_PACKET) + DataSize);
CurrentSeqNum++;
/* Send ICMP echo request */
FD_ZERO(&Fds);
FD_SET(IcmpSock, &Fds);
Timeval.tv_sec = Timeout / 1000;
Timeval.tv_usec = Timeout % 1000;
Status = select(0, NULL, &Fds, NULL, &Timeval);
if ((Status != SOCKET_ERROR) && (Status != 0)) {
#ifdef DBG
printf("Sending packet\n");
DisplayBuffer(Buffer, sizeof(ICMP_ECHO_PACKET) + DataSize);
printf("\n");
#endif DBG
Status = sendto(IcmpSock, Buffer, sizeof(ICMP_ECHO_PACKET) + DataSize,
0, (SOCKADDR*)&Target, sizeof(Target));
SentCount++;
}
if (Status == SOCKET_ERROR) {
if (WSAGetLastError() == WSAEHOSTUNREACH) {
printf("Destination host unreachable.\n");
} else {
printf("Could not transmit data (%d).\n", WSAGetLastError());
}
GlobalFree(Buffer);
return FALSE;
}
/* Expect to receive ICMP echo reply */
FD_ZERO(&Fds);
FD_SET(IcmpSock, &Fds);
Timeval.tv_sec = Timeout / 1000;
Timeval.tv_usec = Timeout % 1000;
Status = select(0, &Fds, NULL, NULL, &Timeval);
if ((Status != SOCKET_ERROR) && (Status != 0)) {
Length = sizeof(From);
Status = recvfrom(IcmpSock, Buffer, Size, 0, &From, &Length);
#ifdef DBG
printf("Received packet\n");
DisplayBuffer(Buffer, Status);
printf("\n");
#endif DBG
}
if (Status == SOCKET_ERROR) {
if (WSAGetLastError() != WSAETIMEDOUT) {
printf("Could not receive data (%d).\n", WSAGetLastError());
GlobalFree(Buffer);
return FALSE;
}
Status = 0;
}
if (Status == 0) {
printf("Request timed out.\n");
LostCount++;
GlobalFree(Buffer);
return TRUE;
}
if (!DecodeResponse(Buffer, Status, (PSOCKADDR_IN)&From)) {
/* FIXME: Wait again as it could be another ICMP message type */
printf("Request timed out (incomplete datagram received).\n");
LostCount++;
}
GlobalFree(Buffer);
return TRUE;
}
/* Program entry point */
int main(int argc, char* argv[])
{
UINT Count;
CHAR MinTime[20];
CHAR MaxTime[20];
CHAR AvgTime[20];
Reset();
if ((ParseCmdline(argc, argv)) && (Setup())) {
printf("\nPinging %s [%s] with %d bytes of data:\n\n",
TargetName, TargetIP, DataSize);
Count = 0;
while ((NeverStop) || (Count < PingCount)) {
Ping();
Sleep(Timeout);
Count++;
};
Cleanup();
/* Calculate avarage round trip time */
if ((SentCount - LostCount) > 0) {
AvgRTT.QuadPart = SumRTT.QuadPart / (SentCount - LostCount);
} else {
AvgRTT.QuadPart = 0;
}
/* Calculate loss percent */
if (LostCount > 0) {
Count = (SentCount * 100) / LostCount;
} else {
Count = 0;
}
if (!MinRTTSet)
MinRTT = MaxRTT;
TimeToMsString(MinTime, MinRTT);
TimeToMsString(MaxTime, MaxRTT);
TimeToMsString(AvgTime, AvgRTT);
/* Print statistics */
printf("\nPing statistics for %s:\n", TargetIP);
printf(" Packets: Sent = %d, Received = %d, Lost = %d (%d%% loss),\n",
SentCount, SentCount - LostCount, LostCount, Count);
printf("Approximate round trip times in milli-seconds:\n");
printf(" Minimum = %s, Maximum = %s, Average = %s\n",
MinTime, MaxTime, AvgTime);
}
return 0;
}
/* EOF */
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