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windows-nt-4.0/private/net/sockets/testutil/echoipx/echoipx.c

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/*++
Copyright (c) 1992 Microsoft Corporation
Module Name:
EchoIpx.c
Abstract:
A simple Spx and echo client and discard client.
Author:
David Treadwell (davidtr) 7-May-1993
Revision History:
--*/
#define FD_SETSIZE 1000
#include <stdio.h>
#include <stdlib.h>
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <winsock.h>
#include <wsipx.h>
#include <wsnwlink.h>
#define SPX_ECHO_PORT 7
#define IPX_ECHO_PORT 7
#define SPX_DISCARD_PORT 9
#define IPX_DISCARD_PORT 9
#define SPX_DAYTIME_PORT 13
#define IPX_DAYTIME_PORT 13
#define SPX_CHARGEN_PORT 19
#define IPX_CHARGEN_PORT 19
#define SPX_TIME_PORT 37
#define IPX_TIME_PORT 37
#define DEFAULT_TRANSFER_SIZE 512
#define DEFAULT_TRANSFER_COUNT 0x7FFFFFFF
#define DEFAULT_CONNECTION_COUNT 1
#define DEFAULT_DELAY 1000
WSADATA WsaData;
CHAR RemoteNodeNumber[6];
DWORD RemoteNetNumber = 0;
BOOLEAN Ipx = TRUE;
BOOLEAN Discard = FALSE;
BOOLEAN Echo = TRUE;
BOOLEAN Chargen = FALSE;
BOOLEAN Daytime = FALSE;
BOOLEAN Netcon = FALSE;
DWORD TransferSize = DEFAULT_TRANSFER_SIZE;
DWORD TransferCount = DEFAULT_TRANSFER_COUNT;
PCHAR IoBuffer;
BOOLEAN Random = FALSE;
BOOLEAN Quiet = FALSE;
BOOLEAN Drain = FALSE;
DWORD RepeatCount = 1;
u_short LingerTimeout = 60;
BOOLEAN Linger = FALSE;
DWORD ConnectionCount = DEFAULT_CONNECTION_COUNT;
DWORD Delay = DEFAULT_DELAY;
BOOLEAN NonBlockingIo = FALSE;
typedef struct _CONNECTION_INFO {
SOCKET Socket;
DWORD BytesSent;
DWORD BytesReceived;
} CONNECTION_INFO, *PCONNECTION_INFO;
VOID
DoChargen (
VOID
);
VOID
DoDaytime (
VOID
);
VOID
DoDiscard (
VOID
);
VOID
DoEcho (
VOID
);
VOID
DoNetcon (
VOID
);
void _CRTAPI1
main (
int argc,
char *argv[]
)
{
INT err;
DWORD i, j;
PHOSTENT host;
err = WSAStartup( 0x0101, &WsaData );
if ( err == SOCKET_ERROR ) {
printf( "WSAStartup() failed: %ld\n", GetLastError( ) );
return;
}
for ( i = 1; i < (ULONG)argc != 0; i++ ) {
if ( _stricmp( argv[i], "/spx" ) == 0 ) {
Ipx = FALSE;
} else if ( _stricmp( argv[i], "/ipx" ) == 0 ) {
Ipx = TRUE;
} else if (_strnicmp( argv[i], "/r:", 3 ) == 0 ) {
for ( j = 3; j < 15; j++ ) {
if ( argv[i][j] >= '0' && argv[i][j] <= '9' ) {
;
} else if ( argv[i][j] >= 'a' && argv[i][j] <= 'f' ) {
argv[i][j] = '0' + (argv[i][j] - 'a' + 10);
} else if ( argv[i][j] >= 'A' && argv[i][j] <= 'F' ) {
argv[i][j] = '0' + (argv[i][j] - 'F' + 10);
} else {
printf( "char %ld invalid in addr %s: '%c'\n",
j - 2, argv[i] + 3, argv[i][j] );
}
}
RemoteNodeNumber[0] = ((argv[i][3] - '0') << 4) + (argv[i][4] - '0');
RemoteNodeNumber[1] = ((argv[i][5] - '0') << 4) + (argv[i][6] - '0');
RemoteNodeNumber[2] = ((argv[i][7] - '0') << 4) + (argv[i][8] - '0');
RemoteNodeNumber[3] = ((argv[i][9] - '0') << 4) + (argv[i][10] - '0');
RemoteNodeNumber[4] = ((argv[i][11] - '0') << 4) + (argv[i][12] - '0');
RemoteNodeNumber[5] = ((argv[i][13] - '0') << 4) + (argv[i][14] - '0');
} else if (_strnicmp( argv[i], "/net:", 5 ) == 0 ) {
RemoteNetNumber = atoi( argv[i] + 6 );
} else if ( _stricmp( argv[i], "/discard" ) == 0 ) {
Discard = TRUE;
Echo = FALSE;
Chargen = FALSE;
Daytime = FALSE;
Netcon = FALSE;
} else if ( _stricmp( argv[i], "/daytime" ) == 0 ) {
Daytime = TRUE;
Echo = FALSE;
Chargen = FALSE;
Discard = FALSE;
Netcon = FALSE;
} else if ( _stricmp( argv[i], "/chargen" ) == 0 ) {
Chargen = TRUE;
Echo = FALSE;
Daytime = FALSE;
Discard = FALSE;
Netcon = FALSE;
} else if ( _stricmp( argv[i], "/echo" ) == 0 ) {
Chargen = FALSE;
Echo = TRUE;
Daytime = FALSE;
Discard = FALSE;
Netcon = FALSE;
} else if ( _stricmp( argv[i], "/netcon" ) == 0 ) {
Chargen = FALSE;
Echo = FALSE;
Daytime = FALSE;
Discard = FALSE;
Netcon = TRUE;
} else if ( _strnicmp( argv[i], "/size:", 6 ) == 0 ) {
TransferSize = atoi( argv[i] + 6 );
} else if ( _strnicmp( argv[i], "/count:", 7 ) == 0 ) {
TransferCount = atoi( argv[i] + 7 );
} else if ( _stricmp( argv[i], "/random" ) == 0 ) {
Random = TRUE;
} else if ( _stricmp( argv[i], "/quiet" ) == 0 ) {
Quiet = TRUE;
} else if ( _stricmp( argv[i], "/drain" ) == 0 ) {
Drain = TRUE;
} else if ( _strnicmp( argv[i], "/repeat:", 8 ) == 0 ) {
RepeatCount = atoi( argv[i] + 8 );
} else if ( _strnicmp( argv[i], "/linger:", 8 ) == 0 ) {
LingerTimeout = atoi( argv[i] + 8 );
Linger = TRUE;
} else if ( _stricmp( argv[i], "/linger" ) == 0 ) {
Linger = TRUE;
} else if ( _strnicmp( argv[i], "/conns:", 7 ) == 0 ) {
ConnectionCount = atoi( argv[i] + 7 );
} else if ( _strnicmp( argv[i], "/delay:", 7 ) == 0 ) {
Delay = atoi( argv[i] + 7 );
} else {
printf( "argument %s ignored\n", argv[i] );
}
}
IoBuffer = RtlAllocateHeap( RtlProcessHeap( ), 0, TransferSize );
if ( IoBuffer == NULL ) {
printf( "failed to allocate IO buffer.\n" );
return;
}
if ( Random ) {
srand( GetTickCount( ) );
}
for ( i = 0; i < RepeatCount; i++ ) {
printf( "\nStarting iteration #%ld of #%ld\n", i+1, RepeatCount );
if ( Echo ) {
DoEcho( );
}
if ( Discard ) {
DoDiscard( );
}
if ( Daytime ) {
DoDaytime( );
}
if ( Chargen ) {
DoChargen( );
}
if ( Netcon ) {
DoNetcon( );
}
}
} // main
VOID
DoEcho (
VOID
)
{
SOCKET s;
SOCKADDR_IPX remoteAddr;
INT err;
INT bytesReceived;
DWORD i;
DWORD startTime;
DWORD endTime;
DWORD transferStartTime;
DWORD transferEndTime;
DWORD totalTime;
DWORD thisTransferSize;
DWORD bytesTransferred = 0;
INT receiveFlags;
s = socket( AF_IPX, Ipx ? SOCK_DGRAM : SOCK_SEQPACKET, Ipx ? NSPROTO_IPX : NSPROTO_SPX );
if ( s == INVALID_SOCKET ) {
printf( "DoEcho: socket failed: %ld\n", GetLastError( ) );
}
if ( !Ipx && Linger ) {
LINGER lingerInfo;
lingerInfo.l_onoff = 1;
lingerInfo.l_linger = LingerTimeout;
err = setsockopt( s, SOL_SOCKET, SO_LINGER, (char *)&lingerInfo, sizeof(lingerInfo) );
if ( err == SOCKET_ERROR ) {
printf( "DoEcho: setsockopt( SO_LINGER ) failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
}
RtlZeroMemory( &remoteAddr, sizeof(remoteAddr) );
remoteAddr.sa_family = AF_IPX;
remoteAddr.sa_socket = Ipx ? htons( IPX_ECHO_PORT ) : htons( SPX_ECHO_PORT );
*(UNALIGNED PDWORD)remoteAddr.sa_netnum = RemoteNetNumber;
remoteAddr.sa_nodenum[0] = RemoteNodeNumber[0];
remoteAddr.sa_nodenum[1] = RemoteNodeNumber[1];
remoteAddr.sa_nodenum[2] = RemoteNodeNumber[2];
remoteAddr.sa_nodenum[3] = RemoteNodeNumber[3];
remoteAddr.sa_nodenum[4] = RemoteNodeNumber[4];
remoteAddr.sa_nodenum[5] = RemoteNodeNumber[5];
err = connect( s, (PSOCKADDR)&remoteAddr, sizeof(remoteAddr) );
if ( err == SOCKET_ERROR ) {
printf( "DoEcho: connect failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
if ( NonBlockingIo ) {
INT arg = 1;
err = ioctlsocket( s, FIONBIO, &arg );
if ( err == SOCKET_ERROR ) {
printf( "DoEcho: ioctlsocket( FIONBIO ) failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
}
startTime = GetTickCount( );
for ( i = 0; i < TransferCount; i++ ) {
if ( Random ) {
thisTransferSize = (rand( ) * TransferSize) / RAND_MAX;
} else {
thisTransferSize = TransferSize;
}
if ( !Quiet ) {
transferStartTime = GetTickCount( );
}
err = send( s, IoBuffer, thisTransferSize, 0 );
if ( err != thisTransferSize ) {
printf( "send didn't work, ret = %ld, error = %ld\n", err, GetLastError( ) );
closesocket( s );
return;
}
bytesReceived = 0;
do {
receiveFlags = 0;
err = WSARecvEx( s, IoBuffer, thisTransferSize, &receiveFlags );
if ( err < 0 ) {
printf( "recv failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
} else if ( err == 0 && thisTransferSize != 0 ) {
printf( "socket closed prematurely by remote.\n" );
return;
}
bytesReceived += err;
if ( bytesReceived < thisTransferSize &&
(receiveFlags & MSG_PARTIAL) == 0 ) {
printf( "incomplete WSARecvEx() without MSG_PARTIAL.\n" );
}
} while ( bytesReceived < thisTransferSize );
if ( !Quiet ) {
transferEndTime = GetTickCount( );
printf( "%5ld bytes sent and received in %ld ms\n",
thisTransferSize, transferEndTime - transferStartTime );
}
bytesTransferred += thisTransferSize;
}
endTime = GetTickCount( );
totalTime = endTime - startTime;
printf( "\n%ld bytes transferred in %ld iterations, time = %ld ms\n",
bytesTransferred, TransferCount, totalTime );
printf( "Rate = %ld KB/s, %ld ms/iteration\n",
(bytesTransferred / totalTime) * 2,
totalTime / TransferCount );
if ( Drain ) {
printf( "Draining... " );
err = shutdown( s, 1 );
if ( err == SOCKET_ERROR ) {
printf( "shutdown failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
bytesTransferred = 0;
do {
err = recv( s, IoBuffer, TransferSize, 0 );
if ( err > 0 ) {
bytesTransferred += err;
}
} while ( err > 0 );
if ( bytesTransferred != 0 ) {
printf( "received %ld extra bytes.\n", bytesTransferred );
}
if ( err < 0 ) {
printf( "draining recv failed: %ld\n", GetLastError( ) );
}
printf( "done.\n" );
}
err = closesocket( s );
if ( err == SOCKET_ERROR ) {
printf( "closesocket failed: %ld\n", GetLastError( ) );
return;
}
return;
} // DoEcho
VOID
DoDiscard (
VOID
)
{
SOCKET s;
SOCKADDR_IPX remoteAddr;
INT err;
DWORD i;
DWORD startTime;
DWORD endTime;
DWORD transferStartTime;
DWORD transferEndTime;
DWORD totalTime;
DWORD thisTransferSize;
DWORD bytesTransferred = 0;
s = socket( AF_IPX, Ipx ? SOCK_DGRAM : SOCK_STREAM, Ipx ? NSPROTO_IPX : NSPROTO_SPX );
if ( s == INVALID_SOCKET ) {
printf( "DoDiscard: socket failed: %ld\n", GetLastError( ) );
}
if ( !Ipx && Linger ) {
LINGER lingerInfo;
lingerInfo.l_onoff = 1;
lingerInfo.l_linger = LingerTimeout;
err = setsockopt( s, SOL_SOCKET, SO_LINGER, (char *)&lingerInfo, sizeof(lingerInfo) );
if ( err == SOCKET_ERROR ) {
printf( "DoEcho: setsockopt( SO_LINGER ) failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
}
RtlZeroMemory( &remoteAddr, sizeof(remoteAddr) );
remoteAddr.sa_family = AF_IPX;
remoteAddr.sa_socket = Ipx ? htons( IPX_DISCARD_PORT ) : htons( SPX_DISCARD_PORT );
*(PDWORD)remoteAddr.sa_netnum = RemoteNetNumber;
remoteAddr.sa_nodenum[0] = RemoteNodeNumber[0];
remoteAddr.sa_nodenum[1] = RemoteNodeNumber[1];
remoteAddr.sa_nodenum[2] = RemoteNodeNumber[2];
remoteAddr.sa_nodenum[3] = RemoteNodeNumber[3];
remoteAddr.sa_nodenum[4] = RemoteNodeNumber[4];
remoteAddr.sa_nodenum[5] = RemoteNodeNumber[5];
err = connect( s, (PSOCKADDR)&remoteAddr, sizeof(remoteAddr) );
if ( err == SOCKET_ERROR ) {
printf( "DoDiscard: connect failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
startTime = GetTickCount( );
for ( i = 0; i < TransferCount; i++ ) {
if ( Random ) {
thisTransferSize = (rand( ) * TransferSize) / RAND_MAX;
} else {
thisTransferSize = TransferSize;
}
if ( !Quiet ) {
transferStartTime = GetTickCount( );
}
err = send( s, IoBuffer, thisTransferSize, 0 );
if ( err != thisTransferSize ) {
printf( "send didn't work, ret = %ld, error = %ld\n", err, GetLastError( ) );
closesocket( s );
return;
}
if ( !Quiet ) {
transferEndTime = GetTickCount( );
printf( "%5ld bytes sent in %ld ms\n",
thisTransferSize, transferEndTime - transferStartTime );
}
bytesTransferred += thisTransferSize;
}
endTime = GetTickCount( );
totalTime = endTime - startTime;
printf( "\n%ld bytes transferred in %ld iterations, time = %ld ms\n",
bytesTransferred, TransferCount, totalTime );
printf( "Rate = %ld KB/s, %ld ms/iteration\n",
bytesTransferred / totalTime,
totalTime / TransferCount );
err = closesocket( s );
if ( err == SOCKET_ERROR ) {
printf( "closesocket failed: %ld\n", GetLastError( ) );
return;
}
return;
} // DoDiscard
VOID
DoDaytime (
VOID
)
{
SOCKET s;
SOCKADDR_IPX remoteAddr;
INT err;
DWORD i;
s = socket( AF_IPX, Ipx ? SOCK_DGRAM : SOCK_STREAM, Ipx ? NSPROTO_IPX : NSPROTO_SPX );
if ( s == INVALID_SOCKET ) {
printf( "DoDaytime: socket failed: %ld\n", GetLastError( ) );
}
RtlZeroMemory( &remoteAddr, sizeof(remoteAddr) );
remoteAddr.sa_family = AF_IPX;
remoteAddr.sa_socket = Ipx ? htons( IPX_DAYTIME_PORT ) : htons( SPX_DAYTIME_PORT );
*(PDWORD)remoteAddr.sa_netnum = RemoteNetNumber;
remoteAddr.sa_nodenum[0] = RemoteNodeNumber[0];
remoteAddr.sa_nodenum[1] = RemoteNodeNumber[1];
remoteAddr.sa_nodenum[2] = RemoteNodeNumber[2];
remoteAddr.sa_nodenum[3] = RemoteNodeNumber[3];
remoteAddr.sa_nodenum[4] = RemoteNodeNumber[4];
remoteAddr.sa_nodenum[5] = RemoteNodeNumber[5];
err = connect( s, (PSOCKADDR)&remoteAddr, sizeof(remoteAddr) );
if ( err == SOCKET_ERROR ) {
printf( "DoDaytime: connect failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
if ( Ipx ) {
err = send( s, IoBuffer, TransferSize, 0 );
if ( err != TransferSize ) {
printf( "send didn't work, ret = %ld, error = %ld\n", err, GetLastError( ) );
closesocket( s );
return;
}
}
err = recv( s, IoBuffer, TransferSize, 0 );
if ( err == SOCKET_ERROR ) {
printf( "recv failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
*(IoBuffer + err) = '\0';
printf( "%s\n", IoBuffer );
err = closesocket( s );
if ( err == SOCKET_ERROR ) {
printf( "closesocket failed: %ld\n", GetLastError( ) );
return;
}
return;
} // DoDaytime
VOID
DoChargen (
VOID
)
{
SOCKET s;
SOCKADDR_IPX remoteAddr;
INT err;
DWORD i;
DWORD startTime;
DWORD endTime;
DWORD transferStartTime;
DWORD transferEndTime;
DWORD totalTime;
DWORD thisTransferSize;
DWORD bytesTransferred = 0;
s = socket( AF_IPX, Ipx ? SOCK_DGRAM : SOCK_STREAM, Ipx ? NSPROTO_IPX : NSPROTO_SPX );
if ( s == INVALID_SOCKET ) {
printf( "DoChargen: socket failed: %ld\n", GetLastError( ) );
}
if ( !Ipx && Linger ) {
LINGER lingerInfo;
lingerInfo.l_onoff = 1;
lingerInfo.l_linger = LingerTimeout;
err = setsockopt( s, SOL_SOCKET, SO_LINGER, (char *)&lingerInfo, sizeof(lingerInfo) );
if ( err == SOCKET_ERROR ) {
printf( "DoEcho: setsockopt( SO_LINGER ) failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
}
RtlZeroMemory( &remoteAddr, sizeof(remoteAddr) );
remoteAddr.sa_family = AF_IPX;
remoteAddr.sa_socket = Ipx ? htons( IPX_CHARGEN_PORT ) : htons( SPX_CHARGEN_PORT );
*(PDWORD)remoteAddr.sa_netnum = RemoteNetNumber;
remoteAddr.sa_nodenum[0] = RemoteNodeNumber[0];
remoteAddr.sa_nodenum[1] = RemoteNodeNumber[1];
remoteAddr.sa_nodenum[2] = RemoteNodeNumber[2];
remoteAddr.sa_nodenum[3] = RemoteNodeNumber[3];
remoteAddr.sa_nodenum[4] = RemoteNodeNumber[4];
remoteAddr.sa_nodenum[5] = RemoteNodeNumber[5];
err = connect( s, (PSOCKADDR)&remoteAddr, sizeof(remoteAddr) );
if ( err == SOCKET_ERROR ) {
printf( "DoChargen: connect failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
startTime = GetTickCount( );
for ( i = 0; i < TransferCount; i++ ) {
if ( Random ) {
thisTransferSize = (rand( ) * TransferSize) / RAND_MAX;
} else {
thisTransferSize = TransferSize;
}
if ( !Quiet ) {
transferStartTime = GetTickCount( );
}
if ( Ipx ) {
err = send( s, IoBuffer, thisTransferSize, 0 );
if ( err != thisTransferSize ) {
printf( "send didn't work, ret = %ld, error = %ld\n", err, GetLastError( ) );
closesocket( s );
return;
}
}
err = recv( s, IoBuffer, thisTransferSize, 0 );
if ( err == SOCKET_ERROR ) {
printf( "recv failed: %ld\n", GetLastError( ) );
shutdown( s, 2 );
closesocket( s );
return;
}
bytesTransferred += err;
if ( !Quiet ) {
transferEndTime = GetTickCount( );
printf( "%5ld bytes received in %ld ms\n",
thisTransferSize, transferEndTime - transferStartTime );
}
}
endTime = GetTickCount( );
totalTime = endTime - startTime;
printf( "\n%ld bytes transferred in %ld iterations, time = %ld ms\n",
bytesTransferred, TransferCount, totalTime );
printf( "Rate = %ld KB/s, %ld ms/iteration\n",
bytesTransferred / totalTime,
totalTime / TransferCount );
if ( Drain ) {
printf( "Draining... " );
err = shutdown( s, 1 );
if ( err == SOCKET_ERROR ) {
printf( "DoChargen: shutdown failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
do {
err = recv( s, IoBuffer, TransferSize, 0 );
} while ( err > 0 );
if ( err != 0 ) {
printf( "DoChargen: recv failed: %ld\n", GetLastError( ) );
closesocket( s );
return;
}
printf( "done.\n" );
} else {
err = shutdown( s, 2 );
if ( err == SOCKET_ERROR ) {
printf( "DoChargen: shutdown failed: %ld\n", GetLastError( ) );
return;
}
}
err = closesocket( s );
if ( err == SOCKET_ERROR ) {
printf( "DoChargen: closesocket failed: %ld\n", GetLastError( ) );
return;
}
return;
} // DoChargen
VOID
DoNetcon (
VOID
)
{
PCONNECTION_INFO connInfo;
DWORD i;
INT err;
INT thisTransferSize;
INT bytesReceived;
SOCKADDR_IPX remoteAddr;
DWORD iterations = 0;
connInfo = RtlAllocateHeap(
RtlProcessHeap( ),
0,
sizeof(*connInfo) * ConnectionCount
);
if ( connInfo == NULL ) {
printf( "DoNetcon: failed to allocate connInfo structure.\n" );
}
for ( i = 0; i < ConnectionCount; i++ ) {
connInfo[i].Socket = socket( AF_IPX, SOCK_STREAM, NSPROTO_SPX );
if ( connInfo[i].Socket == INVALID_SOCKET ) {
printf( "DoNetcon: failed to open socket %ld, err %ld\n",
i, GetLastError( ) );
return;
}
RtlZeroMemory( &remoteAddr, sizeof(remoteAddr) );
remoteAddr.sa_family = AF_IPX;
remoteAddr.sa_socket = Ipx ? htons( IPX_ECHO_PORT ) : htons( SPX_ECHO_PORT );
*(PDWORD)remoteAddr.sa_netnum = RemoteNetNumber;
remoteAddr.sa_nodenum[0] = RemoteNodeNumber[0];
remoteAddr.sa_nodenum[1] = RemoteNodeNumber[1];
remoteAddr.sa_nodenum[2] = RemoteNodeNumber[2];
remoteAddr.sa_nodenum[3] = RemoteNodeNumber[3];
remoteAddr.sa_nodenum[4] = RemoteNodeNumber[4];
remoteAddr.sa_nodenum[5] = RemoteNodeNumber[5];
printf( "Connecting #%ld...\n", i+1 );
err = connect( connInfo[i].Socket, (PSOCKADDR)&remoteAddr, sizeof(remoteAddr) );
if ( err == SOCKET_ERROR ) {
printf( "DoNetcon: connect on socket %ld failed: %ld\n",
i, GetLastError( ) );
return;
}
}
while ( TRUE ) {
iterations++;
printf( "starting iteration #%ld\n", iterations );
for ( i = 0; i < ConnectionCount; i++ ) {
if ( Random ) {
thisTransferSize = (rand( ) * TransferSize) / RAND_MAX;
} else {
thisTransferSize = TransferSize;
}
err = send( connInfo[i].Socket, IoBuffer, thisTransferSize, 0 );
if ( err != thisTransferSize ) {
printf( "send on #%ld failed, ret = %ld, error = %ld\n",
i, err, GetLastError( ) );
}
bytesReceived = 0;
do {
err = recv( connInfo[i].Socket, IoBuffer, thisTransferSize, 0 );
if ( err == SOCKET_ERROR ) {
printf( "recv on #%ld failed: %ld\n", i, GetLastError( ) );
bytesReceived = thisTransferSize;
} else if ( err == 0 && thisTransferSize != 0 ) {
printf( "socket #%ld closed prematurely by remote.\n", i );
bytesReceived = thisTransferSize;
} else {
bytesReceived += err;
}
} while ( bytesReceived < thisTransferSize );
}
Sleep( Delay );
}
} // DoNetcon