mirror of https://github.com/lianthony/NT4.0
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1306 lines
41 KiB
1306 lines
41 KiB
/*
|
|
* T T C P . C
|
|
*
|
|
* Test TCP connection. Makes a connection on port 5001
|
|
* and transfers fabricated buffers or data copied from stdin.
|
|
*
|
|
* Usable on 4.2, 4.3, and 4.1a systems by defining one of
|
|
* BSD42 BSD43 (BSD41a)
|
|
* Machines using System V with BSD sockets should define SYSV.
|
|
*
|
|
* Modified for operation under 4.2BSD, 18 Dec 84
|
|
* T.C. Slattery, USNA
|
|
* Minor improvements, Mike Muuss and Terry Slattery, 16-Oct-85.
|
|
* Modified in 1989 at Silicon Graphics, Inc.
|
|
* catch SIGPIPE to be able to print stats when receiver has died
|
|
* for tcp, don't look for sentinel during reads to allow small transfers
|
|
* increased default buffer size to 8K, nbuf to 2K to transfer 16MB
|
|
* moved default port to 5001, beyond IPPORT_USERRESERVED
|
|
* make sinkmode default because it is more popular,
|
|
* -s now means don't sink/source
|
|
* count number of _read/_write system calls to see effects of
|
|
* blocking from full socket buffers
|
|
* for tcp, -D option turns off buffered writes (sets SO_NODELAY sockopt)
|
|
* buffer alignment options, -A and -O
|
|
* print stats in a format that's a bit easier to use with grep & awk
|
|
* for SYSV, mimic BSD routines to use most of the existing timing code
|
|
*
|
|
* Distribution Status -
|
|
* Public Domain. Distribution Unlimited.
|
|
*/
|
|
#ifndef lint
|
|
static char RCSid[] = "ttcp.c $Revision: 1.4 $";
|
|
#endif
|
|
|
|
#define BSD43
|
|
/* #define BSD42 */
|
|
/* #define BSD41a */
|
|
#if defined(sgi) || defined(CRAY)
|
|
#define SYSV
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#ifndef WIN16
|
|
#include <nt.h>
|
|
#include <ntrtl.h>
|
|
#include <nturtl.h>
|
|
#endif
|
|
#include <windows.h>
|
|
#include <io.h>
|
|
#include <signal.h>
|
|
#include <ctype.h>
|
|
#include <sys/types.h>
|
|
#include <winsock.h>
|
|
|
|
#if defined(SYSV)
|
|
#include <sys/times.h>
|
|
#include <sys/param.h>
|
|
struct rusage {
|
|
struct timeval ru_utime, ru_stime;
|
|
};
|
|
#define RUSAGE_SELF 0
|
|
#else
|
|
#endif
|
|
|
|
#ifdef WIN16
|
|
#define INT int
|
|
#define _CRTAPI1
|
|
#define Sleep(x) ((void)(x))
|
|
#endif
|
|
|
|
struct sockaddr_in sinme;
|
|
struct sockaddr_in sinhim;
|
|
struct sockaddr_in frominet;
|
|
|
|
int domain, fromlen;
|
|
SOCKET fd; /* fd of network socket */
|
|
|
|
int buflen = 8 * 1024; /* length of buffer */
|
|
char *buf; /* ptr to dynamic buffer */
|
|
int nbuf = 2 * 1024; /* number of buffers to send in sinkmode */
|
|
|
|
int bufoffset = 0; /* align buffer to this */
|
|
int bufalign = 16*1024; /* modulo this */
|
|
|
|
int udp = 0; /* 0 = tcp, !0 = udp */
|
|
int options = 0; /* socket options */
|
|
int one = 1; /* for 4.3 BSD style setsockopt() */
|
|
short port = 5001; /* TCP port number */
|
|
char *host; /* ptr to name of host */
|
|
int trans; /* 0=receive, !0=transmit mode */
|
|
int sinkmode = 1; /* 0=normal I/O, !0=sink/source mode */
|
|
int verbose = 0; /* 0=print basic info, 1=print cpu rate, proc
|
|
* resource usage. */
|
|
int nodelay = 0; /* set TCP_NODELAY socket option */
|
|
int b_flag = 0; /* use mread() */
|
|
|
|
int udp_connect = 0; /* connect UDP sockets */
|
|
|
|
#define SOBUF_DEFAULT -1
|
|
int sobuf = SOBUF_DEFAULT; /* SO_RCVBUF/SO_SNDBUF setting; 0 == default */
|
|
int async = 0; /* async vs. synchronous io calls. value == */
|
|
/* number of simultaneous async calls. */
|
|
int connecttest = 0;
|
|
|
|
char *filename = NULL;
|
|
HANDLE filehandle;
|
|
|
|
WSADATA WsaData;
|
|
|
|
struct hostent *addr;
|
|
|
|
char stats[128];
|
|
unsigned long nbytes; /* bytes on net */
|
|
unsigned long numCalls; /* # of I/O system calls */
|
|
|
|
int Nread( SOCKET fd, PBYTE buf, INT count );
|
|
int mread( SOCKET fd, PBYTE bufp, INT n);
|
|
int Nwrite( SOCKET fd, PBYTE buf, INT count );
|
|
|
|
void err(char *s);
|
|
void mes(char *s);
|
|
void pattern(char *cp, int cnt );
|
|
|
|
void prep_timer();
|
|
double read_timer(char *s, int l);
|
|
//double cput, realt; /* user, real time (seconds) */
|
|
DWORD realt;
|
|
DWORD processUserTime;
|
|
DWORD processKernelTime;
|
|
DWORD systemUserTime;
|
|
DWORD systemKernelTime;
|
|
|
|
typedef struct _TTCP_ASYNC_INFO {
|
|
PVOID Buffer;
|
|
DWORD BytesWritten;
|
|
OVERLAPPED Overlapped;
|
|
} TTCP_ASYNC_INFO, *PTTCP_ASYNC_INFO;
|
|
|
|
#define bcopy(s, d, c) memcpy((u_char *)(d), (u_char *)(s), (c))
|
|
#define bzero(d, l) memset((d), '\0', (l))
|
|
#define bcmp(s1, s2, l) memcmp((s1), (s2), (l))
|
|
|
|
void
|
|
sigpipe()
|
|
{
|
|
}
|
|
|
|
void _CRTAPI1
|
|
main(argc,argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
unsigned long addr_tmp;
|
|
int error;
|
|
TTCP_ASYNC_INFO *info;
|
|
int i;
|
|
HANDLE *events;
|
|
BOOL ret;
|
|
|
|
error = WSAStartup( 0x0101, &WsaData );
|
|
if ( error == SOCKET_ERROR ) {
|
|
printf("ttcp: WSAStartup failed %ld:", WSAGetLastError());
|
|
}
|
|
|
|
if (argc < 2) goto usage;
|
|
|
|
argv++; argc--;
|
|
while( argc>0 && argv[0][0] == '-' ) {
|
|
switch (argv[0][1]) {
|
|
|
|
case 'B':
|
|
b_flag = 1;
|
|
break;
|
|
case 't':
|
|
trans = 1;
|
|
break;
|
|
case 'f':
|
|
trans = 1;
|
|
filename = &argv[0][2];
|
|
break;
|
|
case 'r':
|
|
trans = 0;
|
|
break;
|
|
case 'd':
|
|
options |= SO_DEBUG;
|
|
break;
|
|
case 'D':
|
|
nodelay = 1;
|
|
break;
|
|
case 'n':
|
|
nbuf = atoi(&argv[0][2]);
|
|
break;
|
|
case 'l':
|
|
buflen = atoi(&argv[0][2]);
|
|
break;
|
|
case 'h':
|
|
sobuf = atoi(&argv[0][2]);
|
|
break;
|
|
case 's':
|
|
sinkmode = 0; /* sink/source data */
|
|
break;
|
|
case 'p':
|
|
port = atoi(&argv[0][2]);
|
|
break;
|
|
case 'u':
|
|
udp = 1;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
case 'A':
|
|
bufalign = atoi(&argv[0][2]);
|
|
break;
|
|
case 'O':
|
|
bufoffset = atoi(&argv[0][2]);
|
|
break;
|
|
case 'c':
|
|
udp_connect = 1;
|
|
break;
|
|
case 'a':
|
|
if (argv[0][2] == '\0') {
|
|
async = 3;
|
|
} else {
|
|
async = atoi(&argv[0][2]);
|
|
}
|
|
break;
|
|
case 'C':
|
|
connecttest = 1;
|
|
break;
|
|
|
|
default:
|
|
goto usage;
|
|
}
|
|
argv++; argc--;
|
|
}
|
|
|
|
if (filename != NULL) {
|
|
filehandle = CreateFile(
|
|
filename,
|
|
GENERIC_READ,
|
|
0,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
NULL
|
|
);
|
|
if ( filehandle == INVALID_HANDLE_VALUE ) {
|
|
printf( "failed to open file %s: %ld\n", filename, GetLastError( ) );
|
|
}
|
|
printf( "opened file %s\n", filename );
|
|
}
|
|
|
|
if(trans) {
|
|
/* xmitr */
|
|
if (argc != 1) goto usage;
|
|
bzero((char *)&sinhim, sizeof(sinhim));
|
|
host = argv[0];
|
|
if (atoi(host) > 0 ) {
|
|
/* Numeric */
|
|
sinhim.sin_family = AF_INET;
|
|
sinhim.sin_addr.s_addr = inet_addr(host);
|
|
} else {
|
|
if ((addr=gethostbyname(host)) == NULL)
|
|
err("bad hostname");
|
|
sinhim.sin_family = addr->h_addrtype;
|
|
bcopy(addr->h_addr,(char*)&addr_tmp, addr->h_length);
|
|
sinhim.sin_addr.s_addr = addr_tmp;
|
|
}
|
|
sinhim.sin_port = htons(port);
|
|
sinme.sin_port = 0; /* free choice */
|
|
} else {
|
|
/* rcvr */
|
|
sinme.sin_port = htons(port);
|
|
}
|
|
|
|
if (connecttest) {
|
|
|
|
SOCKET fd2;
|
|
DWORD tmpbuf;
|
|
|
|
sinme.sin_family = AF_INET;
|
|
|
|
if (trans) {
|
|
for (i = 0; i < nbuf; i++) {
|
|
|
|
prep_timer();
|
|
|
|
fd = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (fd == INVALID_SOCKET) {
|
|
printf("socket() failed: %ld\n", GetLastError( ) );
|
|
exit(1);
|
|
}
|
|
if (bind(fd, (PSOCKADDR)&sinme, sizeof(sinme)) < 0) {
|
|
printf("bind() failed: %ld\n", GetLastError( ) );
|
|
exit(1);
|
|
}
|
|
if (connect(fd, (PSOCKADDR)&sinhim, sizeof(sinhim)) < 0) {
|
|
printf("connect() failed: %ld\n", GetLastError( ) );
|
|
exit(1);
|
|
}
|
|
if (recv(fd, (char *)&tmpbuf, sizeof(tmpbuf), 0) < 0) {
|
|
printf("recv() failed: %ld\n", GetLastError( ) );
|
|
exit(1);
|
|
}
|
|
closesocket(fd);
|
|
}
|
|
} else {
|
|
|
|
INT zero = 0;
|
|
|
|
// disable socket sharing in the process
|
|
setsockopt( (SOCKET)NULL, SOL_SOCKET, 0x8002, (char *)&zero, 4 );
|
|
|
|
fd = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (fd == INVALID_SOCKET) {
|
|
printf("socket() failed: %ld\n", GetLastError( ) );
|
|
}
|
|
if (bind(fd, (PSOCKADDR)&sinme, sizeof(sinme)) < 0) {
|
|
printf("bind() failed: %ld\n", GetLastError( ) );
|
|
}
|
|
if (listen(fd, 5) < 0) {
|
|
printf("listen() failed: %ld\n", GetLastError( ) );
|
|
exit(1);
|
|
}
|
|
|
|
tmpbuf = sizeof(sinhim);
|
|
fd2 = accept(fd, (PSOCKADDR)&sinhim, &tmpbuf);
|
|
if (fd2 == INVALID_SOCKET) {
|
|
printf("accept() failed: $ld\n", GetLastError());
|
|
exit(1);
|
|
}
|
|
closesocket(fd2);
|
|
|
|
prep_timer();
|
|
|
|
for (i = 1; i < nbuf; i++) {
|
|
tmpbuf = sizeof(sinhim);
|
|
fd2 = accept(fd, (PSOCKADDR)&sinhim, &tmpbuf);
|
|
if (fd2 == INVALID_SOCKET) {
|
|
printf("accept() failed: $ld\n", GetLastError());
|
|
exit(1);
|
|
}
|
|
closesocket(fd2);
|
|
}
|
|
}
|
|
numCalls = i;
|
|
(void)read_timer(stats,sizeof(stats));
|
|
goto display;
|
|
}
|
|
|
|
if (udp && buflen < 5) {
|
|
buflen = 5; /* send more than the sentinel size */
|
|
}
|
|
|
|
if ( (buf = (char *)malloc(buflen+bufalign)) == (char *)NULL)
|
|
err("malloc");
|
|
if (bufalign != 0)
|
|
buf +=(bufalign - ((int)buf % bufalign) + bufoffset) % bufalign;
|
|
|
|
if (trans) {
|
|
fprintf(stdout,
|
|
"ttcp-t: buflen=%d, nbuf=%d, align=%d/+%d, port=%d %s -> %s\n",
|
|
buflen, nbuf, bufalign, bufoffset, port,
|
|
udp?"udp":"tcp",
|
|
argv[0]);
|
|
} else {
|
|
fprintf(stdout,
|
|
"ttcp-r: buflen=%d, nbuf=%d, align=%d/+%d, port=%d %s\n",
|
|
buflen, nbuf, bufalign, bufoffset, port,
|
|
udp?"udp":"tcp");
|
|
}
|
|
|
|
if ((fd = socket(AF_INET, udp?SOCK_DGRAM:SOCK_STREAM, 0)) < 0)
|
|
err("socket");
|
|
mes("socket");
|
|
|
|
sinme.sin_family = AF_INET;
|
|
if (bind(fd, (PSOCKADDR)&sinme, sizeof(sinme)) < 0)
|
|
err("bind");
|
|
|
|
if (async != 0) {
|
|
|
|
info = malloc( sizeof(*info) * async );
|
|
if ( info == NULL ) {
|
|
printf( "malloc failed.\n" );
|
|
exit(1);
|
|
}
|
|
|
|
events = malloc( sizeof(HANDLE) * async );
|
|
if ( events == NULL ) {
|
|
printf( "malloc failed.\n" );
|
|
exit(1);
|
|
}
|
|
|
|
for ( i = 0; i < async; i++ ) {
|
|
|
|
info[i].Buffer = malloc(buflen);
|
|
if ( info[i].Buffer == NULL ) {
|
|
printf( "malloc failed.\n" );
|
|
exit(1);
|
|
}
|
|
|
|
events[i] = CreateEvent( NULL, FALSE, FALSE, NULL );
|
|
if ( events[i] == NULL ) {
|
|
printf( "CreateEvent failed: %ld\n", GetLastError( ) );
|
|
exit(1);
|
|
}
|
|
|
|
info[i].Overlapped.Internal = 0;
|
|
info[i].Overlapped.InternalHigh = 0;
|
|
info[i].Overlapped.Offset = 0;
|
|
info[i].Overlapped.OffsetHigh = 0;
|
|
info[i].Overlapped.hEvent = events[i];
|
|
}
|
|
|
|
if (sobuf == SOBUF_DEFAULT && trans) {
|
|
sobuf = 0;
|
|
printf( "ttcp-t: for async write, setting SO_SNDBUF to 0.\n" );
|
|
}
|
|
}
|
|
|
|
if (!udp) {
|
|
//signal(SIGPIPE, sigpipe);
|
|
if (trans) {
|
|
/* We are the client if transmitting */
|
|
if(options) {
|
|
#if defined(BSD42)
|
|
if( setsockopt(fd, SOL_SOCKET, options, 0, 0) < 0)
|
|
#else // BSD43
|
|
if( setsockopt(fd, SOL_SOCKET, options, (char *)&one, sizeof(one)) < 0)
|
|
#endif
|
|
err("setsockopt");
|
|
}
|
|
if (nodelay) {
|
|
if( setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
|
|
(char *)&one, sizeof(one)) < 0) {
|
|
err("setsockopt: nodelay");
|
|
}
|
|
}
|
|
if (sobuf != SOBUF_DEFAULT) {
|
|
if ( setsockopt(fd, SOL_SOCKET, SO_SNDBUF,
|
|
(char *)&sobuf, sizeof(sobuf)) < 0) {
|
|
err("setsockopt: SO_SNDBUF");
|
|
}
|
|
}
|
|
if(connect(fd, (PSOCKADDR)&sinhim, sizeof(sinhim) ) < 0)
|
|
err("connect");
|
|
mes("connect");
|
|
} else {
|
|
/* otherwise, we are the server and
|
|
* should listen for the connections
|
|
*/
|
|
listen(fd,0); /* allow a queue of 0 */
|
|
if(options) {
|
|
#if defined(BSD42)
|
|
if( setsockopt(fd, SOL_SOCKET, options, 0, 0) < 0)
|
|
#else // BSD43
|
|
if( setsockopt(fd, SOL_SOCKET, options, (char *)&one, sizeof(one)) < 0)
|
|
#endif
|
|
err("setsockopt");
|
|
}
|
|
if (sobuf != SOBUF_DEFAULT) {
|
|
if ( setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
|
|
(char *)&sobuf, sizeof(sobuf)) < 0) {
|
|
err("setsockopt: SO_RCVBUF");
|
|
}
|
|
}
|
|
fromlen = sizeof(frominet);
|
|
domain = AF_INET;
|
|
if((fd=accept(fd, (PSOCKADDR)&frominet, &fromlen) ) < 0)
|
|
err("accept");
|
|
{ struct sockaddr_in peer;
|
|
int peerlen = sizeof(peer);
|
|
if (getpeername(fd, (PSOCKADDR) &peer, &peerlen) < 0) {
|
|
err("getpeername");
|
|
}
|
|
fprintf(stderr,"ttcp-r: accept from %Fs\n",
|
|
inet_ntoa(peer.sin_addr));
|
|
}
|
|
}
|
|
} else if (udp_connect && trans) {
|
|
if(connect(fd, (PSOCKADDR)&sinhim, sizeof(sinhim) ) < 0)
|
|
err("connect");
|
|
mes("connect");
|
|
} else if (!trans) {
|
|
int arg = 65536;
|
|
if ( setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char *)&arg, sizeof(arg)) < 0 ) {
|
|
err("setsockopt(SO_RCVBUF)");
|
|
}
|
|
}
|
|
prep_timer();
|
|
|
|
if (async != 0 && trans) {
|
|
|
|
for ( i = 0; i < async; i++ ) {
|
|
|
|
ret = WriteFile(
|
|
(HANDLE)fd,
|
|
info[i].Buffer,
|
|
buflen,
|
|
&info[i].BytesWritten,
|
|
&info[i].Overlapped
|
|
);
|
|
if ( !ret && GetLastError( ) != ERROR_IO_PENDING ) {
|
|
printf( "WriteFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
nbuf--;
|
|
numCalls++;
|
|
}
|
|
|
|
while (nbuf > 0) {
|
|
ret = WaitForMultipleObjects( async, events, FALSE, INFINITE );
|
|
i = ret - WAIT_OBJECT_0;
|
|
|
|
ret = GetOverlappedResult(
|
|
(HANDLE)fd,
|
|
&info[i].Overlapped,
|
|
&info[i].BytesWritten,
|
|
FALSE
|
|
);
|
|
if ( !ret ) {
|
|
printf( "pended WriteFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
|
|
nbytes += info[i].BytesWritten;
|
|
|
|
ret = WriteFile(
|
|
(HANDLE)fd,
|
|
info[i].Buffer,
|
|
buflen,
|
|
&info[i].BytesWritten,
|
|
&info[i].Overlapped
|
|
);
|
|
if ( !ret && GetLastError( ) != ERROR_IO_PENDING ) {
|
|
printf( "WriteFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
nbuf--;
|
|
numCalls++;
|
|
}
|
|
|
|
for ( i = 0; i < async; i++ ) {
|
|
ret = GetOverlappedResult(
|
|
(HANDLE)fd,
|
|
&info[i].Overlapped,
|
|
&info[i].BytesWritten,
|
|
TRUE
|
|
);
|
|
if ( !ret ) {
|
|
printf( "pended WriteFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
|
|
nbytes += info[i].BytesWritten;
|
|
}
|
|
|
|
} else if (async != 0 && !trans) {
|
|
|
|
for ( i = 0; i < async; i++ ) {
|
|
|
|
ret = ReadFile(
|
|
(HANDLE)fd,
|
|
info[i].Buffer,
|
|
buflen,
|
|
&info[i].BytesWritten,
|
|
&info[i].Overlapped
|
|
);
|
|
if ( !ret && GetLastError( ) != ERROR_IO_PENDING ) {
|
|
printf( "ReadFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
nbuf--;
|
|
numCalls++;
|
|
}
|
|
|
|
while (TRUE) {
|
|
ret = WaitForMultipleObjects( async, events, FALSE, INFINITE );
|
|
i = ret - WAIT_OBJECT_0;
|
|
|
|
ret = GetOverlappedResult(
|
|
(HANDLE)fd,
|
|
&info[i].Overlapped,
|
|
&info[i].BytesWritten,
|
|
FALSE
|
|
);
|
|
if ( !ret ) {
|
|
printf( "pended ReadFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
|
|
nbytes += info[i].BytesWritten;
|
|
if (info[i].BytesWritten == 0) {
|
|
break;
|
|
}
|
|
|
|
ret = ReadFile(
|
|
(HANDLE)fd,
|
|
info[i].Buffer,
|
|
buflen,
|
|
&info[i].BytesWritten,
|
|
&info[i].Overlapped
|
|
);
|
|
if ( !ret && GetLastError( ) != ERROR_IO_PENDING ) {
|
|
printf( "ReadFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
nbuf--;
|
|
numCalls++;
|
|
}
|
|
|
|
for ( i = 0; i < async; i++ ) {
|
|
ret = GetOverlappedResult(
|
|
(HANDLE)fd,
|
|
&info[i].Overlapped,
|
|
&info[i].BytesWritten,
|
|
TRUE
|
|
);
|
|
if ( !ret ) {
|
|
printf( "pended ReadFile failed: %ld\n", GetLastError( ) );
|
|
break;
|
|
}
|
|
|
|
nbytes += info[i].BytesWritten;
|
|
}
|
|
|
|
} else if (filename != NULL ) {
|
|
|
|
OVERLAPPED ov;
|
|
DWORD bytesWritten;
|
|
|
|
ov.Internal = 0;
|
|
ov.InternalHigh = 0;
|
|
ov.Offset = 0;
|
|
ov.OffsetHigh = 0;
|
|
ov.hEvent = NULL;
|
|
|
|
//ret = TransmitFile( (SOCKET)fd, filehandle, 0, 0, &ov );
|
|
|
|
//if ( !ret && GetLastError( ) != ERROR_IO_PENDING ) {
|
|
// printf( "TransmitFile failed: %ld\n", GetLastError( ) );
|
|
// exit(1);
|
|
//}
|
|
|
|
ret = GetOverlappedResult(
|
|
(HANDLE)fd,
|
|
&ov,
|
|
&bytesWritten,
|
|
TRUE
|
|
);
|
|
if ( !ret ) {
|
|
printf( "TransmitFile failed after pending: %ld\n", GetLastError( ) );
|
|
exit(1);
|
|
}
|
|
|
|
} else if (sinkmode) {
|
|
|
|
register int cnt;
|
|
|
|
if (trans) {
|
|
pattern( buf, buflen );
|
|
if(udp) (void)Nwrite( fd, buf, 4 ); /* rcvr start */
|
|
while (nbuf-- && Nwrite(fd,buf,buflen) == buflen)
|
|
nbytes += buflen;
|
|
printf( "done sending, nbuf = %d\n", nbuf );
|
|
if(udp) {
|
|
Sleep( 10 );
|
|
(void)Nwrite( fd, buf, 4 ); /* rcvr end */
|
|
}
|
|
} else {
|
|
if (udp) {
|
|
while ((cnt=Nread(fd,buf,buflen)) > 0) {
|
|
static int going = 0;
|
|
if( cnt <= 4 ) {
|
|
if( going ) {
|
|
break; /* "EOF" */
|
|
}
|
|
going = 1;
|
|
prep_timer();
|
|
} else {
|
|
nbytes += cnt;
|
|
}
|
|
}
|
|
} else {
|
|
while ((cnt=Nread(fd,buf,buflen)) > 0) {
|
|
nbytes += cnt;
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
register int cnt;
|
|
if (trans) {
|
|
while((cnt=_read(0,buf,buflen)) > 0 &&
|
|
Nwrite(fd,buf,cnt) == cnt)
|
|
nbytes += cnt;
|
|
} else {
|
|
while((cnt=Nread(fd,buf,buflen)) > 0 &&
|
|
_write(1,buf,cnt) == cnt)
|
|
nbytes += cnt;
|
|
}
|
|
}
|
|
//if(errno) err("IO");
|
|
(void)read_timer(stats,sizeof(stats));
|
|
if(udp&&trans) {
|
|
(void)Nwrite( fd, buf, 4 ); /* rcvr end */
|
|
(void)Nwrite( fd, buf, 4 ); /* rcvr end */
|
|
(void)Nwrite( fd, buf, 4 ); /* rcvr end */
|
|
(void)Nwrite( fd, buf, 4 ); /* rcvr end */
|
|
}
|
|
display:
|
|
closesocket(fd);
|
|
//if( cput <= 0.0 ) cput = 0.001;
|
|
if( realt <= 1000 ) realt = 1000;
|
|
fprintf(stdout,
|
|
"ttcp%s: %ld bytes in %ld real milliseconds = %ld KB/sec +++\n",
|
|
trans?"-t":"-r",
|
|
nbytes, realt, nbytes/(realt/1000)/1024 );
|
|
//if (verbose) {
|
|
// fprintf(stdout,
|
|
// "ttcp%s: %ld bytes in %.2f CPU seconds = %.2f KB/cpu sec\n",
|
|
// trans?"-t":"-r",
|
|
// nbytes, cput, ((double)nbytes)/cput/1024 );
|
|
//}
|
|
|
|
if ( processKernelTime == 0 ) {
|
|
processKernelTime = 1;
|
|
}
|
|
if ( realt < 1000 ) {
|
|
realt = 1000;
|
|
}
|
|
if ( numCalls == 0 ) {
|
|
numCalls = 1;
|
|
}
|
|
if ( realt == 0 ) {
|
|
realt = 1;
|
|
}
|
|
if ( processUserTime == 0 ) {
|
|
processUserTime = 1;
|
|
}
|
|
|
|
fprintf(stdout,
|
|
"ttcp%s: %ld I/O calls, msec/call = %ld, calls/sec = %ld, "
|
|
"bytes/call = %ld\n",
|
|
trans?"-t":"-r",
|
|
numCalls,
|
|
realt/numCalls,
|
|
numCalls/(realt/1000),
|
|
nbytes/numCalls);
|
|
//fprintf(stdout,"ttcp%s: %s\n", trans?"-t":"-r", stats);
|
|
#ifndef WIN16
|
|
fprintf(stdout,"ttcp%s: system CPU %ld%%, User %ld%%, Kernel %ld%%, User/Kernel ratio %ld%%\n",
|
|
trans?"-t":"-r",
|
|
((systemUserTime+systemKernelTime)*100+50)/realt,
|
|
(systemUserTime*100+50)/realt,
|
|
(systemKernelTime*100+50)/realt,
|
|
(systemUserTime*100+50)/(systemUserTime+systemKernelTime));
|
|
fprintf(stdout,"ttcp%s: process CPU %ld%%, User %ld%%, Kernel %ld%%, User/Kernel ratio %ld%%\n",
|
|
trans?"-t":"-r",
|
|
((processUserTime+processKernelTime)*100+50)/realt,
|
|
(processUserTime*100+50)/realt,
|
|
(processKernelTime*100+50)/realt,
|
|
(processUserTime*100+50)/(processUserTime+processKernelTime));
|
|
#endif
|
|
if (verbose) {
|
|
fprintf(stdout,
|
|
"ttcp%s: buffer address %#x\n",
|
|
trans?"-t":"-r",
|
|
buf);
|
|
}
|
|
|
|
WSACleanup();
|
|
exit(0);
|
|
|
|
usage:
|
|
fprintf(stderr,"Usage: ttcp -t [-options] host [ < in ]\n");
|
|
fprintf(stderr," ttcp -r [-options > out]\n");
|
|
fprintf(stderr,"Common options:\n");
|
|
fprintf(stderr," -l## length of bufs read from or written to network (default 8192)\n");
|
|
fprintf(stderr," -u use UDP instead of TCP\n");
|
|
fprintf(stderr," -p## port number to send to or listen at (default 5001)\n");
|
|
fprintf(stderr," -s -t: don't source a pattern to network, get data from stdin\n");
|
|
fprintf(stderr," -r: don't sink (discard), print data on stdout\n");
|
|
fprintf(stderr," -A align the start of buffers to this modulus (default 16384)\n");
|
|
fprintf(stderr," -O start buffers at this offset from the modulus (default 0)\n");
|
|
fprintf(stderr," -v verbose: print more statistics\n");
|
|
fprintf(stderr," -d set SO_DEBUG socket option\n");
|
|
fprintf(stderr," -h set SO_SNDBUF or SO_RCVBUF\n");
|
|
fprintf(stderr," -a use asynchronous I/O calls\n");
|
|
fprintf(stderr,"Options specific to -t:\n");
|
|
fprintf(stderr," -n## number of source bufs written to network (default 2048)\n");
|
|
fprintf(stderr," -D don't buffer TCP writes (sets TCP_NODELAY socket option)\n");
|
|
fprintf(stderr,"Options specific to -r:\n");
|
|
fprintf(stderr," -B for -s, only output full blocks as specified by -l (for TAR)\n");
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
|
|
void err(s)
|
|
char *s;
|
|
{
|
|
fprintf(stderr,"ttcp%s: ", trans?"-t":"-r");
|
|
perror(s);
|
|
fprintf(stderr,"errno=%d\n",WSAGetLastError( ));
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
|
|
void mes(s)
|
|
char *s;
|
|
{
|
|
fprintf(stderr,"ttcp%s: %s\n", trans?"-t":"-r", s);
|
|
}
|
|
|
|
void pattern( cp, cnt )
|
|
register char *cp;
|
|
register int cnt;
|
|
{
|
|
register char c;
|
|
c = 0;
|
|
while( cnt-- > 0 ) {
|
|
while( !isprint((c&0x7F)) ) c++;
|
|
*cp++ = (c++&0x7F);
|
|
}
|
|
}
|
|
|
|
|
|
static void prusage();
|
|
static void tvadd();
|
|
static void tvsub();
|
|
static void psecs();
|
|
|
|
#if defined(SYSV)
|
|
/*ARGSUSED*/
|
|
static
|
|
getrusage(ignored, ru)
|
|
int ignored;
|
|
register struct rusage *ru;
|
|
{
|
|
struct tms buf;
|
|
|
|
times(&buf);
|
|
|
|
/* Assumption: HZ <= 2147 (LONG_MAX/1000000) */
|
|
ru->ru_stime.tv_sec = buf.tms_stime / HZ;
|
|
ru->ru_stime.tv_usec = ((buf.tms_stime % HZ) * 1000000) / HZ;
|
|
ru->ru_utime.tv_sec = buf.tms_utime / HZ;
|
|
ru->ru_utime.tv_usec = ((buf.tms_utime % HZ) * 1000000) / HZ;
|
|
}
|
|
|
|
#if !defined(sgi)
|
|
/*ARGSUSED*/
|
|
static
|
|
gettimeofday(tp, zp)
|
|
struct timeval *tp;
|
|
struct timezone *zp;
|
|
{
|
|
tp->tv_sec = time(0);
|
|
tp->tv_usec = 0;
|
|
}
|
|
#endif
|
|
#endif // SYSV
|
|
|
|
#ifdef WIN16
|
|
DWORD time0;
|
|
DWORD time1;
|
|
#else
|
|
LARGE_INTEGER time0;
|
|
SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION systemPerfInfo0;
|
|
KERNEL_USER_TIMES processPerfInfo0;
|
|
LARGE_INTEGER time1;
|
|
SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION systemPerfInfo1;
|
|
KERNEL_USER_TIMES processPerfInfo1;
|
|
#endif
|
|
|
|
/*
|
|
* P R E P _ T I M E R
|
|
*/
|
|
void
|
|
prep_timer()
|
|
{
|
|
#ifdef WIN16
|
|
time0 = GetTickCount();
|
|
#else
|
|
NTSTATUS status;
|
|
|
|
//gettimeofday(&time0, (struct timezone *)0);
|
|
//getrusage(RUSAGE_SELF, &ru0);
|
|
|
|
status = NtQuerySystemTime( &time0 );
|
|
if ( !NT_SUCCESS(status) ) {
|
|
printf( "NtQuerySystemTime failed: %X\n", status );
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
|
|
status = NtQuerySystemInformation (
|
|
SystemProcessorPerformanceInformation,
|
|
&systemPerfInfo0,
|
|
sizeof(systemPerfInfo0),
|
|
NULL
|
|
);
|
|
if ( !NT_SUCCESS(status) ) {
|
|
printf( "NtQuerySystemInformation failed: %X\n", status );
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
|
|
status = NtQueryInformationProcess(
|
|
NtCurrentProcess( ),
|
|
ProcessTimes,
|
|
&processPerfInfo0,
|
|
sizeof(processPerfInfo0),
|
|
NULL
|
|
);
|
|
if ( !NT_SUCCESS(status) ) {
|
|
printf( "NtQueryInformationProcess failed: %X\n", status );
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* R E A D _ T I M E R
|
|
*
|
|
*/
|
|
double
|
|
read_timer(str,len)
|
|
char *str;
|
|
int len;
|
|
{
|
|
#ifdef WIN16
|
|
time1 = GetTickCount();
|
|
realt = time1 - time0;
|
|
return 0;
|
|
#else
|
|
#if 0
|
|
char line[132];
|
|
|
|
getrusage(RUSAGE_SELF, &ru1);
|
|
gettimeofday(&timedol, (struct timezone *)0);
|
|
prusage(&ru0, &ru1, &timedol, &time0, line);
|
|
(void)strncpy( str, line, len );
|
|
|
|
/* Get real time */
|
|
tvsub( &td, &timedol, &time0 );
|
|
realt = td.tv_sec + ((double)td.tv_usec) / 1000000;
|
|
|
|
/* Get CPU time (user+sys) */
|
|
tvadd( &tend, &ru1.ru_utime, &ru1.ru_stime );
|
|
tvadd( &tstart, &ru0.ru_utime, &ru0.ru_stime );
|
|
tvsub( &td, &tend, &tstart );
|
|
cput = td.tv_sec + ((double)td.tv_usec) / 1000000;
|
|
if( cput < 0.00001 ) cput = 0.00001;
|
|
return( cput );
|
|
#endif
|
|
|
|
NTSTATUS status;
|
|
LARGE_INTEGER result, result2;
|
|
ULONG dummy;
|
|
|
|
status = NtQuerySystemTime( &time1 );
|
|
if ( !NT_SUCCESS(status) ) {
|
|
printf( "NtQuerySystemTime failed: %X\n", status );
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
|
|
status = NtQuerySystemInformation (
|
|
SystemProcessorPerformanceInformation,
|
|
&systemPerfInfo1,
|
|
sizeof(systemPerfInfo1),
|
|
NULL
|
|
);
|
|
if ( !NT_SUCCESS(status) ) {
|
|
printf( "NtQuerySystemInformation failed: %X\n", status );
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
|
|
status = NtQueryInformationProcess(
|
|
NtCurrentProcess( ),
|
|
ProcessTimes,
|
|
&processPerfInfo1,
|
|
sizeof(processPerfInfo1),
|
|
NULL
|
|
);
|
|
if ( !NT_SUCCESS(status) ) {
|
|
printf( "NtQueryInformationProcess failed: %X\n", status );
|
|
WSACleanup();
|
|
exit(1);
|
|
}
|
|
|
|
result = RtlLargeIntegerSubtract( time1, time0 );
|
|
result = RtlExtendedLargeIntegerDivide( result, 10*1000, &dummy );
|
|
if ( result.HighPart != 0 ) {
|
|
printf( "result 1 high part == %ld\n", result.HighPart );
|
|
}
|
|
realt = result.LowPart;
|
|
|
|
result = RtlLargeIntegerSubtract( systemPerfInfo1.UserTime, systemPerfInfo0.UserTime );
|
|
result = RtlExtendedLargeIntegerDivide( result, 10*1000, &dummy );
|
|
if ( result.HighPart != 0 ) {
|
|
printf( "result 2 high part == %ld\n", result.HighPart );
|
|
}
|
|
systemUserTime = result.LowPart;
|
|
|
|
result = RtlLargeIntegerSubtract( systemPerfInfo1.KernelTime, systemPerfInfo0.KernelTime );
|
|
result2 = RtlLargeIntegerSubtract( systemPerfInfo1.IdleTime, systemPerfInfo0.IdleTime );
|
|
result = RtlLargeIntegerSubtract( result, result2 );
|
|
result = RtlExtendedLargeIntegerDivide( result, 10*1000, &dummy );
|
|
if ( result.HighPart != 0 ) {
|
|
printf( "result 3 high part == %ld\n", result.HighPart );
|
|
}
|
|
systemKernelTime = result.LowPart;
|
|
|
|
result = RtlLargeIntegerSubtract( processPerfInfo1.UserTime, processPerfInfo0.UserTime );
|
|
result = RtlExtendedLargeIntegerDivide( result, 10*1000, &dummy );
|
|
if ( result.HighPart != 0 ) {
|
|
printf( "result 4 high part == %ld\n", result.HighPart );
|
|
}
|
|
processUserTime = result.LowPart;
|
|
|
|
result = RtlLargeIntegerSubtract( processPerfInfo1.KernelTime, processPerfInfo0.KernelTime );
|
|
result = RtlExtendedLargeIntegerDivide( result, 10*1000, &dummy );
|
|
if ( result.HighPart != 0 ) {
|
|
printf( "result 5 high part == %ld\n", result.HighPart );
|
|
}
|
|
processKernelTime = result.LowPart;
|
|
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
prusage(r0, r1, e, b, outp)
|
|
register struct rusage *r0, *r1;
|
|
struct timeval *e, *b;
|
|
char *outp;
|
|
{
|
|
struct timeval tdiff;
|
|
register time_t t;
|
|
register char *cp;
|
|
register int i;
|
|
int ms;
|
|
|
|
t = (r1->ru_utime.tv_sec-r0->ru_utime.tv_sec)*100+
|
|
(r1->ru_utime.tv_usec-r0->ru_utime.tv_usec)/10000+
|
|
(r1->ru_stime.tv_sec-r0->ru_stime.tv_sec)*100+
|
|
(r1->ru_stime.tv_usec-r0->ru_stime.tv_usec)/10000;
|
|
ms = (e->tv_sec-b->tv_sec)*100 + (e->tv_usec-b->tv_usec)/10000;
|
|
|
|
#define END(x) {while(*x) x++;}
|
|
#if defined(SYSV)
|
|
cp = "%Uuser %Zsys %Ereal %P";
|
|
#else
|
|
cp = "%Uuser %Zsys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Xcsw";
|
|
#endif
|
|
for (; *cp; cp++) {
|
|
if (*cp != '%')
|
|
*outp++ = *cp;
|
|
else if (cp[1]) switch(*++cp) {
|
|
|
|
case 'U':
|
|
tvsub(&tdiff, &r1->ru_utime, &r0->ru_utime);
|
|
sprintf(outp,"%d.%01d", tdiff.tv_sec, tdiff.tv_usec/100000);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'S':
|
|
tvsub(&tdiff, &r1->ru_stime, &r0->ru_stime);
|
|
sprintf(outp,"%d.%01d", tdiff.tv_sec, tdiff.tv_usec/100000);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'E':
|
|
psecs(ms / 100, outp);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'P':
|
|
sprintf(outp,"%d%%", (int) (t*100 / ((ms ? ms : 1))));
|
|
END(outp);
|
|
break;
|
|
|
|
#if !defined(SYSV)
|
|
case 'W':
|
|
i = r1->ru_nswap - r0->ru_nswap;
|
|
sprintf(outp,"%d", i);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'X':
|
|
sprintf(outp,"%d", t == 0 ? 0 : (r1->ru_ixrss-r0->ru_ixrss)/t);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'D':
|
|
sprintf(outp,"%d", t == 0 ? 0 :
|
|
(r1->ru_idrss+r1->ru_isrss-(r0->ru_idrss+r0->ru_isrss))/t);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'K':
|
|
sprintf(outp,"%d", t == 0 ? 0 :
|
|
((r1->ru_ixrss+r1->ru_isrss+r1->ru_idrss) -
|
|
(r0->ru_ixrss+r0->ru_idrss+r0->ru_isrss))/t);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'M':
|
|
sprintf(outp,"%d", r1->ru_maxrss/2);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'F':
|
|
sprintf(outp,"%d", r1->ru_majflt-r0->ru_majflt);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'R':
|
|
sprintf(outp,"%d", r1->ru_minflt-r0->ru_minflt);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'I':
|
|
sprintf(outp,"%d", r1->ru_inblock-r0->ru_inblock);
|
|
END(outp);
|
|
break;
|
|
|
|
case 'O':
|
|
sprintf(outp,"%d", r1->ru_oublock-r0->ru_oublock);
|
|
END(outp);
|
|
break;
|
|
case 'C':
|
|
sprintf(outp,"%d+%d", r1->ru_nvcsw-r0->ru_nvcsw,
|
|
r1->ru_nivcsw-r0->ru_nivcsw );
|
|
END(outp);
|
|
break;
|
|
#endif !SYSV
|
|
}
|
|
}
|
|
*outp = '\0';
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
tvadd(tsum, t0, t1)
|
|
struct timeval *tsum, *t0, *t1;
|
|
{
|
|
|
|
tsum->tv_sec = t0->tv_sec + t1->tv_sec;
|
|
tsum->tv_usec = t0->tv_usec + t1->tv_usec;
|
|
if (tsum->tv_usec > 1000000)
|
|
tsum->tv_sec++, tsum->tv_usec -= 1000000;
|
|
}
|
|
|
|
static void
|
|
tvsub(tdiff, t1, t0)
|
|
struct timeval *tdiff, *t1, *t0;
|
|
{
|
|
|
|
tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
|
|
tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
|
|
if (tdiff->tv_usec < 0)
|
|
tdiff->tv_sec--, tdiff->tv_usec += 1000000;
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
psecs(l,cp)
|
|
long l;
|
|
register char *cp;
|
|
{
|
|
register int i;
|
|
|
|
i = l / 3600;
|
|
if (i) {
|
|
sprintf(cp,"%d:", i);
|
|
END(cp);
|
|
i = l % 3600;
|
|
sprintf(cp,"%d%d", (i/60) / 10, (i/60) % 10);
|
|
END(cp);
|
|
} else {
|
|
i = l;
|
|
sprintf(cp,"%d", i / 60);
|
|
END(cp);
|
|
}
|
|
i %= 60;
|
|
*cp++ = ':';
|
|
sprintf(cp,"%d%d", i / 10, i % 10);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* N R E A D
|
|
*/
|
|
int
|
|
Nread( SOCKET fd, PBYTE buf, INT count )
|
|
{
|
|
int len = sizeof(sinhim);
|
|
register int cnt;
|
|
if( udp ) {
|
|
if (udp_connect) {
|
|
cnt = recv( fd, buf, count, 0 );
|
|
numCalls++;
|
|
} else {
|
|
cnt = recvfrom( fd, buf, count, 0, (PSOCKADDR)&sinhim, &len );
|
|
numCalls++;
|
|
}
|
|
} else {
|
|
if( b_flag )
|
|
cnt = mread( fd, buf, count ); /* fill buf */
|
|
else {
|
|
cnt = recv( fd, buf, count, 0 );
|
|
numCalls++;
|
|
}
|
|
}
|
|
if (cnt<0) {
|
|
printf( "recv(from) failed: %ld\n", WSAGetLastError( ) );
|
|
}
|
|
return(cnt);
|
|
}
|
|
|
|
/*
|
|
* N W R I T E
|
|
*/
|
|
int
|
|
Nwrite( SOCKET fd, PBYTE buf, INT count )
|
|
{
|
|
register int cnt;
|
|
int bytesToSend = count;
|
|
if( udp && !udp_connect) {
|
|
again:
|
|
cnt = sendto( fd, buf, count, 0, (PSOCKADDR)&sinhim, sizeof(sinhim) );
|
|
numCalls++;
|
|
if( cnt<0 && WSAGetLastError( ) == WSAENOBUFS ) {
|
|
Sleep(18000);
|
|
goto again;
|
|
}
|
|
} else {
|
|
while( count > 0 )
|
|
{
|
|
cnt = send( fd, buf, count, 0 );
|
|
numCalls++;
|
|
|
|
//if (count != cnt) {
|
|
// printf( "Tried %d, sent %d\n", count, cnt );
|
|
//} else {
|
|
// printf( "send %d bytes as requested.\n", cnt );
|
|
//}
|
|
|
|
if( cnt == SOCKET_ERROR )
|
|
{
|
|
break;
|
|
}
|
|
|
|
count -= cnt;
|
|
buf += cnt;
|
|
}
|
|
}
|
|
if (cnt<0) {
|
|
printf( "send(to) failed: %ld\n", WSAGetLastError( ) );
|
|
return -1;
|
|
}
|
|
return(bytesToSend);
|
|
}
|
|
|
|
/*
|
|
* M R E A D
|
|
*
|
|
* This function performs the function of a read(II) but will
|
|
* call read(II) multiple times in order to get the requested
|
|
* number of characters. This can be necessary because
|
|
* network connections don't deliver data with the same
|
|
* grouping as it is written with. Written by Robert S. Miles, BRL.
|
|
*/
|
|
int
|
|
mread( SOCKET fd, PBYTE bufp, INT n)
|
|
{
|
|
register unsigned count = 0;
|
|
register int nread;
|
|
|
|
do {
|
|
nread = recv(fd, bufp, n-count, 0);
|
|
numCalls++;
|
|
if(nread < 0) {
|
|
if (count<0) {
|
|
printf( "recv failed: %ld\n", WSAGetLastError( ) );
|
|
}
|
|
return(-1);
|
|
}
|
|
if(nread == 0)
|
|
return((int)count);
|
|
count += (unsigned)nread;
|
|
bufp += nread;
|
|
} while(count < (UINT)n);
|
|
|
|
return((int)count);
|
|
}
|
|
|
|
|