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1a9970619d
openwrt-xburst/package/ttcp/ttcp.c
nico 0c34c224d0 backport fix from changeset:2599 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2600 3c298f89-4303-0410-b956-a3cf2f4a3e73
2005-12-08 09:46:25 +00:00

2375 lines
73 KiB
C
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/*
* T T C P . C
*
* Test TCP connection. Makes a connection on port 5010
* 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 TCP_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
* Modified by Steve Miller of the University of Maryland, College Park
* -b sets the socket buffer size (SO_SNDBUF/SO_RCVBUF)
* Modified Sept. 1989 at Silicon Graphics, Inc.
* restored -s sense at request of tcs@brl
* Modified Oct. 1991 at Silicon Graphics, Inc.
* use getopt(3) for option processing, add -f and -T options.
* SGI IRIX 3.3 and 4.0 releases don't need #define SYSV.
*
* Modified --> Nov 1996 at CERN (Daniel DAVIDS)
* printout of the Socket-Buffer-Sizes
* configured for HP-UX 9000 OS
* configured for Windows NT OS
* Modified Dec 1996 at CERN (Jacques ROCHEZ)
* severe cleanup
* addaptation to the gcc compiler (ANSI)
* configured for Lynx OS
* automatic format for the rate display (G/M/K/)bytes/sec
* added log (L) and more help (h) options.
* Modified May 1997 at CERN (Jacques ROCHEZ)
* removed the mes() function following err() function.
* changed the default port to 5010
* Modified jul 1997 at CERN (Jacques ROCHEZ)
* adapted the timing calculation in microseconds
* addapted the code for Vsisual C++ under NT4.0
* Modified aug 1997 at CERN (Jacques ROCHEZ)
* initialise to 0 the variables nbytes, numcalls
* moved the buffer pre-load outside the measured timed area
* Distribution Status -
* Public Domain. Distribution Unlimited.
* Modified jun 1998 at Epigram
* - print hash marks to indicate prograss on transmitting side
* - sleep between bursts of buffers
* - set number of buffers/burst
* Modified jul 1998 at Epigram
* - send random size buffers
* Modified jan 1999 at Epigram (WES)
* - added start and end patterns to UDP start and end packets
* - added handling of missed start, end, or data packets for UDP tests
*/
#ifndef lint
static char RCSid[] = "ttcp.c $- CERN Revision: 3.8 (dev level) -$";
#endif
static char VersDate[] = "Epigram 15-jul-98";
/* system dependent setting
* ------------------------
* uname -a,gcc -v a.c are the tools used
*
* Platform/OS #define MACRO predefined
* ----------- ------- ---------------------------------------------------
* SunOS OS BSD43 __unix__ __sun__ __sparc__
* SUN Solaris SYSV __unix__ __sun__ __sparc__ __svr4__
* SGI-IRIX < 3.3 SYSV set as #define sgi
* HP-UX 9000 SYSV __unix__ __hpux__ __hp9k8__
* OSF/1 V3.2 SYSV __unix__ __osf__ __alpha__
* OSF/1 V4.0 SYSV __unix__ __osf__ __alpha__ _CFE
* LynxOS SYSV __unix__ __lynx__ __powerpc__
* Windows NT SYSV __WINNT__ __i386__ __M_COFF__
* AIX SYSV _AIX _AIX32 _POWER _IBMR2 _ARCH_PWR
* Micosoft Visual C++ compiler under WindowNT 4.0
* Windows NT _WINDOWS WIN32
* Unix BSD 41a BSD41a
* 42 BSD42
* 43 BSD43
* Machines using System V with BSD sockets should define SYSV.
*
* Compiler commands
* -----------------
* LynxOS : gcc -c ttcp.c -o ttcp.o | gcc -o ttcp -O ttcp.o -lnetinet -lc_p -lc
*/
/* -------------attempt to set an automatic UNIX OS family detection -------*/
#if defined(__hp9k8__) || defined(__osf__) || defined(__srv4__)
#define SYSV
#endif
#if defined(__lynx__)
#define SYSV
#endif
/* for solaris (__srv4__) the parameters SYSV is already set */
/* version A.09.01 'key words' differs from A.09.05 A */
#if defined(__hpux)
#define __hpux__
#endif
#if defined(__sun__)&&!defined(__srv4__)
#define BSD43 /* changed by BSD42 if necessary */
#endif
#if defined(_WIN32) /* Window NT 4.0 compiled with VisualC++ 4 */
#define __NTVIS__
#define SYSV
#endif
#if defined(__FreeBSD__)
#define BSD43
#endif
#if defined(__linux__)
#define BSD43
#endif
/*--------------------------------------------------------------------------*/
#if !defined(UNDER_CE)
#include <signal.h>
#include <ctype.h>
#include <errno.h>
#include <sys/types.h>
#endif
#if defined(SYSV)
#if defined(__osf__)
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/time.h> /* struct timeval */
#include <sys/resource.h> /* definition of struct rusage */
#else /* else of __osf__ */
#if defined(__NTVIS__)
#include <winsock2.h>
#include <windows.h> /* required for all Windows applications */
#include <ws2tcpip.h>
#include <memory.h>
#include <time.h>
#if !defined(UNDER_CE)
#include <sys\timeb.h>
#include <fcntl.h>
#endif
#include <stdlib.h>
#include <io.h>
struct rusage { struct timeval ru_utime, ru_stime; };
#define RUSAGE_SELF 0
#else /* else of __NTVIS__ */
#if defined(__lynx__)
#include <socket.h> /* located in /usr/include/..... */
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <time.h>
#include <resource.h> /* definition of struct rusage */
#include <sys/times.h>
#define RUSAGE_SELF 0
#include <conf.h> /* definition of TICKSPERSEC (HZ) */
#include <sys/param.h>
#else /* else of __Lynx__ */
#if defined(__svr4__)
#include <sys/socket.h>
#include <sys/uio.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/time.h> /* struct timeval */
#include <sys/resource.h> /* definition of struct rusage */
#include <sys/times.h>
#define RUSAGE_SELF 0
#include <sys/param.h>
#else /* else of __svr4__ all SYSV cases except those mentionned before */
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/time.h> /* struct timeval */
#include <sys/resource.h> /* definition of struct rusage */
#include <sys/times.h>
#define RUSAGE_SELF 0
#include <sys/param.h>
#endif /* __svr4__ */
#endif /* __lynx__ */
#endif /* __NTVIS__ */
#endif /* __osf__ */
#else /* else of SYSV it is a BSD OS */
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#if defined(__linux__)
#include <time.h> /* struct timeval */
#else
#include <sys/time.h> /* struct timeval */
#endif
#include <sys/resource.h> /* definition of struct rusage */
#include <unistd.h> /* for usleep() - henry */
#define SOCKET_ERROR -1
#endif /* SYSV */
#if defined(__NTVIS__)
#if defined(_DEBUG) /* usual debug symbol for VC++ */
#define DEBUG 1
#endif
void usleep(unsigned int microseconds);
#define bcopy(a,b,n) memcpy((b), (a), (n))
#define bzero(a,n) memset((a), 0, (n))
#ifndef _GETOPT_
#define _GETOPT_
int getopt(int argc, char **argv, char *optstring);
extern char *optarg; // returned arg to go with this option
extern int optind; // index to next argv element to process
extern int opterr; // should error messages be printed?
extern int optopt; //
#define BADCH ('?')
#endif // _GETOPT
/* get option letter from argument vector */
int
opterr = 1, // should error messages be printed?
optind = 1, // index into parent argv vector
optopt; // character checked for validity
char *optarg; // argument associated with option
#define EMSG ""
char *progname; // may also be defined elsewhere
#endif /*__NTVIS__*/
/* sockaddr_in == file server address structure
*
* Socket address, internet style. declared in : /netinet/in.h
* struct sockaddr_in {short sin_family;
* u_short sin_port;
* struct in_addr sin_addr;
* char sin_zero[8];
* };
*
* Structure used by kernel to store most addresses. declared in ./sys/socket.h
* struct sockaddr{u_short sa_family; address family
* char sa_data[14]; up to 14 bytes of direct address
* };
* PS : sin stand for "socket internet number"
*/
#ifndef __NTVIS__
#define FAR
#endif
#if defined(__CONST_SOCKADDR_ARG)
#define SOCKADDR_CAST (__CONST_SOCKADDR_ARG)
#elif defined(__lynx__) || defined(__sun__) || defined(_AIX) || defined(__FreeBSD__) || defined(__NTVIS__)
#define SOCKADDR_CAST (struct sockaddr FAR *)
#else
#define SOCKADDR_CAST
#endif
#if defined(__sun__)
struct sockaddr_in sockaddr; /* done in ./X11/Xdmcp.h */
#endif
struct sockaddr_in sinme; /* is the socket struct. in the local host */
struct sockaddr_in sinhim; /* is the socket struc. in the remote host */
#if defined(__lynx__) || defined(__svr4__) || defined(_AIX)
struct sockaddr frominet;
#else
struct sockaddr_in frominet;
#endif /* __lynx__ */
int domain, fromlen;
#if !defined(__NTVIS__)
#define SOCKET int
#endif /* __NTVIS__ */
SOCKET fd; /* fd of network socket */
#if !defined(__lynx__)
extern int errno;
#endif
#include <stdio.h>
FILE *fplog = NULL; /* file pointer for the log file */
char logfile[100]; /* file name for the log */
static char logfile_head[] ="ttcp_log"; /* header name for the log */
int buflen = 8 * 1024; /* length of buffer */
char *buf; /* ptr to dynamic buffer */
int nbuf = 2 * 1024; /* number of buffers to send in sinkmode */
#define START_PKT_LEN 4
#define START_PATTERN_LEN 4
#define END_PKT_LEN 8
#define END_PATTERN_LEN 4
#define MIN_UDP_LEN 5
char start_pattern[START_PATTERN_LEN] = {1, 2, 3, 4};
char end_pattern[END_PATTERN_LEN] = {2, 2, 2, 2};
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 = 5010; /* TCP port number */
char *host; /* ptr to name of host */
int rndm = 0; /* 0="normal", !0=random data */
int trans; /* 0=receive, !0=transmit mode */
int timeout; /* read timeout in millisec */
int debug = 0; /* 0=No-Debug, 1=Debug-Set-On */
int sinkmode = 0; /* 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 pri = 0; /* link layer priority */
int b_flag = 0; /* use mread() */
int log_cnt = 0; /* append result to a log */
int sockbufsize = 0; /* socket buffer size to use */
char fmt = 'A'; /* output format:
* b = bits, B = bytes,
* k = kilobits, K = kilobytes,
* m = megabits, M = megabytes,
* g = gigabits, G = gigabytes,
* A = automatic Xbytes (default) */
int touchdata = 0; /* access data after reading */
int seq_info = 0; /* report out of order seq nums */
int hash = 0; /* print hash marks for each buffer */
int udpsleep = 0; /* sleep in between udp buffers */
int burstn = 1; /* number of buffers per burst */
int bufmin = -1; /* minimum buffer size to use when
sending random-size buffers */
unsigned int seed = 1; /* seed for random number generator
used for random buffer lengths */
int no_start = 0; /* skip the start frames for UDP */
int no_data = 0; /* skip all data frames for UDP */
int no_end = 0; /* skip the end frames for UDP */
double nbytes; /* bytes on net */
unsigned long numCalls; /* # of I/O system calls */
struct hostent *addr;
extern int optind;
extern char *optarg;
#if defined(UNDER_CE)
static int errno;
static char *weekday[] ={"Sun", "Mon","Tues", "Wed", "Thurs", "Fri", "Sat"};
static char *month[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "July", "Aug", "Sep", "Oct", "Nov", "Dec"};
#define perror printf
#endif
/*--------------------------------------------------------------------------*/
static struct timeval time0; /* Time at which timing started */
static struct timeval time1;
static struct rusage ru0; /* Resource utilization at the start */
static struct rusage ru1;
static struct tm *tms; /* system time structure */
/*-----------Prototype functions definitions -------------------------------*/
/*--------------------------------------------------------------------------*/
/* ANSI input/output functions (stdio.h) */
#if defined(__lynx__)
int getopt(int, char**, char*);
int gettimeofday(struct timeval *tp, struct timezone *tzp);
#else
#if defined(__svr4__)
#else
#if defined(_AIX)
#else
#if defined(__hpux__)
#else
#if defined(__NTVIS__)
#else
#if defined(BSD42) || defined(BSD43)
#else
int printf( char*, ...);
int fprintf(FILE*,char*, ...);
void perror(char*);
int getopt(int, char**, char*);
int gettimeofday(struct timeval *tp, struct timezone *tzp);
#endif /* BSD42 || BSD43 */
#endif /* __NTVIS__ */
#endif /* __hpux__ */
#endif /* _AIX */
#endif /* __svr4__ */
#endif /* __lynx__ */
int main(int argc, char* argv[]);
#if ( (!(defined(BSD42))) && (!(defined(BSD43))) && (!(defined(__NTVIS__))) )
int read(int, char*, int);
int write(int, char*, int);
int close(int);
#endif /* !(BSD42) && !(BSD43) */
int fclose(FILE *stream);
#if !defined(BSD43) && !defined(__NTVIS__)
void bzero(char*,int);
void bcopy(char*, char*, int);
char strncpy(char *s1,char *s2,size_t n);
int atoi(char*);
int malloc(int);
#endif
/* ANSI socket functions prototype /sys/socket.h */
#if defined(__lynx__)
int select(int, fd_set*, fd_set*, fd_set*, struct timeval*);
#else
#if defined(__svr4__) && !defined(sparc)
/* informations in : /usr/include/sys/socket.h */
int socket(int, int, int);
int connect(int, struct sockaddr *, int);
int bind(int, struct sockaddr *, int);
int listen(int, int);
int accept(int, struct sockaddr *, int *);
int sendto(int, const char *, int, int, const struct sockaddr *, int);
int recvfrom(int, char *, int, int, struct sockaddr *, int *);
int getpeername(int, struct sockaddr *, int *);
int getsockopt(int, int, int, char *, int *);
int select(int, fd_set*, fd_set*, fd_set*, struct timeval*);
#else
#if defined(_AIX)
int select(unsigned long, void *, void *, void *, struct timeval *);
#else
#if defined(__hpux__)
int getrusage(int who,struct rusage *rusage);
#else
#if defined(__NTVIS__)
#else
#if defined(BSD42) || defined(BSD43)
#else
int socket(int, int, int);
int connect(int s,struct sockaddr_in *name, int namelen);
int bind(int s,struct sockaddr *name,int namelen);
int listen(int, int);
int accept(int, struct sockaddr_in *, int *);
int sendto(int, char *, int, int, struct sockaddr_in *, int);
int recvfrom(int, char *, int, int, struct sockaddr_in *, int *);
int getpeername(int, struct sockaddr *, int *);
int setsockopt(int, int, int, char *, int);
int getsockopt(int, int, int, char*, int*);
int select(int, fd_set*, fd_set*, fd_set*, struct timeval*);
#endif /* BSD42 || BSD43 */
#endif /* __hpux__ */
#endif /* _AIX */
#endif /* __svr4__ */
#endif /* __lynx__ */
#endif /* __NTVIS__ */
/* ttcp prototype functions */
void udp_rcv_test(void);
double calc_cpu_time(struct rusage *r0, struct rusage *r1);
double calc_real_time(struct timeval *t0, struct timeval *t1);
int getrusage(int who,struct rusage *rusage);
void sockets_err(char*);
void err(char *);
void mes(char *);
void pattern(char *, int);
int Nread(SOCKET, void *, int);
int Nwrite(int, void *, int);
void delay(int);
int mread(int, char *,unsigned);
char *outfmt(char format, double b);
void prep_timer(void);
void read_timer(void);
void result_summary(void);
void prusage(struct rusage*, struct rusage*,
struct timeval*, struct timeval*);
void tvadd(struct timeval *tsum, struct timeval *t0,struct timeval *t1);
void tvsub(struct timeval *tdiff, struct timeval *t1, struct timeval *t0);
void psecs(int);
void open_log(void);
void close_log(void);
void do_Usage(void);
void do_help(void);
/*--------------------------------------------------------------------------*/
#if !defined(__NTVIS__)
void
sigpipe()
{;
}
#endif
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
int
main(int argc, char **argv)
{
unsigned long addr_tmp;
int c,k;
int sockbufsndsize,sockbufrcvsize;
int sockbuflen;
struct sockaddr_in peer;
int peerlen = sizeof(peer);
#if defined(__NTVIS__)
extern char *optarg;
WSADATA WSAData;
WSAStartup(MAKEWORD(1,1), &WSAData);
#endif /* __NTVIS__ */
if (argc < 2) { do_Usage(); exit(1); }
while (1) {
while ((c=getopt(argc, argv, "hidrstuvxHVBDTLb:f:l:n:p:A:O:S:N:P:R:I:w:")) != -1) {
switch (c) {
case 'w':
timeout = atoi(optarg);
break;
case 'I':
seed = atoi(optarg);
break;
case 'N':
burstn = atoi(optarg);
break;
case 'P':
#if defined(__linux__)
pri = atoi(optarg);
break;
#else
fprintf(stderr, "ttcp: -P option not supported on this OS\n");
exit(1);
#endif
case 'R':
bufmin = atoi(optarg);
break;
case 'S':
udpsleep = atoi(optarg);
if (udpsleep < 0) udpsleep = 0;
/* convert msec arg to usec for usleep, minimum 10ms */
udpsleep = udpsleep * 1000;
break;
case 'H':
hash = 1;
break;
case 'V':
fprintf(stdout,"%s %s\n" , RCSid , VersDate );
exit(0);
case 'B':
b_flag = 1;
break;
case 'L':
log_cnt = 1;
break;
case 'h':
do_help();
exit(1);
break;
case 't':
trans = 1;
break;
case 'r':
trans = 0;
break;
case 'x':
rndm = 1;
break;
case 'd':
options |= SO_DEBUG;
break;
case 'D':
#ifdef TCP_NODELAY
nodelay = 1;
#else
fprintf(stderr,
"ttcp: -D option ignored: TCP_NODELAY socket option not supported\n");
#endif
break;
case 'n':
nbuf = atoi(optarg);
break;
case 'l':
buflen = atoi(optarg);
break;
case 's':
sinkmode = !sinkmode;
break;
case 'p':
port = atoi(optarg);
break;
case 'u':
udp = 1;
break;
case 'v':
verbose = 1;
break;
case 'A':
bufalign = atoi(optarg);
break;
case 'O':
bufoffset = atoi(optarg);
break;
case 'b':
#if defined(SO_SNDBUF) || defined(SO_RCVBUF)
sockbufsize = atoi(optarg);
#else
fprintf(stderr,
"ttcp: -b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported\n");
#endif
break;
case 'f':
fmt = *optarg;
break;
case 'T':
touchdata = 1;
break;
case 'i':
seq_info = 1;
break;
default:
{do_Usage(); exit(1);}
}/*switch */
}/* while getopt() */
argc -= optind;
argv += optind;
optind = 0;
/* check for '--' args */
if (argc == 0) {
/* no more args */
break; /* while (1) */
#if defined(DEBUG)
} else if (!strcmp(argv[0], "--nostart")) {
no_start = 1;
argc--; argv++;
} else if (!strcmp(argv[0], "--nodata")) {
no_data = 1;
argc--; argv++;
} else if (!strcmp(argv[0], "--noend")) {
no_end = 1;
argc--; argv++;
} else if (!strcmp(argv[0], "--debug")) {
debug = 1;
argc--; argv++;
#endif /* DEBUG */
} else if (!strncmp(argv[0], "--", 2)) {
fprintf(stderr, "ttcp: illegal option: %s\n", argv[0]);
do_Usage(); exit(1);
} else {
/* the arg was not a '--' arg */
break; /* while (1) */
}
} /* while (1) */
/* ----------------------- main part ----------------------- */
#if defined(__NTVIS__) && !defined(UNDER_CE)
/* Set "stdin" to have binary mode: */
if (_setmode(_fileno(stdin), _O_BINARY) == -1)
perror("%s: Error setting stdin to binary mode");
/* Set "stdout" to have binary mode: */
if (_setmode(_fileno(stdout), _O_BINARY) == -1)
perror("%s: Error setting stdout to binary mode");
#endif /* __NTVIS__ */
if (log_cnt) open_log();
/* input error checking */
if (burstn > nbuf) {
fprintf(stderr, "ttcp: buffers per burst must be less than or equal to "
"total number of buffers\n");
exit(1);
}
if (bufmin < -1) {
fprintf(stderr, "ttcp: minimum buffer size specified with -R option must "
"be non-negative\n");
exit(1);
}
if (buflen > 65535) {
fprintf(stderr, "ttcp: maximum buffer size specified with -l option must "
"be <= 65536\n");
exit(1);
}
if (bufmin > buflen) {
fprintf(stderr, "ttcp: minimum buffer size specified with -R option must "
"be less than or equal to (maximum) buffer size specified with -l\n");
exit(1);
}
/* buffer allocation */
if (udp && buflen < MIN_UDP_LEN)
buflen = MIN_UDP_LEN; /* 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;
fprintf(stderr,"ttcp%s: buflen=%d, nbuf=%d, align=%d/%d, port=%d\n",
trans?"-t":"-r",buflen, nbuf, bufalign, bufoffset, port);
if (log_cnt)fprintf(fplog," %6d %6d %6d %6d %4d",
buflen, nbuf, bufalign, bufoffset, port);
/* preload the buffer for the transmit condition */
pattern( buf, buflen );
/* seed the random number generator */
if ((bufmin != -1) || (rndm != 0)) {
#if defined(__NTVIS__)
srand(seed);
#else /* ! __NTVIS__ */
srandom(seed);
#endif /* __NTVIS__ */
}
if(trans)
{/* xmitr */
if (argc == 0) {
fprintf(stderr, "ttcp: missing destination host arg\n");
do_Usage(); exit(1);
}
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) sockets_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 defined(__NTVIS__)
sinme.sin_family = AF_INET;
#endif
fd = socket(AF_INET, udp?SOCK_DGRAM:SOCK_STREAM, 0);
#if defined(__NTVIS__)
if (fd == INVALID_SOCKET) sockets_err("socket");
#else
if (fd < 0) sockets_err("socket");
#endif
if (verbose) {
char *label = trans?"ttcp-t":"ttcp-r";
#if defined(UNDER_CE)
SYSTEMTIME SystemTime;
char time_str[30];
GetLocalTime(&SystemTime);
sprintf(time_str, "%s %s %d %02d:%02d:%02d %d\n", weekday[SystemTime.wDayOfWeek], month[SystemTime.wMonth - 1],
SystemTime.wDay, SystemTime.wHour, SystemTime.wMinute, SystemTime.wSecond, SystemTime.wYear);
#else
time_t now;
char *time_str;
time(&now);
time_str = ctime(&now);
#endif
fprintf(stdout,"%s: start time %s", label, time_str);
fprintf(stdout,"%s: File-Descriptor 0x%x Opened\n", label, fd );
}
#if defined(__NTVIS__)
if (bind(fd, (struct sockaddr FAR *)&sinme, sizeof(sinme)) == SOCKET_ERROR)
sockets_err("bind");
#else
if (bind(fd, SOCKADDR_CAST &sinme, sizeof(sinme)) < 0)
sockets_err("bind");
#endif /* __NTVIS__ */
#if defined(SO_SNDBUF) || defined(SO_RCVBUF)
if (sockbufsize)
{
#if defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
if (trans)
{if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (char *)&sockbufsize,
sizeof sockbufsize) < 0)
sockets_err("setsockopt: sndbuf");
}
else
{if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char *)&sockbufsize,
sizeof sockbufsize) < 0)
sockets_err("setsockopt: rcvbuf");
}
#else
if (trans)
{if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
sizeof sockbufsize) < 0)
sockets_err("setsockopt: sndbuf");
}
else
{if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &sockbufsize,
sizeof sockbufsize) < 0)
sockets_err("setsockopt: rcvbuf");
}
#endif /* __lynx__ __sun__ __NTVIS__ */
}
else
{/*
** Added by Daniel Davids to Know Socket-Buffer-Sizes
*/
sockbuflen = sizeof sockbufsndsize;
#if defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
getsockopt(fd, SOL_SOCKET, SO_SNDBUF, (char *)&sockbufsndsize,
&sockbuflen);
sockbuflen = sizeof sockbufrcvsize;
getsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char *)&sockbufrcvsize,
&sockbuflen);
#else
getsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sockbufsndsize, &sockbuflen);
sockbuflen = sizeof sockbufrcvsize;
getsockopt(fd, SOL_SOCKET, SO_RCVBUF, &sockbufrcvsize, &sockbuflen);
#endif /* __lynx__ __sun__ __NTVIS__ */
sockbufsize = ( sockbufsndsize + sockbufrcvsize ) / 2;
if ( sockbufsndsize != sockbufrcvsize )
{fprintf(stderr, "sockbufsndsize=%d, ", sockbufsndsize );
fprintf(stderr, "sockbufrcvsize=%d, ", sockbufrcvsize );
}
}
#endif /* defined(SO_SNDBUF) || defined(SO_RCVBUF) */
if (sockbufsize) fprintf(stderr, "sockbufsize=%d, \n", sockbufsize);
if (log_cnt)
{if (sockbufsize)fprintf(fplog," %6d",sockbufsize);
else fprintf(fplog," 0");
}
#if defined(__linux__)
if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, (char *)&pri, sizeof pri) < 0)
sockets_err("setsockopt: priority");
#endif
if (trans) fprintf(stderr, "# %s sender -> %s #\n", udp?"udp":"tcp", host);
else fprintf(stderr, "# %s receiver #\n", udp?"udp":"tcp");
if (!udp)
{
#if !defined(__NTVIS__)
signal(SIGPIPE, sigpipe);
#endif /* !__NTVIS__ */
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 /* BDS42 */
sockets_err("setsockopt");
}
#ifdef TCP_NODELAY
if (nodelay)
{struct protoent *p;
p = getprotobyname("tcp");
#if defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
if( p && setsockopt(fd, p->p_proto, TCP_NODELAY,
(char *) &one, sizeof(one)) < 0)
#else
if( p && setsockopt(fd, p->p_proto, TCP_NODELAY,
&one, sizeof(one)) < 0)
#endif /* __lynx__ __sun__ __NTVIS__ */
sockets_err("setsockopt: nodelay");
}
#endif /* TCP_NODELAY */
if (connect(fd, SOCKADDR_CAST &sinhim, sizeof(sinhim) ) < 0)
sockets_err("connect");
}/* if (trans) */
else
{/* otherwise, we are the server and should listen for connections */
errno = 0;
#if defined(sgi) || ( defined(__osf__) && !defined(_CFE) )
if( listen(fd,1) <0 )
#else
if( listen(fd,0) <0 ) /* allow a queue of 0 */
#endif
sockets_err("listen");
if(options) {
int err;
#if defined(BSD42)
err = setsockopt(fd, SOL_SOCKET, options, 0, 0);
#elif defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
err = setsockopt(fd, SOL_SOCKET, options, (char *) &one, sizeof(one));
#else
err = setsockopt(fd, SOL_SOCKET, options, &one, sizeof(one));
#endif /* BSD42 */
if (err < 0)
sockets_err("setsockopt");
}
fromlen = sizeof(frominet);
domain = AF_INET;
if (timeout > 0) {
fd_set readfds, exceptfds;
struct timeval tv_timeout;
int n;
tv_timeout.tv_sec = timeout/1000;
tv_timeout.tv_usec = (timeout%1000)*1000;
FD_ZERO(&readfds);
FD_ZERO(&exceptfds);
FD_SET(fd, &readfds);
FD_SET(fd, &exceptfds);
n = select( fd+1, &readfds, NULL, &exceptfds, &tv_timeout );
if (n == 0 || n == SOCKET_ERROR) {
sockets_err("select listen");
return 0;
}
}
if((fd=accept(fd, SOCKADDR_CAST &frominet, &fromlen) ) < 0)
sockets_err("accept");
if (getpeername(fd, SOCKADDR_CAST &peer, &peerlen) < 0)
sockets_err("getpeername");
fprintf(stderr,"ttcp-r: accept from %s\n",inet_ntoa(peer.sin_addr));
} /* otherwise we are ... */
}
prep_timer();
errno = 0;
nbytes = 0.0;
numCalls = 0;
{
register int cnt,multi;
char *pb;
int nb = 0;
unsigned long rbuflen = 0;
multi = nbuf;
if (trans) {
#if !defined(BSD43)
if(udp) {
int err;
int nochecksum_opt = 0;
err = setsockopt(fd, IPPROTO_UDP, UDP_NOCHECKSUM,
(char *)&nochecksum_opt, sizeof(nochecksum_opt));
if (err < 0)
sockets_err("setsockopt");
}
#endif
if(udp && !no_start) {
int start_count = 2;
char start_pkt[START_PKT_LEN];
memset(start_pkt, 0, START_PKT_LEN);
memcpy(start_pkt, start_pattern, START_PATTERN_LEN);
while (start_count-- > 0) {
(void)Nwrite( fd, start_pkt, START_PKT_LEN ); /* rcvr start */
if (udpsleep) {
usleep(udpsleep);
/* clear errno (see man page for errno(3), definition of
EINTR. usleep() uses SIGCONT? ) */
if (errno == EINTR) errno = 0;
} /* udpsleep */
}
}
/* initial seqence num for UDP */
if (udp) buf[0] = 0;
k = burstn;
if (sinkmode) {
while (multi-- > 0 && !no_data) {
if (bufmin == -1) {
rbuflen = buflen;
} else {
/* set rbuflen to a random value evenly distributed in
[bufmin, buflen]. As long as buflen is < 2^16, we can
fit the calculation in 32 bits */
#if defined(__NTVIS__)
rbuflen = (( (unsigned long)rand() *
((unsigned long)(buflen-bufmin+1)) ) >> 15) + bufmin;
#else /* ! __NTVIS__ */
rbuflen = (( ((unsigned long)random() >> 15) *
((unsigned long)(buflen-bufmin+1)) ) >> 16) + bufmin;
#endif /* __NTVIS__ */
}
if (rndm) {
unsigned int i, j, l;
unsigned long data;
if (udp)
l = 1;
else
l = 0;
for (i = l; i < rbuflen; /* null */) {
#if defined(__NTVIS__)
data = (unsigned long)rand();
#else /* ! __NTVIS__ */
data = (unsigned long)random();
#endif /* __NTVIS__ */
/*fprintf(stderr, "%08x\n",data);*/ /* DEBUG */
/* The NT rand() function returns only 16 useful bits! */
for (j = 0; (j < 2/*4*/) && (i < rbuflen) ; j++) {
buf[i++] = (unsigned char)(data & 0xff);
data >>= 8;
}
}
}
if ((cnt=Nwrite(fd,buf,rbuflen)) != (int)rbuflen)
sockets_err("error from the socket write");
/* increment sequence num if UDP */
if (udp) buf[0] = (char)(((unsigned char)(buf[0])+1) & 0xFF);
if (debug)
fprintf(stdout,"ttcp-t: %5d | %d Bytes Written in %d write commands \n",
++nb, cnt, nbuf );
nbytes += rbuflen;
/* hashes */
if (hash) {
fprintf(stderr,"#");
}
/* Check for the end of a burst */
if (--k <= 0) {
k = burstn;
/* sleep to avoid overrunning slower receivers - henry */
if (udpsleep) {
usleep(udpsleep);
/* clear errno (see man page for errno(3), definition of
EINTR. usleep() uses SIGCONT? ) */
if (errno == EINTR) errno = 0;
} /* udpsleep */
}
} /* while */
} /* if (sinkmode) */
else
{
nbuf = 0;
if (bufmin == -1) {
rbuflen = buflen;
} else {
/* set rbuflen to a random value evenly distributed in
[bufmin, buflen]. As long as buflen is < 2^16, we can
fit the calculation in 32 bits */
#if defined(__NTVIS__)
rbuflen = (( (unsigned long)rand() *
((unsigned long)(buflen-bufmin+1)) ) >> 15) + bufmin;
#else /* ! __NTVIS__ */
rbuflen = (( ((unsigned long)random() >> 15) *
((unsigned long)(buflen-bufmin+1)) ) >> 16) + bufmin;
#endif /* __NTVIS__ */
}
if (udp)
pb = &(buf[1]);
else
pb = &(buf[0]);
#if !defined(__NTVIS__) /* else case specific to WINNT */
while((cnt=read(0,pb,rbuflen)) > 0)
#else /* __NTVIS__ */
while((cnt=(int)fread(pb,1,rbuflen,stdin)) > 0)
#endif /* __NTVIS__ */
{
if (udp)
multi = cnt+1; /* don't include seq. num. in count of data */
else
multi = cnt;
if ((cnt=Nwrite(fd,buf,multi)) != (int)multi)
sockets_err("error from the socket write");
/* increment seqence num if UDP */
if (udp) buf[0] = (char)(((unsigned char)(buf[0])+1) & 0xFF);
nbuf++;
if (debug)
fprintf(stdout,"ttcp-t: %5d | %d Bytes Written in %d write commands \n",
++nb, cnt, nbuf );
nbytes += multi;
/* hashes */
if (hash) {
fprintf(stderr,"#");
}
/* Check for the end of a burst */
if (--k <= 0) {
k = burstn;
/* sleep to avoid overrunning slower receivers - henry */
if (udpsleep) {
usleep(udpsleep);
/* clear errno (see man page for errno(3), definition of
EINTR. usleep() uses SIGCONT? ) */
if (errno == EINTR) errno = 0;
} /* udpsleep */
}
if (bufmin == -1) {
rbuflen = buflen;
} else {
/* set rbuflen to a random value evenly distributed in
[bufmin, buflen]. As long as buflen is < 2^16, we can
fit the calculation in 32 bits */
#if defined(__NTVIS__)
rbuflen = (( (unsigned long)rand() *
((unsigned long)(buflen-bufmin+1)) ) >> 15) + bufmin;
#else /* ! __NTVIS__ */
rbuflen = (( ((unsigned long)random() >> 15) *
((unsigned long)(buflen-bufmin+1)) ) >> 16) + bufmin;
#endif /* __NTVIS__ */
}
} /* while */
} /* if (sinkmode) */
if (hash) {
fprintf(stderr,"\n");
fflush(stderr);
}
#if defined(UNDER_CE)
errno = WSAGetLastError();
#endif
if (!errno) {
read_timer();
if(udp && !no_end) {
int end_count = 4;
int data_count = nbuf;
char end_pkt[END_PKT_LEN];
unsigned char* net_byte = &end_pkt[END_PATTERN_LEN];
memset(end_pkt, 0, END_PKT_LEN);
memcpy(end_pkt, end_pattern, END_PATTERN_LEN);
net_byte[3] = data_count & 0xFF; data_count >>= 8;
net_byte[2] = data_count & 0xFF; data_count >>= 8;
net_byte[1] = data_count & 0xFF; data_count >>= 8;
net_byte[0] = data_count & 0xFF;
while (end_count-- > 0) {
Nwrite( fd, end_pkt, END_PKT_LEN ); /* rcvr end */
if (udpsleep && end_count>0) usleep(udpsleep);
}
}
result_summary();
}
} /* trans */
else
{
if (udp) {
udp_rcv_test();
}
else
{/* not udp received transfer */
while ((cnt=Nread(fd,buf,buflen)) > 0)
{if(debug)fprintf(stdout,
"ttcp%s: %5d | %d Bytes Read\n",
trans?"-t":"-r", ++nb, cnt );
nbytes += cnt;
if (!sinkmode) {
#if !defined(__NTVIS__) /* else case specific to WINNT */
if (write(1,buf,cnt) != cnt) err("write");
#else /* __NTVIS__ */
if ((int)fwrite(buf,1,cnt,stdout) != cnt) err("fwrite");
#endif /* __NTVIS__ */
}
}
#if defined(UNDER_CE)
errno = WSAGetLastError();
#endif
if (!errno) {
read_timer();
result_summary();
}
}
}
}
if(errno) err("IO");
#if defined(__NTVIS__)
closesocket ( fd );
#else
close ( fd );
#endif /* __NTVIS__ */
if (verbose) fprintf(stdout,"ttcp%s: File-Descriptor fd 0x%x Closed\n" ,
trans?"-t":"-r", fd );
if (log_cnt) close_log();
fprintf(stderr,"ttcp done.\n");
fflush(stdout);
exit(0);
}
/*--------------------------------------------------------------------------*/
void
udp_rcv_test(void)
{
enum {START_WAIT, DATA_WAIT, DATA_RCV, END_TEST} rcv_state;
enum {START_PKT_TYPE, END_PKT_TYPE, DATA_PKT_TYPE} pkt_type;
int cnt;
int nbuffers = 0;
unsigned int start_pkt_cnt = 0;
unsigned int end_pkt_cnt = 0;
unsigned int data_pkt_cnt = 0;
unsigned int expected_pkt_cnt = 0;
unsigned char seq = 0;
unsigned char buf_seq;
rcv_state = START_WAIT;
while (rcv_state != END_TEST && (cnt=Nread(fd,buf,buflen)) > 0) {
/* Determine the type of packet received */
if (!memcmp(buf, start_pattern, START_PATTERN_LEN)) {
pkt_type = START_PKT_TYPE;
start_pkt_cnt++;
} else if (!memcmp(buf, end_pattern, END_PATTERN_LEN)) {
/* read the expected data packet count from the end packet */
unsigned char* net_byte = buf;
net_byte += END_PATTERN_LEN;
expected_pkt_cnt = ((net_byte[0] << 24) + (net_byte[1] << 16) +
(net_byte[2] << 8) + net_byte[3]);
pkt_type = END_PKT_TYPE;
end_pkt_cnt++;
} else {
data_pkt_cnt++;
pkt_type = DATA_PKT_TYPE;
}
if (rcv_state == START_WAIT) {
/* Wait until we see a vaild start packet */
if (pkt_type == START_PKT_TYPE) {
prep_timer();
rcv_state = DATA_WAIT;
} else if (pkt_type == DATA_PKT_TYPE) {
fprintf(stderr, "ERROR: Missed UDP start packet.\n");
prep_timer();
rcv_state = DATA_RCV;
} else if (pkt_type == END_PKT_TYPE) {
fprintf(stderr, "ERROR: Found UDP end packet before start packet or data.\n");
rcv_state = END_TEST;
}
} else if (rcv_state == DATA_WAIT) {
/* Skip any extra start packets until we see data */
if (pkt_type == START_PKT_TYPE) {
prep_timer();
} else if (pkt_type == DATA_PKT_TYPE) {
rcv_state = DATA_RCV;
} else if (pkt_type == END_PKT_TYPE) {
fprintf(stderr, "ERROR: Found UDP end packet without receiving "
"any data packets.\n");
rcv_state = END_TEST;
}
} else { /* DATA_RCV */
/* Collect data packets until we see a vaild end packet */
if (pkt_type == START_PKT_TYPE) {
/* We missed the end packets and now a new test is
* starting. Report the results of this test then start
* another. */
read_timer();
result_summary();
fprintf(stderr, "ERROR: Found UDP start packet while receiving data.\n"
"ERROR: Expected more data packets or an end packet.\n");
nbytes = 0.0;
nbuffers = 0;
numCalls = 0;
prep_timer();
rcv_state = DATA_WAIT;
} else if (pkt_type == DATA_PKT_TYPE) {
/* loop in this state */
} else if (pkt_type == END_PKT_TYPE) {
/* we used to print results here but now we do when the loop ends */
rcv_state = END_TEST;
}
}
/* tally data packets the same way from whatever state we are in */
if (pkt_type == DATA_PKT_TYPE) {
if (debug)
fprintf(stderr, "ttcp-r: %5d | %d Bytes Read\n", ++nbuffers, cnt);
nbytes += cnt;
if (seq_info) {
/* check seqence num */
buf_seq = (unsigned char)(buf[0]);
if (buf_seq != seq) {
fprintf(stderr, "ERROR: Out of sequence. "
"Buffer %u, seq %u, expected %u\n",
data_pkt_cnt, buf_seq, seq);
seq = buf_seq;
}
seq++;
}
if (!sinkmode) {
#if !defined(__NTVIS__) /* else case specific to WINNT */
if (write(1,&(buf[1]),cnt-1) != cnt-1) err("write");
#else /* __NTVIS__ */
if ((int)fwrite(&(buf[1]),1,cnt-1,stdout) != cnt-1) err("fwrite");
#endif /* __NTVIS__ */
}
}
} /* end-while */
/* normal end of test */
read_timer();
result_summary();
fprintf(stderr, "ttcp-r: packets %u data, %u start, %u end\n",
data_pkt_cnt, start_pkt_cnt, end_pkt_cnt);
if (expected_pkt_cnt != 0) {
int lost_cnt = expected_pkt_cnt - data_pkt_cnt;
fprintf(stderr, "ttcp-r: %g%% (%u/%u) packet loss\n",
100.0 * (double)lost_cnt/(double)expected_pkt_cnt,
lost_cnt, expected_pkt_cnt);
}
}
/*--------------------------------------------------------------------------*/
/* calc_cpu_time(): Time difference, in usecs, of the combined user and
* sys times of the given start and end usage info */
double
calc_cpu_time(
struct rusage *r0,
struct rusage *r1
)
{
double time;
time_t ms;
struct timeval tdiff, tend, tstart;
/* total user delta time + total system delta time */
tvadd( &tend, &r1->ru_utime, &r1->ru_stime ); /* user + sys time @ end */
tvadd( &tstart, &r0->ru_utime, &r0->ru_stime ); /* user + sys time @ start*/
tvsub( &tdiff, &tend, &tstart );
/* useconds */
time = ((double)tdiff.tv_sec)*1e6 + (double)tdiff.tv_usec;
/* debug mseconds */
ms = tdiff.tv_sec*(time_t)1000 + tdiff.tv_usec/(time_t)1000;
if (ms != (time_t)(time/1000.0)) {
fprintf(stderr, "ERROR: time calc mismatch of msec (%d) to usec (%f)\n",
(int)ms, time/1000.0);
}
return time;
}
/*--------------------------------------------------------------------------*/
/* calc_real_time(): Time difference in usecs of the given times */
double
calc_real_time(
struct timeval *t0,
struct timeval *t1
)
{
double time;
time_t ms;
struct timeval tdiff;
tvsub(&tdiff, t1 ,t0);
/* useconds */
time = ((double)tdiff.tv_sec)*1e6 + (double)tdiff.tv_usec;
/* debug mseconds */
ms = tdiff.tv_sec*(time_t)1000 + tdiff.tv_usec/(time_t)1000;
if (ms != (time_t)(time/1000.0)) {
fprintf(stderr, "ERROR: time calc mismatch of msec (%d) to usec (%f)\n",
(int)ms, time/1000.0);
}
return time;
}
/*--------------------------------------------------------------------------*/
void
result_summary(void)
{
char* label = trans ? "ttcp-t" : "ttcp-r";
double cput = calc_cpu_time(&ru0, &ru1);
double realt = calc_real_time(&time0, &time1);
double t_min;
double bytes_per_sec;
/* lower end boundary conditions */
t_min = 10.0; /* 10 usec */
#if defined(__NTVIS__)
t_min = 1000.0; /* 1 msec */
#endif
if (cput <= t_min) { /* value in usec */
cput = t_min;
fprintf(stderr,"%s: cpu time too short set at %.0f usec, NOT accurate result.\n",
label,t_min);
}
if (realt <= t_min) { /* value in usec */
realt = t_min;
fprintf(stderr,"%s: real time too short, set at %.0f usec, NOT accurate result.\n",
label,t_min);
}
bytes_per_sec = (nbytes/realt)*1e6;
fprintf(stderr,"%s: %.0f bytes in %.06f real seconds = %s/sec +++\n",
label, nbytes, realt/1e6, outfmt(fmt, bytes_per_sec));
if (verbose)
fprintf(stderr,"%s: %.0f bytes in %.06f cpu seconds = %s/cpu sec\n",
label, nbytes,cput/1e6, outfmt(fmt, (nbytes/cput)*1e6));
fprintf(stderr,"%s: %ld I/O calls, %.3f msec(real)/call, %.3f msec(cpu)/call\n",
label, numCalls,
(numCalls>0)?(realt/(double)numCalls)/1000.0:0.0,
(numCalls>0)?(cput /(double)numCalls)/1000.0:0.0);
fprintf(stderr,"%s: ", label);
prusage(&ru0, &ru1, &time0, &time1);
fprintf(stderr,"\n");
if (verbose)
printf("%s: buffer address %#x\n", label, (unsigned int)buf);
if (fplog) {
struct timeval tdiff;
/* User time */
tvsub(&tdiff, &ru1.ru_utime, &ru0.ru_utime);
fprintf(fplog," %ld.%06ld", (long)tdiff.tv_sec, (long)tdiff.tv_usec);
/* System time */
tvsub(&tdiff, &ru1.ru_stime, &ru0.ru_stime);
fprintf(fplog," %ld.%06ld", (long)tdiff.tv_sec, (long)tdiff.tv_usec);
/* Percent of cput usage */
fprintf(fplog," %.1f", 100.0 * (cput/realt));
/* validity of real time mesurment */
fprintf(fplog, (realt == t_min)?" 0":" 1");
/* bytes, seconds, MBytes/sec, IO calls */
fprintf(fplog," %10.0f %4.06f %4.3f %6ld",
nbytes, realt/1e6, bytes_per_sec/(1024.0*1024.0), numCalls);
}
}
/*--------------------------------------------------------------------------*/
void
sockets_err(char* s)
{
#if defined(__NTVIS__)
int err = WSAGetLastError();
char* prefix = trans?"ttcp-t":"ttcp-r";
fprintf(stderr,"%s: %s\n", prefix, s);
fprintf(stderr,"%s: errno=%d\n", prefix, err);
exit(1);
#else
err(s);
#endif /* __NTVIS__ */
}
/*--------------------------------------------------------------------------*/
void
err(char *s)
{
char* prefix = trans?"ttcp-t":"ttcp-r";
fprintf(stderr,"%s: ", prefix);
perror(s);
fprintf(stderr,"%s: errno=%d\n", prefix, errno);
exit(1);
}
/*--------------------------------------------------------------------------*/
void
mes(char *s)
{
fprintf(stderr,"ttcp%s: %s\n", trans?"-t":"-r", s);
}
/*--------------------------------------------------------------------------*/
void
pattern( char *cp, int cnt )
{
register char c;
register int cnt1;
cnt1 = cnt;
c = 0;
while( cnt1-- > 0 ) {
while( !isprint((c&0x7F)) ) c++;
*cp++ = (c++&0x7F);
}
}
/*--------------------------------------------------------------------------*/
char *
outfmt(char format, double b)
{
static char obuf[50];
double giga = 1024.0 * 1024.0 * 1024.0;
double mega = 1024.0 * 1024.0;
double kilo = 1024.0;
if (format == 'A') {
if (b >= giga)
format = 'G';
else if (b >= mega)
format = 'M';
else if (b >= kilo)
format = 'K';
else
format = 'B';
}
switch (format) {
case 'G':
sprintf(obuf, "%.3f GB", b / giga);
break;
case 'M':
sprintf(obuf, "%.3f MB", b / mega);
break;
case 'K':
sprintf(obuf, "%.3f KB", b / kilo);
break;
case 'B':
sprintf(obuf, "%4f B", b);
break;
case 'g':
sprintf(obuf, "%.3f Gbit", b * 8.0 / giga);
break;
case 'm':
sprintf(obuf, "%.3f Mbit", b * 8.0 / mega);
break;
case 'k':
sprintf(obuf, "%.3f Kbit", b * 8.0 / kilo);
break;
case 'b':
sprintf(obuf, "%4f b", b * 8.0);
break;
default:
sprintf(obuf, "default..........");
}
return obuf;
}
/*--------------------------------------------------------------------------*/
#if defined(SYSV)
/*ARGSUSED*/
#if defined(__osf__)
/* getrusage defined in the system lib */
#else
#if defined(__lynx__)
/* getrusage defined in the system lib */
#else
#if defined(__sun__)
/* getrusage defined in the system lib */
#else
int
getrusage(ignored, ru)
int ignored;
register struct rusage *ru;
{
#if defined(__NTVIS__)
HANDLE phd;
FILETIME CreateTime, ExitTime, KernelTime, UserTime;
SYSTEMTIME SysTime;
#if defined(UNDER_CE)
phd = GetCurrentThread();
if( GetThreadTimes(phd, &CreateTime, &ExitTime, &KernelTime, &UserTime)
!= TRUE)
#else
phd = GetCurrentProcess();
if( GetProcessTimes(phd, &CreateTime, &ExitTime, &KernelTime, &UserTime)
!= TRUE)
#endif
{ru->ru_stime.tv_sec = 0;
ru->ru_stime.tv_usec = 0;
ru->ru_utime.tv_sec = 0;
ru->ru_utime.tv_usec = 0;
}
else
{
(void) FileTimeToSystemTime(&KernelTime, &SysTime);
/*
* fprintf(stdout,
* "System sec=%d, msec=%d\n", SysTime.wSecond, SysTime.wMilliseconds);
*/
ru->ru_stime.tv_sec = SysTime.wSecond;
ru->ru_stime.tv_usec = SysTime.wMilliseconds * 1000;
(void) FileTimeToSystemTime(&UserTime, &SysTime);
/*
* fprintf(stdout,
* " User sec=%d, msec=%d\n", SysTime.wSecond, SysTime.wMilliseconds);
*/
ru->ru_utime.tv_sec = SysTime.wSecond;
ru->ru_utime.tv_usec = SysTime.wMilliseconds * 1000;
}
#else /* __NTVIS__ */
struct tms buftime;
times(&buftime);
/* Assumption: HZ <= 2147 (LONG_MAX/1000000) */
/* info : in lynxOS HZ is called TICKSPERSEC (<conf.h>) */
ru->ru_stime.tv_sec = buftime.tms_stime / HZ;
ru->ru_stime.tv_usec = ((buftime.tms_stime % HZ) * 1000000) / HZ;
ru->ru_utime.tv_sec = buftime.tms_utime / HZ;
ru->ru_utime.tv_usec = ((buftime.tms_utime % HZ) * 1000000) / HZ;
#endif /* __NTVIS__ */
return(0);
} /* static getrusage */
#endif /* __sun__ */
#endif /* __lynx__ */
#endif /* __osf__ */
#endif /* SYSV */
/*--------------------------------------------------------------------------*/
#if defined(SYSV)
#if defined(__hpux__) || defined(_AIX) || defined(__sun__)
/* gettimeofday defined in the system lib */
#else
# if defined (__osf__) ||defined (__lynx__)
/* gettimeofday defined in the system lib */
#else
/*ARGSUSED*/
static
gettimeofday(tp, zp)
struct timeval *tp;
struct timezone *zp;
{
#if defined(__NTVIS__)
#if defined(UNDER_CE)
SYSTEMTIME SystemTime;
GetLocalTime(&SystemTime);
tp->tv_sec = SystemTime.wSecond;
tp->tv_usec = SystemTime.wMilliseconds * 1000;
#else
struct _timeb timeptr;
_ftime(&timeptr);
tp->tv_sec = timeptr.time;
tp->tv_usec = timeptr.millitm * 1000;
#endif
#else /* all cases */
tp->tv_sec = time(0);
tp->tv_usec = 0;
#endif /* __NTVIS__ */
return(1);
} /* static gettimeofday */
#endif /*__osf__ || __lynx__ */
#endif /* __hpux__ || _AIX || __sun__ || __osf__*/
#endif /* SYSV */
/*--------------------------------------------------------------------------*/
/*
* P R E P _ T I M E R
*/
void
prep_timer(void)
{
gettimeofday(&time0, (struct timezone *)0);
getrusage(RUSAGE_SELF, &ru0);
}
/*--------------------------------------------------------------------------*/
/*
* R E A D _ T I M E R
*
*/
void
read_timer(void)
{
getrusage(RUSAGE_SELF, &ru1);
gettimeofday(&time1, (struct timezone *)0);
}
/*--------------------------------------------------------------------------*/
/* Print the process usage calculated from timers values extracted
* before and after the transfer execution.
*/
void
prusage(
struct rusage *r0, struct rusage *r1,
struct timeval *t0, struct timeval *t1
)
{
struct timeval tdiff;
int t, ms;
register char *cp;
double cput = calc_cpu_time(r0, r1);
double realt = calc_real_time(t0, t1);
/* t == total user delta time + total system delta time */
if (debug)
{
printf("timers : end startup\n");
printf("user (sec) : %9ld %9ld\n",r1->ru_utime.tv_sec,
r0->ru_utime.tv_sec);
printf("user (usec): %9ld %9ld\n",r1->ru_utime.tv_usec,
r0->ru_utime.tv_usec);
printf("sys (sec) : %9ld %9ld\n",r1->ru_stime.tv_sec,
r0->ru_stime.tv_sec);
printf("sys (usec): %9ld %9ld\n",r1->ru_stime.tv_usec,
r0->ru_stime.tv_usec);
printf("time (sec) : %9ld %9ld\n",t1->tv_sec,t0->tv_sec);
printf("time (usec): %9ld %9ld\n",t1->tv_usec,t0->tv_usec);
}
/* for the AIX debug, most counters are outside a good range
printf(" r0 r1\n");
printf("ru_ixrss %20ld %20ld \n", r0->ru_ixrss ,r1->ru_ixrss );
printf("ru_idrss %20ld %20ld \n", r0->ru_idrss ,r1->ru_idrss );
printf("ru_isrss %20ld %20ld \n", r0->ru_isrss ,r1->ru_isrss );
printf("ru_minflt %20ld %20ld \n", r0->ru_minflt ,r1->ru_minflt );
printf("ru_majflt %20ld %20ld \n", r0->ru_majflt ,r1->ru_majflt );
printf("ru_nswap %20ld %20ld \n", r0->ru_nswap ,r1->ru_nswap );
printf("ru_inblock %20ld %20ld \n", r0->ru_inblock ,r1->ru_inblock );
printf("ru_oublock %20ld %20ld \n", r0->ru_oublock ,r1->ru_oublock );
printf("ru_msgsnd %20ld %20ld \n", r0->ru_msgsnd ,r1->ru_msgsnd );
printf("ru_msgrcv %20ld %20ld \n", r0->ru_msgrcv ,r1->ru_msgrcv );
printf("ru_nsignals %20ld %20ld \n", r0->ru_nsignals ,r1->ru_nsignals);
printf("ru_nvcsw %20ld %20ld \n", r0->ru_nvcsw ,r1->ru_nvcsw );
printf("ru_nivcsw %20ld %20ld \n", r0->ru_nivcsw ,r1->ru_nivcsw );
*/
/* cpu time in mseconds */
t = (int)(cput / 1000.0);
/* ms == value of the internal clock at the end of the xfer */
/* also called real time. */
/* real time in mseconds */
ms = (int)(realt / 1000.0);
/* The display is based on variables provided by the function getrusage
Info located in : /usr/include/sys/resource.h
*/
#if defined(SYSV)
#if defined(_AIX)
/* with AIX cernsp most counters are wrong
* cp = "%Uuser %Ssys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Ccsw\0";
*/
cp = "%Uuser %Ssys %Ereal %P\0";
#else
#if defined(__osf__)
cp = "%Uuser %Ssys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Ccsw\0";
#else
#if defined(sgi) /* IRIX 3.3 will show 0 for %M,%F,%R,%C */
cp = "%Uuser %Ssys %Ereal %P %Mmaxrss %F+%Rpf %Ccsw\0";
#else
#if defined(__Lynx__)
cp = "%Uuser %Ssys %Ereal %P\0";
#else
cp = "%Uuser %Ssys %Ereal %P\0"; /* all SYSV except those mentionned */
#endif /*__lynx__ */
#endif /* sgi */
#endif /*__osf__ */
#endif /* _AIX */
#else /* BSD system */
cp = "%Uuser %Ssys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Ccsw\0";
#endif /* SYSV */
for (; *cp; cp++) {
if (*cp != '%') {
putc(*cp, stderr);
/* *outp++ = *cp; */
} else if (cp[1])
switch(*++cp) {
case 'U':
tvsub(&tdiff, &r1->ru_utime, &r0->ru_utime);
fprintf(stderr,"%ld.%06ld", (long)tdiff.tv_sec, (long)tdiff.tv_usec);
break;
case 'S':
tvsub(&tdiff, &r1->ru_stime, &r0->ru_stime);
fprintf(stderr,"%ld.%06ld", (long)tdiff.tv_sec, (long)tdiff.tv_usec);
break;
case 'E':
psecs( ms / 1000);
break;
case 'P':
fprintf(stderr,"%.1f%%", (cput*100.0 / (realt ? realt : 1.0)) );
break;
#if !defined(SYSV) || defined(__osf__) || defined(_AIX)
case 'W':
{
int i = r1->ru_nswap - r0->ru_nswap;
fprintf(stderr,"%d", i);
break;
}
case 'X':
fprintf(stderr,"%ld", t == 0 ? 0 : (r1->ru_ixrss-r0->ru_ixrss)/t);
break;
case 'D':
fprintf(stderr,"%ld", t == 0 ? 0 :
(r1->ru_idrss+r1->ru_isrss - (r0->ru_idrss+r0->ru_isrss))/t);
break;
case 'K':
fprintf(stderr,"%ld", t == 0 ? 0 :
((r1->ru_ixrss+r1->ru_isrss+r1->ru_idrss) -
(r0->ru_ixrss+r0->ru_idrss+r0->ru_isrss))/t);
break;
case 'M':
fprintf(stderr,"%ld", r1->ru_maxrss/2);
break;
case 'F':
fprintf(stderr,"%ld", r1->ru_majflt-r0->ru_majflt);
break;
case 'R':
fprintf(stderr,"%ld", r1->ru_minflt-r0->ru_minflt);
break;
case 'I':
fprintf(stderr,"%ld", r1->ru_inblock-r0->ru_inblock);
break;
case 'O':
fprintf(stderr,"%ld", r1->ru_oublock-r0->ru_oublock);
break;
case 'C':
fprintf(stderr,"%ld+%ld",
r1->ru_nvcsw-r0->ru_nvcsw, r1->ru_nivcsw-r0->ru_nivcsw);
break;
#endif /* !SYSV || __osf__ */
default:
putc(*cp, stderr);
break;
} /* switch */
} /* for */
}
/*--------------------------------------------------------------------------*/
/* add 2 times structure and move usec bigger than 1000000 to sec */
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;
}
/*--------------------------------------------------------------------------*/
/* substract 2 time structure (t1 > t0) */
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;
}
/*--------------------------------------------------------------------------*/
void
psecs(int l)
{
int i = (int)l/3600;
if (i) {
/* hours:min:sec */
fprintf(stderr,"%d:", i);
i = (int)l % 3600;
fprintf(stderr,"%.2d:%.2d", i/60, i%60);
} else {
/* min:sec */
i = (int)l;
fprintf(stderr,"%d:%.2d", i/60, i%60);
}
}
/*--------------------------------------------------------------------------*/
/* N R E A D */
int
Nread(SOCKET s, void* bufp, int count )
{
#if defined(__lynx__) || defined(__svr4__) || defined(_AIX) || defined(__NTVIS__) || defined(__FreeBSD__)
struct sockaddr from;
#else
struct sockaddr_in from;
#endif
int len = sizeof(from);
register int cnt;
if (timeout > 0) {
fd_set readfds, exceptfds;
struct timeval tv_timeout;
int n;
tv_timeout.tv_sec = timeout/1000;
tv_timeout.tv_usec = (timeout%1000)*1000;
FD_ZERO(&readfds);
FD_ZERO(&exceptfds);
FD_SET(s, &readfds);
FD_SET(s, &exceptfds);
n = select( s+1, &readfds, NULL, &exceptfds, &tv_timeout );
if (n == SOCKET_ERROR) {
sockets_err("select read");
} else if (n == 0) {
return (0);
}
}
if( udp )
{cnt = recvfrom( s, bufp, count, 0, SOCKADDR_CAST &from, &len );
numCalls++;
}
else
{if( b_flag ) cnt = mread( s, bufp, count ); /* fill bufp */
else
{
#if defined(__NTVIS__)
cnt = recv( s, bufp, count, 0 );
#else
cnt = read( s, bufp, count );
#endif /* __NTVIS__ */
numCalls++;
}
if (touchdata && cnt > 0)
{register int c = cnt, sum = 0;
register char *b = bufp;
while (c--) sum += *b++;
}
}
/* rchrch printf (" numcall %d read buffer %d bytes \n",numCalls,cnt); */
return(cnt);
}
/*--------------------------------------------------------------------------*/
/* N W R I T E */
int
Nwrite( int s, void* bufp, int count )
{
register int cnt;
if( udp )
{
again:
cnt = sendto( s, bufp, count, 0, SOCKADDR_CAST &sinhim,
sizeof(sinhim) );
numCalls++;
#if defined(__NTVIS__)
if( cnt<0 && WSAENOBUFS == WSAGetLastError())
#else
if( cnt<0 && errno == ENOBUFS )
#endif /* __NTVIS__ */
{ delay(18000); errno = 0; goto again; }
} else /* if (udp) */
{
#if defined(__NTVIS__)
cnt = send( s, bufp, count, 0 );
numCalls++;
#else
cnt = write( s, bufp, count );
numCalls++;
#endif /* __NTVIS__ */
}
return(cnt);
}
/*--------------------------------------------------------------------------*/
void
delay(us)
int us;
{
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = (time_t)us;
#if defined(__hpux__)
select(1, 0, 0, 0, &tv);
#else
select(1, (fd_set *)0, (fd_set *)0, (fd_set *)0, &tv);
#endif
}
/*--------------------------------------------------------------------------*/
/* 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(int s, char* bufp, unsigned n)
{
register unsigned count = 0;
register int nread;
do
{
#if defined(__NTVIS__)
nread = recv(s, bufp, n-count, 0);
#else
nread = read(s, bufp, n-count);
#endif /* __NTVIS__ */
numCalls++;
if(nread < 0) {perror("ttcp_mread"); return(-1); }
if(nread == 0) return((int)count);
count += (unsigned)nread;
bufp += nread;
}while(count < n);
return((int)count);
}
/*--------------------------------------------------------------------------*/
void
open_log()
{static long sysTicks;
#if defined(UNDER_CE)
SYSTEMTIME SystemTime;
#endif
sprintf(logfile,"%s_%s",logfile_head,trans?"t":"r");
fprintf(stderr,"open the log file >%s<\n",logfile);
if ((fplog = fopen(logfile,"r")) == NULL)
{if ((fplog = fopen(logfile,"a+")) == NULL)
{fprintf(stderr,"Failure : creation of the file >%s< \n",logfile );
exit(1);
}
else
{fprintf(fplog," creation date : ");
/* get date */
#if defined(UNDER_CE)
GetLocalTime(&SystemTime);
sprintf(fplog,"%02d-%02d-%02d %02d:%02d\n", SystemTime.wDay, month[SystemTime.wMonth - 1],
SystemTime.wYear, SystemTime.wHour, SystemTime.wMinute);
#else
time(&sysTicks);
tms = localtime(&sysTicks);
fprintf(fplog,"%02d-%02d-%02d %02d:%02d\n",
tms->tm_mday, tms->tm_mon, tms->tm_year,tms->tm_hour, tms->tm_min);
#endif
/* An other version will produce : Mon Aug 4 16:32:16 1997
* long lDxcomsTicks; char *pDateTime;
* time(&lDxcomsTicks);
* pDateTime = ctime(&lDxcomsTicks); *(pDateTime+24) = '\0';
* fprintf(fplog," ttcp called : %s", pDateTime);
*/
fprintf(fplog,"format\n");
fprintf(fplog,",buflen, nbuf(byte), bufalign(byte), bufoffset(byte)");
fprintf(fplog,", port, sockbufsize(byte), UserTime(sec), SysTime(sec)\n");
fprintf(fplog,", CPUusage(%%), Validity, nbytes(byte), realt(sec)");
fprintf(fplog,", rate(MB/sec), I/O call, hours*3600+min*60+sec\n\n");
/* day-month-year, hour:minute\n\n"); */
}
} /* file already exist */
else
{fclose (fplog);
if ((fplog = fopen(logfile,"a+")) == NULL)
{fprintf(stderr,"Failure : access of the file >%s< \n",logfile );
exit(1);
}
}
}
/*--------------------------------------------------------------------------*/
void
close_log()
{
#if defined(UNDER_CE)
SYSTEMTIME SystemTime;
GetLocalTime(&SystemTime);
fprintf(fplog," %d\n", SystemTime.wHour * 3600 + SystemTime.wMinute * 60 + SystemTime.wSecond);
#else
static long sysTicks;
time(&sysTicks);
tms = localtime(&sysTicks);
fprintf(fplog," %d\n",((tms->tm_hour)*3600 + (tms->tm_min)*60 + tms->tm_sec));
#endif
fclose(fplog);
fflush(fplog);
}
/*--------------------------------------------------------------------------*/
/* routine emulating UNIX function under NT */
#if defined(__NTVIS__)
/*---------------------------------------------------------------------------*/
static void
error(char *pch)
{
if (!opterr) {
return; // without printing
}
fprintf(stderr, "%s: %s: %c\n",
(NULL != progname) ? progname : "getopt", pch, optopt);
}
/*---------------------------------------------------------------------------*/
int
getopt(int argc, char **argv, char *ostr)
{
static char *place = EMSG; /* option letter processing */
register char *oli; /* option letter list index */
if (!*place) {
// update scanning pointer
if (optind >= argc || *(place = argv[optind]) != '-' || !*++place) {
place = EMSG;
return -1;
}
// place now points to the first char past the initial '-'
if (place[0] == '-') {
// found "--"
// Was the word just a '--'?
if (place[1] == '\0')
++optind; // yes, so consume the word
// otherwise, the '--' was the start of a longer word,
// so do not consume it.
place = EMSG;
return -1;
}
}
/* option letter okay? */
if ((optopt = (int)*place++) == (int)':'
|| !(oli = strchr(ostr, optopt))) {
if (!*place) {
++optind;
}
error("illegal option");
return BADCH;
}
if (*++oli != ':') {
/* don't need argument */
optarg = NULL;
if (!*place)
++optind;
} else {
/* need an argument */
if (*place) {
optarg = place; /* no white space */
} else if (argc <= ++optind) {
/* no arg */
place = EMSG;
error("option requires an argument");
return BADCH;
} else {
optarg = argv[optind]; /* white space */
}
place = EMSG;
++optind;
}
return optopt; // return option letter
}
void
usleep(unsigned int microseconds)
{
Sleep(microseconds/1000);
}
#endif /* __NTVIS__ */
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
void
do_help()
{
char More_help[] =
" Details about the reply: \n"
" Example: \n"
" ttcp-t: buflen=8192, nbuf=100, align=16384/0, port=5010\n"
" ttcp-t: File-Descriptor 0x4 Opened\n"
" # tcp sender -> <host> #\n"
" ttcp-t: 819200 bytes in 1.152557 real seconds = 694.109 KB/sec +++\n"
" ttcp-t: 100 I/O calls, 11.526 msec(real)/call, 0.213 msec(cpu)/call\n"
" ttcp-t: 0.001914user 0.019388sys 0:01real 1% 9i+58d 190maxrss 1+2pf 177+180csw\n"
" ttcp-t: buffer address 0x28000\n"
" ttcp-t: File-Descriptor fd 0x4 Closed\n"
" ttcp done.\n\n"
"cpu seconds == (sec) elapse ru_utime + elapse ru_stime.\n"
" ru_utime == The total amount of time running in user mode.\n"
" ru_stime == The total amount of time spent in the system.\n"
" executing on behalf of the process.\n"
"real seconds == elapse time calculated by the system timer (date).\n"
"I/O calls == I/O call to the driver.\n"
"msec/call == average elapse time (Real seconds) between each I/O.\n"
"calls/sec == invert of msec/call.\n"
"user == (sec.msec) elaspe ru_utime.\n"
"sys == (sec.msec) elapse ru_stime.\n"
"real == (min:sec) CPU seconds.\n"
"%% == Real seconds / CPU seconds.\n"
"(ru_ixrss)i+(ru_idrss)d\n"
" ru_ixrss == An integral value indicating the amount of memory \n"
" used by the text segment that was also shared among\n"
" other processes. This value is expressed in units of\n"
" kilobytes * seconds-of-execution and is calculated \n"
" by adding the number of shared memory pages in use \n"
" each time the internal system clock ticks, and then\n"
" averaging over one-second intervals.\n"
" ru_idrss == An integral value of the amount of unshared memory \n"
" in the data segment of a process (expressed in \n"
" units of kilobytes * seconds-of-execution).\n";
char More_help1[] =
" (ru_maxrss/2)maxrss.\n"
" ru_maxrss == The maximum size, in kilobytes, of the used\n"
" resident set size. \n"
" (ru_majflt)+(ru_minflt)pf : Page fault\n"
" ru_majflt == The number of page faults serviced that required\n"
" I/O activity.\n"
" ru_minflt == The number of page faults serviced without any\n"
" I/O activity. In this case, I/O activity is \n"
" avoided by reclaiming a page frame from the list \n"
" of pages awaiting reallocation. \n"
"(ru_nvcsw)+(ru_nivcsw)csw : context switch\n"
" ru_nvcsw == The number of times a context switch resulted \n"
" because a process voluntarily gave up the \n"
" processor before its time slice was completed. \n"
" This usually occurs while the process waits \n"
" for availability of a resource.\n"
" ru_nivcsw == The number of times a context switch resulted \n"
" because a higher priority process ran or because\n"
" the current process exceeded its time slice.\n\n";
char More_help2[] =
"log file format :\n"
" buflen, nbuf(byte), bufalign(byte), bufoffset(byte)\n"
" port, sockbufsize(byte), UserTime(sec), SysTime(sec), CPUusage(%)\n"
" nbytes(byte), realt(sec), rate(MB/sec), I/O call,\n"
" hours*3600+min*60+sec\n\n";
fprintf(stderr,More_help);
fprintf(stderr,More_help1);
fprintf(stderr,More_help2);
}
/*---------------------------------------------------------------------------*/
void
do_Usage()
{
char Usage[] =
" Usage: ttcp -t [-options] host [ < in ] ttcp -r [-options > out]\n"
"Example: ttcp -t -s -v -n100 host ttcp -r -s -v -n100\n"
"Common options:\n"
" -V prints version number and date of last modification\n"
" -L create and append all results to a file named ttcp_log\n"
" -h more help\n"
" -l ## length of bufs read from or written to network (default 8192,\n"
" max 65535)\n"
" -u use UDP instead of TCP\n"
" -p ## port number to send to or listen at (default 5010)\n"
#if defined(__linux__)
" -P ## link-layer priority (default 0)\n"
#endif
" -s (ttcp -t) : source a pattern to network\n"
" (ttcp -r) : sink (discard) all data from network\n"
" -A ## align the start of buffers to this modulus (default 16384)\n"
" -O ## start buffers at this offset from the modulus (default 0)\n"
" -v verbose: print more statistics\n"
" -d set SO_DEBUG socket option\n"
" -b ## set socket buffer size (if supported)\n"
" -f X format for rate: b,B = bits, bytes k,K = kilo{bits,bytes};\n"
" m,M = mega{bits,bytes}; g,G = giga{bits,bytes}\n"
" -w ## set timeout value (in milliseconds) to exit if no receive data or tcp connect\n"
"Options specific to (ttcp -t) :\n"
" -n ## number of source bufs written to network (default 2048)\n"
" -x use random data in tcp/udp frames (-I provides seed)\n"
" -D don't buffer TCP writes (sets TCP_NODELAY socket option)\n"
" -H print hash marks to indicate progress, one per buffer\n"
" -I init/seed value for RNG when sending random size bufs (default 1)\n"
" -N ## number of source bufs per burst, i.e between sleeps (default 1)\n"
" -R ## send random size buffers with minimum size specified, max size\n"
" is value of -l option\n"
" -S ## millisecs between bursts (only used for udp, 10ms resolution)\n"
"Options specific to (ttcp -r) :\n"
" -B for -s, only output full blocks as specified by -l (for TAR)\n"
" -T \"touch\": access each byte as it's read\n"
" -i report information on out of order sequence numbers\n"
#if defined(DEBUG)
"Options for debug:\n"
" --nostart do not send UDP start packets\n"
" --noend do not send UDP end packets\n"
" --nodata do not send UDP data packets\n"
" --debug print extra debug outputs\n"
#endif /* DEBUG */
;
fprintf(stderr,Usage);
}
/* Define automatic Emacs variables for consistent code formatting */
/* Local Variables: */
/* c-basic-offset:2 */
/* indent-tabs-mode:nil */
/* End: */
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