4 * Test TCP connection. Makes a connection on port 5001
5 * and transfers fabricated buffers or data copied from stdin.
7 * Usable on 4.2, 4.3, and 4.1a systems by defining one of
9 * Machines using System V with BSD sockets should define SYSV.
11 * Modified for operation under 4.2BSD, 18 Dec 84
13 * Minor improvements, Mike Muuss and Terry Slattery, 16-Oct-85.
14 * Modified in 1989 at Silicon Graphics, Inc.
15 * catch SIGPIPE to be able to print stats when receiver has died
16 * for tcp, don't look for sentinel during reads to allow small transfers
17 * increased default buffer size to 8K, nbuf to 2K to transfer 16MB
18 * moved default port to 5001, beyond IPPORT_USERRESERVED
19 * make sinkmode default because it is more popular,
20 * -s now means don't sink/source
21 * count number of read/write system calls to see effects of
22 * blocking from full socket buffers
23 * for tcp, -D option turns off buffered writes (sets TCP_NODELAY sockopt)
24 * buffer alignment options, -A and -O
25 * print stats in a format that's a bit easier to use with grep & awk
26 * for SYSV, mimic BSD routines to use most of the existing timing code
27 * Modified by Steve Miller of the University of Maryland, College Park
28 * -b sets the socket buffer size (SO_SNDBUF/SO_RCVBUF)
29 * Modified Sept. 1989 at Silicon Graphics, Inc.
30 * restored -s sense at request of tcs@brl
31 * Modified Oct. 1991 at Silicon Graphics, Inc.
32 * use getopt(3) for option processing, add -f and -T options.
33 * SGI IRIX 3.3 and 4.0 releases don't need #define SYSV.
35 * Modified --> Nov 1996 at CERN (Daniel DAVIDS)
36 * printout of the Socket-Buffer-Sizes
37 * configured for HP-UX 9000 OS
38 * configured for Windows NT OS
39 * Modified Dec 1996 at CERN (Jacques ROCHEZ)
41 * addaptation to the gcc compiler (ANSI)
42 * configured for Lynx OS
43 * automatic format for the rate display (G/M/K/)bytes/sec
44 * added log (L) and more help (h) options.
45 * Modified May 1997 at CERN (Jacques ROCHEZ)
46 * removed the mes() function following err() function.
47 * changed the default port to 5010
48 * Modified jul 1997 at CERN (Jacques ROCHEZ)
49 * adapted the timing calculation in microseconds
50 * addapted the code for Vsisual C++ under NT4.0
51 * Modified aug 1997 at CERN (Jacques ROCHEZ)
52 * initialise to 0 the variables nbytes, numcalls
53 * moved the buffer pre-load outside the measured timed area
54 * Distribution Status -
55 * Public Domain. Distribution Unlimited.
56 * Modified jun 1998 at Epigram
57 * - print hash marks to indicate prograss on transmitting side
58 * - sleep between bursts of buffers
59 * - set number of buffers/burst
60 * Modified jul 1998 at Epigram
61 * - send random size buffers
62 * Modified jan 1999 at Epigram (WES)
63 * - added start and end patterns to UDP start and end packets
64 * - added handling of missed start, end, or data packets for UDP tests
67 static char RCSid
[] = "ttcp.c $- CERN Revision: 3.8 (dev level) -$";
70 static char VersDate
[] = "Epigram 15-jul-98";
72 /* system dependent setting
73 * ------------------------
74 * uname -a,gcc -v a.c are the tools used
76 * Platform/OS #define MACRO predefined
77 * ----------- ------- ---------------------------------------------------
78 * SunOS OS BSD43 __unix__ __sun__ __sparc__
79 * SUN Solaris SYSV __unix__ __sun__ __sparc__ __svr4__
80 * SGI-IRIX < 3.3 SYSV set as #define sgi
81 * HP-UX 9000 SYSV __unix__ __hpux__ __hp9k8__
82 * OSF/1 V3.2 SYSV __unix__ __osf__ __alpha__
83 * OSF/1 V4.0 SYSV __unix__ __osf__ __alpha__ _CFE
84 * LynxOS SYSV __unix__ __lynx__ __powerpc__
85 * Windows NT SYSV __WINNT__ __i386__ __M_COFF__
86 * AIX SYSV _AIX _AIX32 _POWER _IBMR2 _ARCH_PWR
89 * Micosoft Visual C++ compiler under WindowNT 4.0
90 * Windows NT _WINDOWS WIN32
96 * Machines using System V with BSD sockets should define SYSV.
100 * LynxOS : gcc -c ttcp.c -o ttcp.o | gcc -o ttcp -O ttcp.o -lnetinet -lc_p -lc
103 /* -------------attempt to set an automatic UNIX OS family detection -------*/
105 #if defined(__hp9k8__) || defined(__osf__) || defined(__srv4__)
108 #if defined(__lynx__)
111 /* for solaris (__srv4__) the parameters SYSV is already set */
113 /* version A.09.01 'key words' differs from A.09.05 A */
118 #if defined(__sun__)&&!defined(__srv4__)
119 #define BSD43 /* changed by BSD42 if necessary */
122 #if defined(_WIN32) /* Window NT 4.0 compiled with VisualC++ 4 */
127 #if defined(__FreeBSD__)
131 #if defined(__linux__)
134 /*--------------------------------------------------------------------------*/
136 #if !defined(UNDER_CE)
140 #include <sys/types.h>
146 #include <sys/socket.h>
147 #include <netinet/in.h>
148 #include <netinet/tcp.h>
149 #include <arpa/inet.h>
151 #include <sys/time.h> /* struct timeval */
152 #include <sys/resource.h> /* definition of struct rusage */
154 #else /* else of __osf__ */
155 #if defined(__NTVIS__)
156 #include <winsock2.h>
157 #include <windows.h> /* required for all Windows applications */
158 #include <ws2tcpip.h>
161 #if !defined(UNDER_CE)
162 #include <sys\timeb.h>
167 struct rusage
{ struct timeval ru_utime
, ru_stime
; };
168 #define RUSAGE_SELF 0
169 #else /* else of __NTVIS__ */
170 #if defined(__lynx__)
171 #include <socket.h> /* located in /usr/include/..... */
172 #include <netinet/in.h>
173 #include <netinet/tcp.h>
174 #include <arpa/inet.h>
177 #include <resource.h> /* definition of struct rusage */
178 #include <sys/times.h>
179 #define RUSAGE_SELF 0
180 #include <conf.h> /* definition of TICKSPERSEC (HZ) */
181 #include <sys/param.h>
183 #else /* else of __Lynx__ */
184 #if defined(__svr4__)
185 #include <sys/socket.h>
187 #include <netinet/in.h>
188 #include <netinet/tcp.h>
189 #include <arpa/inet.h>
191 #include <sys/time.h> /* struct timeval */
192 #include <sys/resource.h> /* definition of struct rusage */
193 #include <sys/times.h>
194 #define RUSAGE_SELF 0
195 #include <sys/param.h>
197 #else /* else of __svr4__ all SYSV cases except those mentionned before */
198 #include <sys/socket.h>
199 #include <netinet/in.h>
200 #include <netinet/tcp.h>
201 #include <arpa/inet.h>
203 #include <sys/time.h> /* struct timeval */
204 #include <sys/resource.h> /* definition of struct rusage */
205 #include <sys/times.h>
206 #define RUSAGE_SELF 0
207 #include <sys/param.h>
209 #endif /* __svr4__ */
210 #endif /* __lynx__ */
211 #endif /* __NTVIS__ */
214 #else /* else of SYSV it is a BSD OS */
217 #include <sys/socket.h>
218 #include <netinet/in.h>
219 #include <netinet/tcp.h>
220 #include <arpa/inet.h>
222 #if defined(__linux__)
223 #include <time.h> /* struct timeval */
225 #include <sys/time.h> /* struct timeval */
227 #include <sys/resource.h> /* definition of struct rusage */
228 #include <unistd.h> /* for usleep() - henry */
229 #define SOCKET_ERROR -1
233 #if defined(__NTVIS__)
235 #if defined(_DEBUG) /* usual debug symbol for VC++ */
239 void usleep(unsigned int microseconds
);
241 #define bcopy(a,b,n) memcpy((b), (a), (n))
242 #define bzero(a,n) memset((a), 0, (n))
246 int getopt(int argc
, char **argv
, char *optstring
);
248 extern char *optarg
; // returned arg to go with this option
249 extern int optind
; // index to next argv element to process
250 extern int opterr
; // should error messages be printed?
251 extern int optopt
; //
256 /* get option letter from argument vector */
258 opterr
= 1, // should error messages be printed?
259 optind
= 1, // index into parent argv vector
260 optopt
; // character checked for validity
261 char *optarg
; // argument associated with option
264 char *progname
; // may also be defined elsewhere
267 /* sockaddr_in == file server address structure
269 * Socket address, internet style. declared in : /netinet/in.h
270 * struct sockaddr_in {short sin_family;
272 * struct in_addr sin_addr;
276 * Structure used by kernel to store most addresses. declared in ./sys/socket.h
277 * struct sockaddr{u_short sa_family; address family
278 * char sa_data[14]; up to 14 bytes of direct address
280 * PS : sin stand for "socket internet number"
287 #if defined(__CONST_SOCKADDR_ARG)
288 #define SOCKADDR_CAST (__CONST_SOCKADDR_ARG)
289 #elif defined(__lynx__) || defined(__sun__) || defined(_AIX) || defined(__FreeBSD__) || defined(__NTVIS__)
290 #define SOCKADDR_CAST (struct sockaddr FAR *)
292 #define SOCKADDR_CAST
296 struct sockaddr_in sockaddr
; /* done in ./X11/Xdmcp.h */
299 struct sockaddr_in sinme
; /* is the socket struct. in the local host */
300 struct sockaddr_in sinhim
; /* is the socket struc. in the remote host */
302 #if defined(__lynx__) || defined(__svr4__) || defined(_AIX)
303 struct sockaddr frominet
;
305 struct sockaddr_in frominet
;
306 #endif /* __lynx__ */
310 #if !defined(__NTVIS__)
312 #endif /* __NTVIS__ */
313 SOCKET fd
; /* fd of network socket */
315 #if !defined(__lynx__)
321 FILE *fplog
= NULL
; /* file pointer for the log file */
322 char logfile
[100]; /* file name for the log */
323 static char logfile_head
[] ="ttcp_log"; /* header name for the log */
324 int buflen
= 8 * 1024; /* length of buffer */
325 char *buf
; /* ptr to dynamic buffer */
326 int nbuf
= 2 * 1024; /* number of buffers to send in sinkmode */
328 #define START_PKT_LEN 4
329 #define START_PATTERN_LEN 4
330 #define END_PKT_LEN 8
331 #define END_PATTERN_LEN 4
332 #define MIN_UDP_LEN 5
334 char start_pattern
[START_PATTERN_LEN
] = {1, 2, 3, 4};
335 char end_pattern
[END_PATTERN_LEN
] = {2, 2, 2, 2};
337 int bufoffset
= 0; /* align buffer to this */
338 int bufalign
= 16*1024; /* modulo this */
340 int udp
= 0; /* 0 = tcp, !0 = udp */
341 int options
= 0; /* socket options */
342 int one
= 1; /* for 4.3 BSD style setsockopt() */
343 short port
= 5010; /* TCP port number */
344 char *host
; /* ptr to name of host */
345 int rndm
= 0; /* 0="normal", !0=random data */
346 int trans
; /* 0=receive, !0=transmit mode */
347 int timeout
; /* read timeout in millisec */
348 int debug
= 0; /* 0=No-Debug, 1=Debug-Set-On */
349 int sinkmode
= 0; /* 0=normal I/O, !0=sink/source mode */
350 int verbose
= 0; /* 0=print basic info, 1=print cpu rate,
351 * proc resource usage. */
352 int nodelay
= 0; /* set TCP_NODELAY socket option */
353 int pri
= 0; /* link layer priority */
354 int b_flag
= 0; /* use mread() */
355 int log_cnt
= 0; /* append result to a log */
356 int sockbufsize
= 0; /* socket buffer size to use */
357 char fmt
= 'A'; /* output format:
358 * b = bits, B = bytes,
359 * k = kilobits, K = kilobytes,
360 * m = megabits, M = megabytes,
361 * g = gigabits, G = gigabytes,
362 * A = automatic Xbytes (default) */
363 int touchdata
= 0; /* access data after reading */
364 int seq_info
= 0; /* report out of order seq nums */
366 int hash
= 0; /* print hash marks for each buffer */
367 int udpsleep
= 0; /* sleep in between udp buffers */
368 int burstn
= 1; /* number of buffers per burst */
369 int bufmin
= -1; /* minimum buffer size to use when
370 sending random-size buffers */
371 unsigned int seed
= 1; /* seed for random number generator
372 used for random buffer lengths */
373 int no_start
= 0; /* skip the start frames for UDP */
374 int no_data
= 0; /* skip all data frames for UDP */
375 int no_end
= 0; /* skip the end frames for UDP */
377 double nbytes
; /* bytes on net */
378 unsigned long numCalls
; /* # of I/O system calls */
380 struct hostent
*addr
;
384 #if defined(UNDER_CE)
386 static char *weekday
[] ={"Sun", "Mon","Tues", "Wed", "Thurs", "Fri", "Sat"};
387 static char *month
[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "July", "Aug", "Sep", "Oct", "Nov", "Dec"};
388 #define perror printf
391 /*--------------------------------------------------------------------------*/
392 static struct timeval time0
; /* Time at which timing started */
393 static struct timeval time1
;
394 static struct rusage ru0
; /* Resource utilization at the start */
395 static struct rusage ru1
;
396 static struct tm
*tms
; /* system time structure */
399 /*-----------Prototype functions definitions -------------------------------*/
400 /*--------------------------------------------------------------------------*/
402 /* ANSI input/output functions (stdio.h) */
404 #if defined(__lynx__)
405 int getopt(int, char**, char*);
406 int gettimeofday(struct timeval
*tp
, struct timezone
*tzp
);
409 #if defined(__svr4__)
415 #if defined(__hpux__)
417 #if defined(__NTVIS__)
419 #if defined(BSD42) || defined(BSD43)
422 int printf( char*, ...);
423 int fprintf(FILE*,char*, ...);
425 int getopt(int, char**, char*);
426 int gettimeofday(struct timeval
*tp
, struct timezone
*tzp
);
427 #endif /* BSD42 || BSD43 */
428 #endif /* __NTVIS__ */
429 #endif /* __hpux__ */
431 #endif /* __svr4__ */
432 #endif /* __lynx__ */
434 int main(int argc
, char* argv
[]);
435 #if ( (!(defined(BSD42))) && (!(defined(BSD43))) && (!(defined(__NTVIS__))) )
436 int read(int, char*, int);
437 int write(int, char*, int);
439 #endif /* !(BSD42) && !(BSD43) */
440 int fclose(FILE *stream
);
442 #if !defined(BSD43) && !defined(__NTVIS__)
443 void bzero(char*,int);
444 void bcopy(char*, char*, int);
445 char strncpy(char *s1
,char *s2
,size_t n
);
451 /* ANSI socket functions prototype /sys/socket.h */
452 #if defined(__lynx__)
453 int select(int, fd_set
*, fd_set
*, fd_set
*, struct timeval
*);
456 #if defined(__svr4__) && !defined(sparc)
458 /* informations in : /usr/include/sys/socket.h */
459 int socket(int, int, int);
460 int connect(int, struct sockaddr
*, int);
461 int bind(int, struct sockaddr
*, int);
462 int listen(int, int);
463 int accept(int, struct sockaddr
*, int *);
464 int sendto(int, const char *, int, int, const struct sockaddr
*, int);
465 int recvfrom(int, char *, int, int, struct sockaddr
*, int *);
466 int getpeername(int, struct sockaddr
*, int *);
467 int getsockopt(int, int, int, char *, int *);
468 int select(int, fd_set
*, fd_set
*, fd_set
*, struct timeval
*);
472 int select(unsigned long, void *, void *, void *, struct timeval
*);
475 #if defined(__hpux__)
476 int getrusage(int who
,struct rusage
*rusage
);
479 #if defined(__NTVIS__)
482 #if defined(BSD42) || defined(BSD43)
486 int socket(int, int, int);
487 int connect(int s
,struct sockaddr_in
*name
, int namelen
);
488 int bind(int s
,struct sockaddr
*name
,int namelen
);
489 int listen(int, int);
490 int accept(int, struct sockaddr_in
*, int *);
491 int sendto(int, char *, int, int, struct sockaddr_in
*, int);
492 int recvfrom(int, char *, int, int, struct sockaddr_in
*, int *);
493 int getpeername(int, struct sockaddr
*, int *);
494 int setsockopt(int, int, int, char *, int);
496 int getsockopt(int, int, int, char*, int*);
497 int select(int, fd_set
*, fd_set
*, fd_set
*, struct timeval
*);
499 #endif /* BSD42 || BSD43 */
500 #endif /* __hpux__ */
502 #endif /* __svr4__ */
503 #endif /* __lynx__ */
504 #endif /* __NTVIS__ */
506 /* ttcp prototype functions */
507 void udp_rcv_test(void);
508 double calc_cpu_time(struct rusage
*r0
, struct rusage
*r1
);
509 double calc_real_time(struct timeval
*t0
, struct timeval
*t1
);
510 int getrusage(int who
,struct rusage
*rusage
);
511 void sockets_err(char*);
514 void pattern(char *, int);
515 int Nread(SOCKET
, void *, int);
516 int Nwrite(int, void *, int);
518 int mread(int, char *,unsigned);
519 char *outfmt(char format
, double b
);
520 void prep_timer(void);
521 void read_timer(void);
522 void result_summary(void);
523 void prusage(struct rusage
*, struct rusage
*,
524 struct timeval
*, struct timeval
*);
525 void tvadd(struct timeval
*tsum
, struct timeval
*t0
,struct timeval
*t1
);
526 void tvsub(struct timeval
*tdiff
, struct timeval
*t1
, struct timeval
*t0
);
529 void close_log(void);
533 /*--------------------------------------------------------------------------*/
534 #if !defined(__NTVIS__)
540 /*--------------------------------------------------------------------------*/
541 /*--------------------------------------------------------------------------*/
543 main(int argc
, char **argv
)
545 unsigned long addr_tmp
;
547 int sockbufsndsize
,sockbufrcvsize
;
549 struct sockaddr_in peer
;
550 int peerlen
= sizeof(peer
);
552 #if defined(__NTVIS__)
555 WSAStartup(MAKEWORD(1,1), &WSAData
);
556 #endif /* __NTVIS__ */
558 if (argc
< 2) { do_Usage(); exit(1); }
561 while ((c
=getopt(argc
, argv
, "hidrstuvxHVBDTLb:f:l:n:p:A:O:S:N:P:R:I:w:")) != -1) {
564 timeout
= atoi(optarg
);
570 burstn
= atoi(optarg
);
573 #if defined(__linux__)
577 fprintf(stderr
, "ttcp: -P option not supported on this OS\n");
581 bufmin
= atoi(optarg
);
584 udpsleep
= atoi(optarg
);
585 if (udpsleep
< 0) udpsleep
= 0;
586 /* convert msec arg to usec for usleep, minimum 10ms */
587 udpsleep
= udpsleep
* 1000;
593 fprintf(stdout
,"%s %s\n" , RCSid
, VersDate
);
622 "ttcp: -D option ignored: TCP_NODELAY socket option not supported\n");
629 buflen
= atoi(optarg
);
632 sinkmode
= !sinkmode
;
644 bufalign
= atoi(optarg
);
647 bufoffset
= atoi(optarg
);
650 #if defined(SO_SNDBUF) || defined(SO_RCVBUF)
651 sockbufsize
= atoi(optarg
);
654 "ttcp: -b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported\n");
668 {do_Usage(); exit(1);}
670 }/* while getopt() */
676 /* check for '--' args */
679 break; /* while (1) */
681 } else if (!strcmp(argv
[0], "--nostart")) {
684 } else if (!strcmp(argv
[0], "--nodata")) {
687 } else if (!strcmp(argv
[0], "--noend")) {
690 } else if (!strcmp(argv
[0], "--debug")) {
694 } else if (!strncmp(argv
[0], "--", 2)) {
695 fprintf(stderr
, "ttcp: illegal option: %s\n", argv
[0]);
698 /* the arg was not a '--' arg */
699 break; /* while (1) */
704 /* ----------------------- main part ----------------------- */
706 #if defined(__NTVIS__) && !defined(UNDER_CE)
707 /* Set "stdin" to have binary mode: */
708 if (_setmode(_fileno(stdin
), _O_BINARY
) == -1)
709 perror("%s: Error setting stdin to binary mode");
710 /* Set "stdout" to have binary mode: */
711 if (_setmode(_fileno(stdout
), _O_BINARY
) == -1)
712 perror("%s: Error setting stdout to binary mode");
713 #endif /* __NTVIS__ */
715 if (log_cnt
) open_log();
717 /* input error checking */
719 fprintf(stderr
, "ttcp: buffers per burst must be less than or equal to "
720 "total number of buffers\n");
724 fprintf(stderr
, "ttcp: minimum buffer size specified with -R option must "
725 "be non-negative\n");
728 if (buflen
> 65535) {
729 fprintf(stderr
, "ttcp: maximum buffer size specified with -l option must "
733 if (bufmin
> buflen
) {
734 fprintf(stderr
, "ttcp: minimum buffer size specified with -R option must "
735 "be less than or equal to (maximum) buffer size specified with -l\n");
739 /* buffer allocation */
741 if (udp
&& buflen
< MIN_UDP_LEN
)
742 buflen
= MIN_UDP_LEN
; /* send more than the sentinel size */
744 if ( (buf
= (char *)malloc(buflen
+bufalign
)) == (char *)NULL
)
747 buf
+=(bufalign
- ((int)buf
% bufalign
) + bufoffset
) % bufalign
;
749 fprintf(stderr
,"ttcp%s: buflen=%d, nbuf=%d, align=%d/%d, port=%d\n",
750 trans
?"-t":"-r",buflen
, nbuf
, bufalign
, bufoffset
, port
);
751 if (log_cnt
)fprintf(fplog
," %6d %6d %6d %6d %4d",
752 buflen
, nbuf
, bufalign
, bufoffset
, port
);
754 /* preload the buffer for the transmit condition */
755 pattern( buf
, buflen
);
757 /* seed the random number generator */
758 if ((bufmin
!= -1) || (rndm
!= 0)) {
759 #if defined(__NTVIS__)
761 #else /* ! __NTVIS__ */
763 #endif /* __NTVIS__ */
769 fprintf(stderr
, "ttcp: missing destination host arg\n");
773 bzero((char *)&sinhim
, sizeof(sinhim
));
777 sinhim
.sin_family
= AF_INET
;
778 sinhim
.sin_addr
.s_addr
= inet_addr(host
);
781 {if ((addr
=gethostbyname(host
)) == NULL
) sockets_err("bad hostname");
782 sinhim
.sin_family
= addr
->h_addrtype
;
783 bcopy(addr
->h_addr
,(char*)&addr_tmp
, addr
->h_length
);
784 sinhim
.sin_addr
.s_addr
= addr_tmp
;
786 sinhim
.sin_port
= htons(port
);
787 sinme
.sin_port
= 0; /* free choice */
791 sinme
.sin_port
= htons(port
);
793 #if defined(__NTVIS__)
794 sinme
.sin_family
= AF_INET
;
797 fd
= socket(AF_INET
, udp
?SOCK_DGRAM
:SOCK_STREAM
, 0);
799 #if defined(__NTVIS__)
800 if (fd
== INVALID_SOCKET
) sockets_err("socket");
802 if (fd
< 0) sockets_err("socket");
806 char *label
= trans
?"ttcp-t":"ttcp-r";
807 #if defined(UNDER_CE)
808 SYSTEMTIME SystemTime
;
811 GetLocalTime(&SystemTime
);
812 sprintf(time_str
, "%s %s %d %02d:%02d:%02d %d\n", weekday
[SystemTime
.wDayOfWeek
], month
[SystemTime
.wMonth
- 1],
813 SystemTime
.wDay
, SystemTime
.wHour
, SystemTime
.wMinute
, SystemTime
.wSecond
, SystemTime
.wYear
);
819 time_str
= ctime(&now
);
821 fprintf(stdout
,"%s: start time %s", label
, time_str
);
822 fprintf(stdout
,"%s: File-Descriptor 0x%x Opened\n", label
, fd
);
825 #if defined(__NTVIS__)
826 if (bind(fd
, (struct sockaddr FAR
*)&sinme
, sizeof(sinme
)) == SOCKET_ERROR
)
829 if (bind(fd
, SOCKADDR_CAST
&sinme
, sizeof(sinme
)) < 0)
831 #endif /* __NTVIS__ */
834 #if defined(SO_SNDBUF) || defined(SO_RCVBUF)
837 #if defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
839 {if (setsockopt(fd
, SOL_SOCKET
, SO_SNDBUF
, (char *)&sockbufsize
,
840 sizeof sockbufsize
) < 0)
841 sockets_err("setsockopt: sndbuf");
844 {if (setsockopt(fd
, SOL_SOCKET
, SO_RCVBUF
, (char *)&sockbufsize
,
845 sizeof sockbufsize
) < 0)
846 sockets_err("setsockopt: rcvbuf");
852 {if (setsockopt(fd
, SOL_SOCKET
, SO_SNDBUF
, &sockbufsize
,
853 sizeof sockbufsize
) < 0)
854 sockets_err("setsockopt: sndbuf");
857 {if (setsockopt(fd
, SOL_SOCKET
, SO_RCVBUF
, &sockbufsize
,
858 sizeof sockbufsize
) < 0)
859 sockets_err("setsockopt: rcvbuf");
861 #endif /* __lynx__ __sun__ __NTVIS__ */
865 ** Added by Daniel Davids to Know Socket-Buffer-Sizes
867 sockbuflen
= sizeof sockbufsndsize
;
868 #if defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
869 getsockopt(fd
, SOL_SOCKET
, SO_SNDBUF
, (char *)&sockbufsndsize
,
871 sockbuflen
= sizeof sockbufrcvsize
;
872 getsockopt(fd
, SOL_SOCKET
, SO_RCVBUF
, (char *)&sockbufrcvsize
,
875 getsockopt(fd
, SOL_SOCKET
, SO_SNDBUF
, &sockbufsndsize
, &sockbuflen
);
876 sockbuflen
= sizeof sockbufrcvsize
;
877 getsockopt(fd
, SOL_SOCKET
, SO_RCVBUF
, &sockbufrcvsize
, &sockbuflen
);
878 #endif /* __lynx__ __sun__ __NTVIS__ */
879 sockbufsize
= ( sockbufsndsize
+ sockbufrcvsize
) / 2;
881 if ( sockbufsndsize
!= sockbufrcvsize
)
882 {fprintf(stderr
, "sockbufsndsize=%d, ", sockbufsndsize
);
883 fprintf(stderr
, "sockbufrcvsize=%d, ", sockbufrcvsize
);
886 #endif /* defined(SO_SNDBUF) || defined(SO_RCVBUF) */
888 if (sockbufsize
) fprintf(stderr
, "sockbufsize=%d, \n", sockbufsize
);
891 {if (sockbufsize
)fprintf(fplog
," %6d",sockbufsize
);
892 else fprintf(fplog
," 0");
895 #if defined(__linux__)
896 if (setsockopt(fd
, SOL_SOCKET
, SO_PRIORITY
, (char *)&pri
, sizeof pri
) < 0)
897 sockets_err("setsockopt: priority");
901 if (trans
) fprintf(stderr
, "# %s sender -> %s #\n", udp
?"udp":"tcp", host
);
902 else fprintf(stderr
, "# %s receiver #\n", udp
?"udp":"tcp");
906 #if !defined(__NTVIS__)
907 signal(SIGPIPE
, sigpipe
);
908 #endif /* !__NTVIS__ */
911 {/* We are the client if transmitting */
915 if( setsockopt(fd
, SOL_SOCKET
, options
, 0, 0) < 0)
917 if( setsockopt(fd
, SOL_SOCKET
, options
, (char *)&one
, sizeof(one
)) < 0)
919 sockets_err("setsockopt");
924 p
= getprotobyname("tcp");
925 #if defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
926 if( p
&& setsockopt(fd
, p
->p_proto
, TCP_NODELAY
,
927 (char *) &one
, sizeof(one
)) < 0)
929 if( p
&& setsockopt(fd
, p
->p_proto
, TCP_NODELAY
,
930 &one
, sizeof(one
)) < 0)
931 #endif /* __lynx__ __sun__ __NTVIS__ */
932 sockets_err("setsockopt: nodelay");
934 #endif /* TCP_NODELAY */
935 if (connect(fd
, SOCKADDR_CAST
&sinhim
, sizeof(sinhim
) ) < 0)
936 sockets_err("connect");
939 {/* otherwise, we are the server and should listen for connections */
943 #if defined(sgi) || ( defined(__osf__) && !defined(_CFE) )
944 if( listen(fd
,1) <0 )
946 if( listen(fd
,0) <0 ) /* allow a queue of 0 */
948 sockets_err("listen");
953 err
= setsockopt(fd
, SOL_SOCKET
, options
, 0, 0);
954 #elif defined(__lynx__) || defined(__sun__) || defined(__NTVIS__)
955 err
= setsockopt(fd
, SOL_SOCKET
, options
, (char *) &one
, sizeof(one
));
957 err
= setsockopt(fd
, SOL_SOCKET
, options
, &one
, sizeof(one
));
960 sockets_err("setsockopt");
962 fromlen
= sizeof(frominet
);
965 fd_set readfds
, exceptfds
;
966 struct timeval tv_timeout
;
969 tv_timeout
.tv_sec
= timeout
/1000;
970 tv_timeout
.tv_usec
= (timeout
%1000)*1000;
974 FD_SET(fd
, &readfds
);
975 FD_SET(fd
, &exceptfds
);
977 n
= select( fd
+1, &readfds
, NULL
, &exceptfds
, &tv_timeout
);
978 if (n
== 0 || n
== SOCKET_ERROR
) {
979 sockets_err("select listen");
983 if((fd
=accept(fd
, SOCKADDR_CAST
&frominet
, &fromlen
) ) < 0)
984 sockets_err("accept");
986 if (getpeername(fd
, SOCKADDR_CAST
&peer
, &peerlen
) < 0)
987 sockets_err("getpeername");
989 fprintf(stderr
,"ttcp-r: accept from %s\n",inet_ntoa(peer
.sin_addr
));
991 } /* otherwise we are ... */
1000 register int cnt
,multi
;
1003 unsigned long rbuflen
= 0;
1010 int nochecksum_opt
= 0;
1011 err
= setsockopt(fd
, IPPROTO_UDP
, UDP_NOCHECKSUM
,
1012 (char *)&nochecksum_opt
, sizeof(nochecksum_opt
));
1014 sockets_err("setsockopt");
1018 if(udp
&& !no_start
) {
1019 int start_count
= 2;
1020 char start_pkt
[START_PKT_LEN
];
1021 memset(start_pkt
, 0, START_PKT_LEN
);
1022 memcpy(start_pkt
, start_pattern
, START_PATTERN_LEN
);
1024 while (start_count
-- > 0) {
1025 (void)Nwrite( fd
, start_pkt
, START_PKT_LEN
); /* rcvr start */
1028 /* clear errno (see man page for errno(3), definition of
1029 EINTR. usleep() uses SIGCONT? ) */
1030 if (errno
== EINTR
) errno
= 0;
1035 /* initial seqence num for UDP */
1036 if (udp
) buf
[0] = 0;
1040 while (multi
-- > 0 && !no_data
) {
1045 /* set rbuflen to a random value evenly distributed in
1046 [bufmin, buflen]. As long as buflen is < 2^16, we can
1047 fit the calculation in 32 bits */
1048 #if defined(__NTVIS__)
1049 rbuflen
= (( (unsigned long)rand() *
1050 ((unsigned long)(buflen
-bufmin
+1)) ) >> 15) + bufmin
;
1051 #else /* ! __NTVIS__ */
1052 rbuflen
= (( ((unsigned long)random() >> 15) *
1053 ((unsigned long)(buflen
-bufmin
+1)) ) >> 16) + bufmin
;
1054 #endif /* __NTVIS__ */
1058 unsigned int i
, j
, l
;
1066 for (i
= l
; i
< rbuflen
; /* null */) {
1067 #if defined(__NTVIS__)
1068 data
= (unsigned long)rand();
1069 #else /* ! __NTVIS__ */
1070 data
= (unsigned long)random();
1071 #endif /* __NTVIS__ */
1072 /*fprintf(stderr, "%08x\n",data);*/ /* DEBUG */
1073 /* The NT rand() function returns only 16 useful bits! */
1074 for (j
= 0; (j
< 2/*4*/) && (i
< rbuflen
) ; j
++) {
1075 buf
[i
++] = (unsigned char)(data
& 0xff);
1081 if ((cnt
=Nwrite(fd
,buf
,rbuflen
)) != (int)rbuflen
)
1082 sockets_err("error from the socket write");
1083 /* increment sequence num if UDP */
1084 if (udp
) buf
[0] = (char)(((unsigned char)(buf
[0])+1) & 0xFF);
1087 fprintf(stdout
,"ttcp-t: %5d | %d Bytes Written in %d write commands \n",
1094 fprintf(stderr
,"#");
1097 /* Check for the end of a burst */
1101 /* sleep to avoid overrunning slower receivers - henry */
1104 /* clear errno (see man page for errno(3), definition of
1105 EINTR. usleep() uses SIGCONT? ) */
1106 if (errno
== EINTR
) errno
= 0;
1111 } /* if (sinkmode) */
1120 /* set rbuflen to a random value evenly distributed in
1121 [bufmin, buflen]. As long as buflen is < 2^16, we can
1122 fit the calculation in 32 bits */
1123 #if defined(__NTVIS__)
1124 rbuflen
= (( (unsigned long)rand() *
1125 ((unsigned long)(buflen
-bufmin
+1)) ) >> 15) + bufmin
;
1126 #else /* ! __NTVIS__ */
1127 rbuflen
= (( ((unsigned long)random() >> 15) *
1128 ((unsigned long)(buflen
-bufmin
+1)) ) >> 16) + bufmin
;
1129 #endif /* __NTVIS__ */
1137 #if !defined(__NTVIS__) /* else case specific to WINNT */
1138 while((cnt
=read(0,pb
,rbuflen
)) > 0)
1139 #else /* __NTVIS__ */
1140 while((cnt
=(int)fread(pb
,1,rbuflen
,stdin
)) > 0)
1141 #endif /* __NTVIS__ */
1145 multi
= cnt
+1; /* don't include seq. num. in count of data */
1148 if ((cnt
=Nwrite(fd
,buf
,multi
)) != (int)multi
)
1149 sockets_err("error from the socket write");
1150 /* increment seqence num if UDP */
1151 if (udp
) buf
[0] = (char)(((unsigned char)(buf
[0])+1) & 0xFF);
1155 fprintf(stdout
,"ttcp-t: %5d | %d Bytes Written in %d write commands \n",
1162 fprintf(stderr
,"#");
1165 /* Check for the end of a burst */
1169 /* sleep to avoid overrunning slower receivers - henry */
1172 /* clear errno (see man page for errno(3), definition of
1173 EINTR. usleep() uses SIGCONT? ) */
1174 if (errno
== EINTR
) errno
= 0;
1181 /* set rbuflen to a random value evenly distributed in
1182 [bufmin, buflen]. As long as buflen is < 2^16, we can
1183 fit the calculation in 32 bits */
1184 #if defined(__NTVIS__)
1185 rbuflen
= (( (unsigned long)rand() *
1186 ((unsigned long)(buflen
-bufmin
+1)) ) >> 15) + bufmin
;
1187 #else /* ! __NTVIS__ */
1188 rbuflen
= (( ((unsigned long)random() >> 15) *
1189 ((unsigned long)(buflen
-bufmin
+1)) ) >> 16) + bufmin
;
1190 #endif /* __NTVIS__ */
1195 } /* if (sinkmode) */
1198 fprintf(stderr
,"\n");
1202 #if defined(UNDER_CE)
1203 errno
= WSAGetLastError();
1207 if(udp
&& !no_end
) {
1209 int data_count
= nbuf
;
1210 char end_pkt
[END_PKT_LEN
];
1211 unsigned char* net_byte
= &end_pkt
[END_PATTERN_LEN
];
1212 memset(end_pkt
, 0, END_PKT_LEN
);
1213 memcpy(end_pkt
, end_pattern
, END_PATTERN_LEN
);
1214 net_byte
[3] = data_count
& 0xFF; data_count
>>= 8;
1215 net_byte
[2] = data_count
& 0xFF; data_count
>>= 8;
1216 net_byte
[1] = data_count
& 0xFF; data_count
>>= 8;
1217 net_byte
[0] = data_count
& 0xFF;
1219 while (end_count
-- > 0) {
1220 Nwrite( fd
, end_pkt
, END_PKT_LEN
); /* rcvr end */
1221 if (udpsleep
&& end_count
>0) usleep(udpsleep
);
1233 {/* not udp received transfer */
1234 while ((cnt
=Nread(fd
,buf
,buflen
)) > 0)
1235 {if(debug
)fprintf(stdout
,
1236 "ttcp%s: %5d | %d Bytes Read\n",
1237 trans
?"-t":"-r", ++nb
, cnt
);
1240 #if !defined(__NTVIS__) /* else case specific to WINNT */
1241 if (write(1,buf
,cnt
) != cnt
) err("write");
1242 #else /* __NTVIS__ */
1243 if ((int)fwrite(buf
,1,cnt
,stdout
) != cnt
) err("fwrite");
1244 #endif /* __NTVIS__ */
1247 #if defined(UNDER_CE)
1248 errno
= WSAGetLastError();
1258 if(errno
) err("IO");
1260 #if defined(__NTVIS__)
1264 #endif /* __NTVIS__ */
1266 if (verbose
) fprintf(stdout
,"ttcp%s: File-Descriptor fd 0x%x Closed\n" ,
1267 trans
?"-t":"-r", fd
);
1269 if (log_cnt
) close_log();
1271 fprintf(stderr
,"ttcp done.\n");
1276 /*--------------------------------------------------------------------------*/
1280 enum {START_WAIT
, DATA_WAIT
, DATA_RCV
, END_TEST
} rcv_state
;
1281 enum {START_PKT_TYPE
, END_PKT_TYPE
, DATA_PKT_TYPE
} pkt_type
;
1284 unsigned int start_pkt_cnt
= 0;
1285 unsigned int end_pkt_cnt
= 0;
1286 unsigned int data_pkt_cnt
= 0;
1287 unsigned int expected_pkt_cnt
= 0;
1288 unsigned char seq
= 0;
1289 unsigned char buf_seq
;
1291 rcv_state
= START_WAIT
;
1292 while (rcv_state
!= END_TEST
&& (cnt
=Nread(fd
,buf
,buflen
)) > 0) {
1293 /* Determine the type of packet received */
1294 if (!memcmp(buf
, start_pattern
, START_PATTERN_LEN
)) {
1295 pkt_type
= START_PKT_TYPE
;
1297 } else if (!memcmp(buf
, end_pattern
, END_PATTERN_LEN
)) {
1298 /* read the expected data packet count from the end packet */
1299 unsigned char* net_byte
= buf
;
1300 net_byte
+= END_PATTERN_LEN
;
1301 expected_pkt_cnt
= ((net_byte
[0] << 24) + (net_byte
[1] << 16) +
1302 (net_byte
[2] << 8) + net_byte
[3]);
1303 pkt_type
= END_PKT_TYPE
;
1307 pkt_type
= DATA_PKT_TYPE
;
1310 if (rcv_state
== START_WAIT
) {
1311 /* Wait until we see a vaild start packet */
1312 if (pkt_type
== START_PKT_TYPE
) {
1314 rcv_state
= DATA_WAIT
;
1315 } else if (pkt_type
== DATA_PKT_TYPE
) {
1316 fprintf(stderr
, "ERROR: Missed UDP start packet.\n");
1318 rcv_state
= DATA_RCV
;
1319 } else if (pkt_type
== END_PKT_TYPE
) {
1320 fprintf(stderr
, "ERROR: Found UDP end packet before start packet or data.\n");
1321 rcv_state
= END_TEST
;
1323 } else if (rcv_state
== DATA_WAIT
) {
1324 /* Skip any extra start packets until we see data */
1325 if (pkt_type
== START_PKT_TYPE
) {
1327 } else if (pkt_type
== DATA_PKT_TYPE
) {
1328 rcv_state
= DATA_RCV
;
1329 } else if (pkt_type
== END_PKT_TYPE
) {
1330 fprintf(stderr
, "ERROR: Found UDP end packet without receiving "
1331 "any data packets.\n");
1332 rcv_state
= END_TEST
;
1334 } else { /* DATA_RCV */
1335 /* Collect data packets until we see a vaild end packet */
1336 if (pkt_type
== START_PKT_TYPE
) {
1337 /* We missed the end packets and now a new test is
1338 * starting. Report the results of this test then start
1342 fprintf(stderr
, "ERROR: Found UDP start packet while receiving data.\n"
1343 "ERROR: Expected more data packets or an end packet.\n");
1348 rcv_state
= DATA_WAIT
;
1349 } else if (pkt_type
== DATA_PKT_TYPE
) {
1350 /* loop in this state */
1351 } else if (pkt_type
== END_PKT_TYPE
) {
1352 /* we used to print results here but now we do when the loop ends */
1353 rcv_state
= END_TEST
;
1357 /* tally data packets the same way from whatever state we are in */
1358 if (pkt_type
== DATA_PKT_TYPE
) {
1360 fprintf(stderr
, "ttcp-r: %5d | %d Bytes Read\n", ++nbuffers
, cnt
);
1363 /* check seqence num */
1364 buf_seq
= (unsigned char)(buf
[0]);
1365 if (buf_seq
!= seq
) {
1366 fprintf(stderr
, "ERROR: Out of sequence. "
1367 "Buffer %u, seq %u, expected %u\n",
1368 data_pkt_cnt
, buf_seq
, seq
);
1374 #if !defined(__NTVIS__) /* else case specific to WINNT */
1375 if (write(1,&(buf
[1]),cnt
-1) != cnt
-1) err("write");
1376 #else /* __NTVIS__ */
1377 if ((int)fwrite(&(buf
[1]),1,cnt
-1,stdout
) != cnt
-1) err("fwrite");
1378 #endif /* __NTVIS__ */
1383 /* normal end of test */
1386 fprintf(stderr
, "ttcp-r: packets %u data, %u start, %u end\n",
1387 data_pkt_cnt
, start_pkt_cnt
, end_pkt_cnt
);
1388 if (expected_pkt_cnt
!= 0) {
1389 int lost_cnt
= expected_pkt_cnt
- data_pkt_cnt
;
1391 fprintf(stderr
, "ttcp-r: %g%% (%u/%u) packet loss\n",
1392 100.0 * (double)lost_cnt
/(double)expected_pkt_cnt
,
1393 lost_cnt
, expected_pkt_cnt
);
1397 /*--------------------------------------------------------------------------*/
1398 /* calc_cpu_time(): Time difference, in usecs, of the combined user and
1399 * sys times of the given start and end usage info */
1408 struct timeval tdiff
, tend
, tstart
;
1410 /* total user delta time + total system delta time */
1411 tvadd( &tend
, &r1
->ru_utime
, &r1
->ru_stime
); /* user + sys time @ end */
1412 tvadd( &tstart
, &r0
->ru_utime
, &r0
->ru_stime
); /* user + sys time @ start*/
1413 tvsub( &tdiff
, &tend
, &tstart
);
1416 time
= ((double)tdiff
.tv_sec
)*1e6
+ (double)tdiff
.tv_usec
;
1418 /* debug mseconds */
1419 ms
= tdiff
.tv_sec
*(time_t)1000 + tdiff
.tv_usec
/(time_t)1000;
1420 if (ms
!= (time_t)(time
/1000.0)) {
1421 fprintf(stderr
, "ERROR: time calc mismatch of msec (%d) to usec (%f)\n",
1422 (int)ms
, time
/1000.0);
1428 /*--------------------------------------------------------------------------*/
1429 /* calc_real_time(): Time difference in usecs of the given times */
1438 struct timeval tdiff
;
1440 tvsub(&tdiff
, t1
,t0
);
1443 time
= ((double)tdiff
.tv_sec
)*1e6
+ (double)tdiff
.tv_usec
;
1445 /* debug mseconds */
1446 ms
= tdiff
.tv_sec
*(time_t)1000 + tdiff
.tv_usec
/(time_t)1000;
1447 if (ms
!= (time_t)(time
/1000.0)) {
1448 fprintf(stderr
, "ERROR: time calc mismatch of msec (%d) to usec (%f)\n",
1449 (int)ms
, time
/1000.0);
1454 /*--------------------------------------------------------------------------*/
1456 result_summary(void)
1458 char* label
= trans
? "ttcp-t" : "ttcp-r";
1459 double cput
= calc_cpu_time(&ru0
, &ru1
);
1460 double realt
= calc_real_time(&time0
, &time1
);
1462 double bytes_per_sec
;
1464 /* lower end boundary conditions */
1465 t_min
= 10.0; /* 10 usec */
1466 #if defined(__NTVIS__)
1467 t_min
= 1000.0; /* 1 msec */
1469 if (cput
<= t_min
) { /* value in usec */
1471 fprintf(stderr
,"%s: cpu time too short set at %.0f usec, NOT accurate result.\n",
1474 if (realt
<= t_min
) { /* value in usec */
1476 fprintf(stderr
,"%s: real time too short, set at %.0f usec, NOT accurate result.\n",
1480 bytes_per_sec
= (nbytes
/realt
)*1e6
;
1482 fprintf(stderr
,"%s: %.0f bytes in %.06f real seconds = %s/sec +++\n",
1483 label
, nbytes
, realt
/1e6
, outfmt(fmt
, bytes_per_sec
));
1486 fprintf(stderr
,"%s: %.0f bytes in %.06f cpu seconds = %s/cpu sec\n",
1487 label
, nbytes
,cput
/1e6
, outfmt(fmt
, (nbytes
/cput
)*1e6
));
1489 fprintf(stderr
,"%s: %ld I/O calls, %.3f msec(real)/call, %.3f msec(cpu)/call\n",
1491 (numCalls
>0)?(realt
/(double)numCalls
)/1000.0:0.0,
1492 (numCalls
>0)?(cput
/(double)numCalls
)/1000.0:0.0);
1494 fprintf(stderr
,"%s: ", label
);
1495 prusage(&ru0
, &ru1
, &time0
, &time1
);
1496 fprintf(stderr
,"\n");
1499 printf("%s: buffer address %#x\n", label
, (unsigned int)buf
);
1502 struct timeval tdiff
;
1504 tvsub(&tdiff
, &ru1
.ru_utime
, &ru0
.ru_utime
);
1505 fprintf(fplog
," %ld.%06ld", (long)tdiff
.tv_sec
, (long)tdiff
.tv_usec
);
1507 tvsub(&tdiff
, &ru1
.ru_stime
, &ru0
.ru_stime
);
1508 fprintf(fplog
," %ld.%06ld", (long)tdiff
.tv_sec
, (long)tdiff
.tv_usec
);
1509 /* Percent of cput usage */
1510 fprintf(fplog
," %.1f", 100.0 * (cput
/realt
));
1511 /* validity of real time mesurment */
1512 fprintf(fplog
, (realt
== t_min
)?" 0":" 1");
1513 /* bytes, seconds, MBytes/sec, IO calls */
1514 fprintf(fplog
," %10.0f %4.06f %4.3f %6ld",
1515 nbytes
, realt
/1e6
, bytes_per_sec
/(1024.0*1024.0), numCalls
);
1518 /*--------------------------------------------------------------------------*/
1520 sockets_err(char* s
)
1522 #if defined(__NTVIS__)
1523 int err
= WSAGetLastError();
1524 char* prefix
= trans
?"ttcp-t":"ttcp-r";
1525 fprintf(stderr
,"%s: %s\n", prefix
, s
);
1526 fprintf(stderr
,"%s: errno=%d\n", prefix
, err
);
1530 #endif /* __NTVIS__ */
1533 /*--------------------------------------------------------------------------*/
1537 char* prefix
= trans
?"ttcp-t":"ttcp-r";
1538 fprintf(stderr
,"%s: ", prefix
);
1540 fprintf(stderr
,"%s: errno=%d\n", prefix
, errno
);
1543 /*--------------------------------------------------------------------------*/
1547 fprintf(stderr
,"ttcp%s: %s\n", trans
?"-t":"-r", s
);
1549 /*--------------------------------------------------------------------------*/
1551 pattern( char *cp
, int cnt
)
1557 while( cnt1
-- > 0 ) {
1558 while( !isprint((c
&0x7F)) ) c
++;
1562 /*--------------------------------------------------------------------------*/
1564 outfmt(char format
, double b
)
1566 static char obuf
[50];
1567 double giga
= 1024.0 * 1024.0 * 1024.0;
1568 double mega
= 1024.0 * 1024.0;
1569 double kilo
= 1024.0;
1571 if (format
== 'A') {
1584 sprintf(obuf
, "%.3f GB", b
/ giga
);
1587 sprintf(obuf
, "%.3f MB", b
/ mega
);
1590 sprintf(obuf
, "%.3f KB", b
/ kilo
);
1593 sprintf(obuf
, "%4f B", b
);
1596 sprintf(obuf
, "%.3f Gbit", b
* 8.0 / giga
);
1599 sprintf(obuf
, "%.3f Mbit", b
* 8.0 / mega
);
1602 sprintf(obuf
, "%.3f Kbit", b
* 8.0 / kilo
);
1605 sprintf(obuf
, "%4f b", b
* 8.0);
1608 sprintf(obuf
, "default..........");
1612 /*--------------------------------------------------------------------------*/
1617 #if defined(__osf__)
1618 /* getrusage defined in the system lib */
1620 #if defined(__lynx__)
1621 /* getrusage defined in the system lib */
1623 #if defined(__sun__)
1624 /* getrusage defined in the system lib */
1628 getrusage(ignored
, ru
)
1630 register struct rusage
*ru
;
1634 #if defined(__NTVIS__)
1636 FILETIME CreateTime
, ExitTime
, KernelTime
, UserTime
;
1638 #if defined(UNDER_CE)
1639 phd
= GetCurrentThread();
1640 if( GetThreadTimes(phd
, &CreateTime
, &ExitTime
, &KernelTime
, &UserTime
)
1643 phd
= GetCurrentProcess();
1644 if( GetProcessTimes(phd
, &CreateTime
, &ExitTime
, &KernelTime
, &UserTime
)
1647 {ru
->ru_stime
.tv_sec
= 0;
1648 ru
->ru_stime
.tv_usec
= 0;
1649 ru
->ru_utime
.tv_sec
= 0;
1650 ru
->ru_utime
.tv_usec
= 0;
1654 (void) FileTimeToSystemTime(&KernelTime
, &SysTime
);
1657 * "System sec=%d, msec=%d\n", SysTime.wSecond, SysTime.wMilliseconds);
1659 ru
->ru_stime
.tv_sec
= SysTime
.wSecond
;
1660 ru
->ru_stime
.tv_usec
= SysTime
.wMilliseconds
* 1000;
1661 (void) FileTimeToSystemTime(&UserTime
, &SysTime
);
1664 * " User sec=%d, msec=%d\n", SysTime.wSecond, SysTime.wMilliseconds);
1666 ru
->ru_utime
.tv_sec
= SysTime
.wSecond
;
1667 ru
->ru_utime
.tv_usec
= SysTime
.wMilliseconds
* 1000;
1670 #else /* __NTVIS__ */
1674 /* Assumption: HZ <= 2147 (LONG_MAX/1000000) */
1675 /* info : in lynxOS HZ is called TICKSPERSEC (<conf.h>) */
1677 ru
->ru_stime
.tv_sec
= buftime
.tms_stime
/ HZ
;
1678 ru
->ru_stime
.tv_usec
= ((buftime
.tms_stime
% HZ
) * 1000000) / HZ
;
1679 ru
->ru_utime
.tv_sec
= buftime
.tms_utime
/ HZ
;
1680 ru
->ru_utime
.tv_usec
= ((buftime
.tms_utime
% HZ
) * 1000000) / HZ
;
1681 #endif /* __NTVIS__ */
1684 } /* static getrusage */
1686 #endif /* __sun__ */
1687 #endif /* __lynx__ */
1688 #endif /* __osf__ */
1690 /*--------------------------------------------------------------------------*/
1692 #if defined(__hpux__) || defined(_AIX) || defined(__sun__)
1693 /* gettimeofday defined in the system lib */
1695 # if defined (__osf__) ||defined (__lynx__)
1696 /* gettimeofday defined in the system lib */
1700 gettimeofday(tp
, zp
)
1702 struct timezone
*zp
;
1704 #if defined(__NTVIS__)
1705 #if defined(UNDER_CE)
1706 SYSTEMTIME SystemTime
;
1708 GetLocalTime(&SystemTime
);
1709 tp
->tv_sec
= SystemTime
.wSecond
;
1710 tp
->tv_usec
= SystemTime
.wMilliseconds
* 1000;
1712 struct _timeb timeptr
;
1715 tp
->tv_sec
= timeptr
.time
;
1716 tp
->tv_usec
= timeptr
.millitm
* 1000;
1718 #else /* all cases */
1719 tp
->tv_sec
= time(0);
1721 #endif /* __NTVIS__ */
1723 } /* static gettimeofday */
1725 #endif /*__osf__ || __lynx__ */
1726 #endif /* __hpux__ || _AIX || __sun__ || __osf__*/
1728 /*--------------------------------------------------------------------------*/
1730 * P R E P _ T I M E R
1735 gettimeofday(&time0
, (struct timezone
*)0);
1736 getrusage(RUSAGE_SELF
, &ru0
);
1738 /*--------------------------------------------------------------------------*/
1740 * R E A D _ T I M E R
1746 getrusage(RUSAGE_SELF
, &ru1
);
1747 gettimeofday(&time1
, (struct timezone
*)0);
1749 /*--------------------------------------------------------------------------*/
1750 /* Print the process usage calculated from timers values extracted
1751 * before and after the transfer execution.
1755 struct rusage
*r0
, struct rusage
*r1
,
1756 struct timeval
*t0
, struct timeval
*t1
1759 struct timeval tdiff
;
1762 double cput
= calc_cpu_time(r0
, r1
);
1763 double realt
= calc_real_time(t0
, t1
);
1765 /* t == total user delta time + total system delta time */
1768 printf("timers : end startup\n");
1769 printf("user (sec) : %9ld %9ld\n",r1
->ru_utime
.tv_sec
,
1770 r0
->ru_utime
.tv_sec
);
1771 printf("user (usec): %9ld %9ld\n",r1
->ru_utime
.tv_usec
,
1772 r0
->ru_utime
.tv_usec
);
1773 printf("sys (sec) : %9ld %9ld\n",r1
->ru_stime
.tv_sec
,
1774 r0
->ru_stime
.tv_sec
);
1775 printf("sys (usec): %9ld %9ld\n",r1
->ru_stime
.tv_usec
,
1776 r0
->ru_stime
.tv_usec
);
1777 printf("time (sec) : %9ld %9ld\n",t1
->tv_sec
,t0
->tv_sec
);
1778 printf("time (usec): %9ld %9ld\n",t1
->tv_usec
,t0
->tv_usec
);
1780 /* for the AIX debug, most counters are outside a good range
1782 printf("ru_ixrss %20ld %20ld \n", r0->ru_ixrss ,r1->ru_ixrss );
1783 printf("ru_idrss %20ld %20ld \n", r0->ru_idrss ,r1->ru_idrss );
1784 printf("ru_isrss %20ld %20ld \n", r0->ru_isrss ,r1->ru_isrss );
1785 printf("ru_minflt %20ld %20ld \n", r0->ru_minflt ,r1->ru_minflt );
1786 printf("ru_majflt %20ld %20ld \n", r0->ru_majflt ,r1->ru_majflt );
1787 printf("ru_nswap %20ld %20ld \n", r0->ru_nswap ,r1->ru_nswap );
1788 printf("ru_inblock %20ld %20ld \n", r0->ru_inblock ,r1->ru_inblock );
1789 printf("ru_oublock %20ld %20ld \n", r0->ru_oublock ,r1->ru_oublock );
1790 printf("ru_msgsnd %20ld %20ld \n", r0->ru_msgsnd ,r1->ru_msgsnd );
1791 printf("ru_msgrcv %20ld %20ld \n", r0->ru_msgrcv ,r1->ru_msgrcv );
1792 printf("ru_nsignals %20ld %20ld \n", r0->ru_nsignals ,r1->ru_nsignals);
1793 printf("ru_nvcsw %20ld %20ld \n", r0->ru_nvcsw ,r1->ru_nvcsw );
1794 printf("ru_nivcsw %20ld %20ld \n", r0->ru_nivcsw ,r1->ru_nivcsw );
1797 /* cpu time in mseconds */
1798 t
= (int)(cput
/ 1000.0);
1800 /* ms == value of the internal clock at the end of the xfer */
1801 /* also called real time. */
1802 /* real time in mseconds */
1803 ms
= (int)(realt
/ 1000.0);
1805 /* The display is based on variables provided by the function getrusage
1806 Info located in : /usr/include/sys/resource.h
1811 /* with AIX cernsp most counters are wrong
1812 * cp = "%Uuser %Ssys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Ccsw\0";
1814 cp
= "%Uuser %Ssys %Ereal %P\0";
1817 #if defined(__osf__)
1818 cp
= "%Uuser %Ssys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Ccsw\0";
1820 #if defined(sgi) /* IRIX 3.3 will show 0 for %M,%F,%R,%C */
1821 cp
= "%Uuser %Ssys %Ereal %P %Mmaxrss %F+%Rpf %Ccsw\0";
1823 #if defined(__Lynx__)
1824 cp
= "%Uuser %Ssys %Ereal %P\0";
1826 cp
= "%Uuser %Ssys %Ereal %P\0"; /* all SYSV except those mentionned */
1827 #endif /*__lynx__ */
1832 #else /* BSD system */
1833 cp
= "%Uuser %Ssys %Ereal %P %Xi+%Dd %Mmaxrss %F+%Rpf %Ccsw\0";
1840 /* *outp++ = *cp; */
1844 tvsub(&tdiff
, &r1
->ru_utime
, &r0
->ru_utime
);
1845 fprintf(stderr
,"%ld.%06ld", (long)tdiff
.tv_sec
, (long)tdiff
.tv_usec
);
1849 tvsub(&tdiff
, &r1
->ru_stime
, &r0
->ru_stime
);
1850 fprintf(stderr
,"%ld.%06ld", (long)tdiff
.tv_sec
, (long)tdiff
.tv_usec
);
1858 fprintf(stderr
,"%.1f%%", (cput
*100.0 / (realt
? realt
: 1.0)) );
1861 #if !defined(SYSV) || defined(__osf__) || defined(_AIX)
1864 int i
= r1
->ru_nswap
- r0
->ru_nswap
;
1865 fprintf(stderr
,"%d", i
);
1870 fprintf(stderr
,"%ld", t
== 0 ? 0 : (r1
->ru_ixrss
-r0
->ru_ixrss
)/t
);
1874 fprintf(stderr
,"%ld", t
== 0 ? 0 :
1875 (r1
->ru_idrss
+r1
->ru_isrss
- (r0
->ru_idrss
+r0
->ru_isrss
))/t
);
1879 fprintf(stderr
,"%ld", t
== 0 ? 0 :
1880 ((r1
->ru_ixrss
+r1
->ru_isrss
+r1
->ru_idrss
) -
1881 (r0
->ru_ixrss
+r0
->ru_idrss
+r0
->ru_isrss
))/t
);
1885 fprintf(stderr
,"%ld", r1
->ru_maxrss
/2);
1889 fprintf(stderr
,"%ld", r1
->ru_majflt
-r0
->ru_majflt
);
1893 fprintf(stderr
,"%ld", r1
->ru_minflt
-r0
->ru_minflt
);
1897 fprintf(stderr
,"%ld", r1
->ru_inblock
-r0
->ru_inblock
);
1901 fprintf(stderr
,"%ld", r1
->ru_oublock
-r0
->ru_oublock
);
1905 fprintf(stderr
,"%ld+%ld",
1906 r1
->ru_nvcsw
-r0
->ru_nvcsw
, r1
->ru_nivcsw
-r0
->ru_nivcsw
);
1908 #endif /* !SYSV || __osf__ */
1915 /*--------------------------------------------------------------------------*/
1916 /* add 2 times structure and move usec bigger than 1000000 to sec */
1919 struct timeval
*tsum
, *t0
, *t1
;
1921 tsum
->tv_sec
= t0
->tv_sec
+ t1
->tv_sec
;
1922 tsum
->tv_usec
= t0
->tv_usec
+ t1
->tv_usec
;
1923 if (tsum
->tv_usec
> 1000000) tsum
->tv_sec
++, tsum
->tv_usec
-= 1000000;
1925 /*--------------------------------------------------------------------------*/
1926 /* substract 2 time structure (t1 > t0) */
1928 tvsub(tdiff
, t1
, t0
)
1929 struct timeval
*tdiff
, *t1
, *t0
;
1931 tdiff
->tv_sec
= t1
->tv_sec
- t0
->tv_sec
;
1932 tdiff
->tv_usec
= t1
->tv_usec
- t0
->tv_usec
;
1933 if (tdiff
->tv_usec
< 0) tdiff
->tv_sec
--, tdiff
->tv_usec
+= 1000000;
1936 /*--------------------------------------------------------------------------*/
1940 int i
= (int)l
/3600;
1944 fprintf(stderr
,"%d:", i
);
1946 fprintf(stderr
,"%.2d:%.2d", i
/60, i
%60);
1950 fprintf(stderr
,"%d:%.2d", i
/60, i
%60);
1953 /*--------------------------------------------------------------------------*/
1957 Nread(SOCKET s
, void* bufp
, int count
)
1959 #if defined(__lynx__) || defined(__svr4__) || defined(_AIX) || defined(__NTVIS__) || defined(__FreeBSD__)
1960 struct sockaddr from
;
1962 struct sockaddr_in from
;
1964 int len
= sizeof(from
);
1968 fd_set readfds
, exceptfds
;
1969 struct timeval tv_timeout
;
1972 tv_timeout
.tv_sec
= timeout
/1000;
1973 tv_timeout
.tv_usec
= (timeout
%1000)*1000;
1976 FD_ZERO(&exceptfds
);
1977 FD_SET(s
, &readfds
);
1978 FD_SET(s
, &exceptfds
);
1980 n
= select( s
+1, &readfds
, NULL
, &exceptfds
, &tv_timeout
);
1981 if (n
== SOCKET_ERROR
) {
1982 sockets_err("select read");
1983 } else if (n
== 0) {
1990 {cnt
= recvfrom( s
, bufp
, count
, 0, SOCKADDR_CAST
&from
, &len
);
1994 {if( b_flag
) cnt
= mread( s
, bufp
, count
); /* fill bufp */
1997 #if defined(__NTVIS__)
1998 cnt
= recv( s
, bufp
, count
, 0 );
2000 cnt
= read( s
, bufp
, count
);
2001 #endif /* __NTVIS__ */
2004 if (touchdata
&& cnt
> 0)
2005 {register int c
= cnt
, sum
= 0;
2006 register char *b
= bufp
;
2007 while (c
--) sum
+= *b
++;
2010 /* rchrch printf (" numcall %d read buffer %d bytes \n",numCalls,cnt); */
2013 /*--------------------------------------------------------------------------*/
2017 Nwrite( int s
, void* bufp
, int count
)
2023 cnt
= sendto( s
, bufp
, count
, 0, SOCKADDR_CAST
&sinhim
,
2028 #if defined(__NTVIS__)
2029 if( cnt
<0 && WSAENOBUFS
== WSAGetLastError())
2031 if( cnt
<0 && errno
== ENOBUFS
)
2032 #endif /* __NTVIS__ */
2034 { delay(18000); errno
= 0; goto again
; }
2035 } else /* if (udp) */
2038 #if defined(__NTVIS__)
2039 cnt
= send( s
, bufp
, count
, 0 );
2042 cnt
= write( s
, bufp
, count
);
2044 #endif /* __NTVIS__ */
2048 /*--------------------------------------------------------------------------*/
2056 tv
.tv_usec
= (time_t)us
;
2058 #if defined(__hpux__)
2059 select(1, 0, 0, 0, &tv
);
2061 select(1, (fd_set
*)0, (fd_set
*)0, (fd_set
*)0, &tv
);
2064 /*--------------------------------------------------------------------------*/
2067 * This function performs the function of a read(II) but will
2068 * call read(II) multiple times in order to get the requested
2069 * number of characters. This can be necessary because
2070 * network connections don't deliver data with the same
2071 * grouping as it is written with. Written by Robert S. Miles, BRL.
2074 mread(int s
, char* bufp
, unsigned n
)
2076 register unsigned count
= 0;
2081 #if defined(__NTVIS__)
2082 nread
= recv(s
, bufp
, n
-count
, 0);
2084 nread
= read(s
, bufp
, n
-count
);
2085 #endif /* __NTVIS__ */
2087 if(nread
< 0) {perror("ttcp_mread"); return(-1); }
2088 if(nread
== 0) return((int)count
);
2089 count
+= (unsigned)nread
;
2095 /*--------------------------------------------------------------------------*/
2098 {static long sysTicks
;
2099 #if defined(UNDER_CE)
2100 SYSTEMTIME SystemTime
;
2102 sprintf(logfile
,"%s_%s",logfile_head
,trans
?"t":"r");
2104 fprintf(stderr
,"open the log file >%s<\n",logfile
);
2105 if ((fplog
= fopen(logfile
,"r")) == NULL
)
2107 {if ((fplog
= fopen(logfile
,"a+")) == NULL
)
2108 {fprintf(stderr
,"Failure : creation of the file >%s< \n",logfile
);
2112 {fprintf(fplog
," creation date : ");
2114 #if defined(UNDER_CE)
2115 GetLocalTime(&SystemTime
);
2116 sprintf(fplog
,"%02d-%02d-%02d %02d:%02d\n", SystemTime
.wDay
, month
[SystemTime
.wMonth
- 1],
2117 SystemTime
.wYear
, SystemTime
.wHour
, SystemTime
.wMinute
);
2120 tms
= localtime(&sysTicks
);
2121 fprintf(fplog
,"%02d-%02d-%02d %02d:%02d\n",
2122 tms
->tm_mday
, tms
->tm_mon
, tms
->tm_year
,tms
->tm_hour
, tms
->tm_min
);
2125 /* An other version will produce : Mon Aug 4 16:32:16 1997
2126 * long lDxcomsTicks; char *pDateTime;
2127 * time(&lDxcomsTicks);
2128 * pDateTime = ctime(&lDxcomsTicks); *(pDateTime+24) = '\0';
2129 * fprintf(fplog," ttcp called : %s", pDateTime);
2131 fprintf(fplog
,"format\n");
2132 fprintf(fplog
,",buflen, nbuf(byte), bufalign(byte), bufoffset(byte)");
2133 fprintf(fplog
,", port, sockbufsize(byte), UserTime(sec), SysTime(sec)\n");
2134 fprintf(fplog
,", CPUusage(%%), Validity, nbytes(byte), realt(sec)");
2135 fprintf(fplog
,", rate(MB/sec), I/O call, hours*3600+min*60+sec\n\n");
2136 /* day-month-year, hour:minute\n\n"); */
2138 } /* file already exist */
2141 if ((fplog
= fopen(logfile
,"a+")) == NULL
)
2142 {fprintf(stderr
,"Failure : access of the file >%s< \n",logfile
);
2147 /*--------------------------------------------------------------------------*/
2151 #if defined(UNDER_CE)
2152 SYSTEMTIME SystemTime
;
2154 GetLocalTime(&SystemTime
);
2155 fprintf(fplog
," %d\n", SystemTime
.wHour
* 3600 + SystemTime
.wMinute
* 60 + SystemTime
.wSecond
);
2157 static long sysTicks
;
2159 tms
= localtime(&sysTicks
);
2160 fprintf(fplog
," %d\n",((tms
->tm_hour
)*3600 + (tms
->tm_min
)*60 + tms
->tm_sec
));
2165 /*--------------------------------------------------------------------------*/
2166 /* routine emulating UNIX function under NT */
2167 #if defined(__NTVIS__)
2169 /*---------------------------------------------------------------------------*/
2174 return; // without printing
2176 fprintf(stderr
, "%s: %s: %c\n",
2177 (NULL
!= progname
) ? progname
: "getopt", pch
, optopt
);
2179 /*---------------------------------------------------------------------------*/
2181 getopt(int argc
, char **argv
, char *ostr
)
2183 static char *place
= EMSG
; /* option letter processing */
2184 register char *oli
; /* option letter list index */
2187 // update scanning pointer
2188 if (optind
>= argc
|| *(place
= argv
[optind
]) != '-' || !*++place
) {
2192 // place now points to the first char past the initial '-'
2193 if (place
[0] == '-') {
2195 // Was the word just a '--'?
2196 if (place
[1] == '\0')
2197 ++optind
; // yes, so consume the word
2198 // otherwise, the '--' was the start of a longer word,
2199 // so do not consume it.
2205 /* option letter okay? */
2206 if ((optopt
= (int)*place
++) == (int)':'
2207 || !(oli
= strchr(ostr
, optopt
))) {
2211 error("illegal option");
2214 if (*++oli
!= ':') {
2215 /* don't need argument */
2220 /* need an argument */
2222 optarg
= place
; /* no white space */
2223 } else if (argc
<= ++optind
) {
2226 error("option requires an argument");
2229 optarg
= argv
[optind
]; /* white space */
2234 return optopt
; // return option letter
2238 usleep(unsigned int microseconds
)
2240 Sleep(microseconds
/1000);
2242 #endif /* __NTVIS__ */
2243 /*--------------------------------------------------------------------------*/
2244 /*--------------------------------------------------------------------------*/
2249 " Details about the reply: \n"
2251 " ttcp-t: buflen=8192, nbuf=100, align=16384/0, port=5010\n"
2252 " ttcp-t: File-Descriptor 0x4 Opened\n"
2253 " # tcp sender -> <host> #\n"
2254 " ttcp-t: 819200 bytes in 1.152557 real seconds = 694.109 KB/sec +++\n"
2255 " ttcp-t: 100 I/O calls, 11.526 msec(real)/call, 0.213 msec(cpu)/call\n"
2256 " ttcp-t: 0.001914user 0.019388sys 0:01real 1% 9i+58d 190maxrss 1+2pf 177+180csw\n"
2257 " ttcp-t: buffer address 0x28000\n"
2258 " ttcp-t: File-Descriptor fd 0x4 Closed\n"
2260 "cpu seconds == (sec) elapse ru_utime + elapse ru_stime.\n"
2261 " ru_utime == The total amount of time running in user mode.\n"
2262 " ru_stime == The total amount of time spent in the system.\n"
2263 " executing on behalf of the process.\n"
2264 "real seconds == elapse time calculated by the system timer (date).\n"
2265 "I/O calls == I/O call to the driver.\n"
2266 "msec/call == average elapse time (Real seconds) between each I/O.\n"
2267 "calls/sec == invert of msec/call.\n"
2268 "user == (sec.msec) elaspe ru_utime.\n"
2269 "sys == (sec.msec) elapse ru_stime.\n"
2270 "real == (min:sec) CPU seconds.\n"
2271 "%% == Real seconds / CPU seconds.\n"
2272 "(ru_ixrss)i+(ru_idrss)d\n"
2273 " ru_ixrss == An integral value indicating the amount of memory \n"
2274 " used by the text segment that was also shared among\n"
2275 " other processes. This value is expressed in units of\n"
2276 " kilobytes * seconds-of-execution and is calculated \n"
2277 " by adding the number of shared memory pages in use \n"
2278 " each time the internal system clock ticks, and then\n"
2279 " averaging over one-second intervals.\n"
2280 " ru_idrss == An integral value of the amount of unshared memory \n"
2281 " in the data segment of a process (expressed in \n"
2282 " units of kilobytes * seconds-of-execution).\n";
2285 " (ru_maxrss/2)maxrss.\n"
2286 " ru_maxrss == The maximum size, in kilobytes, of the used\n"
2287 " resident set size. \n"
2288 " (ru_majflt)+(ru_minflt)pf : Page fault\n"
2289 " ru_majflt == The number of page faults serviced that required\n"
2291 " ru_minflt == The number of page faults serviced without any\n"
2292 " I/O activity. In this case, I/O activity is \n"
2293 " avoided by reclaiming a page frame from the list \n"
2294 " of pages awaiting reallocation. \n"
2295 "(ru_nvcsw)+(ru_nivcsw)csw : context switch\n"
2296 " ru_nvcsw == The number of times a context switch resulted \n"
2297 " because a process voluntarily gave up the \n"
2298 " processor before its time slice was completed. \n"
2299 " This usually occurs while the process waits \n"
2300 " for availability of a resource.\n"
2301 " ru_nivcsw == The number of times a context switch resulted \n"
2302 " because a higher priority process ran or because\n"
2303 " the current process exceeded its time slice.\n\n";
2306 "log file format :\n"
2307 " buflen, nbuf(byte), bufalign(byte), bufoffset(byte)\n"
2308 " port, sockbufsize(byte), UserTime(sec), SysTime(sec), CPUusage(%)\n"
2309 " nbytes(byte), realt(sec), rate(MB/sec), I/O call,\n"
2310 " hours*3600+min*60+sec\n\n";
2312 fprintf(stderr
,More_help
);
2313 fprintf(stderr
,More_help1
);
2314 fprintf(stderr
,More_help2
);
2316 /*---------------------------------------------------------------------------*/
2321 " Usage: ttcp -t [-options] host [ < in ] ttcp -r [-options > out]\n"
2322 "Example: ttcp -t -s -v -n100 host ttcp -r -s -v -n100\n"
2324 " -V prints version number and date of last modification\n"
2325 " -L create and append all results to a file named ttcp_log\n"
2327 " -l ## length of bufs read from or written to network (default 8192,\n"
2329 " -u use UDP instead of TCP\n"
2330 " -p ## port number to send to or listen at (default 5001)\n"
2331 #if defined(__linux__)
2332 " -P ## link-layer priority (default 0)\n"
2334 " -s (ttcp -t) : source a pattern to network\n"
2335 " (ttcp -r) : sink (discard) all data from network\n"
2336 " -A ## align the start of buffers to this modulus (default 16384)\n"
2337 " -O ## start buffers at this offset from the modulus (default 0)\n"
2338 " -v verbose: print more statistics\n"
2339 " -d set SO_DEBUG socket option\n"
2340 " -b ## set socket buffer size (if supported)\n"
2341 " -f X format for rate: b,B = bits, bytes k,K = kilo{bits,bytes};\n"
2342 " m,M = mega{bits,bytes}; g,G = giga{bits,bytes}\n"
2343 " -w ## set timeout value (in milliseconds) to exit if no receive data or tcp connect\n"
2344 "Options specific to (ttcp -t) :\n"
2345 " -n ## number of source bufs written to network (default 2048)\n"
2346 " -x use random data in tcp/udp frames (-I provides seed)\n"
2347 " -D don't buffer TCP writes (sets TCP_NODELAY socket option)\n"
2348 " -H print hash marks to indicate progress, one per buffer\n"
2349 " -I init/seed value for RNG when sending random size bufs (default 1)\n"
2350 " -N ## number of source bufs per burst, i.e between sleeps (default 1)\n"
2351 " -R ## send random size buffers with minimum size specified, max size\n"
2352 " is value of -l option\n"
2353 " -S ## millisecs between bursts (only used for udp, 10ms resolution)\n"
2354 "Options specific to (ttcp -r) :\n"
2355 " -B for -s, only output full blocks as specified by -l (for TAR)\n"
2356 " -T \"touch\": access each byte as it's read\n"
2357 " -i report information on out of order sequence numbers\n"
2359 "Options for debug:\n"
2360 " --nostart do not send UDP start packets\n"
2361 " --noend do not send UDP end packets\n"
2362 " --nodata do not send UDP data packets\n"
2363 " --debug print extra debug outputs\n"
2367 fprintf(stderr
,Usage
);
2370 /* Define automatic Emacs variables for consistent code formatting */
2371 /* Local Variables: */
2372 /* c-basic-offset:2 */
2373 /* indent-tabs-mode:nil */
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