summaryrefslogtreecommitdiff
path: root/openwrt/package/ttcp/ttcp.c
blob: 7233ace990732842b4e12ca3f4c24a7109e7c10a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
/*
 *        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:                 */