aboutsummaryrefslogtreecommitdiff
path: root/lib/url.c
blob: 3194cbe20a865623b0d1b4f77a9e116f092c2f9d (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
/*****************************************************************************
 *                                  _   _ ____  _     
 *  Project                     ___| | | |  _ \| |    
 *                             / __| | | | |_) | |    
 *                            | (__| |_| |  _ <| |___ 
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 2000, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * In order to be useful for every potential user, curl and libcurl are
 * dual-licensed under the MPL and the MIT/X-derivate licenses.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the MPL or the MIT/X-derivate
 * licenses. You may pick one of these licenses.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 * $Id$
 *****************************************************************************/

/* -- WIN32 approved -- */

#include "setup.h"

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>

#include <errno.h>

#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
#include <winsock.h>
#include <time.h>
#include <io.h>
#else
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#include <netinet/in.h>
#include <sys/time.h>
#include <sys/resource.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <netdb.h>
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#include <sys/ioctl.h>
#include <signal.h>

#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif

#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif

#ifndef HAVE_SELECT
#error "We can't compile without select() support!"
#endif
#ifndef HAVE_SOCKET
#error "We can't compile without socket() support!"
#endif

#endif

#include "urldata.h"
#include "netrc.h"

#include "formdata.h"
#include "base64.h"
#include "ssluse.h"
#include "hostip.h"
#include "if2ip.h"
#include "transfer.h"
#include "sendf.h"
#include "getpass.h"
#include "progress.h"
#include "cookie.h"
#include "strequal.h"
#include "escape.h"

/* And now for the protocols */
#include "ftp.h"
#include "dict.h"
#include "telnet.h"
#include "http.h"
#include "file.h"
#include "ldap.h"

#include <curl/types.h>

#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>

#ifdef KRB4
#include "security.h"
#endif
/* The last #include file should be: */
#ifdef MALLOCDEBUG
#include "memdebug.h"
#endif

/* Local static prototypes */
static int ConnectionKillOne(struct UrlData *data);
static bool ConnectionExists(struct UrlData *data,
                             struct connectdata *needle,
                             struct connectdata **usethis);
static unsigned int ConnectionStore(struct UrlData *data,
                                    struct connectdata *conn);


CURLcode Curl_close(CURL *curl)
{
  struct UrlData *data=(struct UrlData *)curl;
  
  /* Loop through all open connections and kill them one by one */
  while(-1 != ConnectionKillOne(data));

  if(data->bits.proxystringalloc) {
    data->bits.proxystringalloc=FALSE;;
    free(data->proxy);
    data->proxy=NULL;

    /* Since we allocated the string the previous round, it means that we
       "discovered" the proxy in the environment variables and thus we must
       switch off that knowledge again... */
    data->bits.httpproxy=FALSE;
  }


  if(data->bits.rangestringalloc) {
    free(data->range);
    data->range=NULL;
    data->bits.rangestringalloc=0; /* free now */
  }

  /* check for allocated [URL] memory to free: */
  if(data->freethis)
    free(data->freethis);

  if(data->headerbuff)
    free(data->headerbuff);

  if(data->free_referer)
    free(data->referer);

  if(data->bits.urlstringalloc)
    /* the URL is allocated, free it! */
    free(data->url);

  Curl_cookie_cleanup(data->cookies);

  /* free the connection cache */
  free(data->connects);

  free(data);
  return CURLE_OK;
}

static
int my_getpass(void *clientp, char *prompt, char* buffer, int buflen )
{
  char *retbuf;
  retbuf = getpass_r(prompt, buffer, buflen);
  if(NULL == retbuf)
    return 1;
  else
    return 0; /* success */
}


CURLcode Curl_open(CURL **curl, char *url)
{
  /* We don't yet support specifying the URL at this point */
  struct UrlData *data;

  /* Very simple start-up: alloc the struct, init it with zeroes and return */
  data = (struct UrlData *)malloc(sizeof(struct UrlData));
  if(data) {
    memset(data, 0, sizeof(struct UrlData));

    /* We do some initial setup here, all those fields that can't be just 0 */

    data-> headerbuff=(char*)malloc(HEADERSIZE);
    if(!data->headerbuff) {
      free(data); /* free the memory again */
      return CURLE_OUT_OF_MEMORY;
    }

    data->headersize=HEADERSIZE;

    data->out = stdout; /* default output to stdout */
    data->in  = stdin;  /* default input from stdin */
    data->err  = stderr;  /* default stderr to stderr */

    /* use fwrite as default function to store output */
    data->fwrite = (size_t (*)(char *, size_t, size_t, FILE *))fwrite;

    /* use fread as default function to read input */
    data->fread = (size_t (*)(char *, size_t, size_t, FILE *))fread;

    /* set the default passwd function */
    data->fpasswd = my_getpass;

    data->infilesize = -1; /* we don't know any size */

    data->current_speed = -1; /* init to negative == impossible */

    data->httpreq = HTTPREQ_GET; /* Default HTTP request */

    /* create an array with connection data struct pointers */
    data->numconnects = 5; /* hard-coded right now */
    data->connects = (struct connectdata **)
      malloc(sizeof(struct connectdata *) * data->numconnects);

    if(!data->connects) {
      free(data);
      return CURLE_OUT_OF_MEMORY;
    }

    memset(data->connects, 0, sizeof(struct connectdata *)*data->numconnects);

    *curl = data;
    return CURLE_OK;
  }

  /* this is a very serious error */
  return CURLE_OUT_OF_MEMORY;
}

CURLcode Curl_setopt(CURL *curl, CURLoption option, ...)
{
  struct UrlData *data = curl;
  va_list param;
  char *cookiefile;

  va_start(param, option);

  switch(option) {
  case CURLOPT_RANDOM_FILE:
    /*
     * This is the path name to a file that contains random data to seed
     * the random SSL stuff with. The file is only used for reading.
     */
    data->ssl.random_file = va_arg(param, char *);
    break;
  case CURLOPT_EGDSOCKET:
    /*
     * The Entropy Gathering Daemon socket pathname
     */
    data->ssl.egdsocket = va_arg(param, char *);
    break;
  case CURLOPT_MAXCONNECTS:
    /*
     * Set the absolute number of maximum simultaneous alive connection that
     * libcurl is allowed to have.
     */
    {
      long newconnects= va_arg(param, long);
      struct connectdata **newptr;

      if(newconnects < data->numconnects) {
        /* Since this number is *decreased* from the existing number, we must
           close the possibly open connections that live on the indexes that
           are being removed! */
        int i;
        for(i=newconnects; i< data->numconnects; i++)
          Curl_disconnect(data->connects[i]);
      }
      if(newconnects) {
        newptr= (struct connectdata **)
          realloc(data->connects,
                  sizeof(struct connectdata *) * newconnects);
        if(!newptr)
          /* we closed a few connections in vain, but so what? */
          return CURLE_OUT_OF_MEMORY;
        data->connects = newptr;
        data->numconnects = newconnects;
      }
      else {
        /* zero makes NO cache at all */
        if(data->connects)
          free(data->connects);
        data->connects=NULL;
        data->numconnects=0;
      }
    }
    break;
  case CURLOPT_FORBID_REUSE:
    /*
     * When this transfer is done, it must not be left to be reused by a
     * subsequent transfer but shall be closed immediately.
     */
    data->bits.reuse_forbid = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_FRESH_CONNECT:
    /*
     * This transfer shall not use a previously cached connection but
     * should be made with a fresh new connect!
     */
    data->bits.reuse_fresh = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_VERBOSE:
    /*
     * Verbose means infof() calls that give a lot of information about
     * the connection and transfer procedures as well as internal choices.
     */
    data->bits.verbose = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_HEADER:
    /*
     * Set to include the header in the general data output stream.
     */
    data->bits.http_include_header = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_NOPROGRESS:
    /*
     * Shut off the internal supported progress meter
     */
    data->bits.hide_progress = va_arg(param, long)?TRUE:FALSE;
    if(data->bits.hide_progress)
      data->progress.flags |= PGRS_HIDE;
    break;
  case CURLOPT_NOBODY:
    /*
     * Do not include the body part in the output data stream.
     */
    data->bits.no_body = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_FAILONERROR:
    /*
     * Don't output the >=300 error code HTML-page, but instead only
     * return error.
     */
    data->bits.http_fail_on_error = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_UPLOAD:
    /*
     * We want to sent data to the remote host
     */
    data->bits.upload = va_arg(param, long)?TRUE:FALSE;
    if(data->bits.upload)
      /* If this is HTTP, PUT is what's needed to "upload" */
      data->httpreq = HTTPREQ_PUT;
    break;
  case CURLOPT_FILETIME:
    /*
     * Try to get the file time of the remote document. The time will
     * later (possibly) become available using curl_easy_getinfo().
     */
    data->bits.get_filetime = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_FTPLISTONLY:
    /*
     * An FTP option that changes the command to one that asks for a list
     * only, no file info details.
     */
    data->bits.ftp_list_only = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_FTPAPPEND:
    /*
     * We want to upload and append to an existing (FTP) file.
     */
    data->bits.ftp_append = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_NETRC:
    /*
     * Parse the $HOME/.netrc file
     */
    data->bits.use_netrc = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_FOLLOWLOCATION:
    /*
     * Follow Location: header hints on a HTTP-server.
     */
    data->bits.http_follow_location = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_FTPASCII:
    /*
     * Transfer FTP using ASCII instead of BINARY.
     */
    data->bits.ftp_ascii = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_PUT:
    /*
     * Use the HTTP PUT request to transfer data.
     */
    data->bits.http_put = va_arg(param, long)?TRUE:FALSE;
    if(data->bits.http_put)
      data->httpreq = HTTPREQ_PUT;
    break;
  case CURLOPT_MUTE:
    /*
     * Stay absolutely quiet.
     */
    data->bits.mute = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_TIMECONDITION:
    /*
     * Set HTTP time condition. This must be one of the defines in the
     * curl/curl.h header file.
     */
    data->timecondition = va_arg(param, long);
    break;
  case CURLOPT_TIMEVALUE:
    /*
     * This is the value to compare with the remote document with the
     * method set with CURLOPT_TIMECONDITION
     */
    data->timevalue = va_arg(param, long);
    break;
  case CURLOPT_SSLVERSION:
    /*
     * Set explicit SSL version to try to connect with, as some SSL
     * implementations are lame.
     */
    data->ssl.version = va_arg(param, long);
    break;

  case CURLOPT_COOKIEFILE:
    /*
     * Set cookie file to read and parse.
     */
    cookiefile = (char *)va_arg(param, void *);
    if(cookiefile) {
      data->cookies = Curl_cookie_init(cookiefile);
    }
    break;
  case CURLOPT_WRITEHEADER:
    /*
     * Callback function for header data
     */
    data->writeheader = (FILE *)va_arg(param, FILE *);
    break;
  case CURLOPT_COOKIE:
    /*
     * Cookie string to send to the remote server in the request.
     */
    data->cookie = va_arg(param, char *);
    break;
  case CURLOPT_ERRORBUFFER:
    /*
     * Error buffer provided by the caller to get the human readable
     * error string in.
     */
    data->errorbuffer = va_arg(param, char *);
    break;
  case CURLOPT_FILE:
    /*
     * FILE pointer to write to or include in the data write callback
     */
    data->out = va_arg(param, FILE *);
    break;
  case CURLOPT_FTPPORT:
    /*
     * Use FTP PORT, this also specifies which IP address to use
     */
    data->ftpport = va_arg(param, char *);
    data->bits.ftp_use_port = data->ftpport?1:0;
    break;
  case CURLOPT_HTTPHEADER:
    /*
     * Set a list with HTTP headers to use (or replace internals with)
     */
    data->headers = va_arg(param, struct curl_slist *);
    break;
  case CURLOPT_CUSTOMREQUEST:
    /*
     * Set a custom string to use as request
     */
    data->customrequest = va_arg(param, char *);
    if(data->customrequest)
      data->httpreq = HTTPREQ_CUSTOM;
    break;
  case CURLOPT_HTTPPOST:
    /*
     * Set to make us do HTTP POST
     */
    data->httppost = va_arg(param, struct HttpPost *);
    data->bits.http_formpost = data->httppost?1:0;
    if(data->bits.http_formpost)
      data->httpreq = HTTPREQ_POST_FORM;
    break;
  case CURLOPT_INFILE:
    /*
     * FILE pointer to read the file to be uploaded from. Or possibly
     * used as argument to the read callback.
     */
    data->in = va_arg(param, FILE *);
    break;
  case CURLOPT_INFILESIZE:
    /*
     * If known, this should inform curl about the file size of the
     * to-be-uploaded file.
     */
    data->infilesize = va_arg(param, long);
    break;
  case CURLOPT_LOW_SPEED_LIMIT:
    /*
     * The low speed limit that if transfers are below this for
     * CURLOPT_LOW_SPEED_TIME, the transfer is aborted.
     */
    data->low_speed_limit=va_arg(param, long);
    break;
  case CURLOPT_LOW_SPEED_TIME:
    /*
     * The low speed time that if transfers are below the set
     * CURLOPT_LOW_SPEED_LIMIT during this time, the transfer is aborted.
     */
    data->low_speed_time=va_arg(param, long);
    break;
  case CURLOPT_URL:
    /*
     * The URL to fetch.
     */
    data->url = va_arg(param, char *);
    break;
  case CURLOPT_PORT:
    /*
     * The port number to use when getting the URL
     */
    data->use_port = va_arg(param, long);
    break;
  case CURLOPT_POST:
    /* Does this option serve a purpose anymore? */
    data->bits.http_post = va_arg(param, long)?TRUE:FALSE;
    if(data->bits.http_post)
      data->httpreq = HTTPREQ_POST;
    break;
  case CURLOPT_POSTFIELDS:
    /*
     * A string with POST data. Makes curl HTTP POST.
     */
    data->postfields = va_arg(param, char *);
    data->bits.http_post = data->postfields?TRUE:FALSE;
    if(data->bits.http_post)
      data->httpreq = HTTPREQ_POST;
    break;
  case CURLOPT_POSTFIELDSIZE:
    /*
     * The size of the POSTFIELD data, if curl should now do a strlen
     * to find out. Enables binary posts.
     */
    data->postfieldsize = va_arg(param, long);
    break;
  case CURLOPT_REFERER:
    /*
     * String to set in the HTTP Referer: field.
     */
    data->referer = va_arg(param, char *);
    data->bits.http_set_referer = (data->referer && *data->referer)?1:0;
    break;
  case CURLOPT_AUTOREFERER:
    /*
     * Switch on automatic referer that gets set if curl follows locations.
     */
    data->bits.http_auto_referer = va_arg(param, long)?1:0;
    break;
  case CURLOPT_PROXY:
    /*
     * Set proxy server:port to use as HTTP proxy
     */
    data->proxy = va_arg(param, char *);
    data->bits.httpproxy = data->proxy?1:0;
    break;
  case CURLOPT_HTTPPROXYTUNNEL:
    /*
     * Tunnel operations through the proxy instead of normal proxy use
     */
    data->bits.tunnel_thru_httpproxy = va_arg(param, long)?TRUE:FALSE;
    break;
  case CURLOPT_PROXYPORT:
    /*
     * Explicitly set HTTP proxy port number.
     */
    data->proxyport = va_arg(param, long);
    break;
  case CURLOPT_TIMEOUT:
    /*
     * The maximum time you allow curl to use for a single transfer
     * operation.
     */
    data->timeout = va_arg(param, long);
    break;
  case CURLOPT_MAXREDIRS:
    /*
     * The maximum amount of hops you allow curl to follow Location:
     * headers. This should mostly be used to detect never-ending loops.
     */
    data->maxredirs = va_arg(param, long);
    break;
  case CURLOPT_USERAGENT:
    /*
     * String to use in the HTTP User-Agent field
     */
    data->useragent = va_arg(param, char *);
    break;
  case CURLOPT_USERPWD:
    /*
     * user:password to use in the operation
     */
    data->userpwd = va_arg(param, char *);
    data->bits.user_passwd = data->userpwd?1:0;
    break;
  case CURLOPT_POSTQUOTE:
    /*
     * List of RAW FTP commands to use after a transfer 
     */
    data->postquote = va_arg(param, struct curl_slist *);
    break;
  case CURLOPT_QUOTE:
    /*
     * List of RAW FTP commands to use before a transfer 
     */
    data->quote = va_arg(param, struct curl_slist *);
    break;
  case CURLOPT_PROGRESSFUNCTION:
    /*
     * Progress callback function
     */
    data->fprogress = va_arg(param, curl_progress_callback);
    data->progress.callback = TRUE; /* no longer internal */
    break;
  case CURLOPT_PROGRESSDATA:
    /*
     * Custom client data to pass to the progress callback
     */
    data->progress_client = va_arg(param, void *);
    break;
  case CURLOPT_PASSWDFUNCTION:
    /*
     * Password prompt callback
     */
    data->fpasswd = va_arg(param, curl_passwd_callback);
    break;
  case CURLOPT_PASSWDDATA:
    /*
     * Custom client data to pass to the password callback
     */
    data->passwd_client = va_arg(param, void *);
    break;
  case CURLOPT_PROXYUSERPWD:
    /*
     * user:password needed to use the proxy
     */
    data->proxyuserpwd = va_arg(param, char *);
    data->bits.proxy_user_passwd = data->proxyuserpwd?1:0;
    break;
  case CURLOPT_RANGE:
    /*
     * What range of the file you want to transfer
     */
    data->range = va_arg(param, char *);
    data->bits.set_range = data->range?1:0;
    break;
  case CURLOPT_RESUME_FROM:
    /*
     * Resume transfer at the give file position
     */
    data->resume_from = va_arg(param, long);
    break;
  case CURLOPT_STDERR:
    /*
     * Set to a FILE * that should receive all error writes. This
     * defaults to stderr for normal operations.
     */
    data->err = va_arg(param, FILE *);
    break;
  case CURLOPT_WRITEFUNCTION:
    /*
     * Set data write callback
     */
    data->fwrite = va_arg(param, curl_write_callback);
    break;
  case CURLOPT_READFUNCTION:
    /*
     * Read data callback
     */
    data->fread = va_arg(param, curl_read_callback);
    break;
  case CURLOPT_SSLCERT:
    /*
     * String that holds file name of the SSL certificate to use
     */
    data->cert = va_arg(param, char *);
    break;
  case CURLOPT_SSLCERTPASSWD:
    /*
     * String that holds the SSL certificate password.
     */
    data->cert_passwd = va_arg(param, char *);
    break;
  case CURLOPT_CRLF:
    /*
     * Kludgy option to enable CRLF convertions. Subject for
     * removal.
     */
    data->crlf = va_arg(param, long);
    break;
  case CURLOPT_INTERFACE:
    /*
     * Set what interface to bind to when performing an operation and thus
     * what from-IP your connection will use.
     */
    data->device = va_arg(param, char *);
    break;
  case CURLOPT_KRB4LEVEL:
    /*
     * A string that defines the krb4 security level.
     */
    data->krb4_level = va_arg(param, char *);
    data->bits.krb4=data->krb4_level?TRUE:FALSE;
    break;
  case CURLOPT_SSL_VERIFYPEER:
    /*
     * Enable peer SSL verifying.
     */
    data->ssl.verifypeer = va_arg(param, long);
    break;
  case CURLOPT_CAINFO:
    /*
     * Set CA info for SSL connection. Specify file name of the CA certificate
     */
    data->ssl.CAfile = va_arg(param, char *);
    data->ssl.CApath = NULL; /*This does not work on windows.*/
    break;
  case CURLOPT_TELNETOPTIONS:
    /*
     * Set a linked list of telnet options
     */
    data->telnet_options = va_arg(param, struct curl_slist *);
    break;
  default:
    /* unknown tag and its companion, just ignore: */
    return CURLE_READ_ERROR; /* correct this */
  }
  return CURLE_OK;
}

#if !defined(WIN32)||defined(__CYGWIN32__)
#ifndef RETSIGTYPE
#define RETSIGTYPE void
#endif
static
RETSIGTYPE alarmfunc(int signal)
{
  /* this is for "-ansi -Wall -pedantic" to stop complaining!   (rabe) */
  (void)signal;
  return;
}
#endif

CURLcode Curl_disconnect(struct connectdata *conn)
{
  if(!conn)
    return CURLE_OK; /* this is closed and fine already */

  infof(conn->data, "Closing live connection (#%d)\n", conn->connectindex);

  if(-1 != conn->connectindex)
    /* unlink ourselves! */
    conn->data->connects[conn->connectindex] = NULL;

  if(conn->curl_disconnect)
    /* This is set if protocol-specific cleanups should be made */
    conn->curl_disconnect(conn);

  if(conn->proto.generic)
    free(conn->proto.generic);

#ifdef ENABLE_IPV6
  if(conn->hp) /* host name info */
    freeaddrinfo(conn->hp);
#else
  if(conn->hostent_buf) /* host name info */
    free(conn->hostent_buf);
#endif

  if(conn->path) /* the URL path part */
    free(conn->path);

#ifdef USE_SSLEAY
  if (conn->ssl.use) {
    if(conn->ssl.handle) {
      (void)SSL_shutdown(conn->ssl.handle);
      SSL_set_connect_state(conn->ssl.handle);

      SSL_free (conn->ssl.handle);
      conn->ssl.handle = NULL;
    }
    if(conn->ssl.ctx) {
      SSL_CTX_free (conn->ssl.ctx);
      conn->ssl.ctx = NULL;
    }
    conn->ssl.use = FALSE; /* get back to ordinary socket usage */
  }
#endif /* USE_SSLEAY */

  /* close possibly still open sockets */
  if(-1 != conn->secondarysocket)
    sclose(conn->secondarysocket);
  if(-1 != conn->firstsocket)
    sclose(conn->firstsocket);

  if(conn->allocptr.proxyuserpwd)
    free(conn->allocptr.proxyuserpwd);
  if(conn->allocptr.uagent)
    free(conn->allocptr.uagent);
  if(conn->allocptr.userpwd)
    free(conn->allocptr.userpwd);
  if(conn->allocptr.rangeline)
    free(conn->allocptr.rangeline);
  if(conn->allocptr.ref)
    free(conn->allocptr.ref);
  if(conn->allocptr.cookie)
    free(conn->allocptr.cookie);
  if(conn->allocptr.host)
    free(conn->allocptr.host);

  if(conn->proxyhost)
    free(conn->proxyhost);

  free(conn); /* free all the connection oriented data */

  return CURLE_OK;
}

/*
 * This function should return TRUE if the socket is to be assumed to
 * be dead. Most commonly this happens when the server has closed the
 * connection due to inactivity.
 */
static bool SocketIsDead(int sock) 
{ 
  int sval; 
  bool ret_val = TRUE; 
  fd_set check_set; 
  struct timeval to; 

  FD_ZERO(&check_set); 
  FD_SET(sock,&check_set); 

  to.tv_sec = 0; 
  to.tv_usec = 1; 

  sval = select(sock + 1, &check_set, 0, 0, &to);
  if(sval == 0) 
    /* timeout */
    ret_val = FALSE; 
  
  return ret_val;
}

/*
 * Given one filled in connection struct, this function should detect if there
 * already is one that have all the significant details exactly the same and
 * thus should be used instead.
 */
static bool
ConnectionExists(struct UrlData *data,
                 struct connectdata *needle,
                 struct connectdata **usethis)
{
  size_t i;
  struct connectdata *check;

  for(i=0; i< data->numconnects; i++) {
    /*
     * Note that if we use a HTTP proxy, we check connections to that
     * proxy and not to the actual remote server.
     */
    check = data->connects[i];
    if(!check)
      /* NULL pointer means not filled-in entry */
      continue;
    if(!needle->bits.httpproxy) {
      /* The requested connection does not use a HTTP proxy */

      if(strequal(needle->protostr, check->protostr) &&
         strequal(needle->name, check->name) &&
         (needle->port == check->port) ) {
        bool dead;
        if(strequal(needle->protostr, "FTP")) {
          /* This is FTP, verify that we're using the same name and
             password as well */
          if(!strequal(needle->data->user, check->proto.ftp->user) ||
             !strequal(needle->data->passwd, check->proto.ftp->passwd)) {
            /* one of them was different */
            continue;
          }
        }
        dead = SocketIsDead(check->firstsocket);
        if(dead) {
          infof(data, "Connection %d seems to be dead!\n", i);
          Curl_disconnect(check); /* disconnect resources */
          data->connects[i]=NULL; /* nothing here */
          continue; /* try another one now */
        }
      }
      *usethis = check;
      return TRUE; /* yes, we found one to use! */
    }
    else { /* The requested needle connection is using a proxy,
              is the checked one using the same? */
      if(check->bits.httpproxy &&
         strequal(needle->proxyhost, check->proxyhost) &&
         needle->port == check->port) {
        /* This is the same proxy connection, use it! */
        *usethis = check;
        return TRUE;
      }
    }
  }
  return FALSE; /* no matching connecting exists */
}

/*
 * This function frees/closes a connection in the connection cache. This
 * should take the previously set policy into account when deciding which
 * of the connections to kill.
 */
static int
ConnectionKillOne(struct UrlData *data)
{
  size_t i;
  struct connectdata *conn;
  int highscore=-1;
  int connindex=-1;
  int score;
  CURLcode result;

  for(i=0; i< data->numconnects; i++) {
    conn = data->connects[i];
    
    if(!conn)
      continue;

    /*
     * By using the set policy, we score each connection.
     */
    switch(data->closepolicy) {
    default:
      score = 1; /* not implemented yet */
      break;
    }

    if(score > highscore) {
      highscore = score;
      connindex = i;
    }
  }
  if(connindex >= 0) {

    /* the winner gets the honour of being disconnected */
    result = Curl_disconnect(data->connects[connindex]);

    /* clean the array entry */
    data->connects[connindex] = NULL;
  }

  return connindex; /* return the available index or -1 */
}

/*
 * The given input connection struct pointer is to be stored. If the "cache"
 * is already full, we must clean out the most suitable using the previously
 * set policy.
 *
 * The given connection should be unique. That must've been checked prior to
 * this call.
 */
static unsigned int
ConnectionStore(struct UrlData *data,
                struct connectdata *conn)
{
  size_t i;
  for(i=0; i< data->numconnects; i++) {
    if(!data->connects[i])
      break;
  }
  if(i == data->numconnects) {
    /* there was no room available, kill one */
    i = ConnectionKillOne(data);
    infof(data, "Connection (#%d) was killed to make room\n", i);
  }

  data->connects[i] = conn; /* fill in this */
  conn->connectindex = i; /* make the child know where the pointer to this
                             particular data is stored */

  return i;
}

static CURLcode ConnectPlease(struct UrlData *data,
                              struct connectdata *conn)
{

#ifndef ENABLE_IPV6
  conn->firstsocket = socket(AF_INET, SOCK_STREAM, 0);

  memset((char *) &conn->serv_addr, '\0', sizeof(conn->serv_addr));
  memcpy((char *)&(conn->serv_addr.sin_addr),
         conn->hp->h_addr, conn->hp->h_length);
  conn->serv_addr.sin_family = conn->hp->h_addrtype;
  conn->serv_addr.sin_port = htons(conn->port);
#else
  /* IPv6-style */
  struct addrinfo *ai;
#endif

#if !defined(WIN32)||defined(__CYGWIN32__)
  /* We don't generally like checking for OS-versions, we should make this
     HAVE_XXXX based, although at the moment I don't have a decent test for
     this! */

#ifdef HAVE_INET_NTOA

#ifndef INADDR_NONE
#define INADDR_NONE (unsigned long) ~0
#endif

#ifndef ENABLE_IPV6
  /*************************************************************
   * Select device to bind socket to
   *************************************************************/
  if (data->device && (strlen(data->device)<255)) {
    struct sockaddr_in sa;
    struct hostent *h=NULL;
    char *hostdataptr=NULL;
    size_t size;
    char myhost[256] = "";
    unsigned long in;

    if(Curl_if2ip(data->device, myhost, sizeof(myhost))) {
      h = Curl_gethost(data, myhost, &hostdataptr);
    }
    else {
      if(strlen(data->device)>1) {
        h = Curl_gethost(data, data->device, &hostdataptr);
      }
      if(h) {
        /* we know data->device is shorter than the myhost array */
        strcpy(myhost, data->device);
      }
    }

    if(! *myhost) {
      /* need to fix this
         h=Curl_gethost(data,
         getmyhost(*myhost,sizeof(myhost)),
         hostent_buf,
         sizeof(hostent_buf));
      */
      printf("in here\n");
    }

    infof(data, "We connect from %s\n", myhost);

    if ( (in=inet_addr(myhost)) != INADDR_NONE ) {

      if ( h ) {
        memset((char *)&sa, 0, sizeof(sa));
        memcpy((char *)&sa.sin_addr,
               h->h_addr,
               h->h_length);
        sa.sin_family = AF_INET;
        sa.sin_addr.s_addr = in;
        sa.sin_port = 0; /* get any port */
	
        if( bind(conn->firstsocket, (struct sockaddr *)&sa, sizeof(sa)) >= 0) {
          /* we succeeded to bind */
          struct sockaddr_in add;
	
          size = sizeof(add);
          if(getsockname(conn->firstsocket, (struct sockaddr *) &add,
                         (socklen_t *)&size)<0) {
            failf(data, "getsockname() failed");
            return CURLE_HTTP_PORT_FAILED;
          }
        }
        else {
          switch(errno) {
          case EBADF:
            failf(data, "Invalid descriptor: %d", errno);
            break;
          case EINVAL:
            failf(data, "Invalid request: %d", errno);
            break;
          case EACCES:
            failf(data, "Address is protected, user not superuser: %d", errno);
            break;
          case ENOTSOCK:
            failf(data,
                  "Argument is a descriptor for a file, not a socket: %d",
                  errno);
            break;
          case EFAULT:
            failf(data, "Inaccessable memory error: %d", errno);
            break;
          case ENAMETOOLONG:
            failf(data, "Address too long: %d", errno);
            break;
          case ENOMEM:
            failf(data, "Insufficient kernel memory was available: %d", errno);
            break;
          default:
            failf(data,"errno %d\n");
          } /* end of switch */
	
          return CURLE_HTTP_PORT_FAILED;
        } /* end of else */
	
      } /* end of if  h */
      else {
	failf(data,"could't find my own IP address (%s)", myhost);
	return CURLE_HTTP_PORT_FAILED;
      }
    } /* end of inet_addr */

    else {
      failf(data, "could't find my own IP address (%s)", myhost);
      return CURLE_HTTP_PORT_FAILED;
    }

    if(hostdataptr)
      free(hostdataptr); /* allocated by Curl_gethost() */

  } /* end of device selection support */
#endif  /* end of HAVE_INET_NTOA */
#endif /* end of not WIN32 */
#endif /*ENABLE_IPV6*/

  /*************************************************************
   * Connect to server/proxy
   *************************************************************/
#ifdef ENABLE_IPV6
  conn->firstsocket = -1;
  for (ai = conn->hp; ai; ai = ai->ai_next) {
    conn->firstsocket = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
    if (conn->firstsocket < 0)
      continue;

    if (connect(conn->firstsocket, ai->ai_addr, ai->ai_addrlen) < 0) {
      close(conn->firstsocket);
      conn->firstsocket = -1;
      continue;
    }

    break;
  }
  conn->ai = ai;
  if (conn->firstsocket < 0) {
    failf(data, strerror(errno));
    return CURLE_COULDNT_CONNECT;
  }
#else
  if (connect(conn->firstsocket,
              (struct sockaddr *) &(conn->serv_addr),
              sizeof(conn->serv_addr)
              ) < 0) {
    switch(errno) {
#ifdef ECONNREFUSED
      /* this should be made nicer */
    case ECONNREFUSED:
      failf(data, "Connection refused");
      break;
    case EFAULT:
      failf(data, "Invalid socket address: %d",errno);
      break;
    case EISCONN:
      failf(data, "Socket already connected: %d",errno);
      break;
    case ETIMEDOUT:
      failf(data, "Timeout while accepting connection, server busy: %d",errno);
      break;
    case ENETUNREACH:
      failf(data, "Network is unreachable: %d",errno);
      break;
    case EADDRINUSE:
      failf(data, "Local address already in use: %d",errno);
      break;
    case EINPROGRESS:
      failf(data, "Socket is nonblocking and connection can not be completed immediately: %d",errno);
      break;
    case EALREADY:
      failf(data, "Socket is nonblocking and a previous connection attempt not completed: %d",errno);
      break;
    case EAGAIN:
      failf(data, "No more free local ports: %d",errno);
      break;
    case EACCES:
    case EPERM:
      failf(data, "Attempt to connect to broadcast address without socket broadcast flag or local firewall rule violated: %d",errno);
      break;
#endif
    case EINTR:
      failf(data, "Connection timed out");
      break;
    default:
      failf(data, "Can't connect to server: %d", errno);
      break;
    }
    return CURLE_COULDNT_CONNECT;
  }
#endif

  return CURLE_OK;
}

static CURLcode Connect(struct UrlData *data,
                        struct connectdata **in_connect,
                        bool allow_port) /* allow data->use_port ? */
{
  char *tmp;
  char *buf;
  CURLcode result;
  char resumerange[40]="";
  struct connectdata *conn;
  struct connectdata *conn_temp;
  char endbracket;
#ifdef HAVE_SIGACTION
  struct sigaction sigact;
#endif
  int urllen;

  /*************************************************************
   * Check input data
   *************************************************************/

  if(!data->url)
    return CURLE_URL_MALFORMAT;

  /* First, split up the current URL in parts so that we can use the
     parts for checking against the already present connections. In order
     to not have to modify everything at once, we allocate a temporary
     connection data struct and fill in for comparison purposes. */

  conn = (struct connectdata *)malloc(sizeof(struct connectdata));
  if(!conn) {
    *in_connect = NULL; /* clear the pointer */
    return CURLE_OUT_OF_MEMORY;
  }
  /* We must set the return variable as soon as possible, so that our
     parent can cleanup any possible allocs we may have done before
     any failure */
  *in_connect = conn;

  /* we have to init the struct */
  memset(conn, 0, sizeof(struct connectdata));

  /* and we setup a few fields in case we end up actually using this struct */
  conn->data = data;           /* remember our daddy */
  conn->upload_bufsize = UPLOAD_BUFSIZE; /* default upload buffer size */
  conn->firstsocket = -1;     /* no file descriptor */
  conn->secondarysocket = -1; /* no file descriptor */
  conn->connectindex = -1;    /* no index */
  conn->bits.httpproxy = data->bits.httpproxy; /* proxy-or-not status */

  /* Default protocol-indepent behaveiour doesn't support persistant
     connections, so we set this to force-close. Protocols that support
     this need to set this to FALSE in their "curl_do" functions. */
  conn->bits.close = TRUE;


  /***********************************************************
   * We need to allocate memory to store the path in. We get the size of the
   * full URL to be sure, and we need to make it at least 256 bytes since
   * other parts of the code will rely on this fact
   ***********************************************************/
#define LEAST_PATH_ALLOC 256
  urllen=strlen(data->url);
  if(urllen < LEAST_PATH_ALLOC)
    urllen=LEAST_PATH_ALLOC;
  
  conn->path=(char *)malloc(urllen);
  if(NULL == conn->path)
    return CURLE_OUT_OF_MEMORY; /* really bad error */

  /*************************************************************
   * Parse the URL.
   *
   * We need to parse the url even when using the proxy, because we will need
   * the hostname and port in case we are trying to SSL connect through the
   * proxy -- and we don't know if we will need to use SSL until we parse the
   * url ...
   ************************************************************/
  if((2 == sscanf(data->url, "%64[^:]://%[^\n]",
                  conn->protostr,
                  conn->path)) && strequal(conn->protostr, "file")) {
    /*
     * we deal with file://<host>/<path> differently since it supports no
     * hostname other than "localhost" and "127.0.0.1", which is unique among
     * the URL protocols specified in RFC 1738
     */

    if (strnequal(conn->path, "localhost/", 10) ||
        strnequal(conn->path, "127.0.0.1/", 10))
      /* If there's another host name than the one we support, <host>/ is
       * quietly ommitted */
      strcpy(conn->path, &conn->path[10]);

    strcpy(conn->protostr, "file"); /* store protocol string lowercase */
  }
  else {
    /* Set default host and default path */
    strcpy(conn->gname, "curl.haxx.se");
    strcpy(conn->path, "/");

    if (2 > sscanf(data->url,
                   "%64[^\n:]://%256[^\n/]%[^\n]",
                   conn->protostr, conn->gname, conn->path)) {
      
      /*
       * The URL was badly formatted, let's try the browser-style _without_
       * protocol specified like 'http://'.
       */
      if((1 > sscanf(data->url, "%256[^\n/]%[^\n]",
                     conn->gname, conn->path)) ) {
        /*
         * We couldn't even get this format.
         */
        failf(data, "<url> malformed");
        return CURLE_URL_MALFORMAT;
      }

      /*
       * Since there was no protocol part specified, we guess what protocol it
       * is based on the first letters of the server name.
       */

      if(strnequal(conn->gname, "FTP", 3)) {
        strcpy(conn->protostr, "ftp");
      }
      else if(strnequal(conn->gname, "GOPHER", 6))
        strcpy(conn->protostr, "gopher");
#ifdef USE_SSLEAY
      else if(strnequal(conn->gname, "HTTPS", 5))
        strcpy(conn->protostr, "https");
#endif /* USE_SSLEAY */
      else if(strnequal(conn->gname, "TELNET", 6))
        strcpy(conn->protostr, "telnet");
      else if (strnequal(conn->gname, "DICT", sizeof("DICT")-1))
        strcpy(conn->protostr, "DICT");
      else if (strnequal(conn->gname, "LDAP", sizeof("LDAP")-1))
        strcpy(conn->protostr, "LDAP");
      else {
        strcpy(conn->protostr, "http");
      }

      conn->protocol |= PROT_MISSING; /* not given in URL */
    }
  }

  buf = data->buffer; /* this is our buffer */

  /*************************************************************
   * Set signal handler
   *************************************************************/
#ifdef HAVE_SIGACTION
  sigaction(SIGALRM, NULL, &sigact);
  sigact.sa_handler = alarmfunc;
#ifdef SA_RESTART
  /* HPUX doesn't have SA_RESTART but defaults to that behaviour! */
  sigact.sa_flags &= ~SA_RESTART;
#endif
  sigaction(SIGALRM, &sigact, NULL);
#else
  /* no sigaction(), revert to the much lamer signal() */
#ifdef HAVE_SIGNAL
  signal(SIGALRM, alarmfunc);
#endif

#endif

  /*************************************************************
   * Take care of user and password authentication stuff
   *************************************************************/

  if(data->bits.user_passwd && !data->bits.use_netrc) {
    data->user[0] =0;
    data->passwd[0]=0;

    if(*data->userpwd != ':') {
      /* the name is given, get user+password */
      sscanf(data->userpwd, "%127[^:]:%127[^\n]",
             data->user, data->passwd);
    }
    else
      /* no name given, get the password only */
      sscanf(data->userpwd+1, "%127[^\n]", data->passwd);

    /* check for password, if no ask for one */
    if( !data->passwd[0] ) {
      if(!data->fpasswd ||
         data->fpasswd(data->passwd_client,
                       "password:", data->passwd, sizeof(data->passwd)))
        return CURLE_BAD_PASSWORD_ENTERED;
    }
  }

  /*************************************************************
   * Take care of proxy authentication stuff
   *************************************************************/
  if(data->bits.proxy_user_passwd) {
    data->proxyuser[0] =0;
    data->proxypasswd[0]=0;

    if(*data->proxyuserpwd != ':') {
      /* the name is given, get user+password */
      sscanf(data->proxyuserpwd, "%127[^:]:%127[^\n]",
             data->proxyuser, data->proxypasswd);
      }
    else
      /* no name given, get the password only */
      sscanf(data->proxyuserpwd+1, "%127[^\n]", data->proxypasswd);

    /* check for password, if no ask for one */
    if( !data->proxypasswd[0] ) {
      if(!data->fpasswd ||
         data->fpasswd( data->passwd_client,
                        "proxy password:",
                        data->proxypasswd,
                        sizeof(data->proxypasswd)))
        return CURLE_BAD_PASSWORD_ENTERED;
    }

  }

  /*************************************************************
   * Set a few convenience pointers 
   *************************************************************/
  conn->name = conn->gname;
  conn->ppath = conn->path;
  conn->hostname = conn->name;


  /*************************************************************
   * Detect what (if any) proxy to use
   *************************************************************/
  if(!data->bits.httpproxy) {
    /* If proxy was not specified, we check for default proxy environment
     * variables, to enable i.e Lynx compliance:
     *
     * http_proxy=http://some.server.dom:port/
     * https_proxy=http://some.server.dom:port/
     * ftp_proxy=http://some.server.dom:port/
     * gopher_proxy=http://some.server.dom:port/
     * no_proxy=domain1.dom,host.domain2.dom
     *   (a comma-separated list of hosts which should
     *   not be proxied, or an asterisk to override
     *   all proxy variables)
     * all_proxy=http://some.server.dom:port/
     *   (seems to exist for the CERN www lib. Probably
     *   the first to check for.)
     *
     * For compatibility, the all-uppercase versions of these variables are
     * checked if the lowercase versions don't exist.
     */
    char *no_proxy=NULL;
    char *proxy=NULL;
    char proxy_env[128];

    no_proxy=curl_getenv("no_proxy");
    if(!no_proxy)
      no_proxy=curl_getenv("NO_PROXY");

    if(!no_proxy || !strequal("*", no_proxy)) {
      /* NO_PROXY wasn't specified or it wasn't just an asterisk */
      char *nope;

      nope=no_proxy?strtok(no_proxy, ", "):NULL;
      while(nope) {
        if(strlen(nope) <= strlen(conn->name)) {
          char *checkn=
            conn->name + strlen(conn->name) - strlen(nope);
          if(strnequal(nope, checkn, strlen(nope))) {
            /* no proxy for this host! */
            break;
          }
        }
	nope=strtok(NULL, ", ");
      }
      if(!nope) {
	/* It was not listed as without proxy */
	char *protop = conn->protostr;
	char *envp = proxy_env;
	char *prox;

	/* Now, build <protocol>_proxy and check for such a one to use */
	while(*protop)
	  *envp++ = tolower(*protop++);

	/* append _proxy */
	strcpy(envp, "_proxy");

	/* read the protocol proxy: */
	prox=curl_getenv(proxy_env);

	if(!prox) {
          /* There was no lowercase variable, try the uppercase version: */
	  for(envp = proxy_env; *envp; envp++)
	    *envp = toupper(*envp);
	  prox=curl_getenv(proxy_env);
	}

	if(prox && *prox) { /* don't count "" strings */
	  proxy = prox; /* use this */
	}
	else {
	  proxy = curl_getenv("all_proxy"); /* default proxy to use */
	  if(!proxy)
            proxy=curl_getenv("ALL_PROXY");
	}

        if(proxy && *proxy) {
          /* we have a proxy here to set */
          data->proxy = proxy;
          data->bits.proxystringalloc=1; /* this needs to be freed later */
          data->bits.httpproxy=1;
        }
      } /* if (!nope) - it wasn't specified non-proxy */
    } /* NO_PROXY wasn't specified or '*' */
    if(no_proxy)
      free(no_proxy);
  } /* if not using proxy */

  /*************************************************************
   * No protocol but proxy usage needs attention
   *************************************************************/
  if((conn->protocol&PROT_MISSING) && data->bits.httpproxy ) {
    /* We're guessing prefixes here and since we're told to use a proxy, we
       need to add the protocol prefix to the URL string before we continue!
       */
    char *reurl;

    reurl = aprintf("%s://%s", conn->protostr, data->url);

    if(!reurl)
      return CURLE_OUT_OF_MEMORY;

    data->url = reurl;
    if(data->freethis)
      free(data->freethis);
    data->freethis = reurl;

    conn->protocol &= ~PROT_MISSING; /* switch that one off again */
  }

  /************************************************************
   * RESUME on a HTTP page is a tricky business. First, let's just check that
   * 'range' isn't used, then set the range parameter and leave the resume as
   * it is to inform about this situation for later use. We will then
   * "attempt" to resume, and if we're talking to a HTTP/1.1 (or later)
   * server, we will get the document resumed. If we talk to a HTTP/1.0
   * server, we just fail since we can't rewind the file writing from within
   * this function.
   ***********************************************************/
  if(data->resume_from) {
    if(!data->bits.set_range) {
      /* if it already was in use, we just skip this */
      snprintf(resumerange, sizeof(resumerange), "%d-", data->resume_from);
      data->range=strdup(resumerange); /* tell ourselves to fetch this range */
      data->bits.rangestringalloc = TRUE; /* mark as allocated */
      data->bits.set_range = 1; /* switch on range usage */
    }
  }

  /*************************************************************
   * Set timeout if that is being used
   *************************************************************/
  if(data->timeout) {
    /* We set the timeout on the connection/resolving phase first, separately
     * from the download/upload part to allow a maximum time on everything */
    myalarm(data->timeout); /* this sends a signal when the timeout fires
			       off, and that will abort system calls */
  }

  /*************************************************************
   * Setup internals depending on protocol
   *************************************************************/

  if (strequal(conn->protostr, "HTTP")) {
    conn->port = (data->use_port && allow_port)?data->use_port:PORT_HTTP;
    conn->remote_port = PORT_HTTP;
    conn->protocol |= PROT_HTTP;
    conn->curl_do = Curl_http;
    conn->curl_done = Curl_http_done;
    conn->curl_close = Curl_http_close;
  }
  else if (strequal(conn->protostr, "HTTPS")) {
#ifdef USE_SSLEAY

    conn->port = (data->use_port && allow_port)?data->use_port:PORT_HTTPS;
    conn->remote_port = PORT_HTTPS;
    conn->protocol |= PROT_HTTP;
    conn->protocol |= PROT_HTTPS;

    conn->curl_do = Curl_http;
    conn->curl_done = Curl_http_done;
    conn->curl_connect = Curl_http_connect;
    conn->curl_close = Curl_http_close;

#else /* USE_SSLEAY */
    failf(data, "libcurl was built with SSL disabled, https: not supported!");
    return CURLE_UNSUPPORTED_PROTOCOL;
#endif /* !USE_SSLEAY */
  }
  else if (strequal(conn->protostr, "GOPHER")) {
    conn->port = (data->use_port && allow_port)?data->use_port:PORT_GOPHER;
    conn->remote_port = PORT_GOPHER;
    /* Skip /<item-type>/ in path if present */
    if (isdigit((int)conn->path[1])) {
      conn->ppath = strchr(&conn->path[1], '/');
      if (conn->ppath == NULL)
	conn->ppath = conn->path;
      }
    conn->protocol |= PROT_GOPHER;
    conn->curl_do = Curl_http;
    conn->curl_done = Curl_http_done;
    conn->curl_close = Curl_http_close;
  }
  else if(strequal(conn->protostr, "FTP")) {
    char *type;
    conn->port = (data->use_port && allow_port)?data->use_port:PORT_FTP;
    conn->remote_port = PORT_FTP;
    conn->protocol |= PROT_FTP;

    if(data->bits.httpproxy &&
       !data->bits.tunnel_thru_httpproxy) {
      /* Unless we have asked to tunnel ftp operations through the proxy, we
         switch and use HTTP operations only */
      conn->curl_do = Curl_http;
      conn->curl_done = Curl_http_done;
      conn->curl_close = Curl_http_close;
    }
    else {
      conn->curl_do = Curl_ftp;
      conn->curl_done = Curl_ftp_done;
      conn->curl_connect = Curl_ftp_connect;
      conn->curl_disconnect = Curl_ftp_disconnect;
    }

    conn->ppath++; /* don't include the initial slash */

    /* FTP URLs support an extension like ";type=<typecode>" that
     * we'll try to get now! */
    type=strstr(conn->ppath, ";type=");
    if(!type) {
      type=strstr(conn->gname, ";type=");
    }
    if(type) {
      char command;
      *type=0;
      command = toupper(type[6]);
      switch(command) {
      case 'A': /* ASCII mode */
	data->bits.ftp_ascii = 1;
	break;
      case 'D': /* directory mode */
	data->bits.ftp_list_only = 1;
	break;
      case 'I': /* binary mode */
      default:
	/* switch off ASCII */
	data->bits.ftp_ascii = 0;
	break;
      }
    }
  }
  else if(strequal(conn->protostr, "TELNET")) {
    /* telnet testing factory */
    conn->protocol |= PROT_TELNET;

    conn->port = (data->use_port && allow_port)?data->use_port: PORT_TELNET;
    conn->remote_port = PORT_TELNET;
    conn->curl_do = Curl_telnet;
    conn->curl_done = Curl_telnet_done;
  }
  else if (strequal(conn->protostr, "DICT")) {
    conn->protocol |= PROT_DICT;
    conn->port = (data->use_port && allow_port)?data->use_port:PORT_DICT;
    conn->remote_port = PORT_DICT;
    conn->curl_do = Curl_dict;
    conn->curl_done = Curl_dict_done;
  }
  else if (strequal(conn->protostr, "LDAP")) {
    conn->protocol |= PROT_LDAP;
    conn->port = (data->use_port && allow_port)?data->use_port:PORT_LDAP;
    conn->remote_port = PORT_LDAP;
    conn->curl_do = Curl_ldap;
    conn->curl_done = Curl_ldap_done;
  }
  else if (strequal(conn->protostr, "FILE")) {
    conn->protocol |= PROT_FILE;

    conn->curl_do = Curl_file;
    /* no done() function */

    /* anyway, this is supposed to be the connect function so we better
       at least check that the file is present here! */
    result = Curl_file_connect(conn);

    /* Setup a "faked" transfer that'll do nothing */
    if(CURLE_OK == result) {
      result = Curl_Transfer(conn, -1, -1, FALSE, NULL, /* no download */
                             -1, NULL); /* no upload */
    }

    return result;
  }
  else {
    /* We fell through all checks and thus we don't support the specified
       protocol */
    failf(data, "Unsupported protocol: %s", conn->protostr);
    return CURLE_UNSUPPORTED_PROTOCOL;
  }

  /*************************************************************
   * .netrc scanning coming up
   *************************************************************/
  if(data->bits.use_netrc) {
    if(Curl_parsenetrc(conn->hostname, data->user, data->passwd)) {
      infof(data, "Couldn't find host %s in the .netrc file, using defaults",
            conn->hostname);
    }
    else
      data->bits.user_passwd = 1; /* enable user+password */

    /* weather we failed or not, we don't know which fields that were filled
       in anyway */
    if(!data->user[0])
      strcpy(data->user, CURL_DEFAULT_USER);
    if(!data->passwd[0])
      strcpy(data->passwd, CURL_DEFAULT_PASSWORD);
  }
  else if(!(data->bits.user_passwd) &&
	  (conn->protocol & (PROT_FTP|PROT_HTTP)) ) {
    /* This is a FTP or HTTP URL, and we haven't got the user+password in
     * the extra parameter, we will now try to extract the possible
     * user+password pair in a string like:
     * ftp://user:password@ftp.my.site:8021/README */
    char *ptr=NULL; /* assign to remove possible warnings */
    if((ptr=strchr(conn->name, '@'))) {
      /* there's a user+password given here, to the left of the @ */

      data->user[0] =0;
      data->passwd[0]=0;

      if(*conn->name != ':') {
        /* the name is given, get user+password */
        sscanf(conn->name, "%127[^:@]:%127[^@]",
               data->user, data->passwd);
      }
      else
        /* no name given, get the password only */
        sscanf(conn->name+1, "%127[^@]", data->passwd);

      if(data->user[0]) {
        char *newname=curl_unescape(data->user, 0);
        if(strlen(newname) < sizeof(data->user)) {
          strcpy(data->user, newname);
        }
        /* if the new name is longer than accepted, then just use
           the unconverted name, it'll be wrong but what the heck */
        free(newname);
      }

      /* check for password, if no ask for one */
      if( !data->passwd[0] ) {
        if(!data->fpasswd ||
           data->fpasswd(data->passwd_client,
                         "password:",data->passwd,sizeof(data->passwd)))
          return CURLE_BAD_PASSWORD_ENTERED;
      }
      else {
        /* we have a password found in the URL, decode it! */
        char *newpasswd=curl_unescape(data->passwd, 0);
        if(strlen(newpasswd) < sizeof(data->passwd)) {
          strcpy(data->passwd, newpasswd);
        }
        free(newpasswd);
      }

      conn->name = ++ptr;
      data->bits.user_passwd=1; /* enable user+password */
    }
    else {
      strcpy(data->user, CURL_DEFAULT_USER);
      strcpy(data->passwd, CURL_DEFAULT_PASSWORD);
    }
  }

  /*************************************************************
   * Figure out the remote port number
   *
   * No matter if we use a proxy or not, we have to figure out the remote
   * port number of various reasons.
   *
   * To be able to detect port number flawlessly, we must not confuse them
   * IPv6-specified addresses in the [0::1] style.
   *************************************************************/

  if((1 == sscanf(conn->name, "[%*39[0-9a-fA-F:]%c", &endbracket)) &&
     (']' == endbracket)) {
    /* this is a IPv6-style specified IP-address */
#ifndef ENABLE_IPV6
    failf(data, "You haven't enabled IPv6 support");
    return CURLE_URL_MALFORMAT;
#else
    tmp = strchr(conn->name, ']');

    tmp++; /* pass the ending bracket */
    if(':' != *tmp)
      tmp = NULL; /* no port number available */
#endif
  }
  else {
    /* traditional IPv4-style port-extracting */
    tmp = strchr(conn->name, ':');
  }

  if (tmp) {
    *tmp++ = '\0'; /* cut off the name there */
    conn->remote_port = atoi(tmp);
  }

  if(data->bits.httpproxy) {
    /* If this is supposed to use a proxy, we need to figure out the proxy
       host name name, so that we can re-use an existing connection
       that may exist registered to the same proxy host. */

#ifdef ENABLE_IPV6
    failf(data, "proxy yet to be supported");
    return CURLE_OUT_OF_MEMORY;
#else
    char *prox_portno;
    char *endofprot;

    /* We need to make a duplicate of the proxy so that we can modify the
       string safely. */
    char *proxydup=strdup(data->proxy);

    /* We use 'proxyptr' to point to the proxy name from now on... */
    char *proxyptr=proxydup;

    if(NULL == proxydup) {
      failf(data, "memory shortage");
      return CURLE_OUT_OF_MEMORY;
    }

    /* Daniel Dec 10, 1998:
       We do the proxy host string parsing here. We want the host name and the
       port name. Accept a protocol:// prefix, even though it should just be
       ignored. */

    /* 1. skip the protocol part if present */
    endofprot=strstr(proxyptr, "://");
    if(endofprot) {
      proxyptr = endofprot+3;
    }

    /* allow user to specify proxy.server.com:1080 if desired */
    prox_portno = strchr (proxyptr, ':');
    if (prox_portno) {
      *prox_portno = 0x0; /* cut off number from host name */
      prox_portno ++;
      /* now set the local port number */
      conn->port = atoi(prox_portno);
    }
    else if(data->proxyport) {
      /* None given in the proxy string, then get the default one if it is
         given */
      conn->port = data->proxyport;
    }

    /* now, clone the cleaned proxy host name */
    conn->proxyhost = strdup(proxyptr);

    free(proxydup); /* free the duplicate pointer and not the modified */
#endif /* end of IPv4-section */
  }

  /*************************************************************
   * Check the current list of connections to see if we can
   * re-use an already existing one or if we have to create a
   * new one.
   *************************************************************/

  /* reuse_fresh is set TRUE if we are told to use a fresh connection
     by force */
  if(!data->bits.reuse_fresh &&
     ConnectionExists(data, conn, &conn_temp)) {
    /*
     * We already have a connection for this, we got the former connection
     * in the conn_temp variable and thus we need to cleanup the one we
     * just allocated before we can move along and use the previously
     * existing one.
     */
    struct connectdata *old_conn = conn;
    char *path = old_conn->path; /* setup the current path pointer properly */
    if(old_conn->proxyhost)
      free(old_conn->proxyhost);
    conn = conn_temp;        /* use this connection from now on */
    free(conn->path);        /* free the previous path pointer */

    /* we need these pointers if we speak over a proxy */
    conn->name = old_conn->name;
    conn->hostname = old_conn->hostname;

    conn->path = path;       /* use this one */
    conn->ppath = path;      /* set this too */

    /* re-use init */
    conn->maxdownload = 0;   /* might have been used previously! */
    conn->bits.reuse = TRUE; /* yes, we're re-using here */

    free(old_conn);          /* we don't need this anymore */

    *in_connect = conn;      /* return this instead! */

    infof(data, "Re-using existing connection! (#%d)\n", conn->connectindex);
  }
  else {
    /*
     * This is a brand new connection, so let's store it in the connection
     * cache of ours!
     */
    ConnectionStore(data, conn);
  }

  /*************************************************************
   * Resolve the name of the server or proxy
   *************************************************************/
  if(!data->bits.httpproxy) {
    /* If not connecting via a proxy, extract the port from the URL, if it is
     * there, thus overriding any defaults that might have been set above. */
    conn->port =  conn->remote_port; /* it is the same port */

    /* Resolve target host right on */
    if(!conn->hp) {
#ifdef ENABLE_IPV6
      /* it might already be set if reusing a connection */
      conn->hp = Curl_getaddrinfo(data, conn->name, conn->port);
#else
      /* it might already be set if reusing a connection */
      conn->hp = Curl_gethost(data, conn->name, &conn->hostent_buf);
#endif
    }
    if(!conn->hp)
    {
      failf(data, "Couldn't resolve host '%s'", conn->name);
      return CURLE_COULDNT_RESOLVE_HOST;
    }
  }
  else if(!conn->hp) {
    /* This is a proxy that hasn't been resolved yet. It may be resolved
       if we're reusing an existing connection. */

    /* resolve proxy */
    conn->hp = Curl_gethost(data, conn->proxyhost, &conn->hostent_buf);
    if(!conn->hp) {
      failf(data, "Couldn't resolve proxy '%s'", conn->proxyhost);
      return CURLE_COULDNT_RESOLVE_PROXY;
    }
  }
  Curl_pgrsTime(data, TIMER_NAMELOOKUP);

  /*************************************************************
   * Proxy authentication
   *************************************************************/
  if(data->bits.proxy_user_passwd) {
    char *authorization;
    snprintf(data->buffer, BUFSIZE, "%s:%s",
             data->proxyuser, data->proxypasswd);
    if(Curl_base64_encode(data->buffer, strlen(data->buffer),
                          &authorization) >= 0) {
      if(conn->allocptr.proxyuserpwd)
        free(conn->allocptr.proxyuserpwd);
      conn->allocptr.proxyuserpwd =
        aprintf("Proxy-authorization: Basic %s\015\012", authorization);
      free(authorization);
    }
  }

  /*************************************************************
   * Send user-agent to HTTP proxies even if the target protocol
   * isn't HTTP.
   *************************************************************/
  if((conn->protocol&PROT_HTTP) || data->bits.httpproxy) {
    if(data->useragent) {
      if(conn->allocptr.uagent)
        free(conn->allocptr.uagent);
      conn->allocptr.uagent =
        aprintf("User-Agent: %s\015\012", data->useragent);
    }
  }

  if(-1 == conn->firstsocket) {
    /* Connect only if not already connected! */
    result = ConnectPlease(data, conn);
    if(CURLE_OK != result)
      return result;

    if(conn->curl_connect) {
      /* is there a connect() procedure? */

      /* set start time here for timeout purposes in the
       * connect procedure, it is later set again for the
       * progress meter purpose */
      conn->now = Curl_tvnow();

      /* Call the protocol-specific connect function */
      result = conn->curl_connect(conn);
      if(result != CURLE_OK)
        return result; /* pass back errors */
    }
  }

  Curl_pgrsTime(data, TIMER_CONNECT); /* we're connected */

  conn->now = Curl_tvnow(); /* time this *after* the connect is done */
  conn->bytecount = 0;
  
  /* Figure out the ip-number and display the first host name it shows: */
#ifdef ENABLE_IPV6
  {
    char hbuf[NI_MAXHOST];
#ifdef NI_WITHSCOPEID
    const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
#else
    const int niflags = NI_NUMERICHOST;
#endif
    struct addrinfo *ai = conn->ai;

    if (getnameinfo(ai->ai_addr, ai->ai_addrlen, hbuf, sizeof(hbuf), NULL, 0,
	niflags)) {
      snprintf(hbuf, sizeof(hbuf), "?");
    }
    if (ai->ai_canonname) {
      infof(data, "Connected to %s (%s)\n", ai->ai_canonname, hbuf);
    } else {
      infof(data, "Connected to %s\n", hbuf);
    }
  }
#else
  {
    struct in_addr in;
    (void) memcpy(&in.s_addr, *conn->hp->h_addr_list, sizeof (in.s_addr));
    infof(data, "Connected to %s (%s)\n", conn->hp->h_name, inet_ntoa(in));
  }
#endif

#ifdef __EMX__
  /* 20000330 mgs
   * the check is quite a hack...
   * we're calling _fsetmode to fix the problem with fwrite converting newline
   * characters (you get mangled text files, and corrupted binary files when
   * you download to stdout and redirect it to a file). */

  if ((data->out)->_handle == NULL) {
    _fsetmode(stdout, "b");
  }
#endif

  return CURLE_OK;
}

CURLcode Curl_connect(struct UrlData *data,
                      struct connectdata **in_connect,
                      bool allow_port)
{
  CURLcode code;
  struct connectdata *conn;

  /* call the stuff that needs to be called */
  code = Connect(data, in_connect, allow_port);

  if(CURLE_OK != code) {
    /* We're not allowed to return failure with memory left allocated
       in the connectdata struct, free those here */
    conn = (struct connectdata *)*in_connect;
    if(conn)
      Curl_disconnect(conn);      /* close the connection */
  }
  return code;
}


CURLcode Curl_done(struct connectdata *conn)
{
  struct UrlData *data=conn->data;
  CURLcode result;

  /* this calls the protocol-specific function pointer previously set */
  if(conn->curl_done)
    result = conn->curl_done(conn);
  else
    result = CURLE_OK;

  Curl_pgrsDone(data); /* done with the operation */

  /* if data->bits.reuse_forbid is TRUE, it means the libcurl client has
     forced us to close this no matter what we think.
    
     if conn->bits.close is TRUE, it means that the connection should be
     closed in spite of all our efforts to be nice, due to protocol
     restrictions in our or the server's end */
  if(data->bits.reuse_forbid ||
     ((CURLE_OK == result) && conn->bits.close))
    result = Curl_disconnect(conn); /* close the connection */
  else
    infof(data, "Connection (#%d) left alive\n", conn->connectindex);

  return result;
}

CURLcode Curl_do(struct connectdata *conn)
{
  CURLcode result=CURLE_OK;

  if(conn->curl_do)
    /* generic protocol-specific function pointer set in curl_connect() */
    result = conn->curl_do(conn);

  return result;
}