This file is indexed.

/usr/bin/sendEmail is in sendemail 1.56-5.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

   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
#!/usr/bin/perl -w
##############################################################################
## sendEmail
## Written by: Brandon Zehm <caspian@dotconf.net>
##
## License:
##  sendEmail (hereafter referred to as "program") is free software;
##  you can redistribute it and/or modify it under the terms of the GNU General
##  Public License as published by the Free Software Foundation; either version
##  2 of the License, or (at your option) any later version.
##  When redistributing modified versions of this source code it is recommended
##  that that this disclaimer and the above coder's names are included in the
##  modified code.
##
## Disclaimer:
##  This program is provided with no warranty of any kind, either expressed or
##  implied.  It is the responsibility of the user (you) to fully research and
##  comprehend the usage of this program.  As with any tool, it can be misused,
##  either intentionally (you're a vandal) or unintentionally (you're a moron).
##  THE AUTHOR(S) IS(ARE) NOT RESPONSIBLE FOR ANYTHING YOU DO WITH THIS PROGRAM
##  or anything that happens because of your use (or misuse) of this program,
##  including but not limited to anything you, your lawyers, or anyone else
##  can dream up.  And now, a relevant quote directly from the GPL:
##
## NO WARRANTY
##
##  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
##  FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
##  OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
##  PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
##  OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
##  TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
##  PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
##  REPAIR OR CORRECTION.
##
##############################################################################
use strict;
use IO::Socket;
use IO::Socket::INET6;


########################
##  Global Variables  ##
########################

my %conf = (
    ## General
    "programName"          => $0,                                  ## The name of this program
    "version"              => '1.56',                              ## The version of this program
    "authorName"           => 'Brandon Zehm',                      ## Author's Name
    "authorEmail"          => 'caspian@dotconf.net',               ## Author's Email Address
    "timezone"             => '+0000',                             ## We always use +0000 for the time zone
    "hostname"             => 'changeme',                          ## Used in printmsg() for all output (is updated later in the script).
    "debug"                => 0,                                   ## Default debug level
    "error"                => '',                                  ## Error messages will often be stored here
    
    ## Logging
    "stdout"               => 1,
    "logging"              => 0,                                   ## If this is true the printmsg function prints to the log file
    "logFile"              => '',                                  ## If this is specified (form the command line via -l) this file will be used for logging.
    
    ## Network
    "server"               => 'localhost',                         ## Default SMTP server
    "port"                 => 25,                                  ## Default port
    "bindaddr"             => '',                                  ## Default local bind address
    "alarm"                => '',                                  ## Default timeout for connects and reads, this gets set from $opt{'timeout'}
    "tls_client"           => 0,                                   ## If TLS is supported by the client (us)
    "tls_server"           => 0,                                   ## If TLS is supported by the remote SMTP server
    
    ## Sendmail
    "sendmail"             => '/usr/bin/sendmail',
    "use_sendmail"         => 0,

    ## Email
    "delimiter"            => "----MIME delimiter for sendEmail-"  ## MIME Delimiter
                              . rand(1000000),                     ## Add some randomness to the delimiter
    "Message-ID"           => rand(1000000) . "-sendEmail",        ## Message-ID for email header
    
);


## This hash stores the options passed on the command line via the -o option.
my %opt = (
    ## Addressing
    "reply-to"             => '',                                  ## Reply-To field
    
    ## Message
    "message-file"         => '',                                  ## File to read message body from
    "message-header"       => '',                                  ## Additional email header line(s)
    "message-format"       => 'normal',                            ## If "raw" is specified the message is sent unmodified
    "message-charset"      => 'iso-8859-1',                        ## Message character-set
    "message-content-type" => 'auto',                              ## auto, text, html or an actual string to put into the content-type header.
    
    ## Network
    "timeout"              => 60,                                  ## Default timeout for connects and reads, this is copied to $conf{'alarm'} later.
    "fqdn"                 => 'changeme',                          ## FQDN of this machine, used during SMTP communication (is updated later in the script).
    
    ## eSMTP
    "username"             => '',                                  ## Username used in SMTP Auth
    "password"             => '',                                  ## Password used in SMTP Auth
    "tls"                  => 'auto',                              ## Enable or disable TLS support.  Options: auto, yes, no
    
);

## More variables used later in the program
my $SERVER;
my $CRLF        = "\015\012";
my $LF          = "\012";
my $LTERM       = $CRLF;
my $subject     = '';
my $header      = '';
my $message     = '';
my $from        = '';
my @to          = ();
my @cc          = ();
my @bcc         = ();
my @attachments = ();
my @attachments_names = ();

## For printing colors to the console
my ${colorRed}    = "\033[31;1m";
my ${colorGreen}  = "\033[32;1m";
my ${colorCyan}   = "\033[36;1m";
my ${colorWhite}  = "\033[37;1m";
my ${colorNormal} = "\033[m";
my ${colorBold}   = "\033[1m";
my ${colorNoBold} = "\033[0m";

## Don't use shell escape codes on Windows systems
if ($^O =~ /win/i) {
    ${colorRed} = ${colorGreen} = ${colorCyan} = ${colorWhite} = ${colorNormal} = ${colorBold} = ${colorNoBold} = "";
}

## Load IO::Socket::SSL if it's available
eval    { require IO::Socket::SSL; };
if ($@) { $conf{'tls_client'} = 0; }
else    { $conf{'tls_client'} = 1; }






#############################
##                          ##
##      FUNCTIONS            ##
##                          ##
#############################





###############################################################################################
##  Function: initialize ()
##  
##  Does all the script startup jibberish.
##  
###############################################################################################
sub initialize {

    ## Set STDOUT to flush immediatly after each print  
    $| = 1;
    
    ## Intercept signals
    $SIG{'QUIT'}  = sub { quit("EXITING: Received SIG$_[0]", 1); };
    $SIG{'INT'}   = sub { quit("EXITING: Received SIG$_[0]", 1); };
    $SIG{'KILL'}  = sub { quit("EXITING: Received SIG$_[0]", 1); };
    $SIG{'TERM'}  = sub { quit("EXITING: Received SIG$_[0]", 1); };
  
    ## ALARM and HUP signals are not supported in Win32
    unless ($^O =~ /win/i) {
        $SIG{'HUP'}   = sub { quit("EXITING: Received SIG$_[0]", 1); };
        $SIG{'ALRM'}  = sub { quit("EXITING: Received SIG$_[0]", 1); };
    }
    
    ## Fixup $conf{'programName'}
    $conf{'programName'} =~ s/(.)*[\/,\\]//;
    $0 = $conf{'programName'} . " " . join(" ", @ARGV);
    
    ## Fixup $conf{'hostname'} and $opt{'fqdn'}
    if ($opt{'fqdn'} eq 'changeme') { $opt{'fqdn'} = get_hostname(1); }
    if ($conf{'hostname'} eq 'changeme') { $conf{'hostname'} = $opt{'fqdn'}; $conf{'hostname'} =~ s/\..*//; }
    
    return(1);
}















###############################################################################################
##  Function: processCommandLine ()
##  
##  Processes command line storing important data in global vars (usually %conf)
##  
###############################################################################################
sub processCommandLine {
    
    
    ############################
    ##  Process command line  ##
    ############################
    
    my @ARGS = @ARGV;  ## This is so later we can re-parse the command line args later if we need to
    my $numargv = @ARGS;
    help() unless ($numargv);
    my $counter = 0;
    
    for ($counter = 0; $counter < $numargv; $counter++) {
  
        if ($ARGS[$counter] =~ /^-h$/i) {                    ## Help ##
            help();
        }
        
        elsif ($ARGS[$counter] eq "") {                      ## Ignore null arguments
            ## Do nothing
        }
        
        elsif ($ARGS[$counter] =~ /^--help/) {               ## Topical Help ##
            $counter++;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
                helpTopic($ARGS[$counter]);
            }
            else {
                help();
            }
        }
        
        elsif ($ARGS[$counter] =~ /^-o$/i) {                 ## Options specified with -o ##
            $counter++;
            ## Loop through each option passed after the -o
            while ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
                
                if ($ARGS[$counter] !~ /(\S+)=(\S.*)/) {
                    printmsg("WARNING => Name/Value pair [$ARGS[$counter]] is not properly formatted", 0);
                    printmsg("WARNING => Arguments proceeding -o should be in the form of \"name=value\"", 0);
                }
                else {
                    if (exists($opt{$1})) {
                        if ($1 eq 'message-header') {
                            $opt{$1} .= $2 . $CRLF;
                        }
                        else {
                            $opt{$1} = $2;
                        }
                        printmsg("DEBUG => Assigned \$opt{} key/value: $1 => $2", 3);
                    }
                    else {
                        printmsg("WARNING => Name/Value pair [$ARGS[$counter]] will be ignored: unknown key [$1]", 0);
                        printmsg("HINT => Try the --help option to find valid command line arguments", 1);
                    }
                }
                $counter++;
            }   $counter--;
        }
        
        elsif ($ARGS[$counter] =~ /^-f$/) {                  ## From ##
            $counter++;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) { $from = $ARGS[$counter]; }
            else { printmsg("WARNING => The argument after -f was not an email address!", 0); $counter--; }
        }
        
        elsif ($ARGS[$counter] =~ /^-t$/) {                  ## To ##
            $counter++;
            while ($ARGS[$counter] && ($ARGS[$counter] !~ /^-/)) {
                if ($ARGS[$counter] =~ /[;,]/) {
                    push (@to, split(/[;,]/, $ARGS[$counter]));
                }
                else {
                    push (@to,$ARGS[$counter]);
                }
                $counter++;
            }   $counter--;
        }
        
        elsif ($ARGS[$counter] =~ /^-cc$/) {                 ## Cc ##
            $counter++;
            while ($ARGS[$counter] && ($ARGS[$counter] !~ /^-/)) {
                if ($ARGS[$counter] =~ /[;,]/) {
                    push (@cc, split(/[;,]/, $ARGS[$counter]));
                }
                else {
                    push (@cc,$ARGS[$counter]);
                }
                $counter++;
            }   $counter--;
        }
        
        elsif ($ARGS[$counter] =~ /^-bcc$/) {                ## Bcc ##
            $counter++;
            while ($ARGS[$counter] && ($ARGS[$counter] !~ /^-/)) {
                if ($ARGS[$counter] =~ /[;,]/) {
                    push (@bcc, split(/[;,]/, $ARGS[$counter]));
                }
                else {
                    push (@bcc,$ARGS[$counter]);
                }
                $counter++;
            }   $counter--;
        }
        
        elsif ($ARGS[$counter] =~ /^-m$/) {                  ## Message ##
            $counter++;
            $message = "";
            while ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
                if ($message) { $message .= " "; }
                $message .= $ARGS[$counter];
                $counter++;
            }   $counter--;
            
            ## Replace '\n' with $CRLF.
            ## This allows newlines with messages sent on the command line
           ## XXX: This might cause problems with use_sendmail=1
            $message =~ s/\\n/$CRLF/g;
        }
        
        elsif ($ARGS[$counter] =~ /^-u$/) {                  ## Subject ##
            $counter++;
            $subject = "";
            while ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
                if ($subject) { $subject .= " "; }
                $subject .= $ARGS[$counter];
                $counter++;
            }   $counter--;
        }
        
        elsif ($ARGS[$counter] =~ /^-s$/) {                  ## Server ##
            $counter++;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
                $conf{'server'} = $ARGS[$counter];
                if ($conf{'server'} =~ /:/) {                ## Port ##
                    ($conf{'server'},$conf{'port'}) = split(":",$conf{'server'});
                }
            }
            else { printmsg("WARNING - The argument after -s was not the server!", 0); $counter--; }
        }

        elsif ($ARGS[$counter] =~ /^-S$/) {                  ## Sendmail ##
            $counter++;
            $conf{'use_sendmail'} = 1;
            $LTERM = $LF;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
                $conf{'sendmail'} = $ARGS[$counter];
            } else {
                $counter--;
            }
        }

        elsif ($ARGS[$counter] =~ /^-b$/) {                  ## Bind Address ##
            $counter++;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
                $conf{'bindaddr'} = $ARGS[$counter];
            }
            else { printmsg("WARNING - The argument after -b was not the bindaddr!", 0); $counter--; }
        }
        
        elsif ($ARGS[$counter] =~ /^-a$/) {                  ## Attachments ##
            $counter++;
            while ($ARGS[$counter] && ($ARGS[$counter] !~ /^-/)) {
                push (@attachments,$ARGS[$counter]);
                $counter++;
            }   $counter--;
        }
        
        elsif ($ARGS[$counter] =~ /^-xu$/) {                  ## AuthSMTP Username ##
            $counter++;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
               $opt{'username'} = $ARGS[$counter];
            }
            else {
                printmsg("WARNING => The argument after -xu was not valid username!", 0);
                $counter--;
            }
        }
        
        elsif ($ARGS[$counter] =~ /^-xp$/) {                  ## AuthSMTP Password ##
            $counter++;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) {
               $opt{'password'} = $ARGS[$counter];
            }
            else {
                printmsg("WARNING => The argument after -xp was not valid password!", 0);
                $counter--;
            }
        }
        
        elsif ($ARGS[$counter] =~ /^-l$/) {                  ## Logging ##
            $counter++;
            $conf{'logging'} = 1;
            if ($ARGS[$counter] && $ARGS[$counter] !~ /^-/) { $conf{'logFile'} = $ARGS[$counter]; }
            else { printmsg("WARNING - The argument after -l was not the log file!", 0); $counter--; }
        }
        
        elsif ($ARGS[$counter] =~ s/^-v+//i) {               ## Verbosity ##
            my $tmp = (length($&) - 1);
            $conf{'debug'} += $tmp;
        }
        
        elsif ($ARGS[$counter] =~ /^-q$/) {                  ## Quiet ##
            $conf{'stdout'} = 0;
        }
        
        else {
            printmsg("Error: \"$ARGS[$counter]\" is not a recognized option!", 0);
            help();
        }
        
    }






    
    
    ###################################################
    ##  Verify required variables are set correctly  ##
    ###################################################
    
    ## Make sure we have something in $conf{hostname} and $opt{fqdn}
    if ($opt{'fqdn'} =~ /\./) {
        $conf{'hostname'} = $opt{'fqdn'};
        $conf{'hostname'} =~ s/\..*//;
    }
    
    if (!$conf{'server'}) { $conf{'server'} = 'localhost'; }
    if (!$conf{'port'})   { $conf{'port'} = 25; }
    if ($conf{'use_sendmail'} && !$conf{'sendmail'}) {
        $conf{'sendmail'} = "/usr/bin/sendmail";
    }
    if (!$from) {
        quit("ERROR => You must specify a 'from' field!  Try --help.", 1);
    }
    if ( ((scalar(@to)) + (scalar(@cc)) + (scalar(@bcc))) <= 0) {
        quit("ERROR => You must specify at least one recipient via -t, -cc, or -bcc", 1);
    }
    
    ## Make sure email addresses look OK.
    foreach my $addr (@to, @cc, @bcc, $from, $opt{'reply-to'}) {
        if ($addr) {
            if (!returnAddressParts($addr)) {
                printmsg("ERROR => Can't use improperly formatted email address: $addr", 0);
                printmsg("HINT => Try viewing the extended help on addressing with \"--help addressing\"", 1);
                quit("", 1);
            }
        }
    }
    
    ## Make sure all attachments exist.
    foreach my $file (@attachments) {
        if ( (! -f $file) or (! -r $file) ) {
            printmsg("ERROR => The attachment [$file] doesn't exist!", 0);
            printmsg("HINT => Try specifying the full path to the file or reading extended help with \"--help message\"", 1);
            quit("", 1);
        }
    }
    
    if ($conf{'logging'} and (!$conf{'logFile'})) {
        quit("ERROR => You used -l to enable logging but didn't specify a log file!", 1);
    }    
    
    ## Check network parameters if needed
    if ( !$conf{'use_sendmail'} ) {
        if ( $opt{'username'} ) {
            if (!$opt{'password'}) {
                ## Prompt for a password since one wasn't specified with the -xp option.
                $SIG{'ALRM'} = sub { quit("ERROR => Timeout waiting for password inpupt", 1); };
                alarm(60) if ($^O !~ /win/i);  ## alarm() doesn't work in win32
                print "Password: ";
                $opt{'password'} = <STDIN>; chomp $opt{'password'};
                if (!$opt{'password'}) {
                    quit("ERROR => A username for SMTP authentication was specified, but no password!", 1);
                }
            }
        }
        
        ## Validate the TLS setting
        $opt{'tls'} = lc($opt{'tls'});
        if ($opt{'tls'} !~ /^(auto|yes|no)$/) {
            quit("ERROR => Invalid TLS setting ($opt{'tls'}). Must be one of auto, yes, or no.", 1);
        }
        
        ## If TLS is set to "yes", make sure sendEmail loaded the libraries needed.
        if ($opt{'tls'} eq 'yes' and $conf{'tls_client'} == 0) {
            quit("ERROR => No TLS support!  SendEmail can't load required libraries. (try installing Net::SSLeay and IO::Socket::SSL)", 1);
        }
    }
    
    ## Return 0 errors
    return(0);
}
















## getline($socketRef)
sub getline {
    my ($socketRef) = @_;
    local ($/) = "\r\n";
    return $$socketRef->getline;
}




## Receive a (multiline?) SMTP response from ($socketRef)
sub getResponse {
    my ($socketRef) = @_;
    my ($tmp, $reply);
    local ($/) = "\r\n";
    return undef unless defined($tmp = getline($socketRef));
    return("getResponse() socket is not open") unless ($$socketRef->opened);
    ## Keep reading lines if it's a multi-line response
    while ($tmp =~ /^\d{3}-/o) {
        $reply .= $tmp;
        return undef unless defined($tmp = getline($socketRef));
    }
    $reply .= $tmp;
    $reply =~ s/\r?\n$//o;
    return $reply;
}




###############################################################################################
##  Function:    SMTPchat ( [string $command] )
##
##  Description: Sends $command to the SMTP server (on SERVER) and awaits a successful
##               reply form the server.  If the server returns an error, or does not reply
##               within $conf{'alarm'} seconds an error is generated.
##               NOTE: $command is optional, if no command is specified then nothing will
##               be sent to the server, but a valid response is still required from the server.
##
##  Input:       [$command]          A (optional) valid SMTP command (ex. "HELO")
##  
##  
##  Output:      Returns zero on success, or non-zero on error.  
##               Error messages will be stored in $conf{'error'}
##               A copy of the last SMTP response is stored in the global variable
##               $conf{'SMTPchat_response'}
##               
##  
##  Example:     SMTPchat ("HELO mail.isp.net");
###############################################################################################
sub SMTPchat {
    my ($command) = @_;
    
    printmsg("INFO => Sending: \t$command", 1) if ($command);
    
    ## Send our command
    print $SERVER "$command$CRLF" if ($command);
    
    ## Read a response from the server
    $SIG{'ALRM'} = sub { $conf{'error'} = "alarm"; $SERVER->close(); };
    alarm($conf{'alarm'}) if ($^O !~ /win/i);  ## alarm() doesn't work in win32;
    my $result = $conf{'SMTPchat_response'} = getResponse(\$SERVER); 
    alarm(0) if ($^O !~ /win/i);  ## alarm() doesn't work in win32;
    
    ## Generate an alert if we timed out
    if ($conf{'error'} eq "alarm") {
        $conf{'error'} = "ERROR => Timeout while reading from $conf{'server'}:$conf{'port'} There was no response after $conf{'alarm'} seconds.";
        return(1);
    }
    
    ## Make sure the server actually responded
    if (!$result) {
        $conf{'error'} = "ERROR => $conf{'server'}:$conf{'port'} returned a zero byte response to our query.";
        return(2);
    }
    
    ## Validate the response
    if (evalSMTPresponse($result)) {
        ## conf{'error'} will already be set here
        return(2);
    }
    
    ## Print the success messsage
    printmsg($conf{'error'}, 1);
    
    ## Return Success
    return(0);
}












###############################################################################################
##  Function:    evalSMTPresponse (string $message )
##
##  Description: Searches $message for either an  SMTP success or error code, and returns
##               0 on success, and the actual error code on error.
##               
##
##  Input:       $message          Data received from a SMTP server (ex. "220 
##                                
##  
##  Output:      Returns zero on success, or non-zero on error.  
##               Error messages will be stored in $conf{'error'}
##               
##  
##  Example:     SMTPchat ("HELO mail.isp.net");
###############################################################################################
sub evalSMTPresponse {
    my ($message) = @_;
    
    ## Validate input
    if (!$message) { 
        $conf{'error'} = "ERROR => No message was passed to evalSMTPresponse().  What happened?";
        return(1)
    }
    
    printmsg("DEBUG => evalSMTPresponse() - Checking for SMTP success or error status in the message: $message ", 3);
    
    ## Look for a SMTP success code
    if ($message =~ /^([23]\d\d)/) {
        printmsg("DEBUG => evalSMTPresponse() - Found SMTP success code: $1", 2);
        $conf{'error'} = "SUCCESS => Received: \t$message";
        return(0);
    }
    
    ## Look for a SMTP error code
    if ($message =~ /^([45]\d\d)/) {
        printmsg("DEBUG => evalSMTPresponse() - Found SMTP error code: $1", 2);
        $conf{'error'} = "ERROR => Received: \t$message";
        return($1);
    }
    
    ## If no SMTP codes were found return an error of 1
    $conf{'error'} = "ERROR => Received a message with no success or error code. The message received was: $message";
    return(2);
    
}










#########################################################
# SUB: &return_month(0,1,etc)
#  returns the name of the month that corrosponds
#  with the number.  returns 0 on error.
#########################################################
sub return_month {
    my $x = $_[0];
    if ($x == 0)  { return 'Jan'; }
    if ($x == 1)  { return 'Feb'; }
    if ($x == 2)  { return 'Mar'; }
    if ($x == 3)  { return 'Apr'; }
    if ($x == 4)  { return 'May'; }
    if ($x == 5)  { return 'Jun'; }
    if ($x == 6)  { return 'Jul'; }
    if ($x == 7)  { return 'Aug'; }
    if ($x == 8)  { return 'Sep'; }
    if ($x == 9)  { return 'Oct'; }
    if ($x == 10) { return 'Nov'; }
    if ($x == 11) { return 'Dec'; }
    return (0);
}
















#########################################################
# SUB: &return_day(0,1,etc)
#  returns the name of the day that corrosponds
#  with the number.  returns 0 on error.
#########################################################
sub return_day {
    my $x = $_[0];
    if ($x == 0)  { return 'Sun'; }
    if ($x == 1)  { return 'Mon'; }
    if ($x == 2)  { return 'Tue'; }
    if ($x == 3)  { return 'Wed'; }
    if ($x == 4)  { return 'Thu'; }
    if ($x == 5)  { return 'Fri'; }
    if ($x == 6)  { return 'Sat'; }
    return (0);
}
















###############################################################################################
##  Function:    returnAddressParts(string $address)
##
##  Description: Returns a two element array containing the "Name" and "Address" parts of 
##               an email address.
##  
## Example:      "Brandon Zehm <caspian@dotconf.net>"
##               would return: ("Brandon Zehm", "caspian@dotconf.net");
## 
##               "caspian@dotconf.net"
##               would return: ("caspian@dotconf.net", "caspian@dotconf.net")
###############################################################################################
sub returnAddressParts {
    my $input = $_[0];
    my $name = "";
    my $address = "";
    
    ## Make sure to fail if it looks totally invalid
    if ($input !~ /(\S+\@\S+)/) {
        $conf{'error'} = "ERROR => The address [$input] doesn't look like a valid email address, ignoring it";
        return(undef());
    }
    
    ## Check 1, should find addresses like: "Brandon Zehm <caspian@dotconf.net>"
    elsif ($input =~ /^\s*(\S(.*\S)?)\s*<(\S+\@\S+)>/o) {
        ($name, $address) = ($1, $3);
    }
    
    ## Otherwise if that failed, just get the address: <caspian@dotconf.net>
    elsif ($input =~ /<(\S+\@\S+)>/o) {
        $name = $address = $1;
    }
    
    ## Or maybe it was formatted this way: caspian@dotconf.net
    elsif ($input =~ /(\S+\@\S+)/o) {
        $name = $address = $1;
    }
    
    ## Something stupid happened, just return an error.
    unless ($name and $address) {
        printmsg("ERROR => Couldn't parse the address: $input", 0);
        printmsg("HINT => If you think this should work, consider reporting this as a bug to $conf{'authorEmail'}", 1);
        return(undef());
    }
    
    ## Make sure there aren't invalid characters in the address, and return it.
    my $ctrl        = '\000-\037';
    my $nonASCII    = '\x80-\xff';
    if ($address =~ /[<> ,;:"'\[\]\\$ctrl$nonASCII]/) {
        printmsg("WARNING => The address [$address] seems to contain invalid characters: continuing anyway", 0);
    }
    return($name, $address);
}
















###############################################################################################
##  Function:    base64_encode(string $data, bool $chunk)
##
##  Description: Returns $data as a base64 encoded string.
##               If $chunk is true, the encoded data is returned in 76 character long lines
##               with the final \CR\LF removed.
##
##  Note: This is only used from the smtp auth section of code.
##        At some point it would be nice to merge the code that encodes attachments and this.
###############################################################################################
sub base64_encode {
    my $data = $_[0];
    my $chunk = $_[1];
    my $tmp = '';
    my $base64 = '';
    
    ###################################
    ## Convert binary data to base64 ##
    ###################################
    while ($data =~ s/(.{45})//s) {        ## Get 45 bytes from the binary string
        $tmp = substr(pack('u', $&), 1);   ## Convert the binary to uuencoded text
        chop($tmp);
        $tmp =~ tr|` -_|AA-Za-z0-9+/|;     ## Translate from uuencode to base64
        $base64 .= $tmp;
    }
    
    ##########################
    ## Encode the leftovers ##
    ##########################
    my $padding = "";
    if ( ($data) and (length($data) > 0) ) {
        $padding = (3 - length($data) % 3) % 3;    ## Set flag if binary data isn't divisible by 3
        $tmp = substr(pack('u', $data), 1);        ## Convert the binary to uuencoded text
        chop($tmp);
        $tmp =~ tr|` -_|AA-Za-z0-9+/|;             ## Translate from uuencode to base64
        $base64 .= $tmp;
    }
    
    ############################
    ## Fix padding at the end ##
    ############################
    $data = '';
    $base64 =~ s/.{$padding}$/'=' x $padding/e if $padding; ## Fix the end padding if flag (from above) is set
    if ($chunk) {
        while ($base64 =~ s/(.{1,76})//s) {                     ## Put $LTERM after each 76 characters
            $data .= "$1$LTERM";
        }
    }
    else {
        $data = $base64;
    }
    
    ## Remove any trailing LTERM's
    $data =~ s/(\r|\n)*$//s;
    return($data);
}









#########################################################
# SUB: send_attachment("/path/filename")
# Sends the mime headers and base64 encoded file
# to the email server.
#########################################################
sub send_attachment {
    my ($filename) = @_;                             ## Get filename passed
    my (@fields, $y, $filename_name, $encoding,      ## Local variables
        @attachlines, $content_type);
    my $bin = 1;
    
    @fields = split(/\/|\\/, $filename);             ## Get the actual filename without the path  
    $filename_name = pop(@fields);       
    push @attachments_names, $filename_name;         ## FIXME: This is only used later for putting in the log file
    
    ##########################
    ## Autodetect Mime Type ##
    ##########################
    
    @fields = split(/\./, $filename_name);
    $encoding = $fields[$#fields];
    
    if ($encoding =~ /txt|text|log|conf|^c$|cpp|^h$|inc|m3u/i) {   $content_type = 'text/plain';                      }
    elsif ($encoding =~ /html|htm|shtml|shtm|asp|php|cfm/i) {      $content_type = 'text/html';                       }
    elsif ($encoding =~ /sh$/i) {                                  $content_type = 'application/x-sh';                }
    elsif ($encoding =~ /tcl/i) {                                  $content_type = 'application/x-tcl';               }
    elsif ($encoding =~ /pl$/i) {                                  $content_type = 'application/x-perl';              }
    elsif ($encoding =~ /js$/i) {                                  $content_type = 'application/x-javascript';        }
    elsif ($encoding =~ /man/i) {                                  $content_type = 'application/x-troff-man';         }
    elsif ($encoding =~ /gif/i) {                                  $content_type = 'image/gif';                       }
    elsif ($encoding =~ /jpg|jpeg|jpe|jfif|pjpeg|pjp/i) {          $content_type = 'image/jpeg';                      }
    elsif ($encoding =~ /tif|tiff/i) {                             $content_type = 'image/tiff';                      }
    elsif ($encoding =~ /xpm/i) {                                  $content_type = 'image/x-xpixmap';                 }
    elsif ($encoding =~ /bmp/i) {                                  $content_type = 'image/x-MS-bmp';                  }
    elsif ($encoding =~ /pcd/i) {                                  $content_type = 'image/x-photo-cd';                }
    elsif ($encoding =~ /png/i) {                                  $content_type = 'image/png';                       }
    elsif ($encoding =~ /aif|aiff/i) {                             $content_type = 'audio/x-aiff';                    }
    elsif ($encoding =~ /wav/i) {                                  $content_type = 'audio/x-wav';                     }
    elsif ($encoding =~ /mp2|mp3|mpa/i) {                          $content_type = 'audio/x-mpeg';                    }
    elsif ($encoding =~ /ra$|ram/i) {                              $content_type = 'audio/x-pn-realaudio';            }
    elsif ($encoding =~ /mpeg|mpg/i) {                             $content_type = 'video/mpeg';                      }
    elsif ($encoding =~ /mov|qt$/i) {                              $content_type = 'video/quicktime';                 }
    elsif ($encoding =~ /avi/i) {                                  $content_type = 'video/x-msvideo';                 }
    elsif ($encoding =~ /zip/i) {                                  $content_type = 'application/x-zip-compressed';    }
    elsif ($encoding =~ /tar/i) {                                  $content_type = 'application/x-tar';               }
    elsif ($encoding =~ /jar/i) {                                  $content_type = 'application/java-archive';        }
    elsif ($encoding =~ /exe|bin/i) {                              $content_type = 'application/octet-stream';        }
    elsif ($encoding =~ /ppt|pot|ppa|pps|pwz/i) {                  $content_type = 'application/vnd.ms-powerpoint';   }
    elsif ($encoding =~ /mdb|mda|mde/i) {                          $content_type = 'application/vnd.ms-access';       }
    elsif ($encoding =~ /xls|xlt|xlm|xld|xla|xlc|xlw|xll/i) {      $content_type = 'application/vnd.ms-excel';        }
    elsif ($encoding =~ /doc|dot/i) {                              $content_type = 'application/msword';              }
    elsif ($encoding =~ /rtf/i) {                                  $content_type = 'application/rtf';                 }
    elsif ($encoding =~ /pdf/i) {                                  $content_type = 'application/pdf';                 }
    elsif ($encoding =~ /tex/i) {                                  $content_type = 'application/x-tex';               }
    elsif ($encoding =~ /latex/i) {                                $content_type = 'application/x-latex';             }
    elsif ($encoding =~ /vcf/i) {                                  $content_type = 'application/x-vcard';             }
    else { $content_type = 'application/octet-stream';  }
  
  
  ############################
  ## Process the attachment ##
  ############################
    
    #####################################
    ## Generate and print MIME headers ##
    #####################################
    
    $y  = "$LTERM--$conf{'delimiter'}$LTERM";
    $y .= "Content-Type: $content_type;$LTERM";
    $y .= "        name=\"$filename_name\"$LTERM";
    $y .= "Content-Transfer-Encoding: base64$LTERM";
    $y .= "Content-Disposition: attachment; filename=\"$filename_name\"$LTERM";
    $y .= "$LTERM";
    print $SERVER $y;
    
    
    ###########################################################
    ## Convert the file to base64 and print it to the server ##
    ###########################################################
    
    open (FILETOATTACH, $filename) || do {
        printmsg("ERROR => Opening the file [$filename] for attachment failed with the error: $!", 0);
        return(1);
    };
    binmode(FILETOATTACH);                 ## Hack to make Win32 work
    
    my $res = "";
    my $tmp = "";
    my $base64 = "";
    while (<FILETOATTACH>) {               ## Read a line from the (binary) file
        $res .= $_;
        
        ###################################
        ## Convert binary data to base64 ##
        ###################################
        while ($res =~ s/(.{45})//s) {         ## Get 45 bytes from the binary string
            $tmp = substr(pack('u', $&), 1);   ## Convert the binary to uuencoded text
            chop($tmp);
            $tmp =~ tr|` -_|AA-Za-z0-9+/|;     ## Translate from uuencode to base64
            $base64 .= $tmp;
        }
        
        ################################
        ## Print chunks to the server ##
        ################################
        while ($base64 =~ s/(.{76})//s) {
            print $SERVER "$1$LTERM";
        }
      
    }
    
    ###################################
    ## Encode and send the leftovers ##
    ###################################
    my $padding = "";
    if ( ($res) and (length($res) >= 1) ) {
        $padding = (3 - length($res) % 3) % 3;  ## Set flag if binary data isn't divisible by 3
        $res = substr(pack('u', $res), 1);      ## Convert the binary to uuencoded text
        chop($res);
        $res =~ tr|` -_|AA-Za-z0-9+/|;          ## Translate from uuencode to base64
    }
    
    ############################
    ## Fix padding at the end ##
    ############################
    $res = $base64 . $res;                               ## Get left overs from above
    $res =~ s/.{$padding}$/'=' x $padding/e if $padding; ## Fix the end padding if flag (from above) is set
    if ($res) {
        while ($res =~ s/(.{1,76})//s) {                 ## Send it to the email server.
            print $SERVER "$1$LTERM";
        }
    }
    
    close (FILETOATTACH) || do {
        printmsg("ERROR - Closing the filehandle for file [$filename] failed with the error: $!", 0);
        return(2);
    };
    
    ## Return 0 errors
    return(0);

}









###############################################################################################
##  Function:    $string = get_hostname (boot $fqdn)
##  
##  Description: Tries really hard to returns the short (or FQDN) hostname of the current
##               system.  Uses techniques and code from the  Sys-Hostname module.
##  
##  Input:       $fqdn     A true value (1) will cause this function to return a FQDN hostname
##                         rather than a short hostname.
##  
##  Output:      Returns a string
###############################################################################################
sub get_hostname {
    ## Assign incoming parameters to variables
    my ( $fqdn ) = @_;
    my $hostname = "";
    
    ## STEP 1: Get short hostname
    
    ## Load Sys::Hostname if it's available
    eval { require Sys::Hostname; };
    unless ($@) {
        $hostname = Sys::Hostname::hostname(); 
    }
    
    ## If that didn't get us a hostname, try a few other things
    else {
        ## Windows systems
        if ($^O !~ /win/i) {
            if ($ENV{'COMPUTERNAME'}) { $hostname = $ENV{'COMPUTERNAME'}; }
            if (!$hostname) { $hostname = gethostbyname('localhost'); }
            if (!$hostname) { chomp($hostname = `hostname 2> NUL`) };
        }
        
        ## Unix systems
        else {
            local $ENV{PATH} = '/usr/bin:/bin:/usr/sbin:/sbin';  ## Paranoia
            
            ## Try the environment first (Help!  What other variables could/should I be checking here?)
            if ($ENV{'HOSTNAME'}) { $hostname = $ENV{'HOSTNAME'}; }
            
            ## Try the hostname command
            eval { local $SIG{__DIE__}; local $SIG{CHLD}; $hostname = `hostname 2>/dev/null`; chomp($hostname); } ||
            
            ## Try POSIX::uname(), which strictly can't be expected to be correct
            eval { local $SIG{__DIE__}; require POSIX; $hostname = (POSIX::uname())[1]; } ||
            
            ## Try the uname command
            eval { local $SIG{__DIE__}; $hostname = `uname -n 2>/dev/null`; chomp($hostname); };
            
        }
        
        ## If we can't find anything else, return ""
        if (!$hostname) {
            print "WARNING => No hostname could be determined, please specify one with -o fqdn=FQDN option!\n";
            return("unknown");
        }
    }
    
    ## Return the short hostname
    unless ($fqdn) {
        $hostname =~ s/\..*//;
        return(lc($hostname));
    }
    
    ## STEP 2: Determine the FQDN
    
    ## First, if we already have one return it.
    if ($hostname =~ /\w\.\w/) { return(lc($hostname)); }
    
    ## Next try using 
    eval { $fqdn = (gethostbyname($hostname))[0]; };
    if ($fqdn) { return(lc($fqdn)); }
    return(lc($hostname));
}








###############################################################################################
##  Function:    printmsg (string $message, int $level)
##
##  Description: Handles all messages - printing them to the screen only if the messages
##               $level is >= the global debug level.  If $conf{'logFile'} is defined it
##               will also log the message to that file.
##
##  Input:       $message          A message to be printed, logged, etc.
##               $level            The debug level of the message. If
##                                 not defined 0 will be assumed.  0 is
##                                 considered a normal message, 1 and 
##                                 higher is considered a debug message.
##  
##  Output:      Prints to STDOUT
##
##  Assumptions: $conf{'hostname'} should be the name of the computer we're running on.
##               $conf{'stdout'} should be set to 1 if you want to print to stdout
##               $conf{'logFile'} should be a full path to a log file if you want that
##               $conf{'debug'} should be an integer between 0 and 10.
##
##  Example:     printmsg("WARNING: We believe in generic error messages... NOT!", 0);
###############################################################################################
sub printmsg {
    ## Assign incoming parameters to variables
    my ( $message, $level ) = @_;
    
    ## Make sure input is sane
    $level = 0 if (!defined($level));
    $message =~ s/\s+$//sgo;
    $message =~ s/\r?\n/, /sgo;
    
    ## Continue only if the debug level of the program is >= message debug level.
    if ($conf{'debug'} >= $level) {
        
        ## Get the date in the format: Dec  3 11:14:04
        my ($sec, $min, $hour, $mday, $mon) = localtime();
        $mon = ('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec')[$mon];
        my $date = sprintf("%s %02d %02d:%02d:%02d", $mon, $mday, $hour, $min, $sec);
        
        ## Print to STDOUT always if debugging is enabled, or if conf{stdout} is true.
        if ( ($conf{'debug'} >= 1) or ($conf{'stdout'} == 1) ) {
            print "$date $conf{'hostname'} $conf{'programName'}\[$$\]: $message\n";
        }
        
        ## Print to the log file if $conf{'logging'} is true
        if ($conf{'logFile'}) {
            if (openLogFile($conf{'logFile'})) { $conf{'logFile'} = ""; printmsg("ERROR => Opening the file [$conf{'logFile'}] for appending returned the error: $!", 1); }
            print LOGFILE "$date $conf{'hostname'} $conf{'programName'}\[$$\]: $message\n";
        }
        
    }
    
    ## Return 0 errors
    return(0);
}












###############################################################################################
## FUNCTION:
##   openLogFile ( $filename )
## 
## 
## DESCRIPTION: 
##   Opens the file $filename and attaches it to the filehandle "LOGFILE".  Returns 0 on success
##   and non-zero on failure.  Error codes are listed below, and the error message gets set in
##   global variable $!.
##   
##   
## Example:
##   openFile ("/var/log/sendEmail.log");
##
###############################################################################################
sub openLogFile {
    ## Get the incoming filename
    my $filename = $_[0];
    
    ## Make sure our file exists, and if the file doesn't exist then create it
    if ( ! -f $filename ) {
        print STDERR "NOTICE: The log file [$filename] does not exist.  Creating it now with mode [0600].\n" if ($conf{'stdout'});
        open (LOGFILE, ">>$filename");
        close LOGFILE;
        chmod (0600, $filename);
    }
    
    ## Now open the file and attach it to a filehandle
    open (LOGFILE,">>$filename") or return (1);
    
    ## Put the file into non-buffering mode
    select LOGFILE;
    $| = 1;
    select STDOUT;
    
    ## Return success
    return(0);
}








###############################################################################################
##  Function:    read_file (string $filename)
##  
##  Description: Reads the contents of a file and returns a two part array:
##               ($status, $file-contents)
##               $status is 0 on success, non-zero on error.
##               
##  Example:     ($status, $file) = read_file("/etc/passwd");
###############################################################################################
sub read_file {
    my ( $filename ) = @_;
    
    ## If the value specified is a file, load the file's contents
    if ( (-e $filename and -r $filename) ) {
        my $FILE;
        if(!open($FILE, ' ' . $filename)) {
            return((1, ""));
        }
        my $file = '';
        while (<$FILE>) {
            $file .= $_;
        }
        ## Strip an ending \r\n
        $file =~ s/\r?\n$//os;
    }
    return((1, ""));
}









###############################################################################################
##  Function:    quit (string $message, int $errorLevel)
##  
##  Description: Exits the program, optionally printing $message.  It 
##               returns an exit error level of $errorLevel to the 
##               system  (0 means no errors, and is assumed if empty.)
##
##  Example:     quit("Exiting program normally", 0);
###############################################################################################
sub quit {
    my ( $message, $errorLevel ) = @_;
    $errorLevel = 0 if (!defined($errorLevel));
    
    ## Print exit message
    if ($message) { 
        printmsg($message, 0);
    }
    
    ## Exit
    exit($errorLevel);
}












###############################################################################################
## Function:    help ()
##
## Description: For all those newbies ;)
##              Prints a help message and exits the program.
##
###############################################################################################
sub help {
exit(1) if (!$conf{'stdout'});
print <<EOM;

${colorBold}$conf{'programName'}-$conf{'version'} by $conf{'authorName'} <$conf{'authorEmail'}>${colorNoBold}

Synopsis:  $conf{'programName'} -f ADDRESS [options]

  ${colorRed}Required:${colorNormal}
    -f ADDRESS                from (sender) email address
    * At least one recipient required via -t, -cc, or -bcc
    * Message body required via -m, STDIN, or -o message-file=FILE

  ${colorGreen}Common:${colorNormal}
    -t ADDRESS [ADDR ...]     to email address(es)
    -u SUBJECT                message subject
    -m MESSAGE                message body
    -s SERVER[:PORT]          smtp mail relay, default is $conf{'server'}:$conf{'port'}
    -S [SENDMAIL_PATH]        use local sendmail utility (default: $conf{'sendmail'}) instead of network MTA

  ${colorGreen}Optional:${colorNormal}
    -a   FILE [FILE ...]      file attachment(s)
    -cc  ADDRESS [ADDR ...]   cc  email address(es)
    -bcc ADDRESS [ADDR ...]   bcc email address(es)
    -xu  USERNAME             username for SMTP authentication
    -xp  PASSWORD             password for SMTP authentication

  ${colorGreen}Paranormal:${colorNormal}
    -b BINDADDR[:PORT]        local host bind address
    -l LOGFILE                log to the specified file
    -v                        verbosity, use multiple times for greater effect
    -q                        be quiet (i.e. no STDOUT output)
    -o NAME=VALUE             advanced options, for details try: --help misc
        -o message-content-type=<auto|text|html>
        -o message-file=FILE         -o message-format=raw
        -o message-header=HEADER     -o message-charset=CHARSET
        -o reply-to=ADDRESS          -o timeout=SECONDS
        -o username=USERNAME         -o password=PASSWORD
        -o tls=<auto|yes|no>         -o fqdn=FQDN


  ${colorGreen}Help:${colorNormal}
    --help                    the helpful overview you're reading now
    --help addressing         explain addressing and related options
    --help message            explain message body input and related options
    --help networking         explain -s, -b, etc
    --help output             explain logging and other output options
    --help misc               explain -o options, TLS, SMTP auth, and more

EOM
exit(1);
}









###############################################################################################
## Function:    helpTopic ($topic)
##
## Description: For all those newbies ;) 
##              Prints a help message and exits the program.
## 
###############################################################################################
sub helpTopic {
    exit(1) if (!$conf{'stdout'});
    my ($topic) = @_;

    CASE: {




## ADDRESSING
        ($topic eq 'addressing') && do {
            print <<EOM;

${colorBold}ADDRESSING DOCUMENTATION${colorNormal}

${colorGreen}Addressing Options${colorNormal}
Options related to addressing:
    -f   ADDRESS
    -t   ADDRESS [ADDRESS ...]
    -cc  ADDRESS [ADDRESS ...]
    -bcc ADDRESS [ADDRESS ...]
    -o   reply-to=ADDRESS
    
-f ADDRESS
    This required option specifies who the email is from, I.E. the sender's
    email address.
    
-t ADDRESS [ADDRESS ...]
    This option specifies the primary recipient(s).  At least one recipient
    address must be specified via the -t, -cc. or -bcc options.

-cc ADDRESS [ADDRESS ...]
    This option specifies the "carbon copy" recipient(s).  At least one 
    recipient address must be specified via the -t, -cc. or -bcc options.

-bcc ADDRESS [ADDRESS ...]
    This option specifies the "blind carbon copy" recipient(s).  At least
    one recipient address must be specified via the -t, -cc. or -bcc options.

-o reply-to=ADDRESS
    This option specifies that an optional "Reply-To" address should be
    written in the email's headers.
    

${colorGreen}Email Address Syntax${colorNormal}
Email addresses may be specified in one of two ways:
    Full Name:     "John Doe <john.doe\@gmail.com>"
    Just Address:  "john.doe\@gmail.com"

The "Full Name" method is useful if you want a name, rather than a plain
email address, to be displayed in the recipient's From, To, or Cc fields
when they view the message.
    

${colorGreen}Multiple Recipients${colorNormal}
The -t, -cc, and -bcc options each accept multiple addresses.  They may be
specified by separating them by either a white space, comma, or semi-colon
separated list.  You may also specify the -t, -cc, and -bcc options multiple
times, each occurance will append the new recipients to the respective list.

Examples:
(I used "-t" in these examples, but it can be "-cc" or "-bcc" as well)

  * Space separated list:
    -t jane.doe\@yahoo.com "John Doe <john.doe\@gmail.com>"
    
  * Semi-colon separated list:
    -t "jane.doe\@yahoo.com; John Doe <john.doe\@gmail.com>"
 
  * Comma separated list:
    -t "jane.doe\@yahoo.com, John Doe <john.doe\@gmail.com>"
  
  * Multiple -t, -cc, or -bcc options:
    -t "jane.doe\@yahoo.com" -t "John Doe <john.doe\@gmail.com>"
  

EOM
            last CASE;
        };






## MESSAGE
        ($topic eq 'message') && do {
            print <<EOM;

${colorBold}MESSAGE DOCUMENTATION${colorNormal}

${colorGreen}Message Options${colorNormal}
Options related to the email message body:
    -u  SUBJECT
    -m  MESSAGE
    -o  message-file=FILE
    -o  message-content-type=<auto|text|html>
    -o  message-header=EMAIL HEADER
    -o  message-charset=CHARSET
    -o  message-format=raw
    
-u SUBJECT
    This option allows you to specify the subject for your email message.
    It is not required (anymore) that the subject be quoted, although it 
    is recommended.  The subject will be read until an argument starting
    with a hyphen (-) is found.  
    Examples:
      -u "Contact information while on vacation"
      -u New Microsoft vulnerability discovered

-m MESSAGE
    This option is one of three methods that allow you to specify the message
    body for your email.  The message may be specified on the command line
    with this -m option, read from a file with the -o message-file=FILE
    option, or read from STDIN if neither of these options are present.
    
    It is not required (anymore) that the message be quoted, although it is
    recommended.  The message will be read until an argument starting with a
    hyphen (-) is found.
    Examples:
      -m "See you in South Beach, Hawaii.  -Todd"
      -m Please ensure that you upgrade your systems right away
    
    Multi-line message bodies may be specified with the -m option by putting
    a "\\n" into the message.  Example:
      -m "This is line 1.\\nAnd this is line 2."
    
    HTML messages are supported, simply begin your message with "<html>" and
    sendEmail will properly label the mime header so MUAs properly render
    the message.  It is currently not possible without "-o message-format=raw"
    to send a message with both text and html parts with sendEmail.

-o message-file=FILE
    This option is one of three methods that allow you to specify the message
    body for your email.  To use this option simply specify a text file
    containing the body of your email message. Examples:
      -o message-file=/root/message.txt
      -o message-file="C:\\Program Files\\output.txt"

-o message-content-type=<auto|text|html>
    This option allows you to specify the content-type of the email. If your
    email message is an html message but is being displayed as a text message
    just add "-o message-content-type=html" to the command line to force it
    to display as an html message. This actually just changes the Content-Type:
    header. Advanced users will be happy to know that if you specify anything
    other than the three options listed above it will use that as the vaule
    for the Content-Type header.

-o message-header=EMAIL HEADER
    This option allows you to specify additional email headers to be included.
    To add more than one message header simply use this option on the command
    line more than once.  If you specify a message header that sendEmail would
    normally generate the one you specified will be used in it's place.
    Do not use this unless you know what you are doing!
    Example:
      To scare a Microsoft Outlook user you may want to try this:
      -o message-header="X-Message-Flag: Message contains illegal content"
    Example:
      To request a read-receipt try this:
      -o message-header="Disposition-Notification-To: <user\@domain.com>"
    Example:
      To set the message priority try this:
      -o message-header="X-Priority: 1"
      Priority reference: 1=highest, 2=high, 3=normal, 4=low, 5=lowest

-o message-charset=CHARSET
    This option allows you to specify the character-set for the message body.
    The default is iso-8859-1.

-o message-format=raw
    This option instructs sendEmail to assume the message (specified with -m,
    read from STDIN, or read from the file specified in -o message-file=FILE)
    is already a *complete* email message.  SendEmail will not generate any
    headers and will transmit the message as-is to the remote SMTP server.
    Due to the nature of this option the following command line options will
    be ignored when this one is used:
      -u SUBJECT
      -o message-header=EMAIL HEADER
      -o message-charset=CHARSET
      -a ATTACHMENT
      

${colorGreen}The Message Body${colorNormal}
The email message body may be specified in one of three ways:
 1) Via the -m MESSAGE command line option.
    Example:
      -m "This is the message body"
      
 2) By putting the message body in a file and using the -o message-file=FILE
    command line option.
    Example:
      -o message-file=/root/message.txt
      
 3) By piping the message body to sendEmail when nither of the above command
    line options were specified.
    Example:
      grep "ERROR" /var/log/messages | sendEmail -t you\@domain.com ...

If the message body begins with "<html>" then the message will be treated as
an HTML message and the MIME headers will be written so that a HTML capable
email client will display the message in it's HTML form.
Any of the above methods may be used with the -o message-format=raw option 
to deliver an already complete email message.


EOM
            last CASE;
        };






## MISC
        ($topic eq 'misc') && do {
            print <<EOM;

${colorBold}MISC DOCUMENTATION${colorNormal}

${colorGreen}Misc Options${colorNormal}
Options that don't fit anywhere else:
    -a   ATTACHMENT [ATTACHMENT ...]
    -xu  USERNAME
    -xp  PASSWORD
    -o   username=USERNAME
    -o   password=PASSWORD
    -o   tls=<auto|yes|no>
    -o   timeout=SECONDS
    -o   fqdn=FQDN

-a   ATTACHMENT [ATTACHMENT ...]
    This option allows you to attach any number of files to your email message.
    To specify more than one attachment, simply separate each filename with a
    space.  Example: -a file1.txt file2.txt file3.txt

-xu  USERNAME
    Alias for -o username=USERNAME

-xp  PASSWORD
    Alias for -o password=PASSWORD

-o   username=USERNAME (synonym for -xu)
    These options allow specification of a username to be used with SMTP
    servers that require authentication.  If a username is specified but a
    password is not, you will be prompted to enter one at runtime.

-o   password=PASSWORD (synonym for -xp)
    These options allow specification of a password to be used with SMTP
    servers that require authentication.  If a username is specified but a
    password is not, you will be prompted to enter one at runtime. 

-o   tls=<auto|yes|no>
    This option allows you to specify if TLS (SSL for SMTP) should be enabled
    or disabled.  The default, auto, will use TLS automatically if your perl
    installation has the IO::Socket::SSL and Net::SSLeay modules available,
    and if the remote SMTP server supports TLS.  To require TLS for message
    delivery set this to yes.  To disable TLS support set this to no.  A debug
    level of one or higher will reveal details about the status of TLS.

-o   timeout=SECONDS
    This option sets the timeout value in seconds used for all network reads,
    writes, and a few other things.

-o   fqdn=FQDN
    This option sets the Fully Qualified Domain Name used during the initial
    SMTP greeting.  Normally this is automatically detected, but in case you
    need to manually set it for some reason or get a warning about detection
    failing, you can use this to override the default.


EOM
            last CASE;
        };






## NETWORKING
        ($topic eq 'networking') && do {
            print <<EOM;

${colorBold}NETWORKING DOCUMENTATION${colorNormal}

${colorGreen}Networking Options${colorNormal}
Options related to networking:
    -s   SERVER[:PORT]
    -b   BINDADDR[:PORT]
    -o   tls=<auto|yes|no>
    -o   timeout=SECONDS

-s SERVER[:PORT]
    This option allows you to specify the SMTP server sendEmail should
    connect to to deliver your email message to.  If this option is not
    specified sendEmail will try to connect to localhost:25 to deliver
    the message.  THIS IS MOST LIKELY NOT WHAT YOU WANT, AND WILL LIKELY
    FAIL unless you have a email server (commonly known as an MTA) running
    on your computer!
    Typically you will need to specify your company or ISP's email server.
    For example, if you use CableOne you will need to specify:
       -s mail.cableone.net
    If you have your own email server running on port 300 you would
    probably use an option like this:
       -s myserver.mydomain.com:300
    If you're a GMail user try:
       -s smtp.gmail.com:587 -xu me\@gmail.com -xp PASSWD

-b BINDADDR[:PORT]
    This option allows you to specify the local IP address (and optional
    tcp port number) for sendEmail to bind to when connecting to the remote
    SMTP server.  This useful for people who need to send an email from a
    specific network interface or source address and are running sendEmail on
    a firewall or other host with several network interfaces.

-o   tls=<auto|yes|no>
    This option allows you to specify if TLS (SSL for SMTP) should be enabled
    or disabled.  The default, auto, will use TLS automatically if your perl
    installation has the IO::Socket::SSL and Net::SSLeay modules available,
    and if the remote SMTP server supports TLS.  To require TLS for message
    delivery set this to yes.  To disable TLS support set this to no.  A debug
    level of one or higher will reveal details about the status of TLS.

-o timeout=SECONDS
    This option sets the timeout value in seconds used for all network reads,
    writes, and a few other things.

    
EOM
            last CASE;
        };






## OUTPUT
        ($topic eq 'output') && do {
            print <<EOM;

${colorBold}OUTPUT DOCUMENTATION${colorNormal}

${colorGreen}Output Options${colorNormal}
Options related to output:
    -l LOGFILE
    -v
    -q

-l LOGFILE
    This option allows you to specify a log file to append to.  Every message
    that is displayed to STDOUT is also written to the log file.  This may be
    used in conjunction with -q and -v.

-q
    This option tells sendEmail to disable printing to STDOUT.  In other
    words nothing will be printed to the console.  This does not affect the
    behavior of the -l or -v options.

-v
    This option allows you to increase the debug level of sendEmail.  You may
    either use this option more than once, or specify more than one v at a
    time to obtain a debug level higher than one.  Examples:
        Specifies a debug level of 1:  -v
        Specifies a debug level of 2:  -vv
        Specifies a debug level of 2:  -v -v
    A debug level of one is recommended when doing any sort of debugging.  
    At that level you will see the entire SMTP transaction (except the
    body of the email message), and hints will be displayed for most
    warnings and errors.  The highest debug level is three.


EOM
            last CASE;
        };

        ## Unknown option selected!
        quit("ERROR => The help topic specified is not valid!", 1);
    };

exit(1);
}






















#############################
##                          ##
##      MAIN PROGRAM         ##
##                          ##
#############################


## Initialize
initialize();

## Process Command Line
processCommandLine();
$conf{'alarm'} = $opt{'timeout'};

## Abort program after $conf{'alarm'} seconds to avoid infinite hangs
alarm($conf{'alarm'}) if ($^O !~ /win/i);  ## alarm() doesn't work in win32




###################################################
##  Read $message from STDIN if -m was not used  ##
###################################################

if (!($message)) {
    ## Read message body from a file specified with -o message-file=
    if ($opt{'message-file'}) {
        if (! -e $opt{'message-file'}) {
            printmsg("ERROR => Message body file specified [$opt{'message-file'}] does not exist!", 0);
            printmsg("HINT => 1) check spelling of your file; 2) fully qualify the path; 3) doubble quote it", 1);
            quit("", 1);
        }
        if (! -r $opt{'message-file'}) {
            printmsg("ERROR => Message body file specified can not be read due to restricted permissions!", 0);
            printmsg("HINT => Check permissions on file specified to ensure it can be read", 1);
            quit("", 1);
        }
        if (!open(MFILE, "< " . $opt{'message-file'})) {
            printmsg("ERROR => Error opening message body file [$opt{'message-file'}]: $!", 0);
            quit("", 1);
        }
        while (<MFILE>) {
            $message .= $_;
        }
        close(MFILE);
    }
    
    ## Read message body from STDIN
    else {
        alarm($conf{'alarm'}) if ($^O !~ /win/i);  ## alarm() doesn't work in win32
        if ($conf{'stdout'}) {
            print "Reading message body from STDIN because the '-m' option was not used.\n";
            print "If you are manually typing in a message:\n";
            print "  - First line must be received within $conf{'alarm'} seconds.\n" if ($^O !~ /win/i);
            print "  - End manual input with a CTRL-D on its own line.\n\n" if ($^O !~ /win/i);
            print "  - End manual input with a CTRL-Z on its own line.\n\n" if ($^O =~ /win/i);
        }
        while (<STDIN>) {                 ## Read STDIN into $message
            $message .= $_;
            alarm(0) if ($^O !~ /win/i);  ## Disable the alarm since at least one line was received
        }
        printmsg("Message input complete.", 0);
    }
}

## Replace bare LF's with LTERM's (\012 should always have \015 with it)
$message =~ s/(\015)?(\012|$)/$LTERM/g;

## Replace bare CR's with LTERM's (\015 should always have \012 with it)
$message =~ s/(\015)(\012|$)?/$LTERM/g;

## Check message for bare periods and encode them
$message =~ s/(^|$LTERM)(\.{1})($LTERM|$)/$1.$2$3/g;

## Get the current date for the email header
my ($sec,$min,$hour,$mday,$mon,$year,$day) = gmtime();
$year += 1900; $mon = return_month($mon); $day = return_day($day);
my $date = sprintf("%s, %s %s %d %.2d:%.2d:%.2d %s",$day, $mday, $mon, $year, $hour, $min, $sec, $conf{'timezone'});


if( $conf{'use_sendmail'} ) {
    open ($SERVER, "| $conf{'sendmail'} -bm -t")
            || die "ERROR => Can't run $conf{'sendmail'}: $!";
} else {
    ##################################
    ##  Connect to the SMTP server  ##
    ##################################
    printmsg("DEBUG => Connecting to $conf{'server'}:$conf{'port'}", 1);
    $SIG{'ALRM'} = sub { 
        printmsg("ERROR => Timeout while connecting to $conf{'server'}:$conf{'port'}  There was no response after $conf{'alarm'} seconds.", 0); 
        printmsg("HINT => Try specifying a different mail relay with the -s option.", 1);
        quit("", 1);
    };
    alarm($conf{'alarm'}) if ($^O !~ /win/i);  ## alarm() doesn't work in win32;
    $SERVER = IO::Socket::INET6->new( PeerAddr  => $conf{'server'},
        PeerPort  => $conf{'port'},
        LocalAddr => $conf{'bindaddr'},
        Proto     => 'tcp',
        Autoflush => 1,
        timeout   => $conf{'alarm'},
    );
    alarm(0) if ($^O !~ /win/i);  ## alarm() doesn't work in win32;

    ## Make sure we got connected
    if ( (!$SERVER) or (!$SERVER->opened()) ) {
        printmsg("ERROR => Connection attempt to $conf{'server'}:$conf{'port'} failed: $@", 0);
        printmsg("HINT => Try specifying a different mail relay with the -s option.", 1);
        quit("", 1);
    }

    ## Save our IP address for later
    $conf{'ip'} = $SERVER->sockhost();
    printmsg("DEBUG => My IP address is: $conf{'ip'}", 1);







    #########################
    ##  Do the SMTP Dance  ##
    #########################

    ## Read initial greeting to make sure we're talking to a live SMTP server
    if (SMTPchat()) { quit($conf{'error'}, 1); }

    ## We're about to use $opt{'fqdn'}, make sure it isn't empty
    if (!$opt{'fqdn'}) {
        ## Ok, that means we couldn't get a hostname, how about using the IP address for the HELO instead
        $opt{'fqdn'} = "[" . $conf{'ip'} . "]";
    }

    ## EHLO
    if (SMTPchat('EHLO ' . $opt{'fqdn'}))   {
        printmsg($conf{'error'}, 0);
        printmsg("NOTICE => EHLO command failed, attempting HELO instead");
        if (SMTPchat('HELO ' . $opt{'fqdn'})) { quit($conf{'error'}, 1); }
        if ( $opt{'username'} and $opt{'password'} ) {
            printmsg("WARNING => The mail server does not support SMTP authentication!", 0);
        }
    }
    else {
        
        ## Determine if the server supports TLS
        if ($conf{'SMTPchat_response'} =~ /STARTTLS/) {
            $conf{'tls_server'} = 1;
            printmsg("DEBUG => The remote SMTP server supports TLS :)", 2);
        }
        else {
            $conf{'tls_server'} = 0;
            printmsg("DEBUG => The remote SMTP server does NOT support TLS :(", 2);
        }
        
        ## Start TLS if possible
        if ($conf{'tls_server'} == 1 and $conf{'tls_client'} == 1 and $opt{'tls'} =~ /^(yes|auto)$/) {
            printmsg("DEBUG => Starting TLS", 2);
            if (SMTPchat('STARTTLS')) { quit($conf{'error'}, 1); }
            if (! IO::Socket::SSL->start_SSL($SERVER, SSL_version => 'SSLv23:!SSLv2')) {
                quit("ERROR => TLS setup failed: " . IO::Socket::SSL::errstr(), 1);
            }
            printmsg("DEBUG => TLS: Using cipher: ". $SERVER->get_cipher(), 3);
            printmsg("DEBUG => TLS session initialized :)", 1);
            
            ## Restart our SMTP session
            if (SMTPchat('EHLO ' . $opt{'fqdn'})) { quit($conf{'error'}, 1); }
        }
        elsif ($opt{'tls'} eq 'yes' and $conf{'tls_server'} == 0) {
            quit("ERROR => TLS not possible! Remote SMTP server, $conf{'server'},  does not support it.", 1);
        }
        
        
        ## Do SMTP Auth if required
        if ( $opt{'username'} and $opt{'password'} ) {
            if ($conf{'SMTPchat_response'} !~ /AUTH\s/) {
                printmsg("NOTICE => Authentication not supported by the remote SMTP server!", 0);
            }
            else {
                my $auth_succeeded = 0;
                my $mutual_method = 0;
                
                # ## SASL CRAM-MD5 authentication method
                # if ($conf{'SMTPchat_response'} =~ /\bCRAM-MD5\b/i) {
                #     printmsg("DEBUG => SMTP-AUTH: Using CRAM-MD5 authentication method", 1);
                #     if (SMTPchat('AUTH CRAM-MD5')) { quit($conf{'error'}, 1); }
                #     
                #     ## FIXME!!
                #     
                #     printmsg("DEBUG => User authentication was successful", 1);
                # }
                
                ## SASL LOGIN authentication method
                if ($auth_succeeded == 0 and $conf{'SMTPchat_response'} =~ /\bLOGIN\b/i) {
                    $mutual_method = 1;
                    printmsg("DEBUG => SMTP-AUTH: Using LOGIN authentication method", 1);
                    if (!SMTPchat('AUTH LOGIN')) {
                        if (!SMTPchat(base64_encode($opt{'username'}))) {
                            if (!SMTPchat(base64_encode($opt{'password'}))) {
                                $auth_succeeded = 1;
                                printmsg("DEBUG => User authentication was successful (Method: LOGIN)", 1);
                            }
                        }
                    }
                    if ($auth_succeeded == 0) {
                        printmsg("DEBUG => SMTP-AUTH: LOGIN authenticaion failed.", 1);
                    }
                }
                
                ## SASL PLAIN authentication method
                if ($auth_succeeded == 0 and $conf{'SMTPchat_response'} =~ /\bPLAIN\b/i) {
                    $mutual_method = 1;
                    printmsg("DEBUG => SMTP-AUTH: Using PLAIN authentication method", 1);
                    if (SMTPchat('AUTH PLAIN ' . base64_encode("$opt{'username'}\0$opt{'username'}\0$opt{'password'}"))) {
                        printmsg("DEBUG => SMTP-AUTH: PLAIN authenticaion failed.", 1);
                    }
                    else {
                        $auth_succeeded = 1;
                        printmsg("DEBUG => User authentication was successful (Method: PLAIN)", 1);
                    }
                }
                
                ## If none of the authentication methods supported by sendEmail were supported by the server, let the user know
                if ($mutual_method == 0) {
                    printmsg("WARNING => SMTP-AUTH: No mutually supported authentication methods available", 0);
                }
                
                ## If we didn't get authenticated, log an error message and exit
                if ($auth_succeeded == 0) {
                    quit("ERROR => ERROR => SMTP-AUTH: Authentication to $conf{'server'}:$conf{'port'} failed.", 1);
                }
            }
        }
    }

    ## MAIL FROM
    if (SMTPchat('MAIL FROM:<' .(returnAddressParts($from))[1]. '>')) { quit($conf{'error'}, 1); }

    ## RCPT TO
    my $oneRcptAccepted = 0;
    foreach my $rcpt (@to, @cc, @bcc) {
        my ($name, $address) = returnAddressParts($rcpt);
        if (SMTPchat('RCPT TO:<' . $address . '>')) {
            printmsg("WARNING => The recipient <$address> was rejected by the mail server, error follows:", 0);
            $conf{'error'} =~ s/^ERROR/WARNING/o;
            printmsg($conf{'error'}, 0);
        }
        elsif ($oneRcptAccepted == 0) {
            $oneRcptAccepted = 1;
        }
    }
    ## If no recipients were accepted we need to exit with an error.
    if ($oneRcptAccepted == 0) {
        quit("ERROR => Exiting. No recipients were accepted for delivery by the mail server.", 1);
    }

    ## DATA
    if (SMTPchat('DATA')) { quit($conf{'error'}, 1); }
}


###############################
##  Build and send the body  ##
###############################
printmsg("INFO => Sending message body",1);

## If the message-format is raw just send the message as-is.
if ($opt{'message-format'} =~ /^raw$/i) {
    print $SERVER $message;
}

## If the message-format isn't raw, then build and send the message,
else {
    
    ## Message-ID: <MessageID>
    if ($opt{'message-header'} !~ /^Message-ID:/iom) {
        $header .= 'Message-ID: <' . $conf{'Message-ID'} . '@' . $conf{'hostname'} . '>' . $LTERM;
    }
    
    ## From: "Name" <address@domain.com> (the pointless test below is just to keep scoping correct)
    if ($from and $opt{'message-header'} !~ /^From:/iom) {
        my ($name, $address) = returnAddressParts($from);
        $header .= 'From: "' . $name . '" <' . $address . '>' . $LTERM;
    }
    
    ## Reply-To: 
    if ($opt{'reply-to'} and $opt{'message-header'} !~ /^Reply-To:/iom) {
        my ($name, $address) = returnAddressParts($opt{'reply-to'});
        $header .= 'Reply-To: "' . $name . '" <' . $address . '>' . $LTERM;
    }
    
    ## To: "Name" <address@domain.com>
    if ($opt{'message-header'} =~ /^To:/iom) {
        ## The user put the To: header in via -o message-header - dont do anything
    }
    elsif (scalar(@to) > 0) {
        $header .= "To:";
        for (my $a = 0; $a < scalar(@to); $a++) {
            my $msg = "";
            
            my ($name, $address) = returnAddressParts($to[$a]);
            $msg = " \"$name\" <$address>";
            
            ## If we're not on the last address add a comma to the end of the line.
            if (($a + 1) != scalar(@to)) {
                $msg .= ",";
            }
            
            $header .= $msg . $LTERM;
        }
    }
    ## We always want a To: line so if the only recipients were bcc'd they don't see who it was sent to
    else {
        $header .= "To: \"Undisclosed Recipients\" <>$LTERM";
    }
    
    if (scalar(@cc) > 0 and $opt{'message-header'} !~ /^Cc:/iom) {
        $header .= "Cc:";
        for (my $a = 0; $a < scalar(@cc); $a++) {
            my $msg = "";
            
            my ($name, $address) = returnAddressParts($cc[$a]);
            $msg = " \"$name\" <$address>";
            
            ## If we're not on the last address add a comma to the end of the line.
            if (($a + 1) != scalar(@cc)) {
                $msg .= ",";
            }
            
            $header .= $msg . $LTERM;
        }
    }
    
    if ($opt{'message-header'} !~ /^Subject:/iom) {
        $header .= 'Subject: ' . $subject . $LTERM;                   ## Subject
    }
    if ($opt{'message-header'} !~ /^Date:/iom) {
        $header .= 'Date: ' . $date . $LTERM;                         ## Date
    }
    if ($opt{'message-header'} !~ /^X-Mailer:/iom) {
        $header .= 'X-Mailer: sendEmail-'.$conf{'version'}.$LTERM;    ## X-Mailer
    }
    ## I wonder if I should put this in by default?
    # if ($opt{'message-header'} !~ /^X-Originating-IP:/iom) {
    #     $header .= 'X-Originating-IP: ['.$conf{'ip'}.']'.$LTERM;      ## X-Originating-IP
    # }
    
    ## Encode all messages with MIME.
    if ($opt{'message-header'} !~ /^MIME-Version:/iom) {
        $header .=  "MIME-Version: 1.0$LTERM";
    }
    if ($opt{'message-header'} !~ /^Content-Type:/iom) {
        my $content_type = 'multipart/mixed';
        if (scalar(@attachments) == 0) { $content_type = 'multipart/related'; }
        $header .= "Content-Type: $content_type; boundary=\"$conf{'delimiter'}\"$LTERM";
    }
    
    ## Send additional message header line(s) if specified
    if ($opt{'message-header'}) {
        $header .= $opt{'message-header'};
    }
    
    ## Send the message header to the server
    print $SERVER $header . $LTERM;
    
    ## Start sending the message body to the server
    print $SERVER "This is a multi-part message in MIME format. To properly display this message you need a MIME-Version 1.0 compliant Email program.$LTERM";
    print $SERVER "$LTERM";
    
    
    ## Send message body
    print $SERVER "--$conf{'delimiter'}$LTERM";
    ## Send a message content-type header:
    ## If the message contains HTML...
    if ($opt{'message-content-type'} eq 'html' or ($opt{'message-content-type'} eq 'auto' and $message =~ /^\s*(<HTML|<!DOCTYPE)/i) ) {
        printmsg("Setting content-type: text/html", 1);
        print $SERVER "Content-Type: text/html;$LTERM";
    }
    ## Otherwise assume it's plain text...
    elsif ($opt{'message-content-type'} eq 'text' or $opt{'message-content-type'} eq 'auto') {
        printmsg("Setting content-type: text/plain", 1);
        print $SERVER "Content-Type: text/plain;$LTERM";
    }
    ## If they've specified their own content-type string...
    else {
        printmsg("Setting custom content-type: ".$opt{'message-content-type'}, 1);
        print $SERVER "Content-Type: ".$opt{'message-content-type'}.";$LTERM";
    }
    print $SERVER "        charset=\"" . $opt{'message-charset'} . "\"$LTERM";
    print $SERVER "Content-Transfer-Encoding: 7bit$LTERM";
    print $SERVER $LTERM . $message;
    
    
    
    ## Send Attachemnts
    if (scalar(@attachments) > 0) {
        ## Disable the alarm so people on modems can send big attachments
        alarm(0) if ($^O !~ /win/i);  ## alarm() doesn't work in win32
        
        ## Send the attachments
        foreach my $filename (@attachments) {
            ## This is check 2, we already checked this above, but just in case...
            if ( ! -f $filename ) {
                printmsg("ERROR => The file [$filename] doesn't exist!  Email will be sent, but without that attachment.", 0);
            }
            elsif ( ! -r $filename ) {
                printmsg("ERROR => Couldn't open the file [$filename] for reading: $!   Email will be sent, but without that attachment.", 0);
            }
            else {
                printmsg("DEBUG => Sending the attachment [$filename]", 1);
                send_attachment($filename);
            }
        }
    }
    
    
    ## End the mime encoded message
    print $SERVER "$LTERM--$conf{'delimiter'}--$LTERM";
}

if ( !$conf{'use_sendmail'} ) {
## Tell the server we are done sending the email
    print $SERVER "$CRLF.$CRLF";
    if (SMTPchat()) { quit($conf{'error'}, 1); }


####################
#  We are done!!!  #
####################

## Disconnect from the server (don't SMTPchat(), it breaks when using TLS)
    print $SERVER "QUIT$CRLF";
    close $SERVER;
}





#######################################
##  Generate exit message/log entry  ##
#######################################

if ($conf{'debug'} or $conf{'logging'}) {
    printmsg("Generating a detailed exit message", 3);
    
    ## Put the message together
    my $output = "Email was sent successfully!  From: <" . (returnAddressParts($from))[1] . "> ";
    
    if (scalar(@to) > 0) {
        $output .= "To: ";
        for ($a = 0; $a < scalar(@to); $a++) {
            $output .= "<" . (returnAddressParts($to[$a]))[1] . "> ";
        }
    }
    if (scalar(@cc) > 0) {
        $output .= "Cc: ";
        for ($a = 0; $a < scalar(@cc); $a++) {
            $output .= "<" . (returnAddressParts($cc[$a]))[1] . "> ";
        }
    }
    if (scalar(@bcc) > 0) {
        $output .= "Bcc: ";
        for ($a = 0; $a < scalar(@bcc); $a++) {
            $output .= "<" . (returnAddressParts($bcc[$a]))[1] . "> ";
        }
    }
    $output .= "Subject: [$subject] " if ($subject);
    if (scalar(@attachments_names) > 0) { 
        $output .= "Attachment(s): ";
        foreach(@attachments_names) {
            $output .= "[$_] ";
        }
    }
    $output .= "Server: [$conf{'server'}:$conf{'port'}]";
    
    
######################
#  Exit the program  #
######################
    
    ## Print / Log the detailed message
    quit($output, 0);
}
else {
    ## Or the standard message
    quit("Email was sent successfully!", 0);
}