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
|
/*
* options.c - handles option processing for PPP.
*
* Copyright (c) 1989 Carnegie Mellon University.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Carnegie Mellon University. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char rcsid[] = "$Id: options.c,v 1.1 1995/10/18 08:47:59 deraadt Exp $";
#endif
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <limits.h>
#include <stdlib.h>
#include <termios.h>
#include <syslog.h>
#include <string.h>
#include <netdb.h>
#include <pwd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include "pppd.h"
#include "pathnames.h"
#include "patchlevel.h"
#include "fsm.h"
#include "lcp.h"
#include "ipcp.h"
#include "upap.h"
#include "chap.h"
#include "ccp.h"
#include <net/ppp-comp.h>
#define FALSE 0
#define TRUE 1
#if defined(ultrix) || defined(NeXT)
char *strdup __P((char *));
#endif
#ifndef GIDSET_TYPE
#define GIDSET_TYPE gid_t
#endif
/*
* Option variables and default values.
*/
int debug = 0; /* Debug flag */
int kdebugflag = 0; /* Tell kernel to print debug messages */
int default_device = 1; /* Using /dev/tty or equivalent */
char devnam[MAXPATHLEN] = "/dev/tty"; /* Device name */
int crtscts = 0; /* Use hardware flow control */
int modem = 1; /* Use modem control lines */
int inspeed = 0; /* Input/Output speed requested */
u_int32_t netmask = 0; /* IP netmask to set on interface */
int lockflag = 0; /* Create lock file to lock the serial dev */
int nodetach = 0; /* Don't detach from controlling tty */
char *connector = NULL; /* Script to establish physical link */
char *disconnector = NULL; /* Script to disestablish physical link */
char user[MAXNAMELEN]; /* Username for PAP */
char passwd[MAXSECRETLEN]; /* Password for PAP */
int auth_required = 0; /* Peer is required to authenticate */
int defaultroute = 0; /* assign default route through interface */
int proxyarp = 0; /* Set up proxy ARP entry for peer */
int persist = 0; /* Reopen link after it goes down */
int uselogin = 0; /* Use /etc/passwd for checking PAP */
int lcp_echo_interval = 0; /* Interval between LCP echo-requests */
int lcp_echo_fails = 0; /* Tolerance to unanswered echo-requests */
char our_name[MAXNAMELEN]; /* Our name for authentication purposes */
char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
int usehostname = 0; /* Use hostname for our_name */
int disable_defaultip = 0; /* Don't use hostname for default IP adrs */
char *ipparam = NULL; /* Extra parameter for ip up/down scripts */
int cryptpap; /* Passwords in pap-secrets are encrypted */
#ifdef _linux_
int idle_time_limit = 0;
static int setidle __P((char **));
#endif
/*
* Prototypes
*/
static int setdebug __P((void));
static int setkdebug __P((char **));
static int setpassive __P((void));
static int setsilent __P((void));
static int noopt __P((void));
static int setnovj __P((void));
static int setnovjccomp __P((void));
static int setvjslots __P((char **));
static int reqpap __P((void));
static int nopap __P((void));
static int setupapfile __P((char **));
static int nochap __P((void));
static int reqchap __P((void));
static int setspeed __P((char *));
static int noaccomp __P((void));
static int noasyncmap __P((void));
static int noipaddr __P((void));
static int nomagicnumber __P((void));
static int setasyncmap __P((char **));
static int setescape __P((char **));
static int setmru __P((char **));
static int setmtu __P((char **));
static int nomru __P((void));
static int nopcomp __P((void));
static int setconnector __P((char **));
static int setdisconnector __P((char **));
static int setdomain __P((char **));
static int setnetmask __P((char **));
static int setcrtscts __P((void));
static int setnocrtscts __P((void));
static int setxonxoff __P((void));
static int setnodetach __P((void));
static int setmodem __P((void));
static int setlocal __P((void));
static int setlock __P((void));
static int setname __P((char **));
static int setuser __P((char **));
static int setremote __P((char **));
static int setauth __P((void));
static int readfile __P((char **));
static int setdefaultroute __P((void));
static int setnodefaultroute __P((void));
static int setproxyarp __P((void));
static int setnoproxyarp __P((void));
static int setpersist __P((void));
static int setdologin __P((void));
static int setusehostname __P((void));
static int setnoipdflt __P((void));
static int setlcptimeout __P((char **));
static int setlcpterm __P((char **));
static int setlcpconf __P((char **));
static int setlcpfails __P((char **));
static int setipcptimeout __P((char **));
static int setipcpterm __P((char **));
static int setipcpconf __P((char **));
static int setipcpfails __P((char **));
static int setpaptimeout __P((char **));
static int setpapreqs __P((char **));
static int setpapreqtime __P((char **));
static int setchaptimeout __P((char **));
static int setchapchal __P((char **));
static int setchapintv __P((char **));
static int setipcpaccl __P((void));
static int setipcpaccr __P((void));
static int setlcpechointv __P((char **));
static int setlcpechofails __P((char **));
static int setbsdcomp __P((char **));
static int setnobsdcomp __P((void));
static int setipparam __P((char **));
static int setpapcrypt __P((void));
static int number_option __P((char *, u_int32_t *, int));
static int readable __P((int fd));
void usage();
/*
* Valid arguments.
*/
static struct cmd {
char *cmd_name;
int num_args;
int (*cmd_func)();
} cmds[] = {
{"-all", 0, noopt}, /* Don't request/allow any options */
{"-ac", 0, noaccomp}, /* Disable Address/Control compress */
{"-am", 0, noasyncmap}, /* Disable asyncmap negotiation */
{"-as", 1, setasyncmap}, /* set the desired async map */
{"-d", 0, setdebug}, /* Increase debugging level */
{"-detach", 0, setnodetach}, /* don't fork */
{"-ip", 0, noipaddr}, /* Disable IP address negotiation */
{"-mn", 0, nomagicnumber}, /* Disable magic number negotiation */
{"-mru", 0, nomru}, /* Disable mru negotiation */
{"-p", 0, setpassive}, /* Set passive mode */
{"-pc", 0, nopcomp}, /* Disable protocol field compress */
{"+ua", 1, setupapfile}, /* Get PAP user and password from file */
{"+pap", 0, reqpap}, /* Require PAP auth from peer */
{"-pap", 0, nopap}, /* Don't allow UPAP authentication with peer */
{"+chap", 0, reqchap}, /* Require CHAP authentication from peer */
{"-chap", 0, nochap}, /* Don't allow CHAP authentication with peer */
{"-vj", 0, setnovj}, /* disable VJ compression */
{"-vjccomp", 0, setnovjccomp}, /* disable VJ connection-ID compression */
{"vj-max-slots", 1, setvjslots}, /* Set maximum VJ header slots */
{"asyncmap", 1, setasyncmap}, /* set the desired async map */
{"escape", 1, setescape}, /* set chars to escape on transmission */
{"connect", 1, setconnector}, /* A program to set up a connection */
{"disconnect", 1, setdisconnector}, /* program to disconnect serial dev. */
{"crtscts", 0, setcrtscts}, /* set h/w flow control */
{"-crtscts", 0, setnocrtscts}, /* clear h/w flow control */
{"xonxoff", 0, setxonxoff}, /* set s/w flow control */
{"debug", 0, setdebug}, /* Increase debugging level */
{"kdebug", 1, setkdebug}, /* Enable kernel-level debugging */
{"domain", 1, setdomain}, /* Add given domain name to hostname*/
{"mru", 1, setmru}, /* Set MRU value for negotiation */
{"mtu", 1, setmtu}, /* Set our MTU */
{"netmask", 1, setnetmask}, /* set netmask */
{"passive", 0, setpassive}, /* Set passive mode */
{"silent", 0, setsilent}, /* Set silent mode */
{"modem", 0, setmodem}, /* Use modem control lines */
{"local", 0, setlocal}, /* Don't use modem control lines */
{"lock", 0, setlock}, /* Lock serial device (with lock file) */
{"name", 1, setname}, /* Set local name for authentication */
{"user", 1, setuser}, /* Set username for PAP auth with peer */
{"usehostname", 0, setusehostname}, /* Must use hostname for auth. */
{"remotename", 1, setremote}, /* Set remote name for authentication */
{"auth", 0, setauth}, /* Require authentication from peer */
{"file", 1, readfile}, /* Take options from a file */
{"defaultroute", 0, setdefaultroute}, /* Add default route */
{"-defaultroute", 0, setnodefaultroute}, /* disable defaultroute option */
{"proxyarp", 0, setproxyarp}, /* Add proxy ARP entry */
{"-proxyarp", 0, setnoproxyarp}, /* disable proxyarp option */
{"persist", 0, setpersist}, /* Keep on reopening connection after close */
{"login", 0, setdologin}, /* Use system password database for UPAP */
{"noipdefault", 0, setnoipdflt}, /* Don't use name for default IP adrs */
{"lcp-echo-failure", 1, setlcpechofails}, /* consecutive echo failures */
{"lcp-echo-interval", 1, setlcpechointv}, /* time for lcp echo events */
{"lcp-restart", 1, setlcptimeout}, /* Set timeout for LCP */
{"lcp-max-terminate", 1, setlcpterm}, /* Set max #xmits for term-reqs */
{"lcp-max-configure", 1, setlcpconf}, /* Set max #xmits for conf-reqs */
{"lcp-max-failure", 1, setlcpfails}, /* Set max #conf-naks for LCP */
{"ipcp-restart", 1, setipcptimeout}, /* Set timeout for IPCP */
{"ipcp-max-terminate", 1, setipcpterm}, /* Set max #xmits for term-reqs */
{"ipcp-max-configure", 1, setipcpconf}, /* Set max #xmits for conf-reqs */
{"ipcp-max-failure", 1, setipcpfails}, /* Set max #conf-naks for IPCP */
{"pap-restart", 1, setpaptimeout}, /* Set retransmit timeout for PAP */
{"pap-max-authreq", 1, setpapreqs}, /* Set max #xmits for auth-reqs */
{"pap-timeout", 1, setpapreqtime}, /* Set time limit for peer PAP auth. */
{"chap-restart", 1, setchaptimeout}, /* Set timeout for CHAP */
{"chap-max-challenge", 1, setchapchal}, /* Set max #xmits for challenge */
{"chap-interval", 1, setchapintv}, /* Set interval for rechallenge */
{"ipcp-accept-local", 0, setipcpaccl}, /* Accept peer's address for us */
{"ipcp-accept-remote", 0, setipcpaccr}, /* Accept peer's address for it */
{"bsdcomp", 1, setbsdcomp}, /* request BSD-Compress */
{"-bsdcomp", 0, setnobsdcomp}, /* don't allow BSD-Compress */
{"ipparam", 1, setipparam}, /* set ip script parameter */
{"papcrypt", 0, setpapcrypt}, /* PAP passwords encrypted */
#ifdef _linux_
{"idle-disconnect", 1, setidle}, /* seconds for disconnect of idle IP */
#endif
{NULL, 0, NULL}
};
#ifndef IMPLEMENTATION
#define IMPLEMENTATION ""
#endif
static char *usage_string = "\
pppd version %s patch level %d%s\n\
Usage: %s [ arguments ], where arguments are:\n\
<device> Communicate over the named device\n\
<speed> Set the baud rate to <speed>\n\
<loc>:<rem> Set the local and/or remote interface IP\n\
addresses. Either one may be omitted.\n\
asyncmap <n> Set the desired async map to hex <n>\n\
auth Require authentication from peer\n\
connect <p> Invoke shell command <p> to set up the serial line\n\
crtscts Use hardware RTS/CTS flow control\n\
defaultroute Add default route through interface\n\
file <f> Take options from file <f>\n\
modem Use modem control lines\n\
mru <n> Set MRU value to <n> for negotiation\n\
netmask <n> Set interface netmask to <n>\n\
See pppd(8) for more options.\n\
";
/*
* parse_args - parse a string of arguments, from the command
* line or from a file.
*/
int
parse_args(argc, argv)
int argc;
char **argv;
{
char *arg, *val;
struct cmd *cmdp;
int ret;
while (argc > 0) {
arg = *argv++;
--argc;
/*
* First see if it's a command.
*/
for (cmdp = cmds; cmdp->cmd_name; cmdp++)
if (!strcmp(arg, cmdp->cmd_name))
break;
if (cmdp->cmd_name != NULL) {
if (argc < cmdp->num_args) {
fprintf(stderr, "Too few parameters for command %s\n", arg);
return 0;
}
if (!(*cmdp->cmd_func)(argv))
return 0;
argc -= cmdp->num_args;
argv += cmdp->num_args;
} else {
/*
* Maybe a tty name, speed or IP address?
*/
if ((ret = setdevname(arg)) == 0
&& (ret = setspeed(arg)) == 0
&& (ret = setipaddr(arg)) == 0) {
fprintf(stderr, "%s: unrecognized command\n", arg);
usage();
return 0;
}
if (ret < 0) /* error */
return 0;
}
}
return 1;
}
/*
* usage - print out a message telling how to use the program.
*/
void
usage()
{
fprintf(stderr, usage_string, VERSION, PATCHLEVEL, IMPLEMENTATION,
progname);
}
/*
* options_from_file - Read a string of options from a file,
* and interpret them.
*/
int
options_from_file(filename, must_exist, check_prot)
char *filename;
int must_exist;
int check_prot;
{
FILE *f;
int i, newline, ret;
struct cmd *cmdp;
char *argv[MAXARGS];
char args[MAXARGS][MAXWORDLEN];
char cmd[MAXWORDLEN];
if ((f = fopen(filename, "r")) == NULL) {
if (!must_exist && errno == ENOENT)
return 1;
perror(filename);
return 0;
}
if (check_prot && !readable(fileno(f))) {
fprintf(stderr, "%s: access denied\n", filename);
fclose(f);
return 0;
}
while (getword(f, cmd, &newline, filename)) {
/*
* First see if it's a command.
*/
for (cmdp = cmds; cmdp->cmd_name; cmdp++)
if (!strcmp(cmd, cmdp->cmd_name))
break;
if (cmdp->cmd_name != NULL) {
for (i = 0; i < cmdp->num_args; ++i) {
if (!getword(f, args[i], &newline, filename)) {
fprintf(stderr,
"In file %s: too few parameters for command %s\n",
filename, cmd);
fclose(f);
return 0;
}
argv[i] = args[i];
}
if (!(*cmdp->cmd_func)(argv)) {
fclose(f);
return 0;
}
} else {
/*
* Maybe a tty name, speed or IP address?
*/
if ((ret = setdevname(cmd)) == 0
&& (ret = setspeed(cmd)) == 0
&& (ret = setipaddr(cmd)) == 0) {
fprintf(stderr, "In file %s: unrecognized command %s\n",
filename, cmd);
fclose(f);
return 0;
}
if (ret < 0) /* error */
return 0;
}
}
return 1;
}
/*
* options_from_user - See if the use has a ~/.ppprc file,
* and if so, interpret options from it.
*/
int
options_from_user()
{
char *user, *path, *file;
int ret;
struct passwd *pw;
pw = getpwuid(getuid());
if (pw == NULL || (user = pw->pw_dir) == NULL || user[0] == 0)
return 1;
file = _PATH_USEROPT;
path = malloc(strlen(user) + strlen(file) + 2);
if (path == NULL)
novm("init file name");
strcpy(path, user);
strcat(path, "/");
strcat(path, file);
ret = options_from_file(path, 0, 1);
free(path);
return ret;
}
/*
* options_for_tty - See if an options file exists for the serial
* device, and if so, interpret options from it.
*/
int
options_for_tty()
{
char *dev, *path;
int ret;
dev = strrchr(devnam, '/');
if (dev == NULL)
dev = devnam;
else
++dev;
if (strcmp(dev, "tty") == 0)
return 1; /* don't look for /etc/ppp/options.tty */
path = malloc(strlen(_PATH_TTYOPT) + strlen(dev) + 1);
if (path == NULL)
novm("tty init file name");
strcpy(path, _PATH_TTYOPT);
strcat(path, dev);
ret = options_from_file(path, 0, 0);
free(path);
return ret;
}
/*
* readable - check if a file is readable by the real user.
*/
static int
readable(fd)
int fd;
{
uid_t uid;
int ngroups, i;
struct stat sbuf;
GIDSET_TYPE groups[NGROUPS_MAX];
uid = getuid();
if (uid == 0)
return 1;
if (fstat(fd, &sbuf) != 0)
return 0;
if (sbuf.st_uid == uid)
return sbuf.st_mode & S_IRUSR;
if (sbuf.st_gid == getgid())
return sbuf.st_mode & S_IRGRP;
ngroups = getgroups(NGROUPS_MAX, groups);
for (i = 0; i < ngroups; ++i)
if (sbuf.st_gid == groups[i])
return sbuf.st_mode & S_IRGRP;
return sbuf.st_mode & S_IROTH;
}
/*
* Read a word from a file.
* Words are delimited by white-space or by quotes (" or ').
* Quotes, white-space and \ may be escaped with \.
* \<newline> is ignored.
*/
int
getword(f, word, newlinep, filename)
FILE *f;
char *word;
int *newlinep;
char *filename;
{
int c, len, escape;
int quoted, comment;
int value, digit, got, n;
#define isoctal(c) ((c) >= '0' && (c) < '8')
*newlinep = 0;
len = 0;
escape = 0;
comment = 0;
/*
* First skip white-space and comments.
*/
for (;;) {
c = getc(f);
if (c == EOF)
break;
/*
* A newline means the end of a comment; backslash-newline
* is ignored. Note that we cannot have escape && comment.
*/
if (c == '\n') {
if (!escape) {
*newlinep = 1;
comment = 0;
} else
escape = 0;
continue;
}
/*
* Ignore characters other than newline in a comment.
*/
if (comment)
continue;
/*
* If this character is escaped, we have a word start.
*/
if (escape)
break;
/*
* If this is the escape character, look at the next character.
*/
if (c == '\\') {
escape = 1;
continue;
}
/*
* If this is the start of a comment, ignore the rest of the line.
*/
if (c == '#') {
comment = 1;
continue;
}
/*
* A non-whitespace character is the start of a word.
*/
if (!isspace(c))
break;
}
/*
* Save the delimiter for quoted strings.
*/
if (!escape && (c == '"' || c == '\'')) {
quoted = c;
c = getc(f);
} else
quoted = 0;
/*
* Process characters until the end of the word.
*/
while (c != EOF) {
if (escape) {
/*
* This character is escaped: backslash-newline is ignored,
* various other characters indicate particular values
* as for C backslash-escapes.
*/
escape = 0;
if (c == '\n') {
c = getc(f);
continue;
}
got = 0;
switch (c) {
case 'a':
value = '\a';
break;
case 'b':
value = '\b';
break;
case 'f':
value = '\f';
break;
case 'n':
value = '\n';
break;
case 'r':
value = '\r';
break;
case 's':
value = ' ';
break;
case 't':
value = '\t';
break;
default:
if (isoctal(c)) {
/*
* \ddd octal sequence
*/
value = 0;
for (n = 0; n < 3 && isoctal(c); ++n) {
value = (value << 3) + (c & 07);
c = getc(f);
}
got = 1;
break;
}
if (c == 'x') {
/*
* \x<hex_string> sequence
*/
value = 0;
c = getc(f);
for (n = 0; n < 2 && isxdigit(c); ++n) {
digit = toupper(c) - '0';
if (digit > 10)
digit += '0' + 10 - 'A';
value = (value << 4) + digit;
c = getc (f);
}
got = 1;
break;
}
/*
* Otherwise the character stands for itself.
*/
value = c;
break;
}
/*
* Store the resulting character for the escape sequence.
*/
if (len < MAXWORDLEN-1)
word[len] = value;
++len;
if (!got)
c = getc(f);
continue;
}
/*
* Not escaped: see if we've reached the end of the word.
*/
if (quoted) {
if (c == quoted)
break;
} else {
if (isspace(c) || c == '#') {
ungetc (c, f);
break;
}
}
/*
* Backslash starts an escape sequence.
*/
if (c == '\\') {
escape = 1;
c = getc(f);
continue;
}
/*
* An ordinary character: store it in the word and get another.
*/
if (len < MAXWORDLEN-1)
word[len] = c;
++len;
c = getc(f);
}
/*
* End of the word: check for errors.
*/
if (c == EOF) {
if (ferror(f)) {
if (errno == 0)
errno = EIO;
perror(filename);
die(1);
}
/*
* If len is zero, then we didn't find a word before the
* end of the file.
*/
if (len == 0)
return 0;
}
/*
* Warn if the word was too long, and append a terminating null.
*/
if (len >= MAXWORDLEN) {
fprintf(stderr, "%s: warning: word in file %s too long (%.20s...)\n",
progname, filename, word);
len = MAXWORDLEN - 1;
}
word[len] = 0;
return 1;
#undef isoctal
}
/*
* number_option - parse an unsigned numeric parameter for an option.
*/
static int
number_option(str, valp, base)
char *str;
u_int32_t *valp;
int base;
{
char *ptr;
*valp = strtoul(str, &ptr, base);
if (ptr == str) {
fprintf(stderr, "%s: invalid number: %s\n", progname, str);
return 0;
}
return 1;
}
/*
* int_option - like number_option, but valp is int *,
* the base is assumed to be 0, and *valp is not changed
* if there is an error.
*/
static int
int_option(str, valp)
char *str;
int *valp;
{
u_int32_t v;
if (!number_option(str, &v, 0))
return 0;
*valp = (int) v;
return 1;
}
/*
* The following procedures execute commands.
*/
/*
* readfile - take commands from a file.
*/
static int
readfile(argv)
char **argv;
{
return options_from_file(*argv, 1, 1);
}
/*
* setdebug - Set debug (command line argument).
*/
static int
setdebug()
{
debug++;
return (1);
}
/*
* setkdebug - Set kernel debugging level.
*/
static int
setkdebug(argv)
char **argv;
{
return int_option(*argv, &kdebugflag);
}
/*
* noopt - Disable all options.
*/
static int
noopt()
{
BZERO((char *) &lcp_wantoptions[0], sizeof (struct lcp_options));
BZERO((char *) &lcp_allowoptions[0], sizeof (struct lcp_options));
BZERO((char *) &ipcp_wantoptions[0], sizeof (struct ipcp_options));
BZERO((char *) &ipcp_allowoptions[0], sizeof (struct ipcp_options));
return (1);
}
/*
* noaccomp - Disable Address/Control field compression negotiation.
*/
static int
noaccomp()
{
lcp_wantoptions[0].neg_accompression = 0;
lcp_allowoptions[0].neg_accompression = 0;
return (1);
}
/*
* noasyncmap - Disable async map negotiation.
*/
static int
noasyncmap()
{
lcp_wantoptions[0].neg_asyncmap = 0;
lcp_allowoptions[0].neg_asyncmap = 0;
return (1);
}
/*
* noipaddr - Disable IP address negotiation.
*/
static int
noipaddr()
{
ipcp_wantoptions[0].neg_addr = 0;
ipcp_allowoptions[0].neg_addr = 0;
return (1);
}
/*
* nomagicnumber - Disable magic number negotiation.
*/
static int
nomagicnumber()
{
lcp_wantoptions[0].neg_magicnumber = 0;
lcp_allowoptions[0].neg_magicnumber = 0;
return (1);
}
/*
* nomru - Disable mru negotiation.
*/
static int
nomru()
{
lcp_wantoptions[0].neg_mru = 0;
lcp_allowoptions[0].neg_mru = 0;
return (1);
}
/*
* setmru - Set MRU for negotiation.
*/
static int
setmru(argv)
char **argv;
{
u_int32_t mru;
if (!number_option(*argv, &mru, 0))
return 0;
lcp_wantoptions[0].mru = mru;
lcp_wantoptions[0].neg_mru = 1;
return (1);
}
/*
* setmru - Set the largest MTU we'll use.
*/
static int
setmtu(argv)
char **argv;
{
u_int32_t mtu;
if (!number_option(*argv, &mtu, 0))
return 0;
if (mtu < MINMRU || mtu > MAXMRU) {
fprintf(stderr, "mtu option value of %ld is too %s\n", mtu,
(mtu < MINMRU? "small": "large"));
return 0;
}
lcp_allowoptions[0].mru = mtu;
return (1);
}
/*
* nopcomp - Disable Protocol field compression negotiation.
*/
static int
nopcomp()
{
lcp_wantoptions[0].neg_pcompression = 0;
lcp_allowoptions[0].neg_pcompression = 0;
return (1);
}
/*
* setpassive - Set passive mode (don't give up if we time out sending
* LCP configure-requests).
*/
static int
setpassive()
{
lcp_wantoptions[0].passive = 1;
return (1);
}
/*
* setsilent - Set silent mode (don't start sending LCP configure-requests
* until we get one from the peer).
*/
static int
setsilent()
{
lcp_wantoptions[0].silent = 1;
return 1;
}
/*
* nopap - Disable PAP authentication with peer.
*/
static int
nopap()
{
lcp_allowoptions[0].neg_upap = 0;
return (1);
}
/*
* reqpap - Require PAP authentication from peer.
*/
static int
reqpap()
{
lcp_wantoptions[0].neg_upap = 1;
auth_required = 1;
return 1;
}
/*
* setupapfile - specifies UPAP info for authenticating with peer.
*/
static int
setupapfile(argv)
char **argv;
{
FILE * ufile;
int l;
lcp_allowoptions[0].neg_upap = 1;
/* open user info file */
if ((ufile = fopen(*argv, "r")) == NULL) {
fprintf(stderr, "unable to open user login data file %s\n", *argv);
return 0;
}
if (!readable(fileno(ufile))) {
fprintf(stderr, "%s: access denied\n", *argv);
return 0;
}
check_access(ufile, *argv);
/* get username */
if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
|| fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
fprintf(stderr, "Unable to read user login data file %s.\n", *argv);
return 0;
}
fclose(ufile);
/* get rid of newlines */
l = strlen(user);
if (l > 0 && user[l-1] == '\n')
user[l-1] = 0;
l = strlen(passwd);
if (l > 0 && passwd[l-1] == '\n')
passwd[l-1] = 0;
return (1);
}
/*
* nochap - Disable CHAP authentication with peer.
*/
static int
nochap()
{
lcp_allowoptions[0].neg_chap = 0;
return (1);
}
/*
* reqchap - Require CHAP authentication from peer.
*/
static int
reqchap()
{
lcp_wantoptions[0].neg_chap = 1;
auth_required = 1;
return (1);
}
/*
* setnovj - disable vj compression
*/
static int
setnovj()
{
ipcp_wantoptions[0].neg_vj = 0;
ipcp_allowoptions[0].neg_vj = 0;
return (1);
}
/*
* setnovjccomp - disable VJ connection-ID compression
*/
static int
setnovjccomp()
{
ipcp_wantoptions[0].cflag = 0;
ipcp_allowoptions[0].cflag = 0;
return 1;
}
/*
* setvjslots - set maximum number of connection slots for VJ compression
*/
static int
setvjslots(argv)
char **argv;
{
int value;
if (!int_option(*argv, &value))
return 0;
if (value < 2 || value > 16) {
fprintf(stderr, "pppd: vj-max-slots value must be between 2 and 16\n");
return 0;
}
ipcp_wantoptions [0].maxslotindex =
ipcp_allowoptions[0].maxslotindex = value - 1;
return 1;
}
/*
* setconnector - Set a program to connect to a serial line
*/
static int
setconnector(argv)
char **argv;
{
connector = strdup(*argv);
if (connector == NULL)
novm("connector string");
return (1);
}
/*
* setdisconnector - Set a program to disconnect from the serial line
*/
static int
setdisconnector(argv)
char **argv;
{
disconnector = strdup(*argv);
if (disconnector == NULL)
novm("disconnector string");
return (1);
}
/*
* setdomain - Set domain name to append to hostname
*/
static int
setdomain(argv)
char **argv;
{
gethostname(hostname, MAXNAMELEN);
if (**argv != 0) {
if (**argv != '.')
strncat(hostname, ".", MAXNAMELEN - strlen(hostname));
strncat(hostname, *argv, MAXNAMELEN - strlen(hostname));
}
hostname[MAXNAMELEN-1] = 0;
return (1);
}
/*
* setasyncmap - add bits to asyncmap (what we request peer to escape).
*/
static int
setasyncmap(argv)
char **argv;
{
u_int32_t asyncmap;
if (!number_option(*argv, &asyncmap, 16))
return 0;
lcp_wantoptions[0].asyncmap |= asyncmap;
lcp_wantoptions[0].neg_asyncmap = 1;
return(1);
}
/*
* setescape - add chars to the set we escape on transmission.
*/
static int
setescape(argv)
char **argv;
{
int n, ret;
char *p, *endp;
p = *argv;
ret = 1;
while (*p) {
n = strtol(p, &endp, 16);
if (p == endp) {
fprintf(stderr, "%s: invalid hex number: %s\n", progname, p);
return 0;
}
p = endp;
if (n < 0 || 0x20 <= n && n <= 0x3F || n == 0x5E || n > 0xFF) {
fprintf(stderr, "%s: can't escape character 0x%x\n", progname, n);
ret = 0;
} else
xmit_accm[0][n >> 5] |= 1 << (n & 0x1F);
while (*p == ',' || *p == ' ')
++p;
}
return ret;
}
/*
* setspeed - Set the speed.
*/
static int
setspeed(arg)
char *arg;
{
char *ptr;
int spd;
spd = strtol(arg, &ptr, 0);
if (ptr == arg || *ptr != 0 || spd == 0)
return 0;
inspeed = spd;
return 1;
}
/*
* setdevname - Set the device name.
*/
int
setdevname(cp)
char *cp;
{
struct stat statbuf;
char *tty, *ttyname();
char dev[MAXPATHLEN];
if (strncmp("/dev/", cp, 5) != 0) {
strcpy(dev, "/dev/");
strncat(dev, cp, MAXPATHLEN - 5);
dev[MAXPATHLEN-1] = 0;
cp = dev;
}
/*
* Check if there is a device by this name.
*/
if (stat(cp, &statbuf) < 0) {
if (errno == ENOENT)
return 0;
syslog(LOG_ERR, cp);
return -1;
}
(void) strncpy(devnam, cp, MAXPATHLEN);
devnam[MAXPATHLEN-1] = 0;
default_device = FALSE;
return 1;
}
/*
* setipaddr - Set the IP address
*/
int
setipaddr(arg)
char *arg;
{
struct hostent *hp;
char *colon;
u_int32_t local, remote;
ipcp_options *wo = &ipcp_wantoptions[0];
/*
* IP address pair separated by ":".
*/
if ((colon = strchr(arg, ':')) == NULL)
return 0;
/*
* If colon first character, then no local addr.
*/
if (colon != arg) {
*colon = '\0';
if ((local = inet_addr(arg)) == -1) {
if ((hp = gethostbyname(arg)) == NULL) {
fprintf(stderr, "unknown host: %s\n", arg);
return -1;
} else {
local = *(u_int32_t *)hp->h_addr;
if (our_name[0] == 0) {
strncpy(our_name, arg, MAXNAMELEN);
our_name[MAXNAMELEN-1] = 0;
}
}
}
if (bad_ip_adrs(local)) {
fprintf(stderr, "bad local IP address %s\n", ip_ntoa(local));
return -1;
}
if (local != 0)
wo->ouraddr = local;
*colon = ':';
}
/*
* If colon last character, then no remote addr.
*/
if (*++colon != '\0') {
if ((remote = inet_addr(colon)) == -1) {
if ((hp = gethostbyname(colon)) == NULL) {
fprintf(stderr, "unknown host: %s\n", colon);
return -1;
} else {
remote = *(u_int32_t *)hp->h_addr;
if (remote_name[0] == 0) {
strncpy(remote_name, colon, MAXNAMELEN);
remote_name[MAXNAMELEN-1] = 0;
}
}
}
if (bad_ip_adrs(remote)) {
fprintf(stderr, "bad remote IP address %s\n", ip_ntoa(remote));
return -1;
}
if (remote != 0)
wo->hisaddr = remote;
}
return 1;
}
/*
* setnoipdflt - disable setipdefault()
*/
static int
setnoipdflt()
{
disable_defaultip = 1;
return 1;
}
/*
* setipcpaccl - accept peer's idea of our address
*/
static int
setipcpaccl()
{
ipcp_wantoptions[0].accept_local = 1;
return 1;
}
/*
* setipcpaccr - accept peer's idea of its address
*/
static int
setipcpaccr()
{
ipcp_wantoptions[0].accept_remote = 1;
return 1;
}
/*
* setipdefault - default our local IP address based on our hostname.
*/
void
setipdefault()
{
struct hostent *hp;
u_int32_t local;
ipcp_options *wo = &ipcp_wantoptions[0];
/*
* If local IP address already given, don't bother.
*/
if (wo->ouraddr != 0 || disable_defaultip)
return;
/*
* Look up our hostname (possibly with domain name appended)
* and take the first IP address as our local IP address.
* If there isn't an IP address for our hostname, too bad.
*/
wo->accept_local = 1; /* don't insist on this default value */
if ((hp = gethostbyname(hostname)) == NULL)
return;
local = *(u_int32_t *)hp->h_addr;
if (local != 0 && !bad_ip_adrs(local))
wo->ouraddr = local;
}
/*
* setnetmask - set the netmask to be used on the interface.
*/
static int
setnetmask(argv)
char **argv;
{
u_int32_t mask;
if ((mask = inet_addr(*argv)) == -1 || (netmask & ~mask) != 0) {
fprintf(stderr, "Invalid netmask %s\n", *argv);
return 0;
}
netmask = mask;
return (1);
}
static int
setcrtscts()
{
crtscts = 1;
return (1);
}
static int
setnocrtscts()
{
crtscts = -1;
return (1);
}
static int
setxonxoff()
{
lcp_wantoptions[0].asyncmap |= 0x000A0000; /* escape ^S and ^Q */
lcp_wantoptions[0].neg_asyncmap = 1;
crtscts = 2;
return (1);
}
static int
setnodetach()
{
nodetach = 1;
return (1);
}
static int
setmodem()
{
modem = 1;
return 1;
}
static int
setlocal()
{
modem = 0;
return 1;
}
static int
setlock()
{
lockflag = 1;
return 1;
}
static int
setusehostname()
{
usehostname = 1;
return 1;
}
static int
setname(argv)
char **argv;
{
if (our_name[0] == 0) {
strncpy(our_name, argv[0], MAXNAMELEN);
our_name[MAXNAMELEN-1] = 0;
}
return 1;
}
static int
setuser(argv)
char **argv;
{
strncpy(user, argv[0], MAXNAMELEN);
user[MAXNAMELEN-1] = 0;
return 1;
}
static int
setremote(argv)
char **argv;
{
strncpy(remote_name, argv[0], MAXNAMELEN);
remote_name[MAXNAMELEN-1] = 0;
return 1;
}
static int
setauth()
{
auth_required = 1;
return 1;
}
static int
setdefaultroute()
{
if (!ipcp_allowoptions[0].default_route) {
fprintf(stderr, "%s: defaultroute option is disabled\n", progname);
return 0;
}
ipcp_wantoptions[0].default_route = 1;
return 1;
}
static int
setnodefaultroute()
{
ipcp_allowoptions[0].default_route = 0;
ipcp_wantoptions[0].default_route = 0;
return 1;
}
static int
setproxyarp()
{
if (!ipcp_allowoptions[0].proxy_arp) {
fprintf(stderr, "%s: proxyarp option is disabled\n", progname);
return 0;
}
ipcp_wantoptions[0].proxy_arp = 1;
return 1;
}
static int
setnoproxyarp()
{
ipcp_wantoptions[0].proxy_arp = 0;
ipcp_allowoptions[0].proxy_arp = 0;
return 1;
}
static int
setpersist()
{
persist = 1;
return 1;
}
static int
setdologin()
{
uselogin = 1;
return 1;
}
/*
* Functions to set the echo interval for modem-less monitors
*/
static int
setlcpechointv(argv)
char **argv;
{
return int_option(*argv, &lcp_echo_interval);
}
static int
setlcpechofails(argv)
char **argv;
{
return int_option(*argv, &lcp_echo_fails);
}
/*
* Functions to set timeouts, max transmits, etc.
*/
static int
setlcptimeout(argv)
char **argv;
{
return int_option(*argv, &lcp_fsm[0].timeouttime);
}
static int
setlcpterm(argv)
char **argv;
{
return int_option(*argv, &lcp_fsm[0].maxtermtransmits);
}
static int
setlcpconf(argv)
char **argv;
{
return int_option(*argv, &lcp_fsm[0].maxconfreqtransmits);
}
static int
setlcpfails(argv)
char **argv;
{
return int_option(*argv, &lcp_fsm[0].maxnakloops);
}
static int
setipcptimeout(argv)
char **argv;
{
return int_option(*argv, &ipcp_fsm[0].timeouttime);
}
static int
setipcpterm(argv)
char **argv;
{
return int_option(*argv, &ipcp_fsm[0].maxtermtransmits);
}
static int
setipcpconf(argv)
char **argv;
{
return int_option(*argv, &ipcp_fsm[0].maxconfreqtransmits);
}
static int
setipcpfails(argv)
char **argv;
{
return int_option(*argv, &lcp_fsm[0].maxnakloops);
}
static int
setpaptimeout(argv)
char **argv;
{
return int_option(*argv, &upap[0].us_timeouttime);
}
static int
setpapreqtime(argv)
char **argv;
{
return int_option(*argv, &upap[0].us_reqtimeout);
}
static int
setpapreqs(argv)
char **argv;
{
return int_option(*argv, &upap[0].us_maxtransmits);
}
static int
setchaptimeout(argv)
char **argv;
{
return int_option(*argv, &chap[0].timeouttime);
}
static int
setchapchal(argv)
char **argv;
{
return int_option(*argv, &chap[0].max_transmits);
}
static int
setchapintv(argv)
char **argv;
{
return int_option(*argv, &chap[0].chal_interval);
}
static int
setbsdcomp(argv)
char **argv;
{
int rbits, abits;
char *str, *endp;
str = *argv;
abits = rbits = strtol(str, &endp, 0);
if (endp != str && *endp == ',') {
str = endp + 1;
abits = strtol(str, &endp, 0);
}
if (*endp != 0 || endp == str) {
fprintf(stderr, "%s: invalid argument format for bsdcomp option\n",
progname);
return 0;
}
if (rbits != 0 && (rbits < BSD_MIN_BITS || rbits > BSD_MAX_BITS)
|| abits != 0 && (abits < BSD_MIN_BITS || abits > BSD_MAX_BITS)) {
fprintf(stderr, "%s: bsdcomp option values must be 0 or %d .. %d\n",
progname, BSD_MIN_BITS, BSD_MAX_BITS);
return 0;
}
if (rbits > 0) {
ccp_wantoptions[0].bsd_compress = 1;
ccp_wantoptions[0].bsd_bits = rbits;
} else
ccp_wantoptions[0].bsd_compress = 0;
if (abits > 0) {
ccp_allowoptions[0].bsd_compress = 1;
ccp_allowoptions[0].bsd_bits = abits;
} else
ccp_allowoptions[0].bsd_compress = 0;
return 1;
}
static int
setnobsdcomp()
{
ccp_wantoptions[0].bsd_compress = 0;
ccp_allowoptions[0].bsd_compress = 0;
return 1;
}
static int
setipparam(argv)
char **argv;
{
ipparam = strdup(*argv);
if (ipparam == NULL)
novm("ipparam string");
return 1;
}
static int
setpapcrypt()
{
cryptpap = 1;
return 1;
}
#ifdef _linux_
static int setidle (argv)
char **argv;
{
return int_option(*argv, &idle_time_limit);
}
#endif
|