summaryrefslogtreecommitdiffstats
path: root/contrib/tcsh/tc.func.c
blob: b13fe04dd2d895ad5c6c89d5153e9a4c3fa5182b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
/* $Header: /p/tcsh/cvsroot/tcsh/tc.func.c,v 3.148 2011/12/14 16:36:44 christos Exp $ */
/*
 * tc.func.c: New tcsh builtins.
 */
/*-
 * Copyright (c) 1980, 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#include "sh.h"

RCSID("$tcsh: tc.func.c,v 3.148 2011/12/14 16:36:44 christos Exp $")

#include "ed.h"
#include "ed.defns.h"		/* for the function names */
#include "tw.h"
#include "tc.h"
#ifdef WINNT_NATIVE
#include "nt.const.h"
#else /* WINNT_NATIVE */
#include <sys/wait.h>
#endif /* WINNT_NATIVE */

#ifdef AFS
#include <afs/stds.h>
#include <afs/kautils.h>
long ka_UserAuthenticateGeneral();
#endif /* AFS */

#ifdef TESLA
extern int do_logout;
#endif /* TESLA */
extern time_t t_period;
extern int just_signaled;
static int precmd_active = 0;
static int jobcmd_active = 0; /* GrP */
static int postcmd_active = 0;
static int periodic_active = 0;
static int cwdcmd_active = 0;	/* PWP: for cwd_cmd */
static int beepcmd_active = 0;
static void (*alm_fun)(void) = NULL;

static	void	 auto_logout	(void);
static	char	*xgetpass	(const char *);
static	void	 auto_lock	(void);
#ifdef BSDJOBS
static	void	 insert		(struct wordent *, int);
static	void	 insert_we	(struct wordent *, struct wordent *);
static	int	 inlist		(Char *, Char *);
#endif /* BSDJOBS */
static	int	 tildecompare	(const void *, const void *);
static  Char    *gethomedir	(const Char *);
#ifdef REMOTEHOST
static	void	 palarm		(int);
static	void	 getremotehost	(int);
#endif /* REMOTEHOST */

/*
 * Tops-C shell
 */

/*
 * expand_lex: Take the given lex and return an expanded version of it.
 * First guy in lex list is ignored; last guy is ^J which we ignore.
 * Only take lex'es from position 'from' to position 'to' inclusive
 *
 * Note: csh sometimes sets bit 8 in characters which causes all kinds
 * of problems if we don't mask it here. Note: excl's in lexes have been
 * un-back-slashed and must be re-back-slashed
 *
 */
/* PWP: this is a combination of the old sprlex() and the expand_lex from
   the magic-space stuff */

Char   *
expand_lex(const struct wordent *sp0, int from, int to)
{
    struct Strbuf buf = Strbuf_INIT;
    const struct wordent *sp;
    Char *s;
    Char prev_c;
    int i;

    prev_c = '\0';

    if (!sp0 || (sp = sp0->next) == sp0 || sp == (sp0 = sp0->prev))
	return Strbuf_finish(&buf); /* null lex */

    for (i = 0; ; i++) {
	if ((i >= from) && (i <= to)) {	/* if in range */
	    for (s = sp->word; *s; s++) {
		/*
		 * bugfix by Michael Bloom: anything but the current history
		 * character {(PWP) and backslash} seem to be dealt with
		 * elsewhere.
		 */
		if ((*s & QUOTE)
		    && (((*s & TRIM) == HIST && HIST != '\0') ||
			(((*s & TRIM) == '\'') && (prev_c != '\\')) ||
			(((*s & TRIM) == '\"') && (prev_c != '\\')) ||
			(((*s & TRIM) == '\\') && (prev_c != '\\')))) {
		    Strbuf_append1(&buf, '\\');
		}
		Strbuf_append1(&buf, *s & TRIM);
		prev_c = *s;
	    }
	    Strbuf_append1(&buf, ' ');
	}
	sp = sp->next;
	if (sp == sp0)
	    break;
    }
    if (buf.len != 0)
	buf.len--;		/* get rid of trailing space */

    return Strbuf_finish(&buf);
}

Char   *
sprlex(const struct wordent *sp0)
{
    return expand_lex(sp0, 0, INT_MAX);
}


Char *
Itoa(int n, size_t min_digits, Char attributes)
{
    /*
     * The array size here is derived from
     *	log8(UINT_MAX)
     * which is guaranteed to be enough for a decimal
     * representation.  We add 1 because integer divide
     * rounds down.
     */
#ifndef CHAR_BIT
# define CHAR_BIT 8
#endif
    Char buf[CHAR_BIT * sizeof(int) / 3 + 1], *res, *p, *s;
    unsigned int un;	/* handle most negative # too */
    int pad = (min_digits != 0);

    if (sizeof(buf) - 1 < min_digits)
	min_digits = sizeof(buf) - 1;

    un = n;
    if (n < 0)
	un = -n;

    p = buf;
    do {
	*p++ = un % 10 + '0';
	un /= 10;
    } while ((pad && (ssize_t)--min_digits > 0) || un != 0);

    res = xmalloc((p - buf + 2) * sizeof(*res));
    s = res;
    if (n < 0)
	*s++ = '-';
    while (p > buf)
	*s++ = *--p | attributes;

    *s = '\0';
    return res;
}


/*ARGSUSED*/
void
dolist(Char **v, struct command *c)
{
    Char **globbed;
    int     i, k;
    struct stat st;

    USE(c);
    if (*++v == NULL) {
	struct Strbuf word = Strbuf_INIT;

	Strbuf_terminate(&word);
	cleanup_push(&word, Strbuf_cleanup);
	(void) t_search(&word, LIST, TW_ZERO, 0, STRNULL, 0);
	cleanup_until(&word);
	return;
    }
    v = glob_all_or_error(v);
    globbed = v;
    cleanup_push(globbed, blk_cleanup);
    for (k = 0; v[k] != NULL && v[k][0] != '-'; k++)
	continue;
    if (v[k]) {
	/*
	 * We cannot process a flag therefore we let ls do it right.
	 */
	Char *lspath;
	struct command *t;
	struct wordent cmd, *nextword, *lastword;
	Char   *cp;
	struct varent *vp;

	if (setintr) {
	    pintr_disabled++;
	    cleanup_push(&pintr_disabled, disabled_cleanup);
	}
	if (seterr) {
	    xfree(seterr);
	    seterr = NULL;
	}

	lspath = STRls;
	STRmCF[1] = 'C';
	STRmCF[3] = '\0';
	/* Look at listflags, to add -A to the flags, to get a path
	   of ls if necessary */
	if ((vp = adrof(STRlistflags)) != NULL && vp->vec != NULL &&
	    vp->vec[0] != STRNULL) {
	    if (vp->vec[1] != NULL && vp->vec[1][0] != '\0')
		lspath = vp->vec[1];
	    for (cp = vp->vec[0]; *cp; cp++)
		switch (*cp) {
		case 'x':
		    STRmCF[1] = 'x';
		    break;
		case 'a':
		    STRmCF[3] = 'a';
		    break;
		case 'A':
		    STRmCF[3] = 'A';
		    break;
		default:
		    break;
		}
	}

	cmd.word = STRNULL;
	lastword = &cmd;
	nextword = xcalloc(1, sizeof cmd);
	nextword->word = Strsave(lspath);
	lastword->next = nextword;
	nextword->prev = lastword;
	lastword = nextword;
	nextword = xcalloc(1, sizeof cmd);
	nextword->word = Strsave(STRmCF);
	lastword->next = nextword;
	nextword->prev = lastword;
#if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE)
	if (dspmbyte_ls) {
	    lastword = nextword;
	    nextword = xcalloc(1, sizeof cmd);
	    nextword->word = Strsave(STRmmliteral);
	    lastword->next = nextword;
	    nextword->prev = lastword;
	}
#endif
#ifdef COLOR_LS_F
	if (color_context_ls) {
	    lastword = nextword;
	    nextword = xcalloc(1, sizeof cmd);
	    nextword->word = Strsave(STRmmcolormauto);
	    lastword->next = nextword;
	    nextword->prev = lastword;
	}
#endif /* COLOR_LS_F */
	lastword = nextword;
	for (cp = *v; cp; cp = *++v) {
	    nextword = xcalloc(1, sizeof cmd);
	    nextword->word = quote(Strsave(cp));
	    lastword->next = nextword;
	    nextword->prev = lastword;
	    lastword = nextword;
	}
	lastword->next = &cmd;
	cmd.prev = lastword;
	cleanup_push(&cmd, lex_cleanup);

	/* build a syntax tree for the command. */
	t = syntax(cmd.next, &cmd, 0);
	cleanup_push(t, syntax_cleanup);
	if (seterr)
	    stderror(ERR_OLD);
	/* expand aliases like process() does */
	/* alias(&cmd); */
	/* execute the parse tree. */
	execute(t, tpgrp > 0 ? tpgrp : -1, NULL, NULL, FALSE);
	/* done. free the lex list and parse tree. */
	cleanup_until(&cmd);
	if (setintr)
	    cleanup_until(&pintr_disabled);
    }
    else {
	Char   *dp, *tmp;
	struct Strbuf buf = Strbuf_INIT;

	cleanup_push(&buf, Strbuf_cleanup);
	for (k = 0, i = 0; v[k] != NULL; k++) {
	    tmp = dnormalize(v[k], symlinks == SYM_IGNORE);
	    cleanup_push(tmp, xfree);
	    dp = Strend(tmp) - 1;
	    if (*dp == '/' && dp != tmp)
#ifdef apollo
		if (dp != &tmp[1])
#endif /* apollo */
		*dp = '\0';
	    if (stat(short2str(tmp), &st) == -1) {
		int err;

		err = errno;
		if (k != i) {
		    if (i != 0)
			xputchar('\n');
		    print_by_column(STRNULL, &v[i], k - i, FALSE);
		}
		xprintf("%S: %s.\n", tmp, strerror(err));
		i = k + 1;
	    }
	    else if (S_ISDIR(st.st_mode)) {
		Char   *cp;

		if (k != i) {
		    if (i != 0)
			xputchar('\n');
		    print_by_column(STRNULL, &v[i], k - i, FALSE);
		}
		if (k != 0 && v[1] != NULL)
		    xputchar('\n');
		xprintf("%S:\n", tmp);
		buf.len = 0;
		for (cp = tmp; *cp; cp++)
		    Strbuf_append1(&buf, (*cp | QUOTE));
		Strbuf_terminate(&buf);
		dp = &buf.s[buf.len - 1];
		if (
#ifdef WINNT_NATIVE
		    (*dp != (Char) (':' | QUOTE)) &&
#endif /* WINNT_NATIVE */
		    (*dp != (Char) ('/' | QUOTE))) {
		    Strbuf_append1(&buf, '/');
		    Strbuf_terminate(&buf);
		} else 
		    *dp &= TRIM;
		(void) t_search(&buf, LIST, TW_ZERO, 0, STRNULL, 0);
		i = k + 1;
	    }
	    cleanup_until(tmp);
	}
	cleanup_until(&buf);
	if (k != i) {
	    if (i != 0)
		xputchar('\n');
	    print_by_column(STRNULL, &v[i], k - i, FALSE);
	}
    }

    cleanup_until(globbed);
}

extern int GotTermCaps;

/*ARGSUSED*/
void
dotelltc(Char **v, struct command *c)
{
    USE(v);
    USE(c);
    if (!GotTermCaps)
	GetTermCaps();
    TellTC();
}

/*ARGSUSED*/
void
doechotc(Char **v, struct command *c)
{
    USE(c);
    if (!GotTermCaps)
	GetTermCaps();
    EchoTC(++v);
}

/*ARGSUSED*/
void
dosettc(Char **v, struct command *c)
{
    char    *tv[2];

    USE(c);
    if (!GotTermCaps)
	GetTermCaps();

    tv[0] = strsave(short2str(v[1]));
    cleanup_push(tv[0], xfree);
    tv[1] = strsave(short2str(v[2]));
    cleanup_push(tv[1], xfree);
    SetTC(tv[0], tv[1]);
    cleanup_until(tv[0]);
}

/* The dowhich() is by:
 *  Andreas Luik <luik@isaak.isa.de>
 *  I S A  GmbH - Informationssysteme fuer computerintegrierte Automatisierung
 *  Azenberstr. 35
 *  D-7000 Stuttgart 1
 *  West-Germany
 * Thanks!!
 */
int
cmd_expand(Char *cmd, Char **str)
{
    struct wordent lexp[3];
    struct varent *vp;
    int rv = TRUE;

    lexp[0].next = &lexp[1];
    lexp[1].next = &lexp[2];
    lexp[2].next = &lexp[0];

    lexp[0].prev = &lexp[2];
    lexp[1].prev = &lexp[0];
    lexp[2].prev = &lexp[1];

    lexp[0].word = STRNULL;
    lexp[2].word = STRret;

    if ((vp = adrof1(cmd, &aliases)) != NULL && vp->vec != NULL) {
	if (str == NULL) {
	    xprintf(CGETS(22, 1, "%S: \t aliased to "), cmd);
	    blkpr(vp->vec);
	    xputchar('\n');
	}
	else
	    *str = blkexpand(vp->vec);
    }
    else {
	lexp[1].word = cmd;
	rv = tellmewhat(lexp, str);
    }
    return rv;
}


/*ARGSUSED*/
void
dowhich(Char **v, struct command *c)
{
    int rv = TRUE;
    USE(c);

    /*
     * We don't want to glob dowhich args because we lose quoteing
     * E.g. which \ls if ls is aliased will not work correctly if
     * we glob here.
     */

    while (*++v) 
	rv &= cmd_expand(*v, NULL);

    if (!rv)
	setcopy(STRstatus, STR1, VAR_READWRITE);
}

/* PWP: a hack to start up your stopped editor on a single keystroke */
/* jbs - fixed hack so it worked :-) 3/28/89 */

struct process *
find_stop_ed(void)
{
    struct process *pp, *retp;
    const char *ep, *vp;
    char *cp, *p;
    size_t epl, vpl;
    int pstatus;

    if ((ep = getenv("EDITOR")) != NULL) {	/* if we have a value */
	if ((p = strrchr(ep, '/')) != NULL) 	/* if it has a path */
	    ep = p + 1;		/* then we want only the last part */
    }
    else 
	ep = "ed";

    if ((vp = getenv("VISUAL")) != NULL) {	/* if we have a value */
	if ((p = strrchr(vp, '/')) != NULL) 	/* and it has a path */
	    vp = p + 1;		/* then we want only the last part */
    }
    else 
	vp = "vi";

    for (vpl = 0; vp[vpl] && !isspace((unsigned char)vp[vpl]); vpl++)
	continue;
    for (epl = 0; ep[epl] && !isspace((unsigned char)ep[epl]); epl++)
	continue;

    if (pcurrent == NULL)	/* see if we have any jobs */
	return NULL;		/* nope */

    retp = NULL;
    for (pp = proclist.p_next; pp; pp = pp->p_next)
	if (pp->p_procid == pp->p_jobid) {

	    /*
	     * Only foreground an edit session if it is suspended.  Some GUI
	     * editors have may be happily running in a separate window, no
	     * point in foregrounding these if they're already running - webb
	     */
	    pstatus = (int) (pp->p_flags & PALLSTATES);
	    if (pstatus != PINTERRUPTED && pstatus != PSTOPPED &&
		pstatus != PSIGNALED)
		continue;

	    p = short2str(pp->p_command);
	    /* get the first word */
	    for (cp = p; *cp && !isspace((unsigned char) *cp); cp++)
		continue;
	    *cp = '\0';
		
	    if ((cp = strrchr(p, '/')) != NULL)	/* and it has a path */
		cp = cp + 1;		/* then we want only the last part */
	    else
		cp = p;			/* else we get all of it */

	    /* if we find either in the current name, fg it */
	    if (strncmp(ep, cp, epl) == 0 ||
		strncmp(vp, cp, vpl) == 0) {

		/*
		 * If there is a choice, then choose the current process if
		 * available, or the previous process otherwise, or else
		 * anything will do - Robert Webb (robertw@mulga.cs.mu.oz.au).
		 */
		if (pp == pcurrent)
		    return pp;
		else if (retp == NULL || pp == pprevious)
		    retp = pp;
	    }
	}

    return retp;		/* Will be NULL if we didn't find a job */
}

void
fg_proc_entry(struct process *pp)
{
    jmp_buf_t osetexit;
    int    ohaderr;
    Char    oGettingInput;
    size_t omark;

    getexit(osetexit);

    pintr_disabled++;
    oGettingInput = GettingInput;
    GettingInput = 0;

    ohaderr = haderr;		/* we need to ignore setting of haderr due to
				 * process getting stopped by a signal */
    omark = cleanup_push_mark();
    if (setexit() == 0) {	/* come back here after pjwait */
	pendjob();
	(void) alarm(0);	/* No autologout */
	alrmcatch_disabled = 1;
	if (!pstart(pp, 1)) {
	    pp->p_procid = 0;
	    stderror(ERR_BADJOB, pp->p_command, strerror(errno));
	}
	pjwait(pp);
    }
    setalarm(1);		/* Autologout back on */
    cleanup_pop_mark(omark);
    resexit(osetexit);
    haderr = ohaderr;
    GettingInput = oGettingInput;

    disabled_cleanup(&pintr_disabled);
}

static char *
xgetpass(const char *prm)
{
    static struct strbuf pass; /* = strbuf_INIT; */
    int fd;
    sigset_t oset, set;
    struct sigaction sa, osa;

    sa.sa_handler = SIG_IGN;
    sigemptyset(&sa.sa_mask);
    sa.sa_flags = 0;
    (void)sigaction(SIGINT, &sa, &osa);

    sigemptyset(&set);
    sigaddset(&set, SIGINT);
    (void)sigprocmask(SIG_UNBLOCK, &set, &oset);

    cleanup_push(&osa, sigint_cleanup);
    cleanup_push(&oset, sigprocmask_cleanup);
    (void) Rawmode();	/* Make sure, cause we want echo off */
    fd = xopen("/dev/tty", O_RDWR|O_LARGEFILE);
    if (fd == -1)
	fd = SHIN;
    else
	cleanup_push(&fd, open_cleanup);

    xprintf("%s", prm); flush();
    pass.len = 0;
    for (;;)  {
	char c;

	if (xread(fd, &c, 1) < 1 || c == '\n') 
	    break;
	strbuf_append1(&pass, c);
    }
    strbuf_terminate(&pass);

    cleanup_until(&osa);

    return pass.s;
}

#ifndef NO_CRYPT
#if !HAVE_DECL_CRYPT
    extern char *crypt ();
#endif
#ifdef HAVE_CRYPT_H
#include <crypt.h>
#endif
#endif

/*
 * Ask the user for his login password to continue working
 * On systems that have a shadow password, this will only 
 * work for root, but what can we do?
 *
 * If we fail to get the password, then we log the user out
 * immediately
 */
/*ARGSUSED*/
static void
auto_lock(void)
{
#ifndef NO_CRYPT

    int i;
    char *srpp = NULL;
    struct passwd *pw;

#undef XCRYPT

#if defined(HAVE_AUTH_H) && defined(HAVE_GETAUTHUID)

    struct authorization *apw;
    extern char *crypt16 (const char *, const char *);

# define XCRYPT(pw, a, b) crypt16(a, b)

    if ((pw = xgetpwuid(euid)) != NULL &&	/* effective user passwd  */
        (apw = getauthuid(euid)) != NULL) 	/* enhanced ultrix passwd */
	srpp = apw->a_password;

#elif defined(HAVE_SHADOW_H)

    struct spwd *spw;

# define XCRYPT(pw, a, b) crypt(a, b)

    if ((pw = xgetpwuid(euid)) != NULL)	{	/* effective user passwd  */
	errno = 0;
	while ((spw = getspnam(pw->pw_name)) == NULL && errno == EINTR) {
	    handle_pending_signals();
	    errno = 0;
	}
	if (spw != NULL)			 /* shadowed passwd	  */
	    srpp = spw->sp_pwdp;
    }

#else


#ifdef __CYGWIN__
# define XCRYPT(pw, a, b) cygwin_xcrypt(pw, a, b)
#else
# define XCRYPT(pw, a, b) crypt(a, b)
#endif

#if !defined(__MVS__)
    if ((pw = xgetpwuid(euid)) != NULL)	/* effective user passwd  */
	srpp = pw->pw_passwd;
#endif /* !MVS */

#endif

    if (srpp == NULL) {
	auto_logout();
	/*NOTREACHED*/
	return;
    }

    setalarm(0);		/* Not for locking any more */
    xputchar('\n');
    for (i = 0; i < 5; i++) {
	const char *crpp;
	char *pp;
#ifdef AFS
	char *afsname;
	Char *safs;

	if ((safs = varval(STRafsuser)) != STRNULL)
	    afsname = short2str(safs);
	else
	    if ((afsname = getenv("AFSUSER")) == NULL)
	        afsname = pw->pw_name;
#endif
	pp = xgetpass("Password:");

	crpp = XCRYPT(pw, pp, srpp);
	if ((strcmp(crpp, srpp) == 0)
#ifdef AFS
	    || (ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION,
					   afsname,     /* name */
					   NULL,        /* instance */
					   NULL,        /* realm */
					   pp,          /* password */
					   0,           /* lifetime */
					   0, 0,         /* spare */
					   NULL)        /* reason */
	    == 0)
#endif /* AFS */
	    ) {
	    (void) memset(pp, 0, strlen(pp));
	    if (GettingInput && !just_signaled) {
		(void) Rawmode();
		ClearLines();
		ClearDisp();
		Refresh();
	    }
	    just_signaled = 0;
	    return;
	}
	xprintf(CGETS(22, 2, "\nIncorrect passwd for %s\n"), pw->pw_name);
    }
#endif /* NO_CRYPT */
    auto_logout();
}


static void
auto_logout(void)
{
    xprintf("auto-logout\n");
    /* Don't leave the tty in raw mode */
    if (editing)
	(void) Cookedmode();
    xclose(SHIN);
    setcopy(STRlogout, STRautomatic, VAR_READWRITE);
    child = 1;
#ifdef TESLA
    do_logout = 1;
#endif /* TESLA */
    GettingInput = FALSE; /* make flush() work to write hist files. Huber*/
    goodbye(NULL, NULL);
}

void
alrmcatch(void)
{
    (*alm_fun)();
    setalarm(1);
}

/*
 * Karl Kleinpaste, 21oct1983.
 * Added precmd(), which checks for the alias
 * precmd in aliases.  If it's there, the alias
 * is executed as a command.  This is done
 * after mailchk() and just before print-
 * ing the prompt.  Useful for things like printing
 * one's current directory just before each command.
 */
void
precmd(void)
{
    pintr_disabled++;
    cleanup_push(&pintr_disabled, disabled_cleanup);
    if (precmd_active) {	/* an error must have been caught */
	aliasrun(2, STRunalias, STRprecmd);
	xprintf("%s", CGETS(22, 3, "Faulty alias 'precmd' removed.\n"));
	goto leave;
    }
    precmd_active = 1;
    if (!whyles && adrof1(STRprecmd, &aliases))
	aliasrun(1, STRprecmd, NULL);
leave:
    precmd_active = 0;
    cleanup_until(&pintr_disabled);
}

void
postcmd(void)
{
    pintr_disabled++;
    cleanup_push(&pintr_disabled, disabled_cleanup);
    if (postcmd_active) {	/* an error must have been caught */
	aliasrun(2, STRunalias, STRpostcmd);
	xprintf("%s", CGETS(22, 3, "Faulty alias 'postcmd' removed.\n"));
	goto leave;
    }
    postcmd_active = 1;
    if (!whyles && adrof1(STRpostcmd, &aliases))
	aliasrun(1, STRpostcmd, NULL);
leave:
    postcmd_active = 0;
    cleanup_until(&pintr_disabled);
}

/*
 * Paul Placeway  11/24/87  Added cwd_cmd by hacking precmd() into
 * submission...  Run every time $cwd is set (after it is set).  Useful
 * for putting your machine and cwd (or anything else) in an xterm title
 * space.
 */
void
cwd_cmd(void)
{
    pintr_disabled++;
    cleanup_push(&pintr_disabled, disabled_cleanup);
    if (cwdcmd_active) {	/* an error must have been caught */
	aliasrun(2, STRunalias, STRcwdcmd);
	xprintf("%s", CGETS(22, 4, "Faulty alias 'cwdcmd' removed.\n"));
	goto leave;
    }
    cwdcmd_active = 1;
    if (!whyles && adrof1(STRcwdcmd, &aliases))
	aliasrun(1, STRcwdcmd, NULL);
leave:
    cwdcmd_active = 0;
    cleanup_until(&pintr_disabled);
}

/*
 * Joachim Hoenig  07/16/91  Added beep_cmd, run every time tcsh wishes 
 * to beep the terminal bell. Useful for playing nice sounds instead.
 */
void
beep_cmd(void)
{
    pintr_disabled++;
    cleanup_push(&pintr_disabled, disabled_cleanup);
    if (beepcmd_active) {	/* an error must have been caught */
	aliasrun(2, STRunalias, STRbeepcmd);
	xprintf("%s", CGETS(22, 5, "Faulty alias 'beepcmd' removed.\n"));
    }
    else {
	beepcmd_active = 1;
	if (!whyles && adrof1(STRbeepcmd, &aliases))
	    aliasrun(1, STRbeepcmd, NULL);
    }
    beepcmd_active = 0;
    cleanup_until(&pintr_disabled);
}


/*
 * Karl Kleinpaste, 18 Jan 1984.
 * Added period_cmd(), which executes the alias "periodic" every
 * $tperiod minutes.  Useful for occasional checking of msgs and such.
 */
void
period_cmd(void)
{
    Char *vp;
    time_t  t, interval;

    pintr_disabled++;
    cleanup_push(&pintr_disabled, disabled_cleanup);
    if (periodic_active) {	/* an error must have been caught */
	aliasrun(2, STRunalias, STRperiodic);
	xprintf("%s", CGETS(22, 6, "Faulty alias 'periodic' removed.\n"));
	goto leave;
    }
    periodic_active = 1;
    if (!whyles && adrof1(STRperiodic, &aliases)) {
	vp = varval(STRtperiod);
	if (vp == STRNULL) {
	    aliasrun(1, STRperiodic, NULL);
	    goto leave;
	}
	interval = getn(vp);
	(void) time(&t);
	if (t - t_period >= interval * 60) {
	    t_period = t;
	    aliasrun(1, STRperiodic, NULL);
	}
    }
leave:
    periodic_active = 0;
    cleanup_until(&pintr_disabled);
}


/* 
 * GrP Greg Parker May 2001
 * Added job_cmd(), which is run every time a job is started or 
 * foregrounded. The command is passed a single argument, the string 
 * used to start the job originally. With precmd, useful for setting 
 * xterm titles.
 * Cloned from cwd_cmd().
 */
void
job_cmd(Char *args)
{
    pintr_disabled++;
    cleanup_push(&pintr_disabled, disabled_cleanup);
    if (jobcmd_active) {	/* an error must have been caught */
	aliasrun(2, STRunalias, STRjobcmd);
	xprintf("%s", CGETS(22, 14, "Faulty alias 'jobcmd' removed.\n"));
	goto leave;
    }
    jobcmd_active = 1;
    if (!whyles && adrof1(STRjobcmd, &aliases)) {
	struct process *pp = pcurrjob; /* put things back after the hook */
	aliasrun(2, STRjobcmd, args);
	pcurrjob = pp;
    }
leave:
    jobcmd_active = 0;
    cleanup_until(&pintr_disabled);
}


/*
 * Karl Kleinpaste, 21oct1983.
 * Set up a one-word alias command, for use for special things.
 * This code is based on the mainline of process().
 */
void
aliasrun(int cnt, Char *s1, Char *s2)
{
    struct wordent w, *new1, *new2;	/* for holding alias name */
    struct command *t = NULL;
    jmp_buf_t osetexit;
    int status;
    size_t omark;

    getexit(osetexit);
    if (seterr) {
	xfree(seterr);
	seterr = NULL;	/* don't repeatedly print err msg. */
    }
    w.word = STRNULL;
    new1 = xcalloc(1, sizeof w);
    new1->word = Strsave(s1);
    if (cnt == 1) {
	/* build a lex list with one word. */
	w.next = w.prev = new1;
	new1->next = new1->prev = &w;
    }
    else {
	/* build a lex list with two words. */
	new2 = xcalloc(1, sizeof w);
	new2->word = Strsave(s2);
	w.next = new2->prev = new1;
	new1->next = w.prev = new2;
	new1->prev = new2->next = &w;
    }
    cleanup_push(&w, lex_cleanup);

    /* Save the old status */
    status = getn(varval(STRstatus));

    /* expand aliases like process() does. */
    alias(&w);
    /* build a syntax tree for the command. */
    t = syntax(w.next, &w, 0);
    cleanup_push(t, syntax_cleanup);
    if (seterr)
	stderror(ERR_OLD);

    psavejob();
    cleanup_push(&cnt, psavejob_cleanup); /* cnt is used only as a marker */

    /* catch any errors here */
    omark = cleanup_push_mark();
    if (setexit() == 0)
	/* execute the parse tree. */
	/*
	 * From: Michael Schroeder <mlschroe@immd4.informatik.uni-erlangen.de>
	 * was execute(t, tpgrp);
	 */
	execute(t, tpgrp > 0 ? tpgrp : -1, NULL, NULL, TRUE);
    /* reset the error catcher to the old place */
    cleanup_pop_mark(omark);
    resexit(osetexit);
    if (haderr) {
	haderr = 0;
	/*
	 * Either precmd, or cwdcmd, or periodic had an error. Call it again so
	 * that it is removed
	 */
	if (precmd_active)
	    precmd();
	if (postcmd_active)
	    postcmd();
#ifdef notdef
	/*
	 * XXX: On the other hand, just interrupting them causes an error too.
	 * So if we hit ^C in the middle of cwdcmd or periodic the alias gets
	 * removed. We don't want that. Note that we want to remove precmd
	 * though, cause that could lead into an infinite loop. This should be
	 * fixed correctly, but then haderr should give us the whole exit
	 * status not just true or false.
	 */
	else if (cwdcmd_active)
	    cwd_cmd();
	else if (beepcmd_active)
	    beep_cmd();
	else if (periodic_active)
	    period_cmd();
#endif /* notdef */
    }
    cleanup_until(&w);
    pendjob();
    /* Restore status */
    setv(STRstatus, putn((tcsh_number_t)status), VAR_READWRITE);
}

void
setalarm(int lck)
{
    struct varent *vp;
    Char   *cp;
    unsigned alrm_time = 0, logout_time, lock_time;
    time_t cl, nl, sched_dif;

    if ((vp = adrof(STRautologout)) != NULL && vp->vec != NULL) {
	if ((cp = vp->vec[0]) != 0) {
	    if ((logout_time = (unsigned) atoi(short2str(cp)) * 60) > 0) {
#ifdef SOLARIS2
		/*
		 * Solaris alarm(2) uses a timer based in clock ticks
		 * internally so it multiplies our value with CLK_TCK...
		 * Of course that can overflow leading to unexpected
		 * results, so we clip it here. Grr. Where is that
		 * documented folks?
		 */
		if (logout_time >= 0x7fffffff / CLK_TCK)
			logout_time = 0x7fffffff / CLK_TCK;
#endif /* SOLARIS2 */
		alrm_time = logout_time;
		alm_fun = auto_logout;
	    }
	}
	if ((cp = vp->vec[1]) != 0) {
	    if ((lock_time = (unsigned) atoi(short2str(cp)) * 60) > 0) {
		if (lck) {
		    if (alrm_time == 0 || lock_time < alrm_time) {
			alrm_time = lock_time;
			alm_fun = auto_lock;
		    }
		}
		else /* lock_time always < alrm_time */
		    if (alrm_time)
			alrm_time -= lock_time;
	    }
	}
    }
    if ((nl = sched_next()) != -1) {
	(void) time(&cl);
	sched_dif = nl > cl ? nl - cl : 0;
	if ((alrm_time == 0) || ((unsigned) sched_dif < alrm_time)) {
	    alrm_time = ((unsigned) sched_dif) + 1;
	    alm_fun = sched_run;
	}
    }
    alrmcatch_disabled = 0;
    (void) alarm(alrm_time);	/* Autologout ON */
}

#undef RMDEBUG			/* For now... */

void
rmstar(struct wordent *cp)
{
    struct wordent *we, *args;
    struct wordent *tmp, *del;

#ifdef RMDEBUG
    static Char STRrmdebug[] = {'r', 'm', 'd', 'e', 'b', 'u', 'g', '\0'};
    Char   *tag;
#endif /* RMDEBUG */
    Char   *charac;
    char    c;
    int     ask, doit, star = 0, silent = 0;

    if (!adrof(STRrmstar))
	return;
#ifdef RMDEBUG
    tag = varval(STRrmdebug);
#endif /* RMDEBUG */
    we = cp->next;
    while (*we->word == ';' && we != cp)
	we = we->next;
    while (we != cp) {
#ifdef RMDEBUG
	if (*tag)
	    xprintf(CGETS(22, 7, "parsing command line\n"));
#endif /* RMDEBUG */
	if (!Strcmp(we->word, STRrm)) {
	    args = we->next;
	    ask = (*args->word != '-');
	    while (*args->word == '-' && !silent) {	/* check options */
		for (charac = (args->word + 1); *charac && !silent; charac++)
		    silent = (*charac == 'i' || *charac == 'f');
		args = args->next;
	    }
	    ask = (ask || (!ask && !silent));
	    if (ask) {
		for (; !star && *args->word != ';'
		     && args != cp; args = args->next)
		    if (!Strcmp(args->word, STRstar))
			star = 1;
		if (ask && star) {
		    xprintf("%s", CGETS(22, 8,
			    "Do you really want to delete all files? [n/y] "));
		    flush();
		    (void) force_read(SHIN, &c, 1);
		    /* 
		     * Perhaps we should use the yesexpr from the
		     * actual locale
		     */
		    doit = (strchr(CGETS(22, 14, "Yy"), c) != NULL);
		    while (c != '\n' && force_read(SHIN, &c, 1) == 1)
			continue;
		    if (!doit) {
			/* remove the command instead */
#ifdef RMDEBUG
			if (*tag)
			    xprintf(CGETS(22, 9,
				    "skipping deletion of files!\n"));
#endif /* RMDEBUG */
			for (tmp = we;
			     *tmp->word != '\n' &&
			     *tmp->word != ';' && tmp != cp;) {
			    tmp->prev->next = tmp->next;
			    tmp->next->prev = tmp->prev;
			    xfree(tmp->word);
			    del = tmp;
			    tmp = tmp->next;
			    xfree(del);
			}
			if (*tmp->word == ';') {
			    tmp->prev->next = tmp->next;
			    tmp->next->prev = tmp->prev;
			    xfree(tmp->word);
			    del = tmp;
			    tmp = tmp->next;
			    xfree(del);
			}
			we = tmp;
			continue;
		    }
		}
	    }
	}
	for (we = we->next;
	     *we->word != ';' && we != cp;
	     we = we->next)
	    continue;
	if (*we->word == ';')
	    we = we->next;
    }
#ifdef RMDEBUG
    if (*tag) {
	xprintf(CGETS(22, 10, "command line now is:\n"));
	for (we = cp->next; we != cp; we = we->next)
	    xprintf("%S ", we->word);
    }
#endif /* RMDEBUG */
    return;
}

#ifdef BSDJOBS
/* Check if command is in continue list
   and do a "aliasing" if it exists as a job in background */

#undef CNDEBUG			/* For now */
void
continue_jobs(struct wordent *cp)
{
    struct wordent *we;
    struct process *pp, *np;
    Char   *cmd, *continue_list, *continue_args_list;

#ifdef CNDEBUG
    Char   *tag;
    static Char STRcndebug[] =
    {'c', 'n', 'd', 'e', 'b', 'u', 'g', '\0'};
#endif /* CNDEBUG */
    int    in_cont_list, in_cont_arg_list;


#ifdef CNDEBUG
    tag = varval(STRcndebug);
#endif /* CNDEBUG */
    continue_list = varval(STRcontinue);
    continue_args_list = varval(STRcontinue_args);
    if (*continue_list == '\0' && *continue_args_list == '\0')
	return;

    we = cp->next;
    while (*we->word == ';' && we != cp)
	we = we->next;
    while (we != cp) {
#ifdef CNDEBUG
	if (*tag)
	    xprintf(CGETS(22, 11, "parsing command line\n"));
#endif /* CNDEBUG */
	cmd = we->word;
	in_cont_list = inlist(continue_list, cmd);
	in_cont_arg_list = inlist(continue_args_list, cmd);
	if (in_cont_list || in_cont_arg_list) {
#ifdef CNDEBUG
	    if (*tag)
		xprintf(CGETS(22, 12, "in one of the lists\n"));
#endif /* CNDEBUG */
	    np = NULL;
	    for (pp = proclist.p_next; pp; pp = pp->p_next) {
		if (prefix(cmd, pp->p_command)) {
		    if (pp->p_index) {
			np = pp;
			break;
		    }
		}
	    }
	    if (np) {
		insert(we, in_cont_arg_list);
	    }
	}
	for (we = we->next;
	     *we->word != ';' && we != cp;
	     we = we->next)
	    continue;
	if (*we->word == ';')
	    we = we->next;
    }
#ifdef CNDEBUG
    if (*tag) {
	xprintf(CGETS(22, 13, "command line now is:\n"));
	for (we = cp->next; we != cp; we = we->next)
	    xprintf("%S ", we->word);
    }
#endif /* CNDEBUG */
    return;
}

/* The actual "aliasing" of for backgrounds() is done here
   with the aid of insert_we().   */
static void
insert(struct wordent *pl, int file_args)
{
    struct wordent *now, *last;
    Char   *cmd, *bcmd, *cp1, *cp2;
    size_t cmd_len;
    Char   *upause = STRunderpause;
    size_t p_len = Strlen(upause);

    cmd_len = Strlen(pl->word);
    cmd = xcalloc(1, (cmd_len + 1) * sizeof(Char));
    (void) Strcpy(cmd, pl->word);
/* Do insertions at beginning, first replace command word */

    if (file_args) {
	now = pl;
	xfree(now->word);
	now->word = xcalloc(1, 5 * sizeof(Char));
	(void) Strcpy(now->word, STRecho);

	now = xcalloc(1, sizeof(struct wordent));
	now->word = xcalloc(1, 6 * sizeof(Char));
	(void) Strcpy(now->word, STRbackqpwd);
	insert_we(now, pl);

	for (last = now; *last->word != '\n' && *last->word != ';';
	     last = last->next)
	    continue;

	now = xcalloc(1, sizeof(struct wordent));
	now->word = xcalloc(1, 2 * sizeof(Char));
	(void) Strcpy(now->word, STRgt);
	insert_we(now, last->prev);

	now = xcalloc(1, sizeof(struct wordent));
	now->word = xcalloc(1, 2 * sizeof(Char));
	(void) Strcpy(now->word, STRbang);
	insert_we(now, last->prev);

	now = xcalloc(1, sizeof(struct wordent));
	now->word = xcalloc(1, (cmd_len + p_len + 4) * sizeof(Char));
	cp1 = now->word;
	cp2 = cmd;
	*cp1++ = '~';
	*cp1++ = '/';
	*cp1++ = '.';
	while ((*cp1++ = *cp2++) != '\0')
	    continue;
	cp1--;
	cp2 = upause;
	while ((*cp1++ = *cp2++) != '\0')
	    continue;
	insert_we(now, last->prev);

	now = xcalloc(1, sizeof(struct wordent));
	now->word = xcalloc(1, 2 * sizeof(Char));
	(void) Strcpy(now->word, STRsemi);
	insert_we(now, last->prev);
	bcmd = xcalloc(1, (cmd_len + 2) * sizeof(Char));
	*bcmd = '%';
	Strcpy(bcmd + 1, cmd);
	now = xcalloc(1, sizeof(struct wordent));
	now->word = bcmd;
	insert_we(now, last->prev);
    }
    else {
	struct wordent *del;

	now = pl;
	xfree(now->word);
	now->word = xcalloc(1, (cmd_len + 2) * sizeof(Char));
	*now->word = '%';
	Strcpy(now->word + 1, cmd);
	for (now = now->next;
	     *now->word != '\n' && *now->word != ';' && now != pl;) {
	    now->prev->next = now->next;
	    now->next->prev = now->prev;
	    xfree(now->word);
	    del = now;
	    now = now->next;
	    xfree(del);
	}
    }
}

static void
insert_we(struct wordent *new, struct wordent *where)
{

    new->prev = where;
    new->next = where->next;
    where->next = new;
    new->next->prev = new;
}

static int
inlist(Char *list, Char *name)
{
    Char *l, *n;

    l = list;
    n = name;

    while (*l && *n) {
	if (*l == *n) {
	    l++;
	    n++;
	    if (*n == '\0' && (*l == ' ' || *l == '\0'))
		return (1);
	    else
		continue;
	}
	else {
	    while (*l && *l != ' ')
		l++;		/* skip to blank */
	    while (*l && *l == ' ')
		l++;		/* and find first nonblank character */
	    n = name;
	}
    }
    return (0);
}

#endif /* BSDJOBS */


/*
 * Implement a small cache for tilde names. This is used primarily
 * to expand tilde names to directories, but also
 * we can find users from their home directories for the tilde
 * prompt, on machines where yp lookup is slow this can be a big win...
 * As with any cache this can run out of sync, rehash can sync it again.
 */
static struct tildecache {
    Char   *user;
    Char   *home;
    size_t  hlen;
}      *tcache = NULL;

#define TILINCR 10
size_t tlength = 0;
static size_t tsize = TILINCR;

static int
tildecompare(const void *xp1, const void *xp2)
{
    const struct tildecache *p1, *p2;

    p1 = xp1;
    p2 = xp2;
    return Strcmp(p1->user, p2->user);
}

static Char *
gethomedir(const Char *us)
{
    struct passwd *pp;
#ifdef HESIOD
    char **res, **res1, *cp;
    Char *rp;
#endif /* HESIOD */
    
    pp = xgetpwnam(short2str(us));
#ifdef YPBUGS
    fix_yp_bugs();
#endif /* YPBUGS */
    if (pp != NULL) {
#if 0
	/* Don't return if root */
	if (pp->pw_dir[0] == '/' && pp->pw_dir[1] == '\0')
	    return NULL;
	else
#endif
	    return Strsave(str2short(pp->pw_dir));
    }
#ifdef HESIOD
    res = hes_resolve(short2str(us), "filsys");
    rp = NULL;
    if (res != NULL) {
	if ((*res) != NULL) {
	    /*
	     * Look at the first token to determine how to interpret
	     * the rest of it.
	     * Yes, strtok is evil (it's not thread-safe), but it's also
	     * easy to use.
	     */
	    cp = strtok(*res, " ");
	    if (strcmp(cp, "AFS") == 0) {
		/* next token is AFS pathname.. */
		cp = strtok(NULL, " ");
		if (cp != NULL)
		    rp = Strsave(str2short(cp));
	    } else if (strcmp(cp, "NFS") == 0) {
		cp = NULL;
		if ((strtok(NULL, " ")) && /* skip remote pathname */
		    (strtok(NULL, " ")) && /* skip host */
		    (strtok(NULL, " ")) && /* skip mode */
		    (cp = strtok(NULL, " "))) {
		    rp = Strsave(str2short(cp));
		}
	    }
	}
	for (res1 = res; *res1; res1++)
	    free(*res1);
#if 0
	/* Don't return if root */
	if (rp != NULL && rp[0] == '/' && rp[1] == '\0') {
	    xfree(rp);
	    rp = NULL;
	}
#endif
	return rp;
    }
#endif /* HESIOD */
    return NULL;
}

Char   *
gettilde(const Char *us)
{
    struct tildecache *bp1, *bp2, *bp;
    Char *hd;

    /* Ignore NIS special names */
    if (*us == '+' || *us == '-')
	return NULL;

    if (tcache == NULL)
	tcache = xmalloc(TILINCR * sizeof(struct tildecache));
    /*
     * Binary search
     */
    for (bp1 = tcache, bp2 = tcache + tlength; bp1 < bp2;) {
	int i;

	bp = bp1 + ((bp2 - bp1) >> 1);
	if ((i = *us - *bp->user) == 0 && (i = Strcmp(us, bp->user)) == 0)
	    return (bp->home);
	if (i < 0)
	    bp2 = bp;
	else
	    bp1 = bp + 1;
    }
    /*
     * Not in the cache, try to get it from the passwd file
     */
    hd = gethomedir(us);
    if (hd == NULL)
	return NULL;

    /*
     * Update the cache
     */
    tcache[tlength].user = Strsave(us);
    tcache[tlength].home = hd;
    tcache[tlength++].hlen = Strlen(hd);

    qsort(tcache, tlength, sizeof(struct tildecache), tildecompare);

    if (tlength == tsize) {
	tsize += TILINCR;
	tcache = xrealloc(tcache, tsize * sizeof(struct tildecache));
    }
    return (hd);
}

/*
 * Return the username if the directory path passed contains a
 * user's home directory in the tilde cache, otherwise return NULL
 * hm points to the place where the path became different.
 * Special case: Our own home directory.
 * If we are passed a null pointer, then we flush the cache.
 */
Char   *
getusername(Char **hm)
{
    Char   *h, *p;
    size_t i, j;

    if (hm == NULL) {
	for (i = 0; i < tlength; i++) {
	    xfree(tcache[i].home);
	    xfree(tcache[i].user);
	}
	xfree(tcache);
	tlength = 0;
	tsize = TILINCR;
	tcache = NULL;
	return NULL;
    }
    p = *hm;
    if (((h = varval(STRhome)) != STRNULL) &&
	(Strncmp(p, h, j = Strlen(h)) == 0) &&
	(p[j] == '/' || p[j] == '\0')) {
	*hm = &p[j];
	return STRNULL;
    }
    for (i = 0; i < tlength; i++)
	if ((Strncmp(p, tcache[i].home, (j = tcache[i].hlen)) == 0) &&
	    (p[j] == '/' || p[j] == '\0')) {
	    *hm = &p[j];
	    return tcache[i].user;
	}
    return NULL;
}


/*
 * set the shell-level var to 1 or apply change to it.
 */
void
shlvl(int val)
{
    char *cp;

    if ((cp = getenv("SHLVL")) != NULL) {

	if (loginsh)
	    val = 1;
	else
	    val += atoi(cp);

	if (val <= 0) {
	    if (adrof(STRshlvl) != NULL)
		unsetv(STRshlvl);
	    Unsetenv(STRKSHLVL);
	}
	else {
	    Char *p;

	    p = Itoa(val, 0, 0);
	    cleanup_push(p, xfree);
	    setv(STRshlvl, p, VAR_READWRITE);
	    cleanup_ignore(p);
	    cleanup_until(p);
	    tsetenv(STRKSHLVL, p);
	}
    }
    else {
	setcopy(STRshlvl, STR1, VAR_READWRITE);
	tsetenv(STRKSHLVL, STR1);
    }
}


/* fixio():
 *	Try to recover from a read error
 */
int
fixio(int fd, int e)
{
    switch (e) {
    case -1:	/* Make sure that the code is reachable */

#ifdef EWOULDBLOCK
    case EWOULDBLOCK:
# define FDRETRY
#endif /* EWOULDBLOCK */

#if defined(POSIX) && defined(EAGAIN)
# if !defined(EWOULDBLOCK) || EWOULDBLOCK != EAGAIN
    case EAGAIN:
#  define FDRETRY
# endif /* !EWOULDBLOCK || EWOULDBLOCK != EAGAIN */
#endif /* POSIX && EAGAIN */

	e = -1;
#ifdef FDRETRY
# ifdef F_SETFL
/*
 * Great! we have on suns 3 flavors and 5 names...
 * I hope that will cover everything.
 * I added some more defines... many systems have different defines.
 * Rather than dealing with getting the right includes, we'll just
 * cover all the known possibilities here.  -- sterling@netcom.com
 */
#  ifndef O_NONBLOCK
#   define O_NONBLOCK 0
#  endif /* O_NONBLOCK */
#  ifndef O_NDELAY
#   define O_NDELAY 0
#  endif /* O_NDELAY */
#  ifndef FNBIO
#   define FNBIO 0
#  endif /* FNBIO */
#  ifndef _FNBIO
#   define _FNBIO 0
#  endif /* _FNBIO */
#  ifndef FNONBIO
#   define FNONBIO 0
#  endif /* FNONBIO */
#  ifndef FNONBLOCK
#   define FNONBLOCK 0
#  endif /* FNONBLOCK */
#  ifndef _FNONBLOCK
#   define _FNONBLOCK 0
#  endif /* _FNONBLOCK */
#  ifndef FNDELAY
#   define FNDELAY 0
#  endif /* FNDELAY */
#  ifndef _FNDELAY
#   define _FNDELAY 0
#  endif /* _FNDELAY */
#  ifndef FNDLEAY	/* Some linux versions have this typo */
#   define FNDLEAY 0
#  endif /* FNDLEAY */
	if ((e = fcntl(fd, F_GETFL, 0)) == -1)
	    return -1;

	e &= ~(O_NDELAY|O_NONBLOCK|FNBIO|_FNBIO|FNONBIO|FNONBLOCK|_FNONBLOCK|
	       FNDELAY|_FNDELAY|FNDLEAY);	/* whew! */
	if (fcntl(fd, F_SETFL, e) == -1)
	    return -1;
	else 
	    e = 0;
# endif /* F_SETFL */

# ifdef FIONBIO
	e = 0;
	if (ioctl(fd, FIONBIO, (ioctl_t) &e) == -1)
	    return -1;
# endif	/* FIONBIO */

#endif /* FDRETRY */
	return e;

    case EINTR:
	return 0;

    default:
	return -1;
    }
}

/* collate():
 *	String collation
 */
int
collate(const Char *a, const Char *b)
{
    int rv;
#ifdef SHORT_STRINGS
    /* This strips the quote bit as a side effect */
    char *sa = strsave(short2str(a));
    char *sb = strsave(short2str(b));
#else
    char *sa = strip(strsave(a));
    char *sb = strip(strsave(b));
#endif /* SHORT_STRINGS */

#if defined(NLS) && defined(HAVE_STRCOLL)
    errno = 0;	/* strcoll sets errno, another brain-damage */

    rv = strcoll(sa, sb);

    /*
     * We should be checking for errno != 0, but some systems
     * forget to reset errno to 0. So we only check for the 
     * only documented valid errno value for strcoll [EINVAL]
     */
    if (errno == EINVAL) {
	xfree(sa);
	xfree(sb);
	stderror(ERR_SYSTEM, "strcoll", strerror(errno));
    }
#else
    rv = strcmp(sa, sb);
#endif /* NLS && HAVE_STRCOLL */

    xfree(sa);
    xfree(sb);

    return rv;
}

#ifdef HASHBANG
/*
 * From: peter@zeus.dialix.oz.au (Peter Wemm)
 * If exec() fails look first for a #! [word] [word] ....
 * If it is, splice the header into the argument list and retry.
 */
#define HACKBUFSZ 1024		/* Max chars in #! vector */
int
hashbang(int fd, Char ***vp)
{
    struct blk_buf sarg = BLK_BUF_INIT;
    char lbuf[HACKBUFSZ], *p, *ws;
#ifdef WINNT_NATIVE
    int fw = 0; 	/* found at least one word */
    int first_word = 1;
    char *real;
#endif /* WINNT_NATIVE */

    if (xread(fd, lbuf, HACKBUFSZ) <= 0)
	return -1;

    ws = 0;	/* word started = 0 */

    for (p = lbuf; p < &lbuf[HACKBUFSZ]; ) {
	switch (*p) {
	case ' ':
	case '\t':
#if defined(WINNT_NATIVE) || defined (__CYGWIN__)
	case '\r':
#endif /* WINNT_NATIVE || __CYGWIN__ */
	    if (ws) {	/* a blank after a word.. save it */
		*p = '\0';
#ifdef WINNT_NATIVE
		if (first_word) {
		    real = hb_subst(ws);
		    if (real != NULL)
			ws = real;
		}
	    	fw = 1;
		first_word = 0;
#endif /* WINNT_NATIVE */
		bb_append(&sarg, SAVE(ws));
		ws = NULL;
	    }
	    p++;
	    continue;

	case '\0':	/* Whoa!! what the hell happened */
	    goto err;

	case '\n':	/* The end of the line. */
	    if (
#ifdef WINNT_NATIVE
		fw ||
#endif /* WINNT_NATIVE */
		ws) {	/* terminate the last word */
		*p = '\0';
#ifdef WINNT_NATIVE
		/* deal with the 1-word case */
		if (first_word) {
		    real = hb_subst(ws);
		    if (real != NULL)
			ws = real;
		}
#endif /* !WINNT_NATIVE */
		if (ws)
		    bb_append(&sarg, SAVE(ws));
	    }
	    if (sarg.len > 0) {
		*vp = bb_finish(&sarg);
		return 0;
	    }
	    else
		goto err;

	default:
	    if (!ws)	/* Start a new word? */
		ws = p; 
	    p++;
	    break;
	}
    }
 err:
    bb_cleanup(&sarg);
    return -1;
}
#endif /* HASHBANG */

#ifdef REMOTEHOST

static void
palarm(int snum)
{
    USE(snum);
    _exit(1);
}

static void
getremotehost(int dest_fd)
{
    const char *host = NULL;
#ifdef INET6
    struct sockaddr_storage saddr;
    static char hbuf[NI_MAXHOST];
#else
    struct hostent* hp;
    struct sockaddr_in saddr;
#endif
    socklen_t len = sizeof(saddr);

#ifdef INET6
    if (getpeername(SHIN, (struct sockaddr *) &saddr, &len) != -1 &&
	(saddr.ss_family == AF_INET6 || saddr.ss_family == AF_INET)) {
	int flag = NI_NUMERICHOST;

#ifdef NI_WITHSCOPEID
	flag |= NI_WITHSCOPEID;
#endif
	getnameinfo((struct sockaddr *)&saddr, len, hbuf, sizeof(hbuf),
		    NULL, 0, flag);
	host = hbuf;
#else
    if (getpeername(SHIN, (struct sockaddr *) &saddr, &len) != -1 &&
	saddr.sin_family == AF_INET) {
#if 0
	if ((hp = gethostbyaddr((char *)&saddr.sin_addr, sizeof(struct in_addr),
				AF_INET)) != NULL)
	    host = hp->h_name;
	else
#endif
	    host = inet_ntoa(saddr.sin_addr);
#endif
    }
#ifdef HAVE_STRUCT_UTMP_UT_HOST
    else {
	char *ptr;
	char *name = utmphost();
	/* Avoid empty names and local X displays */
	if (name != NULL && *name != '\0' && *name != ':') {
	    struct in_addr addr;
	    char *sptr;

	    /* Look for host:display.screen */
	    /*
	     * There is conflict with IPv6 address and X DISPLAY.  So,
	     * we assume there is no IPv6 address in utmp and don't
	     * touch here.
	     */
	    if ((sptr = strchr(name, ':')) != NULL)
		*sptr = '\0';
	    /* Leave IPv4 address as is */
	    /*
	     * we use inet_addr here, not inet_aton because many systems
	     * have not caught up yet.
	     */
	    addr.s_addr = inet_addr(name);
	    if (addr.s_addr != (unsigned int)~0)
		host = name;
	    else {
		if (sptr != name) {
#ifdef INET6
		    char *s, *domain;
		    char dbuf[MAXHOSTNAMELEN];
		    struct addrinfo hints, *res = NULL;

		    memset(&hints, 0, sizeof(hints));
		    hints.ai_family = PF_UNSPEC;
		    hints.ai_socktype = SOCK_STREAM;
		    hints.ai_flags = AI_PASSIVE | AI_CANONNAME;
		    if (strlen(name) < utmphostsize())
		    {
			if (getaddrinfo(name, NULL, &hints, &res) != 0)
			    res = NULL;
		    } else if (gethostname(dbuf, sizeof(dbuf)) == 0 &&
			       (dbuf[sizeof(dbuf)-1] = '\0', /*FIXME: ugly*/
				(domain = strchr(dbuf, '.')) != NULL)) {
			for (s = strchr(name, '.');
			     s != NULL; s = strchr(s + 1, '.')) {
			    if (*(s + 1) != '\0' &&
				(ptr = strstr(domain, s)) != NULL) {
			        char *cbuf;

				cbuf = strspl(name, ptr + strlen(s));
				if (getaddrinfo(cbuf, NULL, &hints, &res) != 0)
				    res = NULL;
				xfree(cbuf);
				break;
			    }
			}
		    }
		    if (res != NULL) {
			if (res->ai_canonname != NULL) {
			    strncpy(hbuf, res->ai_canonname, sizeof(hbuf));
			    hbuf[sizeof(hbuf) - 1] = '\0';
			    host = hbuf;
			}
			freeaddrinfo(res);
		    }
#else
		    if ((hp = gethostbyname(name)) == NULL) {
			/* Try again eliminating the trailing domain */
			if ((ptr = strchr(name, '.')) != NULL) {
			    *ptr = '\0';
			    if ((hp = gethostbyname(name)) != NULL)
				host = hp->h_name;
			    *ptr = '.';
			}
		    }
		    else
			host = hp->h_name;
#endif
		}
	    }
	}
    }
#endif

    if (host) {
	size_t left;

	left = strlen(host);
	while (left != 0) {
	    ssize_t res;

	    res = xwrite(dest_fd, host, left);
	    if (res < 0)
		_exit(1);
	    host += res;
	    left -= res;
	}
    }
    _exit(0);
}

/*
 * From: <lesv@ppvku.ericsson.se> (Lennart Svensson)
 */
void
remotehost(void)
{
    struct sigaction sa;
    struct strbuf hostname = strbuf_INIT;
    int fds[2], wait_options, status;
    pid_t pid, wait_res;

    sa.sa_handler = SIG_DFL; /* Make sure a zombie is created */
    sigemptyset(&sa.sa_mask);
    sa.sa_flags = 0;
    sigaction(SIGCHLD, &sa, NULL);
    mypipe(fds);
    pid = fork();
    if (pid == 0) {
	sigset_t set;
	xclose(fds[0]);
	/* Don't get stuck if the resolver does not work! */
	signal(SIGALRM, palarm);
	sigemptyset(&set);
	sigaddset(&set, SIGALRM);
	(void)sigprocmask(SIG_UNBLOCK, &set, NULL);
	(void)alarm(2);
	getremotehost(fds[1]);
	/*NOTREACHED*/
    }
    xclose(fds[1]);
    for (;;) {
	char buf[BUFSIZE];
	ssize_t res;

	res = xread(fds[0], buf, sizeof(buf));
	if (res == -1) {
	    hostname.len = 0;
	    wait_options = WNOHANG;
	    goto done;
	}
	if (res == 0)
	    break;
	strbuf_appendn(&hostname, buf, res);
    }
    wait_options = 0;
 done:
    cleanup_push(&hostname, strbuf_cleanup);
    xclose(fds[0]);
    while ((wait_res = waitpid(pid, &status, wait_options)) == -1
	   && errno == EINTR)
	handle_pending_signals();
    if (hostname.len > 0 && wait_res == pid && WIFEXITED(status)
	   && WEXITSTATUS(status) == 0) {
	strbuf_terminate(&hostname);
	tsetenv(STRREMOTEHOST, str2short(hostname.s));
    }
    cleanup_until(&hostname);

#ifdef YPBUGS
    /* From: casper@fwi.uva.nl (Casper H.S. Dik), for Solaris 2.3 */
    fix_yp_bugs();
#endif /* YPBUGS */

}
#endif /* REMOTEHOST */

#ifndef WINNT_NATIVE
/*
 * indicate if a terminal type is defined in terminfo/termcap
 * (by default the current term type). This allows ppl to look
 * for a working term type automatically in their login scripts
 * when using a terminal known as different things on different
 * platforms
 */
void
dotermname(Char **v, struct command *c)
{
    char *termtype;
    /*
     * Maximum size of a termcap record. We make it twice as large.
     */
    char termcap_buffer[2048];

    USE(c);
    /* try to find which entry we should be looking for */
    termtype = (v[1] == NULL ? getenv("TERM") : short2str(v[1]));
    if (termtype == NULL) {
	/* no luck - the user didn't provide one and none is 
	 * specified in the environment
	 */
	setcopy(STRstatus, STR1, VAR_READWRITE);
	return;
    }

    /*
     * we use the termcap function - if we are using terminfo we 
     * will end up with it's compatibility function
     * terminfo/termcap will be initialized with the new
     * type but we don't care because tcsh has cached all the things
     * it needs.
     */
    if (tgetent(termcap_buffer, termtype) == 1) {
	xprintf("%s\n", termtype);
	setcopy(STRstatus, STR0, VAR_READWRITE);
    } else
	setcopy(STRstatus, STR1, VAR_READWRITE);
}
#endif /* WINNT_NATIVE */
OpenPOWER on IntegriCloud