summaryrefslogtreecommitdiffstats
path: root/tools/h5ls.c
blob: 4e21cca1fae1d2ff00577aed31fd1a211119178e (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
/*
 * Copyright (C) 1998 NCSA
 *                    All rights reserved.
 *
 * Programmer:  Robb Matzke <matzke@llnl.gov>
 *              Monday, March 23, 1998
 */


/*
 * We include the private header file so we can get to the uniform
 * programming environment it declares.
 */
#include <H5private.h>
#include <h5tools.h>

#ifndef HAVE_ATTRIBUTE
#   undef __attribute__
#   define __attribute__(X) /*void*/
#   define __unused__ /*void*/
#else
#   define __unused__ __attribute__((unused))
#endif

/* Command-line switches */
static int verbose_g = 0;		/*lots of extra output		     */
static int width_g = 80;		/*output width in characters	     */
static hbool_t dump_g = FALSE;		/*display dataset values?	     */
static hbool_t label_g = FALSE;		/*label compound values?	     */
static hbool_t string_g = FALSE;	/*print 1-byte numbers as ASCII?     */

/* Information about how to display each type of object */
static struct dispatch_t {
    const char	*name;
    hid_t	(*open)(hid_t loc, const char *name);
    herr_t	(*close)(hid_t obj);
    herr_t	(*list1)(hid_t obj);
    herr_t	(*list2)(hid_t obj);
} dispatch_g[H5G_NTYPES];

#define DISPATCH(TYPE,NAME,OPEN,CLOSE,LIST1,LIST2) {			      \
    dispatch_g[TYPE].name = (NAME);					      \
    dispatch_g[TYPE].open = (OPEN);					      \
    dispatch_g[TYPE].close = (CLOSE);					      \
    dispatch_g[TYPE].list1 = (LIST1);					      \
    dispatch_g[TYPE].list2 = (LIST2);					      \
}

static herr_t list (hid_t group, const char *name, void *cd);
static void display_type(hid_t type, int indent);


/*-------------------------------------------------------------------------
 * Function:	usage
 *
 * Purpose:	Prints a usage message on stderr and then returns.
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Thursday, July 16, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
usage (const char *progname)
{
    fprintf(stderr, "\
usage: %s [OPTIONS] FILE [OBJECTS...]\n\
   OPTIONS\n\
      -h, -?, --help   Print a usage message and exit\n\
      -d, --dump       Print the values of datasets\n\
      -l, --label      Label members of compound datasets\n\
      -s, --string     Print 1-byte integer datasets as ASCII\n\
      -wN, --width=N   Set the number of columns of output\n\
      -v, --verbose    Generate more verbose output\n\
      -V, --version    Print version number and exit\n\
   FILE\n\
      The file name may include a printf(3C) integer format such as\n\
      \"%%05d\" to open a file family.\n\
   OBJECTS\n\
      The names of zero or more objects about which information should be\n\
      displayed.  If a group is mentioned then information about each of its\n\
      members is displayed.  If no object names are specified then\n\
      information about all of the objects in the root group is displayed.\n",
	    progname);
}


/*-------------------------------------------------------------------------
 * Function:	display_string
 *
 * Purpose:	Print a string value by escaping unusual characters.
 *
 * Return:	Number of characters printed.
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
display_string(const char *s)
{
    int		nprint=0;
    
    for (/*void*/; s && *s; s++) {
	switch (*s) {
	case '"':
	    printf("\\\"");
	    nprint += 2;
	    break;
	case '\\':
	    printf("\\\\");
	    nprint += 2;
	    break;
	case '\b':
	    printf("\\b");
	    nprint += 2;
	    break;
	case '\f':
	    printf("\\f");
	    nprint += 2;
	    break;
	case '\n':
	    printf("\\n");
	    nprint += 2;
	    break;
	case '\r':
	    printf("\\r");
	    nprint += 2;
	    break;
	case '\t':
	    printf("\\t");
	    nprint += 2;
	    break;
	default:
	    if (isprint(*s)) {
		putchar(*s);
		nprint++;
	    } else {
		printf("\\%03o", *((const unsigned char*)s));
		nprint += 4;
	    }
	    break;
	}
    }
    return nprint;
}


/*-------------------------------------------------------------------------
 * Function:	display_native_type
 *
 * Purpose:	Prints the name of a native C data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed.
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_native_type(hid_t type, int __unused__ indent)
{
    if (H5Tequal(type, H5T_NATIVE_CHAR)) {
	printf("native char");
    } else if (H5Tequal(type, H5T_NATIVE_UCHAR)) {
	printf("native unsigned char");
    } else if (H5Tequal(type, H5T_NATIVE_INT)) {
	printf("native int");
    } else if (H5Tequal(type, H5T_NATIVE_UINT)) {
	printf("native unsigned int");
    } else if (H5Tequal(type, H5T_NATIVE_SHORT)) {
	printf("native short");
    } else if (H5Tequal(type, H5T_NATIVE_USHORT)) {
	printf("native unsigned short");
    } else if (H5Tequal(type, H5T_NATIVE_LONG)) {
	printf("native long");
    } else if (H5Tequal(type, H5T_NATIVE_ULONG)) {
	printf("native unsigned long");
    } else if (H5Tequal(type, H5T_NATIVE_LLONG)) {
	printf("native long long");
    } else if (H5Tequal(type, H5T_NATIVE_ULLONG)) {
	printf("native unsigned long long");
    } else if (H5Tequal(type, H5T_NATIVE_FLOAT)) {
	printf("native float");
    } else if (H5Tequal(type, H5T_NATIVE_DOUBLE)) {
	printf("native double");
    } else if (H5Tequal(type, H5T_NATIVE_LDOUBLE)) {
	printf("native long double");
    } else if (H5Tequal(type, H5T_NATIVE_B8)) {
	printf("native 8-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_B16)) {
	printf("native 16-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_B32)) {
	printf("native 32-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_B64)) {
	printf("native 64-bit field");
    } else if (H5Tequal(type, H5T_NATIVE_HSIZE)) {
	printf("native hsize_t");
    } else if (H5Tequal(type, H5T_NATIVE_HSSIZE)) {
	printf("native hssize_t");
    } else if (H5Tequal(type, H5T_NATIVE_HERR)) {
	printf("native herr_t");
    } else if (H5Tequal(type, H5T_NATIVE_HBOOL)) {
	printf("native hbool_t");
    } else {
	return FALSE;
    }
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_ieee_type
 *
 * Purpose:	Print the name of an IEEE floating-point data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_ieee_type(hid_t type, int __unused__ indent)
{
    if (H5Tequal(type, H5T_IEEE_F32BE)) {
	printf("IEEE 32-bit big-endian float");
    } else if (H5Tequal(type, H5T_IEEE_F32LE)) {
	printf("IEEE 32-bit little-endian float");
    } else if (H5Tequal(type, H5T_IEEE_F64BE)) {
	printf("IEEE 64-bit big-endian float");
    } else if (H5Tequal(type, H5T_IEEE_F64LE)) {
	printf("IEEE 64-bit little-endian float");
    } else {
	return FALSE;
    }
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_precision
 *
 * Purpose:	Prints information on the next line about precision and
 *		padding if the precision is less than the total data type
 *		size.
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
display_precision(hid_t type, int indent)
{
    size_t		prec;		/*precision			*/
    H5T_pad_t		plsb, pmsb;	/*lsb and msb padding		*/
    const char		*plsb_s=NULL;	/*lsb padding string		*/
    const char		*pmsb_s=NULL;	/*msb padding string		*/
    size_t		nbits;		/*number of bits		*/

    /*
     * If the precision is less than the total size then show the precision
     * and offset on the following line.  Also display the padding
     * information.
     */
    if (8*H5Tget_size(type)!=(prec=H5Tget_precision(type))) {
	printf("\n%*s(%lu bit%s of precision beginning at bit %lu)",
	       indent, "", (unsigned long)prec, 1==prec?"":"s",
	       (unsigned long)H5Tget_offset(type));

	H5Tget_pad(type, &plsb, &pmsb);
	if (H5Tget_offset(type)>0) {
	    switch (plsb) {
	    case H5T_PAD_ZERO:
		plsb_s = "zero";
		break;
	    case H5T_PAD_ONE:
		plsb_s = "one";
		break;
	    case H5T_PAD_BACKGROUND:
		plsb_s = "bkg";
		break;
	    case H5T_PAD_ERROR:
	    case H5T_NPAD:
		plsb_s = "unknown";
		break;
	    }
	}
	if (H5Tget_offset(type)+prec<8*H5Tget_size(type)) {
	    switch (pmsb) {
	    case H5T_PAD_ZERO:
		pmsb_s = "zero";
		break;
	    case H5T_PAD_ONE:
		pmsb_s = "one";
		break;
	    case H5T_PAD_BACKGROUND:
		pmsb_s = "bkg";
		break;
	    case H5T_PAD_ERROR:
	    case H5T_NPAD:
		pmsb_s = "unknown";
		break;
	    }
	}
	if (plsb_s || pmsb_s) {
	    printf("\n%*s(", indent, "");
	    if (plsb_s) {
		nbits = H5Tget_offset(type);
		printf("%lu %s bit%s at bit 0",
		       (unsigned long)nbits, plsb_s, 1==nbits?"":"s");
	    }
	    if (plsb_s && pmsb_s) printf(", ");
	    if (pmsb_s) {
		nbits = 8*H5Tget_size(type)-(H5Tget_offset(type)+prec);
		printf("%lu %s bit%s at bit %lu",
		       (unsigned long)nbits, pmsb_s, 1==nbits?"":"s",
		       (unsigned long)(8*H5Tget_size(type)-nbits));
	    }
	    printf(")");
	}
    }
}


/*-------------------------------------------------------------------------
 * Function:	display_int_type
 *
 * Purpose:	Print the name of an integer data type.  Common information
 *		like number of bits, byte order, and sign scheme appear on
 *		the first line. Additional information might appear in
 *		parentheses on the following lines.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_int_type(hid_t type, int indent)
{
    H5T_order_t		order;		/*byte order value		*/
    const char 		*order_s=NULL;	/*byte order string		*/
    H5T_sign_t		sign;		/*sign scheme value		*/
    const char		*sign_s=NULL;	/*sign scheme string		*/
    
    if (H5T_INTEGER!=H5Tget_class(type)) return FALSE;
    
    /* Byte order */
    if (H5Tget_size(type)>1) {
	order = H5Tget_order(type);
	if (H5T_ORDER_LE==order) {
	    order_s = " little-endian";
	} else if (H5T_ORDER_BE==order) {
	    order_s = " big-endian";
	} else if (H5T_ORDER_VAX==order) {
	    order_s = " mixed-endian";
	} else {
	    order_s = " unknown-byte-order";
	}
    } else {
	order_s = "";
    }

    /* Sign */
    if (H5T_SGN_NONE==sign) {
	sign_s = " unsigned";
    } else if (H5T_SGN_2==sign) {
	sign_s = "";
    } else {
	sign_s = " unknown-sign";
    }
    
    /*
     * Print size, order, and sign on first line, precision and padding
     * information on the subsequent lines
     */
    printf("%lu-bit%s%s integer",
	   (unsigned long)(8*H5Tget_size(type)), order_s, sign_s);
    display_precision(type, indent);
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_float_type
 *
 * Purpose:	Print info about a floating point data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_float_type(hid_t type, int indent)
{
    H5T_order_t		order;		/*byte order value		*/
    const char 		*order_s=NULL;	/*byte order string		*/
    size_t		spos;		/*sign bit position		*/
    size_t		esize, epos;	/*exponent size and position	*/
    size_t		msize, mpos;	/*significand size and position	*/
    size_t		ebias;		/*exponent bias			*/
    H5T_norm_t		norm;		/*significand normalization	*/
    const char		*norm_s=NULL;	/*normalization string		*/
    H5T_pad_t		pad;		/*internal padding value	*/
    const char		*pad_s=NULL;	/*internal padding string	*/
    
    if (H5T_FLOAT!=H5Tget_class(type)) return FALSE;
    
    /* Byte order */
    if (H5Tget_size(type)>1) {
	order = H5Tget_order(type);
	if (H5T_ORDER_LE==order) {
	    order_s = " little-endian";
	} else if (H5T_ORDER_BE==order) {
	    order_s = " big-endian";
	} else if (H5T_ORDER_VAX==order) {
	    order_s = " mixed-endian";
	} else {
	    order_s = " unknown-byte-order";
	}
    } else {
	order_s = "";
    }

    /*
     * Print size and byte order on first line, precision and padding on
     * subsequent lines.
     */
    printf("%lu-bit%s floating-point",
	   (unsigned long)(8*H5Tget_size(type)), order_s);
    display_precision(type, indent);

    /* Print sizes, locations, and other information about each field */
    H5Tget_fields (type, &spos, &epos, &esize, &mpos, &msize);
    ebias = H5Tget_ebias(type);
    norm = H5Tget_norm(type);
    switch (norm) {
    case H5T_NORM_IMPLIED:
	norm_s = ", msb implied";
	break;
    case H5T_NORM_MSBSET:
	norm_s = ", msb always set";
	break;
    case H5T_NORM_NONE:
	norm_s = ", no normalization";
	break;
    case H5T_NORM_ERROR:
	norm_s = ", unknown normalization";
	break;
    }
    printf("\n%*s(significant for %lu bit%s at bit %lu%s)", indent, "", 
	   (unsigned long)msize, 1==msize?"":"s", (unsigned long)mpos,
	   norm_s);
    printf("\n%*s(exponent for %lu bit%s at bit %lu, bias is 0x%lx)",
	   indent, "", (unsigned long)esize, 1==esize?"":"s",
	   (unsigned long)epos, (unsigned long)ebias);
    printf("\n%*s(sign bit at %lu)", indent, "", (unsigned long)spos);
    return TRUE;

    /* Display internal padding */
    if (1+esize+msize<H5Tget_precision(type)) {
	pad = H5Tget_inpad(type);
	switch (pad) {
	case H5T_PAD_ZERO:
	    pad_s = "zero";
	    break;
	case H5T_PAD_ONE:
	    pad_s = "one";
	    break;
	case H5T_PAD_BACKGROUND:
	    pad_s = "bkg";
	    break;
	case H5T_PAD_ERROR:
	case H5T_NPAD:
	    pad_s = "unknown";
	    break;
	}
	printf("\n%*s(internal padding bits are %s)", indent, "", pad_s);
    }
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_cmpd_type
 *
 * Purpose:	Print info about a compound data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_cmpd_type(hid_t type, int indent)
{
    char	*name=NULL;	/*member name				*/
    int		ndims;		/*dimensionality			*/
    size_t	dims[8];	/*dimensions				*/
    int		perm[8];	/*index permutation			*/
    hid_t	subtype;	/*member data type			*/
    int		i, j, n;	/*miscellaneous counters		*/
    
    
    if (H5T_COMPOUND!=H5Tget_class(type)) return FALSE;
    printf("struct {");
    for (i=0; i<H5Tget_nmembers(type); i++) {

	/* Name and offset */
	name = H5Tget_member_name(type, i);
	printf("\n%*s\"", indent+4, "");
	n = display_string(name);
	printf("\"%*s +%-4lu ", MAX(0, 16-n), "",
	       (unsigned long)H5Tget_member_offset(type, i));
	free(name);

	/* Dimensions and permutation */
	ndims = H5Tget_member_dims(type, i, dims, perm);
	if (ndims>0) {
	    printf("[");
	    for (j=0; j<ndims; j++) {
		printf("%s%lu", j?",":"", (unsigned long)(dims[j]));
	    }
	    printf("]");
	    for (j=0; j<ndims; j++) {
		if (perm[j]!=j) break;
	    }
	    if (j<ndims) {
		printf("x[");
		for (j=0; j<ndims; j++) {
		    printf("%s%d", j?",":"", perm[j]);
		}
		printf("]");
	    }
	    printf(" ");
	}
	
	/* Data type */
	subtype = H5Tget_member_type(type, i);
	display_type(subtype, indent+4);
	H5Tclose(subtype);
    }
    printf("\n%*s}", indent, "");
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_string
 *
 * Purpose:	Print information about a string data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_string_type(hid_t type, int __unused__ indent)
{
    H5T_str_t		pad;
    const char		*pad_s=NULL;
    H5T_cset_t		cset;
    const char		*cset_s=NULL;
    
    if (H5T_STRING!=H5Tget_class(type)) return FALSE;

    /* Padding */
    pad = H5Tget_strpad(type);
    switch (pad) {
    case H5T_STR_NULLTERM:
	pad_s = "null-terminated";
	break;
    case H5T_STR_NULLPAD:
	pad_s = "null-padded";
	break;
    case H5T_STR_SPACEPAD:
	pad_s = "space-padded";
	break;
    case H5T_STR_RESERVED_3:
    case H5T_STR_RESERVED_4:
    case H5T_STR_RESERVED_5:
    case H5T_STR_RESERVED_6:
    case H5T_STR_RESERVED_7:
    case H5T_STR_RESERVED_8:
    case H5T_STR_RESERVED_9:
    case H5T_STR_RESERVED_10:
    case H5T_STR_RESERVED_11:
    case H5T_STR_RESERVED_12:
    case H5T_STR_RESERVED_13:
    case H5T_STR_RESERVED_14:
    case H5T_STR_RESERVED_15:
    case H5T_STR_ERROR:
	pad_s = "unknown-format";
	break;
    }

    /* Character set */
    cset = H5Tget_cset(type);
    switch (cset) {
    case H5T_CSET_ASCII:
	cset_s = "ASCII";
	break;
    case H5T_CSET_RESERVED_1:
    case H5T_CSET_RESERVED_2:
    case H5T_CSET_RESERVED_3:
    case H5T_CSET_RESERVED_4:
    case H5T_CSET_RESERVED_5:
    case H5T_CSET_RESERVED_6:
    case H5T_CSET_RESERVED_7:
    case H5T_CSET_RESERVED_8:
    case H5T_CSET_RESERVED_9:
    case H5T_CSET_RESERVED_10:
    case H5T_CSET_RESERVED_11:
    case H5T_CSET_RESERVED_12:
    case H5T_CSET_RESERVED_13:
    case H5T_CSET_RESERVED_14:
    case H5T_CSET_RESERVED_15:
    case H5T_CSET_ERROR:
	cset_s = "unknown-character-set";
	break;
    }

    printf("%lu-byte %s %s string",
	   (unsigned long)H5Tget_size(type), pad_s, cset_s);
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_reference_type
 *
 * Purpose:	Prints information about a reference data type.
 *
 * Return:	Success:	TRUE
 *
 *		Failure:	FALSE, nothing printed
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
display_reference_type(hid_t type, int __unused__ indent)
{
    if (H5T_REFERENCE!=H5Tget_class(type)) return FALSE;

    printf("%lu-byte unknown reference",
	   (unsigned long)H5Tget_size(type));
    return TRUE;
}


/*-------------------------------------------------------------------------
 * Function:	display_type
 *
 * Purpose:	Prints a data type definition.  The definition is printed
 *		without any leading space or trailing line-feed (although
 *		there might be line-feeds inside the type definition).  The
 *		first line is assumed to have INDENT characters before it on
 *		the same line (printed by the caller).
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
display_type(hid_t type, int indent)
{
    H5T_class_t		data_class;
    
    /* Bad data type */
    if (type<0) {
	printf("<ERROR>");
	return;
    }

    /* Shared? */
    if (H5Tcommitted(type)) printf("shared ");

    /* Print the type */
    if (display_native_type(type, indent) ||
	display_ieee_type(type, indent) ||
	display_int_type(type, indent) ||
	display_float_type(type, indent) ||
	display_cmpd_type(type, indent) ||
	display_string_type(type, indent) ||
	display_reference_type(type, indent)) {
	return;
    }

    /* Unknown type */
    printf("%lu-byte class-%u unknown",
	   (unsigned long)H5Tget_size(type),
	   (unsigned)data_class);
}


/*-------------------------------------------------------------------------
 * Function:	dump_dataset_values
 *
 * Purpose:	Prints all values of a dataset.
 *
 * Return:	void
 *
 * Programmer:	Robb Matzke
 *              Tuesday, July 21, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
dump_dataset_values(hid_t dset)
{
    hid_t		f_type = H5Dget_type(dset);
    size_t		size = H5Tget_size(f_type);
    h5dump_t		info;

    /* Set to all default values and then override */
    memset(&info, 0, sizeof info);
    info.idx_fmt = "        (%s) ";
    info.line_ncols = width_g;
    if (label_g) info.cmpd_name = "%s=";

    /*
     * If the dataset is a 1-byte integer type then format it as an ASCI
     * character string instead of integers if the `-s' or `--string'
     * command-line option was given.
     */
    if (string_g && 1==size && H5T_INTEGER==H5Tget_class(f_type)) {
	info.ascii = TRUE;
	info.elmt_suf1 = "";
	info.elmt_suf2 = "";
	info.idx_fmt = "        (%s) \"";
	info.line_suf = "\"";
    }

    
    /*
     * Print all the values.
     */
    printf("    Data:\n");
    if (h5dump(stdout, &info, dset, -1)<0) {
	printf("        Unable to print data.\n");
    }

    H5Tclose(f_type);
}


/*-------------------------------------------------------------------------
 * Function:	list_attr
 *
 * Purpose:	Prints information about attributes.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Friday, June  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
list_attr (hid_t obj, const char *attr_name, void __unused__ *op_data)
{
    hid_t	attr;
    int		i;

    printf("    %-10s %-10s", "Attribute:", attr_name);
    if ((attr = H5Aopen_name (obj, attr_name))) {
	hid_t space = H5Aget_space (attr);
	hsize_t size[64];
	int ndims = H5Sget_simple_extent_dims (space, size, NULL);
	H5Sclose (space);
	printf (" {");
	for (i=0; i<ndims; i++) {
	    HDfprintf (stdout, "%s%Hu", i?", ":"", size[i]);
	}
	putchar ('}');
	H5Aclose (attr);
    }
    
    putchar ('\n');
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	dataset_list1
 *
 * Purpose:	List information about a dataset which should appear on the
 *		same line as the dataset name.  This information will precede
 *		information which is applicable to all objects which will be
 *		printed by the caller.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, August 27, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
dataset_list1(hid_t dset)
{
    hsize_t		cur_size[64];	/*current dataset dimensions	*/
    hsize_t		max_size[64];	/*maximum dataset dimensions	*/
    hid_t		space;		/*data space			*/
    int 		ndims;		/*dimensionality		*/
    int			i;

    /*
     * Information that goes on the same row as the name.  The name has
     * already been printed.
     */
    space = H5Dget_space(dset);
    ndims = H5Sget_simple_extent_dims(space, cur_size, max_size);
    printf (" {");
    for (i=0; i<ndims; i++) {
	HDfprintf (stdout, "%s%Hu", i?", ":"", cur_size[i]);
	if (max_size[i]==H5S_UNLIMITED) {
	    HDfprintf (stdout, "/%s", "Inf");
	} else if (max_size[i]!=cur_size[i] || verbose_g>0) {
	    HDfprintf(stdout, "/%Hu", max_size[i]);
	}
    }
    if (0==ndims) printf("SCALAR");
    putchar('}');
    H5Sclose (space);

    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	dataset_list2
 *
 * Purpose:	List information about a dataset which should appear after
 *		information which is general to all objects.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, August 27, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
dataset_list2(hid_t dset)
{
    hid_t		dcpl;		/*dataset creation property list*/
    hid_t		type;		/*data type of dataset		*/
    hid_t		space;		/*data space of dataset		*/
    int			nf;		/*number of filters		*/
    unsigned		filt_flags;	/*filter flags			*/
    H5Z_filter_t	filt_id;	/*filter identification number	*/
    unsigned		cd_values[20];	/*filter client data values	*/
    size_t		cd_nelmts;	/*filter client number of values*/
    size_t		cd_num;		/*filter client data counter	*/
    char		f_name[256];	/*filter/file name		*/
    char		s[64];		/*temporary string buffer	*/
    off_t		f_offset;	/*offset in external file	*/
    hsize_t		f_size;		/*bytes used in external file	*/
    hsize_t		total;		/*total size or offset		*/
    hsize_t		chsize[64];	/*chunk size in elements	*/
    int			ndims;		/*dimensionality		*/
    int			i;
    
    if (verbose_g>0) {
	dcpl = H5Dget_create_plist(dset);
	space = H5Dget_space(dset);
	type = H5Dget_type(dset);

	/* Print information about chunked storage */
	if (H5D_CHUNKED==H5Pget_layout(dcpl)) {
	    ndims = H5Pget_chunk(dcpl, NELMTS(chsize), chsize/*out*/);
	    printf("    %-10s {", "Chunks:");
	    total = H5Tget_size(type);
	    for (i=0; i<ndims; i++) {
		printf("%s%lu", i?", ":"", (unsigned long)(chsize[i]));
		total *= chsize[i];
	    }
	    printf("} %lu bytes\n", (unsigned long)total);
	}

	/* Print information about external strorage */
	if ((nf = H5Pget_external_count(dcpl))>0) {
	    printf("    %-10s %d external file%s (num/addr/offset/length)\n",
		   "Extern:", nf, 1==nf?"":"s");
	    for (i=0, total=0; i<nf; i++) {
		if (H5Pget_external(dcpl, i, sizeof(f_name), f_name, &f_offset,
				    &f_size)<0) {
		    HDfprintf(stdout,
			      "        #%03d %10Hu %10s %10s ***ERROR*** %s\n",
			      i, total, "", "",
			      i+1<nf?"Following addresses are incorrect":"");
		} else if (H5S_UNLIMITED==f_size) {
		    HDfprintf(stdout, "        #%03d %10Hu %10Hu %10s \"",
			      i, total, (hsize_t)f_offset, "INF");
		    display_string(f_name);
		} else {
		    HDfprintf(stdout, "        #%03d %10Hu %10Hu %10Hu \"",
			      i, total, (hsize_t)f_offset, f_size);
		    display_string(f_name);
		}
		printf("\"\n");
		total += f_size;
	    }
	}

	/* Print information about raw data filters */
	if ((nf = H5Pget_nfilters(dcpl))>0) {
	    for (i=0; i<nf; i++) {
		cd_nelmts = NELMTS(cd_values);
		filt_id = H5Pget_filter(dcpl, i, &filt_flags, &cd_nelmts,
					cd_values, sizeof(f_name), f_name);
		f_name[sizeof(f_name)-1] = '\0';
		sprintf(s, "Filter-%d:", i);
		printf("    %-10s %s-%u %s {", s,
		       f_name[0]?f_name:"method",
		       (unsigned)filt_id,
		       filt_flags & H5Z_FLAG_OPTIONAL?"OPT":"");
		for (cd_num=0; cd_num<cd_nelmts; cd_num++) {
		    printf("%s%u", cd_num?", ":"", cd_values[cd_num]);
		}
		printf("}\n");
	    }
	}

	/* Print data type */
	printf("    %-10s ", "Type:");
	display_type(type, 15);
	printf("\n");

	/* Close stuff */
	H5Tclose(type);
	H5Sclose(space);
	H5Pclose(dcpl);
    }

    if (dump_g) dump_dataset_values(dset);
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	datatype_list2
 *
 * Purpose:	List information about a data type which should appear after
 *		information which is general to all objects.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
datatype_list2(hid_t type)
{
    printf("    %-10s ", "Type:");
    display_type(type, 15);
    printf("\n");
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	ragged_list2
 *
 * Purpose:	List information about a ragged array which should appear
 *		after information which is general to all objects.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, November  5, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
ragged_list2(hid_t __unused__ ra)
{
    if (dump_g) {
	puts("    Data:      Not implemented yet (see values of member");
	puts("               datasets `raw', `over', and `meta')");
    }
    return -1;
}


/*-------------------------------------------------------------------------
 * Function:	link_open
 *
 * Purpose:	This gets called to open a symbolic link.  Since symbolic
 *		links don't correspond to actual objects we simply print the
 *		link information and return failure.
 *
 * Return:	Success:	never succeeds
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Thursday, August 27, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hid_t
link_open(hid_t location, const char *name)
{
    char	buf[64];
    
    if (H5Gget_linkval (location, name, sizeof(buf), buf)<0) return -1;
    if (NULL==HDmemchr(buf, 0, sizeof(buf))) {
	strcpy(buf+sizeof(buf)-4, "...");
    }
    puts(buf);

    return -1;
}


/*-------------------------------------------------------------------------
 * Function:	list
 *
 * Purpose:	Prints the group member name.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Monday, March 23, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
list (hid_t group, const char *name, void __unused__ *cd)
{
    hid_t	obj;
    char	buf[512], comment[50];
    H5G_stat_t	sb;
    struct tm	*tm;
    herr_t	status;
    
    /* Print the object name */
    printf("%-25s ", name);
    
    /* Get object information */
    H5E_BEGIN_TRY {
	status = H5Gget_objinfo(group, name, FALSE, &sb);
    } H5E_END_TRY;
    if (status<0) {
	puts("**NOT FOUND**");
	return 0;
    } else if (sb.type<0 || sb.type>=H5G_NTYPES) {
	printf("Unknown type(%d)", sb.type);
	sb.type = -1;
    }
    if (sb.type>=0 && dispatch_g[sb.type].name) {
	fputs(dispatch_g[sb.type].name, stdout);
    }

    /*
     * Open the object.  Not all objects can be opened.  If this is the case
     * then return right away.
     */
    if (sb.type>=0 &&
	(NULL==dispatch_g[sb.type].open ||
	 (obj=(dispatch_g[sb.type].open)(group, name))<0)) return 0;

    /*
     * List the first line of information for the object.
     */
    if (sb.type>=0 && dispatch_g[sb.type].list1) {
	(dispatch_g[sb.type].list1)(obj);
    }
    putchar('\n');
    
    /*
     * Show detailed information about the object, beginning with information
     * which is common to all objects.
     */
    if (verbose_g>0) {
	if (sb.type>=0) H5Aiterate(obj, NULL, list_attr, NULL);
	printf("    %-10s %lu:%lu:%lu:%lu\n", "Location:",
	       sb.fileno[1], sb.fileno[0], sb.objno[1], sb.objno[0]);
	printf("    %-10s %u\n", "Links:", sb.nlink);
	if (sb.mtime>0 && NULL!=(tm=localtime(&(sb.mtime)))) {
	    strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S %Z", tm);
	    printf("    %-10s %s\n", "Modified:", buf);
	}
	comment[0] = '\0';
	H5Gget_comment(group, name, sizeof(comment), comment);
	strcpy(comment+sizeof(comment)-4, "...");
	if (comment[0]) printf("    %-10s %s\n", "Comment:", comment);
    }
    if (sb.type>0 && dispatch_g[sb.type].list2) {
	(dispatch_g[sb.type].list2)(obj);
    }
    
    /*
     * Close the object.
     */
    if (sb.type>0) (dispatch_g[sb.type].close)(obj);
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	get_width
 *
 * Purpose:	Figure out how wide the screen is.  This is highly
 *		unportable, but the user can always override the width we
 *		detect by giving a command-line option. These code snippets
 *		were borrowed from the GNU less(1).
 *
 * Return:	Success:	Number of columns.
 *
 *		Failure:	Some default number of columms.
 *
 * Programmer:	Robb Matzke
 *              Friday, November  6, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
get_width(void)
{
    int		width = 80;		/*the default			*/
    char	*s;

    /*
     * Try to get it from the COLUMNS environment variable first since it's
     * value is sometimes wrong.
     */
    if ((s=getenv("COLUMNS")) && *s && isdigit(*s)) {
	width = strtol(s, NULL, 0);
    }

#if defined(HAVE_STRUCT_VIDEOCONFIG) && defined(HAVE__GETVIDEOCONFIG)
    {
	/* Microsoft C */
	struct videoconfig w;
	_getvideoconfig(&w);
	width = w.numtextcols;
    }
#elif defined(HAVE_STRUCT_TEXT_INFO) && defined(HAVE_GETTEXTINFO)
    {
	/* Borland C or DJGPPC */
	struct text_info w;
	gettextinfo(&w);
	width = w.screenwidth;
    }
#elif defined(HAVE_GETCONSOLESCREENBUFFERINFO)
    {
	/* Win32 C */
	CONSOLE_SCREEN_BUFFER_INFO scr;
	GetConsoleScreenBufferInfo(con_out, &scr);
	width = scr.srWindow.Right - scr.srWindow.Left + 1;
    }
#elif defined(HAVE__SCRSIZE)
    {
	/* OS/2 */
	int w[2];
	_scrsize(w);
	width = w[0];
    }
#elif defined(HAVE_TIOCGWINSZ) && defined(HAVE_IOCTL)
    {
	/* Unix with ioctl(TIOCGWINSZ) */
	struct winsize w;
	if (ioctl(2, TIOCGWINSZ, &w)>=0 && w.ws_col>0) {
	    width = w.ws_col;
	}
    }
#elif defined(HAVE_TIOCGETD) && defined(HAVE_IOCTL)
    {
	/* Unix with ioctl(TIOCGETD) */
	struct uwdata w;
	if (ioctl(2, WIOCGETD, &w)>=0 && w.uw_width>0) {
	    width = w.uw_width / w.uw_hs;
	}
    }
#endif

    /* Set to at least 1 */
    if (width<1) width = 1;
    return width;
}


/*-------------------------------------------------------------------------
 * Function:	main
 *
 * Purpose:	Opens a file and lists the specified group
 *
 * Return:	Success:	0
 *
 *		Failure:	1
 *
 * Programmer:	Robb Matzke
 *              Monday, March 23, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
int
main (int argc, char *argv[])
{
    hid_t	file, plist=H5P_DEFAULT, root;
    const char	*fname = NULL;
    const char	*progname;
    const char	*s;
    char	*rest;
    int		argno;
    H5G_stat_t	sb;

    DISPATCH(H5G_DATASET, "Dataset", H5Dopen, H5Dclose,
	     dataset_list1, dataset_list2);
    DISPATCH(H5G_GROUP, "Group", H5Gopen, H5Gclose,
	     NULL, NULL);
    DISPATCH(H5G_TYPE, "Type", H5Topen, H5Tclose,
	     NULL, datatype_list2);
    DISPATCH(H5G_LINK, "-> ", link_open, NULL,
	     NULL, NULL);
    DISPATCH(H5G_RAGGED, "Ragged Array", H5Gopen, H5Gclose,
	     NULL, ragged_list2);

    /* Name of this program without the path */
    if ((progname=strrchr (argv[0], '/'))) progname++;
    else progname = argv[0];

    /* Default output width */
    width_g = get_width();

    /* Switches come before non-switch arguments */
    for (argno=1; argno<argc && '-'==argv[argno][0]; argno++) {
	if (!strcmp(argv[argno], "--")) {
	    /* Last switch */
	    argno++;
	    break;
	} else if (!strcmp(argv[argno], "--help")) {
	    usage(progname);
	    exit(0);
	} else if (!strcmp(argv[argno], "--dump")) {
	    dump_g = TRUE;
	} else if (!strcmp(argv[argno], "--label")) {
	    label_g = TRUE;
	} else if (!strcmp(argv[argno], "--string")) {
	    string_g = TRUE;
	} else if (!strncmp(argv[argno], "--width=", 8)) {
	    width_g = strtol(argv[argno]+8, &rest, 0);
	    if (width_g<=0 || *rest) {
		usage(progname);
		exit(1);
	    }
	} else if (!strcmp(argv[argno], "--verbose")) {
	    verbose_g++;
	} else if (!strcmp(argv[argno], "--version")) {
	    printf("This is %s version %u.%u release %u\n",
		   progname, H5_VERS_MAJOR, H5_VERS_MINOR, H5_VERS_RELEASE);
	    exit(0);
	} else if (!strncmp(argv[argno], "-w", 2)) {
	    if (argv[argno][2]) {
		s = argv[argno]+2;
	    } else if (argno+1>=argc) {
		usage(progname);
		exit(1);
	    } else {
		s = argv[++argno];
	    }
	    width_g = strtol(s, &rest, 0);
	    if (width_g<=0 || *rest) {
		usage(progname);
		exit(1);
	    }
	} else if ('-'!=argv[argno][1]) {
	    /* Single-letter switches */
	    for (s=argv[argno]+1; *s; s++) {
		switch (*s) {
		case '?':
		case 'h':	/* --help */
		    usage(progname);
		    exit(0);
		case 'd':	/* --dump */
		    dump_g++;
		    break;
		case 'l':	/* --label */
		    label_g = TRUE;
		    break;
		case 's':	/* --string */
		    string_g = TRUE;
		    break;
		case 'v':	/* --verbose */
		    verbose_g++;
		    break;
		case 'V':	/* --version */
		    printf("This is %s version %u.%u release %u\n",
			   progname, H5_VERS_MAJOR, H5_VERS_MINOR,
			   H5_VERS_RELEASE);
		    exit(0);
		default:
		    usage(progname);
		    exit(1);
		}
	    }
	} else {
	    usage(progname);
	    exit(1);
	}
    }

    /*
     * The first non-switch argument is a file name.  If the file name
     * contains a `%' then assume that a file family is being opened.
     */
    if (argno<argc) {
	fname = argv[argno++];
    } else {
	usage(progname);
	exit(1);
    }
    if (strchr (fname, '%')) {
	plist = H5Pcreate (H5P_FILE_ACCESS);
	H5Pset_family (plist, 0, H5P_DEFAULT);
    }
    if ((file = H5Fopen (fname, H5F_ACC_RDONLY, plist))<0) exit (1);

    /*
     * The remaining optional arguments are the names of the objects to list.
     * If there are no arguments then list `/'.
     */
    if (argno>=argc) {
	H5Giterate(file, "/", NULL, list, NULL);
    } else {
	for (/*void*/; argno<argc; argno++) {
	    if (H5Gget_objinfo(file, argv[argno], TRUE, &sb)>=0 &&
		H5G_GROUP==sb.type) {
		H5Giterate(file, argv[argno], NULL, list, NULL);
	    } else if ((root=H5Gopen(file, "/"))<0) {
		exit(1);
	    } else {
		list(root, argv[argno], NULL);
		if (H5Gclose(root)<0) exit(1);
	    }
	}
    }

    if (H5Fclose(file)<0) exit(1);
    return 0;
}