1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) Index Data
3 * See the file LICENSE for details.
4 */
5
6 /**
7 * \file odr_bit.c
8 * \brief Implements ODR BITSTRING codec
9 */
10
11 #if HAVE_CONFIG_H
12 #include <config.h>
13 #endif
14
15 #include <string.h>
16 #include "odr-priv.h"
17
18 /*
19 * Top level bitstring string en/decoder.
20 * Returns 1 on success, 0 on error.
21 */
odr_bitstring(ODR o,Odr_bitmask ** p,int opt,const char * name)22 int odr_bitstring(ODR o, Odr_bitmask **p, int opt, const char *name)
23 {
24 int res, cons = 0;
25
26 if (o->error)
27 return 0;
28 if (o->op->t_class < 0)
29 {
30 o->op->t_class = ODR_UNIVERSAL;
31 o->op->t_tag = ODR_BITSTRING;
32 }
33 res = ber_tag(o, p, o->op->t_class, o->op->t_tag, &cons, opt, name);
34 if (res < 0)
35 return 0;
36 if (!res)
37 return odr_missing(o, opt, name);
38 if (o->direction == ODR_PRINT)
39 {
40 int i = ODR_BITMASK_SIZE;
41 int j;
42 odr_prname(o, name);
43 odr_printf(o, "BITSTRING(len=%d) ",(*p)->top + 1);
44 while (--i > 0)
45 if (ODR_MASK_GET(*p, i))
46 break;
47 for (j = 0; j <= i; j++)
48 {
49 odr_printf(o, "%c", ODR_MASK_GET(*p, j) ? '1' : '0');
50 if (j && ((j+1)&7) == 0)
51 odr_printf(o, "-");
52 }
53 odr_printf(o, "\n");
54 return 1;
55 }
56 if (o->direction == ODR_DECODE)
57 {
58 *p = (Odr_bitmask *)odr_malloc(o, sizeof(Odr_bitmask));
59 memset((*p)->bits, 0, ODR_BITMASK_SIZE);
60 (*p)->top = -1;
61 }
62 #if 0
63 /* ignoring the cons helps with at least one target.
64 * http://bugzilla.indexdata.dk/cgi-bin/bugzilla/show_bug.cgi?id=24
65 */
66 return ber_bitstring(o, *p, 0);
67 #else
68 return ber_bitstring(o, *p, cons);
69 #endif
70 }
71 /*
72 * Local variables:
73 * c-basic-offset: 4
74 * c-file-style: "Stroustrup"
75 * indent-tabs-mode: nil
76 * End:
77 * vim: shiftwidth=4 tabstop=8 expandtab
78 */
79
80