1 : /*
2 : * Copyright (c) 1997, 1999, 2000, 2003 - 2005 Kungliga Tekniska Högskolan
3 : * (Royal Institute of Technology, Stockholm, Sweden).
4 : * All rights reserved.
5 : *
6 : * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
7 : *
8 : * Redistribution and use in source and binary forms, with or without
9 : * modification, are permitted provided that the following conditions
10 : * are met:
11 : *
12 : * 1. Redistributions of source code must retain the above copyright
13 : * notice, this list of conditions and the following disclaimer.
14 : *
15 : * 2. Redistributions in binary form must reproduce the above copyright
16 : * notice, this list of conditions and the following disclaimer in the
17 : * documentation and/or other materials provided with the distribution.
18 : *
19 : * 3. Neither the name of the Institute nor the names of its contributors
20 : * may be used to endorse or promote products derived from this software
21 : * without specific prior written permission.
22 : *
23 : * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 : * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 : * SUCH DAMAGE.
34 : */
35 :
36 : #include "gen_locl.h"
37 :
38 : RCSID("$Id$");
39 :
40 : static void
41 : generate_2int (const Type *t, const char *gen_name)
42 10 : {
43 : Member *m;
44 :
45 10 : fprintf (headerfile,
46 : "unsigned %s2int(%s);\n",
47 : gen_name, gen_name);
48 :
49 10 : fprintf (codefile,
50 : "unsigned %s2int(%s f)\n"
51 : "{\n"
52 : "unsigned r = 0;\n",
53 : gen_name, gen_name);
54 :
55 99 : ASN1_TAILQ_FOREACH(m, t->members, members) {
56 89 : fprintf (codefile, "if(f.%s) r |= (1U << %d);\n",
57 : m->gen_name, m->val);
58 : }
59 10 : fprintf (codefile, "return r;\n"
60 : "}\n\n");
61 10 : }
62 :
63 : static void
64 : generate_int2 (const Type *t, const char *gen_name)
65 10 : {
66 : Member *m;
67 :
68 10 : fprintf (headerfile,
69 : "%s int2%s(unsigned);\n",
70 : gen_name, gen_name);
71 :
72 10 : fprintf (codefile,
73 : "%s int2%s(unsigned n)\n"
74 : "{\n"
75 : "\t%s flags;\n\n"
76 : "\tmemset(&flags, 0, sizeof(flags));\n\n",
77 : gen_name, gen_name, gen_name);
78 :
79 10 : if(t->members) {
80 99 : ASN1_TAILQ_FOREACH(m, t->members, members) {
81 89 : fprintf (codefile, "\tflags.%s = (n >> %d) & 1;\n",
82 : m->gen_name, m->val);
83 : }
84 : }
85 10 : fprintf (codefile, "\treturn flags;\n"
86 : "}\n\n");
87 10 : }
88 :
89 : /*
90 : * This depends on the bit string being declared in increasing order
91 : */
92 :
93 : static void
94 : generate_units (const Type *t, const char *gen_name)
95 10 : {
96 : Member *m;
97 :
98 10 : if (template_flag) {
99 0 : fprintf (headerfile,
100 : "extern const struct units *asn1_%s_table_units;\n",
101 : gen_name);
102 0 : fprintf (headerfile, "#define asn1_%s_units() (asn1_%s_table_units)\n",
103 : gen_name, gen_name);
104 : } else {
105 10 : fprintf (headerfile,
106 : "const struct units * asn1_%s_units(void);",
107 : gen_name);
108 : }
109 :
110 10 : fprintf (codefile,
111 : "static struct units %s_units[] = {\n",
112 : gen_name);
113 :
114 10 : if(t->members) {
115 99 : ASN1_TAILQ_FOREACH_REVERSE(m, t->members, memhead, members) {
116 89 : fprintf (codefile,
117 : "\t{\"%s\",\t1U << %d},\n", m->name, m->val);
118 : }
119 : }
120 :
121 10 : fprintf (codefile,
122 : "\t{NULL,\t0}\n"
123 : "};\n\n");
124 :
125 10 : if (template_flag)
126 0 : fprintf (codefile,
127 : "const struct units * asn1_%s_table_units = %s_units;\n",
128 : gen_name, gen_name);
129 : else
130 10 : fprintf (codefile,
131 : "const struct units * asn1_%s_units(void){\n"
132 : "return %s_units;\n"
133 : "}\n\n",
134 : gen_name, gen_name);
135 :
136 :
137 10 : }
138 :
139 : void
140 : generate_glue (const Type *t, const char *gen_name)
141 566 : {
142 566 : switch(t->type) {
143 : case TTag:
144 273 : generate_glue(t->subtype, gen_name);
145 273 : break;
146 : case TBitString :
147 11 : if (!ASN1_TAILQ_EMPTY(t->members)) {
148 10 : generate_2int (t, gen_name);
149 10 : generate_int2 (t, gen_name);
150 10 : generate_units (t, gen_name);
151 : }
152 : break;
153 : default :
154 : break;
155 : }
156 566 : }
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