2 * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 free_primitive (const char *typename, const char *name)
41 fprintf (codefile, "der_free_%s(%s);\n", typename, name);
45 free_type (const char *name, const Type *t, int preserve)
50 free_type (name, t->symbol->type, preserve);
52 fprintf (codefile, "free_%s(%s);\n", t->symbol->gen_name, name);
55 if (t->range == NULL && t->members == NULL) {
56 free_primitive ("heim_integer", name);
62 case TGeneralizedTime:
65 * This doesn't do much, but it leaves zeros where garbage might
66 * otherwise have been found. Gets us closer to having the equivalent
67 * of a memset()-to-zero data structure after calling the free
70 fprintf(codefile, "*%s = 0;\n", name);
73 if (ASN1_TAILQ_EMPTY(t->members))
74 free_primitive("bit_string", name);
77 free_primitive ("octet_string", name);
82 Member *m, *have_ellipsis = NULL;
84 if (t->members == NULL)
87 if ((t->type == TSequence || t->type == TChoice) && preserve)
88 fprintf(codefile, "der_free_octet_string(&data->_save);\n");
90 if(t->type == TChoice)
91 fprintf(codefile, "switch((%s)->element) {\n", name);
93 ASN1_TAILQ_FOREACH(m, t->members, members) {
101 if(t->type == TChoice)
102 fprintf(codefile, "case %s:\n", m->label);
103 if (asprintf (&s, "%s(%s)->%s%s",
104 m->optional ? "" : "&", name,
105 t->type == TChoice ? "u." : "", m->gen_name) < 0 || s == NULL)
108 fprintf(codefile, "if(%s) {\n", s);
109 free_type (s, m->type, FALSE);
116 if(t->type == TChoice)
117 fprintf(codefile, "break;\n");
120 if(t->type == TChoice) {
124 "der_free_octet_string(&(%s)->u.%s);\n"
126 have_ellipsis->label,
127 name, have_ellipsis->gen_name);
128 fprintf(codefile, "}\n");
136 fprintf (codefile, "while((%s)->len){\n", name);
137 if (asprintf (&n, "&(%s)->val[(%s)->len-1]", name, name) < 0 || n == NULL)
139 free_type(n, t->subtype, FALSE);
146 "(%s)->val = NULL;\n", name, name);
151 free_primitive ("general_string", name);
154 free_primitive ("general_string", name);
157 free_primitive ("utf8string", name);
159 case TPrintableString:
160 free_primitive ("printable_string", name);
163 free_primitive ("ia5_string", name);
166 free_primitive ("bmp_string", name);
168 case TUniversalString:
169 free_primitive ("universal_string", name);
172 free_primitive ("visible_string", name);
175 free_type (name, t->subtype, preserve);
178 free_primitive ("oid", name);
186 generate_type_free (const Symbol *s)
188 int preserve = preserve_type(s->name) ? TRUE : FALSE;
190 fprintf (codefile, "void ASN1CALL\n"
191 "free_%s(%s *data)\n"
193 s->gen_name, s->gen_name);
195 free_type ("data", s->type, preserve);
196 fprintf (codefile, "}\n\n");