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/*
* Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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 "gen_locl.h"
RCSID("$Id$");
static void
free_primitive (const char *typename, const char *name)
{
fprintf (codefile, "der_free_%s(%s);\n", typename, name);
}
static void
free_type (const char *name, const Type *t, int preserve)
{
switch (t->type) {
case TType:
#if 0
free_type (name, t->symbol->type, preserve);
#endif
fprintf (codefile, "free_%s(%s);\n", t->symbol->gen_name, name);
break;
case TInteger:
if (t->range == NULL && t->members == NULL) {
free_primitive ("heim_integer", name);
break;
}
case TBoolean:
case TEnumerated :
case TNull:
case TGeneralizedTime:
case TUTCTime:
break;
case TBitString:
if (ASN1_TAILQ_EMPTY(t->members))
free_primitive("bit_string", name);
break;
case TOctetString:
free_primitive ("octet_string", name);
break;
case TChoice:
case TSet:
case TSequence: {
Member *m, *have_ellipsis = NULL;
if (t->members == NULL)
break;
if ((t->type == TSequence || t->type == TChoice) && preserve)
fprintf(codefile, "der_free_octet_string(&data->_save);\n");
if(t->type == TChoice)
fprintf(codefile, "switch((%s)->element) {\n", name);
ASN1_TAILQ_FOREACH(m, t->members, members) {
char *s;
if (m->ellipsis){
have_ellipsis = m;
continue;
}
if(t->type == TChoice)
fprintf(codefile, "case %s:\n", m->label);
asprintf (&s, "%s(%s)->%s%s",
m->optional ? "" : "&", name,
t->type == TChoice ? "u." : "", m->gen_name);
if (s == NULL)
errx(1, "malloc");
if(m->optional)
fprintf(codefile, "if(%s) {\n", s);
free_type (s, m->type, FALSE);
if(m->optional)
fprintf(codefile,
"free(%s);\n"
"%s = NULL;\n"
"}\n",s, s);
free (s);
if(t->type == TChoice)
fprintf(codefile, "break;\n");
}
if(t->type == TChoice) {
if (have_ellipsis)
fprintf(codefile,
"case %s:\n"
"der_free_octet_string(&(%s)->u.%s);\n"
"break;",
have_ellipsis->label,
name, have_ellipsis->gen_name);
fprintf(codefile, "}\n");
}
break;
}
case TSetOf:
case TSequenceOf: {
char *n;
fprintf (codefile, "while((%s)->len){\n", name);
asprintf (&n, "&(%s)->val[(%s)->len-1]", name, name);
if (n == NULL)
errx(1, "malloc");
free_type(n, t->subtype, FALSE);
fprintf(codefile,
"(%s)->len--;\n"
"}\n",
name);
fprintf(codefile,
"free((%s)->val);\n"
"(%s)->val = NULL;\n", name, name);
free(n);
break;
}
case TGeneralString:
free_primitive ("general_string", name);
break;
case TUTF8String:
free_primitive ("utf8string", name);
break;
case TPrintableString:
free_primitive ("printable_string", name);
break;
case TIA5String:
free_primitive ("ia5_string", name);
break;
case TBMPString:
free_primitive ("bmp_string", name);
break;
case TUniversalString:
free_primitive ("universal_string", name);
break;
case TVisibleString:
free_primitive ("visible_string", name);
break;
case TTag:
free_type (name, t->subtype, preserve);
break;
case TOID :
free_primitive ("oid", name);
break;
default :
abort ();
}
}
void
generate_type_free (const Symbol *s)
{
int preserve = preserve_type(s->name) ? TRUE : FALSE;
fprintf (headerfile,
"void free_%s (%s *);\n",
s->gen_name, s->gen_name);
fprintf (codefile, "void\n"
"free_%s(%s *data)\n"
"{\n",
s->gen_name, s->gen_name);
free_type ("data", s->type, preserve);
fprintf (codefile, "}\n\n");
}
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