6937d41a02
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@23815 ec53bebd-3082-4978-b11e-865c3cabbd6b
141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
/*
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* Copyright (c) 1997, 1999, 2000, 2003 - 2005 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "gen_locl.h"
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RCSID("$Id$");
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static void
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generate_2int (const Type *t, const char *gen_name)
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{
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Member *m;
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fprintf (headerfile,
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"unsigned %s2int(%s);\n",
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gen_name, gen_name);
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fprintf (codefile,
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"unsigned %s2int(%s f)\n"
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"{\n"
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"unsigned r = 0;\n",
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gen_name, gen_name);
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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fprintf (codefile, "if(f.%s) r |= (1U << %d);\n",
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m->gen_name, m->val);
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}
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fprintf (codefile, "return r;\n"
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"}\n\n");
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}
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static void
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generate_int2 (const Type *t, const char *gen_name)
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{
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Member *m;
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fprintf (headerfile,
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"%s int2%s(unsigned);\n",
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gen_name, gen_name);
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fprintf (codefile,
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"%s int2%s(unsigned n)\n"
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"{\n"
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"\t%s flags;\n\n",
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gen_name, gen_name, gen_name);
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if(t->members) {
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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fprintf (codefile, "\tflags.%s = (n >> %d) & 1;\n",
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m->gen_name, m->val);
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}
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}
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fprintf (codefile, "\treturn flags;\n"
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"}\n\n");
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}
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/*
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* This depends on the bit string being declared in increasing order
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*/
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static void
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generate_units (const Type *t, const char *gen_name)
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{
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Member *m;
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fprintf (headerfile,
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"const struct units * asn1_%s_units(void);",
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gen_name);
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fprintf (codefile,
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"static struct units %s_units[] = {\n",
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gen_name);
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if(t->members) {
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ASN1_TAILQ_FOREACH_REVERSE(m, t->members, memhead, members) {
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fprintf (codefile,
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"\t{\"%s\",\t1U << %d},\n", m->gen_name, m->val);
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}
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}
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fprintf (codefile,
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"\t{NULL,\t0}\n"
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"};\n\n");
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fprintf (codefile,
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"const struct units * asn1_%s_units(void){\n"
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"return %s_units;\n"
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"}\n\n",
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gen_name, gen_name);
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}
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void
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generate_glue (const Type *t, const char *gen_name)
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{
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switch(t->type) {
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case TTag:
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generate_glue(t->subtype, gen_name);
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break;
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case TBitString :
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if (!ASN1_TAILQ_EMPTY(t->members)) {
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generate_2int (t, gen_name);
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generate_int2 (t, gen_name);
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generate_units (t, gen_name);
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}
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break;
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default :
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break;
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}
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}
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