155682Smarkm/* 2233294Sstas * Copyright (c) 1997, 1999, 2000, 2003 - 2005 Kungliga Tekniska H��gskolan 3233294Sstas * (Royal Institute of Technology, Stockholm, Sweden). 4233294Sstas * All rights reserved. 555682Smarkm * 6233294Sstas * Portions Copyright (c) 2009 Apple Inc. All rights reserved. 755682Smarkm * 8233294Sstas * Redistribution and use in source and binary forms, with or without 9233294Sstas * modification, are permitted provided that the following conditions 10233294Sstas * are met: 1155682Smarkm * 12233294Sstas * 1. Redistributions of source code must retain the above copyright 13233294Sstas * notice, this list of conditions and the following disclaimer. 1455682Smarkm * 15233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 16233294Sstas * notice, this list of conditions and the following disclaimer in the 17233294Sstas * documentation and/or other materials provided with the distribution. 1855682Smarkm * 19233294Sstas * 3. Neither the name of the Institute nor the names of its contributors 20233294Sstas * may be used to endorse or promote products derived from this software 21233294Sstas * without specific prior written permission. 22233294Sstas * 23233294Sstas * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24233294Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25233294Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26233294Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27233294Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28233294Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29233294Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30233294Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31233294Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32233294Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33233294Sstas * SUCH DAMAGE. 3455682Smarkm */ 3555682Smarkm 3655682Smarkm#include "gen_locl.h" 3755682Smarkm 38233294SstasRCSID("$Id$"); 3955682Smarkm 4055682Smarkmstatic void 41178825Sdfrgenerate_2int (const Type *t, const char *gen_name) 4255682Smarkm{ 4355682Smarkm Member *m; 4455682Smarkm 4555682Smarkm fprintf (headerfile, 4655682Smarkm "unsigned %s2int(%s);\n", 47178825Sdfr gen_name, gen_name); 4855682Smarkm 4955682Smarkm fprintf (codefile, 5055682Smarkm "unsigned %s2int(%s f)\n" 5155682Smarkm "{\n" 5255682Smarkm "unsigned r = 0;\n", 53178825Sdfr gen_name, gen_name); 5455682Smarkm 55178825Sdfr ASN1_TAILQ_FOREACH(m, t->members, members) { 5655682Smarkm fprintf (codefile, "if(f.%s) r |= (1U << %d);\n", 5755682Smarkm m->gen_name, m->val); 5855682Smarkm } 5955682Smarkm fprintf (codefile, "return r;\n" 6055682Smarkm "}\n\n"); 6155682Smarkm} 6255682Smarkm 6355682Smarkmstatic void 64178825Sdfrgenerate_int2 (const Type *t, const char *gen_name) 6555682Smarkm{ 6655682Smarkm Member *m; 6755682Smarkm 6855682Smarkm fprintf (headerfile, 6955682Smarkm "%s int2%s(unsigned);\n", 70178825Sdfr gen_name, gen_name); 7155682Smarkm 7255682Smarkm fprintf (codefile, 7355682Smarkm "%s int2%s(unsigned n)\n" 7455682Smarkm "{\n" 75233294Sstas "\t%s flags;\n\n" 76233294Sstas "\tmemset(&flags, 0, sizeof(flags));\n\n", 77178825Sdfr gen_name, gen_name, gen_name); 7855682Smarkm 79178825Sdfr if(t->members) { 80178825Sdfr ASN1_TAILQ_FOREACH(m, t->members, members) { 81178825Sdfr fprintf (codefile, "\tflags.%s = (n >> %d) & 1;\n", 82178825Sdfr m->gen_name, m->val); 83178825Sdfr } 8455682Smarkm } 8555682Smarkm fprintf (codefile, "\treturn flags;\n" 8655682Smarkm "}\n\n"); 8755682Smarkm} 8855682Smarkm 8955682Smarkm/* 9055682Smarkm * This depends on the bit string being declared in increasing order 9155682Smarkm */ 9255682Smarkm 9355682Smarkmstatic void 94178825Sdfrgenerate_units (const Type *t, const char *gen_name) 9555682Smarkm{ 9655682Smarkm Member *m; 9755682Smarkm 98233294Sstas if (template_flag) { 99233294Sstas fprintf (headerfile, 100233294Sstas "extern const struct units *asn1_%s_table_units;\n", 101233294Sstas gen_name); 102233294Sstas fprintf (headerfile, "#define asn1_%s_units() (asn1_%s_table_units)\n", 103233294Sstas gen_name, gen_name); 104233294Sstas } else { 105233294Sstas fprintf (headerfile, 106233294Sstas "const struct units * asn1_%s_units(void);\n", 107233294Sstas gen_name); 108233294Sstas } 10955682Smarkm 11055682Smarkm fprintf (codefile, 111178825Sdfr "static struct units %s_units[] = {\n", 112178825Sdfr gen_name); 11355682Smarkm 114178825Sdfr if(t->members) { 115178825Sdfr ASN1_TAILQ_FOREACH_REVERSE(m, t->members, memhead, members) { 11655682Smarkm fprintf (codefile, 117233294Sstas "\t{\"%s\",\t1U << %d},\n", m->name, m->val); 11855682Smarkm } 119178825Sdfr } 12055682Smarkm 12155682Smarkm fprintf (codefile, 12255682Smarkm "\t{NULL,\t0}\n" 12355682Smarkm "};\n\n"); 124178825Sdfr 125233294Sstas if (template_flag) 126233294Sstas fprintf (codefile, 127233294Sstas "const struct units * asn1_%s_table_units = %s_units;\n", 128233294Sstas gen_name, gen_name); 129233294Sstas else 130233294Sstas fprintf (codefile, 131233294Sstas "const struct units * asn1_%s_units(void){\n" 132233294Sstas "return %s_units;\n" 133233294Sstas "}\n\n", 134233294Sstas gen_name, gen_name); 135178825Sdfr 136178825Sdfr 13755682Smarkm} 13855682Smarkm 13955682Smarkmvoid 140178825Sdfrgenerate_glue (const Type *t, const char *gen_name) 14155682Smarkm{ 142178825Sdfr switch(t->type) { 143178825Sdfr case TTag: 144178825Sdfr generate_glue(t->subtype, gen_name); 145178825Sdfr break; 14655682Smarkm case TBitString : 147178825Sdfr if (!ASN1_TAILQ_EMPTY(t->members)) { 148178825Sdfr generate_2int (t, gen_name); 149178825Sdfr generate_int2 (t, gen_name); 150178825Sdfr generate_units (t, gen_name); 151178825Sdfr } 15255682Smarkm break; 15355682Smarkm default : 15455682Smarkm break; 15555682Smarkm } 15655682Smarkm} 157