798 lines
20 KiB
C
798 lines
20 KiB
C
/*
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* Copyright (c) 1997 - 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: gen.c 22429 2008-01-13 10:25:50Z lha $");
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FILE *headerfile, *codefile, *logfile;
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#define STEM "asn1"
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static const char *orig_filename;
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static char *header;
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static const char *headerbase = STEM;
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/*
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* list of all IMPORTs
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*/
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struct import {
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const char *module;
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struct import *next;
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};
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static struct import *imports = NULL;
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void
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add_import (const char *module)
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{
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struct import *tmp = emalloc (sizeof(*tmp));
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tmp->module = module;
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tmp->next = imports;
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imports = tmp;
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fprintf (headerfile, "#include <%s_asn1.h>\n", module);
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}
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const char *
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get_filename (void)
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{
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return orig_filename;
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}
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void
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init_generate (const char *filename, const char *base)
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{
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char *fn;
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orig_filename = filename;
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if (base != NULL) {
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headerbase = strdup(base);
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if (headerbase == NULL)
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errx(1, "strdup");
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}
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asprintf(&header, "%s.h", headerbase);
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if (header == NULL)
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errx(1, "malloc");
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headerfile = fopen (header, "w");
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if (headerfile == NULL)
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err (1, "open %s", header);
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fprintf (headerfile,
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"/* Generated from %s */\n"
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"/* Do not edit */\n\n",
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filename);
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fprintf (headerfile,
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"#ifndef __%s_h__\n"
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"#define __%s_h__\n\n", headerbase, headerbase);
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fprintf (headerfile,
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"#include <stddef.h>\n"
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"#include <time.h>\n\n");
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fprintf (headerfile,
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"#ifndef __asn1_common_definitions__\n"
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"#define __asn1_common_definitions__\n\n");
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fprintf (headerfile,
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"typedef struct heim_integer {\n"
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" size_t length;\n"
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" void *data;\n"
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" int negative;\n"
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"} heim_integer;\n\n");
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fprintf (headerfile,
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"typedef struct heim_octet_string {\n"
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" size_t length;\n"
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" void *data;\n"
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"} heim_octet_string;\n\n");
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fprintf (headerfile,
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"typedef char *heim_general_string;\n\n"
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);
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fprintf (headerfile,
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"typedef char *heim_utf8_string;\n\n"
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);
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fprintf (headerfile,
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"typedef char *heim_printable_string;\n\n"
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);
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fprintf (headerfile,
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"typedef char *heim_ia5_string;\n\n"
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);
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fprintf (headerfile,
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"typedef struct heim_bmp_string {\n"
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" size_t length;\n"
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" uint16_t *data;\n"
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"} heim_bmp_string;\n\n");
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fprintf (headerfile,
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"typedef struct heim_universal_string {\n"
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" size_t length;\n"
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" uint32_t *data;\n"
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"} heim_universal_string;\n\n");
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fprintf (headerfile,
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"typedef char *heim_visible_string;\n\n"
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);
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fprintf (headerfile,
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"typedef struct heim_oid {\n"
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" size_t length;\n"
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" unsigned *components;\n"
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"} heim_oid;\n\n");
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fprintf (headerfile,
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"typedef struct heim_bit_string {\n"
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" size_t length;\n"
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" void *data;\n"
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"} heim_bit_string;\n\n");
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fprintf (headerfile,
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"typedef struct heim_octet_string heim_any;\n"
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"typedef struct heim_octet_string heim_any_set;\n\n");
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fputs("#define ASN1_MALLOC_ENCODE(T, B, BL, S, L, R) \\\n"
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" do { \\\n"
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" (BL) = length_##T((S)); \\\n"
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" (B) = malloc((BL)); \\\n"
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" if((B) == NULL) { \\\n"
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" (R) = ENOMEM; \\\n"
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" } else { \\\n"
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" (R) = encode_##T(((unsigned char*)(B)) + (BL) - 1, (BL), \\\n"
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" (S), (L)); \\\n"
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" if((R) != 0) { \\\n"
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" free((B)); \\\n"
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" (B) = NULL; \\\n"
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" } \\\n"
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" } \\\n"
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" } while (0)\n\n",
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headerfile);
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fprintf (headerfile, "struct units;\n\n");
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fprintf (headerfile, "#endif\n\n");
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asprintf(&fn, "%s_files", base);
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if (fn == NULL)
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errx(1, "malloc");
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logfile = fopen(fn, "w");
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if (logfile == NULL)
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err (1, "open %s", fn);
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}
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void
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close_generate (void)
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{
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fprintf (headerfile, "#endif /* __%s_h__ */\n", headerbase);
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fclose (headerfile);
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fprintf (logfile, "\n");
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fclose (logfile);
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}
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void
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gen_assign_defval(const char *var, struct value *val)
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{
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switch(val->type) {
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case stringvalue:
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fprintf(codefile, "if((%s = strdup(\"%s\")) == NULL)\nreturn ENOMEM;\n", var, val->u.stringvalue);
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break;
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case integervalue:
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fprintf(codefile, "%s = %d;\n", var, val->u.integervalue);
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break;
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case booleanvalue:
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if(val->u.booleanvalue)
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fprintf(codefile, "%s = TRUE;\n", var);
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else
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fprintf(codefile, "%s = FALSE;\n", var);
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break;
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default:
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abort();
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}
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}
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void
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gen_compare_defval(const char *var, struct value *val)
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{
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switch(val->type) {
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case stringvalue:
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fprintf(codefile, "if(strcmp(%s, \"%s\") != 0)\n", var, val->u.stringvalue);
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break;
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case integervalue:
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fprintf(codefile, "if(%s != %d)\n", var, val->u.integervalue);
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break;
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case booleanvalue:
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if(val->u.booleanvalue)
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fprintf(codefile, "if(!%s)\n", var);
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else
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fprintf(codefile, "if(%s)\n", var);
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break;
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default:
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abort();
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}
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}
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static void
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generate_header_of_codefile(const char *name)
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{
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char *filename;
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if (codefile != NULL)
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abort();
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asprintf (&filename, "%s_%s.x", STEM, name);
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if (filename == NULL)
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errx(1, "malloc");
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codefile = fopen (filename, "w");
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if (codefile == NULL)
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err (1, "fopen %s", filename);
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fprintf(logfile, "%s ", filename);
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free(filename);
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fprintf (codefile,
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"/* Generated from %s */\n"
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"/* Do not edit */\n\n"
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"#include <stdio.h>\n"
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"#include <stdlib.h>\n"
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"#include <time.h>\n"
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"#include <string.h>\n"
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"#include <errno.h>\n"
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"#include <limits.h>\n"
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"#include <krb5-types.h>\n",
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orig_filename);
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fprintf (codefile,
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"#include <%s.h>\n",
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headerbase);
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fprintf (codefile,
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"#include <asn1_err.h>\n"
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"#include <der.h>\n"
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"#include <parse_units.h>\n\n");
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}
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static void
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close_codefile(void)
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{
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if (codefile == NULL)
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abort();
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fclose(codefile);
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codefile = NULL;
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}
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void
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generate_constant (const Symbol *s)
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{
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switch(s->value->type) {
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case booleanvalue:
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break;
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case integervalue:
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fprintf (headerfile, "enum { %s = %d };\n\n",
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s->gen_name, s->value->u.integervalue);
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break;
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case nullvalue:
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break;
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case stringvalue:
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break;
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case objectidentifiervalue: {
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struct objid *o, **list;
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int i, len;
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generate_header_of_codefile(s->gen_name);
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len = 0;
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for (o = s->value->u.objectidentifiervalue; o != NULL; o = o->next)
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len++;
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list = emalloc(sizeof(*list) * len);
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i = 0;
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for (o = s->value->u.objectidentifiervalue; o != NULL; o = o->next)
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list[i++] = o;
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fprintf (headerfile, "/* OBJECT IDENTIFIER %s ::= { ", s->name);
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for (i = len - 1 ; i >= 0; i--) {
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o = list[i];
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fprintf(headerfile, "%s(%d) ",
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o->label ? o->label : "label-less", o->value);
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}
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fprintf (headerfile, "} */\n");
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fprintf (headerfile, "const heim_oid *oid_%s(void);\n\n",
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s->gen_name);
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fprintf (codefile, "static unsigned oid_%s_variable_num[%d] = {",
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s->gen_name, len);
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for (i = len - 1 ; i >= 0; i--) {
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fprintf(codefile, "%d%s ", list[i]->value, i > 0 ? "," : "");
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}
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fprintf(codefile, "};\n");
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fprintf (codefile, "static const heim_oid oid_%s_variable = "
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"{ %d, oid_%s_variable_num };\n\n",
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s->gen_name, len, s->gen_name);
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fprintf (codefile, "const heim_oid *oid_%s(void)\n"
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"{\n"
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"return &oid_%s_variable;\n"
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"}\n\n",
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s->gen_name, s->gen_name);
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close_codefile();
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break;
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}
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default:
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abort();
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}
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}
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static void
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space(int level)
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{
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while(level-- > 0)
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fprintf(headerfile, " ");
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}
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static const char *
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last_member_p(struct member *m)
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{
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struct member *n = ASN1_TAILQ_NEXT(m, members);
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if (n == NULL)
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return "";
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if (n->ellipsis && ASN1_TAILQ_NEXT(n, members) == NULL)
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return "";
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return ",";
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}
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static struct member *
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have_ellipsis(Type *t)
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{
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struct member *m;
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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if (m->ellipsis)
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return m;
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}
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return NULL;
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}
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static void
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define_asn1 (int level, Type *t)
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{
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switch (t->type) {
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case TType:
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fprintf (headerfile, "%s", t->symbol->name);
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break;
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case TInteger:
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if(t->members == NULL) {
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fprintf (headerfile, "INTEGER");
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if (t->range)
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fprintf (headerfile, " (%d..%d)",
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t->range->min, t->range->max);
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} else {
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Member *m;
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fprintf (headerfile, "INTEGER {\n");
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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space (level + 1);
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fprintf(headerfile, "%s(%d)%s\n", m->gen_name, m->val,
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last_member_p(m));
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}
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space(level);
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fprintf (headerfile, "}");
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}
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break;
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case TBoolean:
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fprintf (headerfile, "BOOLEAN");
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break;
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case TOctetString:
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fprintf (headerfile, "OCTET STRING");
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break;
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case TEnumerated :
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case TBitString: {
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Member *m;
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space(level);
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if(t->type == TBitString)
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fprintf (headerfile, "BIT STRING {\n");
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else
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fprintf (headerfile, "ENUMERATED {\n");
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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space(level + 1);
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fprintf (headerfile, "%s(%d)%s\n", m->name, m->val,
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last_member_p(m));
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}
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space(level);
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fprintf (headerfile, "}");
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break;
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}
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case TChoice:
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case TSet:
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case TSequence: {
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Member *m;
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int max_width = 0;
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if(t->type == TChoice)
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fprintf(headerfile, "CHOICE {\n");
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else if(t->type == TSet)
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fprintf(headerfile, "SET {\n");
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else
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fprintf(headerfile, "SEQUENCE {\n");
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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if(strlen(m->name) > max_width)
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max_width = strlen(m->name);
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}
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max_width += 3;
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if(max_width < 16) max_width = 16;
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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int width = max_width;
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space(level + 1);
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if (m->ellipsis) {
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fprintf (headerfile, "...");
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} else {
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width -= fprintf(headerfile, "%s", m->name);
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fprintf(headerfile, "%*s", width, "");
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define_asn1(level + 1, m->type);
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if(m->optional)
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fprintf(headerfile, " OPTIONAL");
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}
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if(last_member_p(m))
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fprintf (headerfile, ",");
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fprintf (headerfile, "\n");
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}
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space(level);
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fprintf (headerfile, "}");
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break;
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}
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case TSequenceOf:
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fprintf (headerfile, "SEQUENCE OF ");
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define_asn1 (0, t->subtype);
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break;
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case TSetOf:
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fprintf (headerfile, "SET OF ");
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define_asn1 (0, t->subtype);
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break;
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case TGeneralizedTime:
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fprintf (headerfile, "GeneralizedTime");
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break;
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case TGeneralString:
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fprintf (headerfile, "GeneralString");
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break;
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case TTag: {
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const char *classnames[] = { "UNIVERSAL ", "APPLICATION ",
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"" /* CONTEXT */, "PRIVATE " };
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if(t->tag.tagclass != ASN1_C_UNIV)
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fprintf (headerfile, "[%s%d] ",
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classnames[t->tag.tagclass],
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t->tag.tagvalue);
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if(t->tag.tagenv == TE_IMPLICIT)
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fprintf (headerfile, "IMPLICIT ");
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define_asn1 (level, t->subtype);
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break;
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}
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case TUTCTime:
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fprintf (headerfile, "UTCTime");
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break;
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case TUTF8String:
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space(level);
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fprintf (headerfile, "UTF8String");
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break;
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case TPrintableString:
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space(level);
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fprintf (headerfile, "PrintableString");
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break;
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case TIA5String:
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space(level);
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fprintf (headerfile, "IA5String");
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break;
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case TBMPString:
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space(level);
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fprintf (headerfile, "BMPString");
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break;
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case TUniversalString:
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space(level);
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fprintf (headerfile, "UniversalString");
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break;
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case TVisibleString:
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space(level);
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fprintf (headerfile, "VisibleString");
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break;
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case TOID :
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space(level);
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fprintf(headerfile, "OBJECT IDENTIFIER");
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break;
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case TNull:
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space(level);
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fprintf (headerfile, "NULL");
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break;
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default:
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abort ();
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}
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}
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static void
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define_type (int level, const char *name, Type *t, int typedefp, int preservep)
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{
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|
switch (t->type) {
|
|
case TType:
|
|
space(level);
|
|
fprintf (headerfile, "%s %s;\n", t->symbol->gen_name, name);
|
|
break;
|
|
case TInteger:
|
|
space(level);
|
|
if(t->members) {
|
|
Member *m;
|
|
fprintf (headerfile, "enum %s {\n", typedefp ? name : "");
|
|
ASN1_TAILQ_FOREACH(m, t->members, members) {
|
|
space (level + 1);
|
|
fprintf(headerfile, "%s = %d%s\n", m->gen_name, m->val,
|
|
last_member_p(m));
|
|
}
|
|
fprintf (headerfile, "} %s;\n", name);
|
|
} else if (t->range == NULL) {
|
|
fprintf (headerfile, "heim_integer %s;\n", name);
|
|
} else if (t->range->min == INT_MIN && t->range->max == INT_MAX) {
|
|
fprintf (headerfile, "int %s;\n", name);
|
|
} else if (t->range->min == 0 && t->range->max == UINT_MAX) {
|
|
fprintf (headerfile, "unsigned int %s;\n", name);
|
|
} else if (t->range->min == 0 && t->range->max == INT_MAX) {
|
|
fprintf (headerfile, "unsigned int %s;\n", name);
|
|
} else
|
|
errx(1, "%s: unsupported range %d -> %d",
|
|
name, t->range->min, t->range->max);
|
|
break;
|
|
case TBoolean:
|
|
space(level);
|
|
fprintf (headerfile, "int %s;\n", name);
|
|
break;
|
|
case TOctetString:
|
|
space(level);
|
|
fprintf (headerfile, "heim_octet_string %s;\n", name);
|
|
break;
|
|
case TBitString: {
|
|
Member *m;
|
|
Type i;
|
|
struct range range = { 0, INT_MAX };
|
|
|
|
i.type = TInteger;
|
|
i.range = ⦥
|
|
i.members = NULL;
|
|
i.constraint = NULL;
|
|
|
|
space(level);
|
|
if(ASN1_TAILQ_EMPTY(t->members))
|
|
fprintf (headerfile, "heim_bit_string %s;\n", name);
|
|
else {
|
|
fprintf (headerfile, "struct %s {\n", typedefp ? name : "");
|
|
ASN1_TAILQ_FOREACH(m, t->members, members) {
|
|
char *n;
|
|
|
|
asprintf (&n, "%s:1", m->gen_name);
|
|
if (n == NULL)
|
|
errx(1, "malloc");
|
|
define_type (level + 1, n, &i, FALSE, FALSE);
|
|
free (n);
|
|
}
|
|
space(level);
|
|
fprintf (headerfile, "} %s;\n\n", name);
|
|
}
|
|
break;
|
|
}
|
|
case TEnumerated: {
|
|
Member *m;
|
|
|
|
space(level);
|
|
fprintf (headerfile, "enum %s {\n", typedefp ? name : "");
|
|
ASN1_TAILQ_FOREACH(m, t->members, members) {
|
|
space(level + 1);
|
|
if (m->ellipsis)
|
|
fprintf (headerfile, "/* ... */\n");
|
|
else
|
|
fprintf (headerfile, "%s = %d%s\n", m->gen_name, m->val,
|
|
last_member_p(m));
|
|
}
|
|
space(level);
|
|
fprintf (headerfile, "} %s;\n\n", name);
|
|
break;
|
|
}
|
|
case TSet:
|
|
case TSequence: {
|
|
Member *m;
|
|
|
|
space(level);
|
|
fprintf (headerfile, "struct %s {\n", typedefp ? name : "");
|
|
if (t->type == TSequence && preservep) {
|
|
space(level + 1);
|
|
fprintf(headerfile, "heim_octet_string _save;\n");
|
|
}
|
|
ASN1_TAILQ_FOREACH(m, t->members, members) {
|
|
if (m->ellipsis) {
|
|
;
|
|
} else if (m->optional) {
|
|
char *n;
|
|
|
|
asprintf (&n, "*%s", m->gen_name);
|
|
if (n == NULL)
|
|
errx(1, "malloc");
|
|
define_type (level + 1, n, m->type, FALSE, FALSE);
|
|
free (n);
|
|
} else
|
|
define_type (level + 1, m->gen_name, m->type, FALSE, FALSE);
|
|
}
|
|
space(level);
|
|
fprintf (headerfile, "} %s;\n", name);
|
|
break;
|
|
}
|
|
case TSetOf:
|
|
case TSequenceOf: {
|
|
Type i;
|
|
struct range range = { 0, INT_MAX };
|
|
|
|
i.type = TInteger;
|
|
i.range = ⦥
|
|
i.members = NULL;
|
|
i.constraint = NULL;
|
|
|
|
space(level);
|
|
fprintf (headerfile, "struct %s {\n", typedefp ? name : "");
|
|
define_type (level + 1, "len", &i, FALSE, FALSE);
|
|
define_type (level + 1, "*val", t->subtype, FALSE, FALSE);
|
|
space(level);
|
|
fprintf (headerfile, "} %s;\n", name);
|
|
break;
|
|
}
|
|
case TGeneralizedTime:
|
|
space(level);
|
|
fprintf (headerfile, "time_t %s;\n", name);
|
|
break;
|
|
case TGeneralString:
|
|
space(level);
|
|
fprintf (headerfile, "heim_general_string %s;\n", name);
|
|
break;
|
|
case TTag:
|
|
define_type (level, name, t->subtype, typedefp, preservep);
|
|
break;
|
|
case TChoice: {
|
|
int first = 1;
|
|
Member *m;
|
|
|
|
space(level);
|
|
fprintf (headerfile, "struct %s {\n", typedefp ? name : "");
|
|
if (preservep) {
|
|
space(level + 1);
|
|
fprintf(headerfile, "heim_octet_string _save;\n");
|
|
}
|
|
space(level + 1);
|
|
fprintf (headerfile, "enum {\n");
|
|
m = have_ellipsis(t);
|
|
if (m) {
|
|
space(level + 2);
|
|
fprintf (headerfile, "%s = 0,\n", m->label);
|
|
first = 0;
|
|
}
|
|
ASN1_TAILQ_FOREACH(m, t->members, members) {
|
|
space(level + 2);
|
|
if (m->ellipsis)
|
|
fprintf (headerfile, "/* ... */\n");
|
|
else
|
|
fprintf (headerfile, "%s%s%s\n", m->label,
|
|
first ? " = 1" : "",
|
|
last_member_p(m));
|
|
first = 0;
|
|
}
|
|
space(level + 1);
|
|
fprintf (headerfile, "} element;\n");
|
|
space(level + 1);
|
|
fprintf (headerfile, "union {\n");
|
|
ASN1_TAILQ_FOREACH(m, t->members, members) {
|
|
if (m->ellipsis) {
|
|
space(level + 2);
|
|
fprintf(headerfile, "heim_octet_string asn1_ellipsis;\n");
|
|
} else if (m->optional) {
|
|
char *n;
|
|
|
|
asprintf (&n, "*%s", m->gen_name);
|
|
if (n == NULL)
|
|
errx(1, "malloc");
|
|
define_type (level + 2, n, m->type, FALSE, FALSE);
|
|
free (n);
|
|
} else
|
|
define_type (level + 2, m->gen_name, m->type, FALSE, FALSE);
|
|
}
|
|
space(level + 1);
|
|
fprintf (headerfile, "} u;\n");
|
|
space(level);
|
|
fprintf (headerfile, "} %s;\n", name);
|
|
break;
|
|
}
|
|
case TUTCTime:
|
|
space(level);
|
|
fprintf (headerfile, "time_t %s;\n", name);
|
|
break;
|
|
case TUTF8String:
|
|
space(level);
|
|
fprintf (headerfile, "heim_utf8_string %s;\n", name);
|
|
break;
|
|
case TPrintableString:
|
|
space(level);
|
|
fprintf (headerfile, "heim_printable_string %s;\n", name);
|
|
break;
|
|
case TIA5String:
|
|
space(level);
|
|
fprintf (headerfile, "heim_ia5_string %s;\n", name);
|
|
break;
|
|
case TBMPString:
|
|
space(level);
|
|
fprintf (headerfile, "heim_bmp_string %s;\n", name);
|
|
break;
|
|
case TUniversalString:
|
|
space(level);
|
|
fprintf (headerfile, "heim_universal_string %s;\n", name);
|
|
break;
|
|
case TVisibleString:
|
|
space(level);
|
|
fprintf (headerfile, "heim_visible_string %s;\n", name);
|
|
break;
|
|
case TOID :
|
|
space(level);
|
|
fprintf (headerfile, "heim_oid %s;\n", name);
|
|
break;
|
|
case TNull:
|
|
space(level);
|
|
fprintf (headerfile, "int %s;\n", name);
|
|
break;
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
generate_type_header (const Symbol *s)
|
|
{
|
|
int preservep = preserve_type(s->name) ? TRUE : FALSE;
|
|
|
|
fprintf (headerfile, "/*\n");
|
|
fprintf (headerfile, "%s ::= ", s->name);
|
|
define_asn1 (0, s->type);
|
|
fprintf (headerfile, "\n*/\n\n");
|
|
|
|
fprintf (headerfile, "typedef ");
|
|
define_type (0, s->gen_name, s->type, TRUE, preservep);
|
|
|
|
fprintf (headerfile, "\n");
|
|
}
|
|
|
|
|
|
void
|
|
generate_type (const Symbol *s)
|
|
{
|
|
generate_header_of_codefile(s->gen_name);
|
|
|
|
generate_type_header (s);
|
|
generate_type_encode (s);
|
|
generate_type_decode (s);
|
|
generate_type_free (s);
|
|
generate_type_length (s);
|
|
generate_type_copy (s);
|
|
generate_type_seq (s);
|
|
generate_glue (s->type, s->gen_name);
|
|
fprintf(headerfile, "\n\n");
|
|
close_codefile();
|
|
}
|