Moved a lot of code to gen_{encode,decode,free,length,copy}.c.
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1453 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
755
lib/asn1/gen.c
755
lib/asn1/gen.c
@@ -1,13 +1,6 @@
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include <config.h>
|
||||
#endif
|
||||
RCSID("$Id$");
|
||||
#include "asn1_locl.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include "der.h"
|
||||
#include "gen.h"
|
||||
RCSID("$Id$");
|
||||
|
||||
FILE *headerfile, *codefile, *logfile;
|
||||
|
||||
@@ -137,752 +130,12 @@ generate_type_header (Symbol *s)
|
||||
fprintf (headerfile, "\n");
|
||||
}
|
||||
|
||||
static void
|
||||
encode_primitive (char *typename, char *name)
|
||||
{
|
||||
fprintf (codefile,
|
||||
"l = encode_%s(p, len, %s);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p -= l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n",
|
||||
typename,
|
||||
name);
|
||||
}
|
||||
|
||||
static void
|
||||
encode_type (char *name, Type *t)
|
||||
{
|
||||
switch (t->type) {
|
||||
case TType:
|
||||
#if 0
|
||||
encode_type (name, t->symbol->type);
|
||||
#endif
|
||||
fprintf (codefile,
|
||||
"l = encode_%s(p, len, %s);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p -= l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n",
|
||||
t->symbol->gen_name, name);
|
||||
break;
|
||||
case TInteger:
|
||||
encode_primitive ("integer", name);
|
||||
break;
|
||||
case TOctetString:
|
||||
encode_primitive ("octet_string", name);
|
||||
break;
|
||||
case TBitString: {
|
||||
Member *m;
|
||||
int pos;
|
||||
int rest;
|
||||
int tag = -1;
|
||||
|
||||
if (t->members == NULL)
|
||||
break;
|
||||
|
||||
fprintf (codefile, "{\n"
|
||||
"unsigned char c = 0;\n");
|
||||
pos = t->members->prev->val;
|
||||
/* fix for buggy MIT (and OSF?) code */
|
||||
if (pos > 31)
|
||||
abort ();
|
||||
/*
|
||||
* It seems that if we do not always set pos to 31 here, the MIT
|
||||
* code will do the wrong thing.
|
||||
*
|
||||
* I hate ASN.1 (and DER), but I hate it even more when everybody
|
||||
* has to screw it up differently.
|
||||
*/
|
||||
pos = 31;
|
||||
rest = 7 - (pos % 8);
|
||||
|
||||
for (m = t->members->prev; m && tag != m->val; m = m->prev) {
|
||||
while (m->val / 8 < pos / 8) {
|
||||
fprintf (codefile,
|
||||
"*p-- = c; len--; ret++;\n"
|
||||
"c = 0;\n");
|
||||
pos -= 8;
|
||||
}
|
||||
fprintf (codefile,
|
||||
"if(%s->%s) c |= 1<<%d;\n", name, m->gen_name,
|
||||
7 - m->val % 8);
|
||||
|
||||
if (tag == -1)
|
||||
tag = m->val;
|
||||
}
|
||||
|
||||
fprintf (codefile,
|
||||
"*p-- = c;\n"
|
||||
"*p-- = %d;\n"
|
||||
"len -= 2;\n"
|
||||
"ret += 2;\n"
|
||||
"}\n\n"
|
||||
"l = der_put_length_and_tag (p, len, ret, UNIV, PRIM,"
|
||||
"UT_BitString);\n"
|
||||
"if(l < 0)\n"
|
||||
" return l;\n"
|
||||
"p -= l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n",
|
||||
rest);
|
||||
break;
|
||||
}
|
||||
case TSequence: {
|
||||
Member *m;
|
||||
int tag = -1;
|
||||
|
||||
if (t->members == NULL)
|
||||
break;
|
||||
|
||||
for (m = t->members->prev; m && tag != m->val; m = m->prev) {
|
||||
char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3);
|
||||
|
||||
sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name);
|
||||
if (m->optional)
|
||||
fprintf (codefile,
|
||||
"if(%s)\n",
|
||||
s);
|
||||
#if 1
|
||||
fprintf (codefile, "{\n"
|
||||
"int oldret = ret;\n"
|
||||
"ret = 0;\n");
|
||||
#endif
|
||||
encode_type (s, m->type);
|
||||
fprintf (codefile,
|
||||
"l = der_put_length_and_tag (p, len, ret, CONTEXT, CONS, %d);\n"
|
||||
"if (l < 0)\n"
|
||||
"return l;\n"
|
||||
"p -= l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n",
|
||||
m->val);
|
||||
#if 1
|
||||
fprintf (codefile,
|
||||
"ret += oldret;\n"
|
||||
"}\n");
|
||||
#endif
|
||||
if (tag == -1)
|
||||
tag = m->val;
|
||||
free (s);
|
||||
}
|
||||
fprintf (codefile,
|
||||
"l = der_put_length_and_tag (p, len, ret, UNIV, CONS, UT_Sequence);\n"
|
||||
"if(l < 0)\n"
|
||||
" return l;\n"
|
||||
"p -= l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n");
|
||||
break;
|
||||
}
|
||||
case TSequenceOf: {
|
||||
char *n = malloc(strlen(name) + 12);
|
||||
|
||||
fprintf (codefile,
|
||||
"for(i = (%s)->len - 1; i >= 0; --i) {\n"
|
||||
#if 1
|
||||
"int oldret = ret;\n"
|
||||
"ret = 0;\n",
|
||||
#else
|
||||
,
|
||||
#endif
|
||||
name);
|
||||
sprintf (n, "&(%s)->val[i]", name);
|
||||
encode_type (n, t->subtype);
|
||||
fprintf (codefile,
|
||||
#if 1
|
||||
"ret += oldret;\n"
|
||||
#endif
|
||||
"}\n"
|
||||
"l = der_put_length_and_tag (p, len, ret, UNIV, CONS, UT_Sequence);\n"
|
||||
"if(l < 0)\n"
|
||||
" return l;\n"
|
||||
"p -= l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n");
|
||||
free (n);
|
||||
break;
|
||||
}
|
||||
case TGeneralizedTime:
|
||||
encode_primitive ("generalized_time", name);
|
||||
break;
|
||||
case TGeneralString:
|
||||
encode_primitive ("general_string", name);
|
||||
break;
|
||||
case TApplication:
|
||||
encode_type (name, t->subtype);
|
||||
fprintf (codefile,
|
||||
"l = der_put_length_and_tag (p, len, ret, APPL, CONS, %d);\n"
|
||||
"if(l < 0)\n"
|
||||
" return l;\n"
|
||||
"p -= l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n",
|
||||
t->application);
|
||||
break;
|
||||
default:
|
||||
abort ();
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
generate_type_encode (Symbol *s)
|
||||
{
|
||||
fprintf (headerfile,
|
||||
"int encode_%s(unsigned char *, int, %s *);\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
fprintf (codefile, "int\n"
|
||||
"encode_%s(unsigned char *p, int len, %s *data)\n"
|
||||
"{\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
switch (s->type->type) {
|
||||
case TInteger:
|
||||
fprintf (codefile, "return encode_integer (p, len, data);\n");
|
||||
break;
|
||||
case TOctetString:
|
||||
fprintf (codefile, "return encode_octet_string (p, len, data);\n");
|
||||
break;
|
||||
case TGeneralizedTime:
|
||||
fprintf (codefile, "return encode_generalized_time (p, len, data);\n");
|
||||
break;
|
||||
case TGeneralString:
|
||||
fprintf (codefile, "return encode_general_string (p, len, data);\n");
|
||||
break;
|
||||
case TBitString:
|
||||
case TSequence:
|
||||
case TSequenceOf:
|
||||
case TApplication:
|
||||
case TType:
|
||||
fprintf (codefile,
|
||||
"int ret = 0;\n"
|
||||
"int l, i;\n\n");
|
||||
|
||||
encode_type ("data", s->type);
|
||||
fprintf (codefile, "return ret;\n");
|
||||
break;
|
||||
default:
|
||||
abort ();
|
||||
}
|
||||
fprintf (codefile, "}\n\n");
|
||||
}
|
||||
|
||||
static void
|
||||
decode_primitive (char *typename, char *name)
|
||||
{
|
||||
fprintf (codefile,
|
||||
"l = decode_%s(p, len, %s);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n",
|
||||
typename,
|
||||
name);
|
||||
}
|
||||
|
||||
static void
|
||||
decode_type (char *name, Type *t)
|
||||
{
|
||||
switch (t->type) {
|
||||
case TType:
|
||||
#if 0
|
||||
decode_type (name, t->symbol->type);
|
||||
#endif
|
||||
fprintf (codefile,
|
||||
"l = decode_%s(p, len, %s);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n\n",
|
||||
t->symbol->gen_name, name);
|
||||
break;
|
||||
case TInteger:
|
||||
decode_primitive ("integer", name);
|
||||
break;
|
||||
case TOctetString:
|
||||
decode_primitive ("octet_string", name);
|
||||
break;
|
||||
case TBitString: {
|
||||
Member *m;
|
||||
int tag = -1;
|
||||
int pos;
|
||||
|
||||
fprintf (codefile,
|
||||
"l = der_match_tag_and_length (p, len, UNIV, PRIM, UT_BitString,"
|
||||
"&reallen);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"if(len < reallen)\n"
|
||||
"return -1;\n"
|
||||
"p++;\n"
|
||||
"len--;\n"
|
||||
"reallen--;\n"
|
||||
"ret++;\n");
|
||||
pos = 0;
|
||||
for (m = t->members; m && tag != m->val; m = m->next) {
|
||||
while (m->val / 8 > pos / 8) {
|
||||
fprintf (codefile,
|
||||
"p++; len--; reallen--; ret++;\n");
|
||||
pos += 8;
|
||||
}
|
||||
fprintf (codefile,
|
||||
"%s->%s = (*p >> %d) & 1;\n",
|
||||
name, m->gen_name, 7 - m->val % 8);
|
||||
if (tag == -1)
|
||||
tag = m->val;
|
||||
}
|
||||
fprintf (codefile,
|
||||
"p += reallen; len -= reallen; ret += reallen;\n");
|
||||
break;
|
||||
}
|
||||
case TSequence: {
|
||||
Member *m;
|
||||
int tag = -1;
|
||||
|
||||
if (t->members == NULL)
|
||||
break;
|
||||
|
||||
fprintf (codefile,
|
||||
"l = der_match_tag_and_length (p, len, UNIV, CONS, UT_Sequence,"
|
||||
"&reallen);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"{\n"
|
||||
"int dce_fix = 0;\n"
|
||||
"if(reallen == 0)\n"
|
||||
"dce_fix = 1;\n"
|
||||
"if(!dce_fix && len < reallen)\n"
|
||||
"return -1;\n"
|
||||
"if(!dce_fix)\n"
|
||||
"len = reallen;\n");
|
||||
|
||||
for (m = t->members; m && tag != m->val; m = m->next) {
|
||||
char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3);
|
||||
|
||||
sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name);
|
||||
fprintf (codefile, "{\n"
|
||||
"int newlen, oldlen;\n\n"
|
||||
"l = der_match_tag (p, len, CONTEXT, CONS, %d);\n",
|
||||
m->val);
|
||||
fprintf (codefile,
|
||||
"if(l >= 0) {\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"l = der_get_length (p, len, &newlen);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"{\n"
|
||||
"int dce_fix = 0;\n"
|
||||
"if(newlen == 0)\n"
|
||||
"dce_fix = 1;\n"
|
||||
"if(!dce_fix && len < newlen)\n"
|
||||
"return -1;\n"
|
||||
"oldlen = len;\n"
|
||||
"if(!dce_fix)\n"
|
||||
"len = newlen;\n");
|
||||
if (m->optional)
|
||||
fprintf (codefile,
|
||||
"%s = malloc(sizeof(*%s));\n",
|
||||
s, s);
|
||||
decode_type (s, m->type);
|
||||
fprintf (codefile,
|
||||
"if(dce_fix){\n"
|
||||
"l = der_match_tag_and_length (p, len, 0, 0, 0, &reallen);\n"
|
||||
"if(l < 0) return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"}else \n"
|
||||
"len = oldlen - newlen;\n"
|
||||
"}\n"
|
||||
"}\n"
|
||||
"else {\n");
|
||||
if(m->optional)
|
||||
fprintf (codefile,
|
||||
"%s = NULL;\n"
|
||||
"}\n", s);
|
||||
else
|
||||
fprintf (codefile,
|
||||
"return l;\n"
|
||||
"}\n");
|
||||
fprintf (codefile,
|
||||
"}\n");
|
||||
if (tag == -1)
|
||||
tag = m->val;
|
||||
free (s);
|
||||
}
|
||||
fprintf(codefile,
|
||||
"if(dce_fix){\n"
|
||||
"l = der_match_tag_and_length (p, len, 0, 0, 0, &reallen);\n"
|
||||
"if(l < 0) return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"}\n"
|
||||
"}\n");
|
||||
|
||||
break;
|
||||
}
|
||||
case TSequenceOf: {
|
||||
char *n = malloc(2*strlen(name) + 20);
|
||||
|
||||
fprintf (codefile,
|
||||
"l = der_match_tag_and_length (p, len, UNIV, CONS, UT_Sequence,"
|
||||
"&reallen);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"if(len < reallen)\n"
|
||||
"return -1;\n"
|
||||
"len = reallen;\n");
|
||||
|
||||
fprintf (codefile,
|
||||
"(%s)->len = 0;\n"
|
||||
"(%s)->val = NULL;\n"
|
||||
"while(len > 0) {\n"
|
||||
"(%s)->len++;\n"
|
||||
"(%s)->val = realloc((%s)->val, sizeof(*((%s)->val)) * (%s)->len);\n",
|
||||
name, name, name, name, name, name, name);
|
||||
sprintf (n, "&(%s)->val[(%s)->len-1]", name, name);
|
||||
decode_type (n, t->subtype);
|
||||
fprintf (codefile,
|
||||
"}\n");
|
||||
free (n);
|
||||
break;
|
||||
}
|
||||
case TGeneralizedTime:
|
||||
decode_primitive ("generalized_time", name);
|
||||
break;
|
||||
case TGeneralString:
|
||||
decode_primitive ("general_string", name);
|
||||
break;
|
||||
case TApplication:
|
||||
fprintf (codefile,
|
||||
"l = der_match_tag_and_length (p, len, APPL, CONS, %d, &reallen);\n"
|
||||
"if(l < 0)\n"
|
||||
"return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"{\n"
|
||||
"int dce_fix = 0;\n"
|
||||
"if(reallen == 0)\n"
|
||||
"dce_fix = 1;\n"
|
||||
"if(!dce_fix && len < reallen)\n"
|
||||
"return -1;\n"
|
||||
"if(!dce_fix)\n"
|
||||
"len = reallen;\n",
|
||||
t->application);
|
||||
decode_type (name, t->subtype);
|
||||
fprintf(codefile,
|
||||
"if(dce_fix){\n"
|
||||
"l = der_match_tag_and_length (p, len, 0, 0, 0, &reallen);\n"
|
||||
"if(l < 0) return l;\n"
|
||||
"p += l;\n"
|
||||
"len -= l;\n"
|
||||
"ret += l;\n"
|
||||
"}\n"
|
||||
"}\n");
|
||||
|
||||
break;
|
||||
default :
|
||||
abort ();
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
generate_type_decode (Symbol *s)
|
||||
{
|
||||
fprintf (headerfile,
|
||||
"int decode_%s(unsigned char *, int, %s *);\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
fprintf (codefile, "int\n"
|
||||
"decode_%s(unsigned char *p, int len, %s *data)\n"
|
||||
"{\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
switch (s->type->type) {
|
||||
case TInteger:
|
||||
fprintf (codefile, "return decode_integer (p, len, data);\n");
|
||||
break;
|
||||
case TOctetString:
|
||||
fprintf (codefile, "return decode_octet_string (p, len, data);\n");
|
||||
break;
|
||||
case TGeneralizedTime:
|
||||
fprintf (codefile, "return decode_generalized_time (p, len, data);\n");
|
||||
break;
|
||||
case TGeneralString:
|
||||
fprintf (codefile, "return decode_general_string (p, len, data);\n");
|
||||
break;
|
||||
case TBitString:
|
||||
case TSequence:
|
||||
case TSequenceOf:
|
||||
case TApplication:
|
||||
case TType:
|
||||
fprintf (codefile,
|
||||
"int ret = 0, reallen;\n"
|
||||
"int l, i;\n\n");
|
||||
|
||||
decode_type ("data", s->type);
|
||||
fprintf (codefile, "return ret;\n");
|
||||
break;
|
||||
default:
|
||||
abort ();
|
||||
}
|
||||
fprintf (codefile, "}\n\n");
|
||||
}
|
||||
|
||||
#if 0
|
||||
static void
|
||||
generate_type_decode (Symbol *s)
|
||||
{
|
||||
fprintf (headerfile,
|
||||
"int decode_%s(unsigned char *, int, %s *);\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
fprintf (codefile, "int\n"
|
||||
"decode_%s(unsigned char *p, int len, %s *data)\n"
|
||||
"{\n"
|
||||
"int ret = 0, reallen;\n"
|
||||
"int l, i;\n\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
decode_type ("data", s->type);
|
||||
fprintf (codefile, "return ret;\n"
|
||||
"}\n\n");
|
||||
}
|
||||
#endif
|
||||
|
||||
static void
|
||||
free_primitive (char *typename, char *name)
|
||||
{
|
||||
fprintf (codefile, "free_%s(%s);\n", typename, name);
|
||||
}
|
||||
|
||||
static void
|
||||
free_type (char *name, Type *t)
|
||||
{
|
||||
switch (t->type) {
|
||||
case TType:
|
||||
#if 0
|
||||
free_type (name, t->symbol->type);
|
||||
#endif
|
||||
fprintf (codefile, "free_%s(%s);\n", t->symbol->gen_name, name);
|
||||
break;
|
||||
case TInteger:
|
||||
free_primitive ("integer", name);
|
||||
break;
|
||||
case TOctetString:
|
||||
free_primitive ("octet_string", name);
|
||||
break;
|
||||
case TBitString: {
|
||||
break;
|
||||
}
|
||||
case TSequence: {
|
||||
Member *m;
|
||||
int tag = -1;
|
||||
|
||||
if (t->members == NULL)
|
||||
break;
|
||||
|
||||
for (m = t->members; m && tag != m->val; m = m->next) {
|
||||
char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3);
|
||||
|
||||
sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name);
|
||||
if(m->optional)
|
||||
fprintf(codefile, "if(%s) {\n", s);
|
||||
free_type (s, m->type);
|
||||
if(m->optional)
|
||||
fprintf(codefile,
|
||||
"free(%s);\n"
|
||||
"}\n",s);
|
||||
if (tag == -1)
|
||||
tag = m->val;
|
||||
free (s);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case TSequenceOf: {
|
||||
char *n = malloc(2*strlen(name) + 20);
|
||||
|
||||
fprintf (codefile, "while((%s)->len){\n", name);
|
||||
sprintf (n, "&(%s)->val[(%s)->len-1]", name, name);
|
||||
free_type(n, t->subtype);
|
||||
fprintf(codefile,
|
||||
"(%s)->len--;\n"
|
||||
"}\n",
|
||||
name);
|
||||
fprintf(codefile,
|
||||
"free((%s)->val);\n", name);
|
||||
free(n);
|
||||
break;
|
||||
}
|
||||
case TGeneralizedTime:
|
||||
free_primitive ("generalized_time", name);
|
||||
break;
|
||||
case TGeneralString:
|
||||
free_primitive ("general_string", name);
|
||||
break;
|
||||
case TApplication:
|
||||
free_type (name, t->subtype);
|
||||
break;
|
||||
default :
|
||||
abort ();
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
generate_type_free (Symbol *s)
|
||||
{
|
||||
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);
|
||||
fprintf (codefile, "}\n\n");
|
||||
}
|
||||
|
||||
static void
|
||||
length_primitive (char *typename, char *name, char *variable)
|
||||
{
|
||||
fprintf (codefile, "%s += length_%s(%s);\n", variable, typename, name);
|
||||
}
|
||||
|
||||
static void
|
||||
length_type (char *name, Type *t, char *variable)
|
||||
{
|
||||
switch (t->type) {
|
||||
case TType:
|
||||
#if 0
|
||||
length_type (name, t->symbol->type);
|
||||
#endif
|
||||
fprintf (codefile, "%s += length_%s(%s);\n",
|
||||
variable, t->symbol->gen_name, name);
|
||||
break;
|
||||
case TInteger:
|
||||
length_primitive ("integer", name, variable);
|
||||
break;
|
||||
case TOctetString:
|
||||
length_primitive ("octet_string", name, variable);
|
||||
break;
|
||||
case TBitString: {
|
||||
/*
|
||||
* XXX - Hope this is correct
|
||||
* look at TBitString case in `encode_type'
|
||||
*/
|
||||
fprintf (codefile, "%s += 7;\n", variable);
|
||||
break;
|
||||
}
|
||||
case TSequence: {
|
||||
Member *m;
|
||||
int tag = -1;
|
||||
|
||||
if (t->members == NULL)
|
||||
break;
|
||||
|
||||
for (m = t->members; m && tag != m->val; m = m->next) {
|
||||
char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3);
|
||||
|
||||
sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name);
|
||||
if (m->optional)
|
||||
fprintf (codefile, "if(%s)", s);
|
||||
fprintf (codefile, "{\n"
|
||||
"int oldret = %s;\n"
|
||||
"%s = 0;\n", variable, variable);
|
||||
length_type (s, m->type, "ret");
|
||||
fprintf (codefile, "%s += 1 + length_len(%s) + oldret;\n",
|
||||
variable, variable);
|
||||
fprintf (codefile, "}\n");
|
||||
if (tag == -1)
|
||||
tag = m->val;
|
||||
free (s);
|
||||
}
|
||||
fprintf (codefile,
|
||||
"%s += 1 + length_len(%s);\n", variable, variable);
|
||||
break;
|
||||
}
|
||||
case TSequenceOf: {
|
||||
char *n = malloc(2*strlen(name) + 20);
|
||||
|
||||
fprintf (codefile,
|
||||
"{\n"
|
||||
"int oldret = %s;\n"
|
||||
"%s = 0;\n", variable, variable);
|
||||
|
||||
fprintf (codefile, "while((%s)->len){\n", name);
|
||||
sprintf (n, "&(%s)->val[(%s)->len-1]", name, name);
|
||||
length_type(n, t->subtype, variable);
|
||||
fprintf(codefile,
|
||||
"(%s)->len--;\n"
|
||||
"}\n",
|
||||
name);
|
||||
fprintf (codefile,
|
||||
"%s += 1 + length_len(%s) + oldret;\n"
|
||||
"}\n", variable, variable);
|
||||
free(n);
|
||||
break;
|
||||
}
|
||||
case TGeneralizedTime:
|
||||
length_primitive ("generalized_time", name, variable);
|
||||
break;
|
||||
case TGeneralString:
|
||||
length_primitive ("general_string", name, variable);
|
||||
break;
|
||||
case TApplication:
|
||||
length_type (name, t->subtype, variable);
|
||||
fprintf (codefile, "ret += 1 + length_len (ret);\n");
|
||||
break;
|
||||
default :
|
||||
abort ();
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
generate_type_length (Symbol *s)
|
||||
{
|
||||
fprintf (headerfile,
|
||||
"size_t length_%s(%s *);\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
fprintf (codefile,
|
||||
"size_t\n"
|
||||
"length_%s(%s *data)\n"
|
||||
"{\n"
|
||||
"size_t ret = 0;\n",
|
||||
s->gen_name, s->gen_name);
|
||||
|
||||
length_type ("data", s->type, "ret");
|
||||
fprintf (codefile, "return ret;\n}\n\n");
|
||||
}
|
||||
|
||||
void
|
||||
generate_type (Symbol *s)
|
||||
{
|
||||
char *filename = malloc(strlen(STEM) + strlen(s->gen_name) + 4);
|
||||
sprintf(filename, "%s_%s.c", STEM, s->gen_name);
|
||||
sprintf(filename, "%s_%s.x", STEM, s->gen_name);
|
||||
codefile = fopen (filename, "w");
|
||||
if (codefile == NULL) {
|
||||
fprintf (stderr, "Could not create %s\n", filename);
|
||||
@@ -904,5 +157,7 @@ generate_type (Symbol *s)
|
||||
generate_type_decode (s);
|
||||
generate_type_free (s);
|
||||
generate_type_length (s);
|
||||
generate_type_copy (s);
|
||||
fprintf(headerfile, "\n\n");
|
||||
fclose(codefile);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user