a1cf5dc4e2
non-destructive git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1939 ec53bebd-3082-4978-b11e-865c3cabbd6b
118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
#include "asn1_locl.h"
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RCSID("$Id$");
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static void
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length_primitive (char *typename, char *name, char *variable)
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{
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fprintf (codefile, "%s += length_%s(%s);\n", variable, typename, name);
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}
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static void
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length_type (char *name, Type *t, char *variable)
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{
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switch (t->type) {
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case TType:
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#if 0
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length_type (name, t->symbol->type);
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#endif
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fprintf (codefile, "%s += length_%s(%s);\n",
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variable, t->symbol->gen_name, name);
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break;
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case TInteger:
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length_primitive ("integer", name, variable);
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break;
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case TOctetString:
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length_primitive ("octet_string", name, variable);
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break;
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case TBitString: {
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/*
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* XXX - Hope this is correct
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* look at TBitString case in `encode_type'
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*/
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fprintf (codefile, "%s += 7;\n", variable);
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break;
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}
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case TSequence: {
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Member *m;
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int tag = -1;
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if (t->members == NULL)
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break;
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for (m = t->members; m && tag != m->val; m = m->next) {
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char *s = malloc(2 + strlen(name) + 1 + strlen(m->gen_name) + 3);
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sprintf (s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name);
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if (m->optional)
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fprintf (codefile, "if(%s)", s);
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fprintf (codefile, "{\n"
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"int oldret = %s;\n"
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"%s = 0;\n", variable, variable);
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length_type (s, m->type, "ret");
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fprintf (codefile, "%s += 1 + length_len(%s) + oldret;\n",
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variable, variable);
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fprintf (codefile, "}\n");
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if (tag == -1)
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tag = m->val;
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free (s);
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}
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fprintf (codefile,
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"%s += 1 + length_len(%s);\n", variable, variable);
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break;
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}
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case TSequenceOf: {
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char *n = malloc(2*strlen(name) + 20);
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fprintf (codefile,
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"{\n"
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"int oldret = %s;\n"
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"int i;\n"
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"%s = 0;\n",
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variable, variable);
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fprintf (codefile, "for(i = (%s)->len - 1; i >= 0; --i){\n", name);
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sprintf (n, "&(%s)->val[i]", name);
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length_type(n, t->subtype, variable);
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fprintf (codefile, "}\n");
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fprintf (codefile,
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"%s += 1 + length_len(%s) + oldret;\n"
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"}\n", variable, variable);
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free(n);
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break;
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}
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case TGeneralizedTime:
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length_primitive ("generalized_time", name, variable);
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break;
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case TGeneralString:
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length_primitive ("general_string", name, variable);
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break;
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case TApplication:
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length_type (name, t->subtype, variable);
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fprintf (codefile, "ret += 1 + length_len (ret);\n");
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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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generate_type_length (Symbol *s)
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{
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fprintf (headerfile,
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"size_t length_%s(%s *);\n",
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s->gen_name, s->gen_name);
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fprintf (codefile,
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"size_t\n"
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"length_%s(%s *data)\n"
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"{\n"
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"size_t ret = 0;\n",
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s->gen_name, s->gen_name);
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length_type ("data", s->type, "ret");
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fprintf (codefile, "return ret;\n}\n\n");
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}
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