Commit much improved ASN.1 compiler from joda-choice-branch.
Highlighs for the compiler is support for CHOICE and in general better support for tags. This compiler support most of what is needed for PK-INIT, LDAP, X.509, PKCS-12 and many other protocols. git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15617 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
@@ -1,5 +1,5 @@
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/*
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* Copyright (c) 1997 - 2000 Kungliga Tekniska H<>gskolan
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* Copyright (c) 1997 - 2005 Kungliga Tekniska H<>gskolan
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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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@@ -35,123 +35,212 @@
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RCSID("$Id$");
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static int used_fail;
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static void
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copy_primitive (const char *typename, const char *from, const char *to)
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{
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fprintf (codefile, "if(copy_%s(%s, %s)) return ENOMEM;\n",
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fprintf (codefile, "if(copy_%s(%s, %s)) goto fail;\n",
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typename, from, to);
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used_fail++;
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}
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static void
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copy_type (const char *from, const char *to, const Type *t)
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copy_type (const char *from, const char *to, const Type *t, int preserve)
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{
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switch (t->type) {
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case TType:
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switch (t->type) {
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case TType:
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#if 0
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copy_type (from, to, t->symbol->type);
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copy_type (from, to, t->symbol->type, preserve);
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#endif
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fprintf (codefile, "if(copy_%s(%s, %s)) return ENOMEM;\n",
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t->symbol->gen_name, from, to);
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break;
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case TInteger:
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case TUInteger:
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case TBoolean:
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case TEnumerated :
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fprintf(codefile, "*(%s) = *(%s);\n", to, from);
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break;
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case TOctetString:
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copy_primitive ("octet_string", from, to);
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break;
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case TOID:
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copy_primitive ("oid", from, to);
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break;
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case TBitString: {
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fprintf(codefile, "*(%s) = *(%s);\n", to, from);
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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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fprintf (codefile, "if(copy_%s(%s, %s)) goto fail;\n",
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t->symbol->gen_name, from, to);
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used_fail++;
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break;
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case TInteger:
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if (t->range == NULL && t->members == NULL) {
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copy_primitive ("heim_integer", from, to);
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break;
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}
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case TBoolean:
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case TEnumerated :
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fprintf(codefile, "*(%s) = *(%s);\n", to, from);
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break;
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case TOctetString:
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copy_primitive ("octet_string", from, to);
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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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copy_primitive ("bit_string", from, to);
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else
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fprintf(codefile, "*(%s) = *(%s);\n", to, from);
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break;
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case TSet:
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case TSequence:
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case TChoice: {
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Member *m, *have_ellipsis = NULL;
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if (t->members == NULL)
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break;
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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 *fn;
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char *tn;
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if ((t->type == TSequence || t->type == TChoice) && preserve) {
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fprintf(codefile,
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"{ int ret;\n"
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"ret = copy_octet_string(&(%s)->_save, &(%s)->_save);\n"
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"if (ret) goto fail;\n"
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"}\n",
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from, to);
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used_fail++;
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}
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asprintf (&fn, "%s(%s)->%s",
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m->optional ? "" : "&", from, m->gen_name);
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asprintf (&tn, "%s(%s)->%s",
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m->optional ? "" : "&", to, m->gen_name);
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if(m->optional){
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fprintf(codefile, "if(%s) {\n", fn);
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fprintf(codefile, "%s = malloc(sizeof(*%s));\n", tn, tn);
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fprintf(codefile, "if(%s == NULL) return ENOMEM;\n", tn);
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}
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copy_type (fn, tn, m->type);
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if(m->optional){
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fprintf(codefile, "}else\n");
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fprintf(codefile, "%s = NULL;\n", tn);
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}
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if (tag == -1)
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tag = m->val;
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free (fn);
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free (tn);
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}
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break;
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}
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case TSequenceOf: {
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char *f;
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char *T;
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if(t->type == TChoice) {
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fprintf(codefile, "(%s)->element = (%s)->element;\n", to, from);
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fprintf(codefile, "switch((%s)->element) {\n", from);
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}
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fprintf (codefile, "if(((%s)->val = "
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"malloc((%s)->len * sizeof(*(%s)->val))) == NULL && (%s)->len != 0)\n",
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to, from, to, from);
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fprintf (codefile, "return ENOMEM;\n");
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fprintf(codefile,
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"for((%s)->len = 0; (%s)->len < (%s)->len; (%s)->len++){\n",
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to, to, from, to);
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asprintf(&f, "&(%s)->val[(%s)->len]", from, to);
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asprintf(&T, "&(%s)->val[(%s)->len]", to, to);
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copy_type(f, T, t->subtype);
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fprintf(codefile, "}\n");
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free(f);
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free(T);
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break;
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}
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case TGeneralizedTime:
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fprintf(codefile, "*(%s) = *(%s);\n", to, from);
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break;
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case TGeneralString:
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copy_primitive ("general_string", from, to);
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break;
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case TUTF8String:
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copy_primitive ("utf8string", from, to);
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break;
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case TNull:
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break;
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case TApplication:
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copy_type (from, to, t->subtype);
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break;
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default :
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abort ();
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}
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ASN1_TAILQ_FOREACH(m, t->members, members) {
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char *fs;
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char *ts;
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if (m->ellipsis) {
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have_ellipsis = m;
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continue;
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}
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if(t->type == TChoice)
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fprintf(codefile, "case %s:\n", m->label);
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asprintf (&fs, "%s(%s)->%s%s",
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m->optional ? "" : "&", from,
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t->type == TChoice ? "u." : "", m->gen_name);
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if (fs == NULL)
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errx(1, "malloc");
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asprintf (&ts, "%s(%s)->%s%s",
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m->optional ? "" : "&", to,
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t->type == TChoice ? "u." : "", m->gen_name);
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if (ts == NULL)
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errx(1, "malloc");
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if(m->optional){
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fprintf(codefile, "if(%s) {\n", fs);
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fprintf(codefile, "%s = malloc(sizeof(*%s));\n", ts, ts);
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fprintf(codefile, "if(%s == NULL) goto fail;\n", ts);
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used_fail++;
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}
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copy_type (fs, ts, m->type, FALSE);
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if(m->optional){
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fprintf(codefile, "}else\n");
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fprintf(codefile, "%s = NULL;\n", ts);
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}
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free (fs);
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free (ts);
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if(t->type == TChoice)
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fprintf(codefile, "break;\n");
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}
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if(t->type == TChoice) {
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if (have_ellipsis) {
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fprintf(codefile, "case %s: {\n"
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"int ret;\n"
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"ret = copy_octet_string(&(%s)->u.%s, &(%s)->u.%s);\n"
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"if (ret) goto fail;\n"
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"break;\n"
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"}\n",
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have_ellipsis->label,
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from, have_ellipsis->gen_name,
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to, have_ellipsis->gen_name);
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used_fail++;
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}
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fprintf(codefile, "}\n");
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}
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break;
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}
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case TSetOf:
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case TSequenceOf: {
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char *f;
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char *T;
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fprintf (codefile, "if(((%s)->val = "
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"malloc((%s)->len * sizeof(*(%s)->val))) == NULL && (%s)->len != 0)\n",
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to, from, to, from);
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fprintf (codefile, "goto fail;\n");
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used_fail++;
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fprintf(codefile,
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"for((%s)->len = 0; (%s)->len < (%s)->len; (%s)->len++){\n",
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to, to, from, to);
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asprintf(&f, "&(%s)->val[(%s)->len]", from, to);
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if (f == NULL)
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errx(1, "malloc");
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asprintf(&T, "&(%s)->val[(%s)->len]", to, to);
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if (T == NULL)
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errx(1, "malloc");
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copy_type(f, T, t->subtype, FALSE);
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fprintf(codefile, "}\n");
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free(f);
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free(T);
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break;
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}
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case TGeneralizedTime:
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fprintf(codefile, "*(%s) = *(%s);\n", to, from);
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break;
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case TGeneralString:
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copy_primitive ("general_string", from, to);
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break;
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case TUTCTime:
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fprintf(codefile, "*(%s) = *(%s);\n", to, from);
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break;
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case TUTF8String:
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copy_primitive ("utf8string", from, to);
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break;
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case TPrintableString:
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copy_primitive ("printable_string", from, to);
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break;
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case TIA5String:
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copy_primitive ("ia5_string", from, to);
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break;
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case TBMPString:
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copy_primitive ("bmp_string", from, to);
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break;
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case TUniversalString:
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copy_primitive ("universal_string", from, to);
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break;
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case TTag:
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copy_type (from, to, t->subtype, preserve);
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break;
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case TOID:
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copy_primitive ("oid", from, to);
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break;
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case TNull:
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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_copy (const Symbol *s)
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{
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int preserve = preserve_type(s->name) ? TRUE : FALSE;
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used_fail = 0;
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fprintf (headerfile,
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"int copy_%s (const %s *, %s *);\n",
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s->gen_name, s->gen_name, s->gen_name);
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fprintf (codefile, "int\n"
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"copy_%s(const %s *from, %s *to)\n"
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"{\n",
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"{\n"
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"memset(to, 0, sizeof(*to));\n",
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s->gen_name, s->gen_name, s->gen_name);
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copy_type ("from", "to", s->type, preserve);
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fprintf (codefile, "return 0;\n");
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copy_type ("from", "to", s->type);
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fprintf (codefile, "return 0;\n}\n\n");
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if (used_fail)
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fprintf (codefile, "fail:\n"
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"free_%s(to);\n"
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"return ENOMEM;\n",
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s->gen_name);
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fprintf(codefile,
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"}\n\n");
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}
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