diff options
Diffstat (limited to 'source4/heimdal/lib/asn1/gen_free.c')
| -rw-r--r-- | source4/heimdal/lib/asn1/gen_free.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/source4/heimdal/lib/asn1/gen_free.c b/source4/heimdal/lib/asn1/gen_free.c new file mode 100644 index 0000000000..1cec79a911 --- /dev/null +++ b/source4/heimdal/lib/asn1/gen_free.c @@ -0,0 +1,194 @@ +/* + * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "gen_locl.h" + +RCSID("$Id$"); + +static void +free_primitive (const char *typename, const char *name) +{ + fprintf (codefile, "der_free_%s(%s);\n", typename, name); +} + +static void +free_type (const char *name, const Type *t, int preserve) +{ + switch (t->type) { + case TType: +#if 0 + free_type (name, t->symbol->type, preserve); +#endif + fprintf (codefile, "free_%s(%s);\n", t->symbol->gen_name, name); + break; + case TInteger: + if (t->range == NULL && t->members == NULL) { + free_primitive ("heim_integer", name); + break; + } + case TBoolean: + case TEnumerated : + case TNull: + case TGeneralizedTime: + case TUTCTime: + break; + case TBitString: + if (ASN1_TAILQ_EMPTY(t->members)) + free_primitive("bit_string", name); + break; + case TOctetString: + free_primitive ("octet_string", name); + break; + case TChoice: + case TSet: + case TSequence: { + Member *m, *have_ellipsis = NULL; + + if (t->members == NULL) + break; + + if ((t->type == TSequence || t->type == TChoice) && preserve) + fprintf(codefile, "der_free_octet_string(&data->_save);\n"); + + if(t->type == TChoice) + fprintf(codefile, "switch((%s)->element) {\n", name); + + ASN1_TAILQ_FOREACH(m, t->members, members) { + char *s; + + if (m->ellipsis){ + have_ellipsis = m; + continue; + } + + if(t->type == TChoice) + fprintf(codefile, "case %s:\n", m->label); + asprintf (&s, "%s(%s)->%s%s", + m->optional ? "" : "&", name, + t->type == TChoice ? "u." : "", m->gen_name); + if (s == NULL) + errx(1, "malloc"); + if(m->optional) + fprintf(codefile, "if(%s) {\n", s); + free_type (s, m->type, FALSE); + if(m->optional) + fprintf(codefile, + "free(%s);\n" + "%s = NULL;\n" + "}\n",s, s); + free (s); + if(t->type == TChoice) + fprintf(codefile, "break;\n"); + } + + if(t->type == TChoice) { + if (have_ellipsis) + fprintf(codefile, + "case %s:\n" + "der_free_octet_string(&(%s)->u.%s);\n" + "break;", + have_ellipsis->label, + name, have_ellipsis->gen_name); + fprintf(codefile, "}\n"); + } + break; + } + case TSetOf: + case TSequenceOf: { + char *n; + + fprintf (codefile, "while((%s)->len){\n", name); + asprintf (&n, "&(%s)->val[(%s)->len-1]", name, name); + if (n == NULL) + errx(1, "malloc"); + free_type(n, t->subtype, FALSE); + fprintf(codefile, + "(%s)->len--;\n" + "}\n", + name); + fprintf(codefile, + "free((%s)->val);\n" + "(%s)->val = NULL;\n", name, name); + free(n); + break; + } + case TGeneralString: + free_primitive ("general_string", name); + break; + case TUTF8String: + free_primitive ("utf8string", name); + break; + case TPrintableString: + free_primitive ("printable_string", name); + break; + case TIA5String: + free_primitive ("ia5_string", name); + break; + case TBMPString: + free_primitive ("bmp_string", name); + break; + case TUniversalString: + free_primitive ("universal_string", name); + break; + case TVisibleString: + free_primitive ("visible_string", name); + break; + case TTag: + free_type (name, t->subtype, preserve); + break; + case TOID : + free_primitive ("oid", name); + break; + default : + abort (); + } +} + +void +generate_type_free (const Symbol *s) +{ + int preserve = preserve_type(s->name) ? TRUE : FALSE; + + 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, preserve); + fprintf (codefile, "}\n\n"); +} + |