diff options
Diffstat (limited to 'usr.bin/asn1_compile/gen_free.c')
| -rw-r--r-- | usr.bin/asn1_compile/gen_free.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/usr.bin/asn1_compile/gen_free.c b/usr.bin/asn1_compile/gen_free.c new file mode 100644 index 00000000000..56612e6b9df --- /dev/null +++ b/usr.bin/asn1_compile/gen_free.c @@ -0,0 +1,137 @@ +/* + * Copyright (c) 1997 - 2000 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("$KTH: gen_free.c,v 1.9 2001/09/25 13:39:26 assar Exp $"); +*/ + +static void +free_primitive (const char *typename, const char *name) +{ + fprintf (codefile, "free_%s(%s);\n", typename, name); +} + +static void +free_type (const char *name, const 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: + case TUInteger: + case TEnumerated : + break; + case TOctetString: + free_primitive ("octet_string", name); + break; + case TOID : + free_primitive ("oid", 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; + + asprintf (&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; + + fprintf (codefile, "while((%s)->len){\n", name); + asprintf (&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: + break; + case TGeneralString: + free_primitive ("general_string", name); + break; + case TApplication: + free_type (name, t->subtype); + break; + default : + abort (); + } +} + +void +generate_type_free (const 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"); +} + |