diff options
Diffstat (limited to 'third_party/heimdal/lib/asn1/gen_glue.c')
| -rw-r--r-- | third_party/heimdal/lib/asn1/gen_glue.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/asn1/gen_glue.c b/third_party/heimdal/lib/asn1/gen_glue.c new file mode 100644 index 0000000..424e5de --- /dev/null +++ b/third_party/heimdal/lib/asn1/gen_glue.c @@ -0,0 +1,162 @@ +/* + * Copyright (c) 1997, 1999, 2000, 2003 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Portions Copyright (c) 2009 Apple Inc. 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 FILE * +get_code_file(void) +{ + if (!one_code_file && template_flag && templatefile) + return templatefile; + return codefile; +} + +static void +generate_2int (const Type *t, const char *gen_name) +{ + Member *m; + + fprintf (headerfile, + "uint64_t %s2int(%s);\n", + gen_name, gen_name); + + fprintf (get_code_file(), + "uint64_t %s2int(%s f)\n" + "{\n" + "uint64_t r = 0;\n", + gen_name, gen_name); + + HEIM_TAILQ_FOREACH(m, t->members, members) { + fprintf (get_code_file(), "if(f.%s) r |= (1ULL << %d);\n", + m->gen_name, (int)m->val); + } + fprintf (get_code_file(), "return r;\n" + "}\n\n"); +} + +static void +generate_int2 (const Type *t, const char *gen_name) +{ + Member *m; + + fprintf (headerfile, + "%s int2%s(uint64_t);\n", + gen_name, gen_name); + + fprintf (get_code_file(), + "%s int2%s(uint64_t n)\n" + "{\n" + "\t%s flags;\n\n" + "\tmemset(&flags, 0, sizeof(flags));\n\n", + gen_name, gen_name, gen_name); + + if(t->members) { + HEIM_TAILQ_FOREACH(m, t->members, members) { + fprintf (get_code_file(), "\tflags.%s = (n >> %d) & 1;\n", + m->gen_name, (int)m->val); + } + } + fprintf (get_code_file(), "\treturn flags;\n" + "}\n\n"); +} + +/* + * This depends on the bit string being declared in increasing order + */ + +static void +generate_units (const Type *t, const char *gen_name) +{ + Member *m; + + fprintf (headerfile, + "const struct units * asn1_%s_units(void);\n", + gen_name); + + fprintf (get_code_file(), + "static struct units %s_units[] = {\n", + gen_name); + + if(t->members) { + HEIM_TAILQ_FOREACH_REVERSE(m, t->members, memhead, members) { + fprintf (get_code_file(), + "\t{\"%s\",\t1ULL << %d},\n", m->name, (int)m->val); + } + } + + fprintf (get_code_file(), + "\t{NULL,\t0}\n" + "};\n\n"); + + fprintf (get_code_file(), + "const struct units * asn1_%s_units(void){\n" + "return %s_units;\n" + "}\n\n", + gen_name, gen_name); + + +} + +void +generate_glue (const Type *t, const char *gen_name) +{ + switch(t->type) { + case TTag: + generate_glue(t->subtype, gen_name); + break; + case TBitString : { + Member *m; + + if (HEIM_TAILQ_EMPTY(t->members)) + break; + HEIM_TAILQ_FOREACH(m, t->members, members) { + if (m->val > 63) { + warnx("Not generating 2int, int2, or units for %s due to " + "having a member valued more than 63", gen_name); + return; + } + } + generate_2int (t, gen_name); + generate_int2 (t, gen_name); + if (parse_units_flag) + generate_units (t, gen_name); + break; + } + default : + break; + } +} |