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-rw-r--r--third_party/heimdal/lib/asn1/gen_seq.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/asn1/gen_seq.c b/third_party/heimdal/lib/asn1/gen_seq.c
new file mode 100644
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+++ b/third_party/heimdal/lib/asn1/gen_seq.c
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+/*
+ * Copyright (c) 1997 - 2006 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 FILE *
+get_code_file(void)
+{
+ if (!one_code_file && template_flag && templatefile)
+ return templatefile;
+ return codefile;
+}
+
+void
+generate_type_seq (const Symbol *s)
+{
+ char *subname;
+ Type *type;
+
+ if (!seq_type(s->name))
+ return;
+ type = s->type;
+ while(type->type == TTag)
+ type = type->subtype;
+
+ if (type->type != TSequenceOf && type->type != TSetOf) {
+ fprintf(stderr, "%s not seq of %d\n", s->name, (int)type->type);
+ return;
+ }
+
+ /*
+ * Require the subtype to be a type so we can name it and use
+ * copy_/free_
+ */
+
+ if (type->subtype->type != TType) {
+ fprintf(stderr, "%s subtype is not a type, can't generate "
+ "sequence code for this case: %d\n",
+ s->name, (int)type->subtype->type);
+ exit(1);
+ }
+
+ subname = type->subtype->symbol->gen_name;
+
+ fprintf (headerfile,
+ "ASN1EXP int ASN1CALL add_%s (%s *, const %s *);\n"
+ "ASN1EXP int ASN1CALL remove_%s (%s *, unsigned int);\n",
+ s->gen_name, s->gen_name, subname,
+ s->gen_name, s->gen_name);
+
+ fprintf (get_code_file(), "int ASN1CALL\n"
+ "add_%s(%s *data, const %s *element)\n"
+ "{\n",
+ s->gen_name, s->gen_name, subname);
+
+ fprintf (get_code_file(),
+ "int ret;\n"
+ "void *ptr;\n"
+ "\n"
+ "ptr = realloc(data->val, \n"
+ "\t(data->len + 1) * sizeof(data->val[0]));\n"
+ "if (ptr == NULL) return ENOMEM;\n"
+ "data->val = ptr;\n\n"
+ "ret = copy_%s(element, &data->val[data->len]);\n"
+ "if (ret) return ret;\n"
+ "data->len++;\n"
+ "return 0;\n",
+ subname);
+
+ fprintf (get_code_file(), "}\n\n");
+
+ fprintf (get_code_file(), "int ASN1CALL\n"
+ "remove_%s(%s *data, unsigned int element)\n"
+ "{\n",
+ s->gen_name, s->gen_name);
+
+ fprintf (get_code_file(),
+ "void *ptr;\n"
+ "\n"
+ "if (data->len == 0 || element >= data->len)\n"
+ "\treturn ASN1_OVERRUN;\n"
+ "free_%s(&data->val[element]);\n"
+ "data->len--;\n"
+ /* don't move if its the last element */
+ "if (element < data->len)\n"
+ "\tmemmove(&data->val[element], &data->val[element + 1], \n"
+ "\t\tsizeof(data->val[0]) * (data->len - element));\n"
+ /* resize but don't care about failures since it doesn't matter */
+ "ptr = realloc(data->val, data->len * sizeof(data->val[0]));\n"
+ "if (ptr != NULL || data->len == 0) data->val = ptr;\n"
+ "return 0;\n",
+ subname);
+
+ fprintf (get_code_file(), "}\n\n");
+}