1/*	$NetBSD$	*/
2
3/*
4 * Copyright (c) 1997 - 2006 Kungliga Tekniska H��gskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include "gen_locl.h"
37
38__RCSID("$NetBSD$");
39
40void
41generate_type_seq (const Symbol *s)
42{
43    char *subname;
44    Type *type;
45
46    if (!seq_type(s->name))
47	return;
48    type = s->type;
49    while(type->type == TTag)
50	type = type->subtype;
51
52    if (type->type != TSequenceOf && type->type != TSetOf) {
53	fprintf(stderr, "%s not seq of %d\n", s->name, (int)type->type);
54	return;
55    }
56
57    /*
58     * Require the subtype to be a type so we can name it and use
59     * copy_/free_
60     */
61
62    if (type->subtype->type != TType) {
63	fprintf(stderr, "%s subtype is not a type, can't generate "
64	       "sequence code for this case: %d\n",
65		s->name, (int)type->subtype->type);
66	exit(1);
67    }
68
69    subname = type->subtype->symbol->gen_name;
70
71    fprintf (headerfile,
72	     "ASN1EXP int   ASN1CALL add_%s  (%s *, const %s *);\n"
73	     "ASN1EXP int   ASN1CALL remove_%s  (%s *, unsigned int);\n",
74	     s->gen_name, s->gen_name, subname,
75	     s->gen_name, s->gen_name);
76
77    fprintf (codefile, "int ASN1CALL\n"
78	     "add_%s(%s *data, const %s *element)\n"
79	     "{\n",
80	     s->gen_name, s->gen_name, subname);
81
82    fprintf (codefile,
83	     "int ret;\n"
84	     "void *ptr;\n"
85	     "\n"
86	     "ptr = realloc(data->val, \n"
87	     "\t(data->len + 1) * sizeof(data->val[0]));\n"
88	     "if (ptr == NULL) return ENOMEM;\n"
89	     "data->val = ptr;\n\n"
90	     "ret = copy_%s(element, &data->val[data->len]);\n"
91	     "if (ret) return ret;\n"
92	     "data->len++;\n"
93	     "return 0;\n",
94	     subname);
95
96    fprintf (codefile, "}\n\n");
97
98    fprintf (codefile, "int ASN1CALL\n"
99	     "remove_%s(%s *data, unsigned int element)\n"
100	     "{\n",
101	     s->gen_name, s->gen_name);
102
103    fprintf (codefile,
104	     "void *ptr;\n"
105	     "\n"
106	     "if (data->len == 0 || element >= data->len)\n"
107	     "\treturn ASN1_OVERRUN;\n"
108	     "free_%s(&data->val[element]);\n"
109	     "data->len--;\n"
110	     /* don't move if its the last element */
111	     "if (element < data->len)\n"
112	     "\tmemmove(&data->val[element], &data->val[element + 1], \n"
113	     "\t\tsizeof(data->val[0]) * data->len);\n"
114	     /* resize but don't care about failures since it doesn't matter */
115	     "ptr = realloc(data->val, data->len * sizeof(data->val[0]));\n"
116	     "if (ptr != NULL || data->len == 0) data->val = ptr;\n"
117	     "return 0;\n",
118	     subname);
119
120    fprintf (codefile, "}\n\n");
121}
122