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