1/*
2                            __  __            _
3                         ___\ \/ /_ __   __ _| |_
4                        / _ \\  /| '_ \ / _` | __|
5                       |  __//  \| |_) | (_| | |_
6                        \___/_/\_\ .__/ \__,_|\__|
7                                 |_| XML parser
8
9   Copyright (c) 2017      Rhodri James <rhodri@wildebeest.org.uk>
10   Copyright (c) 2017-2023 Sebastian Pipping <sebastian@pipping.org>
11   Copyright (c) 2022      Sean McBride <sean@rogue-research.com>
12   Licensed under the MIT license:
13
14   Permission is  hereby granted,  free of charge,  to any  person obtaining
15   a  copy  of  this  software   and  associated  documentation  files  (the
16   "Software"),  to  deal in  the  Software  without restriction,  including
17   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
18   distribute, sublicense, and/or sell copies of the Software, and to permit
19   persons  to whom  the Software  is  furnished to  do so,  subject to  the
20   following conditions:
21
22   The above copyright  notice and this permission notice  shall be included
23   in all copies or substantial portions of the Software.
24
25   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
26   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
27   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
28   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
29   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
30   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
31   USE OR OTHER DEALINGS IN THE SOFTWARE.
32*/
33
34#if defined(NDEBUG)
35#  undef NDEBUG /* because test suite relies on assert(...) at the moment */
36#endif
37
38#include "expat_config.h"
39
40#include <assert.h>
41#include <stdlib.h>
42#include <stdio.h>
43#include <string.h>
44
45#include "structdata.h"
46#include "minicheck.h"
47
48#define STRUCT_EXTENSION_COUNT 8
49
50#ifdef XML_UNICODE_WCHAR_T
51#  include <wchar.h>
52#  define XML_FMT_STR "ls"
53#  define xcstrlen(s) wcslen(s)
54#  define xcstrcmp(s, t) wcscmp((s), (t))
55#else
56#  define XML_FMT_STR "s"
57#  define xcstrlen(s) strlen(s)
58#  define xcstrcmp(s, t) strcmp((s), (t))
59#endif
60
61static XML_Char *
62xmlstrdup(const XML_Char *s) {
63  size_t byte_count = (xcstrlen(s) + 1) * sizeof(XML_Char);
64  XML_Char *const dup = (XML_Char *)malloc(byte_count);
65
66  assert(dup != NULL);
67  memcpy(dup, s, byte_count);
68  return dup;
69}
70
71void
72StructData_Init(StructData *storage) {
73  assert(storage != NULL);
74  storage->count = 0;
75  storage->max_count = 0;
76  storage->entries = NULL;
77}
78
79void
80StructData_AddItem(StructData *storage, const XML_Char *s, int data0, int data1,
81                   int data2) {
82  StructDataEntry *entry;
83
84  assert(storage != NULL);
85  assert(s != NULL);
86  if (storage->count == storage->max_count) {
87    StructDataEntry *new_entries;
88
89    storage->max_count += STRUCT_EXTENSION_COUNT;
90    new_entries = (StructDataEntry *)realloc(
91        storage->entries, storage->max_count * sizeof(StructDataEntry));
92    assert(new_entries != NULL);
93    storage->entries = new_entries;
94  }
95
96  entry = &storage->entries[storage->count];
97  entry->str = xmlstrdup(s);
98  entry->data0 = data0;
99  entry->data1 = data1;
100  entry->data2 = data2;
101  storage->count++;
102}
103
104/* 'fail()' aborts the function via a longjmp, so there is no point
105 * in returning a value from this function.
106 */
107void
108StructData_CheckItems(StructData *storage, const StructDataEntry *expected,
109                      int count) {
110  char buffer[1024];
111
112  assert(storage != NULL);
113  assert(expected != NULL);
114  if (count != storage->count) {
115    snprintf(buffer, sizeof(buffer),
116             "wrong number of entries: got %d, expected %d", storage->count,
117             count);
118    StructData_Dispose(storage);
119    fail(buffer);
120  } else {
121    for (int i = 0; i < count; i++) {
122      const StructDataEntry *got = &storage->entries[i];
123      const StructDataEntry *want = &expected[i];
124
125      assert(got != NULL);
126      assert(want != NULL);
127
128      if (xcstrcmp(got->str, want->str) != 0) {
129        StructData_Dispose(storage);
130        fail("structure got bad string");
131      } else {
132        if (got->data0 != want->data0 || got->data1 != want->data1
133            || got->data2 != want->data2) {
134          snprintf(buffer, sizeof(buffer),
135                   "struct '%" XML_FMT_STR
136                   "' expected (%d,%d,%d), got (%d,%d,%d)",
137                   got->str, want->data0, want->data1, want->data2, got->data0,
138                   got->data1, got->data2);
139          StructData_Dispose(storage);
140          fail(buffer);
141        }
142      }
143    }
144  }
145}
146
147void
148StructData_Dispose(StructData *storage) {
149  int i;
150
151  assert(storage != NULL);
152  for (i = 0; i < storage->count; i++)
153    free((void *)storage->entries[i].str);
154  free(storage->entries);
155
156  storage->count = 0;
157  storage->entries = NULL;
158}
159