Repository navigation
Expand file tree
/
Copy pathos2iconv.c
More file actions
284 lines (243 loc) · 7.2 KB
/
Copy pathos2iconv.c
File metadata and controls
284 lines (243 loc) · 7.2 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
/*
Simple DirectMedia Layer
Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/*
Implementation iconv via OS/2 conversion objects API.
Andrey Vasilkin.
*/
#define ICONV_THREAD_SAFE 1
#include "geniconv.h"
#define _ULS_CALLCONV_
#define CALLCONV _System
#include <uconv.h>
#ifdef ICONV_THREAD_SAFE
#define INCL_DOSSEMAPHORES
#define INCL_DOSERRORS
#include <os2.h>
#endif
#include "os2cp.h"
#ifndef GENICONV_STANDALONE
#include "../../../SDL_internal.h"
#else
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if !defined(min)
#define min(a, b) (((a) < (b)) ? (a) : (b))
#endif
#define SDL_min min
#define SDL_strcasecmp stricmp
#define SDL_snprintf _snprintf
#define SDL_malloc malloc
#define SDL_free free
#define SDL_memcpy memcpy
#endif
#define MAX_CP_NAME_LEN 64
typedef struct iuconv_obj {
UconvObject uo_tocode;
UconvObject uo_fromcode;
int buf_len;
UniChar *buf;
#ifdef ICONV_THREAD_SAFE
HMTX hMtx;
#endif
} iuconv_obj;
static int _createUconvObj(const char *code, UconvObject *uobj)
{
UniChar uc_code[MAX_CP_NAME_LEN];
int i;
const unsigned char *ch =
(const unsigned char *)code;
if (!code)
uc_code[0] = 0;
else {
for (i = 0; i < MAX_CP_NAME_LEN; i++) {
uc_code[i] = (unsigned short)*ch;
if (! (*ch))
break;
ch++;
}
}
return UniCreateUconvObject(uc_code, uobj);
}
static int uconv_open(const char *code, UconvObject *uobj)
{
int rc;
if (!SDL_strcasecmp(code, "UTF-16")) {
*uobj = NULL;
return ULS_SUCCESS;
}
rc = _createUconvObj(code, uobj);
if (rc != ULS_SUCCESS) {
unsigned long cp = os2cpFromName((char *)code);
char cp_name[16];
if (cp != 0 && SDL_snprintf(cp_name, sizeof(cp_name), "IBM-%lu", cp) > 0) {
rc = _createUconvObj(cp_name, uobj);
}
}
return rc;
}
iconv_t _System os2_iconv_open(const char* tocode, const char* fromcode)
{
UconvObject uo_tocode;
UconvObject uo_fromcode;
int rc;
iuconv_obj *iuobj;
if (!tocode) {
tocode = "";
}
if (!fromcode) {
fromcode = "";
}
if (SDL_strcasecmp(tocode, fromcode) != 0) {
rc = uconv_open(fromcode, &uo_fromcode);
if (rc != ULS_SUCCESS) {
errno = EINVAL;
return (iconv_t)(-1);
}
rc = uconv_open(tocode, &uo_tocode);
if (rc != ULS_SUCCESS) {
UniFreeUconvObject(uo_fromcode);
errno = EINVAL;
return (iconv_t)(-1);
}
} else {
uo_tocode = NULL;
uo_fromcode = NULL;
}
iuobj = (iuconv_obj *) SDL_malloc(sizeof(iuconv_obj));
iuobj->uo_tocode = uo_tocode;
iuobj->uo_fromcode = uo_fromcode;
iuobj->buf_len = 0;
iuobj->buf = NULL;
#ifdef ICONV_THREAD_SAFE
DosCreateMutexSem(NULL, &iuobj->hMtx, 0, FALSE);
#endif
return iuobj;
}
size_t _System os2_iconv(iconv_t cd,
char **inbuf, size_t *inbytesleft ,
char **outbuf, size_t *outbytesleft)
{
UconvObject uo_tocode = ((iuconv_obj *)(cd))->uo_tocode;
UconvObject uo_fromcode = ((iuconv_obj *)(cd))->uo_fromcode;
size_t nonIdenticalConv = 0;
UniChar *uc_buf;
size_t uc_buf_len;
UniChar **uc_str;
size_t *uc_str_len;
int rc;
size_t ret = (size_t)(-1);
if (!uo_tocode && !uo_fromcode) {
uc_buf_len = SDL_min(*inbytesleft, *outbytesleft);
SDL_memcpy(*outbuf, *inbuf, uc_buf_len);
*inbytesleft -= uc_buf_len;
*outbytesleft -= uc_buf_len;
outbuf += uc_buf_len;
inbuf += uc_buf_len;
return uc_buf_len;
}
#ifdef ICONV_THREAD_SAFE
DosRequestMutexSem(((iuconv_obj *)(cd))->hMtx, SEM_INDEFINITE_WAIT);
#endif
if (uo_tocode && uo_fromcode && (((iuconv_obj *)cd)->buf_len >> 1) < *inbytesleft) {
if (((iuconv_obj *)cd)->buf != NULL) {
SDL_free(((iuconv_obj *)cd)->buf);
}
((iuconv_obj *)cd)->buf_len = *inbytesleft << 1;
((iuconv_obj *)cd)->buf = (UniChar *) SDL_malloc(((iuconv_obj *)cd)->buf_len);
}
if (uo_fromcode) {
if (uo_tocode) {
uc_buf = ((iuconv_obj *)cd)->buf;
uc_buf_len = ((iuconv_obj *)cd)->buf_len;
uc_str = &uc_buf;
} else {
uc_str = (UniChar **)outbuf;
uc_buf_len = *outbytesleft;
}
uc_buf_len = uc_buf_len >> 1;
uc_str_len = &uc_buf_len;
rc = UniUconvToUcs(uo_fromcode, (void **)inbuf, inbytesleft,
uc_str, uc_str_len, &nonIdenticalConv);
uc_buf_len = uc_buf_len << 1;
if (!uo_tocode) {
*outbytesleft = uc_buf_len;
}
if (rc != ULS_SUCCESS) {
errno = EILSEQ;
goto done;
} else if (*inbytesleft && !*uc_str_len) {
errno = E2BIG;
goto done;
}
if (!uo_tocode) {
return nonIdenticalConv;
}
uc_buf = ((iuconv_obj *)cd)->buf;
uc_buf_len = ((iuconv_obj *)cd)->buf_len - uc_buf_len;
uc_str = &uc_buf;
uc_str_len = &uc_buf_len;
} else {
uc_str = (UniChar **)inbuf;
uc_str_len = inbytesleft;
}
*uc_str_len = *uc_str_len>>1;
rc = UniUconvFromUcs(uo_tocode, uc_str, uc_str_len, (void **)outbuf,
outbytesleft, &nonIdenticalConv);
if (rc != ULS_SUCCESS) {
switch (rc) {
case ULS_BUFFERFULL:
errno = E2BIG;
57CB
break;
case ULS_ILLEGALSEQUENCE:
errno = EILSEQ;
break;
case ULS_INVALID:
errno = EINVAL;
break;
}
goto done;
} else if (*uc_str_len && !*outbytesleft) {
errno = E2BIG;
goto done;
}
ret = nonIdenticalConv;
done:
#ifdef ICONV_THREAD_SAFE
DosReleaseMutexSem(((iuconv_obj *)cd)->hMtx);
#endif
return ret;
}
int _System os2_iconv_close(iconv_t cd)
{
if (!cd) return 0;
#ifdef ICONV_THREAD_SAFE
DosCloseMutexSem(((iuconv_obj *)cd)->hMtx);
#endif
if (((iuconv_obj *)cd)->uo_tocode != NULL) {
UniFreeUconvObject(((iuconv_obj *)cd)->uo_tocode);
}
if (((iuconv_obj *)cd)->uo_fromcode != NULL) {
UniFreeUconvObject(((iuconv_obj *)cd)->uo_fromcode);
}
if (((iuconv_obj *)cd)->buf != NULL) {
SDL_free(((iuconv_obj *)cd)->buf);
}
SDL_free(cd);
return 0;
}