/[public]/psiconv/trunk/lib/psiconv/parse_simple.c
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Diff of /psiconv/trunk/lib/psiconv/parse_simple.c

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… …
16 along with this program; if not, write to the Free Software 16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/ 18*/
19 19
20#include "config.h" 20#include "config.h"
21#include "compat.h"
22
21#include <stdlib.h> 23#include <stdlib.h>
24#include <math.h>
22 25
23#include "parse_routines.h" 26#include "parse_routines.h"
27#include "error.h"
24 28
29#ifdef DMALLOC
30#include <dmalloc.h>
31#endif
32
33/* Very inefficient, but good enough for now. By implementing it ourselves,
34 we do not have to link with -lm */
35psiconv_float_t pow2(int n)
36{
37 psiconv_float_t res=1.0;
38 int i;
39
40 for (i = 0; i < (n<0?-n:n); i++)
41 res *= 2.0;
42
43 return n<0?1/res:res;
44}
25psiconv_u8 psiconv_read_u8(const psiconv_buffer buf,int lev,psiconv_u32 off, 45psiconv_u8 psiconv_read_u8(const psiconv_config config,const psiconv_buffer buf,int lev,psiconv_u32 off,
26 int *status) 46 int *status)
27{ 47{
28 psiconv_u8 *ptr; 48 psiconv_u8 *ptr;
29 ptr = psiconv_list_get(buf,off); 49 ptr = psiconv_buffer_get(buf,off);
30 if (!ptr) { 50 if (!ptr) {
31 psiconv_warn(lev,off,"Trying byte read past the end of the file"); 51 psiconv_warn(config,lev,off,"Trying byte read past the end of the file");
32 if (status) 52 if (status)
33 *status = -PSICONV_E_PARSE; 53 *status = -PSICONV_E_PARSE;
34 return 0; 54 return 0;
35 } 55 }
36 if (status) 56 if (status)
37 *status = 0; 57 *status = 0;
38 return *ptr; 58 return *ptr;
39} 59}
40 60
41psiconv_u16 psiconv_read_u16(const psiconv_buffer buf,int lev,psiconv_u32 off, 61psiconv_u16 psiconv_read_u16(const psiconv_config config,const psiconv_buffer buf,int lev,psiconv_u32 off,
42 int *status) 62 int *status)
43{ 63{
44 psiconv_u8 *ptr0,*ptr1; 64 psiconv_u8 *ptr0,*ptr1;
45 ptr0 = psiconv_list_get(buf,off); 65 ptr0 = psiconv_buffer_get(buf,off);
46 ptr1 = psiconv_list_get(buf,off+1); 66 ptr1 = psiconv_buffer_get(buf,off+1);
47 if (!ptr0 || !ptr1) { 67 if (!ptr0 || !ptr1) {
48 psiconv_warn(lev,off,"Trying word read past the end of the file"); 68 psiconv_warn(config,lev,off,"Trying word read past the end of the file");
49 if (status) 69 if (status)
50 *status = -PSICONV_E_PARSE; 70 *status = -PSICONV_E_PARSE;
51 return 0; 71 return 0;
52 } 72 }
53 if (status) 73 if (status)
54 *status = 0; 74 *status = 0;
55 return *ptr0 + (*ptr1 << 8); 75 return *ptr0 + (*ptr1 << 8);
56} 76}
57 77
58psiconv_u32 psiconv_read_u32(const psiconv_buffer buf,int lev,psiconv_u32 off, 78psiconv_u32 psiconv_read_u32(const psiconv_config config,const psiconv_buffer buf,int lev,psiconv_u32 off,
59 int *status) 79 int *status)
60{ 80{
61 psiconv_u8 *ptr0,*ptr1,*ptr2,*ptr3; 81 psiconv_u8 *ptr0,*ptr1,*ptr2,*ptr3;
62 ptr0 = psiconv_list_get(buf,off); 82 ptr0 = psiconv_buffer_get(buf,off);
63 ptr1 = psiconv_list_get(buf,off+1); 83 ptr1 = psiconv_buffer_get(buf,off+1);
64 ptr2 = psiconv_list_get(buf,off+2); 84 ptr2 = psiconv_buffer_get(buf,off+2);
65 ptr3 = psiconv_list_get(buf,off+3); 85 ptr3 = psiconv_buffer_get(buf,off+3);
66 if (!ptr0 || !ptr1 || !ptr2 || !ptr3) { 86 if (!ptr0 || !ptr1 || !ptr2 || !ptr3) {
67 psiconv_warn(lev,off,"Trying long read past the end of the file"); 87 psiconv_warn(config,lev,off,"Trying long read past the end of the file");
68 if (status) 88 if (status)
69 *status = -PSICONV_E_PARSE; 89 *status = -PSICONV_E_PARSE;
70 return 0; 90 return 0;
71 } 91 }
72 if (status) 92 if (status)
73 *status = 0; 93 *status = 0;
74 return *ptr0 + (*ptr1 << 8) + (*ptr2 << 16) + (*ptr3 << 24); 94 return *ptr0 + (*ptr1 << 8) + (*ptr2 << 16) + (*ptr3 << 24);
75} 95}
76 96
97psiconv_s32 psiconv_read_sint(const psiconv_config config,const psiconv_buffer buf,int lev,psiconv_u32 off,
98 int *length,int *status)
99{
100 int localstatus;
101 psiconv_u32 temp;
102
103 temp=psiconv_read_u32(config,buf,lev,off,&localstatus);
104 if (status)
105 *status = localstatus;
106 if (length)
107 *length = localstatus?0:4;
108
109 return localstatus?0:(temp & 0x7fffffff)*(temp&0x80000000?-1:1);
110}
111
77psiconv_S_t psiconv_read_S(const psiconv_buffer buf, int lev, psiconv_u32 off, 112psiconv_S_t psiconv_read_S(const psiconv_config config,const psiconv_buffer buf, int lev, psiconv_u32 off,
78 int *length,int *status) 113 int *length,int *status)
79{ 114{
80 psiconv_u8 temp; 115 psiconv_u8 temp;
81 psiconv_S_t res; 116 psiconv_S_t res;
82 int len,localstatus; 117 int len,localstatus;
83 118
84 psiconv_progress(lev+1,off,"Going to read a S length indicator"); 119 psiconv_progress(config,lev+1,off,"Going to read a S length indicator");
85 temp = psiconv_read_u8(buf,lev+2,off,&localstatus); 120 temp = psiconv_read_u8(config,buf,lev+2,off,&localstatus);
86 if (localstatus) 121 if (localstatus)
87 goto ERROR; 122 goto ERROR;
88 if ((temp & 0x03) == 0x02) { 123 if ((temp & 0x03) == 0x02) {
89 res = psiconv_read_u8(buf,lev+2,off,&localstatus) >> 2; 124 res = psiconv_read_u8(config,buf,lev+2,off,&localstatus) >> 2;
90 if (localstatus) 125 if (localstatus)
91 goto ERROR; 126 goto ERROR;
92 len = 1; 127 len = 1;
93 psiconv_debug(lev+2,off,"Indicator (1 byte): %02x",res); 128 psiconv_debug(config,lev+2,off,"Indicator (1 byte): %02x",res);
94 } else if ((temp & 0x07) == 0x03) { 129 } else if ((temp & 0x07) == 0x05) {
95 res = psiconv_read_u16(buf,lev+2,off,&localstatus) >> 3; 130 res = psiconv_read_u16(config,buf,lev+2,off,&localstatus) >> 3;
96 if (localstatus) 131 if (localstatus)
97 goto ERROR; 132 goto ERROR;
98 len = 2; 133 len = 2;
99 psiconv_debug(lev+2,off,"Indicator (2 bytes): %04x",res); 134 psiconv_debug(config,lev+2,off,"Indicator (2 bytes): %04x",res);
100 } else { 135 } else {
101 psiconv_warn(lev+2,off,"S indicator: unknown encoding!"); 136 psiconv_warn(config,lev+2,off,"S indicator: unknown encoding!");
102 psiconv_debug(lev+2,off,"Raw data first byte: %02x",temp); 137 psiconv_debug(config,lev+2,off,"Raw data first byte: %02x",temp);
103 goto ERROR; 138 goto ERROR;
104 } 139 }
105 140
106 if (length) 141 if (length)
107 *length = len; 142 *length = len;
108 if (status) 143 if (status)
109 *status = 0; 144 *status = 0;
110 145
111 psiconv_progress(lev+1,off+len-1, 146 psiconv_progress(config,lev+1,off+len-1,
112 "End of S length indicator (total length: %08x)", len); 147 "End of S length indicator (total length: %08x)", len);
113 148
114 return res; 149 return res;
115 150
116ERROR: 151ERROR:
117 psiconv_warn(lev+1,off,"Reading of S indicator failed"); 152 psiconv_warn(config,lev+1,off,"Reading of S indicator failed");
118 if (status) 153 if (status)
119 *status = localstatus; 154 *status = localstatus;
120 if (length) 155 if (length)
121 *length = 0; 156 *length = 0;
122 return 0; 157 return 0;
123} 158}
124 159
125psiconv_X_t psiconv_read_X(const psiconv_buffer buf, int lev, psiconv_u32 off, 160psiconv_X_t psiconv_read_X(const psiconv_config config,const psiconv_buffer buf, int lev, psiconv_u32 off,
126 int *length, int *status) 161 int *length, int *status)
127{ 162{
128 psiconv_u8 temp; 163 psiconv_u8 temp;
129 psiconv_X_t res; 164 psiconv_X_t res;
130 int len,localstatus; 165 int len,localstatus;
131 166
132 psiconv_progress(lev+1,off,"Going to read a X length indicator"); 167 psiconv_progress(config,lev+1,off,"Going to read a X length indicator");
133 temp = psiconv_read_u8(buf,lev+2,off,&localstatus); 168 temp = psiconv_read_u8(config,buf,lev+2,off,&localstatus);
134 if (localstatus) 169 if (localstatus)
135 goto ERROR; 170 goto ERROR;
136 if ((temp & 0x01) == 0x00) { 171 if ((temp & 0x01) == 0x00) {
137 res = psiconv_read_u8(buf,lev+2,off,&localstatus) >> 1; 172 res = psiconv_read_u8(config,buf,lev+2,off,&localstatus) >> 1;
138 if (localstatus) 173 if (localstatus)
139 goto ERROR; 174 goto ERROR;
140 len = 1; 175 len = 1;
141 psiconv_debug(lev+2,off,"Indicator (1 byte): %02x",res); 176 psiconv_debug(config,lev+2,off,"Indicator (1 byte): %02x",res);
142 } else if ((temp & 0x03) == 0x01) { 177 } else if ((temp & 0x03) == 0x01) {
143 res = psiconv_read_u16(buf,lev+2,off,&localstatus) >> 2; 178 res = psiconv_read_u16(config,buf,lev+2,off,&localstatus) >> 2;
144 if (localstatus) 179 if (localstatus)
145 goto ERROR; 180 goto ERROR;
146 len = 2; 181 len = 2;
147 psiconv_debug(lev+2,off,"Indicator (2 bytes): %04x",res); 182 psiconv_debug(config,lev+2,off,"Indicator (2 bytes): %04x",res);
148 } else if ((temp & 0x07) == 0x03) { 183 } else if ((temp & 0x07) == 0x03) {
149 res = psiconv_read_u32(buf,lev+2,off,&localstatus) >> 3; 184 res = psiconv_read_u32(config,buf,lev+2,off,&localstatus) >> 3;
150 if (localstatus) 185 if (localstatus)
151 goto ERROR; 186 goto ERROR;
152 len = 4; 187 len = 4;
153 psiconv_debug(lev+2,off,"Indicator (4 bytes): %08x",res); 188 psiconv_debug(config,lev+2,off,"Indicator (4 bytes): %08x",res);
154 } else { 189 } else {
155 psiconv_warn(lev+2,off,"X indicator: unknown encoding!"); 190 psiconv_warn(config,lev+2,off,"X indicator: unknown encoding!");
156 psiconv_debug(lev+2,off,"Raw data first byte: %02x",temp); 191 psiconv_debug(config,lev+2,off,"Raw data first byte: %02x",temp);
157 goto ERROR; 192 goto ERROR;
158 } 193 }
159 194
160 if (length) 195 if (length)
161 *length = len; 196 *length = len;
162 if (status) 197 if (status)
163 *status = 0; 198 *status = 0;
164 199
165 psiconv_progress(lev+1,off+len-1, 200 psiconv_progress(config,lev+1,off+len-1,
166 "End of X length indicator (total length: %08x)", len); 201 "End of X length indicator (total length: %08x)", len);
167 202
168 return res; 203 return res;
169 204
170ERROR: 205ERROR:
171 psiconv_warn(lev+1,off,"Reading of X indicator failed"); 206 psiconv_warn(config,lev+1,off,"Reading of X indicator failed");
172 if (status) 207 if (status)
173 *status = localstatus; 208 *status = localstatus;
174 if (length) 209 if (length)
175 *length = 0; 210 *length = 0;
176 return 0; 211 return 0;
177} 212}
178 213
179psiconv_length_t psiconv_read_length(const psiconv_buffer buf, int lev, 214psiconv_length_t psiconv_read_length(const psiconv_config config,const psiconv_buffer buf, int lev,
180 psiconv_u32 off, int *length, int *status) 215 psiconv_u32 off, int *length, int *status)
181{ 216{
182 psiconv_length_t res; 217 psiconv_length_t res;
183 int localstatus; 218 int localstatus;
184 219
185 res = (2.54/1440.0) * ((psiconv_s32) psiconv_read_u32(buf,lev,off, 220 res = (2.54/1440.0) * ((psiconv_s32) psiconv_read_u32(config,buf,lev,off,
186 &localstatus)); 221 &localstatus));
187 if (localstatus) { 222 if (localstatus) {
188 psiconv_warn(lev+1,off,"Reading of length failed"); 223 psiconv_warn(config,lev+1,off,"Reading of length failed");
189 if (length) 224 if (length)
190 *length = 0; 225 *length = 0;
191 if (status) 226 if (status)
192 *status = localstatus; 227 *status = localstatus;
193 return 0; 228 return 0;
194 } 229 }
195 psiconv_debug(lev+1,off,"Length: %f",res); 230 psiconv_debug(config,lev+1,off,"Length: %f",res);
196 if (length) 231 if (length)
197 *length = 4; 232 *length = 4;
198 if (status) 233 if (status)
199 *status = 0; 234 *status = 0;
200 return res; 235 return res;
201} 236}
202 237
203psiconv_size_t psiconv_read_size(const psiconv_buffer buf, int lev, 238psiconv_size_t psiconv_read_size(const psiconv_config config,const psiconv_buffer buf, int lev,
204 psiconv_u32 off, int *length, int *status) 239 psiconv_u32 off, int *length, int *status)
205{ 240{
206 psiconv_size_t res; 241 psiconv_size_t res;
207 int localstatus; 242 int localstatus;
208 res = ((psiconv_s32) psiconv_read_u32(buf,lev,off,&localstatus)) / 20.0; 243 res = ((psiconv_s32) psiconv_read_u32(config,buf,lev,off,&localstatus)) / 20.0;
209 if (localstatus) { 244 if (localstatus) {
210 psiconv_warn(lev+1,off,"Reading of size failed"); 245 psiconv_warn(config,lev+1,off,"Reading of size failed");
211 if (length) 246 if (length)
212 *length = 0; 247 *length = 0;
213 if (status) 248 if (status)
214 *status = localstatus; 249 *status = localstatus;
215 return 0; 250 return 0;
216 } 251 }
217 psiconv_debug(lev+1,off,"Size: %f",res); 252 psiconv_debug(config,lev+1,off,"Size: %f",res);
218 if (status) 253 if (status)
219 *status = 0; 254 *status = 0;
220 if (length) 255 if (length)
221 *length = 4; 256 *length = 4;
222 return res; 257 return res;
223} 258}
224 259
225int psiconv_parse_bool(const psiconv_buffer buf, int lev, psiconv_u32 off, 260int psiconv_parse_bool(const psiconv_config config,const psiconv_buffer buf, int lev, psiconv_u32 off,
226 int *length, psiconv_bool_t *result) 261 int *length, psiconv_bool_t *result)
227{ 262{
228 psiconv_u8 temp; 263 psiconv_u8 temp;
229 int localstatus; 264 int localstatus;
230 temp = psiconv_read_u8(buf,lev,off,&localstatus); 265 temp = psiconv_read_u8(config,buf,lev,off,&localstatus);
231 if (localstatus) { 266 if (localstatus) {
232 psiconv_warn(lev+1,off,"Reading of bool failed"); 267 psiconv_warn(config,lev+1,off,"Reading of bool failed");
233 if (length) 268 if (length)
234 *length = 0; 269 *length = 0;
235 return localstatus; 270 return localstatus;
236 } 271 }
237 if (length) 272 if (length)
… …
241 return 0; 276 return 0;
242 } else if (temp == 1) { 277 } else if (temp == 1) {
243 *result = psiconv_bool_true; 278 *result = psiconv_bool_true;
244 return 0; 279 return 0;
245 } 280 }
246 psiconv_warn(lev+1,off,"Unknown value for boolean"); 281 psiconv_warn(config,lev+1,off,"Unknown value for boolean");
247 psiconv_debug(lev+1,off,"Boolean value: %02x",temp); 282 psiconv_debug(config,lev+1,off,"Boolean value: %02x",temp);
248 *result = psiconv_bool_true; 283 *result = psiconv_bool_true;
249 return 0; 284 return 0;
250} 285}
251 286
252psiconv_string_t psiconv_read_string(const psiconv_buffer buf,int lev, 287psiconv_string_t psiconv_read_string(const psiconv_config config,const psiconv_buffer buf,int lev,
253 psiconv_u32 off,int *length, int *status) 288 psiconv_u32 off,int *length, int *status)
254{ 289{
255 int stringlen,i,leng,len,localstatus; 290 int stringlen,i,leng,len,localstatus;
256 psiconv_string_t result; 291 psiconv_string_t result;
257 char *res_copy; 292 char *res_copy;
258 293
259 psiconv_progress(lev+1,off,"Going to read a string"); 294 psiconv_progress(config,lev+1,off,"Going to read a string");
260 295
261 stringlen = psiconv_read_S(buf,lev+2,off,&leng,&localstatus); 296 stringlen = psiconv_read_S(config,buf,lev+2,off,&leng,&localstatus);
262 if (localstatus) 297 if (localstatus)
263 goto ERROR1; 298 goto ERROR1;
264 psiconv_debug(lev+2,off,"Length: %i",stringlen); 299 psiconv_debug(config,lev+2,off,"Length: %i",stringlen);
265 len = leng; 300 len = leng;
266 301
267 result = malloc(stringlen + 1); 302 result = malloc(stringlen + 1);
268 if (!result) 303 if (!result)
269 goto ERROR1; 304 goto ERROR1;
270 for (i = 0; (i < stringlen) && !localstatus; i++) 305 for (i = 0; (i < stringlen) && !localstatus; i++)
271 result[i] = psiconv_read_u8(buf,lev,off+i+len,&localstatus); 306 result[i] = psiconv_read_u8(config,buf,lev,off+i+len,&localstatus);
272 if (localstatus) 307 if (localstatus)
273 goto ERROR2; 308 goto ERROR2;
274 result[stringlen] = 0; 309 result[stringlen] = 0;
275 len += stringlen; 310 len += stringlen;
276 311
277 res_copy = psiconv_make_printable(result); 312 res_copy = psiconv_make_printable(result);
278 if (!res_copy) 313 if (!res_copy)
279 goto ERROR2; 314 goto ERROR2;
280 psiconv_debug(lev+2,off,"Contents: `%s'",res_copy); 315 psiconv_debug(config,lev+2,off,"Contents: `%s'",res_copy);
281 free(res_copy); 316 free(res_copy);
282 317
283 if (length) 318 if (length)
284 *length = len; 319 *length = len;
285 320
286 if (status) 321 if (status)
287 *status = 0; 322 *status = 0;
288 323
289 psiconv_progress(lev+1,off+len-1,"End of string (total length: %08x)",len); 324 psiconv_progress(config,lev+1,off+len-1,"End of string (total length: %08x)",len);
290 325
291 return result; 326 return result;
292 327
293ERROR2: 328ERROR2:
294 free(result); 329 free(result);
295ERROR1: 330ERROR1:
296 psiconv_warn(lev+1,off,"Reading of string failed"); 331 psiconv_warn(config,lev+1,off,"Reading of string failed");
297 if (status) 332 if (status)
298 *status = localstatus; 333 *status = localstatus;
299 if (length) 334 if (length)
300 *length = 0; 335 *length = 0;
301 return NULL; 336 return NULL;
302} 337}
338
339psiconv_string_t psiconv_read_short_string(const psiconv_config config, const psiconv_buffer buf,
340 int lev,
341 psiconv_u32 off,int *length, int *status)
342{
343 int stringlen,i,len,localstatus;
344 psiconv_string_t result;
345 char *res_copy;
346
347 psiconv_progress(config,lev+1,off,"Going to read a short string");
348
349 stringlen = psiconv_read_u8(config,buf,lev+2,off,&localstatus);
350 if (localstatus)
351 goto ERROR1;
352 psiconv_debug(config,lev+2,off,"Length: %i",stringlen);
353 len = 1;
354
355 result = malloc(stringlen + 1);
356 if (!result)
357 goto ERROR1;
358 for (i = 0; (i < stringlen) && !localstatus; i++)
359 result[i] = psiconv_read_u8(config,buf,lev,off+i+len,&localstatus);
360 if (localstatus)
361 goto ERROR2;
362 result[stringlen] = 0;
363 len += stringlen;
364
365 res_copy = psiconv_make_printable(result);
366 if (!res_copy)
367 goto ERROR2;
368 psiconv_debug(config,lev+2,off,"Contents: `%s'",res_copy);
369 free(res_copy);
370
371 if (length)
372 *length = len;
373
374 if (status)
375 *status = 0;
376
377 psiconv_progress(config,lev+1,off+len-1,"End of short string (total length: %08x)",
378 len);
379
380 return result;
381
382
383ERROR2:
384 free(result);
385ERROR1:
386 psiconv_warn(config,lev+1,off,"Reading of short string failed");
387 if (status)
388 *status = localstatus;
389 if (length)
390 *length = 0;
391 return NULL;
392}
393
394psiconv_float_t psiconv_read_float(const psiconv_config config,const psiconv_buffer buf, int lev,
395 psiconv_u32 off, int *length, int *status)
396{
397 psiconv_float_t result,bitvalue;
398 int res,bit;
399 psiconv_u32 temp=0;
400
401 psiconv_progress(config,lev+1,off,"Going to read a float");
402
403 bitvalue = 0.5;
404 result = 1.0;
405 for (bit = 0x33; bit > 0; bit--) {
406 if ((bit == 0x33) || ((bit & 0x07) == 0x07))
407 temp = psiconv_read_u8(config,buf,lev+2,off+ (bit >> 3),&res);
408 if (res)
409 goto ERROR;
410 if (temp & (0x01 << (bit & 0x07)))
411 result += bitvalue;
412 bitvalue /= 2.0;
413 }
414 temp = psiconv_read_u16(config,buf,lev+2,off+6,&res);
415 if (res)
416 goto ERROR;
417 if (temp & 0x8000)
418 result = -result;
419 temp = (temp & 0x7ff0) >> 4;
420 result *= pow2(((int) temp)-0x3ff);
421 psiconv_debug(config,lev+1,off,"Float value: %f",result);
422 if (length)
423 *length = 8;
424 if (*status)
425 *status = res;
426 return result;
427ERROR:
428 psiconv_warn(config,lev+1,off,"Reading of float failed");
429 if (length)
430 *length = 0;
431 if (*status)
432 *status = res;
433 return 0.0;
434}
435
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