… | |
… | |
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> |
22 | |
24 | |
23 | #include "parse_routines.h" |
25 | #include "parse_routines.h" |
|
|
26 | #include "error.h" |
24 | |
27 | |
25 | psiconv_u8 psiconv_read_u8(const psiconv_buffer buf,int lev,psiconv_u32 off) |
28 | psiconv_u8 psiconv_read_u8(const psiconv_buffer buf,int lev,psiconv_u32 off, |
|
|
29 | int *status) |
26 | { |
30 | { |
27 | psiconv_u8 *ptr; |
31 | psiconv_u8 *ptr; |
28 | ptr = psiconv_list_get(buf,off); |
32 | ptr = psiconv_list_get(buf,off); |
29 | if (!ptr) |
33 | if (!ptr) { |
30 | psiconv_fatal(lev,off,"Trying byte read past the end of the file"); |
34 | psiconv_warn(lev,off,"Trying byte read past the end of the file"); |
|
|
35 | if (status) |
|
|
36 | *status = -PSICONV_E_PARSE; |
|
|
37 | return 0; |
|
|
38 | } |
|
|
39 | if (status) |
|
|
40 | *status = 0; |
31 | return *ptr; |
41 | return *ptr; |
32 | } |
42 | } |
33 | |
43 | |
34 | psiconv_u16 psiconv_read_u16(const psiconv_buffer buf,int lev,psiconv_u32 off) |
44 | psiconv_u16 psiconv_read_u16(const psiconv_buffer buf,int lev,psiconv_u32 off, |
|
|
45 | int *status) |
35 | { |
46 | { |
36 | psiconv_u8 *ptr0,*ptr1; |
47 | psiconv_u8 *ptr0,*ptr1; |
37 | ptr0 = psiconv_list_get(buf,off); |
48 | ptr0 = psiconv_list_get(buf,off); |
38 | ptr1 = psiconv_list_get(buf,off+1); |
49 | ptr1 = psiconv_list_get(buf,off+1); |
39 | if (!ptr0 || !ptr1) |
50 | if (!ptr0 || !ptr1) { |
40 | psiconv_fatal(lev,off,"Trying word read past the end of the file"); |
51 | psiconv_warn(lev,off,"Trying word read past the end of the file"); |
|
|
52 | if (status) |
|
|
53 | *status = -PSICONV_E_PARSE; |
|
|
54 | return 0; |
|
|
55 | } |
|
|
56 | if (status) |
|
|
57 | *status = 0; |
41 | return *ptr0 + (*ptr1 << 8); |
58 | return *ptr0 + (*ptr1 << 8); |
42 | } |
59 | } |
43 | |
60 | |
44 | psiconv_u32 psiconv_read_u32(const psiconv_buffer buf,int lev,psiconv_u32 off) |
61 | psiconv_u32 psiconv_read_u32(const psiconv_buffer buf,int lev,psiconv_u32 off, |
|
|
62 | int *status) |
45 | { |
63 | { |
46 | psiconv_u8 *ptr0,*ptr1,*ptr2,*ptr3; |
64 | psiconv_u8 *ptr0,*ptr1,*ptr2,*ptr3; |
47 | ptr0 = psiconv_list_get(buf,off); |
65 | ptr0 = psiconv_list_get(buf,off); |
48 | ptr1 = psiconv_list_get(buf,off+1); |
66 | ptr1 = psiconv_list_get(buf,off+1); |
49 | ptr2 = psiconv_list_get(buf,off+2); |
67 | ptr2 = psiconv_list_get(buf,off+2); |
50 | ptr3 = psiconv_list_get(buf,off+3); |
68 | ptr3 = psiconv_list_get(buf,off+3); |
51 | if (!ptr0 || !ptr1 || !ptr2 || !ptr3) |
69 | if (!ptr0 || !ptr1 || !ptr2 || !ptr3) { |
52 | psiconv_fatal(lev,off,"Trying long read past the end of the file"); |
70 | psiconv_warn(lev,off,"Trying long read past the end of the file"); |
|
|
71 | if (status) |
|
|
72 | *status = -PSICONV_E_PARSE; |
|
|
73 | return 0; |
|
|
74 | } |
|
|
75 | if (status) |
|
|
76 | *status = 0; |
53 | return *ptr0 + (*ptr1 << 8) + (*ptr2 << 16) + (*ptr3 << 24); |
77 | return *ptr0 + (*ptr1 << 8) + (*ptr2 << 16) + (*ptr3 << 24); |
54 | } |
78 | } |
55 | |
79 | |
56 | psiconv_S_t psiconv_read_S(const psiconv_buffer buf, int lev, psiconv_u32 off, |
80 | psiconv_S_t psiconv_read_S(const psiconv_buffer buf, int lev, psiconv_u32 off, |
57 | int *length) |
81 | int *length,int *status) |
58 | { |
82 | { |
59 | psiconv_u8 temp; |
83 | psiconv_u8 temp; |
60 | psiconv_S_t res; |
84 | psiconv_S_t res; |
61 | int len; |
85 | int len,localstatus; |
62 | |
86 | |
63 | psiconv_progress(lev+1,off,"Going to read a S length indicator"); |
87 | psiconv_progress(lev+1,off,"Going to read a S length indicator"); |
64 | temp = psiconv_read_u8(buf,lev+2,off); |
88 | temp = psiconv_read_u8(buf,lev+2,off,&localstatus); |
|
|
89 | if (localstatus) |
|
|
90 | goto ERROR; |
65 | if ((temp & 0x03) == 0x02) { |
91 | if ((temp & 0x03) == 0x02) { |
66 | res = psiconv_read_u8(buf,lev+2,off) >> 2; |
92 | res = psiconv_read_u8(buf,lev+2,off,&localstatus) >> 2; |
|
|
93 | if (localstatus) |
|
|
94 | goto ERROR; |
67 | len = 1; |
95 | len = 1; |
68 | psiconv_debug(lev+2,off,"Indicator (1 byte): %02x",res); |
96 | psiconv_debug(lev+2,off,"Indicator (1 byte): %02x",res); |
69 | } else if ((temp & 0x07) == 0x03) { |
97 | } else if ((temp & 0x07) == 0x03) { |
70 | res = psiconv_read_u16(buf,lev+2,off) >> 3; |
98 | res = psiconv_read_u16(buf,lev+2,off,&localstatus) >> 3; |
|
|
99 | if (localstatus) |
|
|
100 | goto ERROR; |
71 | len = 2; |
101 | len = 2; |
72 | psiconv_debug(lev+2,off,"Indicator (2 bytes): %04x",res); |
102 | psiconv_debug(lev+2,off,"Indicator (2 bytes): %04x",res); |
73 | } else { |
103 | } else { |
74 | psiconv_warn(lev+2,off,"S indicator: unknown encoding!"); |
104 | psiconv_warn(lev+2,off,"S indicator: unknown encoding!"); |
75 | psiconv_debug(lev+2,off,"Raw data first byte: %02x",temp); |
105 | psiconv_debug(lev+2,off,"Raw data first byte: %02x",temp); |
76 | res = 0; |
106 | goto ERROR; |
77 | len = 1; |
|
|
78 | } |
107 | } |
79 | |
108 | |
80 | if (length) |
109 | if (length) |
81 | *length = len; |
110 | *length = len; |
|
|
111 | if (status) |
|
|
112 | *status = 0; |
82 | |
113 | |
83 | psiconv_progress(lev+1,off+len-1, |
114 | psiconv_progress(lev+1,off+len-1, |
84 | "End of S length indicator (total length: %08x)", len); |
115 | "End of S length indicator (total length: %08x)", len); |
85 | |
116 | |
86 | return res; |
117 | return res; |
|
|
118 | |
|
|
119 | ERROR: |
|
|
120 | psiconv_warn(lev+1,off,"Reading of S indicator failed"); |
|
|
121 | if (status) |
|
|
122 | *status = localstatus; |
|
|
123 | if (length) |
|
|
124 | *length = 0; |
|
|
125 | return 0; |
87 | } |
126 | } |
88 | |
127 | |
89 | psiconv_X_t psiconv_read_X(const psiconv_buffer buf, int lev, psiconv_u32 off, |
128 | psiconv_X_t psiconv_read_X(const psiconv_buffer buf, int lev, psiconv_u32 off, |
90 | int *length) |
129 | int *length, int *status) |
91 | { |
130 | { |
92 | psiconv_u8 temp; |
131 | psiconv_u8 temp; |
93 | psiconv_X_t res; |
132 | psiconv_X_t res; |
94 | int len; |
133 | int len,localstatus; |
95 | |
134 | |
96 | psiconv_progress(lev+1,off,"Going to read a X length indicator"); |
135 | psiconv_progress(lev+1,off,"Going to read a X length indicator"); |
97 | temp = psiconv_read_u8(buf,lev+2,off); |
136 | temp = psiconv_read_u8(buf,lev+2,off,&localstatus); |
|
|
137 | if (localstatus) |
|
|
138 | goto ERROR; |
98 | if ((temp & 0x01) == 0x00) { |
139 | if ((temp & 0x01) == 0x00) { |
99 | res = psiconv_read_u8(buf,lev+2,off) >> 1; |
140 | res = psiconv_read_u8(buf,lev+2,off,&localstatus) >> 1; |
|
|
141 | if (localstatus) |
|
|
142 | goto ERROR; |
100 | len = 1; |
143 | len = 1; |
101 | psiconv_debug(lev+2,off,"Indicator (1 byte): %02x",res); |
144 | psiconv_debug(lev+2,off,"Indicator (1 byte): %02x",res); |
102 | } else if ((temp & 0x03) == 0x01) { |
145 | } else if ((temp & 0x03) == 0x01) { |
103 | res = psiconv_read_u16(buf,lev+2,off) >> 2; |
146 | res = psiconv_read_u16(buf,lev+2,off,&localstatus) >> 2; |
|
|
147 | if (localstatus) |
|
|
148 | goto ERROR; |
104 | len = 2; |
149 | len = 2; |
105 | psiconv_debug(lev+2,off,"Indicator (2 bytes): %04x",res); |
150 | psiconv_debug(lev+2,off,"Indicator (2 bytes): %04x",res); |
106 | } else if ((temp & 0x07) == 0x03) { |
151 | } else if ((temp & 0x07) == 0x03) { |
107 | res = psiconv_read_u32(buf,lev+2,off) >> 3; |
152 | res = psiconv_read_u32(buf,lev+2,off,&localstatus) >> 3; |
|
|
153 | if (localstatus) |
|
|
154 | goto ERROR; |
108 | len = 4; |
155 | len = 4; |
109 | psiconv_debug(lev+2,off,"Indicator (4 bytes): %08x",res); |
156 | psiconv_debug(lev+2,off,"Indicator (4 bytes): %08x",res); |
110 | } else { |
157 | } else { |
111 | psiconv_warn(lev+2,off,"X indicator: unknown encoding!"); |
158 | psiconv_warn(lev+2,off,"X indicator: unknown encoding!"); |
112 | psiconv_debug(lev+2,off,"Raw data first byte: %02x",temp); |
159 | psiconv_debug(lev+2,off,"Raw data first byte: %02x",temp); |
113 | res = 0; |
160 | goto ERROR; |
114 | len = 1; |
|
|
115 | } |
161 | } |
116 | |
162 | |
117 | if (length) |
163 | if (length) |
118 | *length = len; |
164 | *length = len; |
|
|
165 | if (status) |
|
|
166 | *status = 0; |
119 | |
167 | |
120 | psiconv_progress(lev+1,off+len-1, |
168 | psiconv_progress(lev+1,off+len-1, |
121 | "End of X length indicator (total length: %08x)", len); |
169 | "End of X length indicator (total length: %08x)", len); |
122 | |
170 | |
123 | return res; |
171 | return res; |
|
|
172 | |
|
|
173 | ERROR: |
|
|
174 | psiconv_warn(lev+1,off,"Reading of X indicator failed"); |
|
|
175 | if (status) |
|
|
176 | *status = localstatus; |
|
|
177 | if (length) |
|
|
178 | *length = 0; |
|
|
179 | return 0; |
124 | } |
180 | } |
125 | |
181 | |
126 | psiconv_length_t psiconv_read_length(const psiconv_buffer buf, int lev, |
182 | psiconv_length_t psiconv_read_length(const psiconv_buffer buf, int lev, |
127 | psiconv_u32 off, int *length) |
183 | psiconv_u32 off, int *length, int *status) |
128 | { |
184 | { |
129 | psiconv_length_t res; |
185 | psiconv_length_t res; |
|
|
186 | int localstatus; |
|
|
187 | |
130 | res = (2.54/1440.0) * ((psiconv_s32) psiconv_read_u32(buf,lev,off)); |
188 | res = (2.54/1440.0) * ((psiconv_s32) psiconv_read_u32(buf,lev,off, |
|
|
189 | &localstatus)); |
|
|
190 | if (localstatus) { |
|
|
191 | psiconv_warn(lev+1,off,"Reading of length failed"); |
|
|
192 | if (length) |
|
|
193 | *length = 0; |
|
|
194 | if (status) |
|
|
195 | *status = localstatus; |
|
|
196 | return 0; |
|
|
197 | } |
131 | psiconv_debug(lev+1,off,"Length: %f",res); |
198 | psiconv_debug(lev+1,off,"Length: %f",res); |
|
|
199 | if (length) |
|
|
200 | *length = 4; |
|
|
201 | if (status) |
|
|
202 | *status = 0; |
|
|
203 | return res; |
|
|
204 | } |
|
|
205 | |
|
|
206 | psiconv_size_t psiconv_read_size(const psiconv_buffer buf, int lev, |
|
|
207 | psiconv_u32 off, int *length, int *status) |
|
|
208 | { |
|
|
209 | psiconv_size_t res; |
|
|
210 | int localstatus; |
|
|
211 | res = ((psiconv_s32) psiconv_read_u32(buf,lev,off,&localstatus)) / 20.0; |
|
|
212 | if (localstatus) { |
|
|
213 | psiconv_warn(lev+1,off,"Reading of size failed"); |
|
|
214 | if (length) |
|
|
215 | *length = 0; |
|
|
216 | if (status) |
|
|
217 | *status = localstatus; |
|
|
218 | return 0; |
|
|
219 | } |
|
|
220 | psiconv_debug(lev+1,off,"Size: %f",res); |
|
|
221 | if (status) |
|
|
222 | *status = 0; |
132 | if (length) |
223 | if (length) |
133 | *length = 4; |
224 | *length = 4; |
134 | return res; |
225 | return res; |
135 | } |
226 | } |
136 | |
227 | |
137 | psiconv_size_t psiconv_read_size(const psiconv_buffer buf, int lev, |
|
|
138 | psiconv_u32 off, int *length) |
|
|
139 | { |
|
|
140 | psiconv_size_t res; |
|
|
141 | res = ((psiconv_s32) psiconv_read_u32(buf,lev,off)) / 20.0; |
|
|
142 | psiconv_debug(lev+1,off,"Size: %f",res); |
|
|
143 | if (length) |
|
|
144 | *length = 4; |
|
|
145 | return res; |
|
|
146 | } |
|
|
147 | |
|
|
148 | int psiconv_parse_bool(const psiconv_buffer buf, int lev, psiconv_u32 off, |
228 | int psiconv_parse_bool(const psiconv_buffer buf, int lev, psiconv_u32 off, |
149 | int *length, psiconv_bool_t *result) |
229 | int *length, psiconv_bool_t *result) |
150 | { |
230 | { |
151 | psiconv_u8 temp; |
231 | psiconv_u8 temp; |
|
|
232 | int localstatus; |
152 | temp = psiconv_read_u8(buf,lev,off); |
233 | temp = psiconv_read_u8(buf,lev,off,&localstatus); |
|
|
234 | if (localstatus) { |
|
|
235 | psiconv_warn(lev+1,off,"Reading of bool failed"); |
|
|
236 | if (length) |
|
|
237 | *length = 0; |
|
|
238 | return localstatus; |
|
|
239 | } |
153 | if (length) |
240 | if (length) |
154 | *length = 1; |
241 | *length = 1; |
155 | if (temp == 0) { |
242 | if (temp == 0) { |
156 | *result = psiconv_bool_false; |
243 | *result = psiconv_bool_false; |
157 | return 0; |
244 | return 0; |
… | |
… | |
160 | return 0; |
247 | return 0; |
161 | } |
248 | } |
162 | psiconv_warn(lev+1,off,"Unknown value for boolean"); |
249 | psiconv_warn(lev+1,off,"Unknown value for boolean"); |
163 | psiconv_debug(lev+1,off,"Boolean value: %02x",temp); |
250 | psiconv_debug(lev+1,off,"Boolean value: %02x",temp); |
164 | *result = psiconv_bool_true; |
251 | *result = psiconv_bool_true; |
165 | return -1; |
252 | return 0; |
166 | } |
253 | } |
167 | |
254 | |
168 | psiconv_string_t psiconv_read_string(const psiconv_buffer buf,int lev, |
255 | psiconv_string_t psiconv_read_string(const psiconv_buffer buf,int lev, |
169 | psiconv_u32 off,int *length) |
256 | psiconv_u32 off,int *length, int *status) |
170 | { |
257 | { |
171 | int stringlen,i,leng,len; |
258 | int stringlen,i,leng,len,localstatus; |
172 | psiconv_string_t result; |
259 | psiconv_string_t result; |
173 | char *res_copy; |
260 | char *res_copy; |
174 | |
261 | |
175 | psiconv_progress(lev+1,off,"Going to read a string"); |
262 | psiconv_progress(lev+1,off,"Going to read a string"); |
176 | |
263 | |
177 | stringlen = psiconv_read_S(buf,lev+2,off,&leng); |
264 | stringlen = psiconv_read_S(buf,lev+2,off,&leng,&localstatus); |
|
|
265 | if (localstatus) |
|
|
266 | goto ERROR1; |
178 | psiconv_debug(lev+2,off,"Length: %i",stringlen); |
267 | psiconv_debug(lev+2,off,"Length: %i",stringlen); |
179 | len = leng; |
268 | len = leng; |
180 | |
269 | |
181 | result = malloc(stringlen + 1); |
270 | result = malloc(stringlen + 1); |
|
|
271 | if (!result) |
|
|
272 | goto ERROR1; |
182 | for (i = 0; i < stringlen; i++) |
273 | for (i = 0; (i < stringlen) && !localstatus; i++) |
183 | result[i] = psiconv_read_u8(buf,lev,off+i+len); |
274 | result[i] = psiconv_read_u8(buf,lev,off+i+len,&localstatus); |
|
|
275 | if (localstatus) |
|
|
276 | goto ERROR2; |
184 | result[stringlen] = 0; |
277 | result[stringlen] = 0; |
185 | len += stringlen; |
278 | len += stringlen; |
186 | |
279 | |
187 | res_copy = psiconv_make_printable(result); |
280 | res_copy = psiconv_make_printable(result); |
|
|
281 | if (!res_copy) |
|
|
282 | goto ERROR2; |
188 | psiconv_debug(lev+2,off,"Contents: `%s'",res_copy); |
283 | psiconv_debug(lev+2,off,"Contents: `%s'",res_copy); |
189 | free(res_copy); |
284 | free(res_copy); |
190 | |
285 | |
191 | if (length) |
286 | if (length) |
192 | *length = len; |
287 | *length = len; |
193 | |
288 | |
|
|
289 | if (status) |
|
|
290 | *status = 0; |
|
|
291 | |
194 | psiconv_progress(lev+1,off+len-1,"End of string (total length: %08x)",len); |
292 | psiconv_progress(lev+1,off+len-1,"End of string (total length: %08x)",len); |
195 | |
293 | |
196 | return result; |
294 | return result; |
|
|
295 | |
|
|
296 | ERROR2: |
|
|
297 | free(result); |
|
|
298 | ERROR1: |
|
|
299 | psiconv_warn(lev+1,off,"Reading of string failed"); |
|
|
300 | if (status) |
|
|
301 | *status = localstatus; |
|
|
302 | if (length) |
|
|
303 | *length = 0; |
|
|
304 | return NULL; |
197 | } |
305 | } |