(/home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c) |
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| 316 | | | libpcap_write_interface_description_block(FILE *fp, |
| 317 | | | char *name, |
| 318 | | | char *filter, |
| 319 | | | int link_type, |
| 320 | | | int snap_len, |
| 321 | | | long *bytes_written, |
| 322 | | | int *err) |
| 323 | | | { |
| 324 | | | struct idb idb; |
| 325 | | | struct option option; |
| 326 | | | guint32 block_total_length; |
| 327 | | | const guint32 padding = 0; |
| 328 | | | |
| 329 | | | block_total_length = sizeof(struct idb) + sizeof(guint32); |
| 330 | | | if ((strlen(name) > 0) && (strlen(name) < G_MAXUINT16)) {
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 331 | | | block_total_length += sizeof(struct option) + |
| 332 | | | (guint16)(ADD_PADDING(strlen(name) + 1)); |
| 333 | | | } |
| 334 | | | if ((strlen(filter) > 0) && (strlen(name) < G_MAXUINT16)) {
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 335 | | | block_total_length += sizeof(struct option) + |
| 336 | | | (guint16)(ADD_PADDING(strlen(filter) + 1)); |
| 337 | | | } |
| 338 | | | if (((strlen(name) > 0) && (strlen(name) < G_MAXUINT16)) ||
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 339 | | | ((strlen(filter) > 0) && (strlen(name) < G_MAXUINT16))) {
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 340 | | | block_total_length += sizeof(struct option); |
| 341 | | | } |
| 342 | | | |
| 343 | | | idb.block_type = INTERFACE_DESCRIPTION_BLOCK_TYPE;
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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130 | #define INTERFACE_DESCRIPTION_BLOCK_TYPE 0x00000001 |
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| 344 | | | idb.block_total_length = block_total_length; |
| 345 | | | idb.link_type = link_type; |
| 346 | | | idb.reserved = 0; |
| 347 | | | idb.snap_len = snap_len; |
| 348 | | | WRITE_DATA(fp, &idb, sizeof(struct idb), *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 349 | | | |
| 350 | | | if ((strlen(name) > 0) && (strlen(name) < G_MAXUINT16)) {
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 351 | | | option.type = IDB_NAME; |
| 352 | | | option.value_length = (guint16)(strlen(name) + 1); |
| 353 | | | WRITE_DATA(fp, &option, sizeof(struct option), *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 354 | | | WRITE_DATA(fp, name, strlen(name) + 1, *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 355 | | | if ((strlen(name) + 1) % 4) { |
| 356 | | | WRITE_DATA(fp, &padding, 4 - (strlen(name) + 1) % 4 , *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 357 | | | } |
| 358 | | | } |
| 359 | | | |
| 360 | | | if ((strlen(filter) > 0) && (strlen(filter) < G_MAXUINT16)) {
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 361 | | | option.type = IDB_FILTER; |
| 362 | | | option.value_length = (guint16)(strlen(filter) + 1); |
| 363 | | | WRITE_DATA(fp, &option, sizeof(struct option), *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 364 | | | WRITE_DATA(fp, filter, strlen(filter) + 1, *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 365 | | | if ((strlen(filter) + 1) % 4) { |
| 366 | | | WRITE_DATA(fp, &padding, 4 - (strlen(filter) + 1) % 4 , *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 367 | | | } |
| 368 | | | } |
| 369 | | | |
| 370 | | | if (((strlen(name) > 0) && (strlen(name) < G_MAXUINT16)) ||
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 371 | | | ((strlen(filter) > 0) && (strlen(filter) < G_MAXUINT16))) {
x /usr/include/glib-2.0/glib/gtypes.h |
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68 | #define G_MAXUINT16 ((guint16) 0xffff) |
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| 372 | | | option.type = OPT_ENDOFOPT; |
Unreachable Computation
The highlighted code will not execute under any circumstances. This may be because of: |
|
| 373 | | | option.value_length = 0; |
| 374 | | | WRITE_DATA(fp, &option, sizeof(struct option), *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 375 | | | } |
| 376 | | | |
| 377 | | | WRITE_DATA(fp, &block_total_length, sizeof(guint32), *bytes_written, err);
x /home/sate/Testcases/c/cve/wireshark-1.2.0/pcapio.c |
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173 | #define WRITE_DATA(file_pointer, data_pointer, data_length, written_length, error_pointer) \ |
174 | { \ |
175 | do { \ |
176 | size_t nwritten; \ |
177 | \ |
178 | nwritten = fwrite(data_pointer, 1, data_length, file_pointer); \ |
179 | if (nwritten != data_length) { \ |
180 | if (nwritten == 0 && ferror(file_pointer)) { \ |
181 | *error_pointer = errno; \ |
182 | } else { \ |
183 | *error_pointer = 0; \ |
184 | } \ |
185 | fclose(file_pointer); \ |
186 | return FALSE; \ |
187 | } \ |
188 | written_length += (long)nwritten; \ |
189 | } while (0); \ |
190 | } |
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| 378 | | | return TRUE; |
| 379 | | | } |
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