Fix some errors found by fuzzers #2078

IvanNardi · 2023-09-09T16:41:31Z

Fix compilation on Windows.
"dirent.h" has been taken from https://github.com/tronkko/dirent/

Fix Python bindings

Fix some warnings with x86_64-w64-mingw32-gcc:

protocols/dns.c: In function ‘ndpi_search_dns’:
protocols/dns.c:775:41: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
  775 |       unsigned long first_element_len = (unsigned long)dot - (unsigned long)_hostname;
      |                                         ^
protocols/dns.c:775:62: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
  775 |       unsigned long first_element_len = (unsigned long)dot - (unsigned long)_hostname;
      |

In file included from ndpi_bitmap64.c:31:
third_party/include/binaryfusefilter.h: In function ‘binary_fuse8_hash’:
third_party/include/binaryfusefilter.h:160:32: error: left shift count >= width of type [-Werror=shift-count-overflow]
  160 |     uint64_t hh = hash & ((1UL << 36) - 1);

In function ‘ndpi_match_custom_category’,
    inlined from ‘ndpi_fill_protocol_category.part.0’ at ndpi_main.c:7056:16:
ndpi_main.c:3419:3: error: ‘strncpy’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
 3419 |   strncpy(buf, name, name_len);

Fix compilation on Windows. "dirent.h" file has been taken from https://github.com/tronkko/dirent/ Fix Python bindings Fix some warnings with x86_64-w64-mingw32-gcc: ``` protocols/dns.c: In function ‘ndpi_search_dns’: protocols/dns.c:775:41: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] 775 | unsigned long first_element_len = (unsigned long)dot - (unsigned long)_hostname; | ^ protocols/dns.c:775:62: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] 775 | unsigned long first_element_len = (unsigned long)dot - (unsigned long)_hostname; | ``` ``` In file included from ndpi_bitmap64.c:31: third_party/include/binaryfusefilter.h: In function ‘binary_fuse8_hash’: third_party/include/binaryfusefilter.h:160:32: error: left shift count >= width of type [-Werror=shift-count-overflow] 160 | uint64_t hh = hash & ((1UL << 36) - 1); ``` ``` In function ‘ndpi_match_custom_category’, inlined from ‘ndpi_fill_protocol_category.part.0’ at ndpi_main.c:7056:16: ndpi_main.c:3419:3: error: ‘strncpy’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=] 3419 | strncpy(buf, name, name_len); ```