| 208 | } |
| 209 | |
| 210 | static bool IsHeaderParentCHD(const chd_header& header, const chd_header& parent_header) |
| 211 | { |
| 212 | static const u8 nullmd5[CHD_MD5_BYTES]{}; |
| 213 | static const u8 nullsha1[CHD_SHA1_BYTES]{}; |
| 214 | |
| 215 | // Check MD5 if it isn't empty. |
| 216 | if (std::memcmp(nullmd5, header.parentmd5, CHD_MD5_BYTES) != 0 && |
| 217 | std::memcmp(nullmd5, parent_header.md5, CHD_MD5_BYTES) != 0 && |
| 218 | std::memcmp(parent_header.md5, header.parentmd5, CHD_MD5_BYTES) != 0) |
| 219 | { |
| 220 | return false; |
| 221 | } |
| 222 | |
| 223 | // Check SHA1 if it isn't empty. |
| 224 | if (std::memcmp(nullsha1, header.parentsha1, CHD_SHA1_BYTES) != 0 && |
| 225 | std::memcmp(nullsha1, parent_header.sha1, CHD_SHA1_BYTES) != 0 && |
| 226 | std::memcmp(parent_header.sha1, header.parentsha1, CHD_SHA1_BYTES) != 0) |
| 227 | { |
| 228 | return false; |
| 229 | } |
| 230 | |
| 231 | return true; |
| 232 | } |
| 233 | |
| 234 | static chd_file* OpenCHD(const std::string& filename, FileSystem::ManagedCFilePtr fp, Error* error, u32 recursion_level) |
| 235 | { |