static uint32 Load_FindChunk(FILE *fp, uint32 chunk) { uint32 header; uint32 length; while (fread(&header, sizeof(uint32), 1, fp) == 1) { if (fread(&length, sizeof(uint32), 1, fp) != 1) return 0; length = BETOH32(length); if (BETOH32(header) != chunk) { fseek(fp, length + (length & 1), SEEK_CUR); continue; } return length; } return 0; }
static bool Load_Main(FILE *fp) { uint32 position; uint32 length; uint32 header; uint16 version; /* All OpenDUNE / Dune2 savegames should start with 'FORM' */ if (fread(&header, sizeof(uint32), 1, fp) != 1) return false; if (BETOH32(header) != 'FORM') { Error("Invalid magic header in savegame. Not an OpenDUNE / Dune2 savegame."); return false; } /* The total length field, which is ignored */ if (fread(&length, sizeof(uint32), 1, fp) != 1) return false; /* The next 'chunk' is fake, and has no length field */ if (fread(&header, sizeof(uint32), 1, fp) != 1) return false; if (BETOH32(header) != 'SCEN') return false; position = ftell(fp); /* Find the 'INFO' chunk, as it contains the savegame version */ version = 0; length = Load_FindChunk(fp, 'INFO'); if (length == 0) return false; /* Read the savegame version */ if (fread(&version, sizeof(uint16), 1, fp) != 1) return false; length -= 2; if (version == 0) return false; if (version != 0x0290) { /* Get the scenarioID / campaignID */ if (!Info_LoadOld(fp, length)) return false; g_gameMode = GM_RESTART; /* Find the 'PLYR' chunk */ fseek(fp, position, SEEK_SET); length = Load_FindChunk(fp, 'PLYR'); if (length == 0) return false; /* Find the human player */ if (!House_LoadOld(fp, length)) return false; GUI_DisplayModalMessage(String_Get_ByIndex(STR_WARNING_ORIGINAL_SAVED_GAMES_ARE_INCOMPATABLE_WITH_THE_NEW_VERSION_THE_BATTLE_WILL_BE_RESTARTED), 0xFFFF); return true; } /* Load the 'INFO' chunk'. It has to be the first chunk loaded */ if (!Info_Load(fp, length)) return false; /* Rewind, and read other chunks */ fseek(fp, position, SEEK_SET); while (fread(&header, sizeof(uint32), 1, fp) == 1) { if (fread(&length, sizeof(uint32), 1, fp) != 1) return false; length = BETOH32(length); switch (BETOH32(header)) { case 'NAME': break; /* 'NAME' chunk is of no interest to us */ case 'INFO': break; /* 'INFO' chunk is already read */ case 'MAP ': if (!Map_Load (fp, length)) return false; break; case 'PLYR': if (!House_Load (fp, length)) return false; break; case 'UNIT': if (!Unit_Load (fp, length)) return false; break; case 'BLDG': if (!Structure_Load(fp, length)) return false; break; case 'TEAM': if (!Team_Load (fp, length)) return false; break; case 'ODUN': if (!UnitNew_Load (fp, length)) return false; break; default: Error("Unknown chunk in savegame: %c%c%c%c (length: %d). Skipped.\n", header, header >> 8, header >> 16, header >> 24, length); break; } /* Savegames are word aligned */ position += length + 8 + (length & 1); fseek(fp, position, SEEK_SET); } return true; }
0x7A, 0xE8, 0x08, 0x2C, 0x12, 0x97, 0x32, 0xAB, 0xB4, 0x27, 0x0A, 0x23, 0xDF, 0xEF, 0xCA, 0xD9, 0xB8, 0xFA, 0xDC, 0x31, 0x6B, 0xD1, 0xAD, 0x19, 0x49, 0xBD, 0x51, 0x96, 0xEE, 0xE4, 0xA8, 0x41, 0xDA, 0xFF, 0xCD, 0x55, 0x86, 0x36, 0xBE, 0x61, 0x52, 0xF8, 0xBB, 0x0E, 0x82, 0x48, 0x69, 0x9A, 0xE0, 0x47, 0x9E, 0x5C, 0x04, 0x4B, 0x34, 0x15, 0x79, 0x26, 0xA7, 0xDE, 0x29, 0xAE, 0x92, 0xD7, 0x84, 0xE9, 0xD2, 0xBA, 0x5D, 0xF3, 0xC5, 0xB0, 0xBF, 0xA4, 0x3B, 0x71, 0x44, 0x46, 0x2B, 0xFC, 0xEB, 0x6F, 0xD5, 0xF6, 0x14, 0xFE, 0x7C, 0x70, 0x5A, 0x7D, 0xFD, 0x2F, 0x18, 0x83, 0x16, 0xA5, 0x91, 0x1F, 0x05, 0x95, 0x74, 0xA9, 0xC1, 0x5B, 0x4A, 0x85, 0x6D, 0x13, 0x07, 0x4F, 0x4E, 0x45, 0xB2, 0x0F, 0xC9, 0x1C, 0xA6, 0xBC, 0xEC, 0x73, 0x90, 0x7B, 0xCF, 0x59, 0x8F, 0xA1, 0xF9, 0x2D, 0xF2, 0xB1, 0x00, 0x94, 0x37, 0x9F, 0xD0, 0x2E, 0x9C, 0x6E, 0x28, 0x3F, 0x80, 0xF0, 0x3D, 0xD3, 0x25, 0x8A, 0xB5, 0xE7, 0x42, 0xB3, 0xC7, 0xEA, 0xF7, 0x4C, 0x11, 0x33, 0x03, 0xA2, 0xAC, 0x60 }; //Key scheduling constants static const uint32_t c[12] = { BETOH32(0x517CC1B7), BETOH32(0x27220A94), BETOH32(0xFE13ABE8), BETOH32(0xFA9A6EE0), BETOH32(0x6DB14ACC), BETOH32(0x9E21C820), BETOH32(0xFF28B1D5), BETOH32(0xEF5DE2B0), BETOH32(0xDB92371D), BETOH32(0x2126E970), BETOH32(0x03249775), BETOH32(0x04E8C90E) }; //Common interface for encryption algorithms const CipherAlgo ariaCipherAlgo = { "ARIA", sizeof(AriaContext), CIPHER_ALGO_TYPE_BLOCK, ARIA_BLOCK_SIZE, (CipherAlgoInit) ariaInit, NULL, NULL, (CipherAlgoEncryptBlock) ariaEncryptBlock,