vdf: Migrated to new, improved unpacked archiver infrastructure.
This commit is contained in:
Ryan C. Gordon
parent
eefc757398
commit
c1defd3ec4
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@ -11,499 +11,127 @@
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#define __PHYSICSFS_INTERNAL__
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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#include "physfs_internal.h"
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#include <time.h>
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#include <ctype.h>
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#if PHYSFS_SUPPORTS_VDF
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#if PHYSFS_SUPPORTS_VDF
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#define VDF_HEADER_COMMENT_LENGTH 256
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#include <time.h>
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#define VDF_HEADER_SIGNATURE_LENGTH 16
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#define VDF_ENTRY_NAME_LENGTH 64
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#define VDF_ENTRY_DIR 0x80000000
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#define VDF_ENTRY_LAST 0x40000000
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#define VDF_CRC16 0x8005
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#define VDF_COMMENT_LENGTH 256
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#define VDF_HASHTABLE_SIZE 65536
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#define VDF_SIGNATURE_LENGTH 16
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#define VDF_ENTRY_NAME_LENGTH 64
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static const char* VDF_SIGNATURE_G1 = "PSVDSC_V2.00\r\n\r\n";
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static const char* VDF_SIGNATURE_G1 = "PSVDSC_V2.00\r\n\r\n";
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static const char* VDF_SIGNATURE_G2 = "PSVDSC_V2.00\n\r\n\r";
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static const char* VDF_SIGNATURE_G2 = "PSVDSC_V2.00\n\r\n\r";
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typedef union
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static inline int readui32(PHYSFS_Io *io, PHYSFS_uint32 *val)
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{
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{
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PHYSFS_uint32 raw;
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PHYSFS_uint32 v;
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struct
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BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &v, sizeof (v)), 0);
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{
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*val = PHYSFS_swapULE32(v);
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PHYSFS_uint32 seconds : 5;
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return 1;
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PHYSFS_uint32 minutes : 6;
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} /* readui32 */
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PHYSFS_uint32 hour : 5;
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PHYSFS_uint32 day : 5;
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PHYSFS_uint32 month : 4;
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PHYSFS_uint32 year : 7;
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} members;
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} VdfTimestamp;
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typedef struct
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static PHYSFS_sint64 vdfDosTimeToEpoch(const PHYSFS_uint32 dostime)
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{
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{
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char comment[VDF_HEADER_COMMENT_LENGTH];
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/* VDF stores timestamps as 32bit DOS dates: the seconds are counted in
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char signature[VDF_HEADER_SIGNATURE_LENGTH];
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2-seconds intervals and the years are counted since 1 Jan. 1980 */
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PHYSFS_uint32 numEntries;
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struct tm t;
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PHYSFS_uint32 numFiles;
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memset(&t, '\0', sizeof (t));
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VdfTimestamp timestamp;
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t.tm_year = ((int) ((dostime >> 25) & 0x7F)) + 80; /* 1980 to 1900 */
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PHYSFS_uint32 dataSize;
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t.tm_mon = ((int) ((dostime >> 21) & 0xF)) - 1; /* 1-12 to 0-11 */
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PHYSFS_uint32 rootCatOffset;
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t.tm_mday = (int) ((dostime >> 16) & 0x1F);
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PHYSFS_uint32 version;
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t.tm_hour = (int) ((dostime >> 11) & 0x1F);
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} VdfHeader;
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t.tm_min = (int) ((dostime >> 5) & 0x3F);
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t.tm_sec = ((int) ((dostime >> 0) & 0x1F)) * 2; /* 2 seconds to 1. */
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typedef struct
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return (PHYSFS_sint64) mktime(&t);
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{
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char name[VDF_ENTRY_NAME_LENGTH];
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PHYSFS_uint32 jump;
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PHYSFS_uint32 size;
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PHYSFS_uint32 type;
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PHYSFS_uint32 attributes;
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} VdfEntryInfo;
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typedef struct _VdfLinkedList
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{
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VdfEntryInfo *entry;
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struct _VdfLinkedList *next, *prev;
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} VdfLinkedList;
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typedef struct
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{
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VdfEntryInfo *entries;
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int numEntries;
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VdfLinkedList *table[VDF_HASHTABLE_SIZE];
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PHYSFS_sint64 timestamp;
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PHYSFS_Io *io;
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} VdfRecord;
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typedef struct
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{
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PHYSFS_Io *io;
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VdfEntryInfo *entry;
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PHYSFS_uint32 curPos;
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} VdfFileinfo;
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static const PHYSFS_uint16 vdfCrcTable[256] =
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{
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0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF,
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0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7,
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0x0919, 0x1890, 0x2A0B, 0x3B82, 0x4F3D, 0x5EB4, 0x6C2F, 0x7DA6,
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0x8551, 0x94D8, 0xA643, 0xB7CA, 0xC375, 0xD2FC, 0xE067, 0xF1EE,
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0x1232, 0x03BB, 0x3120, 0x20A9, 0x5416, 0x459F, 0x7704, 0x668D,
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0x9E7A, 0x8FF3, 0xBD68, 0xACE1, 0xD85E, 0xC9D7, 0xFB4C, 0xEAC5,
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0x1B2B, 0x0AA2, 0x3839, 0x29B0, 0x5D0F, 0x4C86, 0x7E1D, 0x6F94,
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0x9763, 0x86EA, 0xB471, 0xA5F8, 0xD147, 0xC0CE, 0xF255, 0xE3DC,
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0x2464, 0x35ED, 0x0776, 0x16FF, 0x6240, 0x73C9, 0x4152, 0x50DB,
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0xA82C, 0xB9A5, 0x8B3E, 0x9AB7, 0xEE08, 0xFF81, 0xCD1A, 0xDC93,
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0x2D7D, 0x3CF4, 0x0E6F, 0x1FE6, 0x6B59, 0x7AD0, 0x484B, 0x59C2,
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0xA135, 0xB0BC, 0x8227, 0x93AE, 0xE711, 0xF698, 0xC403, 0xD58A,
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0x3656, 0x27DF, 0x1544, 0x04CD, 0x7072, 0x61FB, 0x5360, 0x42E9,
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0xBA1E, 0xAB97, 0x990C, 0x8885, 0xFC3A, 0xEDB3, 0xDF28, 0xCEA1,
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0x3F4F, 0x2EC6, 0x1C5D, 0x0DD4, 0x796B, 0x68E2, 0x5A79, 0x4BF0,
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0xB307, 0xA28E, 0x9015, 0x819C, 0xF523, 0xE4AA, 0xD631, 0xC7B8,
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0x48C8, 0x5941, 0x6BDA, 0x7A53, 0x0EEC, 0x1F65, 0x2DFE, 0x3C77,
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0xC480, 0xD509, 0xE792, 0xF61B, 0x82A4, 0x932D, 0xA1B6, 0xB03F,
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0x41D1, 0x5058, 0x62C3, 0x734A, 0x07F5, 0x167C, 0x24E7, 0x356E,
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0xCD99, 0xDC10, 0xEE8B, 0xFF02, 0x8BBD, 0x9A34, 0xA8AF, 0xB926,
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0x5AFA, 0x4B73, 0x79E8, 0x6861, 0x1CDE, 0x0D57, 0x3FCC, 0x2E45,
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0xD6B2, 0xC73B, 0xF5A0, 0xE429, 0x9096, 0x811F, 0xB384, 0xA20D,
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0x53E3, 0x426A, 0x70F1, 0x6178, 0x15C7, 0x044E, 0x36D5, 0x275C,
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0xDFAB, 0xCE22, 0xFCB9, 0xED30, 0x998F, 0x8806, 0xBA9D, 0xAB14,
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0x6CAC, 0x7D25, 0x4FBE, 0x5E37, 0x2A88, 0x3B01, 0x099A, 0x1813,
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0xE0E4, 0xF16D, 0xC3F6, 0xD27F, 0xA6C0, 0xB749, 0x85D2, 0x945B,
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0x65B5, 0x743C, 0x46A7, 0x572E, 0x2391, 0x3218, 0x0083, 0x110A,
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0xE9FD, 0xF874, 0xCAEF, 0xDB66, 0xAFD9, 0xBE50, 0x8CCB, 0x9D42,
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0x7E9E, 0x6F17, 0x5D8C, 0x4C05, 0x38BA, 0x2933, 0x1BA8, 0x0A21,
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0xF2D6, 0xE35F, 0xD1C4, 0xC04D, 0xB4F2, 0xA57B, 0x97E0, 0x8669,
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0x7787, 0x660E, 0x5495, 0x451C, 0x31A3, 0x202A, 0x12B1, 0x0338,
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0xFBCF, 0xEA46, 0xD8DD, 0xC954, 0xBDEB, 0xAC62, 0x9EF9, 0x8F70
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};
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/*
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* Performs a case-insensitive CRC16 sum.
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*/
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static PHYSFS_uint16 vdfGenCrc16(const char *c_ptr)
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{
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PHYSFS_uint16 crc = 0xFFFF;
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while (*c_ptr)
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crc = (crc << 8) ^ vdfCrcTable[((crc >> 8) ^ toupper((int)(*c_ptr++)))];
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return crc;
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} /* vdfGenCrc16 */
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static PHYSFS_sint64 VDF_read(PHYSFS_Io *io, void *buffer, PHYSFS_uint64 len)
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{
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VdfFileinfo *finfo = (VdfFileinfo *)io->opaque;
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const VdfEntryInfo *entry = finfo->entry;
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const PHYSFS_uint64 bytesLeft = (PHYSFS_uint64)(entry->size - finfo->curPos);
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PHYSFS_sint64 rc;
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if (bytesLeft < len)
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len = bytesLeft;
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rc = finfo->io->read(finfo->io, buffer, len);
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if (rc > 0)
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finfo->curPos += (PHYSFS_uint32)rc;
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return rc;
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} /* VDF_read */
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static PHYSFS_sint64 VDF_write(PHYSFS_Io *io, const void *b, PHYSFS_uint64 len)
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{
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BAIL(PHYSFS_ERR_READ_ONLY, -1);
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} /* VDF_write */
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static PHYSFS_sint64 VDF_tell(PHYSFS_Io *io)
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{
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return ((VdfFileinfo *)io->opaque)->curPos;
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} /* VDF_tell */
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static int VDF_seek(PHYSFS_Io *io, PHYSFS_uint64 offset)
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{
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VdfFileinfo *finfo = (VdfFileinfo *)io->opaque;
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const VdfEntryInfo *entry = finfo->entry;
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int rc;
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BAIL_IF(offset >= entry->size, PHYSFS_ERR_PAST_EOF, 0);
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rc = finfo->io->seek(finfo->io, entry->jump + offset);
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if (rc)
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finfo->curPos = (PHYSFS_uint32)offset;
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return rc;
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} /* VDF_seek */
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static PHYSFS_sint64 VDF_length(PHYSFS_Io *io)
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{
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const VdfFileinfo *finfo = (VdfFileinfo *)io->opaque;
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return ((PHYSFS_sint64)finfo->entry->size);
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} /* VDF_length */
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static PHYSFS_Io *VDF_duplicate(PHYSFS_Io *_io)
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{
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VdfFileinfo *origfinfo = (VdfFileinfo *)_io->opaque;
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PHYSFS_Io *io = NULL;
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PHYSFS_Io *retval = (PHYSFS_Io *)allocator.Malloc(sizeof(PHYSFS_Io));
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VdfFileinfo *finfo = (VdfFileinfo *)allocator.Malloc(sizeof(VdfFileinfo));
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GOTO_IF(!retval, PHYSFS_ERR_OUT_OF_MEMORY, VDF_duplicate_failed);
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GOTO_IF(!finfo, PHYSFS_ERR_OUT_OF_MEMORY, VDF_duplicate_failed);
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io = origfinfo->io->duplicate(origfinfo->io);
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if (!io) goto VDF_duplicate_failed;
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finfo->io = io;
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finfo->entry = origfinfo->entry;
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finfo->curPos = 0;
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memcpy(retval, _io, sizeof(PHYSFS_Io));
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retval->opaque = finfo;
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return retval;
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VDF_duplicate_failed:
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if (finfo != NULL) allocator.Free(finfo);
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if (retval != NULL) allocator.Free(retval);
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if (io != NULL) io->destroy(io);
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return NULL;
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} /* VDF_duplicate */
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static int VDF_flush(PHYSFS_Io *io) { return 1; /* no write support. */ }
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static void VDF_destroy(PHYSFS_Io *io)
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{
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VdfFileinfo *finfo = (VdfFileinfo *)io->opaque;
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finfo->io->destroy(finfo->io);
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allocator.Free(finfo);
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allocator.Free(io);
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} /* VDF_destroy */
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static const PHYSFS_Io VDF_Io =
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{
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CURRENT_PHYSFS_IO_API_VERSION, NULL,
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VDF_read,
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VDF_write,
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VDF_seek,
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VDF_tell,
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VDF_length,
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VDF_duplicate,
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VDF_flush,
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VDF_destroy
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};
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/*
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* VDF stores timestamps as 32bit DOS dates:
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* the seconds are counted in 2-seconds intervals
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* and the years are counted since 1 Jan. 1980
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*/
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static PHYSFS_sint64 vdfDosTimeToEpoch(VdfTimestamp time)
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{
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struct tm t = { 0 };
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t.tm_year = time.members.year + 80;
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t.tm_mon = time.members.month - 1; /* DOS time counts months 1-12, we need 0-11 */
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t.tm_mday = time.members.day;
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t.tm_hour = time.members.hour;
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t.tm_min = time.members.minutes;
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t.tm_sec = time.members.seconds * 2;
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return (PHYSFS_sint64)difftime(mktime(&t), 0);
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} /* vdfDosTimeToEpoch */
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} /* vdfDosTimeToEpoch */
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/*
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* Sets the last bytes to zero until we find a non-empty character
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* FIXME: May corrupt filenames which are actually 64 bytes long!
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*/
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static void vdfTruncateFilename(char *s, PHYSFS_uint32 *nameLength)
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{
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int i;
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s[VDF_ENTRY_NAME_LENGTH - 1] = '\0';
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static int vdfLoadEntries(PHYSFS_Io *io, const PHYSFS_uint32 count,
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for (i = VDF_ENTRY_NAME_LENGTH - 2; i > 0; i--) {
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const PHYSFS_sint64 t, void *arc)
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if (isspace((int) s[i]))
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{
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PHYSFS_uint32 i;
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for (i = 0; i < count; i++)
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{
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char name[VDF_ENTRY_NAME_LENGTH + 1];
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int namei;
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PHYSFS_uint32 jump, size, type, attr;
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BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, name, sizeof (name) - 1), 0);
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BAIL_IF_ERRPASS(!readui32(io, &jump), 0);
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BAIL_IF_ERRPASS(!readui32(io, &size), 0);
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BAIL_IF_ERRPASS(!readui32(io, &type), 0);
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BAIL_IF_ERRPASS(!readui32(io, &attr), 0);
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/* Trim whitespace off the end of the filename */
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name[VDF_ENTRY_NAME_LENGTH] = '\0'; /* always null-terminated. */
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for (namei = VDF_ENTRY_NAME_LENGTH - 1; namei >= 0; namei--)
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{
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{
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s[i] = '\0';
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if (name[namei] == ' ')
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} /* if */
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name[namei] = '\0';
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else
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else
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{
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break;
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break;
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} /* else */
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} /* for */
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i = 0;
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while (s[i])
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{
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i++;
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} /* while */
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*nameLength = i;
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} /* vdfTruncateFilename */
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/*
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* Compares two strings in a case-insensitive way
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* Returns 0 if they are equal, 1 otherwise
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*/
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static int vdfStrcmp(const char *a, const char *b)
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{
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while (*a && *b)
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{
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if (toupper((int) *a) != toupper((int) *b)) return 1;
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a++;
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b++;
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} /* while */
|
|
||||||
if (*a == 0 && *b == 0) return 0;
|
|
||||||
return 1;
|
|
||||||
} /* vdfStrcmp */
|
|
||||||
|
|
||||||
/* Adds an entry to the hashtable */
|
|
||||||
static void vdfAddEntry(VdfRecord *record, VdfEntryInfo *entry)
|
|
||||||
{
|
|
||||||
PHYSFS_uint16 hash = vdfGenCrc16(entry->name);
|
|
||||||
VdfLinkedList *list = record->table[hash];
|
|
||||||
if (list == NULL)
|
|
||||||
{
|
|
||||||
list = (VdfLinkedList*)allocator.Malloc(sizeof(VdfLinkedList));
|
|
||||||
list->next = NULL;
|
|
||||||
list->prev = NULL;
|
|
||||||
list->entry = entry;
|
|
||||||
record->table[hash] = list;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
VdfLinkedList *newElement = (VdfLinkedList*)allocator.Malloc(sizeof(VdfLinkedList));
|
|
||||||
newElement->next = list;
|
|
||||||
newElement->prev = NULL;
|
|
||||||
list->prev = newElement;
|
|
||||||
newElement->entry = entry;
|
|
||||||
record->table[hash] = newElement;
|
|
||||||
}
|
|
||||||
} /* vdfAddEntry */
|
|
||||||
|
|
||||||
static VdfRecord *vdfLoadRecord(PHYSFS_Io *io, VdfHeader header)
|
|
||||||
{
|
|
||||||
VdfRecord *record = (VdfRecord*)allocator.Malloc(sizeof(VdfRecord));
|
|
||||||
VdfEntryInfo *entries;
|
|
||||||
VdfEntryInfo *entry;
|
|
||||||
|
|
||||||
BAIL_IF(!record, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
|
|
||||||
|
|
||||||
entries = (VdfEntryInfo *)allocator.Malloc(sizeof(VdfEntryInfo) * header.numEntries);
|
|
||||||
GOTO_IF(!entries, PHYSFS_ERR_OUT_OF_MEMORY, failed);
|
|
||||||
|
|
||||||
if (!__PHYSFS_readAll(io, entries, sizeof(VdfEntryInfo) * header.numEntries)) goto failed;
|
|
||||||
|
|
||||||
record->timestamp = vdfDosTimeToEpoch(header.timestamp);
|
|
||||||
record->numEntries = header.numEntries;
|
|
||||||
record->entries = entries;
|
|
||||||
memset(record->table, 0, sizeof(record->table));
|
|
||||||
|
|
||||||
for (entry = entries; header.numEntries > 0; header.numEntries--, entry++)
|
|
||||||
{
|
|
||||||
PHYSFS_uint32 len;
|
|
||||||
entry->jump = PHYSFS_swapULE32(entry->jump);
|
|
||||||
entry->size = PHYSFS_swapULE32(entry->size);
|
|
||||||
entry->type = PHYSFS_swapULE32(entry->type);
|
|
||||||
entry->attributes = PHYSFS_swapULE32(entry->attributes);
|
|
||||||
vdfTruncateFilename(entry->name, &len);
|
|
||||||
vdfAddEntry(record, entry);
|
|
||||||
} /* for */
|
|
||||||
|
|
||||||
return record;
|
|
||||||
|
|
||||||
failed:
|
|
||||||
if (!record) allocator.Free(record);
|
|
||||||
if (!entries) allocator.Free(entries);
|
|
||||||
return NULL;
|
|
||||||
} /* vdfLoadList */
|
|
||||||
|
|
||||||
|
|
||||||
static void VDF_enumerateFiles(void *opaque, const char *dname,
|
|
||||||
PHYSFS_EnumFilesCallback cb,
|
|
||||||
const char *origdir, void *callbackdata)
|
|
||||||
{
|
|
||||||
const VdfRecord *record = (const VdfRecord *)opaque;
|
|
||||||
if (strcmp(dname, "") == 0)
|
|
||||||
{
|
|
||||||
int i;
|
|
||||||
for (i = 0; i < VDF_HASHTABLE_SIZE; i++)
|
|
||||||
{
|
|
||||||
VdfLinkedList *list = record->table[i];
|
|
||||||
while (list)
|
|
||||||
{
|
|
||||||
cb(callbackdata, origdir, list->entry->name);
|
|
||||||
list = list->next;
|
|
||||||
} /* while */
|
|
||||||
} /* for */
|
} /* for */
|
||||||
} /* if */
|
|
||||||
} /* VDF_enumerateFiles */
|
|
||||||
|
|
||||||
/* Retrieves a file from the hashtable */
|
BAIL_IF(!name[0], PHYSFS_ERR_CORRUPT, 0);
|
||||||
static int vdfFindFile(const VdfRecord *record, const char *filename, VdfEntryInfo *outEntry)
|
|
||||||
{
|
|
||||||
VdfLinkedList *list = record->table[vdfGenCrc16(filename)];
|
|
||||||
while (list)
|
|
||||||
{
|
|
||||||
if (vdfStrcmp(list->entry->name, filename) == 0 && !(list->entry->type & VDF_ENTRY_DIR))
|
|
||||||
{
|
|
||||||
*outEntry = *(list->entry);
|
|
||||||
return 1;
|
|
||||||
} /* if */
|
|
||||||
list = list->next;
|
|
||||||
} /* while */
|
|
||||||
return 0;
|
|
||||||
} /* vdfFindFile */
|
|
||||||
|
|
||||||
static int VDF_stat(void *opaque, const char *filename, PHYSFS_Stat *stat)
|
/* !!! FIXME: we assume the filenames are low-ASCII; if they use
|
||||||
{
|
any high-ASCII chars, they will be invalid UTF-8. */
|
||||||
const VdfRecord *record = (const VdfRecord *)opaque;
|
|
||||||
VdfEntryInfo entry;
|
|
||||||
if (vdfFindFile(record, filename, &entry))
|
|
||||||
{
|
|
||||||
stat->readonly = 1;
|
|
||||||
stat->accesstime = -1;
|
|
||||||
stat->createtime = record->timestamp;
|
|
||||||
stat->modtime = record->timestamp;
|
|
||||||
stat->filesize = entry.size;
|
|
||||||
stat->filetype = PHYSFS_FILETYPE_REGULAR;
|
|
||||||
|
|
||||||
return 1;
|
BAIL_IF_ERRPASS(!UNPK_addEntry(arc, name, 0, t, t, jump, size), 0);
|
||||||
} /* if */
|
} /* for */
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
} /* vdfLoadEntries */
|
||||||
|
|
||||||
return 0;
|
|
||||||
} /* VDF_stat */
|
|
||||||
|
|
||||||
static void *VDF_openArchive(PHYSFS_Io *io, const char *name, int forWriting)
|
static void *VDF_openArchive(PHYSFS_Io *io, const char *name, int forWriting)
|
||||||
{
|
{
|
||||||
VdfHeader header;
|
PHYSFS_uint8 ignore[16];
|
||||||
VdfRecord *record = NULL;
|
PHYSFS_uint8 sig[VDF_SIGNATURE_LENGTH];
|
||||||
|
PHYSFS_uint32 count, timestamp, version, dataSize, rootCatOffset;
|
||||||
|
void *unpkarc;
|
||||||
|
|
||||||
assert(io != NULL); /* shouldn't ever happen. */
|
assert(io != NULL); /* shouldn't ever happen. */
|
||||||
|
|
||||||
BAIL_IF(forWriting, PHYSFS_ERR_READ_ONLY, NULL);
|
BAIL_IF(forWriting, PHYSFS_ERR_READ_ONLY, NULL);
|
||||||
BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &header, sizeof(VdfHeader)), NULL);
|
|
||||||
|
|
||||||
header.numEntries = PHYSFS_swapULE32(header.numEntries);
|
/* skip the 256-byte comment field. */
|
||||||
header.numFiles = PHYSFS_swapULE32(header.numFiles);
|
BAIL_IF_ERRPASS(!io->seek(io, VDF_COMMENT_LENGTH), NULL);
|
||||||
header.timestamp.raw = PHYSFS_swapULE32(header.timestamp.raw);
|
|
||||||
header.dataSize = PHYSFS_swapULE32(header.dataSize);
|
|
||||||
header.rootCatOffset = PHYSFS_swapULE32(header.rootCatOffset);
|
|
||||||
header.version = PHYSFS_swapULE32(header.version);
|
|
||||||
|
|
||||||
BAIL_IF(header.version != 0x50, PHYSFS_ERR_UNSUPPORTED, NULL);
|
BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, sig, sizeof (sig)), NULL);
|
||||||
|
BAIL_IF_ERRPASS(!readui32(io, &count), NULL);
|
||||||
|
BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, ignore, 4), NULL); /* numFiles */
|
||||||
|
BAIL_IF_ERRPASS(!readui32(io, ×tamp), NULL);
|
||||||
|
BAIL_IF_ERRPASS(!readui32(io, &dataSize), NULL); /* dataSize */
|
||||||
|
BAIL_IF_ERRPASS(!readui32(io, &rootCatOffset), NULL); /* rootCatOff */
|
||||||
|
BAIL_IF_ERRPASS(!readui32(io, &version), NULL);
|
||||||
|
|
||||||
if ((memcmp(header.signature, VDF_SIGNATURE_G1, VDF_HEADER_SIGNATURE_LENGTH) != 0) &&
|
BAIL_IF(version != 0x50, PHYSFS_ERR_UNSUPPORTED, NULL);
|
||||||
(memcmp(header.signature, VDF_SIGNATURE_G2, VDF_HEADER_SIGNATURE_LENGTH) != 0))
|
|
||||||
|
if ((memcmp(sig, VDF_SIGNATURE_G1, VDF_SIGNATURE_LENGTH) != 0) &&
|
||||||
|
(memcmp(sig, VDF_SIGNATURE_G2, VDF_SIGNATURE_LENGTH) != 0))
|
||||||
{
|
{
|
||||||
BAIL(PHYSFS_ERR_UNSUPPORTED, NULL);
|
BAIL(PHYSFS_ERR_UNSUPPORTED, NULL);
|
||||||
} /* if */
|
} /* if */
|
||||||
|
|
||||||
record = vdfLoadRecord(io, header);
|
BAIL_IF_ERRPASS(!io->seek(io, rootCatOffset), NULL);
|
||||||
BAIL_IF_ERRPASS(!record, NULL);
|
|
||||||
record->io = io;
|
|
||||||
return record;
|
|
||||||
} /* VDF_openArchive */
|
|
||||||
|
|
||||||
static void VDF_closeArchive(void *opaque)
|
unpkarc = UNPK_openArchive(io);
|
||||||
{
|
BAIL_IF_ERRPASS(!unpkarc, NULL);
|
||||||
VdfRecord *record = ((VdfRecord *)opaque);
|
|
||||||
int i;
|
if (!vdfLoadEntries(io, count, vdfDosTimeToEpoch(timestamp), unpkarc))
|
||||||
for (i = 0; i < VDF_HASHTABLE_SIZE; i++)
|
|
||||||
{
|
{
|
||||||
VdfLinkedList *list = record->table[i];
|
UNPK_abandonArchive(unpkarc);
|
||||||
while (list)
|
return NULL;
|
||||||
{
|
|
||||||
VdfLinkedList *next = list->next;
|
|
||||||
allocator.Free(list);
|
|
||||||
list = next;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
allocator.Free(record->entries);
|
|
||||||
allocator.Free(record);
|
|
||||||
} /* VDF_closeArchive */
|
|
||||||
|
|
||||||
static PHYSFS_Io *VDF_openRead(void *opaque, const char *name)
|
|
||||||
{
|
|
||||||
PHYSFS_Io *retval = NULL;
|
|
||||||
VdfRecord *record = (VdfRecord *)opaque;
|
|
||||||
VdfFileinfo *finfo = NULL;
|
|
||||||
VdfEntryInfo entry;
|
|
||||||
GOTO_IF(!vdfFindFile(record, name, &entry), PHYSFS_ERR_NOT_FOUND, VDF_openRead_failed);
|
|
||||||
|
|
||||||
retval = (PHYSFS_Io *)allocator.Malloc(sizeof(PHYSFS_Io));
|
|
||||||
GOTO_IF(!retval, PHYSFS_ERR_OUT_OF_MEMORY, VDF_openRead_failed);
|
|
||||||
|
|
||||||
finfo = (VdfFileinfo *)allocator.Malloc(sizeof(VdfFileinfo));
|
|
||||||
GOTO_IF(!finfo, PHYSFS_ERR_OUT_OF_MEMORY, VDF_openRead_failed);
|
|
||||||
|
|
||||||
finfo->io = record->io->duplicate(record->io);
|
|
||||||
GOTO_IF_ERRPASS(!finfo->io, VDF_openRead_failed);
|
|
||||||
|
|
||||||
if (!finfo->io->seek(finfo->io, entry.jump))
|
|
||||||
goto VDF_openRead_failed;
|
|
||||||
|
|
||||||
finfo->curPos = 0;
|
|
||||||
|
|
||||||
finfo->entry = (VdfEntryInfo *)allocator.Malloc(sizeof(VdfEntryInfo));
|
|
||||||
GOTO_IF(!finfo->entry, PHYSFS_ERR_OUT_OF_MEMORY, VDF_openRead_failed);
|
|
||||||
memcpy(finfo->entry, &entry, sizeof(VdfEntryInfo));
|
|
||||||
|
|
||||||
memcpy(retval, &VDF_Io, sizeof(*retval));
|
|
||||||
retval->opaque = finfo;
|
|
||||||
return retval;
|
|
||||||
|
|
||||||
VDF_openRead_failed:
|
|
||||||
if (finfo != NULL)
|
|
||||||
{
|
|
||||||
if (finfo->io != NULL)
|
|
||||||
finfo->io->destroy(finfo->io);
|
|
||||||
allocator.Free(finfo);
|
|
||||||
} /* if */
|
} /* if */
|
||||||
|
|
||||||
if (retval != NULL)
|
return unpkarc;
|
||||||
allocator.Free(retval);
|
} /* VDF_openArchive */
|
||||||
|
|
||||||
return NULL;
|
|
||||||
} /* VDF_openRead */
|
|
||||||
|
|
||||||
const PHYSFS_Archiver __PHYSFS_Archiver_VDF =
|
const PHYSFS_Archiver __PHYSFS_Archiver_VDF =
|
||||||
{
|
{
|
||||||
|
|
@ -516,14 +144,14 @@ const PHYSFS_Archiver __PHYSFS_Archiver_VDF =
|
||||||
0, /* supportsSymlinks */
|
0, /* supportsSymlinks */
|
||||||
},
|
},
|
||||||
VDF_openArchive,
|
VDF_openArchive,
|
||||||
VDF_enumerateFiles,
|
UNPK_enumerateFiles,
|
||||||
VDF_openRead,
|
UNPK_openRead,
|
||||||
UNPK_openWrite,
|
UNPK_openWrite,
|
||||||
UNPK_openAppend,
|
UNPK_openAppend,
|
||||||
UNPK_remove,
|
UNPK_remove,
|
||||||
UNPK_mkdir,
|
UNPK_mkdir,
|
||||||
VDF_stat,
|
UNPK_stat,
|
||||||
VDF_closeArchive
|
UNPK_closeArchive
|
||||||
};
|
};
|
||||||
|
|
||||||
#endif /* defined PHYSFS_SUPPORTS_VDF */
|
#endif /* defined PHYSFS_SUPPORTS_VDF */
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue