diff options
Diffstat (limited to 'Source/3rdParty/physfs/physfs_archiver_vdf.c')
| -rw-r--r-- | Source/3rdParty/physfs/physfs_archiver_vdf.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/Source/3rdParty/physfs/physfs_archiver_vdf.c b/Source/3rdParty/physfs/physfs_archiver_vdf.c deleted file mode 100644 index 99bbb2a..0000000 --- a/Source/3rdParty/physfs/physfs_archiver_vdf.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * VDF support routines for PhysicsFS. - * - * This driver handles Gothic I/II VDF archives. - * This format (but not this driver) was designed by Piranha Bytes for - * use wih the ZenGin engine. - * - * This file was written by Francesco Bertolaccini, based on the UNPK archiver - * by Ryan C. Gordon and the works of degenerated1123 and Nico Bendlin. - */ - -#define __PHYSICSFS_INTERNAL__ -#include "physfs_internal.h" - -#if PHYSFS_SUPPORTS_VDF - -#include <time.h> - -#define VDF_COMMENT_LENGTH 256 -#define VDF_SIGNATURE_LENGTH 16 -#define VDF_ENTRY_NAME_LENGTH 64 -#define VDF_ENTRY_DIR 0x80000000 - -static const char* VDF_SIGNATURE_G1 = "PSVDSC_V2.00\r\n\r\n"; -static const char* VDF_SIGNATURE_G2 = "PSVDSC_V2.00\n\r\n\r"; - - -static inline int readui32(PHYSFS_Io *io, PHYSFS_uint32 *val) -{ - PHYSFS_uint32 v; - BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &v, sizeof (v)), 0); - *val = PHYSFS_swapULE32(v); - return 1; -} /* readui32 */ - - -static PHYSFS_sint64 vdfDosTimeToEpoch(const PHYSFS_uint32 dostime) -{ - /* VDF stores timestamps as 32bit DOS dates: the seconds are counted in - 2-seconds intervals and the years are counted since 1 Jan. 1980 */ - struct tm t; - memset(&t, '\0', sizeof (t)); - t.tm_year = ((int) ((dostime >> 25) & 0x7F)) + 80; /* 1980 to 1900 */ - t.tm_mon = ((int) ((dostime >> 21) & 0xF)) - 1; /* 1-12 to 0-11 */ - t.tm_mday = (int) ((dostime >> 16) & 0x1F); - t.tm_hour = (int) ((dostime >> 11) & 0x1F); - t.tm_min = (int) ((dostime >> 5) & 0x3F); - t.tm_sec = ((int) ((dostime >> 0) & 0x1F)) * 2; /* 2 seconds to 1. */ - return (PHYSFS_sint64) mktime(&t); -} /* vdfDosTimeToEpoch */ - - -static int vdfLoadEntries(PHYSFS_Io *io, const PHYSFS_uint32 count, - const PHYSFS_sint64 ts, void *arc) -{ - PHYSFS_uint32 i; - - for (i = 0; i < count; i++) - { - char name[VDF_ENTRY_NAME_LENGTH + 1]; - int namei; - PHYSFS_uint32 jump, size, type, attr; - - BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, name, sizeof (name) - 1), 0); - BAIL_IF_ERRPASS(!readui32(io, &jump), 0); - BAIL_IF_ERRPASS(!readui32(io, &size), 0); - BAIL_IF_ERRPASS(!readui32(io, &type), 0); - BAIL_IF_ERRPASS(!readui32(io, &attr), 0); - - /* Trim whitespace off the end of the filename */ - name[VDF_ENTRY_NAME_LENGTH] = '\0'; /* always null-terminated. */ - for (namei = VDF_ENTRY_NAME_LENGTH - 1; namei >= 0; namei--) - { - /* We assume the filenames are low-ASCII; consider the archive - corrupt if we see something above 127, since we don't know the - encoding. (We can change this later if we find out these exist - and are intended to be, say, latin-1 or UTF-8 encoding). */ - BAIL_IF(((PHYSFS_uint8) name[namei]) > 127, PHYSFS_ERR_CORRUPT, 0); - - if (name[namei] == ' ') - name[namei] = '\0'; - else - break; - } /* for */ - - BAIL_IF(!name[0], PHYSFS_ERR_CORRUPT, 0); - if (!(type & VDF_ENTRY_DIR)) { - BAIL_IF_ERRPASS(!UNPK_addEntry(arc, name, 0, ts, ts, jump, size), 0); - } - } /* for */ - - return 1; -} /* vdfLoadEntries */ - - -static void *VDF_openArchive(PHYSFS_Io *io, const char *name, - int forWriting, int *claimed) -{ - PHYSFS_uint8 ignore[16]; - PHYSFS_uint8 sig[VDF_SIGNATURE_LENGTH]; - PHYSFS_uint32 count, timestamp, version, dataSize, rootCatOffset; - void *unpkarc; - - assert(io != NULL); /* shouldn't ever happen. */ - - BAIL_IF(forWriting, PHYSFS_ERR_READ_ONLY, NULL); - - /* skip the 256-byte comment field. */ - BAIL_IF_ERRPASS(!io->seek(io, VDF_COMMENT_LENGTH), NULL); - - BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, sig, sizeof (sig)), NULL); - - if ((memcmp(sig, VDF_SIGNATURE_G1, VDF_SIGNATURE_LENGTH) != 0) && - (memcmp(sig, VDF_SIGNATURE_G2, VDF_SIGNATURE_LENGTH) != 0)) - { - BAIL(PHYSFS_ERR_UNSUPPORTED, NULL); - } /* if */ - - *claimed = 1; - - 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); - - BAIL_IF(version != 0x50, PHYSFS_ERR_UNSUPPORTED, NULL); - - BAIL_IF_ERRPASS(!io->seek(io, rootCatOffset), NULL); - - unpkarc = UNPK_openArchive(io); - BAIL_IF_ERRPASS(!unpkarc, NULL); - - if (!vdfLoadEntries(io, count, vdfDosTimeToEpoch(timestamp), unpkarc)) - { - UNPK_abandonArchive(unpkarc); - return NULL; - } /* if */ - - return unpkarc; -} /* VDF_openArchive */ - - -const PHYSFS_Archiver __PHYSFS_Archiver_VDF = -{ - CURRENT_PHYSFS_ARCHIVER_API_VERSION, - { - "VDF", - "Gothic I/II engine format", - "Francesco Bertolaccini <bertolaccinifrancesco@gmail.com>", - "https://github.com/frabert", - 0, /* supportsSymlinks */ - }, - VDF_openArchive, - UNPK_enumerate, - UNPK_openRead, - UNPK_openWrite, - UNPK_openAppend, - UNPK_remove, - UNPK_mkdir, - UNPK_stat, - UNPK_closeArchive -}; - -#endif /* defined PHYSFS_SUPPORTS_VDF */ - -/* end of physfs_archiver_vdf.c ... */ |