// FILE.CPP
//
// File support
-// by James L. Hammons
+// by James Hammons
// (C) 2010 Underground Software
//
-// JLH = James L. Hammons <jlhamm@acm.org>
+// JLH = James Hammons <jlhamm@acm.org>
//
// Who When What
-// --- ---------- -------------------------------------------------------------
+// --- ---------- ------------------------------------------------------------
// JLH 01/16/2010 Created this log ;-)
-// JLH 02/28/2010 Added functions to look inside .ZIP files and handle contents
+// JLH 02/28/2010 Added functions to look inside .ZIP files and handle
+// contents
+// JLH 06/01/2012 Added function to check ZIP file CRCs against file DB
//
#include "file.h"
#include <stdarg.h>
#include <string.h>
#include "crc32.h"
+#include "filedb.h"
#include "eeprom.h"
#include "jaguar.h"
#include "log.h"
#include "memory.h"
+#include "universalhdr.h"
#include "unzip.h"
#include "zlib.h"
static int gzfilelength(gzFile gd);
static bool CheckExtension(const char * filename, const char * ext);
+//static int ParseFileType(uint8_t header1, uint8_t header2, uint32_t size);
+
+// Private variables/enums
+
//
// Generic ROM loading
//
-uint32 JaguarLoadROM(uint8 * rom, char * path)
+uint32_t JaguarLoadROM(uint8_t * &rom, char * path)
{
// We really should have some kind of sanity checking for the ROM size here to prevent
// a buffer overflow... !!! FIX !!!
#warning "!!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!"
- uint32 romSize = 0;
+ uint32_t romSize = 0;
-WriteLog("JaguarLoadROM: Attempting to load file '%s'...", path);
+ WriteLog("JaguarLoadROM: Attempting to load file '%s'...", path);
char * ext = strrchr(path, '.');
-if (ext == NULL)
- WriteLog("FAILED!\n");
-else
- WriteLog("Succeeded in finding extension (%s)!\n", ext);
- if (ext != NULL)
+ // No filename extension == YUO FAIL IT (it is loading the file).
+ // This is naive, but it works. But should probably come up with something a little
+ // more robust, to prevent problems with dopes trying to exploit this.
+ if (ext == NULL)
{
- WriteLog("VJ: Loading \"%s\"...", path);
-
- if (strcasecmp(ext, ".zip") == 0)
- {
- // Handle ZIP file loading here...
- WriteLog("(ZIPped)...");
+ WriteLog("FAILED!\n");
+ return 0;
+ }
- if (load_zipped_file(0, 0, path, NULL, &rom, &romSize) == -1)
- {
- WriteLog("Failed!\n");
- return 0;
- }
- }
- else
- {
-/* FILE * fp = fopen(path, "rb");
+ WriteLog("Succeeded in finding extension (%s)!\n", ext);
+ WriteLog("VJ: Loading \"%s\"...", path);
- if (fp == NULL)
- {
- WriteLog("Failed!\n");
- return 0;
- }
+ if (strcasecmp(ext, ".zip") == 0)
+ {
+ // Handle ZIP file loading here...
+ WriteLog("(ZIPped)...");
- fseek(fp, 0, SEEK_END);
- romSize = ftell(fp);
- fseek(fp, 0, SEEK_SET);
- fread(rom, 1, romSize, fp);
- fclose(fp);*/
+// uint8_t * buffer = NULL;
+// romSize = GetFileFromZIP(path, FT_SOFTWARE, buffer);
+ romSize = GetFileFromZIP(path, FT_SOFTWARE, rom);
- // Handle gzipped files transparently [Adam Green]...
+ if (romSize == 0)
+ {
+ WriteLog("Failed!\n");
+ return 0;
+ }
- gzFile fp = gzopen(path, "rb");
+// memcpy(rom, buffer, romSize);
+// delete[] buffer;
+ }
+ else
+ {
+ // Handle gzipped files transparently [Adam Green]...
- if (fp == NULL)
- {
- WriteLog("Failed!\n");
- return 0;
- }
+ gzFile fp = gzopen(path, "rb");
- romSize = gzfilelength(fp);
- gzseek(fp, 0, SEEK_SET);
- gzread(fp, rom, romSize);
- gzclose(fp);
+ if (fp == NULL)
+ {
+ WriteLog("Failed!\n");
+ return 0;
}
- WriteLog("OK (%i bytes)\n", romSize);
+ romSize = gzfilelength(fp);
+ rom = new uint8_t[romSize];
+ gzseek(fp, 0, SEEK_SET);
+ gzread(fp, rom, romSize);
+ gzclose(fp);
}
+ WriteLog("OK (%i bytes)\n", romSize);
+
return romSize;
}
+
//
// Jaguar file loading
+// We do a more intelligent file analysis here instead of relying on (possible
+// false) file extensions which people don't seem to give two shits about
+// anyway. :-(
//
bool JaguarLoadFile(char * path)
{
-// jaguarRomSize = JaguarLoadROM(mem, path);
- jaguarROMSize = JaguarLoadROM(jaguarMainROM, path);
-
-/*//This is not *nix friendly for some reason...
-// if (!UserSelectFile(path, newPath))
- if (!UserSelectFile((strlen(path) == 0 ? (char *)"." : path), newPath))
- {
- WriteLog("VJ: Could not find valid ROM in directory \"%s\"...\nAborting!\n", path);
- log_done();
- exit(0);
- }*/
+ uint8_t * buffer = NULL;
+ jaguarROMSize = JaguarLoadROM(buffer, path);
if (jaguarROMSize == 0)
{
-// WriteLog("VJ: Could not load ROM from file \"%s\"...\nAborting!\n", newPath);
- WriteLog("GUI: Could not load ROM from file \"%s\"...\nAborting load!\n", path);
-// Need to do something else here, like throw up an error dialog instead of aborting. !!! FIX !!!
-// log_done();
-// exit(0);
- return false; // This is a start...
+ // It's up to the GUI to report errors, not us. :-)
+ WriteLog("FILE: Could not load ROM from file \"%s\"...\nAborting load!\n", path);
+ return false;
}
- jaguarMainROMCRC32 = crc32_calcCheckSum(jaguarMainROM, jaguarROMSize);
+ jaguarMainROMCRC32 = crc32_calcCheckSum(buffer, jaguarROMSize);
WriteLog("CRC: %08X\n", (unsigned int)jaguarMainROMCRC32);
+// TODO: Check for EEPROM file in ZIP file. If there is no EEPROM in the user's EEPROM
+// directory, copy the one from the ZIP file, if it exists.
EepromInit();
+ jaguarRunAddress = 0x802000; // For non-BIOS runs, this is true
+ int fileType = ParseFileType(buffer, jaguarROMSize);
+ jaguarCartInserted = false;
- jaguarRunAddress = 0x802000;
-
- char * ext = strrchr(path, '.'); // Get the file's extension for non-cartridge checking
-
-//NOTE: Should fix JaguarLoadROM() to replace .zip with what's *in* the zip (.abs, .j64, etc.)
- if (strcasecmp(ext, ".rom") == 0)
+ if (fileType == JST_ROM)
+ {
+ jaguarCartInserted = true;
+ memcpy(jagMemSpace + 0x800000, buffer, jaguarROMSize);
+// Checking something...
+jaguarRunAddress = GET32(jagMemSpace, 0x800404);
+WriteLog("FILE: Cartridge run address is reported as $%X...\n", jaguarRunAddress);
+ delete[] buffer;
+ return true;
+ }
+ else if (fileType == JST_ALPINE)
{
// File extension ".ROM": Alpine image that loads/runs at $802000
- WriteLog("GUI: Setting up homebrew (ROM)... Run address: 00802000, length: %08X\n", jaguarROMSize);
-
- for(int i=jaguarROMSize-1; i>=0; i--)
- jaguarMainROM[0x2000 + i] = jaguarMainROM[i];
-
- memset(jaguarMainROM, 0xFF, 0x2000);
-/* memcpy(jaguar_mainRam, jaguar_mainRom, jaguarRomSize);
- memset(jaguar_mainRom, 0xFF, 0x600000);
- memcpy(jaguar_mainRom + 0x2000, jaguar_mainRam, jaguarRomSize);
- memset(jaguar_mainRam, 0x00, 0x400000);*/
-
-/*
-Stubulator ROM vectors...
-handler 001 at $00E00008
-handler 002 at $00E008DE
-handler 003 at $00E008E2
-handler 004 at $00E008E6
-handler 005 at $00E008EA
-handler 006 at $00E008EE
-handler 007 at $00E008F2
-handler 008 at $00E0054A
-handler 009 at $00E008FA
-handler 010 at $00000000
-handler 011 at $00000000
-handler 012 at $00E008FE
-handler 013 at $00E00902
-handler 014 at $00E00906
-handler 015 at $00E0090A
-handler 016 at $00E0090E
-handler 017 at $00E00912
-handler 018 at $00E00916
-handler 019 at $00E0091A
-handler 020 at $00E0091E
-handler 021 at $00E00922
-handler 022 at $00E00926
-handler 023 at $00E0092A
-handler 024 at $00E0092E
-handler 025 at $00E0107A
-handler 026 at $00E0107A
-handler 027 at $00E0107A
-handler 028 at $00E008DA
-handler 029 at $00E0107A
-handler 030 at $00E0107A
-handler 031 at $00E0107A
-handler 032 at $00000000
-
-Let's try setting up the illegal instruction vector for a stubulated jaguar...
-*/
-/* SET32(jaguar_mainRam, 0x08, 0x00E008DE);
- SET32(jaguar_mainRam, 0x0C, 0x00E008E2);
- SET32(jaguar_mainRam, 0x10, 0x00E008E6); // <-- Should be here (it is)...
- SET32(jaguar_mainRam, 0x14, 0x00E008EA);//*/
+ WriteLog("FILE: Setting up Alpine ROM... Run address: 00802000, length: %08X\n", jaguarROMSize);
+ memset(jagMemSpace + 0x800000, 0xFF, 0x2000);
+ memcpy(jagMemSpace + 0x802000, buffer, jaguarROMSize);
+ delete[] buffer;
+// Maybe instead of this, we could try requiring the STUBULATOR ROM? Just a thought...
// Try setting the vector to say, $1000 and putting an instruction there that loops forever:
// This kludge works! Yeah!
SET32(jaguarMainRAM, 0x10, 0x00001000);
SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here
+ return true;
}
- else if (strcasecmp(ext, ".abs") == 0)
+ else if (fileType == JST_ABS_TYPE1)
{
- // File extension ".ABS": Atari linker output file with header (w/o is useless to us here)
-
-/*
-ABS Format sleuthing (LBUGDEMO.ABS):
+ // For ABS type 1, run address == load address
+ uint32_t loadAddress = GET32(buffer, 0x16),
+ codeSize = GET32(buffer, 0x02) + GET32(buffer, 0x06);
+ WriteLog("FILE: Setting up homebrew (ABS-1)... Run address: %08X, length: %08X\n", loadAddress, codeSize);
+ memcpy(jagMemSpace + loadAddress, buffer + 0x24, codeSize);
+ delete[] buffer;
+ jaguarRunAddress = loadAddress;
+ return true;
+ }
+ else if (fileType == JST_ABS_TYPE2)
+ {
+ uint32_t loadAddress = GET32(buffer, 0x28), runAddress = GET32(buffer, 0x24),
+ codeSize = GET32(buffer, 0x18) + GET32(buffer, 0x1C);
+ WriteLog("FILE: Setting up homebrew (ABS-2)... Run address: %08X, length: %08X\n", runAddress, codeSize);
+ memcpy(jagMemSpace + loadAddress, buffer + 0xA8, codeSize);
+ delete[] buffer;
+ jaguarRunAddress = runAddress;
+ return true;
+ }
+ // NB: This is *wrong*
+ /*
+ Basically, if there is no "JAG" at position $1C, then the long there is the load/start
+ address in LITTLE ENDIAN.
+ If "JAG" is present, the the next character ("R" or "L") determines the size of the
+ JagServer command (2 bytes vs. 4). Following that are the commands themselves;
+ typically it will either be 2 (load) or 3 (load & run). Command headers go like so:
+ 2:
+ Load address (long)
+ Length (long)
+ payload
+ 3:
+ Load address (long)
+ Length (long)
+ Run address (long)
+ payload
+ 5: (Reset)
+ [command only]
+ 7: (Run at address)
+ Run address (long)
+ [no payload]
+ 9: (Clear memory)
+ Start address (long)
+ End address (long)
+ [no payload]
+ 10: (Poll for commands)
+ [command only]
+ 12: (Load & run user program)
+ filname, terminated with NULL
+ [no payload]
+ $FFFF: (Halt)
+ [no payload]
+ */
+ else if (fileType == JST_JAGSERVER)
+ {
+ // This kind of shiaut should be in the detection code below...
+ // (and now it is! :-)
+// if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')
+// {
+ // Still need to do some checking here for type 2 vs. type 3. This assumes 3
+ // Also, JAGR vs. JAGL (word command size vs. long command size)
+ uint32_t loadAddress = GET32(buffer, 0x22), runAddress = GET32(buffer, 0x2A);
+ WriteLog("FILE: Setting up homebrew (Jag Server)... Run address: $%X, length: $%X\n", runAddress, jaguarROMSize - 0x2E);
+ memcpy(jagMemSpace + loadAddress, buffer + 0x2E, jaguarROMSize - 0x2E);
+ delete[] buffer;
+ jaguarRunAddress = runAddress;
-000000 60 1B 00 00 05 0C 00 04 62 C0 00 00 04 28 00 00
-000010 12 A6 00 00 00 00 00 80 20 00 FF FF 00 80 25 0C
-000020 00 00 40 00
+// Hmm. Is this kludge necessary?
+SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)
+SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here
+
+ return true;
+// }
+// else // Special WTFOMGBBQ type here...
+// {
+// uint32_t loadAddress = (buffer[0x1F] << 24) | (buffer[0x1E] << 16) | (buffer[0x1D] << 8) | buffer[0x1C];
+// WriteLog("FILE: Setting up homebrew (GEMDOS WTFOMGBBQ type)... Run address: $%X, length: $%X\n", loadAddress, jaguarROMSize - 0x20);
+// memcpy(jagMemSpace + loadAddress, buffer + 0x20, jaguarROMSize - 0x20);
+// delete[] buffer;
+// jaguarRunAddress = loadAddress;
+// return true;
+// }
+ }
+ else if (fileType == JST_WTFOMGBBQ)
+ {
+ uint32_t loadAddress = (buffer[0x1F] << 24) | (buffer[0x1E] << 16) | (buffer[0x1D] << 8) | buffer[0x1C];
+ WriteLog("FILE: Setting up homebrew (GEMDOS WTFOMGBBQ type)... Run address: $%X, length: $%X\n", loadAddress, jaguarROMSize - 0x20);
+ memcpy(jagMemSpace + loadAddress, buffer + 0x20, jaguarROMSize - 0x20);
+ delete[] buffer;
+ jaguarRunAddress = loadAddress;
+ return true;
+ }
-DRI-format file detected...
-Text segment size = 0x0000050c bytes
-Data segment size = 0x000462c0 bytes
-BSS Segment size = 0x00000428 bytes
-Symbol Table size = 0x000012a6 bytes
-Absolute Address for text segment = 0x00802000
-Absolute Address for data segment = 0x0080250c
-Absolute Address for BSS segment = 0x00004000
+ // We can assume we have JST_NONE at this point. :-P
+ WriteLog("FILE: Failed to load headerless file.\n");
+ return false;
+}
-(CRZDEMO.ABS):
-000000 01 50 00 03 00 00 00 00 00 03 83 10 00 00 05 3b
-000010 00 1c 00 03 00 00 01 07 00 00 1d d0 00 03 64 98
-000020 00 06 8b 80 00 80 20 00 00 80 20 00 00 80 3d d0
-000030 2e 74 78 74 00 00 00 00 00 80 20 00 00 80 20 00 .txt (+36 bytes)
-000040 00 00 1d d0 00 00 00 a8 00 00 00 00 00 00 00 00
-000050 00 00 00 00 00 00 00 20
-000058 2e 64 74 61 00 00 00 00 00 80 3d d0 00 80 3d d0 .dta (+36 bytes)
-000068 00 03 64 98 00 00 1e 78 00 00 00 00 00 00 00 00
-000078 00 00 00 00 00 00 00 40
-000080 2e 62 73 73 00 00 00 00 00 00 50 00 00 00 50 00 .bss (+36 bytes)
-000090 00 06 8b 80 00 03 83 10 00 00 00 00 00 00 00 00
-0000a0 00 00 00 00 00 00 00 80
+//
+// "Alpine" file loading
+// Since the developers were coming after us with torches and pitchforks, we
+// decided to allow this kind of thing. ;-) But ONLY FOR THE DEVS, DAMMIT! >:-U
+// O_O
+//
+bool AlpineLoadFile(char * path)
+{
+ uint8_t * buffer = NULL;
+ jaguarROMSize = JaguarLoadROM(buffer, path);
-Header size is $A8 bytes...
+ if (jaguarROMSize == 0)
+ {
+ // It's up to the GUI to deal with failure, not us. ;-)
+ WriteLog("FILE: Could not load Alpine from file \"%s\"...\nAborting load!\n", path);
+ return false;
+ }
-BSD/COFF format file detected...
-3 sections specified
-Symbol Table offset = 230160 ($00038310)
-Symbol Table contains 1339 symbol entries ($0000053B)
-The additional header size is 28 bytes ($001C)
-Magic Number for RUN_HDR = 0x00000107
-Text Segment Size = 7632 ($00001DD0)
-Data Segment Size = 222360 ($00036498)
-BSS Segment Size = 428928 ($00068B80)
-Starting Address for executable = 0x00802000
-Start of Text Segment = 0x00802000
-Start of Data Segment = 0x00803dd0
-*/
- if (jaguarMainROM[0] == 0x60 && jaguarMainROM[1] == 0x1B)
- {
- uint32 loadAddress = GET32(jaguarMainROM, 0x16), //runAddress = GET32(jaguar_mainRom, 0x2A),
- codeSize = GET32(jaguarMainROM, 0x02) + GET32(jaguarMainROM, 0x06);
- WriteLog("GUI: Setting up homebrew (ABS-1)... Run address: %08X, length: %08X\n", loadAddress, codeSize);
+ jaguarMainROMCRC32 = crc32_calcCheckSum(buffer, jaguarROMSize);
+ WriteLog("CRC: %08X\n", (unsigned int)jaguarMainROMCRC32);
+ EepromInit();
- if (loadAddress < 0x800000)
- memcpy(jaguarMainRAM + loadAddress, jaguarMainROM + 0x24, codeSize);
- else
- {
- for(int i=codeSize-1; i>=0; i--)
- jaguarMainROM[(loadAddress - 0x800000) + i] = jaguarMainROM[i + 0x24];
-/* memcpy(jaguar_mainRam, jaguar_mainRom + 0x24, codeSize);
- memset(jaguar_mainRom, 0xFF, 0x600000);
- memcpy(jaguar_mainRom + (loadAddress - 0x800000), jaguar_mainRam, codeSize);
- memset(jaguar_mainRam, 0x00, 0x400000);*/
- }
+ jaguarRunAddress = 0x802000;
- jaguarRunAddress = loadAddress;
- }
- else if (jaguarMainROM[0] == 0x01 && jaguarMainROM[1] == 0x50)
- {
- uint32 loadAddress = GET32(jaguarMainROM, 0x28), runAddress = GET32(jaguarMainROM, 0x24),
- codeSize = GET32(jaguarMainROM, 0x18) + GET32(jaguarMainROM, 0x1C);
- WriteLog("GUI: Setting up homebrew (ABS-2)... Run address: %08X, length: %08X\n", runAddress, codeSize);
+ WriteLog("FILE: Setting up Alpine ROM with non-standard length... Run address: 00802000, length: %08X\n", jaguarROMSize);
- if (loadAddress < 0x800000)
- memcpy(jaguarMainRAM + loadAddress, jaguarMainROM + 0xA8, codeSize);
- else
- {
- for(int i=codeSize-1; i>=0; i--)
- jaguarMainROM[(loadAddress - 0x800000) + i] = jaguarMainROM[i + 0xA8];
-/* memcpy(jaguar_mainRam, jaguar_mainRom + 0xA8, codeSize);
- memset(jaguar_mainRom, 0xFF, 0x600000);
- memcpy(jaguar_mainRom + (loadAddress - 0x800000), jaguar_mainRam, codeSize);
- memset(jaguar_mainRam, 0x00, 0x400000);*/
- }
+ memset(jagMemSpace + 0x800000, 0xFF, 0x2000);
+ memcpy(jagMemSpace + 0x802000, buffer, jaguarROMSize);
+ delete[] buffer;
- jaguarRunAddress = runAddress;
- }
- else
- {
- WriteLog("GUI: Couldn't find correct ABS/COF format: %02X %02X\n", jaguarMainROM[0], jaguarMainROM[1]);
- return false;
- }
- }
- else if (strcasecmp(ext, ".jag") == 0)
- {
- // File extension ".JAG": Atari server file with header
-//NOTE: The bytes 'JAGR' should also be at position $1C...
-// Also, there's *always* a $601A header at position $00...
- if (jaguarMainROM[0] == 0x60 && jaguarMainROM[1] == 0x1A)
- {
- uint32 loadAddress = GET32(jaguarMainROM, 0x22), runAddress = GET32(jaguarMainROM, 0x2A);
-//This is not always right! Especially when converted via bin2jag1!!!
-//We should have access to the length of the furshlumiger file that was loaded anyway!
-//Now, we do! ;-)
-// uint32 progLength = GET32(jaguar_mainRom, 0x02);
-//jaguarRomSize
-//jaguarRunAddress
-// WriteLog("Jaguar: Setting up PD ROM... Run address: %08X, length: %08X\n", runAddress, progLength);
-// memcpy(jaguar_mainRam + loadAddress, jaguar_mainRom + 0x2E, progLength);
- WriteLog("GUI: Setting up homebrew (JAG)... Run address: %08X, length: %08X\n", runAddress, jaguarROMSize - 0x2E);
- memcpy(jaguarMainRAM + loadAddress, jaguarMainROM + 0x2E, jaguarROMSize - 0x2E);
-// SET32(jaguar_mainRam, 4, runAddress);
- jaguarRunAddress = runAddress;
- }
- else
- return false;
- }
- // .J64 (Jaguar cartridge ROM image) is implied by the FileList object...
+// Maybe instead of this, we could try requiring the STUBULATOR ROM? Just a thought...
+ // Try setting the vector to say, $1000 and putting an instruction there
+ // that loops forever:
+ // This kludge works! Yeah!
+ SET32(jaguarMainRAM, 0x10, 0x00001000); // Set Exception #4 (Illegal Instruction)
+ SET16(jaguarMainRAM, 0x1000, 0x60FE); // Here: bra Here
return true;
}
+
//
// Get the length of a (possibly) gzipped file
//
return length;
}
+
//
// Compare extension to passed in filename. If equal, return true; otherwise false.
//
-static bool CheckExtension(const char * filename, const char * ext)
+static bool CheckExtension(const uint8_t * filename, const char * ext)
{
- const char * filenameExt = strrchr(filename, '.'); // Get the file's extension (if any)
+ // Sanity checking...
+ if ((filename == NULL) || (ext == NULL))
+ return false;
+
+ const char * filenameExt = strrchr((const char *)filename, '.'); // Get the file's extension (if any)
+
+ if (filenameExt == NULL)
+ return false;
+
return (strcasecmp(filenameExt, ext) == 0 ? true : false);
}
+
//
// Get file from .ZIP
// Returns the size of the file inside the .ZIP file that we're looking at
+// NOTE: If the thing we're looking for is found, it allocates it in the passed in buffer.
+// Which means we have to deallocate it later.
//
-uint32 GetFileFromZIP(const char * zipFile, FileType type, uint8 * &buffer)
+uint32_t GetFileFromZIP(const char * zipFile, FileType type, uint8_t * &buffer)
{
+// NOTE: We could easily check for this by discarding anything that's larger than the RAM/ROM
+// size of the Jaguar console.
#warning "!!! FIX !!! Should have sanity checking for ROM size to prevent buffer overflow!"
const char ftStrings[5][32] = { "Software", "EEPROM", "Label", "Box Art", "Controller Overlay" };
- ZIP * zip = openzip(0, 0, zipFile);
+// ZIP * zip = openzip(0, 0, zipFile);
+ FILE * zip = fopen(zipFile, "rb");
if (zip == NULL)
{
return 0;
}
- while (readzip(zip))
+// zipent * ze;
+ ZipFileEntry ze;
+ bool found = false;
+
+ // The order is here is important: If the file is found, we need to short-circuit the
+ // readzip() call because otherwise, 'ze' will be pointing to the wrong file!
+// while (!found && readzip(zip))
+ while (!found && GetZIPHeader(zip, ze))
{
- zipent * ze = &zip->ent;
- bool found = false;
+// ze = &zip->ent;
- if ((type == FT_LABEL) && (CheckExtension(ze->name, ".png") || CheckExtension(ze->name, ".jpg") || CheckExtension(ze->name, ".gif")))
+ // Here we simply rely on the file extension to tell the truth, but we know
+ // that extensions lie like sons-a-bitches. So this is naive, we need to do
+ // something a little more robust to keep bad things from happening here.
+#warning "!!! Checking for image by extension can be fooled !!!"
+ if ((type == FT_LABEL) && (CheckExtension(ze.filename, ".png") || CheckExtension(ze.filename, ".jpg") || CheckExtension(ze.filename, ".gif")))
{
found = true;
- WriteLog("FILE: Found image file '%s'.\n", ze->name);
+ WriteLog("FILE: Found image file '%s'.\n", ze.filename);
}
- if ((type == FT_SOFTWARE) && (CheckExtension(ze->name, ".j64") || CheckExtension(ze->name, ".rom") || CheckExtension(ze->name, ".abs") || CheckExtension(ze->name, ".cof")))
+ if ((type == FT_SOFTWARE) && (CheckExtension(ze.filename, ".j64")
+ || CheckExtension(ze.filename, ".rom") || CheckExtension(ze.filename, ".abs")
+ || CheckExtension(ze.filename, ".cof") || CheckExtension(ze.filename, ".coff")
+ || CheckExtension(ze.filename, ".jag")))
{
found = true;
- WriteLog("FILE: Found software file '%s'.\n", ze->name);
+ WriteLog("FILE: Found software file '%s'.\n", ze.filename);
}
- if ((type == FT_EEPROM) && (CheckExtension(ze->name, ".eep") || CheckExtension(ze->name, ".eeprom")))
+ if ((type == FT_EEPROM) && (CheckExtension(ze.filename, ".eep") || CheckExtension(ze.filename, ".eeprom")))
{
found = true;
- WriteLog("FILE: Found EEPROM file '%s'.\n", ze->name);
+ WriteLog("FILE: Found EEPROM file '%s'.\n", ze.filename);
}
- if (found)
+ if (!found)
+ fseek(zip, ze.compressedSize, SEEK_CUR);
+ }
+
+ uint32_t fileSize = 0;
+
+ if (found)
+ {
+ WriteLog("FILE: Uncompressing...");
+// Insert file size sanity check here...
+ buffer = new uint8_t[ze.uncompressedSize];
+
+// if (readuncompresszip(zip, ze.compressedSize, buffer) == 0)
+// if (UncompressFileFromZIP(zip, ze.compressedSize, buffer) == 0)
+ if (UncompressFileFromZIP(zip, ze, buffer) == 0)
+ {
+ fileSize = ze.uncompressedSize;
+ WriteLog("success! (%u bytes)\n", fileSize);
+ }
+ else
{
- WriteLog("FILE: Uncompressing...");
- buffer = new uint8[ze->uncompressed_size];
+ delete[] buffer;
+ buffer = NULL;
+ WriteLog("FAILED!\n");
+ }
+ }
+ else
+ // Didn't find what we're looking for...
+ WriteLog("FILE: Failed to find file of type %s...\n", ftStrings[type]);
- if (readuncompresszip(zip, ze, (char *)buffer) == 0)
- {
- WriteLog("success! (%u bytes)\n", ze->uncompressed_size);
- return ze->uncompressed_size;
- }
- else
+// closezip(zip);
+ fclose(zip);
+ return fileSize;
+}
+
+
+uint32_t GetFileDBIdentityFromZIP(const char * zipFile)
+{
+ FILE * zip = fopen(zipFile, "rb");
+
+ if (zip == NULL)
+ {
+ WriteLog("FILE: Could not open file '%s'!\n", zipFile);
+ return 0;
+ }
+
+ ZipFileEntry ze;
+
+ // Loop through all files in the zip file under consideration
+ while (GetZIPHeader(zip, ze))
+ {
+ // & loop through all known CRC32s in our file DB to see if it's there!
+ uint32_t index = 0;
+
+ while (romList[index].crc32 != 0xFFFFFF)
+ {
+ if (romList[index].crc32 == ze.crc32)
{
- WriteLog("FAILED!\n");
- delete[] buffer;
- return 0;
+ fclose(zip);
+ return index;
}
+
+ index++;
+ }
+
+ // We didn't find it, so skip the compressed data...
+ fseek(zip, ze.compressedSize, SEEK_CUR);
+ }
+
+ fclose(zip);
+ return -1;
+}
+
+
+bool FindFileInZIPWithCRC32(const char * zipFile, uint32_t crc)
+{
+ FILE * zip = fopen(zipFile, "rb");
+
+ if (zip == NULL)
+ {
+ WriteLog("FILE: Could not open file '%s'!\n", zipFile);
+ return 0;
+ }
+
+ ZipFileEntry ze;
+
+ // Loop through all files in the zip file under consideration
+ while (GetZIPHeader(zip, ze))
+ {
+ if (ze.crc32 == crc)
+ {
+ fclose(zip);
+ return true;
}
+
+ fseek(zip, ze.compressedSize, SEEK_CUR);
+ }
+
+ fclose(zip);
+ return false;
+}
+
+
+//
+// Parse the file type based upon file size and/or headers.
+//
+uint32_t ParseFileType(uint8_t * buffer, uint32_t size)
+{
+ // Check headers first...
+
+ // ABS/COFF type 1
+ if (buffer[0] == 0x60 && buffer[1] == 0x1B)
+ return JST_ABS_TYPE1;
+
+ // ABS/COFF type 2
+ if (buffer[0] == 0x01 && buffer[1] == 0x50)
+ return JST_ABS_TYPE2;
+
+ // Jag Server & other old shite
+ if (buffer[0] == 0x60 && buffer[1] == 0x1A)
+ {
+ if (buffer[0x1C] == 'J' && buffer[0x1D] == 'A' && buffer[0x1E] == 'G')
+ return JST_JAGSERVER;
+ else
+ return JST_WTFOMGBBQ;
}
- closezip(zip);
+ // And if that fails, try file sizes...
+
+ // If the file size is divisible by 1M, we probably have an regular ROM.
+ // We can also check our CRC32 against the internal ROM database to be sure.
+ // (We also check for the Memory Track cartridge size here as well...)
+ if ((size % 1048576) == 0 || size == 131072)
+ return JST_ROM;
+
+ // If the file size + 8192 bytes is divisible by 1M, we probably have an
+ // Alpine format ROM.
+ if (((size + 8192) % 1048576) == 0)
+ return JST_ALPINE;
+
+ // Headerless crap
+ return JST_NONE;
+}
+
+//
+// Check for universal header
+//
+bool HasUniversalHeader(uint8_t * rom, uint32_t romSize)
+{
+ // Sanity check
+ if (romSize < 8192)
+ return false;
+
+ for(int i=0; i<8192; i++)
+ if (rom[i] != universalCartHeader[i])
+ return false;
- WriteLog("FILE: Failed to find file of type %s...\n", ftStrings[type]);
- // Didn't find what we're looking for...
- return 0;
+ return true;
}
-//ParseFileType, etc.
+#if 0
+// Misc. doco
+
+/*
+Stubulator ROM vectors...
+handler 001 at $00E00008
+handler 002 at $00E008DE
+handler 003 at $00E008E2
+handler 004 at $00E008E6
+handler 005 at $00E008EA
+handler 006 at $00E008EE
+handler 007 at $00E008F2
+handler 008 at $00E0054A
+handler 009 at $00E008FA
+handler 010 at $00000000
+handler 011 at $00000000
+handler 012 at $00E008FE
+handler 013 at $00E00902
+handler 014 at $00E00906
+handler 015 at $00E0090A
+handler 016 at $00E0090E
+handler 017 at $00E00912
+handler 018 at $00E00916
+handler 019 at $00E0091A
+handler 020 at $00E0091E
+handler 021 at $00E00922
+handler 022 at $00E00926
+handler 023 at $00E0092A
+handler 024 at $00E0092E
+handler 025 at $00E0107A
+handler 026 at $00E0107A
+handler 027 at $00E0107A
+handler 028 at $00E008DA
+handler 029 at $00E0107A
+handler 030 at $00E0107A
+handler 031 at $00E0107A
+handler 032 at $00000000
+
+Let's try setting up the illegal instruction vector for a stubulated jaguar...
+
+ SET32(jaguar_mainRam, 0x08, 0x00E008DE);
+ SET32(jaguar_mainRam, 0x0C, 0x00E008E2);
+ SET32(jaguar_mainRam, 0x10, 0x00E008E6); // <-- Should be here (it is)...
+ SET32(jaguar_mainRam, 0x14, 0x00E008EA);//*/
+
+/*
+ABS Format sleuthing (LBUGDEMO.ABS):
+
+000000 60 1B 00 00 05 0C 00 04 62 C0 00 00 04 28 00 00
+000010 12 A6 00 00 00 00 00 80 20 00 FF FF 00 80 25 0C
+000020 00 00 40 00
+
+DRI-format file detected...
+Text segment size = 0x0000050c bytes
+Data segment size = 0x000462c0 bytes
+BSS Segment size = 0x00000428 bytes
+Symbol Table size = 0x000012a6 bytes
+Absolute Address for text segment = 0x00802000
+Absolute Address for data segment = 0x0080250c
+Absolute Address for BSS segment = 0x00004000
+
+(CRZDEMO.ABS):
+000000 01 50 00 03 00 00 00 00 00 03 83 10 00 00 05 3b
+000010 00 1c 00 03 00 00 01 07 00 00 1d d0 00 03 64 98
+000020 00 06 8b 80 00 80 20 00 00 80 20 00 00 80 3d d0
+
+000030 2e 74 78 74 00 00 00 00 00 80 20 00 00 80 20 00 .txt (+36 bytes)
+000040 00 00 1d d0 00 00 00 a8 00 00 00 00 00 00 00 00
+000050 00 00 00 00 00 00 00 20
+000058 2e 64 74 61 00 00 00 00 00 80 3d d0 00 80 3d d0 .dta (+36 bytes)
+000068 00 03 64 98 00 00 1e 78 00 00 00 00 00 00 00 00
+000078 00 00 00 00 00 00 00 40
+000080 2e 62 73 73 00 00 00 00 00 00 50 00 00 00 50 00 .bss (+36 bytes)
+000090 00 06 8b 80 00 03 83 10 00 00 00 00 00 00 00 00
+0000a0 00 00 00 00 00 00 00 80
+
+Header size is $A8 bytes...
+BSD/COFF format file detected...
+3 sections specified
+Symbol Table offset = 230160 ($00038310)
+Symbol Table contains 1339 symbol entries ($0000053B)
+The additional header size is 28 bytes ($001C)
+Magic Number for RUN_HDR = 0x00000107
+Text Segment Size = 7632 ($00001DD0)
+Data Segment Size = 222360 ($00036498)
+BSS Segment Size = 428928 ($00068B80)
+Starting Address for executable = 0x00802000
+Start of Text Segment = 0x00802000
+Start of Data Segment = 0x00803dd0
+*/
+#endif
projects / virtualjaguar / blobdiff