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bios_extract: Port one more Phoenix-related check from phoedeco

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This commit is contained in:
RichardG867
2022-04-14 17:41:05 -03:00
parent 1f0f10be93
commit 95bd3d3d64
1 changed files with 12 additions and 2 deletions
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14
bios_extract/src/phoenix.c
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@@ -345,6 +345,16 @@ static int PhoenixModule(unsigned char *BIOSImage, int BIOSLength, int Offset)
return 0;
}
/* phoedeco: "for Fujitsu-Siemens Computer D1219" */
if ((Module->Compression >= 0) && (Module->Compression <= 5) &&
(Module->Signature[1] == 0x31) && (Module->Signature[2] == 0x31)) {
struct PhoenixModuleHeader NewHeader;
memcpy(&NewHeader, Module, sizeof(struct PhoenixModuleHeader));
NewHeader.ExpLen = Module->ExpLen & 0x00ffffff;
NewHeader.FragLength = Module->FragLength & 0x00ffffff;
Module = &NewHeader;
}
valid_signature:
if ((Offset + Module->HeadLen + 4 + le32toh(Module->FragLength)) >
BIOSLength) {
@@ -1075,9 +1085,9 @@ PhoenixExtract(unsigned char *BIOSImage, int BIOSLength, int BIOSOffset,
BCD6F1 = (struct PhoenixBCD6F1 *)p;
sprintf(filename, "segment_%04X.rom", BCD6F1->Segment);
printf("0x%05lX (%6d bytes) -> %s\t(%d bytes)\n",
printf("0x%05lX (%6d bytes) -> %s\t(%d bytes) (%s)\n",
p - BIOSImage, le32toh(BCD6F1->FragLength), filename,
le32toh(BCD6F1->ExpLen));
le32toh(BCD6F1->ExpLen), (phx.compression == 0) ? "BCD6F1" : "LZARI");
Buffer = MMapOutputFile(filename, le32toh(BCD6F1->ExpLen));
if (!Buffer)
break;