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-Fixes in new resource file code: Added file length checks and set lump count to 1 for single lump files.

Browse source 
SVN r1558 (trunk)
This commit is contained in:
Christoph Oelckers 2009-04-24 22:31:35 +00:00
parent 1ea8777572
commit 2e90519c13
7 changed files with 61 additions and 42 deletions
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17
src/resourcefiles/file_7z.cpp
View file

@ -334,14 +334,17 @@ FResourceFile *Check7Z(const char *filename, FileReader *file)
{
char head[k7zSignatureSize];
file->Seek(0, SEEK_SET);
file->Read(&head, k7zSignatureSize);
file->Seek(0, SEEK_SET);
if (!memcmp(head, k7zSignature, k7zSignatureSize))
if (file->GetLength() >= k7zSignatureSize)
{
FResourceFile *rf = new F7ZFile(filename, file);
if (rf->Open()) return rf;
delete rf;
file->Seek(0, SEEK_SET);
file->Read(&head, k7zSignatureSize);
file->Seek(0, SEEK_SET);
if (!memcmp(head, k7zSignature, k7zSignatureSize))
{
FResourceFile *rf = new F7ZFile(filename, file);
if (rf->Open()) return rf;
delete rf;
}
}
return NULL;
}

17
src/resourcefiles/file_grp.cpp
View file

@ -138,14 +138,17 @@ FResourceFile *CheckGRP(const char *filename, FileReader *file)
{
char head[12];
file->Seek(0, SEEK_SET);
file->Read(&head, 12);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "KenSilverman", 12))
if (file->GetLength() >= 12)
{
FResourceFile *rf = new FGrpFile(filename, file);
if (rf->Open()) return rf;
delete rf;
file->Seek(0, SEEK_SET);
file->Read(&head, 12);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "KenSilverman", 12))
{
FResourceFile *rf = new FGrpFile(filename, file);
if (rf->Open()) return rf;
delete rf;
}
}
return NULL;
}

1
src/resourcefiles/file_lump.cpp
View file

@ -80,6 +80,7 @@ bool FLumpFile::Open()
Lumps->Namespace = ns_global;
Lumps->Flags = 0;
Lumps->FullName = NULL;
NumLumps = 1;
return true;
}

17
src/resourcefiles/file_pak.cpp
View file

@ -130,14 +130,17 @@ FResourceFile *CheckPak(const char *filename, FileReader *file)
{
char head[4];
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "PACK", 4))
if (file->GetLength() >= 12)
{
FResourceFile *rf = new FPakFile(filename, file);
if (rf->Open()) return rf;
delete rf;
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "PACK", 4))
{
FResourceFile *rf = new FPakFile(filename, file);
if (rf->Open()) return rf;
delete rf;
}
}
return NULL;
}

17
src/resourcefiles/file_rff.cpp
View file

@ -235,14 +235,17 @@ FResourceFile *CheckRFF(const char *filename, FileReader *file)
{
char head[4];
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "RFF\x1a", 4))
if (file->GetLength() >= 16)
{
FResourceFile *rf = new FRFFFile(filename, file);
if (rf->Open()) return rf;
delete rf;
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "RFF\x1a", 4))
{
FResourceFile *rf = new FRFFFile(filename, file);
if (rf->Open()) return rf;
delete rf;
}
}
return NULL;
}

17
src/resourcefiles/file_wad.cpp
View file

@ -328,14 +328,17 @@ FResourceFile *CheckWad(const char *filename, FileReader *file)
{
char head[4];
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "IWAD", 4) || !memcmp(head, "PWAD", 4))
if (file->GetLength() >= 12)
{
FResourceFile *rf = new FWadFile(filename, file);
if (rf->Open()) return rf;
delete rf;
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "IWAD", 4) || !memcmp(head, "PWAD", 4))
{
FResourceFile *rf = new FWadFile(filename, file);
if (rf->Open()) return rf;
delete rf;
}
}
return NULL;
}

17
src/resourcefiles/file_zip.cpp
View file

@ -391,14 +391,17 @@ FResourceFile *CheckZip(const char *filename, FileReader *file)
{
char head[4];
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "PK\x3\x4", 4))
if (file->GetLength() >= sizeof(FZipLocalFileHeader))
{
FResourceFile *rf = new FZipFile(filename, file);
if (rf->Open()) return rf;
delete rf;
file->Seek(0, SEEK_SET);
file->Read(&head, 4);
file->Seek(0, SEEK_SET);
if (!memcmp(head, "PK\x3\x4", 4))
{
FResourceFile *rf = new FZipFile(filename, file);
if (rf->Open()) return rf;
delete rf;
}
}
return NULL;
}