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Add dummy support for openmode 4. Legend Of the Red Dragon 4.07 uses this.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3667
This commit is contained in:
Peter Veenstra 2011-01-16 20:49:43 +00:00
parent 1589c86ebe
commit eaf55b8dfd
2 changed files with 5 additions and 4 deletions
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2
include/dos_system.h
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@ -250,7 +250,7 @@ public:
virtual void Activate(void) {};
};
enum { OPEN_READ=0,OPEN_WRITE=1,OPEN_READWRITE=2, DOS_NOT_INHERIT=128};
enum { OPEN_READ=0, OPEN_WRITE=1, OPEN_READWRITE=2, OPEN_READ_NO_MOD=4, DOS_NOT_INHERIT=128};
enum { DOS_SEEK_SET=0,DOS_SEEK_CUR=1,DOS_SEEK_END=2};

7
src/dos/drive_local.cpp
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@ -83,9 +83,10 @@ bool localDrive::FileCreate(DOS_File * * file,char * name,Bit16u /*attributes*/)
bool localDrive::FileOpen(DOS_File * * file,char * name,Bit32u flags) {
const char* type;
switch (flags&0xf) {
case OPEN_READ:type="rb"; break;
case OPEN_WRITE:type="rb+"; break;
case OPEN_READWRITE:type="rb+"; break;
case OPEN_READ: type = "rb" ; break;
case OPEN_WRITE: type = "rb+"; break;
case OPEN_READWRITE: type = "rb+"; break;
case OPEN_READ_NO_MOD: type = "rb" ; break; //No modification of dates. LORD4.07 uses this
default:
DOS_SetError(DOSERR_ACCESS_CODE_INVALID);
return false;