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refnum ioctl

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This commit is contained in:
Kelvin Sherlock 2013-02-16 16:10:55 -05:00
parent 85f19644f3
commit 04114124ac
1 changed files with 41 additions and 5 deletions
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46
mpw/mpw_ioctl.cpp
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@ -109,10 +109,10 @@ namespace MPW
}
memoryWriteWord(f.error, parm + 2);
return kEINVAL;
return d0;
}
uint32_t ftrap_iofname(uint32_t parm, uint32_t arg)
uint32_t ftrap_fname(uint32_t parm, uint32_t arg)
{
// return file name.
// AsmIIgs uses this...
@ -120,13 +120,47 @@ namespace MPW
return kEINVAL;
}
uint32_t ftrap_refnum(uint32_t parm, uint32_t arg)
{
// returns the refnum in *arg
uint32_t d0;
MPWFile f;
f.flags = memoryReadWord(parm);
f.error = memoryReadWord(parm + 2);
f.device = memoryReadLong(parm + 4);
f.cookie = memoryReadLong(parm + 8);
f.count = memoryReadLong(parm + 12);
f.buffer = memoryReadLong(parm + 16);
f.error = 0;
int fd = f.cookie;
if (fd < 0 || fd >= FDTable.size() || !FDTable[fd])
{
d0 = kEINVAL;
}
else
{
d0 = 0;
memoryWriteWord(fd, arg);
}
memoryWriteWord(f.error, parm + 2);
return d0;
}
uint32_t ftrap_lseek(uint32_t parm, uint32_t arg)
{
MPWFile f;
uint32_t d0;
uint32_t whence = memoryReadLong(arg);
int32_t offset =memoryReadLong(arg + 4);
int32_t offset =memoryReadLong(arg + 4); // signed value.
int nativeWhence = 0;
f.flags = memoryReadWord(parm);
@ -142,7 +176,6 @@ namespace MPW
// TODO - MacOS returns eofERR and sets mark to eof
// if seeking past the eof.
// TODO - MacOS treats offset as a signed value, unix is unsigned [?]
switch (whence)
{
case kSEEK_CUR:
@ -213,10 +246,13 @@ namespace MPW
break;
case kFIOFNAME:
d0 = ftrap_iofname(fd, arg);
d0 = ftrap_fname(fd, arg);
break;
case kFIOREFNUM:
d0 = ftrap_refnum(fd, arg);
break;
case kFIOSETEOF:
fprintf(stderr, "ioctl - unsupported op %04x\n", cmd);
exit(1);