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#include <Carbon/Carbon.h>
#include "tkMacOSXUtil.h"
#define DIR_SEP_CHAR ':'
/*****************************************************************************/
pascal OSErr FSMakeFSSpecCompat(short vRefNum,
long dirID,
ConstStr255Param fileName,
FSSpec *spec)
{
OSErr result;
{
/* Let the file system create the FSSpec if it can since it does the job */
/* much more efficiently than I can. */
result = FSMakeFSSpec(vRefNum, dirID, fileName, spec);
/* Fix a bug in Macintosh PC Exchange's MakeFSSpec code where 0 is */
/* returned in the parID field when making an FSSpec to the volume's */
/* root directory by passing a full pathname in MakeFSSpec's */
/* fileName parameter. Fixed in Mac OS 8.1 */
if ( (result == noErr) && (spec->parID == 0) )
spec->parID = fsRtParID;
}
return ( result );
}
/*****************************************************************************/
pascal OSErr GetCatInfoNoName(short vRefNum,
long dirID,
ConstStr255Param name,
CInfoPBPtr pb)
{
Str31 tempName;
OSErr error;
/* Protection against File Sharing problem */
if ( (name == NULL) || (name[0] == 0) )
{
tempName[0] = 0;
pb->dirInfo.ioNamePtr = tempName;
pb->dirInfo.ioFDirIndex = -1; /* use ioDirID */
}
else
{
pb->dirInfo.ioNamePtr = (StringPtr)name;
pb->dirInfo.ioFDirIndex = 0; /* use ioNamePtr and ioDirID */
}
pb->dirInfo.ioVRefNum = vRefNum;
pb->dirInfo.ioDrDirID = dirID;
error = PBGetCatInfoSync(pb);
pb->dirInfo.ioNamePtr = NULL;
return ( error );
}
/*****************************************************************************/
pascal OSErr GetDirectoryID(short vRefNum,
long dirID,
ConstStr255Param name,
long *theDirID,
Boolean *isDirectory)
{
CInfoPBRec pb;
OSErr error;
error = GetCatInfoNoName(vRefNum, dirID, name, &pb);
if ( error == noErr )
{
*isDirectory = (pb.hFileInfo.ioFlAttrib & kioFlAttribDirMask) != 0;
if ( *isDirectory )
{
*theDirID = pb.dirInfo.ioDrDirID;
}
else
{
*theDirID = pb.hFileInfo.ioFlParID;
}
}
return ( error );
}
/*****************************************************************************/
pascal OSErr FSpGetDirectoryID(const FSSpec *spec,
long *theDirID,
Boolean *isDirectory)
{
return ( GetDirectoryID(spec->vRefNum, spec->parID, spec->name,
theDirID, isDirectory) );
}
/*
*----------------------------------------------------------------------
*
* FSpPathFromLocation --
*
* This function obtains a full path name for a given macintosh
* FSSpec. Unlike the More Files function FSpGetFullPath, this
* function will return a C string in the Handle. It also will
* create paths for FSSpec that do not yet exist.
*
* Results:
* OSErr code.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
OSErr
FSpPathFromLocation(
FSSpec *spec, /* The location we want a path for. */
int *length, /* Length of the resulting path. */
Handle *fullPath) /* Handle to path. */
{
OSErr err;
FSSpec tempSpec;
CInfoPBRec pb;
*fullPath = NULL;
/*
* Make a copy of the input FSSpec that can be modified.
*/
BlockMoveData(spec, &tempSpec, sizeof(FSSpec));
if (tempSpec.parID == fsRtParID) {
/*
* The object is a volume. Add a colon to make it a full
* pathname. Allocate a handle for it and we are done.
*/
tempSpec.name[0] += 2;
tempSpec.name[tempSpec.name[0] - 1] = DIR_SEP_CHAR;
tempSpec.name[tempSpec.name[0]] = '\0';
err = PtrToHand(&tempSpec.name[1], fullPath, tempSpec.name[0]);
} else {
/*
* The object isn't a volume. Is the object a file or a directory?
*/
pb.dirInfo.ioNamePtr = tempSpec.name;
pb.dirInfo.ioVRefNum = tempSpec.vRefNum;
pb.dirInfo.ioDrDirID = tempSpec.parID;
pb.dirInfo.ioFDirIndex = 0;
err = PBGetCatInfoSync(&pb);
if ((err == noErr) || (err == fnfErr)) {
/*
* If the file doesn't currently exist we start over. If the
* directory exists everything will work just fine. Otherwise we
* will just fail later. If the object is a directory, append a
* colon so full pathname ends with colon, but only if the name is
* not empty. NavServices returns FSSpec's with the parent ID set,
* but the name empty...
*/
if (err == fnfErr) {
BlockMoveData(spec, &tempSpec, sizeof(FSSpec));
} else if ( (pb.hFileInfo.ioFlAttrib & ioDirMask) != 0 ) {
if (tempSpec.name[0] > 0) {
tempSpec.name[0] += 1;
tempSpec.name[tempSpec.name[0]] = DIR_SEP_CHAR;
}
}
/*
* Create a new Handle for the object - make it a C string.
*/
tempSpec.name[0] += 1;
tempSpec.name[tempSpec.name[0]] = '\0';
err = PtrToHand(&tempSpec.name[1], fullPath, tempSpec.name[0]);
if (err == noErr) {
/*
* Get the ancestor directory names - loop until we have an
* error or find the root directory.
*/
pb.dirInfo.ioNamePtr = tempSpec.name;
pb.dirInfo.ioVRefNum = tempSpec.vRefNum;
pb.dirInfo.ioDrParID = tempSpec.parID;
do {
pb.dirInfo.ioFDirIndex = -1;
pb.dirInfo.ioDrDirID = pb.dirInfo.ioDrParID;
err = PBGetCatInfoSync(&pb);
if (err == noErr) {
/*
* Append colon to directory name and add
* directory name to beginning of fullPath.
*/
++tempSpec.name[0];
tempSpec.name[tempSpec.name[0]] = DIR_SEP_CHAR;
(void) Munger(*fullPath, 0, NULL, 0, &tempSpec.name[1],
tempSpec.name[0]);
fprintf(stderr,"mem\n");
err = MemError();
}
} while ( (err == noErr) &&
(pb.dirInfo.ioDrDirID != fsRtDirID) );
}
}
}
/*
* On error Dispose the handle, set it to NULL & return the err.
* Otherwise, set the length & return.
*/
if (err == noErr) {
*length = GetHandleSize(*fullPath) - 1;
} else {
if ( *fullPath != NULL ) {
DisposeHandle(*fullPath);
}
*fullPath = NULL;
*length = 0;
}
return err;
}
/*
*----------------------------------------------------------------------
*
* FSpLocationFromPath --
*
* This function obtains an FSSpec for a given macintosh path.
* Unlike the More Files function FSpLocationFromFullPath, this
* function will also accept partial paths and resolve any aliases
* along the path.
*
* Results:
* OSErr code.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
OSErr
FSpLocationFromPath(
int length, /* Length of path. */
const char *path, /* The path to convert. */
FSSpecPtr fileSpecPtr) /* On return the spec for the path. */
{
Str255 fileName;
OSErr err;
short vRefNum;
long dirID;
int pos, cur;
Boolean isDirectory;
Boolean wasAlias;
/*
* Check to see if this is a full path. If partial
* we assume that path starts with the current working
* directory. (Ie. volume & dir = 0)
*/
vRefNum = 0;
dirID = 0;
cur = 0;
if (length == 0) {
return fnfErr;
}
if (path[cur] == DIR_SEP_CHAR) {
cur++;
if (cur >= length) {
/*
* If path = ":", just return current directory.
*/
FSMakeFSSpecCompat(0, 0, NULL, fileSpecPtr);
return noErr;
}
} else {
while (path[cur] != DIR_SEP_CHAR && cur < length) {
cur++;
}
if (cur > 255) {
return bdNamErr;
}
if (cur < length) {
/*
* This is a full path
*/
cur++;
strncpy((char *) fileName + 1, path, cur);
fileName[0] = cur;
err = FSMakeFSSpecCompat(0, 0, fileName, fileSpecPtr);
if (err != noErr) return err;
FSpGetDirectoryID(fileSpecPtr, &dirID, &isDirectory);
vRefNum = fileSpecPtr->vRefNum;
} else {
cur = 0;
}
}
isDirectory = 1;
while (cur < length) {
if (!isDirectory) {
return dirNFErr;
}
pos = cur;
while (path[pos] != DIR_SEP_CHAR && pos < length) {
pos++;
}
if (pos == cur) {
/* Move up one dir */
/* cur++; */
fileName[1] = DIR_SEP_CHAR;
fileName[2] = DIR_SEP_CHAR;
fileName[0] = 2;
} else if (pos - cur > 255) {
return bdNamErr;
} else {
strncpy((char *) fileName + 1, &path[cur], pos - cur);
fileName[0] = pos - cur;
}
err = FSMakeFSSpecCompat(vRefNum, dirID, fileName, fileSpecPtr);
if (err != noErr) return err;
err = ResolveAliasFile(fileSpecPtr, true, &isDirectory, &wasAlias);
if (err != noErr) return err;
FSpGetDirectoryID(fileSpecPtr, &dirID, &isDirectory);
vRefNum = fileSpecPtr->vRefNum;
cur = pos;
if (path[cur] == DIR_SEP_CHAR) {
cur++;
}
}
return noErr;
}
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