boolean setfilecomment (FSSpec *pfs, bigstring bscomment) {
DTPBRec dt;
clearbytes (&dt, longsizeof (dt));
if (!hasdesktopmanager ((*pfs).vRefNum))
return (false);
dt.ioVRefNum = (*pfs).vRefNum;
if (PBDTGetPath (&dt) != noErr)
return (false);
dt.ioNamePtr = (*pfs).name;
dt.ioDirID = (*pfs).parID;
dt.ioDTBuffer = (Ptr) bscomment + 1;
dt.ioDTReqCount = stringlength (bscomment);
if (PBDTSetCommentSync (&dt) != noErr)
return (false);
PBDTFlushSync (&dt);
return (true);
} /*setfilecomment*/
boolean getfilecomment (FSSpec *pfs, bigstring bscomment) {
DTPBRec dt;
clearbytes (&dt, longsizeof (dt));
setemptystring (bscomment); /*default return*/
if (!hasdesktopmanager ((*pfs).vRefNum))
return (false);
dt.ioVRefNum = (*pfs).vRefNum;
if (PBDTGetPath (&dt) != noErr)
return (false);
dt.ioNamePtr = (*pfs).name;
dt.ioDirID = (*pfs).parID;
dt.ioDTBuffer = (Ptr) bscomment + 1;
dt.ioDTReqCount = lenbigstring;
if (PBDTGetCommentSync (&dt) != noErr)
return (false);
setstringlength (bscomment, dt.ioDTActCount);
return (true);
} /*getfilecomment*/
///////////////////////////////////////////////////////////////////
// We set the MacOS 9 Finder comment using the File Manager API's
// Desktop Database functions.
///////////////////////////////////////////////////////////////////
static OSErr OS9_SetComment (FSSpec *fileSpec, char *comment, bool *unsupported)
{
#if !__LP64__
OSErr err = noErr;
DTPBRec dt;
dt.ioVRefNum = (*fileSpec).vRefNum;
err = PBDTGetPath(&dt);
if (err != noErr) {
*unsupported = true;
return err;
}
//fill in the relevant fields (using parameters)
dt.ioNamePtr = (*fileSpec).name;
dt.ioDirID = (*fileSpec).parID;
dt.ioDTBuffer = comment;
dt.ioDTReqCount = strlen(comment);
if (PBDTSetCommentSync (&dt) != noErr)
return (err);
err = PBDTSetCommentSync(&dt);
if (err != noErr)
return err;
err = PBDTFlushSync (&dt);
#endif
return (noErr);
}
boolean findapplication (short vnum, OSType creator, boolean flappsonly, FSSpec *pfs) {
/*
dmb 9/21/93: keep looping until an APPL is found, or PBDTGetAPPLSync
returns an error. (it will eventually return afpItemNotFound.)
dmb 9/24/93: added flappsonly parameter. a non-app, such as an extension
or desk accessory, can own a document type.
*/
DTPBRec dt;
bigstring appname;
tyfileinfo info;
if (!hasdesktopmanager (vnum))
return (false);
clearbytes (&dt, longsizeof (dt));
dt.ioVRefNum = vnum;
if (PBDTGetPath (&dt) != noErr)
return (false);
dt.ioNamePtr = (StringPtr) &appname;
dt.ioFileCreator = creator;
for (dt.ioIndex = 0; ; ++dt.ioIndex) {
if (PBDTGetAPPLSync (&dt) != noErr)
return (false);
if (!filemakespec (vnum, dt.ioAPPLParID, appname, pfs))
continue;
if (!fileexists (pfs))
continue;
if (!filegetinfo (pfs, &info))
continue;
if (!flappsonly) /*dmb 9/24/93: some callers don't require apps*/
return (true);
if (info.filetype == 'APPL') /*DW 9/16/93: desktop db can contain references to non-apps*/
return (true);
}
} /*findapplication*/
boolean findapponanydisk (OSType appid, FSSpec *fs) {
/*
find the app whose creator id is appid. return true if we found it,
false otherwise.
*/
DTPBRec dt;
ParamBlockRec pb;
Str255 appfname;
clearbytes (&pb, (long) sizeof (pb));
while (true) {
++pb.volumeParam.ioVolIndex;
if (PBGetVInfoSync (&pb) != noErr)
return (false);
if (!hasdesktopmanager (pb.volumeParam.ioVRefNum))
continue;
dt.ioNamePtr = NULL;
dt.ioVRefNum = pb.volumeParam.ioVRefNum;
if (PBDTGetPath (&dt) != noErr)
return (false);
dt.ioNamePtr = (StringPtr) &appfname;
dt.ioIndex = 0;
dt.ioFileCreator = appid;
if (PBDTGetAPPLSync (&dt) == noErr) {
if (FSMakeFSSpec (pb.volumeParam.ioVRefNum, dt.ioAPPLParID, appfname, fs) == noErr)
return (true);
}
} /*while*/
return (false);
} /*findapponanydisk*/
pascal OSErr DTOpen(ConstStr255Param volName,
short vRefNum,
short *dtRefNum,
Boolean *newDTDatabase)
{
OSErr error;
GetVolParmsInfoBuffer volParmsInfo;
long infoSize;
DTPBRec pb;
/* Check for volume Desktop Manager support before calling */
infoSize = sizeof(GetVolParmsInfoBuffer);
error = HGetVolParms(volName, vRefNum, &volParmsInfo, &infoSize);
if ( error == noErr )
{
if ( hasDesktopMgr(&volParmsInfo) )
{
pb.ioNamePtr = (StringPtr)volName;
pb.ioVRefNum = vRefNum;
error = PBDTOpenInform(&pb);
/* PBDTOpenInform informs us if the desktop was just created */
/* by leaving the low bit of ioTagInfo clear (0) */
*newDTDatabase = ((pb.ioTagInfo & 1L) == 0);
if ( error == paramErr )
{
error = PBDTGetPath(&pb);
/* PBDTGetPath doesn't tell us if the database is new */
/* so assume it is not new */
*newDTDatabase = false;
}
*dtRefNum = pb.ioDTRefNum;
}
else
{
error = paramErr;
}
}
return ( error );
}
static void PrintFileComment (char *path)
{
#if !__LP64__
OSErr err = noErr;
FSRef fileRef;
FSSpec fileSpec;
DTPBRec dt;
char buf[255] = "\0";
char comment[255] = "\0";
//see if the file in question exists and we can write it
if (access(path, R_OK|F_OK) == -1)
{
perror(path);
return;
}
//get file reference from path
err = FSPathMakeRef(path, &fileRef, NULL);
if (err != noErr)
{
fprintf(stderr, "FSPathMakeRef: Error %d for file %s\n", err, path);
return;
}
//retrieve filespec from file ref
err = FSGetCatalogInfo (&fileRef, NULL, NULL, NULL, &fileSpec, NULL);
if (err != noErr)
{
fprintf(stderr, "FSGetCatalogInfo(): Error %d getting file spec for %s\n", err, path);
return;
}
///////////// oK, now we can go about getting the comment /////////////
dt.ioVRefNum = fileSpec.vRefNum;
err = PBDTGetPath(&dt);
if (err != noErr)
{
fprintf(stderr, "Can't get OS 9 comments for %s\n", path);
return;
}
//fill in the relevant fields (using parameters)
dt.ioNamePtr = fileSpec.name;
dt.ioDirID = fileSpec.parID;
dt.ioDTBuffer = (char *)&buf;
PBDTGetCommentSync(&dt);
if (dt.ioDTActCount != 0) //if zero, that means no comment
{
strncpy((char *)&comment, (char *)&buf, dt.ioDTActCount);
if (!printFileName)
printf("%s\n", (char *)&comment);
else
printf("Comment for '%s':\n%s\n", path, (char *)&comment);
}
return;
#endif
}
