pascal OSErr ResolveFileIDRef(ConstStr255Param volName,
short vRefNum,
long fileID,
long *parID,
StringPtr fileName)
{
HParamBlockRec pb;
OSErr error;
Str255 tempStr;
tempStr[0] = 0;
if ( volName != NULL )
{
BlockMoveData(volName, tempStr, volName[0] + 1);
}
pb.fidParam.ioNamePtr = (StringPtr)tempStr;
pb.fidParam.ioVRefNum = vRefNum;
pb.fidParam.ioFileID = fileID;
error = PBResolveFileIDRefSync(&pb);
if ( error == noErr )
{
*parID = pb.fidParam.ioSrcDirID;
if ( fileName != NULL )
{
BlockMoveData(tempStr, fileName, tempStr[0] + 1);
}
}
return ( error );
}
int
main(int argc, char **argv)
{
FIDParam pb;
OSStatus result;
long tmpSrcDirID;
int len = (MAXPATHLEN - 1);
char path[MAXPATHLEN] = { '\0' };
char *cursor = (char *)(path + (MAXPATHLEN - 1));
char *upath;
HFSStr255 *p, pbuf;
if (argc != 2) {
fprintf(stderr, "usage: %s <CNID>\n", argv[0]);
exit(1);
}
tmpSrcDirID = atoi(argv[1]);
pb.ioVRefNum = 0; /* no volume reference number -- use default
* parent directory ID -- we do NOT know it yet */
pb.ioSrcDirID = -1;
while (1) {
pb.ioNamePtr = (StringPtr)&pbuf; /* a pointer to a pathname */
pb.ioFileID = tmpSrcDirID; /* the given CNID */
/* PBResolveFileIDRefSync() is deprecated as of 10.5, the Apple
* Developer docs say to use FSGetCatalogInfo() instead (I am trying
* that in the 64-bit version): */
if ((result = PBResolveFileIDRefSync((HParmBlkPtr)&pb)) < 0) {
fprintf(stderr, "cnid2path32: PBResolveFileIDRefSync() returned error '%i'\n",
(int)result);
/* a negative return code is an error, so return that: */
return result;
}
if ((pb.ioSrcDirID == tmpSrcDirID) || (len <= 0)) {
cursor++;
break;
}
p = (HFSStr255 *)&pbuf;
cursor -= (p->length);
memcpy(cursor, p->characters, p->length);
*--cursor = '/';
len -= (1 + p->length);
tmpSrcDirID = pb.ioSrcDirID;
}
if ((upath = strchr(cursor, '/')) != NULL) {
*upath = '\0';
upath++;
} else {
upath = "";
}
printf("%s:/%s\n", cursor, upath);
return 0;
}
