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/* GET FULL PATHNAME OF A FILE.
** Original by Guido, modified by Jack to handle FSSpecs
** (and only tested under MetroWerks, so far)
*/
#include <string.h>
#include <Files.h>
#include "nfullpath.h"
/* Mac file system parameters */
#define MAXPATH 256 /* Max path name length+1 */
#define SEP ':' /* Separator in path names */
#define ROOTID 2 /* DirID of a volume's root directory */
/* Macro to find out whether we can do HFS-only calls: */
#define FSFCBLen (* (short *) 0x3f6)
#define hfsrunning() (FSFCBLen > 0)
int
nfullpath(fsp, retbuf)
FSSpec *fsp;
char *retbuf;
{
union {
HFileInfo f;
DirInfo d;
WDPBRec w;
VolumeParam v;
} pb;
static char cwd[2*MAXPATH];
unsigned char namebuf[MAXPATH];
short err;
int dir;
long dirid;
char *next= cwd + sizeof cwd - 1;
int len;
if (!hfsrunning())
return -1;
dir = fsp->vRefNum;
dirid = fsp->parID;
/* Stuff the filename into the buffer */
len = fsp->name[0];
*next = '\0';
next -= len+1;
memcpy(next, &fsp->name[1], len);
for (;;) {
pb.d.ioNamePtr= namebuf;
pb.d.ioVRefNum= dir;
pb.d.ioFDirIndex= -1;
pb.d.ioDrDirID= dirid;
err= PBGetCatInfo((CInfoPBPtr)&pb.d, 0);
if (err != noErr) {
return err;
}
*--next= SEP;
len= namebuf[0];
if ( len + strlen(next) >= MAXPATH )
return -1;
next -= len;
memcpy(next, (char *)namebuf+1, len);
if (pb.d.ioDrDirID == ROOTID)
break;
dirid= pb.d.ioDrParID;
}
strcpy(retbuf, next);
return 0;
}
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