source: Sophya/trunk/SophyaLib/UnixMac/src/opendir.c@ 2845

/* $Id: opendir.c,v 1.1 1999-12-10 17:11:26 ansari Exp $ */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "dirent.h"

DIR *opendir(char const * path)
{
        CInfoPBRec cipbr;
        HFileInfo *fpb = (HFileInfo*)&cipbr;
        DirInfo *dpb = (DirInfo*)&cipbr;
        DIR *dp;
        char name[FILENAME_MAX];
        short err;
        FSSpec tempspec;
        
        strncpy(name, path, sizeof(name)-1);
        c2pstr(name);
        
        err = FSMakeFSSpec(0,0,(unsigned char*)name,&tempspec);
        
        fpb->ioNamePtr= (unsigned char*)name;
        fpb->ioVRefNum= 0;
        fpb->ioFDirIndex= 0;
        fpb->ioFVersNum= 0;
        dpb->ioDrDirID= 0;
        err= PBGetCatInfo(&cipbr, FALSE);
        if (err != noErr) {
                errno = ENOENT;
                return NULL;
        }
        dp = (DIR*)calloc(1, sizeof(DIR));
        if (dp != NULL) {
                dp->volrefnum = tempspec.vRefNum;
                dp->dirid = fpb->ioDirID;
                dp->nextfile = 1;
        }
        return dp;
}

/*
 * Close a directory.
 */

int closedir(DIR *dp)
{
        free(dp);
        return 0;
}

/*
 * Read the next directory entry.
 */

struct dirent *readdir(DIR *dp)
{
        CInfoPBRec cipbr;
        HFileInfo *fpb = (HFileInfo*)&cipbr;
        DirInfo *dpb = (DirInfo*)&cipbr;
        short err;
        static struct dirent dir;

        fpb->ioDirID= dp->dirid;
        fpb->ioNamePtr= (unsigned char*)dir.d_name;
        fpb->ioVRefNum= dp->volrefnum;
        fpb->ioFDirIndex= dp->nextfile++;
        fpb->ioFVersNum= 0;
        err= PBGetCatInfo(&cipbr, FALSE);
        if (err != noErr) {
                errno = EIO;
                return NULL;
        }
        p2cstr((StringPtr)dir.d_name);
        dir.d_namlen = strlen(dir.d_name);
        dir.d_reclen = sizeof(dir);
        dir.d_ino = 0;
        return &dir;
}

void rewinddir(DIR *dp)
{
                dp->nextfile = 1;
}

/*
long telldir(DIR *dp)
{
   return dp->nextfile;
}

void seekdir(DIR *dp, long location)
{
  dp->nextfile = location;
}
*/