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#include <malloc.h>
#include <string.h>
#include <errno.h>
#include "readdir.h"
/**********************************************************************
* Implement dirent-style opendir/readdir/closedir on Window 95/NT
*
* Functions defined are opendir(), readdir() and closedir() with the
* same prototypes as the normal dirent.h implementation.
*
* Does not implement telldir(), seekdir(), rewinddir() or scandir().
* The dirent struct is compatible with Unix, except that d_ino is
* always 1 and d_off is made up as we go along.
*
* The DIR typedef is not compatible with Unix.
**********************************************************************/
API_EXPORT(DIR *) opendir(const char *dir)
{
DIR *dp;
char *filespec;
long handle;
int index;
filespec = malloc(strlen(dir) + 2 + 1);
strcpy(filespec, dir);
index = strlen(filespec) - 1;
if (index >= 0 && (filespec[index] == '/' || filespec[index] == '\\'))
filespec[index] = '\0';
strcat(filespec, "/*");
dp = (DIR *)malloc(sizeof(DIR));
dp->offset = 0;
dp->finished = 0;
dp->dir = strdup(dir);
if ((handle = _findfirst(filespec, &(dp->fileinfo))) < 0) {
if (errno == ENOENT)
dp->finished = 1;
else
return NULL;
}
dp->handle = handle;
free(filespec);
return dp;
}
API_EXPORT(struct dirent *) readdir(DIR *dp)
{
if (!dp || dp->finished) return NULL;
if (dp->offset != 0) {
if (_findnext(dp->handle, &(dp->fileinfo)) < 0) {
dp->finished = 1;
return NULL;
}
}
dp->offset++;
strncpy(dp->dent.d_name, dp->fileinfo.name, _MAX_FNAME);
dp->dent.d_ino = 1;
dp->dent.d_reclen = strlen(dp->dent.d_name);
dp->dent.d_off = dp->offset;
return &(dp->dent);
}
API_EXPORT(int) closedir(DIR *dp)
{
if (!dp) return 0;
_findclose(dp->handle);
if (dp->dir) free(dp->dir);
if (dp) free(dp);
return 0;
}
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