msdirent.c 2.93 KiB
/* msdirent.c */
/* POSIX directory operations using Microsoft _findfirst/next functions. */
/* $Id$ */
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* Copyright 2000 Rob Swindell - http://www.synchro.net/copyright.html *
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#include "msdirent.h"
#include <errno.h> /* ENOMEM & ENOENT definitions */
#include <stdio.h> /* sprintf prototype */
DIR* opendir(const char* dirname)
{
DIR* dir;
if((dir=(DIR*)calloc(1,sizeof(DIR)))==NULL) {
errno=ENOMEM;
return(NULL);
}
sprintf(dir->filespec,"%.*s",sizeof(dir->filespec)-5,dirname);
if(*dir->filespec && dir->filespec[strlen(dir->filespec)-1]!='\\')
strcat(dir->filespec,"\\");
strcat(dir->filespec,"*.*");
dir->handle=_findfirst(dir->filespec,&dir->finddata);
if(dir->handle==-1) {
errno=ENOENT;
free(dir);
return(NULL);
}
return(dir);
}
struct dirent* readdir(DIR* dir)
{
if(dir==NULL)
return(NULL);
if(dir->end==TRUE)
return(NULL);
if(dir->handle==-1)
return(NULL);
sprintf(dir->dirent.d_name,"%.*s",sizeof(struct dirent)-1,dir->finddata.name); if(_findnext(dir->handle,&dir->finddata)!=0)
dir->end=TRUE;
return(&dir->dirent);
}
int closedir (DIR* dir)
{
if(dir==NULL)
return(-1);
_findclose(dir->handle);
free(dir);
return(0);
}
void rewinddir(DIR* dir)
{
if(dir==NULL)
return;
_findclose(dir->handle);
dir->end=FALSE;
dir->handle=_findfirst(dir->filespec,&dir->finddata);
}