newlib-cygwin/winsup/mingw/samples/dirent/wtest.c

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/*
* A test which demonstrates the use of _wopendir and related
* wide char functions declared in dirent.h.
*
* TODO: Make this _UNICODE neutral using tchar.h mappings.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <dirent.h>
int
main (int argc, char* argv[])
{
int i;
struct _wdirent* de;
_WDIR* dir;
long lPos;
if (argc == 2)
{
size_t len = strlen(argv[1]) + 1;
wchar_t* wpath = (wchar_t*) malloc(len *sizeof(wchar_t));
mbstowcs(wpath, argv[1], len);
wprintf (L"Opening directory \"%s\"\n", wpath);
dir = _wopendir(wpath);
free (wpath);
}
else
{
wprintf (L"Opening \".\"\n");
dir = _wopendir(L".");
}
if (!dir)
{
wprintf (L"Directory open failed!\n");
if (errno)
{
wprintf (L"Error : %S\n", strerror(errno));
}
return 1;
}
i = 0;
lPos = -1;
while ((de = _wreaddir (dir)))
{
i++;
wprintf (L"%d : \"%s\" (tell %ld)\n", i, de->d_name,
_wtelldir(dir));
if (i == 3)
{
wprintf (L"We will seek here later.\n");
lPos = _wtelldir (dir);
}
}
printf ("Rewind directory.\n");
_wrewinddir (dir);
if ((de = _wreaddir (dir)))
{
wprintf (L"First entry : \"%s\"\n", de->d_name);
}
else
{
wprintf (L"Empty directory.\n");
}
if (lPos != -1)
{
wprintf (L"Seeking to fourth entry.\n");
_wseekdir (dir, lPos);
if ((de = _wreaddir (dir)))
{
wprintf (L"Fourth entry : \"%s\"\n", de->d_name);
}
else
{
wprintf (L"No fourth entry.\n");
}
}
else
{
wprintf (L"Seek position is past end of directory.\n");
}
wprintf (L"Closing directory.\n");
_wclosedir (dir);
return 0;
}