mingw-w64-crt/testcases/t_fstat.c

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <windows.h>

#define TMPTMPL "mingw-w64-fstat-XXXXXX"
static char dirpath[MAX_PATH + sizeof(TMPTMPL)];

static void remove_dirpath(void) { rmdir(dirpath); }

int main()
{
    struct stat st;
    struct stat64 st64;
    HANDLE handle;
    int dirfd;

    assert(fstat(0, &st) == 0);
    printf("fstat(0): mode = %08o\n", st.st_mode);
    assert(!S_ISDIR(st.st_mode));

    assert(fstat64(0, &st64) == 0);
    printf("fstat64(0): mode = %08o\n", st64.st_mode);
    assert(!S_ISDIR(st64.st_mode));

    assert(GetTempPathA(MAX_PATH, dirpath));
    printf("GetTempPathA(): path=%s\n", dirpath);

    strcat(dirpath, TMPTMPL);
    assert(mkdtemp(dirpath));
    atexit(remove_dirpath);
    printf("mkdtemp(): path=%s\n", dirpath);

    handle = CreateFileA(dirpath, FILE_READ_ATTRIBUTES | DELETE, FILE_SHARE_VALID_FLAGS, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_DELETE_ON_CLOSE, NULL);
    assert(handle != INVALID_HANDLE_VALUE);

    dirfd = _open_osfhandle((intptr_t)handle, O_RDONLY);
    assert(dirfd >= 0);

    assert(fstat(dirfd, &st) == 0);
    printf("fstat(dirfd): mode = %08o\n", st.st_mode);
    assert(S_ISDIR(st.st_mode));

    assert(fstat64(dirfd, &st64) == 0);
    printf("fstat64(dirfd): mode = %08o\n", st64.st_mode);
    assert(S_ISDIR(st64.st_mode));

    return 0;
}