71 lines
3.9 KiB
C
71 lines
3.9 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/bits/safemacros.h"
|
|
#include "libc/calls/internal.h"
|
|
#include "libc/calls/struct/stat.h"
|
|
#include "libc/fmt/conv.h"
|
|
#include "libc/nt/enum/fileflagandattributes.h"
|
|
#include "libc/nt/enum/fileinfobyhandleclass.h"
|
|
#include "libc/nt/enum/filetype.h"
|
|
#include "libc/nt/files.h"
|
|
#include "libc/nt/runtime.h"
|
|
#include "libc/nt/struct/byhandlefileinformation.h"
|
|
#include "libc/nt/struct/filecompressioninfo.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/s.h"
|
|
|
|
textwindows int fstat$nt(int64_t handle, struct stat *st) {
|
|
int filetype;
|
|
uint64_t actualsize;
|
|
struct NtFileCompressionInfo fci;
|
|
struct NtByHandleFileInformation wst;
|
|
if (GetFileInformationByHandle(handle, &wst)) {
|
|
memset(st, 0, sizeof(*st));
|
|
filetype = GetFileType(handle);
|
|
st->st_mode =
|
|
(S_IRUSR | S_IXUSR |
|
|
(!(wst.dwFileAttributes & kNtFileAttributeReadonly) ? S_IWUSR : 0) |
|
|
((wst.dwFileAttributes & kNtFileAttributeNormal) ? S_IFREG : 0) |
|
|
((wst.dwFileAttributes & kNtFileFlagOpenReparsePoint) ? S_IFLNK : 0) |
|
|
((wst.dwFileAttributes & kNtFileAttributeDirectory)
|
|
? S_IFDIR
|
|
: (((filetype == kNtFileTypeDisk) ? S_IFBLK : 0) |
|
|
((filetype == kNtFileTypeChar) ? S_IFCHR : 0) |
|
|
((filetype == kNtFileTypePipe) ? S_IFIFO : 0))));
|
|
st->st_atim = FileTimeToTimeSpec(wst.ftLastAccessFileTime);
|
|
st->st_mtim = FileTimeToTimeSpec(wst.ftLastWriteFileTime);
|
|
st->st_ctim = FileTimeToTimeSpec(wst.ftCreationFileTime);
|
|
st->st_size = (uint64_t)wst.nFileSizeHigh << 32 | wst.nFileSizeLow;
|
|
st->st_blksize = PAGESIZE;
|
|
st->st_dev = wst.dwVolumeSerialNumber;
|
|
st->st_ino = (uint64_t)wst.nFileIndexHigh << 32 | wst.nFileIndexLow;
|
|
st->st_nlink = wst.nNumberOfLinks;
|
|
if (GetFileInformationByHandleEx(handle, kNtFileCompressionInfo, &fci,
|
|
sizeof(fci))) {
|
|
actualsize = fci.CompressedFileSize;
|
|
} else {
|
|
actualsize = st->st_size;
|
|
}
|
|
st->st_blocks = roundup(actualsize, PAGESIZE) / 512;
|
|
return 0;
|
|
} else {
|
|
return __winerr();
|
|
}
|
|
}
|