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(svn r5831) - Fix (r5765): regression regarding windows filetimes. st->st_mtime's type time_t is only 64bit on windows64, so we need to convert it.

This commit is contained in:
Darkvater 2006-08-10 09:10:41 +00:00
parent 08ae2cf6e5
commit 4ccdb04cd3
1 changed files with 8 additions and 1 deletions
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9
win32.c
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@ -719,11 +719,18 @@ void FiosGetDrives(void)
bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb)
{
// hectonanoseconds between Windows and POSIX epoch
static const int64 posix_epoch_hns = 0x019DB1DED53E8000;
const WIN32_FIND_DATA *fd = &ent->dir->fd;
if (fd->dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) return false;
sb->st_size = ((uint64) fd->nFileSizeHigh << 32) + fd->nFileSizeLow;
sb->st_mtime = *(uint64*)&fd->ftLastWriteTime;
/* UTC FILETIME to seconds-since-1970 UTC
* we just have to subtract POSIX epoch and scale down to units of seconds.
* http://www.gamedev.net/community/forums/topic.asp?topic_id=294070&whichpage=1&#1860504
* XXX - not entirely correct, since filetimes on FAT aren't UTC but local,
* this won't entirely be correct, but we use the time only for comparsion. */
sb->st_mtime = (time_t)((*(uint64*)&fd->ftLastWriteTime - posix_epoch_hns) / 1E7);
sb->st_mode = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)? S_IFDIR : S_IFREG;
return true;