diff options
Diffstat (limited to 'winsup/cygwin/fhandler_disk_file.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_disk_file.cc | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/winsup/cygwin/fhandler_disk_file.cc b/winsup/cygwin/fhandler_disk_file.cc index d510ff0f0..353c45ba5 100644 --- a/winsup/cygwin/fhandler_disk_file.cc +++ b/winsup/cygwin/fhandler_disk_file.cc @@ -493,13 +493,14 @@ fhandler_base::fstat_helper (struct __stat64 *buf, if (pc.exec_state () == dont_know_if_executable) { DWORD cur, done; + LONG curhigh = 0; char magic[3]; /* First retrieve current position, set to beginning of file if not already there. */ - cur = SetFilePointer (get_handle (), 0, NULL, FILE_CURRENT); - if (cur != INVALID_SET_FILE_POINTER - && (!cur || SetFilePointer (get_handle (), 0, NULL, FILE_BEGIN) + cur = SetFilePointer (get_handle (), 0, &curhigh, FILE_CURRENT); + if ((cur != INVALID_SET_FILE_POINTER || GetLastError () == NO_ERROR) + && ((!cur && !curhigh) || SetFilePointer (get_handle (), 0, NULL, FILE_BEGIN) != INVALID_SET_FILE_POINTER)) { /* FIXME should we use /etc/magic ? */ @@ -510,7 +511,7 @@ fhandler_base::fstat_helper (struct __stat64 *buf, pc.set_exec (); buf->st_mode |= STD_XBITS; } - SetFilePointer (get_handle (), cur, NULL, FILE_BEGIN); + SetFilePointer (get_handle (), cur, &curhigh, FILE_BEGIN); } } } |