1 /* An lseek() function that detects pipes.
2 Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public License along
15 with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
23 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
24 /* Windows platforms. */
25 /* Get GetFileType. */
28 # include <sys/stat.h>
35 rpl_lseek (int fd
, off_t offset
, int whence
)
37 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
38 /* mingw lseek mistakenly succeeds on pipes, sockets, and terminals. */
39 HANDLE h
= (HANDLE
) _get_osfhandle (fd
);
40 if (h
== INVALID_HANDLE_VALUE
)
45 if (GetFileType (h
) != FILE_TYPE_DISK
)
51 /* BeOS lseek mistakenly succeeds on pipes... */
53 if (fstat (fd
, &statbuf
) < 0)
55 if (!S_ISREG (statbuf
.st_mode
))
61 return lseek (fd
, offset
, whence
);