maint: update copyright

[gnulib.git] / lib / lseek.c

diff --git a/lib/lseek.c b/lib/lseek.c
index 03830a9..c7c39a6 100644 (file)
--- a/lib/lseek.c
+++ b/lib/lseek.c
@@ -1,5 +1,5 @@
 /* An lseek() function that detects pipes.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009-2014 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -12,17 +12,22 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
 /* Specification.  */
 #include <unistd.h>
 
-/* Get GetFileType.  The replacement lseek is only used on mingw, so
-   this include can be unconditional.  */
-#include <windows.h>
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Windows platforms.  */
+/* Get GetFileType.  */
+# include <windows.h>
+/* Get _get_osfhandle.  */
+# include "msvc-nothrow.h"
+#else
+# include <sys/stat.h>
+#endif
 #include <errno.h>
 
 #undef lseek
@@ -30,6 +35,7 @@
 off_t
 rpl_lseek (int fd, off_t offset, int whence)
 {
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
   /* mingw lseek mistakenly succeeds on pipes, sockets, and terminals.  */
   HANDLE h = (HANDLE) _get_osfhandle (fd);
   if (h == INVALID_HANDLE_VALUE)
@@ -42,5 +48,20 @@ rpl_lseek (int fd, off_t offset, int whence)
       errno = ESPIPE;
       return -1;
     }
+#else
+  /* BeOS lseek mistakenly succeeds on pipes...  */
+  struct stat statbuf;
+  if (fstat (fd, &statbuf) < 0)
+    return -1;
+  if (!S_ISREG (statbuf.st_mode))
+    {
+      errno = ESPIPE;
+      return -1;
+    }
+#endif
+#if _GL_WINDOWS_64_BIT_OFF_T
+  return _lseeki64 (fd, offset, whence);
+#else
   return lseek (fd, offset, whence);
+#endif
 }