[Glibc-bsd-commits] r2030 - trunk/glibc-ports/kfreebsd

[ps-guest at alioth.debian.org]

Author: ps-guest
Date: 2007-11-16 18:45:36 +0000 (Fri, 16 Nov 2007)
New Revision: 2030

Added:
   trunk/glibc-ports/kfreebsd/unlockpt.c
Log:
* add our specific unlockpt.c (we already have getpt.c and ptsname.c)



Added: trunk/glibc-ports/kfreebsd/unlockpt.c
===================================================================
--- trunk/glibc-ports/kfreebsd/unlockpt.c	                        (rev 0)
+++ trunk/glibc-ports/kfreebsd/unlockpt.c	2007-11-16 18:45:36 UTC (rev 2030)
@@ -0,0 +1,45 @@
+/* Copyright (C) 2007 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+
+int
+__unlockpt (int fd)
+{
+  struct stat64 st;
+
+  /* there is no need/way to do unlocking of slave pseudo-terminal device,
+     just check whether fd might be valid master pseudo-terminal device */
+
+  if (__fxstat64 (_STAT_VER, fd, &st) < 0)
+    return -1;
+
+  if (!(S_ISCHR (st.st_mode)))
+  {
+    __set_errno (ENOTTY);
+    return -1;
+  }
+
+  return 0;
+}
+
+weak_alias (__unlockpt, unlockpt)