New module 'sys_ioctl'.

[gnulib.git] / lib / sys_ioctl.in.h

diff --git a/lib/sys_ioctl.in.h b/lib/sys_ioctl.in.h
new file mode 100644 (file)
index 0000000..221177a
--- /dev/null
+++ b/lib/sys_ioctl.in.h
@@ -0,0 +1,68 @@
+/* Substitute for and wrapper around <sys/ioctl.h>.
+   Copyright (C) 2008 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
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program 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 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.  */
+
+#ifndef _GL_SYS_IOCTL_H
+
+@PRAGMA_SYSTEM_HEADER@
+
+/* The include_next requires a split double-inclusion guard.  */
+#if @HAVE_SYS_IOCTL_H@
+# @INCLUDE_NEXT@ @NEXT_SYS_IOCTL_H@
+#endif
+
+#ifndef _GL_SYS_IOCTL_H
+#define _GL_SYS_IOCTL_H
+
+/* AIX 5.1 and Solaris 10 declare ioctl() in <unistd.h> and in <stropts.h>,
+   but not in <sys/ioctl.h>.  */
+#include <unistd.h>
+
+/* The definition of GL_LINK_WARNING is copied here.  */
+
+
+/* Declare overridden functions.  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if @GNULIB_IOCTL@
+# if @SYS_IOCTL_H_HAVE_WINSOCK2_H@
+#  undef ioctl
+#  define ioctl rpl_ioctl
+extern int ioctl (int fd, int request, ... /* {void *,char *} arg */);
+# endif
+#elif @SYS_IOCTL_H_HAVE_WINSOCK2_H@
+# undef ioctl
+# define ioctl ioctl_used_without_requesting_gnulib_module_ioctl
+#elif defined GNULIB_POSIXCHECK
+# undef ioctl
+# define ioctl(f,c,a) \
+    (GL_LINK_WARNING ("ioctl does not portably work on sockets - " \
+                      "use gnulib module ioctl for portability"), \
+     ioctl (f, c, a))
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _GL_SYS_IOCTL_H */
+#endif /* _GL_SYS_IOCTL_H */