* hurd/hurdselect.c (_hurd_select): Fix

	MACH_MSG_TYPE_INTEGER_T -> integer_t in sizeof.
	Use a union rather than casts to compare mach_msg_type_t as int.

2002-03-25  Roland McGrath  <roland@frob.com>

	* hurd/hurdchdir.c (_hurd_change_directory_port_from_name): Don't
	check off the end of NAME when it's shorter than 2 chars.
	Reported by Ognyan Kulev <ogi@fmi.uni-sofia.bg>.

2002-03-17  Roland McGrath  <roland@frob.com>

	* sysdeps/mach/hurd/i386/sys/io.h: New file.
	* sysdeps/mach/hurd/i386/ioperm.c: New file.
	* sysdeps/mach/hurd/i386/Dist: Add them.
	* sysdeps/mach/hurd/i386/Versions
	(libc: GLIBC_2.2.6): New set, add ioperm.
	* sysdeps/mach/configure.in: New check to set HAVE_I386_IO_PERM_MODIFY.
	(mach_interface_list): Check for mach_i386.defs.
	* config.h.in (HAVE_I386_IO_PERM_MODIFY): #undef it.
	* sysdeps/mach/configure: Regenerated.

4 files changed, 234 insertions, 0 deletions

diff --git a/sysdeps/mach/hurd/i386/Dist b/sysdeps/mach/hurd/i386/Dist
index c58180257e..82c44df00b 100644
--- a/sysdeps/mach/hurd/i386/Dist
+++ b/sysdeps/mach/hurd/i386/Dist
@@ -1 +1,3 @@
 static-start.S
+sys/io.h
+ioperm.c
diff --git a/sysdeps/mach/hurd/i386/Versions b/sysdeps/mach/hurd/i386/Versions
index 5731d9e01e..67e6d94204 100644
--- a/sysdeps/mach/hurd/i386/Versions
+++ b/sysdeps/mach/hurd/i386/Versions
@@ -4,4 +4,7 @@ libc {
     __register_frame; __register_frame_table; __deregister_frame;
     __frame_state_for; __register_frame_info_table;
   }
+  GLIBC_2.2.6 {
+    ioperm;
+  }
 }
diff --git a/sysdeps/mach/hurd/i386/ioperm.c b/sysdeps/mach/hurd/i386/ioperm.c
new file mode 100644
index 0000000000..4a3cd77164
--- /dev/null
+++ b/sysdeps/mach/hurd/i386/ioperm.c
@@ -0,0 +1,51 @@
+/* Access to hardware i/o ports.  Hurd/x86 version.
+   Copyright (C) 2002 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 <sys/io.h>
+#include <hurd.h>
+#include <mach/i386/mach_i386.h>
+
+int
+ioperm (unsigned long int from, unsigned long int num, int turn_on)
+{
+#if ! HAVE_I386_IO_PERM_MODIFY
+  return __hurd_fail (ENOSYS);
+#else
+  error_t err;
+  device_t devmaster;
+
+  /* With the device master port we get a capability that represents
+     this range of io ports.  */
+  err = __get_privileged_ports (NULL, &devmaster);
+  if (! err)
+    {
+      io_perm_t perm;
+      err = __i386_io_perm_create (devmaster, from, from + num, &perm);
+      __mach_port_deallocate (__mach_task_self (), devmaster);
+      if (! err)
+	{
+	  /* Now we add or remove that set from our task's bitmap.  */
+	  err = __i386_io_perm_modify (__mach_task_self (), perm, turn_on);
+	  __mach_port_deallocate (__mach_task_self (), perm);
+	}
+    }
+
+  return err ? __hurd_fail (err) : 0;
+#endif
+}
diff --git a/sysdeps/mach/hurd/i386/sys/io.h b/sysdeps/mach/hurd/i386/sys/io.h
new file mode 100644
index 0000000000..49ac9985a9
--- /dev/null
+++ b/sysdeps/mach/hurd/i386/sys/io.h
@@ -0,0 +1,178 @@
+/* Access to hardware i/o ports.  GNU/x86 version.
+   Copyright (C) 2002 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.  */
+
+#ifndef	_SYS_IO_H
+#define	_SYS_IO_H	1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* If TURN_ON is TRUE, request for permission to do direct i/o on the
+   port numbers in the range [FROM,FROM+NUM-1].  Otherwise, turn I/O
+   permission off for that range.  This call requires root privileges.  */
+extern int ioperm (unsigned long int __from, unsigned long int __num,
+                   int __turn_on) __THROW;
+
+/* Set the I/O privilege level to LEVEL.  If LEVEL>3, permission to
+   access any I/O port is granted.  This call requires root
+   privileges. */
+extern int iopl (int __level) __THROW;
+
+#if defined __GNUC__ && __GNUC__ >= 2
+
+static __inline unsigned char
+inb (unsigned short int port)
+{
+  unsigned char _v;
+
+  __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
+  return _v;
+}
+
+static __inline unsigned char
+inb_p (unsigned short int port)
+{
+  unsigned char _v;
+
+  __asm__ __volatile__ ("inb %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+  return _v;
+}
+
+static __inline unsigned short int
+inw (unsigned short int port)
+{
+  unsigned short _v;
+
+  __asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port));
+  return _v;
+}
+
+static __inline unsigned short int
+inw_p (unsigned short int port)
+{
+  unsigned short int _v;
+
+  __asm__ __volatile__ ("inw %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+  return _v;
+}
+
+static __inline unsigned int
+inl (unsigned short int port)
+{
+  unsigned int _v;
+
+  __asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port));
+  return _v;
+}
+
+static __inline unsigned int
+inl_p (unsigned short int port)
+{
+  unsigned int _v;
+  __asm__ __volatile__ ("inl %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+  return _v;
+}
+
+static __inline void
+outb (unsigned char value, unsigned short int port)
+{
+  __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline void
+outb_p (unsigned char value, unsigned short int port)
+{
+  __asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80": :"a" (value),
+			"Nd" (port));
+}
+
+static __inline void
+outw (unsigned short int value, unsigned short int port)
+{
+  __asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
+
+}
+
+static __inline void
+outw_p (unsigned short int value, unsigned short int port)
+{
+  __asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80": :"a" (value),
+			"Nd" (port));
+}
+
+static __inline void
+outl (unsigned int value, unsigned short int port)
+{
+  __asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline void
+outl_p (unsigned int value, unsigned short int port)
+{
+  __asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80": :"a" (value),
+			"Nd" (port));
+}
+
+static __inline void
+insb (unsigned short int port, void *addr, unsigned long int count)
+{
+  __asm__ __volatile__ ("cld ; rep ; insb":"=D" (addr),
+			"=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+insw (unsigned short int port, void *addr, unsigned long int count)
+{
+  __asm__ __volatile__ ("cld ; rep ; insw":"=D" (addr),
+			"=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+insl (unsigned short int port, void *addr, unsigned long int count)
+{
+  __asm__ __volatile__ ("cld ; rep ; insl":"=D" (addr),
+			"=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsb (unsigned short int port, const void *addr, unsigned long int count)
+{
+  __asm__ __volatile__ ("cld ; rep ; outsb":"=S" (addr),
+			"=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsw (unsigned short int port, const void *addr, unsigned long int count)
+{
+  __asm__ __volatile__ ("cld ; rep ; outsw":"=S" (addr),
+			"=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsl (unsigned short int port, const void *addr, unsigned long int count)
+{
+  __asm__ __volatile__ ("cld ; rep ; outsl":"=S" (addr),
+			"=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+#endif	/* GNU C */
+
+__END_DECLS
+#endif /* _SYS_IO_H */