From 8be9b48be685645e2f5b977de10492108581352c Mon Sep 17 00:00:00 2001
From: Jeff Johnston <jjohnstn@redhat.com>
Date: Mon, 12 Nov 2001 21:04:41 +0000
Subject: 2001-11-12  Hans-Peter Nilsson  <hp@bitrange.com>

        * libc/include/machine/ieeefp.h: Add support for mmix target.
        * libc/include/machine/setjmp.h: Ditto.
        * configure.host: Ditto.
        * libc/sys/mmixware/Makefile.am, libc/sys/mmixware/_exit.c,
        libc/sys/mmixware/access.c, libc/sys/mmixware/aclocal.m4,
        libc/sys/mmixware/chmod.c, libc/sys/mmixware/chown.c,
        libc/sys/mmixware/close.c, libc/sys/mmixware/configure.in,
        libc/sys/mmixware/creat.c, libc/sys/mmixware/crt0.c,
        libc/sys/mmixware/execv.c, libc/sys/mmixware/execve.c,
        libc/sys/mmixware/fork.c, libc/sys/mmixware/fstat.c,
        libc/sys/mmixware/getpid.c, libc/sys/mmixware/gettime.c,
        libc/sys/mmixware/isatty.c, libc/sys/mmixware/kill.c,
        libc/sys/mmixware/lseek.c, libc/sys/mmixware/open.c,
        libc/sys/mmixware/pipe.c, libc/sys/mmixware/read.c,
        libc/sys/mmixware/sbrk.c, libc/sys/mmixware/setjmp.S,
        libc/sys/mmixware/stat.c, libc/sys/mmixware/sys/syscall.h,
        libc/sys/mmixware/time.c, libc/sys/mmixware/times.c,
        libc/sys/mmixware/unlink.c, libc/sys/mmixware/utime.c,
        libc/sys/mmixware/wait.c, libc/sys/mmixware/write.c: New files.
        * libc/sys/mmixware/configure, libc/sys/mmixware/Makefile.in,
        libc/sys/mmixware/aclocal.m4: Generate.
---
 newlib/libc/sys/mmixware/access.c | 41 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 newlib/libc/sys/mmixware/access.c

(limited to 'newlib/libc/sys/mmixware/access.c')

diff --git a/newlib/libc/sys/mmixware/access.c b/newlib/libc/sys/mmixware/access.c
new file mode 100644
index 000000000..a3cfeacfd
--- /dev/null
+++ b/newlib/libc/sys/mmixware/access.c
@@ -0,0 +1,41 @@
+/* access for MMIXware.
+
+   Copyright (C) 2001 Hans-Peter Nilsson.
+
+   Permission to use, copy, modify, and distribute this software is freely
+   granted, provided that this notice is preserved with no changes.
+   THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+   IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+   PURPOSE.  */
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include "sys/syscall.h"
+#include <errno.h>
+
+int
+access (const char *fn, int flags)
+{
+  /* Ugh.  We don't have stat (), so we can't copy the other
+     implementations.  Opening a directory as a file usually works, so
+     let's try and open it and use the openability, regardless of what
+     kind of test or file it is.  */
+  long ret;
+
+  /* We'll just assume that if we can open the file for reading, then it's
+     Z-able, no matter what Z was.  */
+  ret = TRAP3f (SYS_Fopen, TMPFNO, fn, BinaryRead);
+  if (ret == 0)
+    {
+      /* Yes, this was readable.  As in other simulator access functions,
+       we always return success in this case (though the others check
+       for directory access).  */
+      TRAP1f (SYS_Fclose, TMPFNO);
+      return 0;
+    }
+
+  errno = EACCES;
+  return -1;
+}
-- 
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