From f311d711c30f7845baf3f86a7f3727fa96b1e711 Mon Sep 17 00:00:00 2001
From: Miles Bader <miles@gnu.org>
Date: Tue, 22 Jul 1997 21:26:55 +0000
Subject: (trivfs_S_io_read):   Return EINVAL instead of EBADF.
 (trivfs_S_io_map):   Return EINVAL if CRED cannot be read or written.

---
 storeio/io.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'storeio/io.c')

diff --git a/storeio/io.c b/storeio/io.c
index 4586c683..9c5673c0 100644
--- a/storeio/io.c
+++ b/storeio/io.c
@@ -41,6 +41,8 @@ trivfs_S_io_map (struct trivfs_protid *cred,
 {
   if (! cred)
     return EOPNOTSUPP;
+  else if (! (cred->po->openmodes & (O_READ|O_WRITE)))
+    return EINVAL;
   else
     {
       mach_port_t memobj;
@@ -86,7 +88,7 @@ trivfs_S_io_read (struct trivfs_protid *cred,
   if (! cred)
     return EOPNOTSUPP;
   else if (!(cred->po->openmodes & O_READ))
-    return EBADF;
+    return EINVAL;
   else
     return open_read ((struct open *)cred->po->hook,
 		      offs, amount, (void **)data, data_len);
-- 
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