[hurd] 04/12: Make fakeroot forward send errors instead of crashing

[Samuel Thibault]

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sthibault pushed a commit to branch upstream
in repository hurd.

commit d0716c74b5fa2aead849fc4132a0f7fdfce02575
Author: Samuel Thibault <address@hidden>
Date:   Mon Feb 15 20:46:12 2016 +0100

    Make fakeroot forward send errors instead of crashing
    
    * trans/fakeroot.c (netfs_demuxer): When forwarding an unknown request fail,
    forward the error instead of crashing.
---
 trans/fakeroot.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/trans/fakeroot.c b/trans/fakeroot.c
index 64f3208..cb4f818 100644
--- a/trans/fakeroot.c
+++ b/trans/fakeroot.c
@@ -1032,10 +1032,12 @@ netfs_demuxer (mach_msg_header_t *inp,
          err = mach_msg (inp, MACH_SEND_MSG, inp->msgh_size, 0,
                          MACH_PORT_NULL, MACH_MSG_TIMEOUT_NONE,
                          MACH_PORT_NULL);
-         assert_perror (err);  /* XXX should synthesize reply */
+         if (err)
+           ((mig_reply_header_t *) outp)->RetCode = err;
+         else
+           /* We already sent the message, so the server loop shouldn't do it 
again.  */
+           ((mig_reply_header_t *) outp)->RetCode = MIG_NO_REPLY;
          ports_port_deref (cred);
-         /* We already sent the message, so the server loop shouldn't do it 
again.  */
-         ((mig_reply_header_t *) outp)->RetCode = MIG_NO_REPLY;
          return 1;
        }
     }

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