[hurd] 42/70: trans: register symlink translators as important

[Samuel Thibault]

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sthibault pushed a commit to branch upstream
in repository hurd.

commit 4bb80f906c27beb8a3d7e461d995ec2ec8d6bc87
Author: Justus Winter <address@hidden>
Date:   Thu Aug 15 09:38:03 2013 +0200

    trans: register symlink translators as important
    
    Register any symlink translators running as root as important
    processes at the proc server.
    
    * trans/symlink.c (main): Mark us as important.
---
 trans/symlink.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/trans/symlink.c b/trans/symlink.c
index 03b5100..845a112 100644
--- a/trans/symlink.c
+++ b/trans/symlink.c
@@ -98,6 +98,19 @@ main (int argc, char **argv)
   io_restrict_auth (realnode, &realnodenoauth, 0, 0, 0, 0);
   mach_port_deallocate (mach_task_self (), realnode);
 
+  /* Mark us as important.  */
+  mach_port_t proc = getproc ();
+  if (proc == MACH_PORT_NULL)
+    error (2, err, "cannot get a handle to our process");
+
+  err = proc_mark_important (proc);
+  /* This might fail due to permissions or because the old proc server
+     is still running, ignore any such errors.  */
+  if (err && err != EPERM && err != EMIG_BAD_ID)
+    error (2, err, "Cannot mark us as important");
+
+  mach_port_deallocate (mach_task_self (), proc);
+
   /* Launch */
   while (1)
     {

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