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authorUlrich Drepper <drepper@redhat.com>2009-03-16 22:33:01 +0000
committerUlrich Drepper <drepper@redhat.com>2009-03-16 22:33:01 +0000
commitd9822dbe663a7cefe32979e09a186f739ea8b769 (patch)
tree223a75f50009f160812a894cb187a71b64976d2c /nscd/connections.c
parent2ca285b098890abde89fc79bbaf69432b14f18d1 (diff)
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* nscd/connections.c (restart): Try to preserve the process name
	by reading the /proc/self/exe symlink and using the return name.
	Patch by Jeff Bastian <jbastian@redhat.com>.
Diffstat (limited to 'nscd/connections.c')
-rw-r--r--nscd/connections.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/nscd/connections.c b/nscd/connections.c
index 3d0727f33b..234e289f00 100644
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -1418,7 +1418,22 @@ cannot change to old working directory: %s; disabling paranoia mode"),
       }
 
   /* The preparations are done.  */
-  execv ("/proc/self/exe", argv);
+#ifdef PATH_MAX
+  char pathbuf[PATH_MAX];
+#else
+  char pathbuf[256];
+#endif
+  /* Try to exec the real nscd program so the process name (as reported
+     in /proc/PID/status) will be 'nscd', but fall back to /proc/self/exe
+     if readlink fails */
+  ssize_t n = readlink ("/proc/self/exe", pathbuf, sizeof (pathbuf) - 1);
+  if (n == -1)
+    execv ("/proc/self/exe", argv);
+  else
+    {
+      pathbuf[n] = '\0';
+      execv (pathbuf, argv);
+    }
 
   /* If we come here, we will never be able to re-exec.  */
   dbg_log (_("re-exec failed: %s; disabling paranoia mode"),