From: Richard Jones <rjones@redhat.com>
Date: Thu, 8 Apr 2010 18:06:00 +0000 (+0100)
Subject: Don't kill self accidentally.
X-Git-Tag: 1.3.2~15
X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=commitdiff_plain;h=dc5df3bfec706803e75a5f2454293db30e753249

Don't kill self accidentally.

Always check that pid > 0 before calling kill (pid, 9).  The
issue was that sometimes pid == 0, and this ends up killing
ourselves.
---

diff --git a/src/guestfs.c b/src/guestfs.c
index ed514dc..d8c856a 100644
--- a/src/guestfs.c
+++ b/src/guestfs.c
@@ -1500,7 +1500,7 @@ guestfs__launch (guestfs_h *g)
     close (wfd[1]);
     close (rfd[0]);
   }
-  kill (g->pid, 9);
+  if (g->pid > 0) kill (g->pid, 9);
   if (g->recoverypid > 0) kill (g->recoverypid, 9);
   waitpid (g->pid, NULL, 0);
   if (g->recoverypid > 0) waitpid (g->recoverypid, NULL, 0);
@@ -1848,7 +1848,7 @@ guestfs__kill_subprocess (guestfs_h *g)
   if (g->verbose)
     fprintf (stderr, "sending SIGTERM to process %d\n", g->pid);
 
-  kill (g->pid, SIGTERM);
+  if (g->pid > 0) kill (g->pid, SIGTERM);
   if (g->recoverypid > 0) kill (g->recoverypid, 9);
 
   return 0;
@@ -1999,7 +1999,7 @@ child_cleanup (guestfs_h *g)
   if (g->verbose)
     fprintf (stderr, "child_cleanup: %p: child process died\n", g);
 
-  /*kill (g->pid, SIGTERM);*/
+  /*if (g->pid > 0) kill (g->pid, SIGTERM);*/
   if (g->recoverypid > 0) kill (g->recoverypid, 9);
   waitpid (g->pid, NULL, 0);
   if (g->recoverypid > 0) waitpid (g->recoverypid, NULL, 0);