From: ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Mon, 19 Mar 2007 16:36:43 +0000 (+0000)
Subject: Close file descriptors when execing network tap setup script, by
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=50d3eeae384382671952bc40e00a58f5ab00fed0;p=qmiga%2Fqemu.git

Close file descriptors when execing network tap setup script, by
Daniel P. Berrange.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2507 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/vl.c b/vl.c
index e77ed41249..f368d9bba2 100644
--- a/vl.c
+++ b/vl.c
@@ -3621,6 +3621,14 @@ static int net_tap_init(VLANState *vlan, const char *ifname1,
         pid = fork();
         if (pid >= 0) {
             if (pid == 0) {
+                int open_max = sysconf (_SC_OPEN_MAX), i;
+                for (i = 0; i < open_max; i++)
+                    if (i != STDIN_FILENO &&
+                        i != STDOUT_FILENO &&
+                        i != STDERR_FILENO &&
+                        i != fd)
+                        close(i);
+
                 parg = args;
                 *parg++ = (char *)setup_script;
                 *parg++ = ifname;