From 04b4e75f33ae0775d70b8e33080f46d66275cdcc Mon Sep 17 00:00:00 2001
From: Luiz Capitulino <lcapitulino@redhat.com>
Date: Thu, 10 May 2012 16:50:41 -0300
Subject: qemu-ga: make reopen_fd_to_null() public

The next commit wants to use it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 qemu-ga.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'qemu-ga.c')

diff --git a/qemu-ga.c b/qemu-ga.c
index cf61cb95e5..8d53e04a0f 100644
--- a/qemu-ga.c
+++ b/qemu-ga.c
@@ -140,6 +140,23 @@ static gboolean register_signal_handlers(void)
 
     return true;
 }
+
+/* TODO: use this in place of all post-fork() fclose(std*) callers */
+void reopen_fd_to_null(int fd)
+{
+    int nullfd;
+
+    nullfd = open("/dev/null", O_RDWR);
+    if (nullfd < 0) {
+        return;
+    }
+
+    dup2(nullfd, fd);
+
+    if (nullfd != fd) {
+        close(nullfd);
+    }
+}
 #endif
 
 static void usage(const char *cmd)
-- 
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