From 7e16e552e24859025e9029c9f24277596b59b3be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= <egil@erlang.org>
Date: Tue, 27 Jan 2015 16:06:01 +0100
Subject: erts: Use closefrom() if available when closing fds

closefrom() was only used in the vfork() case before, now also
used in the fork() case.
---
 erts/emulator/sys/unix/sys.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'erts/emulator/sys')

diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 0d677d5f34..ef38d3ecaa 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -1574,9 +1574,13 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op
 			goto child_error;
 	    }
 
+#if defined(HAVE_CLOSEFROM)
+	    closefrom(opts->use_stdio ? 3 : 5);
+#else
 	    for (i = opts->use_stdio ? 3 : 5; i < max_files; i++)
 		(void) close(i);
-	    
+#endif
+
 	    if (opts->wd && chdir(opts->wd) < 0)
 		goto child_error;
 
-- 
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