# HG changeset patch
# User Roy Marples <roy@marples.name>
# Date 1602348843 -3600
# Node ID cf82a4ba8f27a2381798954acbe2bd08b072727b
# Parent  93df3880bcaa5c02d6d21ee57c870f8b164363b8
privsep: We need to ensure stderr is valid before testing if tty

diff -r 93df3880bcaa -r cf82a4ba8f27 src/privsep.c
--- a/src/privsep.c	Sat Oct 10 15:07:38 2020 +0100
+++ b/src/privsep.c	Sat Oct 10 17:54:03 2020 +0100
@@ -167,7 +167,8 @@
 	 * Obviously this won't work if we are using a logfile
 	 * or redirecting stderr to a file. */
 	if (ctx->logfile == NULL &&
-	    (ctx->options & DHCPCD_STARTED || isatty(STDERR_FILENO) == 1))
+	    (ctx->options & DHCPCD_STARTED ||
+	     (ctx->stderr_valid && isatty(STDERR_FILENO) == 1)))
 	{
 		if (setrlimit(RLIMIT_FSIZE, &rzero) == -1)
 			logerr("setrlimit RLIMIT_FSIZE");