From: Jason A. Donenfeld <Jason@zx2c4.com>
Date: Sun, 14 Mar 2021 04:20:19 +0000 (-0700)
Subject: wg-quick: freebsd: avoid writing private keys to /tmp
X-Git-Tag: v1.0.20210315~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9c811e0f2d87b84388d1a3b78865384940b30e10;p=thirdparty%2Fwireguard-tools.git

wg-quick: freebsd: avoid writing private keys to /tmp

FreeBSD's bash doesn't handle <(...) safely, creating a temporary file
instead of using /proc/self/fd/N like on Linux. Work around this by
using a simple pipeline with /dev/stdin.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---

diff --git a/src/wg-quick/freebsd.bash b/src/wg-quick/freebsd.bash
index c6744d3..88aa2b4 100755
--- a/src/wg-quick/freebsd.bash
+++ b/src/wg-quick/freebsd.bash
@@ -349,7 +349,7 @@ add_route() {
 }
 
 set_config() {
-	cmd wg setconf "$INTERFACE" <(echo "$WG_CONFIG")
+	echo "$WG_CONFIG" | cmd wg setconf "$INTERFACE" /dev/stdin
 }
 
 save_config() {