From 474f849ef17962ae5f355c8981e280a4ab83a40d Mon Sep 17 00:00:00 2001
From: Richard T Bonhomme <tincantech@protonmail.com>
Date: Tue, 14 May 2024 23:54:32 +0100
Subject: [PATCH] sign-req with SAN: Add POSIX related comment for 'grep -A'
 use

Signed-off-by: Richard T Bonhomme <tincantech@protonmail.com>
---
 easyrsa3/easyrsa | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/easyrsa3/easyrsa b/easyrsa3/easyrsa
index bd996fa15..51f8edc0e 100755
--- a/easyrsa3/easyrsa
+++ b/easyrsa3/easyrsa
@@ -2539,10 +2539,11 @@ Forced subject=
 			grep -s 'X509v3 Subject Alternative Name'
 		then
 			# extract requested SAN
+			# 'grep -A' may not be strictly POSIX, die on error
 			req_x509_san="$(
 				echo "$req_text" | \
 					grep -A 1 'X509v3 Subject Alternative Name'
-			)" || die "sign-req: req_x509_san: grep -A 1 "
+			)" || die "sign-req: req_x509_san: grep -A 1 (POSIX)"
 		else
 			# No requested SAN
 			req_x509_san=