From b7e381046719cfea9414fcae6e72de95b9a3d4cc Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 23 Nov 2016 16:27:58 +0000
Subject: [PATCH] regress: playback: Do not accept numeric errno values except
 1..255

In particular do not accept zero, which the operating system won't
produce.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 regress/hplayback.c.m4 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/regress/hplayback.c.m4 b/regress/hplayback.c.m4
index fb4295c..312a04a 100644
--- a/regress/hplayback.c.m4
+++ b/regress/hplayback.c.m4
@@ -124,6 +124,7 @@ static int Perrno(const char *stuff) {
   if (te->n) return te->v;
   r= strtoul(stuff+2,&ep,10);
   if (*ep) Psyntax("errno value not recognised, not numeric");
+  if (r==0 || r>255) Psyntax("numeric errno out of range 1..255");
   return r;
 }
 
-- 
2.30.2