From b1ae418af40289ea4f40449a819df26ee3bdd399 Mon Sep 17 00:00:00 2001
From: Sunil Nimmagadda <sunil@nimmagadda.net>
Date: Thu, 5 Nov 2020 12:33:09 +0530
Subject: [PATCH] Fallback definition for HOST_NAME_MAX.

On some platforms(NetBSD) where HOST_NAME_MAX is not defined,
provide a fallback definition to _POSIX_HOST_NAME_MAX.
---
 pam.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pam.c b/pam.c
index c5a3001..ccebd0f 100644
--- a/pam.c
+++ b/pam.c
@@ -271,6 +271,9 @@ pamauth(const char *user, const char *myname, int interactive, int nopass, int p
 		if (!interactive)
 			errx(1, "Authorization required");
 
+#ifndef HOST_NAME_MAX
+#define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
+#endif
 		/* doas style prompt for pam */
 		char host[HOST_NAME_MAX + 1];
 		if (gethostname(host, sizeof(host)))
-- 
2.39.2