From 528f10be6c3f38fdb99193e8fff1e810c5ccb1c5 Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Wed, 9 Jul 2014 14:08:09 +0000
Subject: [PATCH] util/passwd.c: check errno only if spw is NULL

this is more reliable. there is a difference between glibc and musl
errno if /etc/tcb/<name>/shadow doesn't exist.
---
 util/passwd.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/util/passwd.c b/util/passwd.c
index 2d91763..d805955 100644
--- a/util/passwd.c
+++ b/util/passwd.c
@@ -38,11 +38,11 @@ pw_check(struct passwd *pw, const char *pass)
 	if (pw->pw_passwd[0] == 'x' && pw->pw_passwd[1] == '\0') {
 		errno = 0;
 		spw = getspnam(pw->pw_name);
-		if (errno) {
-			weprintf("getspnam: %s:", pw->pw_name);
-			return -1;
-		} else if (!spw) {
-			weprintf("who are you?\n");
+		if (!spw) {
+			if (errno)
+				weprintf("getspnam: %s:", pw->pw_name);
+			else
+				weprintf("who are you?\n");
 			return -1;
 		}
 		p = spw->sp_pwdp;