From 543b2580c78c0f6ed12630d9e63a0420d37b8348 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Sat, 20 Apr 2019 03:05:07 -0500
Subject: Add xunsetenv() for the error checking.

---
 lib/env.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'lib/env.c')

diff --git a/lib/env.c b/lib/env.c
index 94ea0a4e..35ef688c 100644
--- a/lib/env.c
+++ b/lib/env.c
@@ -80,6 +80,12 @@ void xsetenv(char *name, char *val)
   environ[i] = new;
 }
 
+void xunsetenv(char *name)
+{
+  if (strchr(name, '=')) error_exit("xunsetenv %s name has =", name);
+  xsetenv(name, 0);
+}
+
 // reset environment for a user, optionally clearing most of it
 void reset_env(struct passwd *p, int clear)
 {
-- 
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