From 87db974a84ceccad7bda724db89fbe12539e84fb Mon Sep 17 00:00:00 2001
From: Daniel Shahaf <d.s@daniel.shahaf.name>
Date: Tue, 19 Nov 2019 19:20:25 +0000
Subject: users/24451: zgetcwd: Add a guard against returning an empty string.

---
 ChangeLog    | 3 +++
 Src/compat.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index ba132c95d..ce0ddb4d6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2019-11-19  Daniel Shahaf  <d.s@daniel.shahaf.name>
 
+	* users/24451: Src/compat.c: zgetcwd: Add a guard against
+	returning an empty string.
+
 	* unposted: Test/W01history.ztst: Add smoke test for :P history
 	modifier.
 
diff --git a/Src/compat.c b/Src/compat.c
index 7131d91a4..02b66a780 100644
--- a/Src/compat.c
+++ b/Src/compat.c
@@ -519,7 +519,7 @@ zgetcwd(void)
 #endif /* HAVE_GETCWD */
     if (!ret)
 	ret = unmeta(pwd);
-    if (!ret)
+    if (!ret || *ret == '\0')
 	ret = dupstring(".");
     return ret;
 }
-- 
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