From 35c2958ae4caf70a3074f59fbceeb24cfe82f902 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 6 Jul 2021 08:18:38 +0000
Subject: Forbid empty session names, GitHub issue 2758.

---
 session.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'session.c')

diff --git a/session.c b/session.c
index 93d50b47..cb0093a2 100644
--- a/session.c
+++ b/session.c
@@ -237,6 +237,8 @@ session_check_name(const char *name)
 {
 	char	*copy, *cp, *new_name;
 
+	if (*name == '\0')
+		return (NULL);
 	copy = xstrdup(name);
 	for (cp = copy; *cp != '\0'; cp++) {
 		if (*cp == ':' || *cp == '.')
-- 
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