From: Ken Hornstein <kenh@pobox.com>
Date: Thu, 6 Mar 2014 19:59:35 +0000 (-0500)
Subject: Prevent crash if editfile() is called and both "*ed" and editsave
X-Git-Url: https://diplodocus.org/git/nmh/commitdiff_plain/5d6bfc17257fca07962fe000e964c0f690e852d6?hp=66bf17b229b5bd066e5cdc919cc6d41f086a7ed2

Prevent crash if editfile() is called and both "*ed" and editsave
are NULL.  This can happen if you call "mime" and then run "edit" without
any arguments, if you're running whatnow standalone.
---

diff --git a/uip/whatnowsbr.c b/uip/whatnowsbr.c
index f0f9a2c5..774d130c 100644
--- a/uip/whatnowsbr.c
+++ b/uip/whatnowsbr.c
@@ -651,7 +651,7 @@ editfile (char **ed, char **arg, char *file, int use, struct msgs *mp,
     int	slinked = 0;
 
     /* Was there a previous edit session? */
-    if (reedit) {
+    if (reedit && (*ed || edsave)) {
 	if (!*ed) {		/* no explicit editor      */
 	    *ed = edsave;	/* so use the previous one */
 	    if ((cp = r1bindex (*ed, '/')) == NULL)