From: David Levine <levinedl@acm.org>
Date: Wed, 18 Nov 2015 23:02:43 +0000 (-0500)
Subject: If format_datetime() returns null, store a copy of node->value on c->c_text
X-Git-Url: https://diplodocus.org/git/nmh/commitdiff_plain/33ee48487aba4989607d930e341032005de02004?ds=sidebyside;hp=ba8b265a8211b2052b424dc9bd7ea391a8ded87a

If format_datetime() returns null, store a copy of node->value on c->c_text
to prevent a double free().
---

diff --git a/uip/mhical.c b/uip/mhical.c
index eb26c388..8ab305aa 100644
--- a/uip/mhical.c
+++ b/uip/mhical.c
@@ -642,7 +642,7 @@ display (FILE *file, contentline *clines, char *nfs) {
                 } else if (! strcasecmp ("DTSTART", node->name)) {
                     /* Got it:  DTSTART outside of a VTIMEZONE section. */
                     char *datetime = format_datetime (timezones, node);
-                    c->c_text = datetime ? datetime : node->value;
+                    c->c_text = datetime ? datetime : strdup(node->value);
                 }
             }
         }
@@ -651,7 +651,7 @@ display (FILE *file, contentline *clines, char *nfs) {
     if ((c = fmt_findcomp ("dtend"))) {
         if ((node = find_contentline (clines, "DTEND", 0))  &&  node->value) {
             char *datetime = format_datetime (timezones, node);
-            c->c_text = datetime ? datetime : node->value;
+            c->c_text = datetime ? datetime : strdup(node->value);
         }
     }