37efa4
From 34c649b3601383cd11dbc76221747ec16fd68e1b Mon Sep 17 00:00:00 2001
37efa4
From: Werner Koch <wk@gnupg.org>
37efa4
Date: Tue, 14 Jun 2022 11:33:27 +0200
37efa4
Subject: [PATCH GnuPG] g10: Fix garbled status messages in NOTATION_DATA
37efa4
37efa4
* g10/cpr.c (write_status_text_and_buffer): Fix off-by-one
37efa4
--
37efa4
37efa4
Depending on the escaping and line wrapping the computed remaining
37efa4
buffer length could be wrong.  Fixed by always using a break to
37efa4
terminate the escape detection loop.  Might have happened for all
37efa4
status lines which may wrap.
37efa4
37efa4
GnuPG-bug-id: T6027
37efa4
---
37efa4
 g10/cpr.c | 13 ++++---------
37efa4
 1 file changed, 4 insertions(+), 9 deletions(-)
37efa4
37efa4
diff --git a/g10/cpr.c b/g10/cpr.c
37efa4
index 9bfdd3c34..fa8005d6f 100644
37efa4
--- a/g10/cpr.c
37efa4
+++ b/g10/cpr.c
37efa4
@@ -372,20 +372,15 @@ write_status_text_and_buffer (int no, const char *string,
37efa4
             }
37efa4
           first = 0;
37efa4
         }
37efa4
-      for (esc=0, s=buffer, n=len; n && !esc; s++, n--)
37efa4
+      for (esc=0, s=buffer, n=len; n; s++, n--)
37efa4
         {
37efa4
           if (*s == '%' || *(const byte*)s <= lower_limit
37efa4
               || *(const byte*)s == 127 )
37efa4
             esc = 1;
37efa4
           if (wrap && ++count > wrap)
37efa4
-            {
37efa4
-              dowrap=1;
37efa4
-              break;
37efa4
-            }
37efa4
-        }
37efa4
-      if (esc)
37efa4
-        {
37efa4
-          s--; n++;
37efa4
+            dowrap=1;
37efa4
+          if (esc || dowrap)
37efa4
+            break;
37efa4
         }
37efa4
       if (s != buffer)
37efa4
         es_fwrite (buffer, s-buffer, 1, statusfp);
37efa4
-- 
37efa4
2.37.1
37efa4