1 files changed, 9 insertions, 2 deletions

diff --git a/kmicromail/libetpan/tools/mailstream_helper.c b/kmicromail/libetpan/tools/mailstream_helper.c
index 146f955..92f4ffe 100644
--- a/kmicromail/libetpan/tools/mailstream_helper.c
+++ b/kmicromail/libetpan/tools/mailstream_helper.c
@@ -85,34 +85,41 @@ char * mailstream_read_line_append(mailstream * stream, MMAPString * line)
       while (i < stream->read_buffer_len) {
         if (stream->read_buffer[i] == '\n')
           return mailstream_read_len_append(stream, line, i + 1);
         i++;
       }
       if (mailstream_read_len_append(stream, line,
                                      stream->read_buffer_len) == NULL)
         return NULL;
     }
     else {
       ssize_t r;
       
       r = mailstream_feed_read_buffer(stream);
       if (r == -1)
         return NULL;
 
-      if (r == 0)
-        break;
+      if (r == 0) {
+          // LR
+          // this avoids a memory access violation later when trying
+          // to remove_trailing_eol from a null string
+          if ( line->len == 0 )
+              return NULL;
+          else
+              break;
+      }
     }
   }
   while (1);
 
   return line->str;
 }
 
 char * mailstream_read_line_remove_eol(mailstream * stream, MMAPString * line)
 {
   if (!mailstream_read_line(stream, line))
     return NULL;
 
   remove_trailing_eol(line);
 
   return line->str;
 }