[SCM] GNU Mailutils branch, master, updated. release-2.2-690-g6074d4d

[Sergey Poznyakoff]

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http://git.savannah.gnu.org/cgit/mailutils.git/commit/?id=6074d4d856c861d0a5df9b39d7421bc186ce2056

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- Log -----------------------------------------------------------------
commit 6074d4d856c861d0a5df9b39d7421bc186ce2056
Author: Sergey Poznyakoff <address@hidden>
Date:   Wed Dec 3 13:25:34 2014 +0200

    Fix eventual memory overrun
    
    * mail/mail.c (mail_mainloop): Check command length before
    trying to access its last byte.

-----------------------------------------------------------------------

Summary of changes:
 mail/mail.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mail/mail.c b/mail/mail.c
index f072e34..afdadd4 100644
--- a/mail/mail.c
+++ b/mail/mail.c
@@ -558,7 +558,7 @@ mail_mainloop (char *(*input) (void *, int),
   while ((command = (*input) (closure, 0)) != NULL)
     {
       int len = strlen (command);
-      while (command[len-1] == '\\')
+      while (len > 0 && command[len-1] == '\\')
        {
          char *buf;
          char *command2 = (*input) (closure, 1);


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