X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/412885bdba907588c5ac8ea789e673c3198d381a..3063baa25c0a8103438ee73051e61f82476861b3:/src/src/auths/plaintext.c

diff --git a/src/src/auths/plaintext.c b/src/src/auths/plaintext.c
index 7a0f78852..fa05b0ad5 100644
--- a/src/src/auths/plaintext.c
+++ b/src/src/auths/plaintext.c
@@ -223,11 +223,7 @@ while ((s = string_nextinlist(&text, &sep, big_buffer, big_buffer_size)))
       if (ss[i+1] != '^')
 	ss[i] = 0;
       else
-        {
-        i++;
-        len--;
-        memmove(ss + i, ss + i + 1, len - i);
-        }
+        if (--len > ++i) memmove(ss + i, ss + i + 1, len - i);
 
   /* The first string is attached to the AUTH command; others are sent
   unembellished. */