gentoo-overlay/app-shells/bash/files/bash-2.05b-empty-herestring.patch

###################################################################
# Added by Tavis Ormandy <taviso@gentoo.org> 01/05/2003
# Reproduce with
#
#  $ xargs <<< ${EMTPY_VARIABLE}
#  Segmentation fault.
#
# note: bash will still give you a "\n" with this patch, but this is
# standard behaviour, if you need proof:
#
#  $ wc -l <<< ""
###############################

--- bash-2.05b/redir.c
+++ bash-2.05b/redir.c
@@ -263,7 +263,7 @@
   int herelen, n, e;
 
   herestr = expand_string_to_string (redirectee->word, 0);
-  herelen = strlen (herestr);
+  herelen = (herestr == NULL) ? 0 : strlen (herestr);
 
   n = write (fd, herestr, herelen);
   if (n == herelen)
     {