This patch fixes a buffer overflow (causing a segfault) that would happen if an ISO-8859-1 client sent a string consisting of many instances of a single extended character (å, ä, ö etc).
The patch is against FiSH v1.0-RC5, and is only relevant if you use the recode support in FiSH.
via pedantic- @ http://blog.ryara.net/2010/06/14/patch-fish-irssi-with-recode/