================
Written by Hallvard B. Furuseth and placed into the public domain.
This software is not subject to any license of the University of Oslo.
================
Here are fixes for more places where the argument to ctype.h functions
should be in the range of `unsigned char'.
Explanation of the last patch (to schema_init.c:bvcasechr()):
TOLOWER() and TOUPPER() return values in the range of `unsigned char',
but bvcasechr() then compares those values with a plain `char'. So I
convert the return values from TOLOWER()/TOUPPER() to `char' first.
Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>, April 2002.
================
Written by Hallvard B. Furuseth and placed into the public domain.
This software is not subject to any license of the University of Oslo.
================
maildap could address buf[-1] if len was < 2.
REWRITE_SUBMATCH_ESCAPE is '%', not '\'.
librewrite and saslautz could walk past the end of a string which
ended with an escape character.
Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>, April 2002.
copy of the code formerly in mail500, to properly track changes. An
exception is mail500.m4 that has been committed as maildap.m4 directly
to avoid breaking history twice.
