* src/mailfromd.h (enum mf_status_code): Add a comma and a count

definition, needed for make check-exceptions in docs.
* src/status.mfi (m4_ifdef): Use OLD_EXCEPTION_CODES instead of
COMPAT_4_3.
* src/main.c: New command line options: -D (--define), and -U
(--undefine).
* mflib/match_dnsbl.mf (match_dnsbl): Use LAZY_MATCH_RBL instead of
COMPAT_4_3.
Throw e_invip if address is invalid.
* mflib/match_rhsbl.mf (match_rhsbl): Use LAZY_MATCH_RBL instead
of COMPAT_4_3.
* doc/mailfromd.texi: Document variable shadowing and new
features.
* doc/Makefile.am (check-exceptions): Update the rule.
* NEWS: Update.


git-svn-id: file:///svnroot/mailfromd/branches/release_4_3_patches@1630 7a8a7f39-df28-0410-adc6-e0d955640f24

1 files changed, 61 insertions, 1 deletions

diff --git a/NEWS b/NEWS
index 25ba9d4d..09dbea34 100644
--- a/NEWS
+++ b/NEWS
@@ -1,2 +1,2 @@
-Mailfromd NEWS -- history of user-visible changes. 2008-03-09
+Mailfromd NEWS -- history of user-visible changes. 2008-03-10
 Copyright (C) 2005, 2006, 2007, 2008 Sergey Poznyakoff
@@ -9,2 +9,62 @@ Version 4.3.90 (SVN)
 
+* The --domain option is withdrawn.
+
+This option was declared as deprecated in version 4.0.  Now it is
+withdrawn and its short version (-D) is reused for another purpose
+(see -D option, below).
+
+* New command line options -D and -U
+
+Both options work like their m4 counterpars: the `-D' command line
+option defines a preprocessor symbol, the `-U' option undefines it.
+
+* Constant vs. variable shadowing
+
+In previous versions of mailfromd name clashes between constants and
+variables went unnoticed, which sometimes lead to hard-to-diagnose
+errors.  This bug is fixed in this version.  If a constant is defined
+which has the same name as a previously defined variable (the constant
+"shadows" the variable), the compiler prints the following diagnostic
+message: 
+
+<file>:<line>: Warning: Constant name `name' clashes with a variable name
+<file>:<line>: Warning: This is the location of the previous definition
+
+A similar diagnostics is issued if a variable is defined whose name
+coincides with a previously defined constant (the variable "shadows"
+the constant).
+
+In any case, the %NAME notation refers to the last defined symbol, be
+it variable or constant.
+
+If a variable shadows a constant, the scope of the shadowing depends
+on the storage class of the variable.  For automatic variables and
+function parameters, it ends with the final `done' closing the
+function.  For global variables, it lasts up to the end of input.
+
+* Exception names.
+
+To minimize chances of name clashes, all symbolic exception codes has
+been renamed by prefixing them with the `e_', thus, e.g. `divzero'
+became `e_divzero', etc.  The `ioerr' exception code is renamed to
+`e_io'.
+
+For consistency, the following most often used codes are available without
+the `e_' previx: success, not_found, failure, temp_failure.
+
+The use of old exception codes is still possible by defining a
+preprocessor symbol OLD_EXCEPTION_CODES, for example:
+
+  mailfromd -DOLD_EXCEPTION_CODES
+
+* match_dnsbl and match_rhsbl
+
+Both functions malfunctioned in versions from 4.0 up to 4.3.1 due to a
+name clash between the exception code `range' and their third
+argument.  This is fixed.
+
+Additionally, previous versions of match_dnsbl silently ignored
+invalid first argument.  Now, the e_invip exception is signalled in
+this case.
+