ChangeLog

27/01/2024 version 1.4.3 Roberto Puzzanghera
        - fixed several compilation warnings
        - fixed several autotools warnings

06/12/2023 Roberto Puzzanghera
        - added jms "debug" patch, to improve the debugging of simscan on
          qmail-smtpd log;
        - bug fix by Bob Greco where a received message with multiple
          'local' recipients executes spamc as null user and not as the
          user extracted from the first local recipient.
        - added Roberto Puzzanghera's attachments-size-limit patch, which allows
          you to overcome a limitation where simscan doesn't pass messages
          over 250k to spamassassin. This patch let the administrator set
          the attachments' size limit in bytes by setting the
          qmail/control/simsizelimit file. Furthermore, events where simscan
          is not activated are now logged at smtpd level (it was logged
          only when debug is active).

01/23/2014 Johannes Weberhofer
        - Removed empty INSTALL file, added .gitattributes
        - renamed configure.in and fixed it to work with newer automake

01/22/2014 Johannes Weberhofer
        - Fixed issue in combination with a ripmime-problem as described
          in http://permalink.gmane.org/gmane.mail.qmail.simscan/3880
          (Thanks to Gustavo Castro)

30/05/2013 Johannes Weberhofer
         - Added GPL license version 2.0
         - Made several changes to allow building on with strict compiler 
           settings
         - Removed .cvsignore file and added .gitignore file
         - Do no longer check for existing clamav-database when set via 
           --enable-clamavdb-path
         - added missing permissions S_IRUSR | S_IWUSR to open()

12/12/09 Jason Frisvold
         - Make simscan aware of clamav cld files (Thanks Bob Maple)
         - Fix ripmime working directory (Thanks Gladiston Justini)

03/21/08 Jason Frisvold
         - Fix --enable-dpsam-args (Thanks Jean-Daniel Bonnetot)
         - Prevent double virus scanning (Thanks Gerard Earley)
         - Fix retrieval of SpamHits and ReqHits (Thanks anonymous)
         - Add SpamAssassin's ReqHits to log line (Thanks anonymous)
         - Add SPAM PASS log line (Thanks anonymous)

11/12/07 Jason Frisvold
         - Improvement patch (Tom Collins)
         - - Clamdscan scans the message file instead of the message file and
         -   attachment
         - - Don't pass messages over 250k to spamassassin
         - - Spam scanning before virus scanning
         - - Lowercase FROM and TO addresses
         - - write spam_fd before calling is_spam()
         - - fix str_rstr() call to require complete match

10/30/07 Jason Frisvold
         - simscan directory umask fix (John Simpson)
         - band-aid simscanmk NFS timing issue on solaris - Tom Collins
         - strsep bug in Solaris - Tom Collins
         - set exit code on errors - Jeremy Kister
         - fix compile warning issues with long versus int - Jeremy Kister
         - add pid to debug messages - Jeremy Kister
         - RFC2822 Received field compliance - Tullio Andreatta

10/29/07 Jason Frisvold
         - Support daily and main .inc and .cvd files (John Simpson)
         - Fixed a few compiler warnings (Jason Frisvold)
         - simcontrol lookups should be lowercase (Jason Frisvold)
         - lowercase all strings in the simcontrol.cdb file (Jason Frisvold)

10/29/07 Ken Jones
         - release version 1.4.0 with p0f code moved to qmail-smtpd

03/11/07 Ken Jones
         - for dspam only authorized users can send email to spam@ and nospam@,
           includes support for custom smtp error message

05/18/06 George Breahna
         - first version of DSPAM support

         R
         - add u_char casting to isupper and tolower

01/07/06 Ken Jones
         - envoke ripmime with --disable-qmail-bounce

01/07/06 Ken Jones
         - reject blank envelopes with proper error

10/05/05 Ken Jones
         - found an IsSpam=1.0 instead of IsSpam==1
            for the spam passthru setting

10/04/05 Ken Jones
         - virus drop message was not exiting at the right time.
             Found by Russ Lists
         - use per domain hit count on spam log message if set.
         - if read from standard in fails the temp file was not
             closed so the temporary work directory would not
             be removed. 

09/30/05 Ken Jones
         - put 's' at the end of processing time and
            move to after status.
         - add RELAYCLIENT log line. suggested by Sim
         - replace --with-pcre with two new ones
            --with-pcre-lib --with-pcre-include
         - update configure regex section to report the
            two new --with-pcre lines
         - A value of 5 was being checked instead of
            the SPAM_HITS value. Found by Jeremy Kister.
         - Change SpamHits > to SpamHits >=
           

09/28/05 Ken Jones
         - update logging documentation on qmailwiki.org
         - add VIRUS DROPPED logging message
         - clearer --enable-spam-auth-user config message
         - put #ifdef ENABLE_SPAM around the spam processing
            section in per_domain_lookup() function 
            Reported by Gerad Earley
         - Change received header printf to %d for compiler warnings
         - add SPAM DROPPED log message
         - add processing time field to logging
         - add spam score and required hits to logging

09/27/05 Ken Jones
         - New global IsSpam flag
         - rewrite is_spam() to assume one line per invocation
         - rewrite check_spam() to use FILE and fgets to call
             is_spam with one line per invocation
         - Use IsSpam flag instead of over loaded SpamHits=1.0
             to determine if email is spam. This also returns
             a valid spam hit count in custom smtp error message
         - move definition of qmail_queue outside per domain ifdef
         - new configure option --enable-spam-auth-user default to
           not scan authenticated users with spamassasin
         - update copyright year
         - add standarized reporting line for attachment and regex
            rejects

09/27/05 Bruno Negrao
         - in per domain processing an attachment list should override
           the global attachment list 

02/08/05 Tom Collins
         - simscan.c do not spam scan for RELAYCLIENT users
         - complier warnings for getpid(),getppid()

02/06/05 Itamar Reis Peixoto
         - rc.spamd sample init script change to remove clamd with spamd
         - rc.qmail same change to this init script sample

02/02/05 Ken Jones
         - 1.1 release 

01/26/05 Alex Pleiner   
         - clean up for addr parse bug and per domain pass through debug

01/21/05 Flavio Curti
         - spam passthru change in how it returns a value

         Daniel Maglione
		 - spam passthru log changes
        

11/30/04 Ken Jones / Tren Blackburn
         - add --enable-controldir option for over riding the default 
         location for simscan control files. Default: /var/qmail/control

11/24/05 Daniel Maglione
         - change logging message for per domain spam pass thru 

11/24/04 Ken Jones
         - strsep code if system does not support strsep: solaris
         - change int fd to static int fd in main for warning
         - change %d to %ld for getpid value warning
         - set HAS_ULIMIT_NPROC on all systems except solaris
         - ifdef around ulimit setting 

11/22/04 Daniel Maglione
         - support for spam passthru in per domain code

11/20/04 Flavio Curti
         - support for regex matching on per domain basis
           --enable-regex
           --with-pcre=/prefix/of/pcre
         - change strtok to strsep

11/17/04 Ken Jones
         - clamav does not enable ripmime by default
         - clean up configure option report
         - attempt to auto detect spamassassin path with received header
           and spam processsing enabled

11/17/04 Flavio Curti / Ken Jones
         - add /usr/bin/sigtool and /var/lib/clamav to auto detect paths
           for received header processing

11/16/04 Ken Jones
         - configure attempts to auto detect where clamavdb and sigtool are
         - add -v version switch to simscan

11/15/04 Ken Jones
         - re-do rcpt to handling for unlimited rcpt to's. 

11/10/04 Ken Jones
         - attachment checking should be case insensitive
         - do not check . and .. directory entries on attachments
         - "single character".exe would not match .exe attachment 

11/09/04 Flavio Curti / Ken Jones
         - with per domain, disable spam/clam/trophie by default

11/08/04 Ken Jones
         - changed while loop to for loop and boundary check on
           processing RcptTo array. 

11/08/04 Jason Frisvold / Niek
         - fix drop message code when not enabled

11/05/04 Daniel Maglione
         - set system fork limits high to overcome fork process limits on
           heavily loaded systems
         - new --enable-quarantinedir=DIR option to allow for quarantine
           of messages for later processing
         - new -enable-dropmsg option to accept email and silently drop
           viruses and spam emails.

11/04/04 Dmitriy MiksIr / Ken Jones
         - allow disabling ripmime in configure script --disable-ripmime
           even if virus scanning is selected
         - allow disabling ripmime in simscan based on configure script
         - Makefile: set mode on simscan binary after setting ownership

10/30/04 Flavio Curti 
         - fixes the version grabber with spamassassin 3.0

10/29/04 Ken Jones
         - Update README on how to list attachments

10/28/04 Flavio Curti
         - simscanmk has new -g option to build the version database
           for the new received header option
         - if you enable per domain and use attach= and have other options after
           attach= those would have been ignored, this is fixed.
         - log format update, no more spaces between the different
           rcpts, and if received is enabled the run-time gets added as well at
           the end (time: )
         - the way the injection into qmail-queue works has changed. in any
           case. it does work the same way as before.
         - optionally add a received header with version information
           --enable-received=y|n
           Simscan adds a Received line, showing the runtime, and a version 
           string of the scanners that checked the message:
           Received: by simscan 1.0.6 ppid: 25399, pid: 25400, t: 4.7007s
            scanners: attach: 1.0.6 clamav: 0.80/m:27/d:556 
            trophie: 7.000-1011/218/74141 spam: 2.63
         - new options for --enable-received option 
            --enable-spamassassin-path=PATH Path to the spamassassin binary
            --enable-clamavdb-path=PATH     Directory where the clamav 
               master.cvd and daily.cvd files are saved
            --enable-sigtool-path=PATH      Path to the sigtool binary
            --enable-trophie-path=PATH (if trophie is used)
           These are used to build the version database information
         - configure.in needs to use ENABLE_SPAMC_ARGS on info line

10/28/04 Ken Jones
         - Makefile.am simscanmk.o needed to depend on config.h
         - have ENABLE_SPAM 1 instead of just ENABLE_SPAM
         - have ENABLE_TROPHIE 1 instead of just ENABLE_TROPHIE

10/27/04 Kiril Todorov / Ken Jones
         - fix configure.in syntax error on --enable-spamc-args
         - configure --help should show --enable-spam-passthru

10/27/04 Niek / Ken Jones
         - remove un-needed "./" clamdscan argument

10/26/04 Eduardo M. Bragatto / Ken Jones
         - Do not use per user spamc option if more than one
           receipient.

10/26/04 Jason Frisvold
         - more comprehensive readme documentation

10/23/04 Ken Jones / Jason Frisvold
         - added --enable-spamc-args to set spamc args during configure
           instead of having to edit simscan.c
         - added --enable-spamc-user to set the -u user@domain option
           to spamc

10/22/04 Ken Jones
         - added --enable-spam-passthru feature to allow email to run
           through spamassassin and then passed through to the user
         - fix another line in spam header parsing code from 10/21/04

10/21/04 Jason Frisvold / Ken Jones
         - support for spamassassin 3 default setup use "score=" instead
           of "hits="
         - do not die if either one of the above is not found. Added 
           debug statement when not found.

10/21/04 Jason Frisvold
         - add support for spam hit count in simcontrol file, for example:
           :spam=yes,clam=yes,spam_hits=32.5
         - a bunch of additional debugging printouts

10/19/04 Flavio Curti / Ken Jones
         - call ripmime if either attachment blocking or clamav is enabled
         - modifications to configure.in to support the above

10/17/04 Flavio Curti 
         - Trophie can be enabled/disabled in the per_domain_file (trophie=)
         - attachments can be handled by the per_domain_file
           attach=listof files separated by colons
         - per_domain checks now sender and all reciepients
         - per_domain handles now qmail extensions, 
           read the README on how it works
         - debug messages so they get only displayed with a debuglevel > 1

10/16/04 Flavio Curti
         - support for trophie http://www.vanja.com/tools/ 
           an interface to Trend Micro virus scanner 
         - when SIMSCAN_DEBUG is set do not delete the work files 

10/16/05 Ken Jones
         - Allow group access to work directories so clamd can
           access the work directories when clamd runs as clamav user
           and added to simscan group

10/14/05 Ken Jones
         - update reject message code to support file descriptor 4 in
           the new qmail-queue-custom-error.patch version
         - attachment reads /var/qmail/control/ssattach file now
         - custom reject message for bad attachments
         - log attachment rejections
         - new RcptTo/MailFrom parsing code. The old stuff was broken.
         - hardcoded /var/qmail paths now use QMAILDIR 

10/13/04 Ken Jones / Jeremy Kitchen
         - use SIMSCAN_DEBUG environment variable to enable error logging
         - debug output now goes to stderr for logging 
         - Makefile.am: simscan.o needs to depend on config.h
         - new --enable-custom-smtp-reject option to return an smtp reject
           message with the virus name detected. Requires the contrib
           directory  qmail-queue-custom-error.patch patch to be applied 
           to the qmail source.

10/12/04 Ken Jones 
         - new log output format includes ip, virus name, to/from addresses
         - read clamdscan's output to get virus name
         - parse to/from addresses into global variable
        
10/08/04 Jeremy Kitchen
	 - removed extra paren in an if statement that would cause
	   compilation failures if debugging was enabled.  tx Al Battrick

10/05/04 Version 1.0.5 (devel)
         Jeremy Kitchen
	 - fixed bug in Makefile.am, thanks Bastiaan van der Put.
	 - fixed clamdscan exit code handling.  *smacks Ken* :)
	 - changed check_scan to not close fd 1 and 2
         - changed installation a little more.
	 - switching to CVS tree to make life easier.

10/04/04 Version 1.0.4 (devel)
         Jeremy Kitchen
         - changed Makefile.am to set proper permissions on simscan binary
         - changed configure.in to better test for the simscan user
         - added support for command line changing of simscan user 
           --enable-user=<user>
         - changed Makefile.am to set the mode on the working directory to 700


09/14/04 Version 1.0.4 (devel)
         Ken Jones / Jeremy Kitchen
         - print to stderr when virus detected with IP address

         Suggested by Rick Macdougall coded by Ken Jones
         - make unique file names for the message, to/from headers and the
           optional spamassassin output. These files get unlinked before
           exec'ing the --enable-qmail-queue=PATH program. Configure defaults
           this value to the real qmail-queue program. 
               data          file name
             ____________   _______________
             message fd 0 = msg.X.Y.Z          where X = unix seconds
             to/from fd 1 = addr.X.Y.Z               Y = microseconds
             spamassassin = spamc.msg.X.Y.Z          Z = simscan process id
            fd 0 and fd 1 normally come from the qmail smtp daemon.

            Simcan can optionally be turned on or off for different 
            incoming IP ranges using the standard tcp.smtp.cdb file 
            used by tcpserver/qmail-smtpd with the -x option.

         - spam-hits was checking only greater than the reported hits. 
           It should check for greater than or equal to.

         Ken Jones
         - updated INSTALL, README and ChangeLog documentation.

         - fstat works on pipes, so switched per-domain code to allocate
           memory for the envelope with one read and one write instead of
           a read/write per character of the envelope.

 
09/13/04 Version 1.0.3 (devel)
         Ken Jones
         - The --enable-spam option now checks for an X-Spam-Flag: YES header.
           If found it returns a permenent refusal to accept message. The error
           code translates to an SMTP 500 series message refusal.

         - The --enable-spam-hits=hit_number option combinded with the 
           --enable-spam option the perment refusal is based on the calculated
           hit: value in the X-Spam-Status: header. This option allows a
           system administrator to refuse email that has a fairly high 
           hit count from spamassassin, like 10. Email that passes through
           can then be scanned again with a users personal perferences.

09/11/04 Version 1.0.2 (devel)
         Ken Jones
         - Enable clamav or spamassassin per domain
         - new simscanmk program to build clamav or spamasassing enable lists

07/20/04 Version 1.0 (production)
         Ken Jones
         - First production version