7   7  7   7
                                  77 77  77 77
                                  7 7 7  7 7 7
                                  7   7  7   7
                                  7   7  7   7


                   7   7   7 77777 777 7777   777  7   7 7777
                  7 7  77  7   7    7  7   7 7   7 77 77 7   7
                 77777 7 7 7   7    7  7777  7   7 7 7 7 7777
                 7   7 7  77   7    7  7   7 7   7 7   7 7   7
                 7   7 7   7   7   777 7777   777  7   7 7777


                           7   7   77        7   77
                           7   7  7  7      77  7  7
                           7   7  7  7     7 7  7  7
                            7 7   7  7       7  7  7
                             7     77   7    7   77




                           (C)  1996  Kent B. Hansen



This is an ARexx-script for MailManager by Pino Aliberti.

MM_AntiBomb checks the incoming mail-packets against the configured archivers.
In case the packet is compressed with a known archiver, it compares the
physical size of the packet with the size the packet would have if it was
uncompressed.

This compress-ratio is compared with a user configurable maximum ratio, if the
compress-ratio of the checked packet exceeds this maximum, the packet is moved
to the bad-directory, and a "BOMB_" is added in front of the packet-name.

This way you can avoid filling your harddisk and crashing your system, if you
receive a mailbomb.

(A mailbomb is an archive, that isn't very big in size, but when uncompressed
it will fill up to an unlimited number of megaytes!  If your mailer tries to
uncompress such an archive, it will eventually fill your harddisk, and your
system will hang with the "device full - retry/cancel" requester.) :-(



                             History of MM_AntiBomb
                             ----------------------


 0.10  (04.05.96)  Initial version



                                   --O--

Yours,
 Kent Hansen  (kbhimada.ou.dk)
 Team AMIGA    Sysop TPV

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                   78      80  97.5% -lh5- e703 May  4  1996 File_ID.diz
[generic]                 1150    2300  50.0% -lh5- 2128 May  4  1996 MM.info
[generic]                 1150    2300  50.0% -lh5- 2128 May  4  1996 MM/Config.info
[generic]                  378     619  61.1% -lh5- 760e May  4  1996 MM/Config/MM_AntiBomb.CFG
[generic]                 1150    2300  50.0% -lh5- 2128 May  4  1996 MM/Docs.info
[generic]                   79     145  54.5% -lh5- 8400 May  4  1996 MM/Docs/History.Txt
[generic]                 3001    7585  39.6% -lh5- 4a8c May  4  1996 MM/Docs/MM_AntiBomb.Doc
[generic]                 1150    2300  50.0% -lh5- 2128 May  4  1996 MM/Rexx.info
[generic]                 2881    7520  38.3% -lh5- 3a92 May  4  1996 MM/Rexx/MM_AntiBomb
[generic]                 2489    7433  33.5% -lh5- 36d8 May  4  1996 MM/Rexx/MM_AntiBomb.rexx
[generic]                 2411    7049  34.2% -lh5- 6f2d May  4  1996 MM/Rexx/MM_AntiBomb.rexx.cmp
[generic]                  865    2273  38.1% -lh5- 9f10 May  5  1996 MM_AntiBomb.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        12 files   16782   41904  40.0%            May  6  1996