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Annotation of pgp/contrib/misc/pgpnohdr.sh, revision 1.1

1.1     ! root        1: Subject: Re: PGP with mail/news
        !             2: Date: Fri, 8 Jan 1993 05:14:09 GMT
        !             3: From: [email protected] (Rob Stampfli)
        !             4: Lines: 50
        !             5: 
        !             6: >}one feature i discovered that would be nice to have in PGP: a switch
        !             7: >}that tells it to sign only the body of a message, instead of the whole
        !             8: >}thing.
        !             9: 
        !            10: This is really very easy to accomplish external to pgp.  Here is an example
        !            11: of a shell script that sits between the mailer program and /bin/mail, which
        !            12: does exactly what you want.  It was written before the implemenation of
        !            13: +clearsig, but it should work just fine with it.
        !            14: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
        !            15: # This script is invoked by adding the line "set sendmail=pgpmail" to your
        !            16: # .mailrc file.  mailx then invokes pgpmail instead of /bin/mail to deliver
        !            17: # email.  This script checks whether outbound encryption is specified, and
        !            18: # automatically performs it as required.
        !            19: 
        !            20: trap "" 1 2 3                          # req'd since this can run in bg
        !            21: exec 2>/dev/tty                                # can be "exec 2>/dev/null"
        !            22: 
        !            23: nl="" en="" sg=""
        !            24: for i                                  # for each argument...
        !            25: do
        !            26:   case "$i" in                         # look for encryption specifier...
        !            27: #  *encrypt=*) en="`sed 's/.*=//'`"    # this line req'd if SHELL=sh
        !            28:   *encrypt=*)  en="${i#*=}";;          # this line is faster if SHELL=ksh
        !            29:   *sig=*)      sg="${i#*=}";;          # a pgp signature specification...
        !            30:   *)           nl="$nl $i";;           # a real mail address...
        !            31:   esac
        !            32: done
        !            33: 
        !            34: [ X = "X$en" ] && exec /bin/rmail "$@" # encryption was not requested
        !            35: 
        !            36: (                                      # encryption *was* specified
        !            37:        OIFS="$IFS"                     # needed to preserve tabs in header
        !            38:        IFS='
        !            39: '
        !            40:        while read x                    # read and process header intact
        !            41:        do
        !            42:        print - "$x"
        !            43:        [ "" = "$x" ] && break
        !            44:        done
        !            45:        IFS="$OIFS"                     # reset field separators
        !            46:        if [ X = "X$sg" ]; then         # no signature specified:
        !            47:          pgp -feat "$en"               #   feed the rest to encryption pgm
        !            48:        else                            # a signature was specified:
        !            49:          pgp -feast "$en" -u "$sg"     #   feed pgp...
        !            50:        fi
        !            51:        echo "Encryption phase completed" 1>&2
        !            52: ) | /bin/rmail $nl
        !            53: -- 
        !            54: Rob Stampfli  [email protected]      The neat thing about standards:
        !            55: 614-864-9377  HAM RADIO: [email protected]  There are so many to choose from.
        !            56: 

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