Package: procmail
Version: 3.22-16
Severity: normal
hi,
I was puzzled by some RE failure on a constant part of msgs sent by a script.
Eg. the recipe has the following RE
* ^Subject: .+ word1 word2
of course I'm sure sent msgs always have subject ending with 'word1 word2' -
that's wired into the script.
Turned out that RE fails whenever the '.+' part is long enough that mailer/
MTA folds the header, so msg is received like
!Subject: blah blah blah word1
! word2
but procmail fails to properly unfold the header, the recipe's RE would see
"Subject: blah blah blah word1 word2"
^
note the extra LWSP. According to rfc822,
"... Unfolding is accomplished by regarding CRLF immediately
followed by a LWSP-char as equivalent to the LWSP-char."
which of course makes sense, otherwise no RE with [ \t] would be reliable -
ie 'word1 word2\tword3' should be written instead as
'word1[ \t]+word2[ \t]+word3'.
thanks
--
paolo
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
