[asterisk-bugs] [Asterisk 0016557]: [patch] Asterisk produces malformed email files for voicemail

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16557 
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Reported By:                jcovert
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16557
Category:                   Applications/app_voicemail
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.6.0.20 
JIRA:                       SWP-954 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-01-06 09:29 CST
Last Modified:              2010-03-08 14:39 CST
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Summary:                    [patch] Asterisk produces malformed email files for
voicemail
Description: 
Asterisk is inserting an extra <cr> into the voicemail attachment.  This
causes some mail relays to fail to forward the SMTP message.

While the correct line termination in an SMTP message IS <cr><lf>, the
conversion from the Unix <lf> line terminator to <cr><lf> is handled by
sendmail.  When sendmail gets a file which (mostly) has just <lf>
terminators up until the attachment, it sees the <cr><lf> in the attachment
portion and converts that to <cr><cr><lf>.  This confuses some mail relays
down the road and prevents delivery.

This is a problem in all versions, and the fix is trivial:

At line 418 of the current head, there appears

#define eol "\r\n" 

this should just be "\n"

The resulting SMTP message will still have <cr><lf> once it has been
processed by the sendmail command.

"eol" is used ONLY in "ochar" which is used only in "base_encode".

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 (0119159) ebroad (manager) - 2010-03-08 14:39
 https://issues.asterisk.org/view.php?id=16557#c119159 
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For the most part yes, the idea being if we use \n for the message headers
and the body(see app_voicemail.c, around line 4220 or so) then we should
use \n when MIME encoding the attached voice message as well. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-03-08 14:39 ebroad         Note Added: 0119159                          
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