It seems that messages with no body cause a segfault in dbmail-imapd when
retrieving mail with fetchmail. A section of the log is below:
Nov 29 11:42:22 mag dbmail/imap4[98425]: COMMAND: [A0007 FETCH 1
BODY.PEEK[TEXT]]
Nov 29 11:42:22 mag dbmail/imap4[98425]: arg[0]: '1'
Nov 29 11:42:22 mag dbmail/imap4[98425]: arg[1]: 'BODY.PEEK'
Nov 29 11:42:22 mag dbmail/imap4[98425]: arg[2]: '['
Nov 29 11:42:22 mag dbmail/imap4[98425]: arg[3]: 'TEXT'
Nov 29 11:42:22 mag dbmail/imap4[98425]: arg[4]: ']'
Nov 29 11:42:22 mag dbmail/imap4[98425]: imap_process(): Executing command
fetch...
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_query(): executing query
[SELECT permission,seen_flag,answered_flag,deleted_flag,flagged
_flag,recent_flag,draft_flag FROM mailboxes WHERE mailbox_idnr = 1172::bigint]
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_query(): executing query
[SELECT message_idnr, seen_flag, recent_flag FROM messages WHER
E mailbox_idnr = 1172::bigint AND status<2 AND unique_id!='' ORDER BY
message_idnr ASC]
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_query(): executing query
[SELECT message_idnr FROM messages WHERE unique_id!='' ORDER BY
message_idnr DESC LIMIT 1]
Nov 29 11:42:22 mag dbmail/imap4[98425]: next_fetch_item(): args[idx = 4] =
] (returning 5)
Nov 29 11:42:22 mag dbmail/imap4[98425]: Fetching msgID 474842 (fetch num 1)^M
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_query(): executing query
[SELECT messageblk FROM messageblks WHERE message_idnr = 474842
::bigint ORDER BY messageblk_idnr]
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_start_msg(): starting,
stopbound: '(null)'
Nov 29 11:42:22 mag dbmail/imap4[98425]: mime_readheader(): entering mime loop
Nov 29 11:42:22 mag dbmail/imap4[98425]: mime_readheader(): found double
newline; header size: 21 lines
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_start_msg(): found singlepart msg
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_start_msg(): exit
Nov 29 11:42:22 mag dbmail/imap4[98425]: Dumping range:
(1::bigint,0::bigint) - (1::bigint,0::bigint)
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_query(): executing query
[SELECT messageblk FROM messageblks WHERE message_idnr = 474842
::bigint ORDER BY messageblk_idnr]
Nov 29 11:42:22 mag dbmail/imap4[98425]: db_dump_range(): bad range specified
Nov 29 11:42:22 mag dbmail/imap4[98425]: Received SIGBUS
The reason for the message 'bad range specified' is that the message has no
body block, so that the test:
if (start.block >= PQntuples(res))
in dbmsgbufpgsql.c fails.
This returns -1 to the length in imapcommands.c, which is not checked as
far as I can tell. As a result it sends "-1" formatted as an unsigned long
long as the message length, and dies when it tries to read the buffer.
Any help (or patches!) would be greatly appreciated. Perhaps this is a
problem with the storage system, or even the mail that allows empty bodies.
----------------------------------------------------------------
Philip Warner | __---_____
Albatross Consulting Pty. Ltd. |----/ - \
(A.B.N. 75 008 659 498) | /(@) ______---_
Tel: (+61) 0500 83 82 81 | _________ \
Fax: (+61) 03 5330 3172 | ___________ |
Http://www.rhyme.com.au | / \|
| --________--
PGP key available upon request, | /
and from pgp5.ai.mit.edu:11371 |/
