Handle possible NULL returns from crypt(3).
Revised the included MD5 routines to help the compiler detect a common subexpression between steps in round 3.
Switched to heavily cut-down BSD license.
A couple of optimizations specific to x86-64 have been applied to the included MD5 routines.
Use sysconf(_SC_CLK_TCK) instead of CLK_TCK when _SC_CLK_TCK is known to be available or CLK_TCK is not. This is needed for portability to glibc 2.3.90+ and possibly to other recent and future systems.
Use socklen_t where appropriate.
Corrected the source code to not break C strict aliasing rules (this only affected auth_pam.c).
With Sun PAM (Solaris, HP-UX), insist on only one PAM message per call to the conversation function because of differences in the layout of the "msg" parameter.
Bumped the default limits to values that are way too high for most systems (I'm sure these will still be insufficient for some, though, but hopefully those systems actually got experienced sysadmins). Added comments suggesting that these defaults be decreased on particular installs.
Bugfix: actually zeroize the context structure in MD5_Final(). Thanks to Andrey Panin and Timo Sirainen for bringing this to my attention. This change makes no difference for popa3d, but may be important for possible other applications which might use these MD5 routines.
The uses of sprintf(3) have been replaced by the concat() function implemented locally.
libpam_userpass support (with pam_userpass 0.9+).
Rate-limit the "sessions limit reached" log message similarly to the per-source one; spotted by Michael Tokarev.
Started maintaining this change log (including information on a few past versions), due to popular demand. Added a separate file with contact information (homepage, mailing list, author e-mail address, commercial support). Updated the installation instructions to note the importance of authentication and locking method choice, added instructions on the use of xinetd and popa3d's standalone mode.
Ensure proper logging of abnormally terminated sessions: distinguish server failures from external modification to the mailbox by other instances of popa3d or other MUAs. Previously, if external mailbox modification would occur during processing of a RETR command, popa3d could improperly log a "server failure" (0.6) or even a "premature disconnect" (older versions).
Added version.c and the -V option to print out version information.
Corrected the message size reporting bug introduced with 0.4.9.3 and now reported on popa3d-users by Nuno Teixeira. The only known POP3 client known to complain about this is fetchmail, and it would get the mail correctly anyway.
Correctness and interoperability fixes. This includes a workaround for an Outlook Express client bug which would show up on body-less messages.
Re-worked all of the UIDL calculation, adding support for multi-line headers and re-considering which headers to use.
Let the local delivery agent help generate unique IDs by setting the X-Delivery-ID: header.
Added PAM support (old-fashioned or via Linux-PAM binary prompts), choice for fcntl(2) and/or flock(2) locking, qmail-style ~/Mailbox support, improved logging, optional libwrap support, virtual domain support hooks.
Parts of the daemon code are now run in a chroot jail (/var/empty).
The inetd vs. standalone mode setting is now run-time configurable.
The GNU MD5 routines have been replaced with own public domain implementation to relax the license for the entire package (now BSD and (L)GPL-compatible), solve certain portability issues, and reduce code size.
Added a popa3d(8) manual page based on the one Camiel Dobbelaar wrote for OpenBSD.
$Owl: Owl/packages/popa3d/popa3d/CHANGES,v 1.12 2012/08/15 09:29:17 solar Exp $
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