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Diffstat (limited to 'usr.sbin/sendmail/KNOWNBUGS')
| -rw-r--r-- | usr.sbin/sendmail/KNOWNBUGS | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/usr.sbin/sendmail/KNOWNBUGS b/usr.sbin/sendmail/KNOWNBUGS deleted file mode 100644 index c334fa4..0000000 --- a/usr.sbin/sendmail/KNOWNBUGS +++ /dev/null @@ -1,107 +0,0 @@ - - - K N O W N B U G S I N S E N D M A I L - (for 8.8.6) - - -The following are bugs or deficiencies in sendmail that I am aware of -but which have not been fixed in the current release. You probably -want to get the most up to date version of this from ftp.sendmail.org -in /pub/sendmail/KNOWNBUGS. For descriptions of bugs that have been -fixed, see the file RELEASE_NOTES (in the root directory of the sendmail -distribution). - -This list is not guaranteed to be complete. - - -* Null bytes are not handled properly in headers. - - Sendmail should handle full binary data. As it stands, it handles - all values in the body, but only 0x01-0x80 and 0xA0-0xFF in - the header. Notably missing is 0x00, which would require a major - restructuring of the code -- for example, almost no C library support - could be used to handle strings. - -* Duplicate error messages. - - Sometimes identical, duplicate error messages can be generated. As - near as I can tell, this is rare and relatively innocuous. - -* $c (hop count) macro improperly set. - - The $c macro is supposed to contain the current hop count, for use - when calling a mailer. This macro is initialized too early, and - is always zero (or the value of the -c command line flag, if any). - This macro will probably be removed entirely in a future release; - I don't believe there are any mailers left that require it. - -* If you EXPN a list or user that has a program mailer, the output of - EXPN will include ``@local.host.name''. You can't actually mail to - this address. It's not clear what the right behaviour is in this - circumstance. - -* \231 considered harmful. - - Header addresses that have the \231 character (and possibly others - in the range \201 - \237) behave in odd and usually unexpected ways. - -* accept() problem on SVR4. - - Apparently, the sendmail daemon loop (doing accept()s on the network) - can get into a wierd state on SVR4; it starts logging ``SYSERR: - getrequests: accept: Protocol Error''. The workaround is to kill - and restart the sendmail daemon. We don't have an SVR4 system at - Berkeley that carries more than token mail load, so I can't validate - this. It is likely to be a glitch in the sockets emulation, since - "Protocol Error" is not possible error code with Berkeley TCP/IP. - - I've also had someone report the message ``sendmail: accept: - SIOCGPGRP failed errno 22'' on an SVR4 system. This message is - not in the sendmail source code, so I assume it is also a bug - in the sockets emulation. (Errno 22 is EINVAL "Invalid Argument" - on all the systems I have available, including Solaris 2.x.) - Apparently, this problem is due to linking -lc before -lsocket; - if you are having this problem, check your Makefile. - -* accept() problem on Linux. - - Apparently, the accept() in sendmail daemon loop can return ETIMEDOUT - and cause sendmail to sleep for 5 seconds during which time no new - connections will be accepted. An error is reported to syslog: - - Jun 9 17:14:12 hostname sendmail[207]: NOQUEUE: SYSERR(root): - getrequests: accept: Connection timed out - - "Connection timed out" is not documented as a valid return from - accept(2) and this is believed to be a bug in the Linux kernel. - -* Excessive mailing list nesting can run out of file descriptors. - - If you have a mailing list that includes lots of other mailing - lists, each of which has a separate owner, you can run out of - file descriptors. Each mailing list with a separate owner uses - one open file descriptor (prior to 8.6.6 it was three open - file descriptors per list). This is particularly egregious if - you have your connection cache set to be large. - -* Connection caching breaks if you pass the port number as an argument. - - If you have a definition such as: - - Mport, P=[IPC], F=kmDFMuX, S=11/31, R=21, - M=2100000, T=DNS/RFC822/SMTP, - A=IPC [127.0.0.1] $h - - (i.e., where $h is the port number instead of the host name) the - connection caching code will break because it won't notice that - two messages addressed to different ports should use different - connections. - -* ESMTP SIZE underestimates the size of a message - - Sendmail makes no allowance for headers that it adds, nor does it - account for the SMTP on-the-wire \r\n expansion. It probably doesn't - allow for 8->7 bit MIME conversions either. - - -(Version 8.25, last updated 6/13/97) |
