add required headers for smtpd.h and remove unnecessary ones in other files.

ok jung@

replaces calls to err(3)/errx(3) with fatal()/fatalx() from log.c
for code that runs in the daemon.

ok florian@ millert@

Delete unnecessary <libgen.h> #includes

ok deraadt@

kill corrupt / uncorrupt queue mechanism as it has never been usable and it
will be made irrelevant when the new config comes up soon

ok eric@

use <limits.h> comprehensively. For now try to push <> includes to
each .c file, and out of the .h files. To avoid overinclude.
ok gilles, in principle. If this has been done right, -portable should
become easier to maintain.

various queue improvements:

- add a "close" hook to the backend API.
- improve the sync() pattern in queue_fs: only sync at commit
time and not for every envelope creation
- various fixes to the experimental external queue API.

Assorted queue improvements:
- cleanup the internal queue backend API and get rid of the QOP_* thing.
- implement a queue_proc backend
- rename queue_fsqueue.c to queue_fs
- enable support for queue encryption
- add an envelope cache
- better logging and error reporting

Get rid of env->sc_pw and env->sc_pwqueue. Early queue initialization
now happens in queue_init(), and backends take the queue passwd as
parameter in their init function.

Remove useless SMTPD_FILTER_USER while there.

sync with OpenSMTPD 5.3.2

ok gilles@

assorted fixes spotted by Coverity.
some log message updates.

ok gilles@

Sync with our smtpd repo:

* first bricks of ldap and sqlite support (not finished but both working)
* new table API to replace map API, all lookups are done through tables
* improved handling of temporary errors throughout the daemon
* improved scheduler and mta logic: connection reuse, optimizes batches
* improved queue: more tolerant to admin errors, new layout, less disk-IO
* improved memory usage under high load
* SSL certs/keys isolated to lookup process to avoid facing network
* VIRTUAL support improved, fully virtual setups possible now
* runtime tracing of processes through smtpctl trace
* ssl_privsep.c sync-ed with relayd
* ssl.c no longer contains smtpd specific interfaces
* smtpd-specific ssl bits moved to ssl_smtpd.c
* update mail address in copyright

FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE.

smtpd.conf(5) simplified, it will require adaptations

ok eric@

replaces calls to err(3)/errx(3) with fatal()/fatalx() from log.c
for code that runs in the daemon.

ok florian@ millert@

Delete unnecessary <libgen.h> #includes

ok deraadt@

kill corrupt / uncorrupt queue mechanism as it has never been usable and it
will be made irrelevant when the new config comes up soon

ok eric@

use <limits.h> comprehensively. For now try to push <> includes to
each .c file, and out of the .h files. To avoid overinclude.
ok gilles, in principle. If this has been done right, -portable should
become easier to maintain.

various queue improvements:

- add a "close" hook to the backend API.
- improve the sync() pattern in queue_fs: only sync at commit
time and not for every envelope creation
- various fixes to the experimental external queue API.

Assorted queue improvements:
- cleanup the internal queue backend API and get rid of the QOP_* thing.
- implement a queue_proc backend
- rename queue_fsqueue.c to queue_fs
- enable support for queue encryption
- add an envelope cache
- better logging and error reporting

Get rid of env->sc_pw and env->sc_pwqueue. Early queue initialization
now happens in queue_init(), and backends take the queue passwd as
parameter in their init function.

Remove useless SMTPD_FILTER_USER while there.

sync with OpenSMTPD 5.3.2

ok gilles@

assorted fixes spotted by Coverity.
some log message updates.

ok gilles@

Sync with our smtpd repo:

* first bricks of ldap and sqlite support (not finished but both working)
* new table API to replace map API, all lookups are done through tables
* improved handling of temporary errors throughout the daemon
* improved scheduler and mta logic: connection reuse, optimizes batches
* improved queue: more tolerant to admin errors, new layout, less disk-IO
* improved memory usage under high load
* SSL certs/keys isolated to lookup process to avoid facing network
* VIRTUAL support improved, fully virtual setups possible now
* runtime tracing of processes through smtpctl trace
* ssl_privsep.c sync-ed with relayd
* ssl.c no longer contains smtpd specific interfaces
* smtpd-specific ssl bits moved to ssl_smtpd.c
* update mail address in copyright

FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE.

smtpd.conf(5) simplified, it will require adaptations

ok eric@

Delete unnecessary <libgen.h> #includes

ok deraadt@

kill corrupt / uncorrupt queue mechanism as it has never been usable and it
will be made irrelevant when the new config comes up soon

ok eric@

use <limits.h> comprehensively. For now try to push <> includes to
each .c file, and out of the .h files. To avoid overinclude.
ok gilles, in principle. If this has been done right, -portable should
become easier to maintain.

various queue improvements:

- add a "close" hook to the backend API.
- improve the sync() pattern in queue_fs: only sync at commit
time and not for every envelope creation
- various fixes to the experimental external queue API.

Assorted queue improvements:
- cleanup the internal queue backend API and get rid of the QOP_* thing.
- implement a queue_proc backend
- rename queue_fsqueue.c to queue_fs
- enable support for queue encryption
- add an envelope cache
- better logging and error reporting

Get rid of env->sc_pw and env->sc_pwqueue. Early queue initialization
now happens in queue_init(), and backends take the queue passwd as
parameter in their init function.

Remove useless SMTPD_FILTER_USER while there.

sync with OpenSMTPD 5.3.2

ok gilles@

assorted fixes spotted by Coverity.
some log message updates.

ok gilles@

Sync with our smtpd repo:

* first bricks of ldap and sqlite support (not finished but both working)
* new table API to replace map API, all lookups are done through tables
* improved handling of temporary errors throughout the daemon
* improved scheduler and mta logic: connection reuse, optimizes batches
* improved queue: more tolerant to admin errors, new layout, less disk-IO
* improved memory usage under high load
* SSL certs/keys isolated to lookup process to avoid facing network
* VIRTUAL support improved, fully virtual setups possible now
* runtime tracing of processes through smtpctl trace
* ssl_privsep.c sync-ed with relayd
* ssl.c no longer contains smtpd specific interfaces
* smtpd-specific ssl bits moved to ssl_smtpd.c
* update mail address in copyright

FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE.

smtpd.conf(5) simplified, it will require adaptations

ok eric@

kill corrupt / uncorrupt queue mechanism as it has never been usable and it
will be made irrelevant when the new config comes up soon

ok eric@

use <limits.h> comprehensively. For now try to push <> includes to
each .c file, and out of the .h files. To avoid overinclude.
ok gilles, in principle. If this has been done right, -portable should
become easier to maintain.

various queue improvements:

- add a "close" hook to the backend API.
- improve the sync() pattern in queue_fs: only sync at commit
time and not for every envelope creation
- various fixes to the experimental external queue API.

Assorted queue improvements:
- cleanup the internal queue backend API and get rid of the QOP_* thing.
- implement a queue_proc backend
- rename queue_fsqueue.c to queue_fs
- enable support for queue encryption
- add an envelope cache
- better logging and error reporting

Get rid of env->sc_pw and env->sc_pwqueue. Early queue initialization
now happens in queue_init(), and backends take the queue passwd as
parameter in their init function.

Remove useless SMTPD_FILTER_USER while there.

sync with OpenSMTPD 5.3.2

ok gilles@

assorted fixes spotted by Coverity.
some log message updates.

ok gilles@

Sync with our smtpd repo:

* first bricks of ldap and sqlite support (not finished but both working)
* new table API to replace map API, all lookups are done through tables
* improved handling of temporary errors throughout the daemon
* improved scheduler and mta logic: connection reuse, optimizes batches
* improved queue: more tolerant to admin errors, new layout, less disk-IO
* improved memory usage under high load
* SSL certs/keys isolated to lookup process to avoid facing network
* VIRTUAL support improved, fully virtual setups possible now
* runtime tracing of processes through smtpctl trace
* ssl_privsep.c sync-ed with relayd
* ssl.c no longer contains smtpd specific interfaces
* smtpd-specific ssl bits moved to ssl_smtpd.c
* update mail address in copyright

FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE.

smtpd.conf(5) simplified, it will require adaptations

ok eric@

use <limits.h> comprehensively. For now try to push <> includes to
each .c file, and out of the .h files. To avoid overinclude.
ok gilles, in principle. If this has been done right, -portable should
become easier to maintain.

various queue improvements:

- add a "close" hook to the backend API.
- improve the sync() pattern in queue_fs: only sync at commit
time and not for every envelope creation
- various fixes to the experimental external queue API.

Assorted queue improvements:
- cleanup the internal queue backend API and get rid of the QOP_* thing.
- implement a queue_proc backend
- rename queue_fsqueue.c to queue_fs
- enable support for queue encryption
- add an envelope cache
- better logging and error reporting

Get rid of env->sc_pw and env->sc_pwqueue. Early queue initialization
now happens in queue_init(), and backends take the queue passwd as
parameter in their init function.

Remove useless SMTPD_FILTER_USER while there.

sync with OpenSMTPD 5.3.2

ok gilles@

assorted fixes spotted by Coverity.
some log message updates.

ok gilles@

Sync with our smtpd repo:

* first bricks of ldap and sqlite support (not finished but both working)
* new table API to replace map API, all lookups are done through tables
* improved handling of temporary errors throughout the daemon
* improved scheduler and mta logic: connection reuse, optimizes batches
* improved queue: more tolerant to admin errors, new layout, less disk-IO
* improved memory usage under high load
* SSL certs/keys isolated to lookup process to avoid facing network
* VIRTUAL support improved, fully virtual setups possible now
* runtime tracing of processes through smtpctl trace
* ssl_privsep.c sync-ed with relayd
* ssl.c no longer contains smtpd specific interfaces
* smtpd-specific ssl bits moved to ssl_smtpd.c
* update mail address in copyright

FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE. FLUSH YOUR QUEUE.

smtpd.conf(5) simplified, it will require adaptations

ok eric@