No need to declare optind, optarg or opterr; unistd.h does this for us.
From Jan Stary. OK deraadt@

After the socket is open, the remainder is just io operations.
Use pledge "stdio".

Prefer setvbuf() to setlinebuf() for portability; ok deraadt@

Allow syslogc -n XX to display less than the whole file, and -n XX -f to
display more/less than the default of 10. ok mpf@ jmc@

Make stdout line buffered.
# syslogc -f foobuf | grep bar
is now usable.
OK mikeb, djm, markus

sync synopsis and usage; documentation tweaks.

ok jmc@

sync usage() somewhat;

Support for continuous reading of syslog memory buffers.
Works like ``tail -f'' on a log file.
OK markus@, djm@

err()->errx() and KNF; ok djm@

zap unused header and #defines, mostly from stevesk@

kill redundant warning - getopt does it for us; from andrushock AT korovino.net

remove unused variables

add -o to usage() ok markus@

support new syslogd control protocol and add new -o option to detect memory
buffer overflow; idea & ok markus@

NB if you are using memory buffered logging make sure you update both syslogd
and syslogc _and_ restart syslogd because the protocol has changed

Sort getopt list and tidy error checks. From andrushock@korovino.net;
ok deraadt@

zero struct sockaddr_un before use, from andrushock AT korovino.net; ok deraadt@

remove redundant string termination; report from nimadeus@pandora.be

excessively detailed error messages are not unix

syslogc - client to read memory buffered logs from syslogd;
manpage nits jmc@, fixes jose@; ok deraadt@

After the socket is open, the remainder is just io operations.
Use pledge "stdio".

Prefer setvbuf() to setlinebuf() for portability; ok deraadt@

Allow syslogc -n XX to display less than the whole file, and -n XX -f to
display more/less than the default of 10. ok mpf@ jmc@

Make stdout line buffered.
# syslogc -f foobuf | grep bar
is now usable.
OK mikeb, djm, markus

sync synopsis and usage; documentation tweaks.

ok jmc@

sync usage() somewhat;

Support for continuous reading of syslog memory buffers.
Works like ``tail -f'' on a log file.
OK markus@, djm@

err()->errx() and KNF; ok djm@

zap unused header and #defines, mostly from stevesk@

kill redundant warning - getopt does it for us; from andrushock AT korovino.net

remove unused variables

add -o to usage() ok markus@

support new syslogd control protocol and add new -o option to detect memory
buffer overflow; idea & ok markus@

NB if you are using memory buffered logging make sure you update both syslogd
and syslogc _and_ restart syslogd because the protocol has changed

Sort getopt list and tidy error checks. From andrushock@korovino.net;
ok deraadt@

zero struct sockaddr_un before use, from andrushock AT korovino.net; ok deraadt@

remove redundant string termination; report from nimadeus@pandora.be

excessively detailed error messages are not unix

syslogc - client to read memory buffered logs from syslogd;
manpage nits jmc@, fixes jose@; ok deraadt@