This document (hopefully) gives a brief explanation of the use of server notice masks new to ircu2.10.00. This mask allows clients to specify which types of server notices they will receive when usermode +s. The mask may optionally be omitted, and reasonable defaults will be used by the server.

Note: the descriptions here will be best understood by those with knowledge of C syntax. We do not attempt to explain either this or hexadecimal values in this document, and familiarity with these is assumed of the reader.

Usage: /mode <nick> +s [+/-][mask]

Mask		Hex value	Description
1	SNO_OLDSNO	0x1	/* unsorted old messages */
2	SNO_SERVKILL	0x2	/* server kills (nick collisions) */
4	SNO_OPERKILL	0x4	/* oper kills */
8	SNO_HACK2	0x8	/* desyncs */
16	SNO_HACK3	0x10	/* temporary desyncs */
32	SNO_UNAUTH	0x20	/* unauthorized connections */
64	SNO_TCPCOMMON	0x40	/* common TCP or socket errors */
128	SNO_TOOMANY	0x80	/* too many connections */
256	SNO_HACK4	0x100	/* Uworld actions on channels */
512	SNO_GLINE	0x200	/* glines */
1024	SNO_NETWORK	0x400	/* net join/break, etc */
2048	SNO_IPMISMATCH	0x800	/* IP mismatches */
4096	SNO_THROTTLE	0x1000	/* host throttle add/remove notices */
8192	SNO_OLDREALOP	0x2000	/* old oper-only messages */
16384	SNO_CONNEXIT	0x4000	/* client connect/exit (ugh) */

standard +s	SNO_DEFAULT (SNO_NETWORK | SNO_OPERKILL | SNO_GLINE)
standard +s when +o/O	SNO_DEFAULT | SNO_HACK2 | SNO_HACK4 | SNO_OLDSNO)
only opers may set	SNO_OPER (SNO_CONNEXIT | SNO_OLDREALOP)

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Examples of Usage

To receive only operkills, use /mode +s 4
To receive operkills and glines, add the values:

/mode <nick> +s 516

(512+4=516)

If you are already receiving some notices and you wish to add notices of netjoins/breaks use:

/mode Ghostwolf +s +1024

If you wish to stop receiving netjoin/break notices, but continue to receive other notices, use:

/mode Ghostwolf +s -1024
OR
/mode Ghostwolf -s +1024

A user typing /mode Ghostwolf +s will receive netsplits/joins, operkills, and g-lines.

Opers who are +s will additionally receive HACK notices and anything that was originally in sendto_ops() and wasn't changed. Only opers can choose to receive connect/exit notices and anything that originally was in sendtoreal_ops() and hasn't been changed (connect/exit notices also require a #define in config.h).

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If you have further questions about server notices (implementation, etc.),
please consult the ircu source code and/or e-mail coder-com@undernet.org.

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