| Commit message (Collapse) | Author | Age |
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Separate churn from actual change in upcoming diff,
no functional change.
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After TLS cert/key files, the save file is the only file being read from;
do so before pleding and drop the "rpath" promise all together: log files
will only be created and written to.
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The format of the reply is defined as "<nick> :{[@|+]<channel><space>}".
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It doesn't do as much anymore, so move it back inline.
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Both ssl(8) as well as ncurses(3) related files are now read completely
by the time of ircConfig() and uiInitEarly() respectively, so read
access to the filesystem is no longer needed at all unless the "log" or
"save" options are used.
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Previous tls_default_ca_cert_file(3) hoisting makes this possible: all
TLS related files are fully loaded into memory by ircConfig() such that
ircConnect() will not do any file I/O.
Call ircConfig() before pledge(2) in the `-o' "print cert" case so this
works out -- that order should have been preserved in the previous
a989e15 "OpenBSD: hoist -o/printCert code to simplify" but fixing it now
nicely demonstrates the achivement even more so.
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tls_connect_socket(3) in ircConnect() does that by default already
unless tls_config_set_ca_file(3) was used.
Loading CA certificates before connecting makes no practical difference
except on OpenBSD where this allows for tighter unveil und pledge setups
now that all required (TLS related) file I/O is finished by the time
ircConnect() gets to do network I/O.
In case of the hidden `-!' insecure flag which is implied by `-o' to
print server certificates and exit, loading root certificates is not
required at all; likewise, using explicit self signed server
certificates will not involve certificate authorities either, hence load
them only if needed.
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It is technically undefined behavior (see C11 6.5.6p8) to construct
a pointer more than one past the end of an array. To prevent this,
compare n with the remaining space in the array before adding to
ptr.
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Based on seprint(2) from Plan 9. I'm not sure if my return value
exactly matches Plan 9's in the case of truncation. seprint(2) is
described only as returning a pointer to the terminating '\0', but
if it does so even in the case of truncation, it is awkward for the
caller to detect. This implementation returns end in the truncation
case, so that (ptr == end) indicates truncation.
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catgirl needs:
- "stdio tty" at all times
- "rpath inet dns" once at startup for terminfo(5) and ssl(8)
- "proc exec" iff -R/restrict options is disabled
- "rpath wpath cpath" iff -s/save or -l/log options is enabled
Status quo: catgirl starts with the superset of all possible promises
"stdio rpath wpath cpath inet dns tty proc exec", drops offline with
"stdio rpath wpath cpath tty proc exec" and possibly drops to either of
"stdio rpath wpath cpath tty", "stdio tty proc exec" or "stdio tty"
depending on the options used.
Such step-by-step reduction is straight forward and easy to model along
the process runtime, but it comes with the drawback of starting with
too broad promises right from the beginning, i.e. `catgirl -R -h host'
is able to execute code and write to filesystems even though it must
never do so according the (un)used options.
Lay out required promises up front and pledge in two stages:
1. initial setup, i.e. fixed "stdio tty" plus temporary "rpath inet dns"
plus potential "rpath wpath cpath" plus potential "proc exec"
2. final rutime, i.e. fixed "stdio tty"
plus potential "rpath wpath cpath" plus potential "proc exec"
This way the above mentioned usage example can never execute or write
files, hence less potential for bugs and more accurate modelling of
catgirl's runtime -- dropping "inet dns" alone in between also becomes
obsolete with this approach.
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initscr(3) in uiInitEarly() attempts more than /usr/share/terminfo/, see
`mandoc -O tag=TERMINFO ncurses`.
Even though non-default terminfo handling seems rare and it is unlikely
to have ever caused a problem for catgirl users on OpenBSD, the current
is still wrong by oversimplifying it.
Avoid the entire curses/unveil clash by setting up the screen before
unveiling.
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Nothing but the TLS handshake is required, so skip all other setup.
On OpenBSD, unveil() handling needs fixing which will involve code
reshuffling -- this is the first related but standalone step.
Also pledge this one-off code path individually such with simpler and
tighter promises while here.
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Oops!
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The (not perfectly obvious) way catgirl crafts directories gets triggered
by unveilAll() even if no passed option requires filesystem access:
$ env -i TERM=xterm ./catgirl -h irc.hackint.eu -R -n nobody
catgirl: HOME unset
Here unveil(2) is used due to the "restrict" option, but besides terminfo(5)
and certificates catgirl does not need any other files, yet it tries to init
the data path -- passing XDG_DATA_HOME=/var/empty makes above invocation work
showing how the then successful path setup is not required.
Fix this by not unveiling the unneeded data path in the first place.
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"username" alone is ambiguous and without jumping to ENVIRONMENT
explaining the use of USER, catgirl's user- and nickname options read
like pointing at each other:
-n nick | nick = nick
Set nickname to nick. The default nickname is the user's name.
[...]
-u user | user = user
Set username to user. The default username is the same as the
nickname.
Clarify that `-n' does *not* default to `-u's value.
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When waddnstr is called with a string that would extend past the
end of the window, the string is truncated, the cursor remains at
the last column, and ERR is returned. If this error is ignored and
the loop continues, the next call to waddnstr overwrites the character
at this column, resulting in a slight visual artifact. When the
window is too small to fit the full status line, it is effectively
truncated by one space on the right, since the string shown for
each channel begins with a space. Additionally, if the last window
is the current window, the space is shown with a colored background.
To fix this, when waddnstr returns ERR, exit the loop in styleAdd()
early return -1 to propogate this error down to the caller.
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Reuse the /window command to preserve /wi abbreviation.
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Without, the mandoc HTML output includes the space and equals in
the class="Cm" element and generates a permalink of #hash_= for
example.
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E.g. ":t debug" will now jump right to the definition just like ":t v"
already did -- at least with mandoc(1) from OpenBSD.
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So that the first part of $SSH_CLIENT can be passed as username.
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`-H 0,0`/"hash = 0,0" makes catgirl mostly colorless which is great,
but topic changes still hardcode brown/green colors to show differences
which is usually not desired by users (like me) disabling colors.
Go for a less eye stressing topic change message that shows both old
and new in reverse video with default terminal colors.
This isn't perfect, other parts of catgirl still hardcode colors and
`-H 0,0`/"hash = 0,0" was never meant to disable colors completely, but
topics change often enough that avoiding less readable^Waccessible topic
diffs seems sensible enough.
NB: parseHash() is brittle and "0,0" is not the only value disabling
colors...
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It should have 4, but the handler only uses 3.
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Using the +draft/reply client tag, which is supported by BitBot.
This hides the bot's replies to ignored users or ignored bot command
messages.
This commit is dedicated to the land of Estonia.
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I avoided defaulting MANDIR to /usr/local/man because I thought it
didn't work on GNU/Linux and users would be confused, but it turns
out man-db's default configuration includes both /usr/local/man and
/usr/man, so ${PREFIX}/man is a sensical default.
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In the same way that /query copies the id color from completion.
Also make both first check that a color isn't already set.
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At least in InspIRCd's implementation, you only get invite-notify
INVITEs if you are op, so inviting with no op (where allowed by a
channel mode) results in only a 341. On the other hand, inviting
as an op produces both a 341 and an INVITE, so will be displayed
twice, but showing something sometimes twice is better than not
showing it at all.
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This feature is rarely used, so just skip STATUSMSG prefixes in the
target so messages get routed correctly.
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How long has this been here?
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So you don't have to remember those dang numbers whose order makes
no sense!
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Reflect what will actually be sent.
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/me shouldn't behave differently from a regular message.
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Those patterns are not specific to the shell, many commands support them.
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And I think with C-Left and C-Right I can actually say "as expected"
now.
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The recent addition of "#{source_files}" allows us to avoid hardcoding
the file name and instead ask tmux itself for the very file it used to
create the session in the first place, i.e. "-f ./chat.tmux.conf".
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Trust is not certificate pinning and should only be used for
self-signed certificates.
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