mirror of https://github.com/tiyn/ii
parent
28ba39e9ea
commit
70b9ca1613
@ -1,73 +0,0 @@
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1.8 (2018-02-04):
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- prevent nick collisions by only setting the nick after the server
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accepted it and print a message about change to server log.
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- remove query.sh.
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- add OpenBSD pledge(2) support.
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- fix QUIT message string.
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- raw IRC output to stdout.
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- add quit command (/q [string]).
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- write timestamp in outfile as UNIX timestamp (UTC+0).
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- server host (-s) doesn't default to irc.freenode and is now required.
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- add option (-u) to connect directly to a UNIX domain socket, this
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is useful for tunneling connections.
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- remove "in" file when leaving a channel (enabled commented code).
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- remove "in" files on exit.
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- use IRC_MAX (512), instead of PIPE_BUF (4096) on most systems.
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PIPE_BUF is guaranteed to be atleast 512 bytes for atomic operations.
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- Makefile: always be verbose.
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- use C99 and -D_DEFAULT_SOURCE
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- remove obsolete gethostbyname, use getaddrinfo.
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- IPV6 support.
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- timeout now uses separate exit statuscode 2.
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- cleanup:
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- use arg.h for command-line option parsing.
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- use sbase util functions (estrtol, eprintf).
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- use and import OpenBSD strlcpy().
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- man page typos.
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- style:
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- linewrap to 79 characters.
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- coding style fixes.
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- non-roman numerals for LICENSE period.
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1.7 (2013-01-05)
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- -k now specifies an environment variable that contains the
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server key. This behaviour has been changed in order to not
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expose the password in the process list.
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- Fix parsing of JOIN messages for certain servers.
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Thanks Ivan Kanakarakis!
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- Use , rather than _ for slash characters in channel names.
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As per RFC , is not allowed in a channel name, while _ is.
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Thanks plomplomplom and Nils Dagsson Moskopp!
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1.6 (2011-01-31):
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- fix regression introduced for handling unknown commands
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1.5 (2011-01-24):
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- fix channel name comparison in add_channel(), compare lowercase
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to prevent leaking file descriptors in the long run => Thanks samurai!
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- only handle commands ii explicitely understands and treat the rest
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as raw irc (only worked for raw commands in capital lettersin the past) => Thanks samurai!
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- create in FIFO on receiving a privmsg directly instead of requiring a new
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/j command first => Thanks Evan Gates
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this also implies that in FIFOs aren't deleted on channel leaves any longer because
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this itself creates a channel event again which in turn would recreate the file
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- minor changes
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1.4 (2008-08-09):
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- fix directory traversal on servers that support SAJOIN
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NOTE: not marking as security relevant as it is only possible to
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create directories outside (which is of course annoying) of the irc
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hierarchy but not overwriting arbitrary files with the channel name.
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- documentation fixes
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- general cleanup
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1.3 (2007-07-14):
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- server messages about users (QUIT,JOIN) will no longer
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go to the user directories but to the server out file to
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give an easy method to monitor it and to prevent spamming
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the irc directory.
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1.2 (2007-06-23):
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- Exit on channel creation failure, thanks Michael Prokop
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- Implemented joining of password protected channels
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- Removed -v option from the manpage since it's not implemented
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@ -1,55 +1,60 @@
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# ii - irc it - simple but flexible IRC client
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# (C)opyright MMV-MMVI Anselm R. Garbe
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# (C)opyright MMV-MMVII Anselm R. Garbe, Nico Golde
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.POSIX:
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include config.mk
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VERSION = 2.0
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# paths
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PREFIX = /usr/local
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MANPREFIX = $(PREFIX)/share/man
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DOCPREFIX = $(PREFIX)/share/doc
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SRC = ii.c
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OBJ = ${SRC:.c=.o}
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OBJ = $(SRC:.c=.o)
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# use system flags.
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II_CFLAGS = $(CFLAGS)
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II_LDFLAGS = $(LDFLAGS)
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all: options ii
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@echo built ii
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# on systems which provide strlcpy(3),
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# remove NEED_STRLCPY from CPPFLAGS and
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# remove strlcpy.o from LIBS
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II_CPPFLAGS = $(CPPFLAGS) -DVERSION=\"$(VERSION)\" -D_DEFAULT_SOURCE -DNEED_STRLCPY
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LIBS = strlcpy.o
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all: ii
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options:
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@echo ii build options:
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@echo "LIBS = ${LIBS}"
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@echo "INCLUDES = ${INCLUDES}"
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@echo "CFLAGS = ${CFLAGS}"
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@echo "LDFLAGS = ${LDFLAGS}"
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@echo "CC = ${CC}"
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@echo "CFLAGS = $(CFLAGS)"
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@echo "LDFLAGS = $(LDFLAGS)"
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@echo "CC = $(CC)"
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.c.o:
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@echo CC $<
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@${CC} -c ${CFLAGS} $<
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$(CC) -c $< $(II_CFLAGS) $(II_CPPFLAGS)
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dist: clean
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@mkdir -p ii-${VERSION}
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@cp -R query.sh Makefile CHANGES README FAQ LICENSE config.mk ii.c ii.1 ii-${VERSION}
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@tar -cf ii-${VERSION}.tar ii-${VERSION}
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@gzip ii-${VERSION}.tar
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@rm -rf ii-${VERSION}
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@echo created distribution ii-${VERSION}.tar.gz
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ii: $(OBJ) $(LIBS)
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$(CC) -o $@ $(OBJ) $(LIBS) $(II_LDFLAGS)
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ii: ${OBJ}
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@echo LD $@
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@${CC} -o $@ ${OBJ} ${LDFLAGS}
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$(OBJ): arg.h
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install: all
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@mkdir -p ${DESTDIR}${DOCDIR}
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@mkdir -p ${DESTDIR}${BINDIR}
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@mkdir -p ${DESTDIR}${MAN1DIR}
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@install -d ${DESTDIR}${BINDIR} ${DESTDIR}${MAN1DIR}
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@install -m 644 CHANGES README query.sh FAQ LICENSE ${DESTDIR}${DOCDIR}
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@install -m 775 ii ${DESTDIR}${BINDIR}
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@install -m 444 ii.1 ${DESTDIR}${MAN1DIR}
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@echo "installed ii"
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mkdir -p $(DESTDIR)$(PREFIX)/bin
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mkdir -p $(DESTDIR)$(MANPREFIX)/man1
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mkdir -p $(DESTDIR)$(DOCPREFIX)/ii
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install -m 644 README FAQ LICENSE $(DESTDIR)$(DOCPREFIX)/ii
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install -m 775 ii $(DESTDIR)$(PREFIX)/bin
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sed "s/VERSION/$(VERSION)/g" < ii.1 > $(DESTDIR)$(MANPREFIX)/man1/ii.1
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chmod 644 $(DESTDIR)$(MANPREFIX)/man1/ii.1
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uninstall: all
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@rm -f ${DESTDIR}${MAN1DIR}/ii.1
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@rm -rf ${DESTDIR}${DOCDIR}
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@rm -f ${DESTDIR}${BINDIR}/ii
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@echo "uninstalled ii"
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rm -f $(DESTDIR)$(MANPREFIX)/man1/ii.1 $(DESTDIR)$(PREFIX)/bin/ii
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rm -rf $(DESTDIR)$(DOCPREFIX)/ii
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dist: clean
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mkdir -p ii-$(VERSION)
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cp -R Makefile README FAQ LICENSE strlcpy.c arg.h \
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ii.c ii.1 ii-$(VERSION)
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tar -cf - ii-$(VERSION) | gzip -c > ii-$(VERSION).tar.gz
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rm -rf ii-$(VERSION)
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clean:
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rm -f ii *~ *.o *core *.tar.gz
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rm -f ii *.o
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@ -1,92 +0,0 @@
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Abstract
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--------
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ii is a minimalistic FIFO and filesystem based IRC client. It creates an irc
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directory tree with server, channel and nick name directories. In every
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directory a FIFO file (in) and normal file (out) is placed.
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The in file is used to communicate with the servers and the out files include
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the server messages. For every channel and every nick name there will be new in
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and out files.
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The basic idea of this is to be able to communicate with an IRC server with
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standard command line tools. For example if you want to join a channel just do
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echo "/j #channel" > in and ii creates a new channel directory with in and out
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file.
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Installation
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------------
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Edit config.mk to match your local setup. ii is installed into
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/usr/local by default.
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Afterwards enter the following command to build and install ii (if
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necessary as root):
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$ make clean install
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Running ii
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------------
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Simply invoke the 'ii' command with required arguments
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To make ii a bit more comfortable use it in combination with the multitail
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program and for example with vim. Run vim in the server directory and use
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key mapping like:
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map w1 :.w >> \#ii/in<cr>
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map w2 :.w >> \#wmii/in<cr>
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to post to channels.
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If you use the next editor line for a new posting you can use ctrl-p for nick
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completion if you wrote the nick in the past.
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Thanks to Matthias Kopfermann for this hint.
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You can find an example of how this nested environment could look like on:
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http://nion.modprobe.de/blog/archives/440-Using-the-ii-irc-client.html
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SSL/TLS support
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---------------
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Below is an example using OpenBSD relayd which sets up a TCP TLS relay
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connection on localhost. A similar setup can be accomplished using
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stunnel or netcat with TLS support. This also works for other programs
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that don't support TLS natively.
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/etc/relayd.conf:
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table <freenode> { irc.freenode.net }
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table <oftc> { irc.oftc.net }
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protocol "irctls" {
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tcp { nodelay, sack }
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}
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relay "freenode" {
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listen on 127.0.0.1 port 6668
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protocol "irctls"
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forward with tls to <freenode> port 6697
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}
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relay "oftc" {
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listen on 127.0.0.1 port 6669
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protocol "irctls"
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forward with tls to <oftc> port 6697
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}
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Then connect:
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./irc -n nick -u name -s 127.0.0.1 -p 6668
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./irc -n nick -u name -s 127.0.0.1 -p 6669
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Configuration
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-------------
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No configuration is needed.
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Changelog
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---------
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Since I missed the chance to add a proper changelog right from the beginning,
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please have a look at the commit messages on http://git.suckless.org/ii/
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they are fairly descriptive on releases prior to 1.2.
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@ -1,8 +0,0 @@
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# ii
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This is my patched version of ii, a commandline irc client.
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The base version is directly from suckless.org.
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Due to problems with newer version it uses the version 1.7.
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## Patches
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The list below shows the currently applied patches to this build.
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- ii-1.7-ssl.diff
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@ -0,0 +1,50 @@
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/*
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* Copy me if you can.
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* by 20h
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*/
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#ifndef ARG_H__
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#define ARG_H__
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extern char *argv0;
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/* use main(int argc, char *argv[]) */
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#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
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argv[0] && argv[0][0] == '-'\
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&& argv[0][1];\
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argc--, argv++) {\
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char argc_;\
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char **argv_;\
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int brk_;\
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if (argv[0][1] == '-' && argv[0][2] == '\0') {\
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argv++;\
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argc--;\
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break;\
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}\
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int i_;\
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for (i_ = 1, brk_ = 0, argv_ = argv;\
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argv[0][i_] && !brk_;\
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i_++) {\
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if (argv_ != argv)\
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break;\
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argc_ = argv[0][i_];\
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switch (argc_)
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#define ARGEND }\
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}
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#define ARGC() argc_
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#define EARGF(x) ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
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((x), abort(), (char *)0) :\
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(brk_ = 1, (argv[0][i_+1] != '\0')?\
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(&argv[0][i_+1]) :\
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(argc--, argv++, argv[0])))
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#define ARGF() ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
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(char *)0 :\
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(brk_ = 1, (argv[0][i_+1] != '\0')?\
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(&argv[0][i_+1]) :\
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(argc--, argv++, argv[0])))
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#endif
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@ -1,27 +0,0 @@
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# Customize to fit your system
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# paths
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PREFIX = /usr/local
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BINDIR = ${PREFIX}/bin
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MANDIR = ${PREFIX}/share/man
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MAN1DIR = ${MANDIR}/man1
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DOCDIR = ${PREFIX}/share/doc/ii
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# Set the following to install to a different root
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DESTDIR =
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INCDIR = ${PREFIX}/include
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LIBDIR = ${PREFIX}/lib
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VERSION = 1.7
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# includes and libs
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INCLUDES = -I. -I${INCDIR} -I/usr/include
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LIBS = -L${LIBDIR} -L/usr/lib -lc -lssl -lcrypto
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# uncomment and comment other variables for compiling on Solaris
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#LIBS = -L${LIBDIR} -L/usr/lib -lc -lsocket -lnsl
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#CFLAGS = -g ${INCLUDES} -DVERSION=\"${VERSION}\"
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# compiler
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CC = cc
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CFLAGS = -g -O0 -W -Wall ${INCLUDES} -DVERSION=\"${VERSION}\"
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LDFLAGS = ${LIBS}
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@ -1,225 +0,0 @@
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diff -up a/config.mk b/config.mk
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--- a/config.mk 2013-01-05 08:26:47.000000000 -0500
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+++ b/config.mk 2013-02-15 15:27:10.183075163 -0500
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@@ -16,7 +16,7 @@ VERSION = 1.7
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# includes and libs
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INCLUDES = -I. -I${INCDIR} -I/usr/include
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-LIBS = -L${LIBDIR} -L/usr/lib -lc
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+LIBS = -L${LIBDIR} -L/usr/lib -lc -lssl -lcrypto
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# uncomment and comment other variables for compiling on Solaris
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#LIBS = -L${LIBDIR} -L/usr/lib -lc -lsocket -lnsl
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#CFLAGS = -g ${INCLUDES} -DVERSION=\"${VERSION}\"
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diff -up a/ii.1 b/ii.1
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--- a/ii.1 2013-01-05 08:26:47.000000000 -0500
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+++ b/ii.1 2013-02-15 15:28:42.739074771 -0500
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@@ -25,6 +25,8 @@ and ii creates a new channel directory w
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.IR servername ]
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.RB [ \-p
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.IR port ]
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+.RB [ \-e
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+.IR ssl ]
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.RB [ \-k
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.IR environment variable ]
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.RB [ \-i
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@@ -42,6 +44,9 @@ lets you override the default servername
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.BI \-p " port"
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lets you override the default port (6667)
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.TP
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+.BI \-e " ssl"
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+lets you connect using ssl encryption. The default ssl port is 6697.
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+.TP
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.BI \-k " environment variable"
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lets you specify an environment variable that contains your IRC password, e.g. IIPASS="foobar" ii -k IIPASS.
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This is done in order to prevent other users from eavesdropping the server password via the process list.
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diff -up a/ii.c b/ii.c
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--- a/ii.c 2013-01-05 08:26:47.000000000 -0500
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+++ b/ii.c 2013-02-15 15:33:39.603075095 -0500
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@@ -18,12 +18,23 @@
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#include <ctype.h>
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#include <time.h>
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#include <unistd.h>
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+#include <openssl/rand.h>
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+#include <openssl/ssl.h>
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+#include <openssl/err.h>
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#ifndef PIPE_BUF /* FreeBSD don't know PIPE_BUF */
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#define PIPE_BUF 4096
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#endif
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#define PING_TIMEOUT 300
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#define SERVER_PORT 6667
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+#define SSL_SERVER_PORT 6697
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+#define WRITE(con, mes, len) (use_ssl ? SSL_write(irc->sslHandle, mes, len) : write(con->irc, mes, len))
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+#define READ(fd, buf, size) (from_server && use_ssl ? SSL_read(irc->sslHandle, buf, size) : read(fd, buf, size))
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+typedef struct {
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+ int irc;
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+ SSL *sslHandle;
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+ SSL_CTX *sslContext;
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+} conn;
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enum { TOK_NICKSRV = 0, TOK_USER, TOK_CMD, TOK_CHAN, TOK_ARG, TOK_TEXT, TOK_LAST };
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typedef struct Channel Channel;
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@@ -33,7 +44,8 @@ struct Channel {
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Channel *next;
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};
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-static int irc;
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+conn *irc;
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+static int use_ssl;
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static time_t last_response;
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static Channel *channels = NULL;
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static char *host = "irc.freenode.net";
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@@ -45,7 +57,7 @@ static void usage() {
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fputs("ii - irc it - " VERSION "\n"
|
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"(C)opyright MMV-MMVI Anselm R. Garbe\n"
|
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"(C)opyright MMV-MMXI Nico Golde\n"
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- "usage: ii [-i <irc dir>] [-s <host>] [-p <port>]\n"
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+ "usage: ii [-i <irc dir>] [-s <host>] [-p <port>] [-e ssl]\n"
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" [-n <nick>] [-k <password>] [-f <fullname>]\n", stderr);
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exit(EXIT_FAILURE);
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}
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@@ -148,11 +160,12 @@ static void login(char *key, char *fulln
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nick, nick, host, fullname ? fullname : nick);
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else snprintf(message, PIPE_BUF, "NICK %s\r\nUSER %s localhost %s :%s\r\n",
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nick, nick, host, fullname ? fullname : nick);
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- write(irc, message, strlen(message)); /* login */
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+ WRITE(irc, message, strlen(message)); /* login */
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}
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-static int tcpopen(unsigned short port) {
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+conn *tcpopen(unsigned short port) {
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int fd;
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+ conn *c;
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struct sockaddr_in sin;
|
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struct hostent *hp = gethostbyname(host);
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|
||||
@@ -172,7 +185,22 @@ static int tcpopen(unsigned short port)
|
||||
perror("ii: cannot connect to host");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
- return fd;
|
||||
+ c = malloc(sizeof(conn));
|
||||
+ c->irc = fd;
|
||||
+ if(use_ssl) {
|
||||
+ c->sslHandle = NULL;
|
||||
+ c->sslContext = NULL;
|
||||
+ SSL_load_error_strings();
|
||||
+ SSL_library_init();
|
||||
+ c->sslContext = SSL_CTX_new(SSLv23_client_method());
|
||||
+ if(c->sslContext == NULL)
|
||||
+ ERR_print_errors_fp(stderr);
|
||||
+ c->sslHandle = SSL_new(c->sslContext);
|
||||
+ if(!SSL_set_fd(c->sslHandle, c->irc)
|
||||
+ || (SSL_connect(c->sslHandle) != 1))
|
||||
+ ERR_print_errors_fp(stderr);
|
||||
+ }
|
||||
+ return c;
|
||||
}
|
||||
|
||||
static size_t tokenize(char **result, size_t reslen, char *str, char delim) {
|
||||
@@ -219,7 +247,7 @@ static void proc_channels_privmsg(char *
|
||||
snprintf(message, PIPE_BUF, "<%s> %s", nick, buf);
|
||||
print_out(channel, message);
|
||||
snprintf(message, PIPE_BUF, "PRIVMSG %s :%s\r\n", channel, buf);
|
||||
- write(irc, message, strlen(message));
|
||||
+ WRITE(irc, message, strlen(message));
|
||||
}
|
||||
|
||||
static void proc_channels_input(Channel *c, char *buf) {
|
||||
@@ -273,7 +301,7 @@ static void proc_channels_input(Channel
|
||||
else
|
||||
snprintf(message, PIPE_BUF,
|
||||
"PART %s :ii - 500 SLOC are too much\r\n", c->name);
|
||||
- write(irc, message, strlen(message));
|
||||
+ WRITE(irc, message, strlen(message));
|
||||
close(c->fd);
|
||||
/*create_filepath(infile, sizeof(infile), c->name, "in");
|
||||
unlink(infile); */
|
||||
@@ -288,7 +316,7 @@ static void proc_channels_input(Channel
|
||||
snprintf(message, PIPE_BUF, "%s\r\n", &buf[1]);
|
||||
|
||||
if (message[0] != '\0')
|
||||
- write(irc, message, strlen(message));
|
||||
+ WRITE(irc, message, strlen(message));
|
||||
}
|
||||
|
||||
static void proc_server_cmd(char *buf) {
|
||||
@@ -339,7 +367,7 @@ static void proc_server_cmd(char *buf) {
|
||||
return;
|
||||
} else if(!strncmp("PING", argv[TOK_CMD], 5)) {
|
||||
snprintf(message, PIPE_BUF, "PONG %s\r\n", argv[TOK_TEXT]);
|
||||
- write(irc, message, strlen(message));
|
||||
+ WRITE(irc, message, strlen(message));
|
||||
return;
|
||||
} else if(!argv[TOK_NICKSRV] || !argv[TOK_USER]) { /* server command */
|
||||
snprintf(message, PIPE_BUF, "%s%s", argv[TOK_ARG] ? argv[TOK_ARG] : "", argv[TOK_TEXT] ? argv[TOK_TEXT] : "");
|
||||
@@ -373,11 +401,11 @@ static void proc_server_cmd(char *buf) {
|
||||
print_out(argv[TOK_CHAN], message);
|
||||
}
|
||||
|
||||
-static int read_line(int fd, size_t res_len, char *buf) {
|
||||
+static int read_line(int fd, size_t res_len, char *buf, int from_server) {
|
||||
size_t i = 0;
|
||||
char c = 0;
|
||||
do {
|
||||
- if(read(fd, &c, sizeof(char)) != sizeof(char))
|
||||
+ if(READ(fd, &c, sizeof(char)) != sizeof(char))
|
||||
return -1;
|
||||
buf[i++] = c;
|
||||
}
|
||||
@@ -388,7 +416,7 @@ static int read_line(int fd, size_t res_
|
||||
|
||||
static void handle_channels_input(Channel *c) {
|
||||
static char buf[PIPE_BUF];
|
||||
- if(read_line(c->fd, PIPE_BUF, buf) == -1) {
|
||||
+ if(read_line(c->fd, PIPE_BUF, buf, 0) == -1) {
|
||||
close(c->fd);
|
||||
int fd = open_channel(c->name);
|
||||
if(fd != -1)
|
||||
@@ -402,7 +430,7 @@ static void handle_channels_input(Channe
|
||||
|
||||
static void handle_server_output() {
|
||||
static char buf[PIPE_BUF];
|
||||
- if(read_line(irc, PIPE_BUF, buf) == -1) {
|
||||
+ if(read_line(irc->irc, PIPE_BUF, buf, 1) == -1) {
|
||||
perror("ii: remote host closed connection");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
@@ -419,8 +447,8 @@ static void run() {
|
||||
snprintf(ping_msg, sizeof(ping_msg), "PING %s\r\n", host);
|
||||
for(;;) {
|
||||
FD_ZERO(&rd);
|
||||
- maxfd = irc;
|
||||
- FD_SET(irc, &rd);
|
||||
+ maxfd = irc->irc;
|
||||
+ FD_SET(irc->irc, &rd);
|
||||
for(c = channels; c; c = c->next) {
|
||||
if(maxfd < c->fd)
|
||||
maxfd = c->fd;
|
||||
@@ -440,10 +468,10 @@ static void run() {
|
||||
print_out(NULL, "-!- ii shutting down: ping timeout");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
- write(irc, ping_msg, strlen(ping_msg));
|
||||
+ WRITE(irc, ping_msg, strlen(ping_msg));
|
||||
continue;
|
||||
}
|
||||
- if(FD_ISSET(irc, &rd)) {
|
||||
+ if(FD_ISSET(irc->irc, &rd)) {
|
||||
handle_server_output();
|
||||
last_response = time(NULL);
|
||||
}
|
||||
@@ -475,10 +503,13 @@ int main(int argc, char *argv[]) {
|
||||
case 'p': port = strtol(argv[++i], NULL, 10); break;
|
||||
case 'n': snprintf(nick,sizeof(nick),"%s", argv[++i]); break;
|
||||
case 'k': key = getenv(argv[++i]); break;
|
||||
+ case 'e': use_ssl = 1; ++i; break;
|
||||
case 'f': fullname = argv[++i]; break;
|
||||
default: usage(); break;
|
||||
}
|
||||
}
|
||||
+ if(use_ssl)
|
||||
+ port = port == SERVER_PORT ? SSL_SERVER_PORT : port;
|
||||
irc = tcpopen(port);
|
||||
if(!snprintf(path, sizeof(path), "%s/%s", prefix, host)) {
|
||||
fputs("ii: path to irc directory too long\n", stderr);
|
||||
@ -1,29 +0,0 @@
|
||||
#!/bin/sh
|
||||
# ----------------------------------------------------
|
||||
# Nico Golde <nico@ngolde.de>
|
||||
# License: do whatever you want with this code
|
||||
# Purpose: locate new queries for the ii irc client
|
||||
# ----------------------------------------------------
|
||||
|
||||
IRCPATH=$HOME/irc
|
||||
TMPFILE=$IRCPATH/queries.tmp
|
||||
|
||||
if [ ! -f $TMPFILE ]; then
|
||||
touch $TMPFILE
|
||||
fi
|
||||
|
||||
echo "searching new query data"
|
||||
for i in `find $IRCPATH -newer $TMPFILE -name 'out'`
|
||||
do
|
||||
grep -v '\-!\-' $i > /dev/null 2>&1 # if file doesnt just contain server stuff
|
||||
if [ $? -ne 1 ]; then
|
||||
# strip server, nickserv and channel out files
|
||||
echo $i | egrep -v -i "nickserv|#|$IRCPATH/(irc\.freenode\.net|irc\.oftc\.net)/out" > /dev/null 2>&1
|
||||
if [ $? -ne 1 ]; then
|
||||
printf "new data in: %s\n========================================================\n" "$i"
|
||||
tail -5 $i
|
||||
fi
|
||||
fi
|
||||
done
|
||||
|
||||
touch $TMPFILE
|
||||
@ -0,0 +1,32 @@
|
||||
/* Taken from OpenBSD */
|
||||
#include <sys/types.h>
|
||||
#include <string.h>
|
||||
|
||||
/*
|
||||
* Copy src to string dst of size siz. At most siz-1 characters
|
||||
* will be copied. Always NUL terminates (unless siz == 0).
|
||||
* Returns strlen(src); if retval >= siz, truncation occurred.
|
||||
*/
|
||||
size_t
|
||||
strlcpy(char *dst, const char *src, size_t siz)
|
||||
{
|
||||
char *d = dst;
|
||||
const char *s = src;
|
||||
size_t n = siz;
|
||||
|
||||
/* Copy as many bytes as will fit */
|
||||
if (n != 0) {
|
||||
while (--n != 0) {
|
||||
if ((*d++ = *s++) == '\0')
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* Not enough room in dst, add NUL and traverse rest of src */
|
||||
if (n == 0) {
|
||||
if (siz != 0)
|
||||
*d = '\0'; /* NUL-terminate dst */
|
||||
while (*s++)
|
||||
;
|
||||
}
|
||||
return(s - src - 1); /* count does not include NUL */
|
||||
}
|
||||
Loading…
Reference in new issue