diff options
Diffstat (limited to 'nxproxy')
| -rw-r--r-- | nxproxy/.gitignore | 2 | ||||
| -rw-r--r-- | nxproxy/Main.c | 120 | ||||
| -rw-r--r-- | nxproxy/Makefile.in | 112 | ||||
| l--------- | nxproxy/VERSION | 1 | ||||
| -rw-r--r-- | nxproxy/configure.in | 186 | ||||
| -rwxr-xr-x | nxproxy/install-sh | 238 | ||||
| -rw-r--r-- | nxproxy/man/nxproxy.1 | 395 | ||||
| -rwxr-xr-x | nxproxy/mkinstalldirs | 34 |
8 files changed, 1088 insertions, 0 deletions
diff --git a/nxproxy/.gitignore b/nxproxy/.gitignore new file mode 100644 index 000000000..3d98254b2 --- /dev/null +++ b/nxproxy/.gitignore @@ -0,0 +1,2 @@ +Makefile +nxproxy diff --git a/nxproxy/Main.c b/nxproxy/Main.c new file mode 100644 index 000000000..d9fb1ef4f --- /dev/null +++ b/nxproxy/Main.c @@ -0,0 +1,120 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/. */ +/* */ +/* NXPROXY, NX protocol compression and NX extensions to this software */ +/* are copyright of NoMachine. Redistribution and use of the present */ +/* software is allowed according to terms specified in the file LICENSE */ +/* which comes in the source distribution. */ +/* */ +/* Check http://www.nomachine.com/licensing.html for applicability. */ +/* */ +/* NX and NoMachine are trademarks of Medialogic S.p.A. */ +/* */ +/* All rigths reserved. */ +/* */ +/**************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <limits.h> + +#include "NX.h" + +#define PANIC +#define WARNING +#undef TEST +#undef DEBUG + +extern const char *__progname; + +/* + * Entry point when running nxproxy stand-alone. + */ + +int main(int argc, const char **argv) +{ + int result = -1; + + char *options = NULL; + + char *nx_commfd_str = NULL; + + options = getenv("NX_DISPLAY"); + + if ((nx_commfd_str = getenv("NX_COMMFD")) != NULL) + { + errno = 0; + unsigned long int nx_commfd = strtoul(nx_commfd_str, NULL, 10); + + if ((errno) && (0 == nx_commfd)) + { + fprintf(stderr, "%s: NX_COMMFD environment variable's value [%s] is not a file descriptor number. " + "Aborting...\n", + __progname, nx_commfd_str + ); + NXTransCleanup(); + } + else if ((unsigned long int) INT_MAX < nx_commfd) + { + fprintf(stderr, "%s: NX_COMMFD environment variable's value [%lu] is out of range for a file descriptor number. " + "Aborting...\n", + __progname, nx_commfd); + NXTransCleanup(); + } + else { + result = NXTransCreate(nx_commfd, NX_MODE_SERVER, options); + + if (result != 1) + { + fprintf(stderr, "%s: NXTransCreate failed for FD#%lu\n" + "Aborting...", + __progname, nx_commfd); + NXTransCleanup(); + } + + } + + // go into endless loop + + if (result == 1) + { + while (NXTransRunning(NX_FD_ANY)) + result = NXTransContinue(NULL); + } + } + else + { + + if (NXTransParseCommandLine(argc, argv) < 0) + { + NXTransCleanup(); + } + + if (NXTransParseEnvironment(options, 0) < 0) + { + NXTransCleanup(); + } + + /* + * This should not return... + */ + + #ifdef TEST + fprintf(stderr, "%s: Yielding control to NX entry point.\n", __progname); + #endif + + result = NXTransProxy(NX_FD_ANY, NX_MODE_ANY, NX_DISPLAY_ANY); + } + + /* + * ...So these should not be called. + */ + + NXTransExit(result); + + return 0; +} diff --git a/nxproxy/Makefile.in b/nxproxy/Makefile.in new file mode 100644 index 000000000..3a27cbd29 --- /dev/null +++ b/nxproxy/Makefile.in @@ -0,0 +1,112 @@ +# +# Get values from configure script. +# +VERSION=@VERSION@ +LIBVERSION=@LIBVERSION@ + +# +# Enable really all warnings. This, though, gives +# a warning due to pthread.h and unistd.h. +# +# -Wredundant-decls +# +CXX = @CXX@ +CXXFLAGS = @CXXFLAGS@ @X_CFLAGS@ @DEFS@ \ + -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \ + -Wmissing-declarations -Wnested-externs + +CXXINCLUDES = -I. -I../nxcomp + +CC = @CC@ +CCFLAGS = $(CXXFLAGS) +CCINCLUDES = -I. -I../nxcomp +CCDEFINES = + +LDFLAGS = @LDFLAGS@ +LIBS = @LIBS@ + +# +# Only if THREADS is defined. +# +# LIBS = $(LIBS) -lpthread +# + +srcdir = @srcdir@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ +bindir = @bindir@ +man1dir = @mandir@/man1 +VPATH = @srcdir@ + +INSTALL = @INSTALL@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_DATA = @INSTALL_DATA@ +DESTDIR = +RM_FILE = rm -f + +# +# This should be autodetected. +# + +MAKEDEPEND = @MAKEDEPEND@ +DEPENDINCLUDES = -I/usr/include/g++ -I/usr/include/g++-3 + +.SUFFIXES: .cpp.c + +.cpp.o: + $(CXX) -c $(CXXFLAGS) $(CXXINCLUDES) $(CXXDEFINES) $< +.c.o: + $(CC) -c $(CCFLAGS) $(CCINCLUDES) $(CCDEFINES) $< + +PROGRAM = nxproxy + +all: depend $(PROGRAM) + +MSRC = Main.c + +CSRC = + +CXXSRC = + +MOBJ = $(MSRC:.c=.o) +COBJ = $(CSRC:.c=.o) +CXXOBJ = $(CXXSRC:.cpp=.o) + +$(PROGRAM): $(MOBJ) $(COBJ) $(CXXOBJ) + $(CXX) $(CXXFLAGS) -o $@ $(MOBJ) $(LDFLAGS) $(LIBS) + +depends: depend.status + +depend: depend.status + +depend.status: + if [ -n "$(MAKEDEPEND)" ] && [ -x "$(MAKEDEPEND)" ] ; then \ + $(MAKEDEPEND) $(CXXINCLUDES) $(CCINCLUDES) \ + $(DEPENDINCLUDES) -f Makefile $(MSRC) $(CSRC) $(CXXSRC) 2>/dev/null; \ + fi + touch depend.status + +install: install.bin install.man + +install.bin: $(PROGRAM) + $(srcdir)/mkinstalldirs $(DESTDIR)$(bindir) + $(INSTALL_PROGRAM) $(PROGRAM) $(DESTDIR)$(bindir)/$(PROGRAM) + +install.man: + $(srcdir)/mkinstalldirs $(DESTDIR)$(man1dir) + $(INSTALL_DATA) man/$(PROGRAM).1 $(DESTDIR)$(man1dir)/$(PROGRAM).1 + +uninstall: uninstall.bin uninstall.man + +uninstall.bin: + $(RM_FILE) $(DESTDIR)$(bindir)/$(PROGRAM) + +uninstall.man: + $(RM_FILE) $(DESTDIR)$(man1dir)/nxproxy.1 + +clean: + -rm -f *~ *.o *.bak st?????? core core.* *.out.* \ + $(PROGRAM) $(PROGRAM).exe $(LIBFULL) $(LIBLOAD) $(LIBSHARED) $(LIBARCHIVE) + +distclean: clean + -rm -rf autom4te.cache config.status config.log config.cache depend.status Makefile tags configure diff --git a/nxproxy/VERSION b/nxproxy/VERSION new file mode 120000 index 000000000..6ff19de4b --- /dev/null +++ b/nxproxy/VERSION @@ -0,0 +1 @@ +../VERSION
\ No newline at end of file diff --git a/nxproxy/configure.in b/nxproxy/configure.in new file mode 100644 index 000000000..12e2a08d2 --- /dev/null +++ b/nxproxy/configure.in @@ -0,0 +1,186 @@ +dnl Process this file with autoconf to produce a configure script. + +dnl Prolog + +AC_INIT(Main.c) +AC_PREREQ(2.13) + +dnl Reset default compilation flags. + +if test "x$CXXFLAGS" == "x"; then + CXXFLAGS="-O3" +fi +if test "x$CPPFLAGS" == "x"; then + CPPFLAGS="-O3" +fi + +dnl Prefer headers and libraries from nx-X11 if present. + +if test -d "../nx-X11/exports/include" ; then + CXXFLAGS="$CXXFLAGS -I../nx-X11/exports/include" + LIBS="$LIBS -L../nx-X11/exports/lib" +fi + +dnl Check whether --with-ipaq was given. + +if test "${with_ipaq}" = yes; then + echo -e "enabling ipaq configuration" + CXX="arm-linux-c++" + CC="arm-linux-gcc" + unset ac_cv_prog_armcxx + unset ac_cv_prog_armcc + unset ac_cv_prog_CXXCPP + AC_CHECK_PROG([armcxx],["$CXX"],[yes],[no],[$PATH]) + AC_CHECK_PROG([armcc],["$CC"],[yes],[no],[$PATH]) + if test $armcxx = "yes" && test $armcc = "yes" ; then + ac_cv_prog_CXX="$CXX" + ac_cv_prog_CC="$CC" + else + AC_MSG_ERROR(installation or configuration problem: I cannot find compiler for arm-linux) + fi +else + unset ac_cv_prog_CXX + unset ac_cv_prog_CC + unset ac_cv_prog_CXXCPP +fi + +dnl Check for programs. + +AC_PROG_CXX +AC_PROG_CC +AC_LANG_CPLUSPLUS + +dnl Check for BSD compatible install. + +AC_PROG_INSTALL + +dnl Check for extra header files. + +AC_PATH_XTRA + +dnl Custom addition. + +ac_help="$ac_help + --with-symbols give -g flag to compiler to produce debug symbols + --with-info define INFO at compile time to get basic log output + --with-valgrind clean up allocated buffers to avoid valgrind warnings + --with-version use this version for produced libraries" + +dnl Check to see if we're running under Cygwin32. + + +dnl Check to see if we're running under FreeBSD. +AC_DEFUN(nxconf_FreeBSD, +[AC_CACHE_CHECK(for FreeBSD environment, nxconf_cv_freebsd, +[AC_TRY_COMPILE(,[return __FreeBSD__;], +nxconf_cv_freebsd=yes, nxconf_cv_freebsd=no) +rm -f conftest*]) +FreeBSD= +test "$nxconf_cv_freebsd" = yes && FreeBSD=yes]) +nxconf_FreeBSD + + +AC_DEFUN(nxconf_CYGWIN32, +[AC_CACHE_CHECK(for Cygwin32 environment, nxconf_cv_cygwin32, +[AC_TRY_COMPILE(,[return __CYGWIN32__;], +nxconf_cv_cygwin32=yes, nxconf_cv_cygwin32=no) +rm -f conftest*]) +CYGWIN32= +test "$nxconf_cv_cygwin32" = yes && CYGWIN32=yes]) +nxconf_CYGWIN32 + +dnl Check for Darwin environment. + +AC_DEFUN(nxconf_DARWIN, +[AC_CACHE_CHECK(for Darwin environment, nxconf_cv_darwin, +[AC_TRY_COMPILE(,[return __APPLE__;], +nxconf_cv_darwin=yes, nxconf_cv_darwin=no) +rm -f conftest*]) +DARWIN= +test "$nxconf_cv_darwin" = yes && DARWIN=yes]) +nxconf_DARWIN + +dnl Check to see if we're running under Solaris. + +AC_DEFUN(nxconf_SUN, +[AC_CACHE_CHECK(for SunOS environment, nxconf_cv_sun, +[AC_TRY_COMPILE(,[return __sun;], +nxconf_cv_sun=yes, nxconf_cv_sun=no) +rm -f conftest*]) +SUN= +test "$nxconf_cv_sun" = yes && SUN=yes]) +nxconf_SUN + +dnl Check whether --with-version was given. + +AC_SUBST(LIBVERSION) +AC_SUBST(VERSION) +if test "${with_version}" = yes; then + VERSION=${ac_option} +else + VERSION=`cat VERSION` +fi +echo -e "compiling version ${VERSION}" + +LIBVERSION=`echo ${VERSION} | cut -d '.' -f 1` + +CXXFLAGS="$CXXFLAGS -DVERSION=\\\"${VERSION}\\\"" +CPPFLAGS="$CPPFLAGS -DVERSION=\\\"${VERSION}\\\"" + +dnl Check whether --with-symbols or --without-symbols was +dnl given and set the required optimization level. + +if test "${with_symbols}" = yes; then + echo -e "enabling production of debug symbols" + CXXFLAGS="-g $CXXFLAGS" + CPPFLAGS="-g $CPPFLAGS" +else + echo -e "disabling production of debug symbols" +fi + +dnl Check whether --with-info or --without-info was given. + +if test "${with_info}" = yes; then + echo -e "enabling info output in the log file" + CXXFLAGS="$CXXFLAGS -DINFO" + CPPFLAGS="$CPPFLAGS -DINFO" +else + echo -e "disabling info output in the log file" +fi + +dnl Check whether --with-valgrind or --without-valgrind was given. + +if test "${with_valgrind}" = yes; then + echo -e "enabling valgrind memory checker workarounds" + CXXFLAGS="$CXXFLAGS -DVALGRIND" + CPPFLAGS="$CPPFLAGS -DVALGRIND" +else + echo -e "disabling valgrind memory checker workarounds" +fi + +dnl Cygwin requires that the stdc++ library is linked explicitly. +dnl GCC 3.3.x requires also the z, png and jpeg libraries. This is +dnl not true anymore since GCC 3.4.x. + +if test "$CYGWIN32" = yes; then + LIBS="$LIBS -L../nxcomp -lXcomp -lstdc++ -Wl,-e,_mainCRTStartup -ljpeg -lpng -lz" +else + LIBS="$LIBS -L../nxcomp -lXcomp" +fi + +dnl Find makedepend somewhere. + +AC_SUBST(MAKEDEPEND) +MAKEDEPEND="$(which makedepend)" + +# Try to desperately find makedepend. +# Set MAKEDEPEND to the shipped makedepend binary. This will not +# exist in nx-libs-lite, though, in which case MAKEDEPEND +# will stay empty. +if test -z "${MAKEDEPEND}"; then + if test -x "../nx-X11/config/makedepend/makedepend"; then + MAKEDEPEND="../nx-X11/config/makedepend/makedepend" + fi +fi + +AC_OUTPUT(Makefile) diff --git a/nxproxy/install-sh b/nxproxy/install-sh new file mode 100755 index 000000000..58719246f --- /dev/null +++ b/nxproxy/install-sh @@ -0,0 +1,238 @@ +#! /bin/sh +# +# install - install a program, script, or datafile +# This comes from X11R5. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# `make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. +# + + +# set DOITPROG to echo to test this script + +# Don't use :- since 4.3BSD and earlier shells don't like it. +doit="${DOITPROG-}" + + +# put in absolute paths if you don't have them in your path; or use env. vars. + +mvprog="${MVPROG-mv}" +cpprog="${CPPROG-cp}" +chmodprog="${CHMODPROG-chmod}" +chownprog="${CHOWNPROG-chown}" +chgrpprog="${CHGRPPROG-chgrp}" +stripprog="${STRIPPROG-strip}" +rmprog="${RMPROG-rm}" +mkdirprog="${MKDIRPROG-mkdir}" + +transformbasename="" +transform_arg="" +instcmd="$mvprog" +chmodcmd="$chmodprog 0755" +chowncmd="" +chgrpcmd="" +stripcmd="" +rmcmd="$rmprog -f" +mvcmd="$mvprog" +src="" +dst="" +dir_arg="" + +while [ x"$1" != x ]; do + case $1 in + -c) instcmd="$cpprog" + shift + continue;; + + -d) dir_arg=true + shift + continue;; + + -m) chmodcmd="$chmodprog $2" + shift + shift + continue;; + + -o) chowncmd="$chownprog $2" + shift + shift + continue;; + + -g) chgrpcmd="$chgrpprog $2" + shift + shift + continue;; + + -s) stripcmd="$stripprog" + shift + continue;; + + -t=*) transformarg=`echo $1 | sed 's/-t=//'` + shift + continue;; + + -b=*) transformbasename=`echo $1 | sed 's/-b=//'` + shift + continue;; + + *) if [ x"$src" = x ] + then + src=$1 + else + # this colon is to work around a 386BSD /bin/sh bug + : + dst=$1 + fi + shift + continue;; + esac +done + +if [ x"$src" = x ] +then + echo "install: no input file specified" + exit 1 +else + true +fi + +if [ x"$dir_arg" != x ]; then + dst=$src + src="" + + if [ -d $dst ]; then + instcmd=: + else + instcmd=mkdir + fi +else + +# Waiting for this to be detected by the "$instcmd $src $dsttmp" command +# might cause directories to be created, which would be especially bad +# if $src (and thus $dsttmp) contains '*'. + + if [ -f $src -o -d $src ] + then + true + else + echo "install: $src does not exist" + exit 1 + fi + + if [ x"$dst" = x ] + then + echo "install: no destination specified" + exit 1 + else + true + fi + +# If destination is a directory, append the input filename; if your system +# does not like double slashes in filenames, you may need to add some logic + + if [ -d $dst ] + then + dst="$dst"/`basename $src` + else + true + fi +fi + +## this sed command emulates the dirname command +dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` + +# Make sure that the destination directory exists. +# this part is taken from Noah Friedman's mkinstalldirs script + +# Skip lots of stat calls in the usual case. +if [ ! -d "$dstdir" ]; then +defaultIFS=' +' +IFS="${IFS-${defaultIFS}}" + +oIFS="${IFS}" +# Some sh's can't handle IFS=/ for some reason. +IFS='%' +set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` +IFS="${oIFS}" + +pathcomp='' + +while [ $# -ne 0 ] ; do + pathcomp="${pathcomp}${1}" + shift + + if [ ! -d "${pathcomp}" ] ; + then + $mkdirprog "${pathcomp}" + else + true + fi + + pathcomp="${pathcomp}/" +done +fi + +if [ x"$dir_arg" != x ] +then + $doit $instcmd $dst && + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi +else + +# If we're going to rename the final executable, determine the name now. + + if [ x"$transformarg" = x ] + then + dstfile=`basename $dst` + else + dstfile=`basename $dst $transformbasename | + sed $transformarg`$transformbasename + fi + +# don't allow the sed command to completely eliminate the filename + + if [ x"$dstfile" = x ] + then + dstfile=`basename $dst` + else + true + fi + +# Make a temp file name in the proper directory. + + dsttmp=$dstdir/#inst.$$# + +# Move or copy the file name to the temp name + + $doit $instcmd $src $dsttmp && + + trap "rm -f ${dsttmp}" 0 && + +# and set any options; do chmod last to preserve setuid bits + +# If any of these fail, we abort the whole thing. If we want to +# ignore errors from any of these, just make sure not to ignore +# errors from the above "$doit $instcmd $src $dsttmp" command. + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && + +# Now rename the file to the real destination. + + $doit $rmcmd -f $dstdir/$dstfile && + $doit $mvcmd $dsttmp $dstdir/$dstfile + +fi && + + +exit 0 diff --git a/nxproxy/man/nxproxy.1 b/nxproxy/man/nxproxy.1 new file mode 100644 index 000000000..afb5f69d4 --- /dev/null +++ b/nxproxy/man/nxproxy.1 @@ -0,0 +1,395 @@ +'\" -*- coding: utf-8 -*- +.if \n(.g .ds T< \\FC +.if \n(.g .ds T> \\F[\n[.fam]] +.de URL +\\$2 \(la\\$1\(ra\\$3 +.. +.if \n(.g .mso www.tmac +.TH nxproxy 1 "April 2017" "Version 3.6.x" "NX Proxy" +.SH NAME +nxproxy \- NX Proxy Tool +.SH SYNOPSIS +'nh +.fi +.ad l +\fBnxproxy\fR \fI[<options>] <host>:<port>\fR + +.SH DESCRIPTION +\fBnxproxy\fR is a tool that allows one to tunnel X sessions through +the NX compression library. \fBnxproxy\fR is a backend application +utilized by various client application (Remmina, X2Go Client, PyHoca-Gui, +Arctica Client, TheQVD Client, etc.). +.PP +.SH COMMAND LINE OPTIONS +.TP 8 +.B -C +Specify that nxproxy has to run on the 'X client' side, listening for +connections and impersonating an X server. +.TP 8 +.B -S +Specify that nxproxy has to run in 'X server' mode, thus forwarding the +connections to daemons running on the client. +.TP 8 +.B -h +Print this message. +.TP 8 +.B -v +Print version information. +.TP 8 +.B <host>:<port> +Put at the end, specifies the host and port of the listening proxy. + +.SH NX/NX DISPLAY OPTIONS +Multiple nx/nx options can be specified in the DISPLAY environment or on +the command line, by using the nx/nx,option=value notation. +.TP 8 +.B link=<string> +An indication of the link speed that is going to be used between the +proxies. Usually the compression and the other link parameters depend on +this setting. The value can be either 'modem', 'isdn', 'adsl', 'wan', 'lan', 'local' +or a bandwidth specification, like for example '56k', '1m', '100m', etc. + +.TP 8 +.B type=<string> +Type of session, for example 'windows', 'unix-kde'. 'unix-application', +etc. + +.TP 8 +.B display=<string> +Specify the real display where X connections have to be forwarded by the +proxy running on the client. + +.TP 8 +.B listen=<int> +Local port used for accepting the proxy connection. + +.TP 8 +.B loopback=<bool> +Bind to the loopback device only. + +.TP 8 +.B accept=<string> +Name or IP of host that can connect to the proxy. + +.TP 8 +.B connect=<string> +Name or IP of host that the proxy will connect to. + +.TP 8 +.B port=<int> +Remote port used for the connection. + +.TP 8 +.B retry=<int> +Number of connection atempts. + +.TP 8 +.B root=<string> +The root directory for the session. Usually is the C\-* or S\-* in the .nx +directory in the user's home, with '*' being the virtual display. + +.TP 8 +.B session=<string> +Name of the session file. The default is the name 'session' in the +session directory. + +.TP 8 +.B errors=<string> +Name of the log file used by the proxy. The default is the name 'errors' +in the session directory. + +.TP 8 +.B stats=<string> +Name of the file where are written the proxy statistics. The default is a +file 'stats' in the session directory. The proxy replaces the data in the +file whenever it receives a SIGUSR1 or SIGUSR2 signal: + +.I SIGUSR1: +Gives total statistics, i.e. statistics collected since the beginning of +the session. + +.I SIGUSR2: +Gives partial statistics, i.e. statistics collected since the last time +this signal was received. + +.TP 8 +.B cookie=<string> +Use the provided cookie for authenticating to the remote proxy. The same +cookie is used as the fake value used for the X authorization. The fake +cookie is replaced on the X server side with the real cookie to be used +for the display, so that the real cookie doesn't have to travel over the +net. When not using a proxy cookie, any host will be able to connect to +the proxy. See also the 'accept' parameter. + +.TP 8 +.B nodelay=<bool> +A boolean indicating if TCP_NODELAY has to be set on the proxy link. Old +Linux kernels had problems with handling TCP_NODELAY on PPP links. + +.TP 8 +.B policy=<bool> +Let or not the agent decide when it is the best time to flush the proxy +link. If set to 0, the proxy will flush any encoded data immediately. The +option has only effect on the X client side proxy. + +.TP 8 +.B render=<bool> +Enable or disable use of the RENDER extension. + +.TP 8 +.B taint=<bool> +Try to suppress trivial sources of X roundtrips by generating the reply +on the X client side. + +.TP 8 +.B delta=<bool> +Enable X differential compression. + +.TP 8 +.B data=<int> +Enable or disable the ZLIB data compression. It is possible to specify a +value between 0 and 9. Usually the value is chosen automatically based on +the requested link setting. + +.TP 8 +.B stream=<int> +Enable or disable the ZLIB stream compression. The value, between 0 and +9, is usually determined according to the requested link setting. Not +fully implemented in nx-X11 Agent, yet. + +.TP 8 +.B limit=<int> +Specify a bitrate limit allowed for this session. + +.TP 8 +.B memory=<int> +Trigger memory optimizations used to keep small the size of X buffers. +This is useful on embedded plat- forms, or where memory is scarce. + +.TP 8 +.B cache=<int> +Size of the in-memory X message cache. Setting the value to 0 will +disable the memory cache as well as the NX differential compression. + +.TP 8 +.B images=<int> +Size of the persistent image cache. + +.TP 8 +.B shseg=<int> +Enable the use of the MIT-SHM extension between the \fBnxproxy\fR and the +real X server. A value greater than 1 is assumed to be the size of +requested shared memory segment. By default, the size of the segment is +determined based on the size of the in-memory cache. + +.TP 8 +.B load=<bool> +Enable loading a persistent X message cache at the proxy startup. + +.TP 8 +.B save=<bool> +Enable saving a persistent X message cache at the end of session. + +.TP 8 +.B cups=<int> +Enable or disable forwarding of CUPS connections, by listening on the +optional port 'n'. + +.TP 8 +.B aux=<int> +Enable or disable forwarding of the auxiliary X channel used for +controlling the keyboard. The 'keybd=<int>' form is accepted for backward +compatibility. + +.TP 8 +.B smb=<int> +Enable or disable forwarding of SMB connections. The 'samba=<int>' form is +accepted for backward compatibility. + +.TP 8 +.B media=<int> +Enable forwarding of audio connections. + +.TP 8 +.B http=<int> +Enable forwarding of HTTP connections. + +.TP 8 +.B font=<int> +Enable forwarding of reversed connections to a font +server running on the NX server. + +.TP 8 +.B file=<int> +Enable forwarding of file transfer connections. + +.TP 8 +.B mask=<int> +Determine the distribution of channel ids between the proxies. By +default, channels whose ids are multiple of 8 (starting from 0) are +reserved for the NX client side. All the other channels can be allocated +by the nx-X11 Agent side. + +.TP 8 +.B timeout=t +Specify the keep-alive timeout used by proxies to determine if there is a +network problem preventing communication with the remote peer. A value of +0 disables the check. + +.TP 8 +.B cleanup=t +Specify the number of seconds the proxy has to wait at session shutdown +before closing all channels. The feature is used by the NX server to +ensure that services are disconnected before shutting down the link. + +.TP 8 +.B pack=<string> +Determine the method used to compress images. + +.TP 8 +.B product=<string> +The product id of the client or server. The value is ignored by the +proxy, but the client or server can provide it to facilitate the support. + +.TP 8 +.B core=<bool> +Enable production of core dumps when aborting the proxy connection. + +.TP 8 +.B options=<string> +Specify an additional file containing options that has to be merged with +option read from the command line or the environment. + +.TP 8 +.B kill=<int> +Add the given process to the list of daemons that must be terminated at +session shutdown. Multiple 'kill=<int>' options can be specified. The proxy +will send them a SIGTERM signal just before exiting. + +.TP 8 +.B strict=<bool> +Optimize for responsiveness, rather than for the best use of all the +available bandwidth. + +.TP 8 +.B encryption=<bool> +Should be set to 1 if the proxy is running as part of a program providing +encryption of the point to point communication. + +.TP 8 +.I These options are interpreted by the nx-NX Agent. They are ignored by the proxy. + + rootless=<bool> + geometry=<string> + resize=<bool> + fullscreen=<bool> + keyboard=<string> + clipboard=<int> + streaming=<int> + backingstore=<int> + composite=<int> + xinerama=<int> + shmem=<bool> + shpix=<bool> + kbtype=<string> + client=<string> + shadow=<int> + shadowuid=<int> + shadowmode=<string> + defer=<int> + tile=<string> + menu=<int> + sleep=<int> + +.SH NX ENVIRONMENT VARIABLES + +The \fBnxproxy\fR application (and also \fBnxagent\fR when using nxcomp +support) can be influenced by the following environment variables: + + +.TP 8 +.B NX_ROOT +The root NX directory is the place where the session directory and the +cache files are created. This is usually overridden by passing the 'root=' +option. By default, the root NX directory is assumed to be the +directory '.nx' in the user's home. + +.TP 8 +.B NX_SYSTEM +The directory where NX programs and libraries reside. If not set, the +value is assumed to be '/usr/NX'. Programs, libraries and data files are +respectedly searched in the 'bin', 'lib' and 'share' subdirectories. + +.TP 8 +.B NX_HOME +The NX user's home directory. If NX_ROOT is not set or invalid, the +user's NX directory is created here. + +.TP 8 +.B NX_TEMP +The directory where the X11 Unix Domain Sockets and all temporary files +are to be created. + +.TP 8 +.B NX_CLIENT +The full path to the <nxclient> executable. If the variable is not set, +the <nxclient> executable will be run assuming that the program is in the +system path. This can be useful on platforms like Windows and the MacOS X +where <nxclient> is located in a different directory compared to the +other programs, to make easier for the user to execute the program from +the shell. + +.TP 8 +.B NX_SLAVE_CMD +The full path to the slave channel handler. When the slave channel is +enabled, the agent will listen on a port and forward the connection to +the NX_SLAVE_CMD program. This can be used to implement agent/proxy +communication for applications such as serial port and USB forwarding. + +.SH SHELL ENVIRONMENT VARIABLES + +.TP 8 +.B HOME +The variable is checked in the case NX_HOME is not set, null or invalid. + +.TP 8 +.B TEMP +The variable is checked whenever the NX_TEMP directory is not set, null +or invalid. + +.TP 8 +.B PATH +The path where all executables are searched, except <nxclient>. If +NX_CLIENT is not set, also the client executable is searched in the +system path. + +.TP 8 +.B LD_LIBRARY_PATH +System-wide library search order. This should be set by the program +invoking the proxy. + +.TP 8 +.B DISPLAY +On the X server side, the DISPLAY variable indicates the location of the +X11 server. When nxcomp is used as a transport library, the DISPLAY may +represent a NX transport specification and options can passed in the form +nx/nx,option=value... + +.TP 8 +.B XAUTHORITY +This is the file containing the X11 authorization cookie. If not set, the +file is assumed to be in the user's home (either NX_HOME or HOME). + +.SH AUTHOR +The \fBnxproxy\fR application has originally been derived from a software +project called DXCP. The company NoMachine turned DXCP into nxcomp with +nxproxy as executable around nxcomp. +.PP +The current maintenance of \fBnxproxy\fR (major version 3) is coordinated +between various projects, mainly by The Arctica Project, TheQVD (Qindel +Group) and the X2Go Project. +.PP +This manual has been written by Mike Gabriel +<mike.gabriel@das\-netzwerkteam.de> for the X2Go project +(http://www.x2go.org) and later on improved for the Arctica Project +(https://arctica-project.org). diff --git a/nxproxy/mkinstalldirs b/nxproxy/mkinstalldirs new file mode 100755 index 000000000..936cf3407 --- /dev/null +++ b/nxproxy/mkinstalldirs @@ -0,0 +1,34 @@ +#! /bin/sh +# mkinstalldirs --- make directory hierarchy +# Author: Noah Friedman <friedman@prep.ai.mit.edu> +# Created: 1993-05-16 +# Last modified: 1995-03-05 +# Public domain + +errstatus=0 + +for file in ${1+"$@"} ; do + set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'` + shift + + pathcomp= + for d in ${1+"$@"} ; do + pathcomp="$pathcomp$d" + case "$pathcomp" in + -* ) pathcomp=./$pathcomp ;; + esac + + if test ! -d "$pathcomp"; then + echo "mkdir $pathcomp" 1>&2 + mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$? + fi + + if test ! -d "$pathcomp"; then + errstatus=$lasterr + fi + + pathcomp="$pathcomp/" + done +done + +exit $errstatus |