[general] ChangeLog updated;

AUTHORS

@@ -1,3 +1,3 @@
- * Alexander Vdolainen <avdolainen@gmail.com>
+ * Alexander Vdolainen <avdolainen@zoho.com>
  * Win32/64 porting: Eugene Tarasov <etr@askele.com>
  * Tests: Leonid E. 

COPYING

@@ -1,166 +1,502 @@
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+LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the library's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!

ChangeLog

@@ -7,6 +7,17 @@
 2015-10-21 Alexander Vdolainen <vdo@askele.com>
 	* Stable 0.3.0 renamed, sxmp
 
-Copyright 2013-2015 Askele, Inc.
-Copying and distribution of this file, with or without modification, are
-permitted provided the copyright notice and this notice are preserved.
+2016-07-01 Alexander Vdolainen <avdolainen@zoho.com>
+	* Stable 0.4.3 released
+	* Bug with passing "()" RPC fixed
+	* Bug with base64 decoding fixed
+	* Added check for certificates existing in a proper way
+	* Added -d daemonize option for examples
+	* Added ability to assign a custom log functions for sxhub_t
+
+2018-05-21 Alexander Vdolainen <avdolainen@zoho.com>
+	* Bugfix: accept/connect now works in a right way
+	* Bugfix: Server hub accept returning error fix
+	* License reverted to LGPL v2.1
+	* Build system small improvements
+	* Stable 0.4.4 released

INSTALL

@@ -1,8 +1,8 @@
 Installation Instructions
 *************************
 
-Copyright (C) 1994-1996, 1999-2002, 2004-2011 Free Software Foundation,
-Inc.
+   Copyright (C) 1994-1996, 1999-2002, 2004-2016 Free Software
+Foundation, Inc.
 
    Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
@@ -12,97 +12,96 @@ without warranty of any kind.
 Basic Installation
 ==================
 
-   Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package.  The following
-more-detailed instructions are generic; see the `README' file for
+   Briefly, the shell command './configure && make && make install'
+should configure, build, and install this package.  The following
+more-detailed instructions are generic; see the 'README' file for
 instructions specific to this package.  Some packages provide this
-`INSTALL' file but do not implement all of the features documented
+'INSTALL' file but do not implement all of the features documented
 below.  The lack of an optional feature in a given package is not
 necessarily a bug.  More recommendations for GNU packages can be found
 in *note Makefile Conventions: (standards)Makefile Conventions.
 
-   The `configure' shell script attempts to guess correct values for
+   The 'configure' shell script attempts to guess correct values for
 various system-dependent variables used during compilation.  It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions.  Finally, it creates a shell script `config.status' that
+those values to create a 'Makefile' in each directory of the package.
+It may also create one or more '.h' files containing system-dependent
+definitions.  Finally, it creates a shell script 'config.status' that
 you can run in the future to recreate the current configuration, and a
-file `config.log' containing compiler output (useful mainly for
-debugging `configure').
+file 'config.log' containing compiler output (useful mainly for
+debugging 'configure').
 
-   It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring.  Caching is
-disabled by default to prevent problems with accidental use of stale
-cache files.
+   It can also use an optional file (typically called 'config.cache' and
+enabled with '--cache-file=config.cache' or simply '-C') that saves the
+results of its tests to speed up reconfiguring.  Caching is disabled by
+default to prevent problems with accidental use of stale cache files.
 
    If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
+to figure out how 'configure' could check whether to do them, and mail
+diffs or instructions to the address given in the 'README' so they can
 be considered for the next release.  If you are using the cache, and at
-some point `config.cache' contains results you don't want to keep, you
+some point 'config.cache' contains results you don't want to keep, you
 may remove or edit it.
 
-   The file `configure.ac' (or `configure.in') is used to create
-`configure' by a program called `autoconf'.  You need `configure.ac' if
-you want to change it or regenerate `configure' using a newer version
-of `autoconf'.
+   The file 'configure.ac' (or 'configure.in') is used to create
+'configure' by a program called 'autoconf'.  You need 'configure.ac' if
+you want to change it or regenerate 'configure' using a newer version of
+'autoconf'.
 
    The simplest way to compile this package is:
 
-  1. `cd' to the directory containing the package's source code and type
-     `./configure' to configure the package for your system.
+  1. 'cd' to the directory containing the package's source code and type
+     './configure' to configure the package for your system.
 
-     Running `configure' might take a while.  While running, it prints
+     Running 'configure' might take a while.  While running, it prints
      some messages telling which features it is checking for.
 
-  2. Type `make' to compile the package.
+  2. Type 'make' to compile the package.
 
-  3. Optionally, type `make check' to run any self-tests that come with
+  3. Optionally, type 'make check' to run any self-tests that come with
      the package, generally using the just-built uninstalled binaries.
 
-  4. Type `make install' to install the programs and any data files and
+  4. Type 'make install' to install the programs and any data files and
      documentation.  When installing into a prefix owned by root, it is
      recommended that the package be configured and built as a regular
-     user, and only the `make install' phase executed with root
+     user, and only the 'make install' phase executed with root
      privileges.
 
-  5. Optionally, type `make installcheck' to repeat any self-tests, but
+  5. Optionally, type 'make installcheck' to repeat any self-tests, but
      this time using the binaries in their final installed location.
      This target does not install anything.  Running this target as a
-     regular user, particularly if the prior `make install' required
+     regular user, particularly if the prior 'make install' required
      root privileges, verifies that the installation completed
      correctly.
 
   6. You can remove the program binaries and object files from the
-     source code directory by typing `make clean'.  To also remove the
-     files that `configure' created (so you can compile the package for
-     a different kind of computer), type `make distclean'.  There is
-     also a `make maintainer-clean' target, but that is intended mainly
+     source code directory by typing 'make clean'.  To also remove the
+     files that 'configure' created (so you can compile the package for
+     a different kind of computer), type 'make distclean'.  There is
+     also a 'make maintainer-clean' target, but that is intended mainly
      for the package's developers.  If you use it, you may have to get
      all sorts of other programs in order to regenerate files that came
      with the distribution.
 
-  7. Often, you can also type `make uninstall' to remove the installed
+  7. Often, you can also type 'make uninstall' to remove the installed
      files again.  In practice, not all packages have tested that
      uninstallation works correctly, even though it is required by the
      GNU Coding Standards.
 
-  8. Some packages, particularly those that use Automake, provide `make
+  8. Some packages, particularly those that use Automake, provide 'make
      distcheck', which can by used by developers to test that all other
-     targets like `make install' and `make uninstall' work correctly.
+     targets like 'make install' and 'make uninstall' work correctly.
      This target is generally not run by end users.
 
 Compilers and Options
 =====================
 
    Some systems require unusual options for compilation or linking that
-the `configure' script does not know about.  Run `./configure --help'
+the 'configure' script does not know about.  Run './configure --help'
 for details on some of the pertinent environment variables.
 
-   You can give `configure' initial values for configuration parameters
-by setting variables in the command line or in the environment.  Here
-is an example:
+   You can give 'configure' initial values for configuration parameters
+by setting variables in the command line or in the environment.  Here is
+an example:
 
      ./configure CC=c99 CFLAGS=-g LIBS=-lposix
 
@@ -113,21 +112,21 @@ Compiling For Multiple Architectures
 
    You can compile the package for more than one kind of computer at the
 same time, by placing the object files for each architecture in their
-own directory.  To do this, you can use GNU `make'.  `cd' to the
+own directory.  To do this, you can use GNU 'make'.  'cd' to the
 directory where you want the object files and executables to go and run
-the `configure' script.  `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.  This
-is known as a "VPATH" build.
+the 'configure' script.  'configure' automatically checks for the source
+code in the directory that 'configure' is in and in '..'.  This is known
+as a "VPATH" build.
 
-   With a non-GNU `make', it is safer to compile the package for one
+   With a non-GNU 'make', it is safer to compile the package for one
 architecture at a time in the source code directory.  After you have
-installed the package for one architecture, use `make distclean' before
+installed the package for one architecture, use 'make distclean' before
 reconfiguring for another architecture.
 
    On MacOS X 10.5 and later systems, you can create libraries and
 executables that work on multiple system types--known as "fat" or
-"universal" binaries--by specifying multiple `-arch' options to the
-compiler but only a single `-arch' option to the preprocessor.  Like
+"universal" binaries--by specifying multiple '-arch' options to the
+compiler but only a single '-arch' option to the preprocessor.  Like
 this:
 
      ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
@@ -136,105 +135,104 @@ this:
 
    This is not guaranteed to produce working output in all cases, you
 may have to build one architecture at a time and combine the results
-using the `lipo' tool if you have problems.
+using the 'lipo' tool if you have problems.
 
 Installation Names
 ==================
 
-   By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc.  You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX', where PREFIX must be an
+   By default, 'make install' installs the package's commands under
+'/usr/local/bin', include files under '/usr/local/include', etc.  You
+can specify an installation prefix other than '/usr/local' by giving
+'configure' the option '--prefix=PREFIX', where PREFIX must be an
 absolute file name.
 
    You can specify separate installation prefixes for
 architecture-specific files and architecture-independent files.  If you
-pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+pass the option '--exec-prefix=PREFIX' to 'configure', the package uses
 PREFIX as the prefix for installing programs and libraries.
 Documentation and other data files still use the regular prefix.
 
    In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files.  Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.  In general, the
-default for these options is expressed in terms of `${prefix}', so that
-specifying just `--prefix' will affect all of the other directory
+options like '--bindir=DIR' to specify different values for particular
+kinds of files.  Run 'configure --help' for a list of the directories
+you can set and what kinds of files go in them.  In general, the default
+for these options is expressed in terms of '${prefix}', so that
+specifying just '--prefix' will affect all of the other directory
 specifications that were not explicitly provided.
 
    The most portable way to affect installation locations is to pass the
-correct locations to `configure'; however, many packages provide one or
+correct locations to 'configure'; however, many packages provide one or
 both of the following shortcuts of passing variable assignments to the
-`make install' command line to change installation locations without
+'make install' command line to change installation locations without
 having to reconfigure or recompile.
 
    The first method involves providing an override variable for each
-affected directory.  For example, `make install
+affected directory.  For example, 'make install
 prefix=/alternate/directory' will choose an alternate location for all
 directory configuration variables that were expressed in terms of
-`${prefix}'.  Any directories that were specified during `configure',
-but not in terms of `${prefix}', must each be overridden at install
-time for the entire installation to be relocated.  The approach of
-makefile variable overrides for each directory variable is required by
-the GNU Coding Standards, and ideally causes no recompilation.
-However, some platforms have known limitations with the semantics of
-shared libraries that end up requiring recompilation when using this
-method, particularly noticeable in packages that use GNU Libtool.
-
-   The second method involves providing the `DESTDIR' variable.  For
-example, `make install DESTDIR=/alternate/directory' will prepend
-`/alternate/directory' before all installation names.  The approach of
-`DESTDIR' overrides is not required by the GNU Coding Standards, and
+'${prefix}'.  Any directories that were specified during 'configure',
+but not in terms of '${prefix}', must each be overridden at install time
+for the entire installation to be relocated.  The approach of makefile
+variable overrides for each directory variable is required by the GNU
+Coding Standards, and ideally causes no recompilation.  However, some
+platforms have known limitations with the semantics of shared libraries
+that end up requiring recompilation when using this method, particularly
+noticeable in packages that use GNU Libtool.
+
+   The second method involves providing the 'DESTDIR' variable.  For
+example, 'make install DESTDIR=/alternate/directory' will prepend
+'/alternate/directory' before all installation names.  The approach of
+'DESTDIR' overrides is not required by the GNU Coding Standards, and
 does not work on platforms that have drive letters.  On the other hand,
 it does better at avoiding recompilation issues, and works well even
-when some directory options were not specified in terms of `${prefix}'
-at `configure' time.
+when some directory options were not specified in terms of '${prefix}'
+at 'configure' time.
 
 Optional Features
 =================
 
    If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-   Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System).  The
-`README' should mention any `--enable-' and `--with-' options that the
+with an extra prefix or suffix on their names by giving 'configure' the
+option '--program-prefix=PREFIX' or '--program-suffix=SUFFIX'.
+
+   Some packages pay attention to '--enable-FEATURE' options to
+'configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to '--with-PACKAGE' options, where PACKAGE
+is something like 'gnu-as' or 'x' (for the X Window System).  The
+'README' should mention any '--enable-' and '--with-' options that the
 package recognizes.
 
-   For packages that use the X Window System, `configure' can usually
+   For packages that use the X Window System, 'configure' can usually
 find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
+you can use the 'configure' options '--x-includes=DIR' and
+'--x-libraries=DIR' to specify their locations.
 
    Some packages offer the ability to configure how verbose the
-execution of `make' will be.  For these packages, running `./configure
+execution of 'make' will be.  For these packages, running './configure
 --enable-silent-rules' sets the default to minimal output, which can be
-overridden with `make V=1'; while running `./configure
+overridden with 'make V=1'; while running './configure
 --disable-silent-rules' sets the default to verbose, which can be
-overridden with `make V=0'.
+overridden with 'make V=0'.
 
 Particular systems
 ==================
 
-   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU
-CC is not installed, it is recommended to use the following options in
+   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU CC
+is not installed, it is recommended to use the following options in
 order to use an ANSI C compiler:
 
      ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
 
 and if that doesn't work, install pre-built binaries of GCC for HP-UX.
 
-   HP-UX `make' updates targets which have the same time stamps as
-their prerequisites, which makes it generally unusable when shipped
-generated files such as `configure' are involved.  Use GNU `make'
-instead.
+   HP-UX 'make' updates targets which have the same time stamps as their
+prerequisites, which makes it generally unusable when shipped generated
+files such as 'configure' are involved.  Use GNU 'make' instead.
 
    On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
-parse its `<wchar.h>' header file.  The option `-nodtk' can be used as
-a workaround.  If GNU CC is not installed, it is therefore recommended
-to try
+parse its '<wchar.h>' header file.  The option '-nodtk' can be used as a
+workaround.  If GNU CC is not installed, it is therefore recommended to
+try
 
      ./configure CC="cc"
 
@@ -242,26 +240,26 @@ and if that doesn't work, try
 
      ./configure CC="cc -nodtk"
 
-   On Solaris, don't put `/usr/ucb' early in your `PATH'.  This
+   On Solaris, don't put '/usr/ucb' early in your 'PATH'.  This
 directory contains several dysfunctional programs; working variants of
-these programs are available in `/usr/bin'.  So, if you need `/usr/ucb'
-in your `PATH', put it _after_ `/usr/bin'.
+these programs are available in '/usr/bin'.  So, if you need '/usr/ucb'
+in your 'PATH', put it _after_ '/usr/bin'.
 
-   On Haiku, software installed for all users goes in `/boot/common',
-not `/usr/local'.  It is recommended to use the following options:
+   On Haiku, software installed for all users goes in '/boot/common',
+not '/usr/local'.  It is recommended to use the following options:
 
      ./configure --prefix=/boot/common
 
 Specifying the System Type
 ==========================
 
-   There may be some features `configure' cannot figure out
+   There may be some features 'configure' cannot figure out
 automatically, but needs to determine by the type of machine the package
 will run on.  Usually, assuming the package is built to be run on the
-_same_ architectures, `configure' can figure that out, but if it prints
+_same_ architectures, 'configure' can figure that out, but if it prints
 a message saying it cannot guess the machine type, give it the
-`--build=TYPE' option.  TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name which has the form:
+'--build=TYPE' option.  TYPE can either be a short name for the system
+type, such as 'sun4', or a canonical name which has the form:
 
      CPU-COMPANY-SYSTEM
 
@@ -270,101 +268,101 @@ where SYSTEM can have one of these forms:
      OS
      KERNEL-OS
 
-   See the file `config.sub' for the possible values of each field.  If
-`config.sub' isn't included in this package, then this package doesn't
+   See the file 'config.sub' for the possible values of each field.  If
+'config.sub' isn't included in this package, then this package doesn't
 need to know the machine type.
 
    If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
+use the option '--target=TYPE' to select the type of system they will
 produce code for.
 
    If you want to _use_ a cross compiler, that generates code for a
 platform different from the build platform, you should specify the
 "host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
+eventually be run) with '--host=TYPE'.
 
 Sharing Defaults
 ================
 
-   If you want to set default values for `configure' scripts to share,
-you can create a site shell script called `config.site' that gives
-default values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists.  Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
+   If you want to set default values for 'configure' scripts to share,
+you can create a site shell script called 'config.site' that gives
+default values for variables like 'CC', 'cache_file', and 'prefix'.
+'configure' looks for 'PREFIX/share/config.site' if it exists, then
+'PREFIX/etc/config.site' if it exists.  Or, you can set the
+'CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all 'configure' scripts look for a site script.
 
 Defining Variables
 ==================
 
    Variables not defined in a site shell script can be set in the
-environment passed to `configure'.  However, some packages may run
+environment passed to 'configure'.  However, some packages may run
 configure again during the build, and the customized values of these
 variables may be lost.  In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'.  For example:
+them in the 'configure' command line, using 'VAR=value'.  For example:
 
      ./configure CC=/usr/local2/bin/gcc
 
-causes the specified `gcc' to be used as the C compiler (unless it is
+causes the specified 'gcc' to be used as the C compiler (unless it is
 overridden in the site shell script).
 
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf bug.  Until the bug is fixed you can use this workaround:
+Unfortunately, this technique does not work for 'CONFIG_SHELL' due to an
+Autoconf limitation.  Until the limitation is lifted, you can use this
+workaround:
 
-     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
+     CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash
 
-`configure' Invocation
+'configure' Invocation
 ======================
 
-   `configure' recognizes the following options to control how it
+   'configure' recognizes the following options to control how it
 operates.
 
-`--help'
-`-h'
-     Print a summary of all of the options to `configure', and exit.
+'--help'
+'-h'
+     Print a summary of all of the options to 'configure', and exit.
 
-`--help=short'
-`--help=recursive'
+'--help=short'
+'--help=recursive'
      Print a summary of the options unique to this package's
-     `configure', and exit.  The `short' variant lists options used
-     only in the top level, while the `recursive' variant lists options
-     also present in any nested packages.
+     'configure', and exit.  The 'short' variant lists options used only
+     in the top level, while the 'recursive' variant lists options also
+     present in any nested packages.
 
-`--version'
-`-V'
-     Print the version of Autoconf used to generate the `configure'
+'--version'
+'-V'
+     Print the version of Autoconf used to generate the 'configure'
      script, and exit.
 
-`--cache-file=FILE'
+'--cache-file=FILE'
      Enable the cache: use and save the results of the tests in FILE,
-     traditionally `config.cache'.  FILE defaults to `/dev/null' to
+     traditionally 'config.cache'.  FILE defaults to '/dev/null' to
      disable caching.
 
-`--config-cache'
-`-C'
-     Alias for `--cache-file=config.cache'.
+'--config-cache'
+'-C'
+     Alias for '--cache-file=config.cache'.
 
-`--quiet'
-`--silent'
-`-q'
+'--quiet'
+'--silent'
+'-q'
      Do not print messages saying which checks are being made.  To
-     suppress all normal output, redirect it to `/dev/null' (any error
+     suppress all normal output, redirect it to '/dev/null' (any error
      messages will still be shown).
 
-`--srcdir=DIR'
+'--srcdir=DIR'
      Look for the package's source code in directory DIR.  Usually
-     `configure' can determine that directory automatically.
+     'configure' can determine that directory automatically.
 
-`--prefix=DIR'
-     Use DIR as the installation prefix.  *note Installation Names::
-     for more details, including other options available for fine-tuning
-     the installation locations.
+'--prefix=DIR'
+     Use DIR as the installation prefix.  *note Installation Names:: for
+     more details, including other options available for fine-tuning the
+     installation locations.
 
-`--no-create'
-`-n'
+'--no-create'
+'-n'
      Run the configure checks, but stop before creating any output
      files.
 
-`configure' also accepts some other, not widely useful, options.  Run
-`configure --help' for more details.
-
+'configure' also accepts some other, not widely useful, options.  Run
+'configure --help' for more details.

VERSION

@@ -0,0 +1,3 @@
+0.4.4
+
+

autogen.sh

@@ -1,157 +1,9 @@
 #!/bin/sh
-# Run this to generate all the initial makefiles, etc.
 
-srcdir=`dirname $0`
-test -z "$srcdir" && srcdir=.
+echo "Generating configure files... may take a while."
 
-DIE=0
-
-if [ -n "$GNOME2_DIR" ]; then
-	ACLOCAL_FLAGS="-I $GNOME2_DIR/share/aclocal $ACLOCAL_FLAGS"
-	LD_LIBRARY_PATH="$GNOME2_DIR/lib:$LD_LIBRARY_PATH"
-	PATH="$GNOME2_DIR/bin:$PATH"
-	export PATH
-	export LD_LIBRARY_PATH
-fi
-
-(test -f $srcdir/configure.ac) || {
-    echo -n "**Error**: Directory "\`$srcdir\'" does not look like the"
-    echo " top-level package directory"
-    exit 1
-}
-
-(autoconf --version) < /dev/null > /dev/null 2>&1 || {
-  echo
-  echo "**Error**: You must have \`autoconf' installed."
-  echo "Download the appropriate package for your distribution,"
-  echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
-  DIE=1
-}
-
-(grep "^IT_PROG_INTLTOOL" $srcdir/configure.ac >/dev/null) && {
-  (intltoolize --version) < /dev/null > /dev/null 2>&1 || {
-    echo 
-    echo "**Error**: You must have \`intltool' installed."
-    echo "You can get it from:"
-    echo "  ftp://ftp.gnome.org/pub/GNOME/"
-    DIE=1
-  }
-}
-
-(grep "^AM_PROG_XML_I18N_TOOLS" $srcdir/configure.ac >/dev/null) && {
-  (xml-i18n-toolize --version) < /dev/null > /dev/null 2>&1 || {
-    echo
-    echo "**Error**: You must have \`xml-i18n-toolize' installed."
-    echo "You can get it from:"
-    echo "  ftp://ftp.gnome.org/pub/GNOME/"
-    DIE=1
-  }
-}
-
-(grep "^LT_INIT" $srcdir/configure.ac >/dev/null) && {
-  (libtool --version) < /dev/null > /dev/null 2>&1 || {
-    echo
-    echo "**Error**: You must have \`libtool' installed."
-    echo "You can get it from: ftp://ftp.gnu.org/pub/gnu/"
-    DIE=1
-  }
-}
-
-(grep "^AM_GLIB_GNU_GETTEXT" $srcdir/configure.ac >/dev/null) && {
-  (grep "sed.*POTFILES" $srcdir/configure.ac) > /dev/null || \
-  (glib-gettextize --version) < /dev/null > /dev/null 2>&1 || {
-    echo
-    echo "**Error**: You must have \`glib' installed."
-    echo "You can get it from: ftp://ftp.gtk.org/pub/gtk"
-    DIE=1
-  }
-}
-
-(automake --version) < /dev/null > /dev/null 2>&1 || {
-  echo
-  echo "**Error**: You must have \`automake' installed."
-  echo "You can get it from: ftp://ftp.gnu.org/pub/gnu/"
-  DIE=1
-  NO_AUTOMAKE=yes
-}
-
-
-# if no automake, don't bother testing for aclocal
-test -n "$NO_AUTOMAKE" || (aclocal --version) < /dev/null > /dev/null 2>&1 || {
-  echo
-  echo "**Error**: Missing \`aclocal'.  The version of \`automake'"
-  echo "installed doesn't appear recent enough."
-  echo "You can get automake from ftp://ftp.gnu.org/pub/gnu/"
-  DIE=1
-}
-
-if test "$DIE" -eq 1; then
-  exit 1
-fi
-
-if test -z "$*"; then
-  echo "**Warning**: I am going to run \`configure' with no arguments."
-  echo "If you wish to pass any to it, please specify them on the"
-  echo \`$0\'" command line."
-  echo
-fi
-
-case $CC in
-xlc )
-  am_opt=--include-deps;;
-esac
-
-for coin in `find $srcdir -path $srcdir/CVS -prune -o -name configure.ac -print`
-do 
-  dr=`dirname $coin`
-  if test -f $dr/NO-AUTO-GEN; then
-    echo skipping $dr -- flagged as no auto-gen
-  else
-    echo processing $dr
-    ( cd $dr
-
-      aclocalinclude="$ACLOCAL_FLAGS"
-
-      if grep "^AM_GLIB_GNU_GETTEXT" configure.ac >/dev/null; then
-	echo "Creating $dr/aclocal.m4 ..."
-	test -r $dr/aclocal.m4 || touch $dr/aclocal.m4
-	echo "Running glib-gettextize...  Ignore non-fatal messages."
-	echo "no" | glib-gettextize --force --copy
-	echo "Making $dr/aclocal.m4 writable ..."
-	test -r $dr/aclocal.m4 && chmod u+w $dr/aclocal.m4
-      fi
-      if grep "^IT_PROG_INTLTOOL" configure.ac >/dev/null; then
-        echo "Running intltoolize..."
-	intltoolize --copy --force --automake
-      fi
-      if grep "^AM_PROG_XML_I18N_TOOLS" configure.ac >/dev/null; then
-        echo "Running xml-i18n-toolize..."
-	xml-i18n-toolize --copy --force --automake
-      fi
-      if grep "^LT_INIT" configure.ac >/dev/null; then
-	if test -z "$NO_LIBTOOLIZE" ; then 
-	  echo "Running libtoolize..."
-	  libtoolize --force --copy
-	fi
-      fi
-      echo "Running aclocal $aclocalinclude ..."
-      aclocal $aclocalinclude
-      if grep "^A[CM]_CONFIG_HEADER" configure.ac >/dev/null; then
-	echo "Running autoheader..."
-	autoheader
-      fi
-      echo "Running automake --gnu $am_opt ..."
-      automake --add-missing --copy --gnu $am_opt
-      echo "Running autoconf ..."
-      autoconf
-    )
-  fi
-done
-
-if test x$NOCONFIGURE = x; then
-  echo Running $srcdir/configure "$@" ...
-  $srcdir/configure "$@" \
-  && echo Now type \`make\' to compile. || exit 1
-else
-  echo Skipping configure process.
-fi
+autoreconf --install --force && \
+  echo "Preparing was successful if there was no error messages above." && \
+  echo "Now type:" && \
+  echo "  ./configure && make"  && \
+  echo "Run './configure --help' for more information"

configure.ac

@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-AC_INIT(libsxmp, 0.4.3)
+AC_INIT(libsxmp, m4_esyscmd([tr -d '\n' < VERSION]))
 
 AC_CONFIG_HEADERS([config.h])
 

examples/filelistc.c

@@ -104,6 +104,42 @@ static int __rpcscheck_onclient(sxlink_t *l, int ch_tid, char *description)
   return SXE_SUCCESS;
 }
 
+/*
+ * This function might be used to output log in any format you like.
+ * In this case it is a prefix with a message type before a message body.
+ */
+static int __log(const sxlogtype_t type, const char *fmt, ...)
+{
+  int r = 0;
+
+  switch(type) {
+    case SXCRITICAL_LOG:
+      r += fprintf(stderr, "[CRITICAL] ");
+      break;
+    case SXERROR_LOG:
+      r += fprintf(stderr, "[ERROR] ");
+      break;
+    case SXWARNING_LOG:
+      r += fprintf(stderr, "[WARNING] ");
+      break;
+    case SXINFO_LOG:
+      r += fprintf(stderr, "[INFO] ");
+      break;
+    case SXDEBUG_LOG:
+      r += fprintf(stderr, "[DEBUG] ");
+      break;
+    default:
+      r += fprintf(stderr, "[UNKNOWN] ");
+      break;
+  }
+
+  va_list arglist;
+  va_start(arglist, fmt);
+  r += vfprintf(stderr, fmt, arglist);
+  va_end(arglist);
+  return r;
+}
+
 /* supplemetary functions to make code more readable */
 static int __close_dir_stream(sxchnl_t *c, int sid)
 {
@@ -400,6 +436,9 @@ int main(int argc, char **argv)
   lhub = sxhub_create(); /* create sxhub for link creation */
   if(!lhub) return ENOMEM;
 
+  /* set sxhub log function */
+  sxhub_set_logops(lhub, __log);
+
   i = sxhub_setsslserts(lhub, rootca, cert, cert);
   if(i) return i;
 

examples/filelistd.c

@@ -151,6 +151,31 @@ static int __secure_check(sxlink_t *l)
   return SXE_SUCCESS;
 }
 
+/*
+ * This function might be used to output log in any format you like.
+ * In this case it is a prefix with date and time marks before a message body.
+ */
+static int __log(const sxlogtype_t type, const char *fmt, ...)
+{
+  int r = 0;
+
+  time_t timer;
+  char buffer[26];
+  struct tm* tm_info;
+
+  time(&timer);
+  tm_info = localtime(&timer);
+
+  strftime(buffer, 26, "%Y/%m/%d %H:%M:%S", tm_info);
+  r += fprintf(stderr, "[%s] ", buffer);
+
+  va_list arglist;
+  va_start(arglist, fmt);
+  r += vfprintf(stderr, fmt, arglist);
+  va_end(arglist);
+  return r;
+}
+
 /* Our RPC functions it used to get a message and reply */
 static int __dir_open(void *m, sexp_t *sx)
 {
@@ -300,9 +325,13 @@ int main(int argc, char **argv)
   sxhub_t *sxmphub = sxhub_create();
   int port = DEFAULT_PORT;
   int opt;
+  int is_daemon = 0;
 
-  while((opt = getopt(argc, argv, "p:r:u:")) != -1) {
+  while((opt = getopt(argc, argv, "dp:r:u:")) != -1) {
     switch(opt) {
+    case 'd':
+      is_daemon = 1;
+      break;
     case 'p':
       port = atoi(optarg);
       break;
@@ -314,7 +343,7 @@ int main(int argc, char **argv)
       break;
     default:
       fprintf(stderr, "usage: %s [-p <PORTNUM>] -r <PATH to Root CA> -u <PATH"
-              " to SSL certificate>\n", argv[0]);
+              " to SSL certificate> [-d]\n", argv[0]);
       return EINVAL;
     }
   }
@@ -329,6 +358,12 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* become daemon if it's necessary */
+  if (is_daemon && (opt = daemonize())) {
+    fprintf(stderr, "daemonize() failed (%d).\n Failure.\n", opt);
+    return EINVAL;
+  }
+
   sxmp_init();
 
   /* all is fine let's init connection subsystem */
@@ -336,6 +371,10 @@ int main(int argc, char **argv)
     fprintf(stderr, "Subsystem init failed: %d\n", opt);
     return 2;
   }
+
+  /* set sxhub log function */
+  sxhub_set_logops(sxmphub, __log);
+
   /* set working certificates */
   opt = sxhub_setsslserts(sxmphub, rootca, cert, cert);
   if(opt) {

examples/helpers.c

@@ -21,9 +21,9 @@
  *
  */
 
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <dirent.h>
-#define __USE_GNU
 #include <stdlib.h>
 #include <stdarg.h>
 #include <sys/types.h>
@@ -37,6 +37,8 @@
 #include <stdint.h>
 #include <errno.h>
 #include <string.h>
+#include <fcntl.h>
+#include <syslog.h>
 
 int openlistener_socket(int port)
 {
@@ -115,3 +117,80 @@ int normalize_path(char *path)
 
   return 0;
 }
+
+/* syslog stuff */
+
+static size_t writer(void *cookie, char const *data, size_t len)
+{
+  (void)cookie;
+  syslog(LOG_DEBUG, "%.*s", (int)len, data);
+  return len;
+}
+static int noop(void) { return 0; }
+
+static cookie_io_functions_t log_fns = {
+  (void*) noop, (void*) writer, (void*) noop, (void*) noop
+};
+
+void tosyslog(FILE **pfp)
+{
+  setvbuf(*pfp = fopencookie(NULL, "w", log_fns), NULL, _IOLBF, 0);
+}
+
+/* daemonization stuff */
+
+#define DM_MAX_CLOSE 8192
+
+int daemonize(void)
+{
+  pid_t pid;
+
+  /* fork */
+  pid = fork();
+  if (pid == -1) {
+    perror("fork() failed");
+    return EFAULT;
+  }
+  else if (pid != 0) {
+    exit(EXIT_SUCCESS);
+  }
+
+  /* create new session and progress group */
+  if (setsid() == -1) {
+    perror("setsid() failed");
+    return EFAULT;
+  }
+
+  /* set the working directory to the root directory */
+  if (chdir("/") == -1) {
+    perror("chdir() failed");
+    return EFAULT;
+  }
+
+  /* close all open files */
+  int fd;
+  int maxfd = sysconf(_SC_OPEN_MAX);
+  if (maxfd == -1)
+    maxfd = DM_MAX_CLOSE;   /* if this limit is indeterminate, take a guess */
+  for (fd = 0; fd < maxfd; fd++)
+    close(fd);
+
+  /* reopen standard fd's /dev/null */
+  close(STDIN_FILENO);
+  fd = open("/dev/null", O_RDWR);
+  if (fd != STDIN_FILENO) {           /* fd should be 0 */
+    return EBADFD;
+  }
+  if (dup2(STDIN_FILENO, STDOUT_FILENO) != STDOUT_FILENO) {
+    return EBADFD;
+  }
+  if (dup2(STDIN_FILENO, STDERR_FILENO) != STDERR_FILENO) {
+    return EBADFD;
+  }
+
+  /* redirect output to syslog as well */
+  tosyslog(&stdout);
+  tosyslog(&stderr);
+
+  return 0;
+}

examples/helpers.h

@@ -36,4 +36,6 @@ static inline void version_print(FILE *fso)
 }
 #endif
 
+int daemonize(void);
+
 #endif /* __SXMP_EXAMPLES_HELPERS_H__ */

examples/smpfd.c

@@ -233,7 +233,8 @@ static void __help_print(FILE *fso, const char *fmtname)
   /* usage options */
   fprintf(fso, "Usage:\n");
   fprintf(fso, "\t%s -r | --root-x509 <path> -u | --master-x509 <path> "
-          " [-p | --listen-port <port>] [-R | --root-dir <directory>]\n", fmtname);
+          " [-p | --listen-port <port>] [-R | --root-dir <directory>] "
+          " [-d | --daemonize]\n", fmtname);
 
   /* defaults */
   fprintf(fso, "\t%s -h | --help\n", fmtname);
@@ -249,6 +250,7 @@ static void __help_print(FILE *fso, const char *fmtname)
           "-p | --listen-port <port>", DEFAULT_PORT);
   fprintf(fso, "\t%-33s Remote directory becoming root for user [default: %s].\n",
           "-R | --root-dir <directory>", DEFAULT_ROOT_DIR);
+  fprintf(fso, "\t%-33s Work as a daemon.\n", "-d | --daemonize");
   fprintf(fso, "\t%-33s Show help screen.\n", "-h | --help");
   fprintf(fso, "\t%-33s Print version information.\n", "-v | --version");
   return;
@@ -511,6 +513,7 @@ int main(int argc, char **argv)
   sxhub_t *sxmphub = sxhub_create();
   int port = DEFAULT_PORT;
   int opt;
+  int is_daemon = 0;
 
   while(1) {
     int option_index = 0;
@@ -523,10 +526,11 @@ int main(int argc, char **argv)
       {"master-x509", required_argument, NULL, 'm'},
       {"root-dir", required_argument, NULL, 'R'},
       {"listen-port", required_argument, NULL, 'p'},
+      {"daemonize", required_argument, NULL, 'd'},
       { NULL, 0, NULL, 0 },
     };
 
-    if((opt = getopt_long(argc, argv, "hvr:m:R:p:", long_options,
+    if((opt = getopt_long(argc, argv, "dhvr:m:R:p:", long_options,
                           &option_index)) == -1) break;
 
     switch(opt) {
@@ -550,6 +554,9 @@ int main(int argc, char **argv)
     case 'R':
       root_dir = strdup(optarg);
       break;
+    case 'd':
+      is_daemon = 1;
+      break;
     }
   }
 
@@ -565,6 +572,12 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* become daemon if it's necessary */
+  if (is_daemon && (opt = daemonize())) {
+    fprintf(stderr, "daemonize() failed (%d).\n Failure.\n", opt);
+    return EINVAL;
+  }
+
   sxmp_init();
 
   /* all is fine let's init connection subsystem */

examples/streamfld.c

@@ -235,7 +235,7 @@ static void __help_print(FILE *fso, const char *fmtname)
   /* usage options */
   fprintf(fso, "Usage:\n");
   fprintf(fso, "\t%s -r | --root-x509 <path> -u | --master-x509 <path> "
-          " [-p | --listen-port <port>]\n", fmtname);
+          " [-p | --listen-port <port>]  [-d | --daemonize]\n", fmtname);
 
   /* defaults */
   fprintf(fso, "\t%s -h | --help\n", fmtname);
@@ -249,6 +249,7 @@ static void __help_print(FILE *fso, const char *fmtname)
           "-m | --master-x509 <path>");
   fprintf(fso, "\t%-33s Remote host listening port number [default: %d].\n",
           "-p | --listen-port <port>", DEFAULT_PORT);
+  fprintf(fso, "\t%-33s Work as a daemon.\n", "-d | --daemonize");
   fprintf(fso, "\t%-33s Show help screen.\n", "-h | --help");
   fprintf(fso, "\t%-33s Print version information.\n", "-v | --version");
   return;
@@ -260,6 +261,7 @@ int main(int argc, char **argv)
   sxhub_t *sxmphub = sxhub_create();
   int port = DEFAULT_PORT;
   int opt;
+  int is_daemon = 0;
 
   while(1) {
     int option_index = 0;
@@ -271,10 +273,11 @@ int main(int argc, char **argv)
       {"root-x509", required_argument, NULL, 'r'},
       {"master-x509", required_argument, NULL, 'm'},
       {"listen-port", required_argument, NULL, 'p'},
+      {"daemonize", required_argument, NULL, 'd'},
       { NULL, 0, NULL, 0 },
     };
 
-    if((opt = getopt_long(argc, argv, "hvr:m:p:", long_options,
+    if((opt = getopt_long(argc, argv, "dhvr:m:p:", long_options,
                           &option_index)) == -1) break;
 
     switch(opt) {
@@ -295,6 +298,9 @@ int main(int argc, char **argv)
     case 'p':
       port = atoi(optarg);
       break;
+    case 'd':
+      is_daemon = 1;
+      break;
     }
   }
 
@@ -310,6 +316,12 @@ int main(int argc, char **argv)
     return EINVAL;
   }
 
+  /* become daemon if it's necessary */
+  if (is_daemon && (opt = daemonize())) {
+    fprintf(stderr, "daemonize() failed (%d).\n Failure.\n", opt);
+    return EINVAL;
+  }
+
   sxmp_init();
 
   /* all is fine let's init connection subsystem */

include/sxmp/sxmp.h

@@ -10,7 +10,7 @@
  *
  * libsxmp is free software: you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation, either version 3 of the License, or
+ * by the Free Software Foundation, either version 2.1 of the License, or
  * (at your option) any later version.
  *
  * libsxmp is distributed in the hope that it will be useful, but
@@ -227,6 +227,14 @@ struct sxstream_ops {
   };
 };
 
+typedef enum {
+  SXCRITICAL_LOG = 0,
+  SXERROR_LOG,
+  SXWARNING_LOG,
+  SXINFO_LOG,
+  SXDEBUG_LOG,
+} sxlogtype_t;
+
 /**
  * \brief Hub subsystem structure.
  *
@@ -251,6 +259,7 @@ typedef struct __sxhub_type {
                                                           * during setting up a typed channel */
   void (*on_destroy)(sxlink_t *); /** < callback on connection destroy  */
   void (*on_pulse)(sxlink_t *, sexp_t *);  /** < callback on pulse emit */
+  int (*log)(const sxlogtype_t, const char *, ...); /** < this function is used to output logs with user way */
   SSL_CTX *ctx; /** < SSL context */
   void *priv;
 } sxhub_t;
@@ -263,6 +272,12 @@ typedef struct __sxhub_type {
 #define sxhub_set_onpulse(c, f)  (c)->on_pulse = (f)
 #define sxhub_set_priv(c, p)  (c)->priv = (p)
 #define sxhub_get_priv(c)  (c)->priv
+#define sxhub_set_logops(c, f)  (c)->log = (f)
+
+/* this macro is used to make calling sxhub log function easier */
+#define sxlink_log(c, type, fmt, ...)                                          \
+  (c)->hub ? (c)->hub->log((type), (fmt), ## __VA_ARGS__) :                    \
+  fprintf(stderr, (fmt), ## __VA_ARGS__);
 
 typedef struct __rpc_typed_list_type {
   int type_id;
@@ -437,16 +452,16 @@ int sxmp_rpclist_add_function(usrtc_t *tree, int type, const char *fu_name,
 
 int sxmp_rpclist_filter(usrtc_t *source, usrtc_t **dest, int flag, int *filter);
 
-  /* generic sxstream list functions */
-  list_head_t *sxstream_generic_slist_alloc(void);
-  void sxstream_generic_slist_free(list_head_t *list);
-  int sxstream_generic_slist_additem(list_head_t *list, const char *value);
+/* generic sxstream list functions */
+list_head_t *sxstream_generic_slist_alloc(void);
+void sxstream_generic_slist_free(list_head_t *list);
+int sxstream_generic_slist_additem(list_head_t *list, const char *value);
 
-  void sxstream_generic_named_free(list_head_t *list);
-  int sxstream_generic_nmlist_additem(list_head_t *list, const char *name,
+void sxstream_generic_named_free(list_head_t *list);
+int sxstream_generic_nmlist_additem(list_head_t *list, const char *name,
                                     int order);
-  const char *sxstream_generic_named_lookupname(list_head_t *list, int order);
-  int sxstream_generic_named_lookuporder(list_head_t *list, const char *name);
+const char *sxstream_generic_named_lookupname(list_head_t *list, int order);
+int sxstream_generic_named_lookuporder(list_head_t *list, const char *name);
 
 #ifdef __cplusplus
 }

lib/base64.c

@@ -21,6 +21,7 @@
 
 #include <stdint.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/types.h>
 
 #include <sxmp/base64.h>
@@ -35,16 +36,29 @@ static inline void encodeblock(unsigned char *in, unsigned char *out, int len)
   out[3] = (unsigned char) (len > 2 ? b64[ (int)(in[2] & 0x3f) ] : '=');
 }
 
+static inline char __block(char b)
+{
+  const char *j = strchr(b64, b);
+
+  if(j) return j - b64;
+  else return 0;
+}
+
 static inline void decodeblock(unsigned char *in, unsigned char *out)
 {
-  out[0] = (unsigned char) (in[0] << 2 | in[1] >> 4);
-  out[1] = (unsigned char) (in[1] << 4 | in[2] >> 2);
-  out[2] = (unsigned char) (((in[2] << 6) & 0xc0) | in[3]);
+  char a = __block(in[0]);
+  char b = __block(in[1]);
+  char c = __block(in[2]);
+  char d = __block(in[3]);
+
+  out[0] = (unsigned char) (a << 2 | b >> 4);
+  out[1] = (unsigned char) (b << 4 | c >> 2);
+  out[2] = (unsigned char) (((c << 6) & 0xc0) | d);
 }
 
 size_t sx_rawlen2b64len(size_t raw_length)
 {
-  return 4 * ((raw_length + 2) / 3);
+  return (size_t)(((4 * raw_length / 3) + 3) & ~3);
 }
 
 size_t sx_b64encode_in(const char *data, char *bdata, size_t data_len)
@@ -72,6 +86,7 @@ size_t sx_b64encode_in(const char *data, char *bdata, size_t data_len)
         } else ib[i] = (unsigned char)0;
       }
       encodeblock(ib, (unsigned char *)bdata + n, len);
+      break;
     }
   }
 

lib/hub.c

@@ -524,6 +524,16 @@ static long __cmp_cstr(const void *a, const void *b)
   return (long)strcmp((const char *)a, (const char *)b);
 }
 
+static int __sxhub_log_dummy(const sxlogtype_t type, const char *fmt, ...)
+{
+  int r;
+  va_list arglist;
+  va_start(arglist, fmt);
+  r = vfprintf(stderr, fmt, arglist);
+  va_end(arglist);
+  return r;
+}
+
 int sxhub_init(sxhub_t *ssys)
 {
   int r = 0;
@@ -573,6 +583,9 @@ int sxhub_init(sxhub_t *ssys)
     }
   }
 
+  /* set function pointers to default implementation */
+  sxhub_set_logops(ssys, __sxhub_log_dummy);
+
   return 0;
 
  __lfini:
@@ -638,16 +651,49 @@ sxhub_t *sxhub_create(void)
 int sxhub_setsslserts(sxhub_t *ssys, const char *rootca,
                             const char *certpem, const char *certkey)
 {
-  int r = ENOMEM;
-
-  if(!ssys) return EINVAL;
-  /* simply copying */
-  if(!(ssys->rootca = strdup(rootca))) return ENOMEM;
-  if(!(ssys->certkey = strdup(certkey)))     goto __fail;
-  if(!(ssys->certpem = strdup(certpem)))     goto __fail;
+  if (!ssys || !rootca || !certpem || !certkey)
+    return EINVAL;
+
+  /* check on existence of certificate files */
+  if (access(rootca, R_OK) == -1) {
+    ssys->log(SXERROR_LOG, "Unable to read rootca file '%s': %s\n",
+              rootca, sys_errlist[errno]);
+    return ENOENT;
+  }
+  if (access(certpem, R_OK) == -1) {
+    ssys->log(SXERROR_LOG, "Unable to read certpem file '%s': %s\n",
+              certpem, sys_errlist[errno]);
+    return ENOENT;
+  }
+  if (access(certkey, R_OK) == -1) {
+    ssys->log(SXERROR_LOG, "Unable to read certkey file '%s': %s\n",
+              certkey, sys_errlist[errno]);
+    return ENOENT;
+  }
+
+  /* obtain full paths of certificate files */
+  int r;
+  if (NULL == (ssys->rootca = realpath(rootca, NULL))) {
+    ssys->log(SXERROR_LOG, "Unable to obtain the full path of '%s': %s\n",
+              rootca, sys_errlist[errno]);
+    if (errno == ENOMEM) r = errno;
+    goto __fail;
+  }
+  if (NULL == (ssys->certpem = realpath(certpem, NULL))) {
+    ssys->log(SXERROR_LOG, "Unable to obtain the full path of '%s': %s\n",
+              certpem, sys_errlist[errno]);
+    if (errno == ENOMEM) r = errno;
+    goto __fail;
+  }
+  if (NULL == (ssys->certkey = realpath(certkey, NULL))) {
+    ssys->log(SXERROR_LOG, "Unable to obtain the full path of '%s': %s\n",
+              certkey, sys_errlist[errno]);
+    if (errno == ENOMEM) r = errno;
+    goto __fail;
+  }
 
-  r = 0;
   return 0;
+
  __fail:
   if(ssys->rootca) free(ssys->rootca);
   if(ssys->certkey) free(ssys->certkey);
@@ -724,7 +770,8 @@ static int __verify_certcall(int preverify_ok, X509_STORE_CTX *ctx)
   /* ok, now we're on top of SSL (depth == 0) certs chain,
    * and we can validate client certificate */
   if(!depth) {
-    link->pctx->certid = ASN1_INTEGER_get((const ASN1_INTEGER *)X509_get_serialNumber(ctx->current_cert));
+    link->pctx->certid =
+      ASN1_INTEGER_get((const ASN1_INTEGER *)X509_get_serialNumber(ctx->current_cert));
     /* now we're need to check the ssl cert */
     if(hub->validate_sslpem) {
       if(hub->validate_sslpem(link)) return 0;
@@ -763,7 +810,9 @@ int _sxhub_settls_ctx(sxhub_t *hub, const char *crtfile)
 
 int _sxhub_settls_ctx_s(sxhub_t *hub)
 {
-  if(hub->ctx) return SXE_SUCCESS;
+  int r = SXE_SUCCESS;
+
+  if(hub->ctx) return r;
 
   /* init SSL certificates and context */
   if(!(hub->ctx = SSL_CTX_new(TLSv1_2_server_method()))) return SXE_ENOMEM;
@@ -782,11 +831,23 @@ int _sxhub_settls_ctx_s(sxhub_t *hub)
   SSL_CTX_load_verify_locations(hub->ctx, hub->rootca, NULL);
 
   /* set the local certificate from CertFile */
-  if(SSL_CTX_use_certificate_file(hub->ctx, hub->certpem, SSL_FILETYPE_PEM) <= 0) return SXE_ESSL;
+  if(SSL_CTX_use_certificate_file(hub->ctx, hub->certpem, SSL_FILETYPE_PEM) <= 0) {
+    r = SXE_ESSL;
+    goto __finish;
+  }
   /* set the private key from KeyFile (may be the same as CertFile) */
-  if(SSL_CTX_use_PrivateKey_file(hub->ctx, hub->certpem, SSL_FILETYPE_PEM) <= 0) return SXE_ESSL;
+  if(SSL_CTX_use_PrivateKey_file(hub->ctx, hub->certkey, SSL_FILETYPE_PEM) <= 0) {
+    r = SXE_ESSL;
+    goto __finish;
+  }
   /* verify private key */
-  if (!SSL_CTX_check_private_key(hub->ctx)) return SXE_ESSL;
+  if (!SSL_CTX_check_private_key(hub->ctx)) r = SXE_ESSL;
 
-  return SXE_SUCCESS;
+ __finish:
+  if(r != SXE_SUCCESS) {
+    SSL_CTX_free(hub->ctx);
+    hub->ctx = NULL;
+  }
+
+  return r;
 }

lib/sxmplv2.c

@@ -10,7 +10,7 @@
  *
  * libsxmp is free software: you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation, either version 3 of the License, or
+ * by the Free Software Foundation, either version 2.1 of the License, or
  * (at your option) any later version.
  *
  * libsxmp is distributed in the hope that it will be useful, but
@@ -84,6 +84,108 @@ int __resolvehost(const char *hostname, char *buf, int buf_len,
 }
 #endif
 
+/* connection helper, since for accept and connect are the same sets of ops
+ * using defines here ... ugly again, btw works.
+ */
+
+#define SSLX_ACCEPT   0
+#define SSLX_CONNECT  1
+
+static int __conn_negotiate(sxlink_t *co, int way)
+{
+  int rfd = SSL_get_fd(co->ssl), r;
+  fd_set readset, writeset;
+  int read_blocked = 0, read_blocked_on_write = 0;
+  char em[3];
+
+  memset(em, 0, sizeof(char)*3);
+  switch(way) {
+  case SSLX_ACCEPT: strcpy(em, "AC"); break;
+  case SSLX_CONNECT: strcpy(em, "CO"); break;
+  default:
+    sxlink_log(co, SXERROR_LOG, "[sxmplv2] Negotiate way (accept?connect?) is invalid.\n");
+    return -1;
+    break;
+  }
+
+ __retry:
+
+  do {
+  __try_again:
+    ERR_clear_error();
+    if(way == SSLX_ACCEPT) r = SSL_accept(co->ssl);
+    else r = SSL_connect(co->ssl);
+    switch(SSL_get_error (co->ssl, r)) {
+    case SSL_ERROR_NONE:
+      return r;
+      break;
+    case SSL_ERROR_WANT_READ:
+      /* get prepare to select */
+      read_blocked = 1;
+      break;
+    case SSL_ERROR_WANT_WRITE: /* here we blocked on write */
+      read_blocked_on_write = 1;
+      break;
+    case SSL_ERROR_SYSCALL:
+      if(errno == EAGAIN || errno == EINTR) goto __try_again;
+      else {
+        sxlink_log(co, SXERROR_LOG, "[sxmplv2] (%s)SSL syscall error.\n", em);
+        goto __close_conn;
+      }
+      break;
+    case SSL_ERROR_SSL:
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (%s)SSL error occured:%s. Connection will be closed.\n",
+                 em, ERR_error_string(ERR_get_error(), NULL));
+      goto __close_conn;
+      break;
+    case SSL_ERROR_ZERO_RETURN:
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (%s)SSL connection is cleary closed.\n", em);
+    default:
+    __close_conn:
+      ERR_free_strings();
+      co->flags |= SXMP_CLOSED;
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (%s)Unknown error on %s (errno = %d)\n",
+                 em, co->uuid, errno);
+      ERR_remove_state(0);
+      return -1;
+    }
+  } while(SSL_pending(co->ssl) && !read_blocked);
+
+ __select_retry:
+
+  if(read_blocked) {
+    FD_ZERO(&readset);
+    FD_SET(rfd, &readset);
+    /* waits until something will be ready to read */
+    r = select(rfd + 1, &readset, NULL, NULL, NULL);
+    if(r < 0) {
+      if(errno == EINTR || errno == EAGAIN) goto __select_retry;
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (%s)Select (%d) on %s\n", em, errno, co->uuid);
+      ERR_remove_state(0);
+      return -1;
+    }
+    if(!r) {
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (%s)Nothing to wait for\n", em);
+      ERR_remove_state(0);
+      return 0;
+    }
+    read_blocked = 0;
+    if(r && FD_ISSET(rfd, &readset)) goto __retry; /* try to read again */
+  }
+  if(read_blocked_on_write) { /* we was blocked on write */
+    FD_ZERO(&readset);
+    FD_ZERO(&writeset);
+    FD_SET(rfd, &readset);
+    FD_SET(rfd, &writeset);
+
+    r = select(rfd + 1, &readset, &writeset, NULL, NULL);
+    read_blocked_on_write = 0;
+    if(r && FD_ISSET(rfd, &writeset)) goto __retry;
+  }
+
+  return r;
+}
+
 static int __conn_read(sxlink_t *co, void *buf, size_t buf_len)
 {
   int rfd = SSL_get_fd(co->ssl), r;
@@ -120,26 +222,26 @@ static int __conn_read(sxlink_t *co, void *buf, size_t buf_len)
     case SSL_ERROR_SYSCALL:
       if(errno == EAGAIN || errno == EINTR) goto __try_again;
       else {
-        fprintf(stderr, "[sxmplv2] (RD)SSL syscall error.\n");
+        sxlink_log(co, SXERROR_LOG, "[sxmplv2] (RD)SSL syscall error.\n");
         goto __close_conn;
       }
       break;
     case SSL_ERROR_WANT_CONNECT:
     case SSL_ERROR_WANT_ACCEPT:
-      fprintf(stderr, "[sxmplv2] (RD)SSL negotiation required. Trying again.\n");
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (RD)SSL negotiation required. Trying again.\n");
       goto __try_again;
       break;
     case SSL_ERROR_SSL:
-      fprintf(stderr, "[sxmplv2] (RD)SSL error occured. Connection will be closed.\n");
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (RD)SSL error occured. Connection will be closed.\n");
       goto __close_conn;
       break;
     case SSL_ERROR_ZERO_RETURN:
-      fprintf(stderr, "[sxmplv2] (RD)SSL connection is cleary closed.\n");
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (RD)SSL connection is cleary closed.\n");
     default:
     __close_conn:
       ERR_free_strings();
       co->flags |= SXMP_CLOSED;
-      fprintf(stderr, "[sxmplv2] (RD)Unknown error on %s (errno = %d)\n", co->uuid, errno);
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (RD)Unknown error on %s (errno = %d)\n", co->uuid, errno);
       ERR_remove_state(0);
       return -1;
     }
@@ -154,12 +256,12 @@ static int __conn_read(sxlink_t *co, void *buf, size_t buf_len)
     r = select(rfd + 1, &readset, NULL, NULL, NULL);
     if(r < 0) {
       if(errno == EINTR || errno == EAGAIN) goto __select_retry;
-      fprintf(stderr, "[sxmplv2] (RD)Select (%d) on %s\n", errno, co->uuid);
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (RD)Select (%d) on %s\n", errno, co->uuid);
       ERR_remove_state(0);
       return -1;
     }
     if(!r) {
-      fprintf(stderr, "[sxmplv2] (RD)Nothing to wait for\n");
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (RD)Nothing to wait for\n");
       ERR_remove_state(0);
       return 0;
     }
@@ -209,7 +311,7 @@ static int __conn_write(sxlink_t *co, void *buf, size_t buf_len)
       /* set closed flag */
       ERR_free_strings();
       co->flags |= SXMP_CLOSED;
-      fprintf(stderr, "[sxmplv2] (WR)Unknown error on %s (%d)\n", co->uuid, r);
+      sxlink_log(co, SXERROR_LOG, "[sxmplv2] (WR)Unknown error on %s (%d)\n", co->uuid, r);
       ERR_remove_state(0);
       return -1;
     } else return r;
@@ -513,7 +615,7 @@ static int __eval_sysrpc(sxlink_t *link, sexp_t *sx, int builtin)
   if(builtin) rpc_list = link->hub->stream_rpc;
   else rpc_list = link->hub->system_rpc;
 
-  if(sx->ty == SEXP_LIST)    rpcf = sx->list->val;
+  if(sx->ty == SEXP_LIST && sx->list != NULL)    rpcf = sx->list->val;
   else return SXE_BADPROTO;
 
   /* find an appropriate function */
@@ -811,7 +913,7 @@ static void *__sxmpl_thread(void *b)
           /* reply came ... */
           if(mid > (MAX_MSGINPROCESS - 1)) {
           __inval_idx_nor:
-            fprintf(stderr, "[sxmplv2] Invalid index of the message (%lu).\n", mid);
+            sxlink_log(co, SXERROR_LOG, "[sxmplv2] Invalid index of the message (%lu).\n", mid);
             goto __again;
           }
 
@@ -979,7 +1081,7 @@ sxlink_t *sxlink_master_accept(sxhub_t *hub, int sck, struct in_addr *addr)
 
   /* ok, now we need to init ssl stuff */
   /* check up - do we need to initialize SSL context? */
-  r = _sxhub_settls_ctx_s(hub);
+  r = _sxhub_settls_ctx_s(hub); /* TODO: mark on first failed attempt */
   if(r != SXE_SUCCESS) goto __fail;
 
   /* now we will create an SSL connection */
@@ -990,7 +1092,8 @@ sxlink_t *sxlink_master_accept(sxhub_t *hub, int sck, struct in_addr *addr)
   /* set the context to verify ssl connection */
   SSL_set_ex_data(link->ssl, ex_ssldata_index, (void *)link);
   SSL_set_accept_state(link->ssl);
-  if(SSL_accept(link->ssl) == -1) { r = SXE_EPERM; goto __fail; } /* leak here ? */
+  if(__conn_negotiate(link, SSLX_ACCEPT) <= 0)
+    { r = SXE_EPERM; goto __fail; } /* leak here ? */
 
   /* set connection to the batch mode */
   link->flags |= SXMP_BATCHMODE;
@@ -1214,7 +1317,7 @@ sxlink_t *sxlink_connect_at(sxhub_t *hub, const char *host,
   }
   SSL_set_fd(link->ssl, sck); /* attach connected socket */
   SSL_set_connect_state(link->ssl);
-  if(SSL_connect(link->ssl) == -1) {
+  if(__conn_negotiate(link, SSLX_CONNECT) <= 0) {
     r = SXE_EPERM;
     /* shutdown connection */
     goto __fail;
@@ -1359,6 +1462,9 @@ sxlink_t *sxlink_connect_at(sxhub_t *hub, const char *host,
   return NULL;
 }
 
+#undef SSLX_ACCEPT
+#undef SSLX_CONNECT
+
 int sxlink_close(sxlink_t *co)
 {
   sxmplv2_head_t mhead;

man/sxchannel_open.3

@@ -68,7 +68,7 @@ None.
 ,
 .BI sxlink_close(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_create.3

@@ -73,7 +73,7 @@ when this functions called all pending messages are drops.
 ,
 .BI sxmp_init(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_set_authcheck.3

@@ -67,7 +67,7 @@ None.
 ,
 .BI sxlink_setpriv(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_set_channelcall.3

@@ -62,7 +62,7 @@ None.
 ,
 .BI sxlink_setpriv(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_set_ondestroy.3

@@ -42,7 +42,7 @@ None.
 ,
 .BI sxhub_set_onpulse(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_set_onpulse.3

@@ -42,7 +42,7 @@ None.
 ,
 .BI sxhub_set_ondestroy(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_set_priv.3

@@ -51,7 +51,7 @@ None.
 .SH SEE ALSO
 .BI sxhub_set_ondestroy(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_set_rpcvalidator.3

@@ -65,7 +65,7 @@ None.
 ,
 .BI sxmp_rpclist_add_function(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_set_sslvalidate.3

@@ -62,7 +62,7 @@ None.
 ,
 .BI sxlink_setpriv(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_setsslserts.3

@@ -55,7 +55,7 @@ None.
 , 
 .BI sxlink_master_accept(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxhub_stream_register.3

@@ -173,7 +173,7 @@ each read operation doesn't means a real message initiation.
 ,
 .BI sxstream_bread(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>,
 .br

man/sxlink_master_accept.3

@@ -107,7 +107,7 @@ Using connection_link on master side with initialized connections set for master
 ,
 .BI sxmp_init(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>, (c) libsxmp dev team 2016 <http://libsxmp.sf.net>
 .SH AUTHOR

man/sxmp_init.3

@@ -44,7 +44,7 @@ None.
 , 
 .BI sxhub_destroy(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxmsg_pulse.3

@@ -40,7 +40,7 @@ This function might be useful to send events to the peer.
 .SH RATIONALE
 Calling this function from the client might blocks all operation with callee.
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxmsg_reply.3

@@ -87,7 +87,7 @@ None.
 ,
 .BI sxmsg_send(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxmsg_return.3

@@ -69,7 +69,7 @@ None.
 ,
 .BI sxmsg_send(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxmsg_rreply.3

@@ -52,7 +52,7 @@ This function will be useful in RPC functions required to reply ASAP i.e. for ge
 .SH RATIONALE
 Use for lightweight RPC functions, this method can be used only in RPC call i.e. within SXMP thread context.
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxmsg_send.3

@@ -96,7 +96,7 @@ None.
 ,
 .BI sxmsg_reply
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>
 .SH AUTHOR

man/sxstream_open.3

@@ -122,7 +122,7 @@ each read operation doesn't means a real message initiation.
 ,
 .BI sxstream_bread(3)
 .SH COPYRIGHT
-This software licensed under GNU LGPL v3. See COPYING for further details.
+This software licensed under GNU LGPL v2.1. See COPYING for further details.
 .br
 (c) Askele Group 2013-2015 <http://askele.com>, (c) libsxmp dev team 2016 <http://libsxmp.sf.net>
 .SH AUTHOR