Rework LuCI build system

 * Rename subdirectories to their repective OpenWrt package names
 * Make each LuCI module its own standalone package
 * Deploy a shared luci.mk which is used by each module Makefile

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

13 files changed, 0 insertions, 1540 deletions

diff --git a/libs/nixio/docsrc/CHANGELOG.lua b/libs/nixio/docsrc/CHANGELOG.lua
deleted file mode 100644
index fb1cf160b6..0000000000
--- a/libs/nixio/docsrc/CHANGELOG.lua
+++ /dev/null
@@ -1,29 +0,0 @@
---- Changes and improvements.
-module "CHANGELOG"
-
---- Service Release.
--- <ul>
--- <li>Added getifaddrs() function.</li>
--- <li>Added getsockopt(), setsockopt(), getsockname() and getpeername()
--- directly to TLS-socket objects unifying the socket interface.</li>
--- <li>Added support for CyaSSL as cryptographical backend.</li>
--- <li>Added support for x509 certificates in DER format.</li>
--- <li>Added support for splice() in UnifiedIO.copyz().</li>
--- <li>Added interface to inject chunks into UnifiedIO.linesource() buffer.</li>
--- <li>Changed TLS behaviour to explicitely separate servers and clients.</li>
--- <li>Fixed usage of signed datatype breaking Base64 decoding.</li>
--- <li>Fixed namespace clashes for nixio.fs.</li>
--- <li>Fixed splice() support for some exotic C libraries.</li>
--- <li>Reconfigure axTLS cryptographical provider and mark it as obsolete.</li>
--- </ul>
--- @class table
--- @name 0.3
--- @return !
-
---- Initial Release.
--- <ul>
--- <li>Initial Release</li>  
--- </ul>
--- @class table
--- @name 0.2
--- @return !
\ No newline at end of file
diff --git a/libs/nixio/docsrc/README.lua b/libs/nixio/docsrc/README.lua
deleted file mode 100644
index b957a69903..0000000000
--- a/libs/nixio/docsrc/README.lua
+++ /dev/null
@@ -1,95 +0,0 @@
---- General Information.
-module "README"
-
---- General error handling information.
--- <ul>
--- <li> Most of the functions available in this library may fail. If any error
--- occurs the function returns <strong>nil or false</strong>, an error code
--- (usually errno) and an additional error message text (if avaialable).</li>
--- <li>At the moment false is only returned when a non-blocking I/O function
--- fails with EAGAIN, EWOULDBLOCK or WSAEWOULDBLOCK for any others nil is
--- returned as first parameter. Therefore you can use false to write portable
--- non-blocking I/O applications.</li>
--- <li>Note that the function documentation does only mention the return values
--- in case of a successful operation.</li> 
--- <li>You can find a table of common error numbers and other useful constants
--- like signal numbers in <strong>nixio.const</strong> e.g. nixio.const.EINVAL,
--- nixio.const.SIGTERM, etc. For portability there is a second error constant
--- table <strong>nixio.const_sock</strong> for socket error codes. This might
--- be important if you are dealing with Windows applications, on POSIX however
--- const_sock is just an alias for const.</li>
--- <li>With some exceptions - which are explicitely stated in the function
--- documentation - all blocking functions are signal-protected and will not fail
--- with EINTR.</li>
--- <li>On POSIX the SIGPIPE signal will be set to ignore upon initialization.
--- You should restore the default behaviour or set a custom signal handler
--- in your program after loading nixio if you need this behaviour.</li>
--- </ul>
--- @class table
--- @name Errorhandling
--- @return !
-
---- Function conventions.
--- <br />In general all functions are namend and behave like their POSIX API
--- counterparts - where applicable - applying the following rules:
--- <ul>
--- <li>Functions should be named like the underlying POSIX API function ommiting
--- prefixes or suffixes - especially when placed in an object-context (
--- lockf -> File:lock, fsync -> File:sync, dup2 -> dup, ...)</li>
--- <li>If you are unclear about the behaviour of a function you should consult
--- your OS API documentation (e.g. the manpages).</li>
--- <li>If the name is significantly different from the POSIX-function, the
--- underlying function(s) are stated in the documentation.</li>
--- <li>Parameters should reflect those of the C-API, buffer length arguments and 
--- by-reference parameters should be ommitted for pratical purposes.</li>
--- <li>If a C function accepts a bitfield as parameter, it should be translated
--- into lower case string flags representing the flags if the bitfield is the 
--- last parameter and also ommiting prefixes or suffixes. (e.g.  waitpid
--- (pid, &s, WNOHANG | WUNTRACED) -> waitpid(pid, "nohang", "untraced"), 
--- getsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) ->
--- Socket:getopt("socket", "reuseaddr"), etc.) </li>
--- <li>If it is not applicable to provide a string representation of the
--- bitfield a bitfield generator helper is provided. It is named FUNCTION_flags.
--- (open("/tmp/test", O_RDONLY | O_NONBLOCK) -> open("/tmp/test", open_flags(
--- "rdonly", "nonblock")))</li>  
--- </ul>
--- @class table
--- @name Functions
--- @return !
-
---- Platform information.
--- <ul>
--- <li>The minimum platform requirements are a decent POSIX 2001 support.
--- Builds are more or less tested on Linux, Solaris and FreeBSD. Builds for
--- Windows XP SP1 and later can be compiled with MinGW either from Windows
--- itself or using the MinGW cross-compiler. Earlier versions of Windows are not
--- supported.</li>
--- <li>In general all functions which don't have any remarks 
--- in their documentation are available on all platforms.</li>
--- <li>Functions with a (POSIX), (Linux) or similar prefix are only available
--- on these specific platforms. Same appplies to parameters of functions
--- with a similar suffix.</li>
--- <li>Some functions might have limitations on some platforms. This should
--- be stated in the documentation. Please also consult your OS API 
--- documentation.</li>   
--- </ul>
--- @usage Tes
--- @class table
--- @name Platforms
--- @return !
-
---- Cryptography and TLS libraries.
--- <ul>
--- <li>Currently 3 underlying cryptography libraries are supported: openssl,
--- cyassl and axTLS. The name of the library in use is written to 
--- <strong>nixio.tls_provider</strong></li>
--- <li>You should whenever possible use openssl or cyassl as axTLS has only 
--- limited support. It does not provide support for non-blocking sockets and
--- is probably less audited than the other ones.</li>
--- <li>As the supported Windows versions are not suitable for embedded devices
--- axTLS is at the moment not supported on Windows.</li>  
--- </ul>
--- @usage Tes
--- @class table
--- @name TLS-Crypto
--- @return !
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.CryptoHash.lua b/libs/nixio/docsrc/nixio.CryptoHash.lua
deleted file mode 100644
index a08b48d680..0000000000
--- a/libs/nixio/docsrc/nixio.CryptoHash.lua
+++ /dev/null
@@ -1,17 +0,0 @@
---- Cryptographical Hash and HMAC object.
--- @cstyle	instance
-module "nixio.CryptoHash"
-
---- Add another chunk of data to be hashed.
--- @class function
--- @name CryptoHash.update
--- @param chunk Chunk of data
--- @return CryptoHash object (self)
-
---- Finalize the hash and return the digest.
--- @class function
--- @name CryptoHash.final
--- @usage You cannot call update on a hash object that was already finalized
--- you can however call final multiple times to get the digest.
--- @return	hexdigest
--- @return  buffer containing binary digest
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.File.lua b/libs/nixio/docsrc/nixio.File.lua
deleted file mode 100644
index 368562a2a1..0000000000
--- a/libs/nixio/docsrc/nixio.File.lua
+++ /dev/null
@@ -1,109 +0,0 @@
---- Large File Object.
--- Large file operations are supported up to 52 bits if the Lua number type is
--- double (default).
--- @cstyle	instance
-module "nixio.File"
-
---- Write to the file descriptor.
--- @class function
--- @name File.write
--- @usage <strong>Warning:</strong> It is not guaranteed that all data
--- in the buffer is written at once especially when dealing with pipes.
--- You have to check the return value - the number of bytes actually written -
--- or use the safe IO functions in the high-level IO utility module.
--- @usage Unlike standard Lua indexing the lowest offset and default is 0.
--- @param buffer	Buffer holding the data to be written.
--- @param offset	Offset to start reading the buffer from. (optional)
--- @param length	Length of chunk to read from the buffer. (optional)
--- @return number of bytes written
-
---- Read from a file descriptor.
--- @class function
--- @name File.read
--- @usage <strong>Warning:</strong> It is not guaranteed that all requested data
--- is read at once especially when dealing with pipes.
--- You have to check the return value - the length of the buffer actually read -
--- or use the safe IO functions in the high-level IO utility module.
--- @usage The length of the return buffer is limited by the (compile time) 
--- nixio buffersize which is <em>nixio.const.buffersize</em> (8192 by default).
--- Any read request greater than that will be safely truncated to this value.  
--- @param length	Amount of data to read (in Bytes).
--- @return buffer containing data successfully read
-
---- Reposition read / write offset of the file descriptor.
--- The seek will be done either from the beginning of the file or relative
--- to the current position or relative to the end.
--- @class function
--- @name File.seek
--- @usage This function calls lseek().
--- @param offset	File Offset
--- @param whence	Starting point [<strong>"set"</strong>, "cur", "end"]
--- @return new (absolute) offset position
-
---- Return the current read / write offset of the file descriptor.
--- @class function
--- @name File.tell
--- @usage This function calls lseek() with offset 0 from the current position.
--- @return offset position
-
---- Synchronizes the file with the storage device.
--- Returns when the file is successfully written to the disk.
--- @class function
--- @name File.sync
--- @usage This function calls fsync() when data_only equals false
--- otherwise fdatasync(), on Windows _commit() is used instead.
--- @usage fdatasync() is only supported by Linux and Solaris. For other systems
--- the <em>data_only</em> parameter is ignored and fsync() is always called.
--- @param data_only		Do not synchronize the metadata. (optional, boolean)
--- @return true
-
---- Apply or test a lock on the file.
--- @class function
--- @name File.lock
--- @usage This function calls lockf() on POSIX and _locking() on Windows.
--- @usage The "lock" command is blocking, "tlock" is non-blocking,
--- "ulock" unlocks and "test" only tests for the lock.
--- @usage The "test" command is not available on Windows.
--- @usage Locks are by default advisory on POSIX, but mandatory on Windows.
--- @param command	Locking Command ["lock", "tlock", "ulock", "test"]
--- @param length	Amount of Bytes to lock from current offset (optional)
--- @return true
-
---- Get file status and attributes.
--- @class function
--- @name File.stat
--- @param	field	Only return a specific field, not the whole table (optional)
--- @usage This function calls fstat().
--- @return	Table containing: <ul>
--- <li>atime = Last access timestamp</li>
--- <li>blksize = Blocksize (POSIX only)</li>
--- <li>blocks = Blocks used (POSIX only)</li>
--- <li>ctime = Creation timestamp</li>
--- <li>dev = Device ID</li>
--- <li>gid = Group ID</li>
--- <li>ino = Inode</li>
--- <li>modedec = Mode converted into a decimal number</li>
--- <li>modestr = Mode as string as returned by `ls -l`</li>
--- <li>mtime = Last modification timestamp</li>
--- <li>nlink = Number of links</li>
--- <li>rdev = Device ID (if special file)</li>
--- <li>size = Size in bytes</li>
--- <li>type = ["reg", "dir", "chr", "blk", "fifo", "lnk", "sock"]</li>
--- <li>uid = User ID</li>
--- </ul>
-
---- Close the file descriptor.
--- @class function
--- @name File.close
--- @return true
-
---- Get the number of the filedescriptor.
--- @class function
--- @name File.fileno
--- @return file descriptor number
-
---- (POSIX) Set the blocking mode of the file descriptor.
--- @class function
--- @name File.setblocking
--- @param	blocking	(boolean)
--- @return true
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.Socket.lua b/libs/nixio/docsrc/nixio.Socket.lua
deleted file mode 100644
index 7123393bf4..0000000000
--- a/libs/nixio/docsrc/nixio.Socket.lua
+++ /dev/null
@@ -1,170 +0,0 @@
---- Socket Object.
--- Supports IPv4, IPv6 and UNIX (POSIX only) families.
--- @cstyle	instance
-module "nixio.Socket"
-
---- Get the local address of a socket.
--- @class function
--- @name Socket.getsockname
--- @return	IP-Address
--- @return	Port
-
---- Get the peer address of a socket.
--- @class function
--- @name Socket.getpeername
--- @return	IP-Address
--- @return	Port
-
---- Bind the socket to a network address.
--- @class function
--- @name Socket.bind
--- @usage This function calls getaddrinfo() and bind() but NOT listen().
--- @usage If <em>host</em> is a domain name it will be looked up and bind() 
--- tries the IP-Addresses in the order returned by the DNS resolver
--- until the bind succeeds. 
--- @usage UNIX sockets ignore the <em>port</em>,
--- and interpret <em>host</em> as a socket path.
--- @param host	Host (optional, default: all addresses)
--- @param port	Port or service description
--- @return true
-
---- Connect the socket to a network address.
--- @class function
--- @name Socket.connect
--- @usage This function calls getaddrinfo() and connect().
--- @usage If <em>host</em> is a domain name it will be looked up and connect() 
--- tries the IP-Addresses in the order returned by the DNS resolver
--- until the connect succeeds. 
--- @usage UNIX sockets ignore the <em>port</em>,
--- and interpret <em>host</em> as a socket path.
--- @param host	Hostname or IP-Address (optional, default: localhost)
--- @param port	Port or service description
--- @return true
-
---- Listen for connections on the socket.
--- @class function
--- @name Socket.listen
--- @param	backlog	Length of queue for pending connections
--- @return	true
-
---- Accept a connection on the socket.
--- @class function
--- @name Socket.accept
--- @return	Socket Object
--- @return	Peer IP-Address
--- @return  Peer Port
-
---- Send a message on the socket specifying the destination.
--- @class function
--- @name Socket.sendto
--- @usage <strong>Warning:</strong> It is not guaranteed that all data
--- in the buffer is written at once.
--- You have to check the return value - the number of bytes actually written -
--- or use the safe IO functions in the high-level IO utility module.
--- @usage Unlike standard Lua indexing the lowest offset and default is 0.
--- @param buffer	Buffer holding the data to be written.
--- @param host		Target IP-Address
--- @param port		Target Port
--- @param offset	Offset to start reading the buffer from. (optional)
--- @param length	Length of chunk to read from the buffer. (optional)
--- @return number of bytes written
-
---- Send a message on the socket.
--- This function is identical to sendto except for the missing destination
--- paramters. See the sendto description for a detailed description.
--- @class function
--- @name Socket.send
--- @param buffer	Buffer holding the data to be written.
--- @param offset	Offset to start reading the buffer from. (optional)
--- @param length	Length of chunk to read from the buffer. (optional)
--- @see	Socket.sendto
--- @return number of bytes written
-
---- Send a message on the socket (This is an alias for send).
--- See the sendto description for a detailed description.
--- @class function
--- @name Socket.write
--- @param buffer	Buffer holding the data to be written.
--- @param offset	Offset to start reading the buffer from. (optional)
--- @param length	Length of chunk to read from the buffer. (optional)
--- @see	Socket.sendto
--- @return number of bytes written
-
---- Receive a message on the socket including the senders source address.
--- @class function
--- @name Socket.recvfrom
--- @usage <strong>Warning:</strong> It is not guaranteed that all requested data
--- is read at once.
--- You have to check the return value - the length of the buffer actually read -
--- or use the safe IO functions in the high-level IO utility module.
--- @usage The length of the return buffer is limited by the (compile time) 
--- nixio buffersize which is <em>nixio.const.buffersize</em> (8192 by default).
--- Any read request greater than that will be safely truncated to this value.  
--- @param length	Amount of data to read (in Bytes).
--- @return buffer containing data successfully read
--- @return host		IP-Address of the sender
--- @return port		Port of the sender
-
---- Receive a message on the socket.
--- This function is identical to recvfrom except that it does not return 
--- the sender's source address. See the recvfrom description for more details.
--- @class function
--- @name Socket.recv  
--- @param length	Amount of data to read (in Bytes).
--- @see Socket.recvfrom
--- @return buffer containing data successfully read
-
---- Receive a message on the socket (This is an alias for recv).
--- See the recvfrom description for more details.
--- @class function
--- @name Socket.read  
--- @param length	Amount of data to read (in Bytes).
--- @see Socket.recvfrom
--- @return buffer containing data successfully read
-
---- Close the socket.
--- @class function
--- @name Socket.close
--- @return true
-
---- Shut down part of a full-duplex connection.
--- @class function
--- @name Socket.shutdown
--- @param how	(optional, default: rdwr) ["rdwr", "rd", "wr"] 
--- @return	true
-
---- Get the number of the filedescriptor.
--- @class function
--- @name Socket.fileno
--- @return file descriptor number
-
---- Set the blocking mode of the socket.
--- @class function
--- @name Socket.setblocking
--- @param	blocking	(boolean)
--- @return true
-
---- Set a socket option.
--- @class function
--- @name Socket.setopt
--- @param level Level ["socket", "tcp", "ip", "ipv6"]
--- @param option Option	["keepalive", "reuseaddr", "sndbuf", "rcvbuf", 
--- "priority", "broadcast", "linger", "sndtimeo", "rcvtimeo", "dontroute", 
--- "bindtodevice", "error", "oobinline", "cork" (TCP),  "nodelay" (TCP),
--- "mtu" (IP, IPv6), "hdrincl" (IP), "multicast_ttl" (IP), "multicast_loop"
--- (IP, IPv6), "multicast_if" (IP, IPv6), "v6only" (IPv6), "multicast_hops"
--- (IPv6), "add_membership" (IP, IPv6), "drop_membership" (IP, IPv6)]
--- @param	value Value
--- @return true
-
---- Get a socket option.
--- @class function
--- @name Socket.getopt
--- @param level Level ["socket", "tcp", "ip", "ipv6"]
--- @param option Option	["keepalive", "reuseaddr", "sndbuf", "rcvbuf", 
--- "priority", "broadcast", "linger", "sndtimeo", "rcvtimeo", "dontroute", 
--- "bindtodevice", "error", "oobinline", "cork" (TCP),  "nodelay" (TCP),
--- "mtu" (IP, IPv6), "hdrincl" (IP), "multicast_ttl" (IP), "multicast_loop"
--- (IP, IPv6), "multicast_if" (IP, IPv6), "v6only" (IPv6), "multicast_hops"
--- (IPv6), "add_membership" (IP, IPv6), "drop_membership" (IP, IPv6)]
--- @return Value
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.TLSContext.lua b/libs/nixio/docsrc/nixio.TLSContext.lua
deleted file mode 100644
index 7cc071195a..0000000000
--- a/libs/nixio/docsrc/nixio.TLSContext.lua
+++ /dev/null
@@ -1,46 +0,0 @@
---- Transport Layer Security Context Object.
--- @cstyle	instance
-module "nixio.TLSContext"
-
---- Create a TLS Socket from a socket descriptor.
--- @class function
--- @name TLSContext.create
--- @param socket Socket Object
--- @return TLSSocket Object
-
---- Assign a PEM certificate to this context.
--- @class function
--- @name TLSContext.set_cert
--- @usage This function calls SSL_CTX_use_certificate_chain_file().
--- @param path	Certificate File path
--- @return true
-
---- Assign a PEM private key to this context.
--- @class function
--- @name TLSContext.set_key
--- @usage This function calls SSL_CTX_use_PrivateKey_file().
--- @param path	Private Key File path
--- @return true
-
---- Set the available ciphers for this context.
--- @class function
--- @name TLSContext.set_ciphers
--- @usage This function calls SSL_CTX_set_cipher_list().
--- @param cipherlist	String containing a list of ciphers
--- @return true
-
---- Set the verification depth of this context.
--- @class function
--- @name TLSContext.set_verify_depth
--- @usage This function calls SSL_CTX_set_verify_depth().
--- @param depth	Depth
--- @return true
-
---- Set the verification flags of this context.
--- @class function
--- @name TLSContext.set_verify
--- @usage This function calls SSL_CTX_set_verify().
--- @param flag1	First Flag	["none", "peer", "verify_fail_if_no_peer_cert", 
--- "client_once"]
--- @param ...	More Flags	[-"-]
--- @return true
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.TLSSocket.lua b/libs/nixio/docsrc/nixio.TLSSocket.lua
deleted file mode 100644
index b932cde0d2..0000000000
--- a/libs/nixio/docsrc/nixio.TLSSocket.lua
+++ /dev/null
@@ -1,73 +0,0 @@
---- TLS Socket Object.
--- TLS Sockets contain the underlying socket and context in the fields
--- "socket" and "context".
--- @cstyle	instance
-module "nixio.TLSSocket"
-
---- Initiate the TLS handshake as client with the server.
--- @class function
--- @name TLSSocket.connect
--- @usage This function calls SSL_connect().
--- @usage You have to call either connect or accept before transmitting data.
--- @see TLSSocket.accept
--- @return true
-
---- Wait for a TLS handshake from a client.
--- @class function
--- @name TLSSocket.accept
--- @usage This function calls SSL_accept().
--- @usage You have to call either connect or accept before transmitting data.
--- @see TLSSocket.connect
--- @return	true
-
---- Send a message to the socket.
--- @class function
--- @name TLSSocket.send
--- @usage This function calls SSL_write().
--- @usage <strong>Warning:</strong> It is not guaranteed that all data
--- in the buffer is written at once.
--- You have to check the return value - the number of bytes actually written -
--- or use the safe IO functions in the high-level IO utility module.
--- @usage Unlike standard Lua indexing the lowest offset and default is 0.
--- @param buffer	Buffer holding the data to be written.
--- @param offset	Offset to start reading the buffer from. (optional)
--- @param length	Length of chunk to read from the buffer. (optional)
--- @return number of bytes written
-
---- Send a message on the socket (This is an alias for send).
--- See the send description for a detailed description.
--- @class function
--- @name TLSSocket.write
--- @param buffer	Buffer holding the data to be written.
--- @param offset	Offset to start reading the buffer from. (optional)
--- @param length	Length of chunk to read from the buffer. (optional)
--- @see	TLSSocket.send
--- @return number of bytes written
-
---- Receive a message on the socket.
--- @class function
--- @name TLSSocket.recv
--- @usage This function calls SSL_read().
--- @usage <strong>Warning:</strong> It is not guaranteed that all requested data
--- is read at once.
--- You have to check the return value - the length of the buffer actually read -
--- or use the safe IO functions in the high-level IO utility module.
--- @usage The length of the return buffer is limited by the (compile time) 
--- nixio buffersize which is <em>nixio.const.buffersize</em> (8192 by default).
--- Any read request greater than that will be safely truncated to this value.  
--- @param length	Amount of data to read (in Bytes).
--- @return buffer containing data successfully read
-
---- Receive a message on the socket (This is an alias for recv).
--- See the recv description for more details.
--- @class function
--- @name TLSSocket.read  
--- @param length	Amount of data to read (in Bytes).
--- @see TLSSocket.recv
--- @return buffer containing data successfully read
-
---- Shut down the TLS connection.
--- @class function
--- @name TLSSocket.shutdown
--- @usage This function calls SSL_shutdown().
--- @return	true
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.UnifiedIO.lua b/libs/nixio/docsrc/nixio.UnifiedIO.lua
deleted file mode 100644
index 6e407ff2ca..0000000000
--- a/libs/nixio/docsrc/nixio.UnifiedIO.lua
+++ /dev/null
@@ -1,129 +0,0 @@
---- Unified high-level I/O utility API for Files, Sockets and TLS-Sockets.
--- These functions are added to the object function tables by doing <strong>
--- require "nixio.util"</strong>, can be used on all nixio IO  Descriptors and
--- are based on the shared low-level read() and write() functions.
--- @cstyle	instance
-module "nixio.UnifiedIO"
-
---- Test whether the I/O-Descriptor is a socket. 
--- @class function
--- @name UnifiedIO.is_socket
--- @return	boolean
-
---- Test whether the I/O-Descriptor is a TLS socket. 
--- @class function
--- @name UnifiedIO.is_tls_socket
--- @return	boolean
-
---- Test whether the I/O-Descriptor is a file. 
--- @class function
--- @name UnifiedIO.is_file
--- @return	boolean
-
---- Read a block of data and wait until all data is available.
--- @class function
--- @name UnifiedIO.readall
--- @usage This function uses the low-level read function of the descriptor.
--- @usage If the length parameter is ommited, this function returns all data
--- that can be read before an end-of-file, end-of-stream, connection shutdown
--- or similar happens.
--- @usage If the descriptor is non-blocking this function may fail with EAGAIN.
--- @param	length	Bytes to read (optional)
--- @return	data that was successfully read if no error occured
--- @return	- reserved for error code -
--- @return	- reserved for error message -
--- @return  data that was successfully read even if an error occured
-
---- Write a block of data and wait until all data is written.
--- @class function
--- @name UnifiedIO.writeall
--- @usage This function uses the low-level write function of the descriptor.
--- @usage If the descriptor is non-blocking this function may fail with EAGAIN.
--- @param	block	Bytes to write
--- @return	bytes that were successfully written if no error occured
--- @return	- reserved for error code -
--- @return	- reserved for error message -
--- @return  bytes that were successfully written even if an error occured
-
---- Create a line-based iterator.
--- Lines may end with either \n or \r\n, these control chars are not included
--- in the return value.
--- @class function
--- @name UnifiedIO.linesource
--- @usage This function uses the low-level read function of the descriptor.
--- @usage <strong>Note:</strong> This function uses an internal buffer to read
--- ahead. Do NOT mix calls to read(all) and the returned iterator. If you want
--- to stop reading line-based and want to use the read(all) functions instead
--- you can pass "true" to the iterator which will flush the buffer 
--- and return the bufferd data.
--- @usage If the limit parameter is ommited, this function uses the nixio
--- buffersize (8192B by default).
--- @usage If the descriptor is non-blocking the iterator may fail with EAGAIN.
--- @usage The iterator can be used as an LTN12 source.
--- @param	limit	Line limit
--- @return	Line-based Iterator
-
---- Create a block-based iterator.
--- @class function
--- @name UnifiedIO.blocksource
--- @usage This function uses the low-level read function of the descriptor.
--- @usage The blocksize given is only advisory and to be seen as an upper limit,
--- if an underlying read returns less bytes the chunk is nevertheless returned.
--- @usage If the limit parameter is ommited, the iterator returns data
--- until an end-of-file, end-of-stream, connection shutdown or similar happens.
--- @usage The iterator will not buffer so it is safe to mix with calls to read.
--- @usage If the descriptor is non-blocking the iterator may fail with EAGAIN.
--- @usage The iterator can be used as an LTN12 source.
--- @param	blocksize	Advisory blocksize (optional)
--- @param	limit		Amount of data to consume (optional)
--- @return	Block-based Iterator
-
---- Create a sink.
--- This sink will simply write all data that it receives and optionally
--- close the descriptor afterwards.
--- @class function
--- @name UnifiedIO.sink
--- @usage This function uses the writeall function of the descriptor.
--- @usage If the descriptor is non-blocking the sink may fail with EAGAIN.
--- @usage The iterator can be used as an LTN12 sink.
--- @param	close_when_done	(optional, boolean)
--- @return	Sink
-
---- Copy data from the current descriptor to another one.
--- @class function
--- @name UnifiedIO.copy
--- @usage This function uses the blocksource function of the source descriptor
--- and the sink function of the target descriptor.
--- @usage If the limit parameter is ommited, data is copied
--- until an end-of-file, end-of-stream, connection shutdown or similar happens.
--- @usage If the descriptor is non-blocking the function may fail with EAGAIN.
--- @param	fdout Target Descriptor
--- @param	size  Bytes to copy (optional)
--- @return	bytes that were successfully written if no error occured
--- @return	- reserved for error code -
--- @return	- reserved for error message -
--- @return  bytes that were successfully written even if an error occured
-
---- Copy data from the current descriptor to another one using kernel-space
--- copying if possible.
--- @class function
--- @name UnifiedIO.copyz
--- @usage This function uses the sendfile() syscall to copy the data or the
--- blocksource function of the source descriptor and the sink function
--- of the target descriptor as a fallback mechanism.
--- @usage If the limit parameter is ommited, data is copied
--- until an end-of-file, end-of-stream, connection shutdown or similar happens.
--- @usage If the descriptor is non-blocking the function may fail with EAGAIN.
--- @param	fdout Target Descriptor
--- @param	size  Bytes to copy (optional)
--- @return	bytes that were successfully written if no error occured
--- @return	- reserved for error code -
--- @return	- reserved for error message -
--- @return  bytes that were successfully written even if an error occured
-
---- Close the descriptor.
--- @class function
--- @name UnifiedIO.close
--- @usage	If the descriptor is a TLS-socket the underlying descriptor is
--- closed without touching the TLS connection.
--- @return	true
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.bin.lua b/libs/nixio/docsrc/nixio.bin.lua
deleted file mode 100644
index 13e125d3cc..0000000000
--- a/libs/nixio/docsrc/nixio.bin.lua
+++ /dev/null
@@ -1,33 +0,0 @@
---- Binary operations and conversion.
-module "nixio.bin"
-
---- Return a hexadecimal ASCII represantation of the content of a buffer. 
--- @class function
--- @name hexlify
--- @param buffer	Buffer
--- @return representation using characters [0-9a-f]
-
---- Return a binary buffer from a hexadecimal ASCII representation. 
--- @class function
--- @name unhexlify
--- @param hexvalue representation using characters [0-9a-f]
--- @return binary data
-
---- Calculate the CRC32 value of a buffer. 
--- @class function
--- @name crc32
--- @param buffer	Buffer
--- @param initial	Initial CRC32 value (optional)
--- @return crc32 value
-
---- Base64 encode a given buffer.
--- @class function
--- @name b64encode
--- @param buffer	Buffer
--- @return base64 encoded buffer
-
---- Base64 decode a given buffer.
--- @class function
--- @name b64decode
--- @param buffer	Base 64 Encoded data
--- @return binary data
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.bit.lua b/libs/nixio/docsrc/nixio.bit.lua
deleted file mode 100644
index 6951dd5321..0000000000
--- a/libs/nixio/docsrc/nixio.bit.lua
+++ /dev/null
@@ -1,92 +0,0 @@
---- Bitfield operators and mainpulation functions.
--- Can be used as a drop-in replacement for bitlib.
-module "nixio.bit"
-
---- Bitwise OR several numbers.
--- @class function
--- @name bor
--- @param oper1	First Operand
--- @param oper2 Second Operand
--- @param ...	More Operands
--- @return number
-
---- Invert given number.
--- @class function
--- @name bnot
--- @param oper Operand
--- @return number
-
---- Bitwise AND several numbers.
--- @class function
--- @name band
--- @param oper1	First Operand
--- @param oper2 Second Operand
--- @param ...	More Operands
--- @return number
-
---- Bitwise XOR several numbers.
--- @class function
--- @name bxor
--- @param oper1	First Operand
--- @param oper2 Second Operand
--- @param ...	More Operands
--- @return number
-
---- Left shift a number.
--- @class function
--- @name lshift
--- @param oper	number
--- @param shift	bits to shift 
--- @return number
-
---- Right shift a number.
--- @class function
--- @name rshift
--- @param oper	number
--- @param shift	bits to shift 
--- @return number
-
---- Arithmetically right shift a number.
--- @class function
--- @name arshift
--- @param oper	number
--- @param shift	bits to shift 
--- @return number
-
---- Integer division of 2 or more numbers.
--- @class function
--- @name div
--- @param oper1	Operand 1
--- @param oper2 Operand 2
--- @param ... More Operands
--- @return number
-
---- Cast a number to the bit-operating range.
--- @class function
--- @name cast
--- @param oper	number
--- @return number
-
---- Sets one or more flags of a bitfield.
--- @class function
--- @name set
--- @param bitfield	Bitfield
--- @param flag1 First Flag
--- @param ...	More Flags
--- @return altered bitfield
-
---- Unsets one or more flags of a bitfield.
--- @class function
--- @name unset
--- @param bitfield	Bitfield
--- @param flag1 First Flag
--- @param ...	More Flags
--- @return altered bitfield
-
---- Checks whether given flags are set in a bitfield.
--- @class function
--- @name check
--- @param bitfield	Bitfield
--- @param flag1 First Flag
--- @param ...	More Flags
--- @return true when all flags are set, otherwise false
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.crypto.lua b/libs/nixio/docsrc/nixio.crypto.lua
deleted file mode 100644
index 158d0fc0bd..0000000000
--- a/libs/nixio/docsrc/nixio.crypto.lua
+++ /dev/null
@@ -1,15 +0,0 @@
---- Cryptographical library.
-module "nixio.crypto"
-
---- Create a hash object. 
--- @class function
--- @name nixio.crypto.hash
--- @param algo	Algorithm ["sha1", "md5"]
--- @return CryptoHash Object
-
---- Create a HMAC object. 
--- @class function
--- @name nixio.crypto.hmac
--- @param algo	Algorithm ["sha1", "md5"]
--- @param key	HMAC-Key
--- @return CryptoHash Object
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.fs.lua b/libs/nixio/docsrc/nixio.fs.lua
deleted file mode 100644
index 5d08719e96..0000000000
--- a/libs/nixio/docsrc/nixio.fs.lua
+++ /dev/null
@@ -1,265 +0,0 @@
---- Low-level and high-level filesystem manipulation library.
-module "nixio.fs"
-
-
---- Check user's permission on a file.
--- @class function
--- @name nixio.fs.access
--- @param path		Path
--- @param mode1		First Mode to check ["f", "r", "w", "x"]
--- @param ...		More Modes to check	[-"-]
--- @return	true
-
---- Strip the directory part from a path.
--- @class function
--- @name nixio.fs.basename
--- @usage	This function cannot fail and will never return nil.
--- @param	path Path
--- @return	basename
-
---- Strip the base from a path.
--- @class function
--- @name nixio.fs.dirname
--- @usage	This function cannot fail and will never return nil.
--- @param	path Path
--- @return	dirname
-
---- Return the cannonicalized absolute pathname.
--- @class function
--- @name nixio.fs.realpath
--- @param	path Path
--- @return	absolute path
-
---- Remove a file or directory.
--- @class function
--- @name nixio.fs.remove
--- @param	path Path
--- @return	true
-
---- Delete a name and - if no links are left - the associated file.
--- @class function
--- @name nixio.fs.unlink
--- @param	path Path
--- @return	true
-
---- Renames a file or directory.
--- @class function
--- @name nixio.fs.rename
--- @param	src	Source path
--- @param 	dest Destination path
--- @usage	It is normally not possible to rename files accross fileystems.
--- @return	true
-
---- Remove an empty directory.
--- @class function
--- @name nixio.fs.rmdir
--- @param	path Path
--- @return	true
-
---- Create a new directory.
--- @class function
--- @name nixio.fs.mkdir
--- @param	path Path
--- @param	mode File mode (optional, see chmod and umask)
--- @see	nixio.fs.chmod
--- @see	nixio.umask
--- @return	true
-
---- Change the file mode.
--- @class function
--- @name	nixio.fs.chmod
--- @usage	Windows only supports setting the write-protection through the
--- "Writable to others" bit.
--- @usage	<strong>Notice:</strong> The mode-flag for the functions
--- open, mkdir, mkfifo are affected by the umask. 
--- @param	path Path
--- @param	mode File mode	
--- [decimal mode number, "[-r][-w][-xsS][-r][-w][-xsS][-r][-w][-xtT]"]
--- @see	nixio.umask
--- @return true
-
---- Iterate over the entries of a directory.
--- @class function
--- @name nixio.fs.dir
--- @usage	The special entries "." and ".." are omitted.
--- @param	path Path
--- @return	directory iterator returning one entry per call
-
---- Create a hard link.
--- @class function
--- @name nixio.fs.link
--- @usage This function calls link() on POSIX and CreateHardLink() on Windows.
--- @param	oldpath Path
--- @param	newpath Path
--- @return	true
-
---- Change file last access and last modification time.
--- @class function
--- @name nixio.fs.utimes
--- @param	path Path
--- @param	actime Last access timestamp	(optional, default: current time)
--- @param	mtime Last modification timestamp (optional, default: actime)
--- @return	true
-
---- Get file status and attributes.
--- @class function
--- @name nixio.fs.stat
--- @param	path	Path
--- @param	field	Only return a specific field, not the whole table (optional)
--- @return	Table containing: <ul>
--- <li>atime = Last access timestamp</li>
--- <li>blksize = Blocksize (POSIX only)</li>
--- <li>blocks = Blocks used (POSIX only)</li>
--- <li>ctime = Creation timestamp</li>
--- <li>dev = Device ID</li>
--- <li>gid = Group ID</li>
--- <li>ino = Inode</li>
--- <li>modedec = Mode converted into a decimal number</li>
--- <li>modestr = Mode as string as returned by `ls -l`</li>
--- <li>mtime = Last modification timestamp</li>
--- <li>nlink = Number of links</li>
--- <li>rdev = Device ID (if special file)</li>
--- <li>size = Size in bytes</li>
--- <li>type = ["reg", "dir", "chr", "blk", "fifo", "lnk", "sock"]</li>
--- <li>uid = User ID</li>
--- </ul>
-
---- Get file status and attributes and do not resolve if target is a symlink.
--- @class function
--- @name nixio.fs.lstat
--- @param	path	Path
--- @param	field	Only return a specific field, not the whole table (optional)
--- @see	nixio.fs.stat
--- @return Table containing attributes (see stat for a detailed description)
-
---- (POSIX) Change owner and group of a file.
--- @class function
--- @name nixio.fs.chown
--- @param	path	Path
--- @param	user	User ID or Username		(optional)
--- @param 	group	Group ID or Groupname	(optional)
--- @return true
-
---- (POSIX) Change owner and group of a file and do not resolve
--- if target is a symlink.
--- @class function
--- @name nixio.fs.lchown
--- @param	path	Path
--- @param	user	User ID or Username		(optional)
--- @param 	group	Group ID or Groupname	(optional)
--- @return true
-
---- (POSIX) Create a FIFO (named pipe).
--- @class function
--- @name nixio.fs.mkfifo
--- @param	path Path
--- @param	mode File mode (optional, see chmod and umask)
--- @see	nixio.fs.chmod
--- @see	nixio.umask
--- @return	true
-
---- (POSIX) Create a symbolic link.
--- @class function
--- @name nixio.fs.symlink
--- @param	oldpath Path
--- @param	newpath Path
--- @return	true
-
---- (POSIX) Read the target of a symbolic link.
--- @class function
--- @name nixio.fs.readlink
--- @param	path Path
--- @return	target path
-
---- (POSIX) Find pathnames matching a pattern.
--- @class function
--- @name nixio.fs.glob
--- @param	pattern Pattern
--- @return	path iterator
--- @return	number of matches
-
---- (POSIX) Get filesystem statistics.
--- @class function
--- @name nixio.fs.statvfs
--- @param	path Path to any file within the filesystem.
--- @return	Table containing: <ul>
--- <li>bavail = available blocks</li>
--- <li>bfree = free blocks</li>
--- <li>blocks = number of fragments</li>
--- <li>frsize = fragment size</li>
--- <li>favail = available inodes</li>
--- <li>ffree = free inodes</li>
--- <li>files = inodes</li>
--- <li>flag = flags</li>
--- <li>fsid = filesystem ID</li>
--- <li>namemax = maximum filename length</li>
--- </ul>
-
---- Read the contents of a file into a buffer.
--- @class function
--- @name nixio.fs.readfile
--- @param	path Path
--- @param	limit	Maximum bytes to read (optional)
--- @return	file contents
-
---- Write a buffer into a file truncating the file first.
--- @class function
--- @name nixio.fs.writefile
--- @param	path Path
--- @param	data Data to write
--- @return	true
-
---- Copy data between files.
--- @class function
--- @name nixio.fs.datacopy
--- @param	src	Source file path
--- @param 	dest Destination file path
--- @param	limit	Maximum bytes to copy (optional)
--- @return	true
-
---- Copy a file, directory or symlink non-recursively preserving file mode,
--- timestamps, owner and group.
--- @class function
--- @name nixio.fs.copy
--- @usage	The destination must always be a full destination path e.g. do not
--- omit the basename even if source and destination basename are equal. 
--- @param	src	Source path
--- @param 	dest Destination path
--- @return	true
-
---- Rename a file, directory or symlink non-recursively across filesystems.
--- @class function
--- @name nixio.fs.move
--- @usage	The destination must always be a full destination path e.g. do not
--- omit the basename even if source and destination basename are equal. 
--- @param	src	Source path
--- @param 	dest Destination path
--- @return	true
-
---- Create a directory and all needed parent directories recursively. 
--- @class function
--- @name nixio.fs.mkdirr
--- @param 	dest Destination path
--- @param	mode File mode (optional, see chmod and umask)
--- @see	nixio.fs.chmod
--- @see	nixio.umask
--- @return	true
-
---- Rename a file, directory or symlink recursively across filesystems.
--- @class function
--- @name nixio.fs.mover
--- @usage	The destination must always be a full destination path e.g. do not
--- omit the basename even if source and destination basename are equal. 
--- @param	src	Source path
--- @param 	dest Destination path
--- @return	true
-
---- Copy a file, directory or symlink recursively preserving file mode,
--- timestamps, owner and group.
--- @class function
--- @name nixio.fs.copyr
--- @usage	The destination must always be a full destination path e.g. do not
--- omit the basename even if source and destination basename are equal. 
--- @param	src	Source path
--- @param 	dest Destination path
--- @return	true
\ No newline at end of file
diff --git a/libs/nixio/docsrc/nixio.lua b/libs/nixio/docsrc/nixio.lua
deleted file mode 100644
index 1b434d76de..0000000000
--- a/libs/nixio/docsrc/nixio.lua
+++ /dev/null
@@ -1,467 +0,0 @@
---- General POSIX IO library.
-module "nixio"
-
---- Look up a hostname and service via DNS.
--- @class function
--- @name nixio.getaddrinfo
--- @param host		hostname to lookup	(optional)
--- @param family 	address family [<strong>"any"</strong>, "inet", "inet6"]  
--- @param service	service name or port (optional)
--- @return			Table containing one or more tables containing: <ul>
--- <li>family = ["inet", "inet6"]</li>
--- <li>socktype = ["stream", "dgram", "raw"]</li>
--- <li>address = Resolved IP-Address</li>
--- <li>port = Resolved Port (if service was given)</li>
--- </ul>
-
---- Reverse look up an IP-Address via DNS.
--- @class function
--- @name nixio.getnameinfo
--- @param ipaddr	IPv4 or IPv6-Address
--- @return	FQDN
-
---- (Linux, BSD) Get a list of available network interfaces and their addresses.
--- @class function
--- @name nixio.getifaddrs
--- @return			Table containing one or more tables containing: <ul>
--- <li>name = Interface Name</li>
--- <li>family = ["inet", "inet6", "packet"]</li>
--- <li>addr = Interface Address (IPv4, IPv6, MAC, ...)</li>
--- <li>broadaddr = Broadcast Address</li>
--- <li>dstaddr = Destination Address (Point-to-Point)</li>
--- <li>netmask = Netmask (if available)</li>
--- <li>prefix = Prefix (if available)</li>
--- <li>flags = Table of interface flags (up, multicast, loopback, ...)</li>
--- <li>data = Statistics (Linux, "packet"-family)</li>
--- <li>hatype = Hardware Type Identifier (Linix, "packet"-family)</li>
--- <li>ifindex = Interface Index (Linux, "packet"-family)</li>
--- </ul>
-
---- Get protocol entry by name.
--- @usage This function returns nil if the given protocol is unknown.
--- @class function
--- @name nixio.getprotobyname
--- @param name		protocol name to lookup
--- @return			Table containing the following fields: <ul>
--- <li>name = Protocol Name</li>
--- <li>proto = Protocol Number</li>
--- <li>aliases = Table of alias names</li>
--- </ul>
-
---- Get protocol entry by number.
--- @usage This function returns nil if the given protocol is unknown.
--- @class function
--- @name nixio.getprotobynumber
--- @param proto		protocol number to lookup
--- @return			Table containing the following fields: <ul>
--- <li>name = Protocol Name</li>
--- <li>proto = Protocol Number</li>
--- <li>aliases = Table of alias names</li>
--- </ul>
-
---- Get all or a specifc proto entry.
--- @class function
--- @name nixio.getproto
--- @param proto		protocol number or name to lookup (optional)
--- @return			Table (or if no parameter is given, a table of tables)
---                  containing the following fields: <ul>
--- <li>name = Protocol Name</li>
--- <li>proto = Protocol Number</li>
--- <li>aliases = Table of alias names</li>
--- </ul>
-
---- Create a new socket and bind it to a network address.
--- This function is a shortcut for calling nixio.socket and then bind()
--- on the socket object.
--- @usage This functions calls getaddrinfo(), socket(),
--- setsockopt() and bind() but NOT listen().
--- @usage The <em>reuseaddr</em>-option is automatically set before binding.
--- @class function
--- @name nixio.bind
--- @param host	Hostname or IP-Address (optional, default: all addresses)
--- @param port	Port or service description
--- @param family Address family [<strong>"any"</strong>, "inet", "inet6"]
--- @param socktype Socket Type [<strong>"stream"</strong>, "dgram"]
--- @return	Socket Object
-
---- Create a new socket and connect to a network address.
--- This function is a shortcut for calling nixio.socket and then connect()
--- on the socket object.
--- @usage This functions calls getaddrinfo(), socket() and connect().
--- @class function
--- @name nixio.connect
--- @param host	Hostname or IP-Address (optional, default: localhost)
--- @param port	Port or service description
--- @param family Address family [<strong>"any"</strong>, "inet", "inet6"]
--- @param socktype Socket Type [<strong>"stream"</strong>, "dgram"]
--- @return	Socket Object
-
---- Open a file.
--- @class function
--- @name nixio.open
--- @usage Although this function also supports the traditional fopen() 
--- file flags it does not create a file stream but uses the open() syscall.
--- @param path	Filesystem path to open
--- @param flags	Flag string or number (see open_flags).
--- [<strong>"r"</strong>, "r+", "w", "w+", "a", "a+"]
--- @param  mode	File mode for newly created files (see chmod, umask).
--- @see	nixio.umask
--- @see nixio.open_flags
--- @return	File Object
-
---- Generate flags for a call to open().
--- @class function
--- @name nixio.open_flags
--- @usage This function cannot fail and will never return nil.
--- @usage The "nonblock" and "ndelay" flags are aliases.
--- @usage The "nonblock", "ndelay" and "sync" flags are no-ops on Windows.
--- @param flag1 First Flag ["append", "creat", "excl", "nonblock", "ndelay",
--- "sync", "trunc", "rdonly", "wronly", "rdwr"]
--- @param ...	More Flags [-"-]
--- @return flag to be used as second paramter to open
-
---- Duplicate a file descriptor.
--- @class function
--- @name nixio.dup
--- @usage This funcation calls dup2() if <em>newfd</em> is set, otherwise dup().
--- @param oldfd	Old descriptor [File Object, Socket Object (POSIX only)]
--- @param newfd New descriptor to serve as copy (optional)
--- @return	File Object of new descriptor
-
---- Create a pipe.
--- @class function
--- @name nixio.pipe
--- @return	File Object of the read end
--- @return	File Object of the write end
-
---- Get the last system error code.
--- @class function
--- @name nixio.errno
--- @return	Error code
-
---- Get the error message for the corresponding error code.
--- @class function
--- @name nixio.strerror
--- @param errno System error code
--- @return	Error message
-
---- Sleep for a specified amount of time.
--- @class function
--- @usage Not all systems support nanosecond precision but you can expect
--- to have at least maillisecond precision.
--- @usage This function is not signal-protected and may fail with EINTR.
--- @param seconds Seconds to wait (optional)
--- @param nanoseconds Nanoseconds to wait (optional)
--- @name nixio.nanosleep
--- @return true
-
---- Generate events-bitfield or parse revents-bitfield for poll.
--- @class function
--- @name nixio.poll_flags
--- @param	mode1	revents-Flag bitfield returned from poll to parse OR 
--- ["in", "out", "err", "pri" (POSIX), "hup" (POSIX), "nval" (POSIX)]
--- @param	...		More mode strings for generating the flag [-"-]
--- @see nixio.poll
--- @return table with boolean fields reflecting the mode parameter 
--- <strong>OR</strong> bitfield to use for the events-Flag field
-
---- Wait for some event on a file descriptor.
--- poll() sets the revents-field of the tables provided by fds to a bitfield
--- indicating the events that occured.
--- @class function
--- @usage This function works in-place on the provided table and only
--- writes the revents field, you can use other fields on your demand.
--- @usage All metamethods on the tables provided as fds are ignored.
--- @usage The revents-fields are not reset when the call times out.
--- You have to check the first return value to be 0 to handle this case.
--- @usage If you want to wait on a TLS-Socket you have to use the underlying
--- socket instead.
--- @usage On Windows poll is emulated through select(), can only be used
--- on socket descriptors and cannot take more than 64 descriptors per call.
--- @usage This function is not signal-protected and may fail with EINTR.
--- @param fds	Table containing one or more tables containing <ul>
--- <li> fd = I/O Descriptor [Socket Object, File Object (POSIX)]</li>
--- <li> events = events to wait for (bitfield generated with poll_flags)</li>
--- </ul>
--- @param timeout Timeout in milliseconds
--- @name nixio.poll
--- @see nixio.poll_flags
--- @return number of ready IO descriptors
--- @return the fds-table with revents-fields set
-
---- (POSIX) Clone the current process.
--- @class function
--- @name nixio.fork
--- @return	the child process id for the parent process, 0 for the child process
-
---- (POSIX) Send a signal to one or more processes.
--- @class function
--- @name nixio.kill
--- @param	target	Target process of process group.
--- @param	signal	Signal to send
--- @return	true
-
---- (POSIX) Get the parent process id of the current process.
--- @class function
--- @name nixio.getppid
--- @return	parent process id
-
---- (POSIX) Get the user id of the current process.
--- @class function
--- @name nixio.getuid
--- @return	process user id
-
---- (POSIX) Get the group id of the current process.
--- @class function
--- @name nixio.getgid
--- @return	process group id
-
---- (POSIX) Set the group id of the current process.
--- @class function
--- @name nixio.setgid
--- @param gid New Group ID
--- @return	true
-
---- (POSIX) Set the user id of the current process.
--- @class function
--- @name nixio.setuid
--- @param gid New User ID
--- @return	true
-
---- (POSIX) Change priority of current process.
--- @class function
--- @name nixio.nice
--- @param nice Nice Value
--- @return	true
-
---- (POSIX) Create a new session and set the process group ID.
--- @class function
--- @name nixio.setsid
--- @return	session id
-
---- (POSIX) Wait for a process to change state.
--- @class function
--- @name nixio.waitpid
--- @usage	If the "nohang" is given this function becomes non-blocking.
--- @param pid Process ID	(optional, default: any childprocess)
--- @param flag1 Flag	(optional) ["nohang", "untraced", "continued"]
--- @param ...	More Flags [-"-]
--- @return	process id of child or 0 if no child has changed state
--- @return  ["exited", "signaled", "stopped"]
--- @return  [exit code, terminate signal, stop signal]
-
---- (POSIX) Get process times.
--- @class function
--- @name nixio.times
--- @return Table containing: <ul>
--- <li>utime = user time</li>
--- <li>utime = system time</li>
--- <li>cutime = children user time</li>
--- <li>cstime = children system time</li>
--- </ul>
-
---- (POSIX) Get information about current system and kernel.
--- @class function
--- @name nixio.uname
--- @return Table containing: <ul>
--- <li>sysname = operating system</li>
--- <li>nodename = network name (usually hostname)</li>
--- <li>release = OS release</li>
--- <li>version = OS version</li>
--- <li>machine = hardware identifier</li>
--- </ul>
-
---- Change the working directory.
--- @class function
--- @name nixio.chdir
--- @param	path New working directory
--- @return true
-
---- Ignore or use set the default handler for a signal.
--- @class function
--- @name nixio.signal
--- @param signal	Signal
--- @param handler	["ign", "dfl"]
--- @return true
-
---- Get the ID of the current process.
--- @class function
--- @name nixio.getpid
--- @return process id
-
---- Get the current working directory.
--- @class function
--- @name nixio.getcwd
--- @return workign directory
-
---- Get the current environment table or a specific environment variable.
--- @class function
--- @name nixio.getenv
--- @param variable Variable (optional)
--- @return environment table or single environment variable
-
---- Set or unset a environment variable.
--- @class function
--- @name nixio.setenv
--- @usage The environment variable will be unset if value is ommited.
--- @param variable	Variable
--- @param value		Value (optional)
--- @return true
-
---- Execute a file to replace the current process.
--- @class function
--- @name nixio.exec
--- @usage The name of the executable is automatically passed as argv[0]
--- @usage This function does not return on success.
--- @param executable Executable
--- @param ... Parameters
-
---- Invoke the shell and execute a file to replace the current process.
--- @class function
--- @name nixio.execp
--- @usage The name of the executable is automatically passed as argv[0]
--- @usage This function does not return on success.
--- @param executable Executable
--- @param ... Parameters
-
---- Execute a file with a custom environment to replace the current process.
--- @class function
--- @name nixio.exece
--- @usage The name of the executable is automatically passed as argv[0]
--- @usage This function does not return on success.
--- @param executable Executable
--- @param arguments Argument Table
--- @param environment Environment Table (optional)
-
---- Sets the file mode creation mask.
--- @class function
--- @name nixio.umask
--- @param mask	New creation mask (see chmod for format specifications)
--- @return the old umask as decimal mode number
--- @return the old umask as mode string
-
---- (Linux) Get overall system statistics.
--- @class function
--- @name nixio.sysinfo
--- @return Table containing: <ul>
--- <li>uptime = system uptime in seconds</li>
--- <li>loads = {loadavg1, loadavg5, loadavg15}</li>
--- <li>totalram = total RAM</li>
--- <li>freeram = free RAM</li>
--- <li>sharedram = shared RAM</li>
--- <li>bufferram = buffered RAM</li>
--- <li>totalswap = total SWAP</li>
--- <li>freeswap = free SWAP</li>
--- <li>procs = number of running processes</li>
--- </ul>
-
---- Create a new socket.
--- @class function
--- @name nixio.socket
--- @param domain	Domain ["inet", "inet6", "unix"]
--- @param type		Type   ["stream", "dgram", "raw"]
--- @return	Socket Object
-
---- (POSIX) Send data from a file to a socket in kernel-space.
--- @class function
--- @name nixio.sendfile
--- @param socket Socket Object
--- @param file	 File Object
--- @param length Amount of data to send (in Bytes).
--- @return bytes sent
-
---- (Linux) Send data from / to a pipe in kernel-space.
--- @class function
--- @name nixio.splice
--- @param fdin	Input I/O descriptor 
--- @param fdout	Output I/O descriptor
--- @param length Amount of data to send (in Bytes).
--- @param flags (optional, bitfield generated by splice_flags)
--- @see nixio.splice_flags
--- @return bytes sent
-
---- (Linux) Generate a flag bitfield for a call to splice.
--- @class function
--- @name nixio.splice_flags
--- @param flag1	First Flag	["move", "nonblock", "more"]
--- @param ...	More flags	[-"-]
--- @see nixio.splice
--- @return Flag bitfield
-
---- (POSIX) Open a connection to the system logger.
--- @class function
--- @name nixio.openlog
--- @param ident	Identifier
--- @param flag1	Flag 1 ["cons", "nowait", "pid", "perror", "ndelay", "odelay"]
--- @param ...	More flags [-"-]
-
---- (POSIX) Close the connection to the system logger.
--- @class function
--- @name nixio.closelog
-
---- (POSIX) Write a message to the system logger.
--- @class function
--- @name nixio.syslog
--- @param priority Priority ["emerg", "alert", "crit", "err", "warning",
--- "notice", "info", "debug"]
--- @param message
-
---- (POSIX) Set the logmask of the system logger for current process.
--- @class function
--- @name nixio.setlogmask
--- @param priority Priority ["emerg", "alert", "crit", "err", "warning",
--- "notice", "info", "debug"]
-
---- (POSIX) Encrypt a user password.
--- @class function
--- @name nixio.crypt
--- @param key Key
--- @param salt Salt
--- @return password hash
-
---- (POSIX) Get all or a specific user group.
--- @class function
--- @name nixio.getgr
--- @param group Group ID or groupname (optional)
--- @return Table containing: <ul>
--- <li>name = Group Name</li>
--- <li>gid = Group ID</li>
--- <li>passwd = Password</li>
--- <li>mem = {Member #1, Member #2, ...}</li>
--- </ul>
-
---- (POSIX) Get all or a specific user account.
--- @class function
--- @name nixio.getpw
--- @param user User ID or username (optional)
--- @return Table containing: <ul>
--- <li>name = Name</li>
--- <li>uid = ID</li>
--- <li>gid = Group ID</li>
--- <li>passwd = Password</li>
--- <li>dir = Home directory</li>
--- <li>gecos = Information</li>
--- <li>shell = Shell</li>
--- </ul>
-
---- (Linux, Solaris) Get all or a specific shadow password entry.
--- @class function
--- @name nixio.getsp
--- @param user username (optional)
--- @return Table containing: <ul>
--- <li>namp = Name</li>
--- <li>expire = Expiration Date</li>
--- <li>flag = Flags</li>
--- <li>inact = Inactivity Date</li>
--- <li>lstchg = Last change</li>
--- <li>max = Maximum</li>
--- <li>min = Minimum</li>
--- <li>warn = Warning</li>
--- <li>pwdp = Password Hash</li>
--- </ul>
-
---- Create a new TLS context.
--- @class function
--- @name nixio.tls
--- @param mode TLS-Mode ["client", "server"]
--- @return TLSContext Object