Module bio

bio module to mapping a BIO in openssl to a lua object.

Usage:

    bio = require'openssl'.bio
    

Functions

mem ([data=nil]) make string as bio object
socket (fd[, support='noclose']) make tcp bio from socket fd
dgram (fd[, support='noclose']) make dgram bio from socket fd
fd (fd[, support='noclose']) make socket or file bio with fd
file (file[, mode='r']) make file object with file name or path
accept (host_port) make tcp listen socket
connect (host_addr[, connect=true]) make tcp client socket
connect (table[, connect=true]) make tcp client socket
filter (mode) make base64 or buffer bio, which can append to an io BIO object
filter (mode, md_alg) make digest bio, which can append to an io BIO object
filter (mode, s[, support='noclose']) make ssl bio
filter (mode, key, iv[, encrypt=true]) make cipher filter bio object

Class bio

bio:read (len) read data from bio object
bio:gets ([max=256]) get line from bio object
bio:write (data) write data to bio object
bio:puts (data) put line to bio object
bio:flush () flush buffer of bio object
bio:type () get type of bio
bio:nbio (nonblock) set nonblock for bio object
bio:reset () reset bio
bio:push (append) push bio append to chain of bio, if want to free a chain use free_all()
bio:pop (toremove) remove bio from chain
bio:get_mem () get mem data, only support mem bio object
bio:accept ([setup=false]) setup ready and accept client connect
bio:shutdown () shutdown SSL or TCP connection
bio:get_ssl () get ssl object assosited with bio object
bio:connect () do TCP or SSL connect
bio:handshake () do handshake of TCP or SSL connection
bio:fd () get fd of bio object
bio:fd (fd) set fd of bio object
bio:set_callback (callback) set callback function of bio information
bio:pending () return pending length of bytes to read and write
bio:close () close bio


Functions

mem ([data=nil])
make string as bio object

Parameters:

  • data string , it will be memory buffer data (default nil)

Returns:

    bio it can be input or output object
socket (fd[, support='noclose'])
make tcp bio from socket fd

Parameters:

  • fd number
  • support flag ‘close’ or ‘noclose’ when close or gc (default 'noclose')

Returns:

    bio
dgram (fd[, support='noclose'])
make dgram bio from socket fd

Parameters:

  • fd number
  • support flag ‘close’ or ‘noclose’ when close or gc (default 'noclose')

Returns:

    bio
fd (fd[, support='noclose'])
make socket or file bio with fd

Parameters:

  • fd number
  • support flag ‘close’ or ‘noclose’ when close or gc (default 'noclose')

Returns:

    bio
file (file[, mode='r'])
make file object with file name or path

Parameters:

Returns:

    bio
accept (host_port)
make tcp listen socket

Parameters:

  • host_port string address like ‘host:port’

Returns:

    bio
connect (host_addr[, connect=true])
make tcp client socket

Parameters:

  • host_addr string addrees like ‘host:port’
  • connect boolean default connect immediately (default true)

Returns:

    bio
connect (table[, connect=true])
make tcp client socket

Parameters:

  • table address with hostname, ip, port filed
  • connect boolean default connect immediately (default true)

Returns:

    bio
filter (mode)
make base64 or buffer bio, which can append to an io BIO object

Parameters:

  • mode string support ‘base64’ or ‘buffer’

Returns:

    bio
filter (mode, md_alg)
make digest bio, which can append to an io BIO object

Parameters:

Returns:

    bio
filter (mode, s[, support='noclose'])
make ssl bio

Parameters:

  • mode string must be ‘ssl’
  • s ssl
  • support flag ‘close’ or ‘noclose’ when close or gc (default 'noclose')

Returns:

    bio
filter (mode, key, iv[, encrypt=true])
make cipher filter bio object

Parameters:

Returns:

    bio

Class bio

openssl.bio object
bio:read (len)
read data from bio object

Parameters:

  • len number

Returns:

    string string length may be less than param len
bio:gets ([max=256])
get line from bio object

Parameters:

  • max number line len (default 256)

Returns:

    string string length may be less than param len
bio:write (data)
write data to bio object

Parameters:

Returns:

    number length success write
bio:puts (data)
put line to bio object

Parameters:

Returns:

    number length success write
bio:flush ()
flush buffer of bio object

Returns:

    boolean true for success, others for fail
bio:type ()
get type of bio

Returns:

    string
bio:nbio (nonblock)
set nonblock for bio object

Parameters:

  • nonblock boolean

Returns:

    boolean result, true for success, others for fail
bio:reset ()
reset bio
bio:push (append)
push bio append to chain of bio, if want to free a chain use free_all()

Parameters:

Returns:

    bio
bio:pop (toremove)
remove bio from chain

Parameters:

bio:get_mem ()
get mem data, only support mem bio object

Returns:

    string
bio:accept ([setup=false])
setup ready and accept client connect

Parameters:

  • setup boolean true for setup accept bio, false or none will accept client connect (default false)

Returns:

    boolean result only when setup is true

Or

    bio accpeted bio object
bio:shutdown ()
shutdown SSL or TCP connection
bio:get_ssl ()
get ssl object assosited with bio object

Returns:

    ssl
bio:connect ()
do TCP or SSL connect

Returns:

    booolean result true for success and others for fail
bio:handshake ()
do handshake of TCP or SSL connection

Returns:

    boolean result true for success, and others for fail
bio:fd ()
get fd of bio object

Returns:

    number
bio:fd (fd)
set fd of bio object

Parameters:

  • fd number

Returns:

    number fd
bio:set_callback (callback)
set callback function of bio information

Parameters:

  • callback function

Returns:

    boolean result true for success, and others for fail
bio:pending ()
return pending length of bytes to read and write

Returns:

    number pending of read, followed by pending of write
bio:close ()
close bio
generated by LDoc 1.5.0 Last updated 2024-05-16 23:31:39