DIGITAL TCP/IP Services for OpenVMS
System Services and C Socket Programming

• fdopen function
• FIONREAD command
• Flags
  • $GETDVI #1
  • $GETDVI #2
  • $GETDVIW
  • IO$_DEACCESS #1
  • IO$_DEACCESS #2
  • IO$_DEACCESS #3
  • IO$_READVBLK
    • p4 argument
  • IO$_READVBLOCK
    • OOB character
  • IO$_WRITEVBLK
  • $QIO event
  • $QIO service
  • recv()socket routine
  • recvfrom()socket routine
  • recvmsg() socket routine
  • send() routine
  • sendmsg() routine
  • $SYNCH
• Flush data from queue
• Functions
  • socket #1
  • socket #2

• $GETDVI
  • arguments #1
  • arguments #2
  • arguments #3
  • AST parameter
  • AST service routine
  • astadr parameter
  • astprm parameter
  • buffer address
  • buffer length
  • chan
  • channel
  • channel number
  • channel parameter
  • condition values #1
  • condition values #2
  • condition values #3
  • condition values #4
  • description
  • device characteristics
  • device name
  • device types #1
  • device types #2
  • event flag #1
  • event flag #2
  • identify a device to
  • item codes #1
  • item codes #2
  • item codes #3
  • item descriptor fields #1
  • item descriptor fields #2
  • item descriptors
  • item list
  • local node information
  • nullarg parameter
  • obtaining internet pseudodevice information
  • online device
  • return-length address
  • symbolic names #1
  • symbolic names #2
  • template device
• $GETDVIW
  • arguments
  • condition values #1
  • condition values #2
  • description
• gethostbyaddr()
  • socket routine
• gethostbyname()
  • description
• gethostname()
  • socket routine
• getnetbyaddr()
  • description
• getnetbyname()
  • description
• getnetent()
  • description
• getpeername()
  • description
• getpeername()
  • routine example
• getprotobyname()
  • description
• getprotobynumber()
  • description
• getprotoent()
  • description
• getservbyname()
  • description
• getservbyport()
  • description
• getsockname()
  • description
• getsockname()
  • routine example
• getsockopt()
  • description
• getsockopt()
  • routine example

• Header files #1
• Header files #2
• Header files #3
• Host addresses
  • mapping for client systems
• hostent structure
• htonl() socket routine
• htons()
  • description

• I/O
  • assigning a channel
  • cancel
  • canceling a request
  • channels
    • releasing
  • control parameters
  • SET CHARACTERISTICS function
  • SET MODE function
  • status block #1
  • status block #2
  • status block #3
  • status block #4
• I/O functions
  • See Internet I/O function codes
• #include files
• #include types
• INET device
  • cancel I/O channel
• INET subfunction codes
• inet_addr()
  • description
• inet_lnaof() socket routine
• inet_makeaddr()
  • description
• inet_netof()description
• inet_network()
  • description
• inet_ntoa()
  • description
• Internet
  • address
    • specifying a local host
  • application programs #1
  • application programs #2
  • definition file examples #1
  • definition file examples #2
  • definition file examples #3
  • deleting device
  • protocols
  • pseudodevice
    • assigning a channel
• Internet I/O function codes
• Internet pseudodevice
  • See device socket
• in_addr structure
• IO$ACCESS
• IO$DEACCESS
• IO$M_ACCEPT modifier
  • accepting a connection request
• IO$M_INTERRUPT #1
• IO$M_INTERRUPT #2
  • examples #1
  • examples #2
  • reading out-of-band data #1
  • reading out-of-band data #2
  • specifying an out-of-band data write
• IO$M_NOW
• IO$M_OUTBAND
  • arguments
  • condition values
• IO$M_READATTN
  • access modes
  • arguments
  • considerations
  • enable
  • request
• IO$M_SHUTDOWN
• IO$M_WRTATTN
  • access modes
  • arguments
  • condition values
  • enable the AST
• IO$READVBLK
  • arguments
• IO$_ACCESS
  • arguments #1
  • arguments #2
  • condition values
  • device channel
  • error codes
  • establishing a pseudo connection
  • function modifiers
  • initiating a connection
  • IO$M_ACCEPT function modifier
  • remote socket name
  • timeout intervals
• IO$_ACPCONTROL
  • arguments
  • C programming example
  • condition values
  • INET call codes
  • MACRO-32 example
  • used with the BIND database
• IO$_DEACCESS
  • deleting a socket
  • description
  • function modifiers
  • linger option
  • shutdown flags
    • IO$M_SHUTDOWN #1
    • IO$M_SHUTDOWN #2
  • shutting down a connection #1
  • shutting down a connection #2
• IO$_READVBLK
  • arguments #1
  • arguments #2
  • C programming example
  • condition values
  • example
    • OpenVMS
  • flags
  • flush data from queue
  • function modifiers
  • IO$M_INTERRUPT modifier #1
  • IO$M_INTERRUPT modifier #2
  • item_list_2
  • item_list_3 descriptor
  • MACRO-32 example
  • p1 argument #1
  • p1 argument #2
  • p2 argument #1
  • p2 argument #2
  • p3 argument #1
  • p3 argument #2
  • p4 argument
  • p6 argument
  • parameters
  • specifying a logical read operation
  • specifying a virtual read operation
  • specifying an output parameter list
  • timeout interval
  • UCX$C_MSG_BLOCKALL flag
  • UCX$C_MSG_NBIO flag
  • UCX$C_MSG_OOB flag
  • UCX$C_MSG_PEEK flag
  • UCX$C_MSG_PURGE flag
  • UCX$C_SOCK_NAME
  • UCX$M_PEEK modifier
• IO$_SENSECHAR
  • arguments
  • condition values
  • item_list_3 descriptor
  • linger option
  • parameter types
  • port numbers option
• IO$_SENSEMODE
  • arguments
  • condition values
  • item_list_3 descriptor
  • linger option
  • obtaining device socket information
  • parameter types
  • port numbers option
  • reading out-of-band data
  • specifying an output parameter list
• IO$_SETCHAR
  • address family support
  • arguments #1
  • arguments #2
  • arguments #3
  • binding a socket
  • communications socket options
  • condition values
  • creating a socket
  • IP options
  • p2 argument
  • privileges
  • protocols #1
  • protocols #2
  • protocols #3
  • socket type
  • TCP/IP options
  • UDP/IP options
• IO$_SETMODE
  • address family support
  • arguments #1
  • arguments #2
  • binding a socket
  • broadcasting datagrams
  • communications socket options
  • condition values #1
  • condition values #2
  • creating a socket
  • IP options
  • p2 argument
  • p5 argument
  • privileges
  • protocols #1
  • protocols #2
  • protocols #3
  • sending broadcast datagrams
  • set as listener
  • setting up socket for listening
  • socket type
  • TCP/IP options
  • UDP/IP options
  • used in broadcast messages
• IO$_SETMODE|IO$M_OUTBAND
• IO$_SETMODE|IO$M_READATTN
• IO$_SETMODE|IO$M_WRTATTN
• IO$_WRITEVBLK
  • access modes
  • arguments
  • broadcast messages
  • C example #1
  • C example #2
  • condition values
  • flags
  • function modifiers
  • IO$M_INTERRUPT modifier
  • MACRO-32 example
  • multiple buffers
  • p5 argument
  • specify a write operation
  • used in connection requests
• IOCTL
  • commands
    • IO$_SETCHAR
    • IO$_SETMODE
  • example
  • parameters
    • description
    • specifying
    • types
  • SIOCATMARK command
  • subfunction
• iosb
  • argument #1
  • argument #2
  • arguments #1
  • arguments #2
  • message length
• iovec structure
• IP
  • parameter types
  • protocol options
• Item list
  • specifying
• Item list descriptors
  • defined
  • item_list_2
  • item_list_3
  • using descriptors