cb_call_struct Structure for X.25

Files Reference

cb_call_struct Structure for X.25

Purpose

Used by the x25_call, x25_call_accept, and x25_receive subroutines to pass the X.25 port name, called and calling addresses, facilities, and user data.

Syntax

#define X25FLG_D_BIT       
 0x00000001
#define X25FLG_LINK_NAME    0x00000002
#define X25FLG_CALLED_ADDR  0x00000004
#define X25FLG_CALLING_ADDR 0x00000008
#define X25FLG_CB_FAC       0x00000010
#define X25FLG_USER_DATA    0x00000020

struct cb_call_struct
{
  unsigned long flags;
  char *link_name;
  char *called_addr;
  char *calling_addr;
  struct cb_fac_struct *cb_fac;
  int user_data_len;
  unsigned char *user_data;
} ;

Flags

X25_FLG_D_BIT	Indicates that the call uses D-bit procedures.
X25_FLG_LINK_NAME	Indicates that the `link_name` field is used.
X25_FLG_CALLED_ADDR	Indicates that the `called_addr` field is used.
X25_FLG_CALLING_ADDR	Indicates that the `calling_addr` field is used.
X25_FLG_CB_FAC	Indicates that the `cb_fac` field is used.
X25_FLG_USER_DATA	Indicates that the `user_data` field is used.

Fields

`flags`	Notification to the API that the associated field has been used.
`link_name`	Name of the X.25 port used for an incoming call. Note: This is set to null on received packets.
`called_addr`	Pointer to the network user address (NUA) of the called data terminal equipment (DTE). The address is given in ASCIIZ format.
`calling_addr`	Pointer to the NUA of the calling DTE. The address is given in ASCIIZ format.
`cb_fac`	Pointer to the facilities information in the cb_fac_struct structure.
`user_data_len`	Field length for call user data (CUD).
`user_data`	Pointer to call user data (CUD).

Related Information

The x25sdefs.h file.

The cb_fac_struct structure, cb_clear_struct structure.