commands/talkd/talk.h

   1 /* talk.h Copyright Michael Temari 07/22/1996 All Rights Reserved */
   2
   3 #define USER_SIZE       12
   4 #define TTY_SIZE        16
   5 #define HOST_SIZE       255
   6
   7 struct osockaddr {
   8         u16_t sa_family;
   9         u16_t sin_port;
  10         ipaddr_t sin_addr;
  11         char junk[8];
  12 };
  13
  14 struct talk_request {
  15         u8_t version;
  16         u8_t type;
  17         u8_t answer;
  18         u8_t junk;
  19         u32_t id;
  20         struct osockaddr addr;
  21         struct osockaddr ctl_addr;
  22         long pid;
  23         char    luser[USER_SIZE];
  24         char    ruser[USER_SIZE];
  25         char    rtty[TTY_SIZE];
  26 };
  27
  28 struct talk_reply {
  29         u8_t version;
  30         u8_t type;
  31         u8_t answer;
  32         u8_t junk;
  33         u32_t id;
  34         struct osockaddr addr;
  35 };
  36
  37 #define TALK_VERSION    1
  38
  39 /* message type values */
  40 #define LEAVE_INVITE    0       /* leave invitation with server */
  41 #define LOOK_UP         1       /* check for invitation by callee */
  42 #define DELETE          2       /* delete invitation by caller */
  43 #define ANNOUNCE        3       /* announce invitation by caller */
  44
  45 /* answer values */
  46 #define SUCCESS         0       /* operation completed properly */
  47 #define NOT_HERE        1       /* callee not logged in */
  48 #define FAILED          2       /* operation failed for unexplained reason */
  49 #define MACHINE_UNKNOWN 3       /* caller's machine name unknown */
  50 #define PERMISSION_DENIED 4     /* callee's tty doesn't permit announce */
  51 #define UNKNOWN_REQUEST 5       /* request has invalid type value */
  52 #define BADVERSION      6       /* request has invalid protocol version */
  53 #define BADADDR         7       /* request has invalid addr value */
  54 #define BADCTLADDR      8       /* request has invalid ctl_addr value */
  55
  56 #define MAX_LIFE        60      /* max time daemon saves invitations */
  57 #define RING_WAIT       30      /* time to wait before resending invitation */