source: trunk/minix/commands/talkd/talk.h@ 20

/* talk.h Copyright Michael Temari 07/22/1996 All Rights Reserved */

#define USER_SIZE       12
#define TTY_SIZE        16
#define HOST_SIZE       255

struct osockaddr {
        u16_t sa_family;
        u16_t sin_port;
        ipaddr_t sin_addr;
        char junk[8];
};

struct talk_request {
        u8_t version;
        u8_t type;
        u8_t answer;
        u8_t junk;
        u32_t id;
        struct osockaddr addr;
        struct osockaddr ctl_addr;
        long pid;
        char    luser[USER_SIZE];
        char    ruser[USER_SIZE];
        char    rtty[TTY_SIZE];
};

struct talk_reply {
        u8_t version;
        u8_t type;
        u8_t answer;
        u8_t junk;
        u32_t id;
        struct osockaddr addr;
};

#define TALK_VERSION    1

/* message type values */
#define LEAVE_INVITE    0       /* leave invitation with server */
#define LOOK_UP         1       /* check for invitation by callee */
#define DELETE          2       /* delete invitation by caller */
#define ANNOUNCE        3       /* announce invitation by caller */

/* answer values */
#define SUCCESS         0       /* operation completed properly */
#define NOT_HERE        1       /* callee not logged in */
#define FAILED          2       /* operation failed for unexplained reason */
#define MACHINE_UNKNOWN 3       /* caller's machine name unknown */
#define PERMISSION_DENIED 4     /* callee's tty doesn't permit announce */
#define UNKNOWN_REQUEST 5       /* request has invalid type value */
#define BADVERSION      6       /* request has invalid protocol version */
#define BADADDR         7       /* request has invalid addr value */
#define BADCTLADDR      8       /* request has invalid ctl_addr value */

#define MAX_LIFE        60      /* max time daemon saves invitations */
#define RING_WAIT       30      /* time to wait before resending invitation */