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Annotation of 43BSDReno/usr.bin/finger/finger.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1989 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This code is derived from software contributed to Berkeley by
        !             6:  * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms are permitted provided
        !             9:  * that: (1) source distributions retain this entire copyright notice and
        !            10:  * comment, and (2) distributions including binaries display the following
        !            11:  * acknowledgement:  ``This product includes software developed by the
        !            12:  * University of California, Berkeley and its contributors'' in the
        !            13:  * documentation or other materials provided with the distribution and in
        !            14:  * all advertising materials mentioning features or use of this software.
        !            15:  * Neither the name of the University nor the names of its contributors may
        !            16:  * be used to endorse or promote products derived from this software without
        !            17:  * specific prior written permission.
        !            18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            19:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            20:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            21:  *
        !            22:  *     @(#)finger.h    5.5 (Berkeley) 6/1/90
        !            23:  */
        !            24: 
        !            25: #include <pwd.h>
        !            26: #include <utmp.h>
        !            27: 
        !            28: /*
        !            29:  * All unique persons are linked in a list headed by "head" and linkd
        !            30:  * by the "next" field, as well as kept in a hash table.
        !            31:  */
        !            32: 
        !            33: typedef struct person {
        !            34:        struct person *next;            /* link to next person */
        !            35:        struct person *hlink;           /* link to next person in hash bucket */
        !            36:        uid_t uid;                      /* user id */
        !            37:        char *dir;                      /* user's home directory */
        !            38:        char *homephone;                /* pointer to home phone no. */
        !            39:        char *name;                     /* login name */
        !            40:        char *office;                   /* pointer to office name */
        !            41:        char *officephone;              /* pointer to office phone no. */
        !            42:        char *realname;                 /* pointer to full name */
        !            43:        char *shell;                    /* user's shell */
        !            44:        struct where *whead, *wtail;    /* list of where he is or has been */
        !            45: } PERSON;
        !            46: 
        !            47: enum status { LASTLOG, LOGGEDIN };
        !            48: 
        !            49: typedef struct where {
        !            50:        struct where *next;             /* next place he is or has been */
        !            51:        enum status info;               /* type/status of request */
        !            52:        short writable;                 /* tty is writable */
        !            53:        time_t loginat;                 /* time of (last) login */
        !            54:        time_t idletime;                /* how long idle (if logged in) */
        !            55:        char tty[UT_LINESIZE+1];        /* null terminated tty line */
        !            56:        char host[UT_HOSTSIZE+1];       /* null terminated remote host name */
        !            57: } WHERE;
        !            58: 
        !            59: #define        HBITS   8                       /* number of bits in hash code */
        !            60: #define        HSIZE   (1 << 8)                /* hash table size */
        !            61: #define        HMASK   (HSIZE - 1)             /* hash code mask */
        !            62: 
        !            63: PERSON *htab[HSIZE];                   /* the buckets */
        !            64: PERSON *phead, *ptail;                 /* the linked list of all people */
        !            65: 
        !            66: int entries;                           /* number of people */
        !            67: 
        !            68: PERSON *enter_person(), *find_person(), *palloc();
        !            69: WHERE *walloc();
        !            70: 
        !            71: extern char tbuf[1024];                        /* temp buffer for anybody */

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