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Annotation of 43BSDReno/usr.bin/finger/finger.h, revision 1.1.1.1

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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