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Annotation of src/usr.bin/finger/finger.h, Revision 1.1.1.1

1.1       deraadt     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, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *     This product includes software developed by the University of
                     19:  *     California, Berkeley and its contributors.
                     20:  * 4. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  *
                     36:  *     from: @(#)finger.h      5.5 (Berkeley) 6/1/90
                     37:  *     $Id: finger.h,v 1.3 1993/10/07 19:58:30 brezak Exp $
                     38:  */
                     39:
                     40: #include <pwd.h>
                     41: #include <utmp.h>
                     42:
                     43: #define _PATH_MAILSPOOL "/var/mail"
                     44:
                     45: /*
                     46:  * All unique persons are linked in a list headed by "head" and linkd
                     47:  * by the "next" field, as well as kept in a hash table.
                     48:  */
                     49:
                     50: typedef struct person {
                     51:        struct person *next;            /* link to next person */
                     52:        struct person *hlink;           /* link to next person in hash bucket */
                     53:        uid_t uid;                      /* user id */
                     54:        char *dir;                      /* user's home directory */
                     55:        char *homephone;                /* pointer to home phone no. */
                     56:        char *name;                     /* login name */
                     57:        char *office;                   /* pointer to office name */
                     58:        char *officephone;              /* pointer to office phone no. */
                     59:        char *realname;                 /* pointer to full name */
                     60:        char *shell;                    /* user's shell */
                     61:        time_t mailread;                /* last time mail was read */
                     62:        time_t mailrecv;                /* last time mail was read */
                     63:        struct where *whead, *wtail;    /* list of where he is or has been */
                     64: } PERSON;
                     65:
                     66: enum status { LASTLOG, LOGGEDIN };
                     67:
                     68: typedef struct where {
                     69:        struct where *next;             /* next place he is or has been */
                     70:        enum status info;               /* type/status of request */
                     71:        short writable;                 /* tty is writable */
                     72:        time_t loginat;                 /* time of (last) login */
                     73:        time_t idletime;                /* how long idle (if logged in) */
                     74:        char tty[UT_LINESIZE+1];        /* null terminated tty line */
                     75:        char host[UT_HOSTSIZE+1];       /* null terminated remote host name */
                     76: } WHERE;
                     77:
                     78: #define        HBITS   8                       /* number of bits in hash code */
                     79: #define        HSIZE   (1 << 8)                /* hash table size */
                     80: #define        HMASK   (HSIZE - 1)             /* hash code mask */
                     81:
                     82: PERSON *htab[HSIZE];                   /* the buckets */
                     83: PERSON *phead, *ptail;                 /* the linked list of all people */
                     84:
                     85: int entries;                           /* number of people */
                     86:
                     87: PERSON *enter_person(), *find_person(), *palloc();
                     88: WHERE *walloc();
                     89:
                     90: extern char tbuf[1024];                        /* temp buffer for anybody */