/*      $OpenBSD: sprint.c,v 1.16 2015/08/20 22:32:41 deraadt Exp $     */

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <sys/time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <err.h>
#include "finger.h"
#include "extern.h"

void
sflag_print(void)
{
        PERSON *pn;
        WHERE *w;
        int cnt;
        char *p;
        PERSON **list;

        list = sort();
        /*
         * short format --
         *      login name
         *      real name
         *      terminal name (the XX of ttyXX)
         *      if terminal writeable (add an '*' to the terminal name
         *              if not)
         *      if logged in show idle time and day logged in, else
         *              show last login date and time.  If > 6 months,
         *              show year instead of time.  If < 6 days,
         *              show day name instead of month & day.
         *      if -h given
         *              remote host
         *      else if -o given (overriding -h) (default)
         *              office location
         *              office phone
         */
#define NAME_WIDTH      8
#define MAXREALNAME     20
#define MAXHOSTNAME     20
        (void)printf("%-*.*s %-*s %s %s\n",
            NAME_WIDTH, UT_NAMESIZE, "Login", MAXREALNAME,
            "Name", "Tty  Idle  Login Time  ",
            (oflag) ? "Office     Office Phone" : "Where");
        for (cnt = 0; cnt < entries; ++cnt) {
                pn = list[cnt];
                for (w = pn->whead; w != NULL; w = w->next) {
                        (void)printf("%-*.*s %-*.*s ",
                            NAME_WIDTH, UT_NAMESIZE, pn->name,
                            MAXREALNAME, MAXREALNAME,
                            pn->realname ? pn->realname : "");
                        if (!w->loginat) {
                                (void)printf("  *     *  No logins   ");
                                goto office;
                        }
                        (void)putchar(w->info == LOGGEDIN && !w->writable ?
                            '*' : ' ');
                        if (*w->tty)
                                (void)printf("%-2.2s ",
                                    w->tty[0] != 't' || w->tty[1] != 't' ||
                                    w->tty[2] != 'y' ? w->tty : w->tty + 3);
                        else
                                (void)printf("   ");
                        if (w->info == LOGGEDIN) {
                                stimeprint(w);
                                (void)printf("  ");
                        } else
                                (void)printf("    *  ");
                        p = ctime(&w->loginat);

                        if (now - w->loginat < SECSPERDAY * 6)
                                (void)printf("   %.3s", p);
                        else
                                (void)printf("%.6s", p + 4);
                        if (now - w->loginat >= SIXMONTHS)
                                (void)printf(" %.4s ", p + 20);
                        else
                                (void)printf(" %.5s", p + 11);
office:
                        putchar(' ');
                        if (oflag) {
                                if (pn->office)
                                        (void)printf("%-10.10s", pn->office);
                                else if (pn->officephone)
                                        (void)printf("%-10.10s", " ");
                                if (pn->officephone)
                                        (void)printf(" %-.15s",
                                            prphone(pn->officephone));
                        } else
                                (void)printf("%.*s", MAXHOSTNAME, w->host);
                        putchar('\n');
                }
        }
}

PERSON **
sort(void)
{
        PERSON *pn, **lp;
        PERSON **list;

        if (!(list = calloc((u_int)entries, sizeof(PERSON *))))
                err(1, "malloc");
        for (lp = list, pn = phead; pn != NULL; pn = pn->next)
                *lp++ = pn;
        (void)qsort(list, entries, sizeof(PERSON *), psort);
        return (list);
}

int
psort(const void *p, const void *t)
{
        return (strcmp((*(PERSON **)p)->name, (*(PERSON **)t)->name));
}

void
stimeprint(WHERE *w)
{
        struct tm *delta;

        delta = gmtime(&w->idletime);
        if (!delta->tm_yday) {
                if (!delta->tm_hour) {
                        if (!delta->tm_min)
                                (void)printf("    -");
                        else
                                (void)printf("%5d", delta->tm_min);
                 } else {
                        (void)printf("%2d:%02d",
                            delta->tm_hour, delta->tm_min);
                 }
        } else
                (void)printf("%4dd", delta->tm_yday);
}