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sprint.c

/*
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the University of
 *    California, Berkeley and its contributors.
 * 4. 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.
 */

#ifndef lint
/*static char sccsid[] = "from: @(#)sprint.c    5.8 (Berkeley) 12/4/90";*/
char sprint_rcsid[] = "$Id: sprint.c,v 1.10 1999/12/12 18:59:33 dholland Exp $";
#endif /* not lint */

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

static void stimeprint(WHERE *w);
static int psort(const void *a, const void *b);
static PERSON **sort(void);

void sflag_print(void) {
      register PERSON *pn;
      register WHERE *w;
      register char *p;
      PERSON **list;
      int maxlname, maxrname, space, cnt;

      list = sort();
      /*
       * short format --
       *    login name
       *    real name
       *    terminal name
       *    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 moths,
       *          show year instead of time.
       *    office location
       *    office phone
       */

      maxlname = maxrname = sizeof("Login  ");
      for (cnt = 0; cnt < entries; ++cnt) {
            int l;
            pn = list[cnt];
            l = pn->name ? strlen(pn->name) : 1;
            if (l > maxlname) maxlname = l;
            l = pn->realname ? strlen(pn->realname) : 1;
            if (l > maxrname) maxrname = l;
      }
      /* prevent screen overflow */
      space = getscreenwidth() - 50;
      if (maxlname + maxrname > space) maxrname = space - maxlname;

      /* add a space if there's room */
      if (maxlname + maxrname < space-2) { maxlname++; maxrname++; }

      (void)xprintf("%-*s %-*s %s\n", maxlname, "Login", maxrname,
          "Name", " Tty      Idle  Login Time   Office     Office Phone");
      for (cnt = 0; cnt < entries; ++cnt) {
            pn = list[cnt];
            for (w = pn->whead; w != NULL; w = w->next) {
                  (void)xprintf("%-*.*s %-*.*s ", maxlname, maxlname,
                      pn->name, maxrname, maxrname,
                      pn->realname ? pn->realname : "");
                  if (!w->loginat) {
                        (void)xprintf("  *     *  No logins   ");
                        goto office;
                  }
                  (void)xputc(w->info == LOGGEDIN && !w->writable ?
                            '*' : ' ');
                  if (*w->tty)
                        (void)xprintf("%-7.7s ", w->tty);
                  else
                        (void)xprintf("        ");
                  if (w->info == LOGGEDIN) {
                        stimeprint(w);
                        (void)xprintf("  ");
                  } else
                        (void)xprintf("    *  ");
                  p = ctime(&w->loginat);
                  (void)xprintf("%.6s", p + 4);
                  if (now - w->loginat >= SECSPERDAY * DAYSPERNYEAR / 2)
                        (void)xprintf("  %.4s", p + 20);
                  else
                        (void)xprintf(" %.5s", p + 11);
office:
                  if (w->host[0] != '\0') {
                        xprintf(" (%s)", w->host);
                  } else {
                  if (pn->office)
                        (void)xprintf(" %-10.10s", pn->office);
                  else if (pn->officephone)
                        (void)xprintf(" %-10.10s", " ");
                  if (pn->officephone)
                        (void)xprintf(" %-.14s",
                            prphone(pn->officephone));
                  }
                  xputc('\n');
            }
      }
}

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

      if (!(list = (PERSON **)malloc((u_int)(entries * sizeof(PERSON *))))) {
            eprintf("finger: Out of space.\n");
            exit(1);
      }
      for (lp = list, pn = phead; pn != NULL; pn = pn->next)
            *lp++ = pn;
      (void)qsort(list, entries, sizeof(PERSON *), psort);
      return(list);
}

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

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

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

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