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lprint.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.
 */

/*
 * from: @(#)lprint.c   5.13 (Berkeley) 10/31/90
 */
char lprint_rcsid[] = 
  "$Id: lprint.c,v 1.11 1999/09/14 10:51:11 dholland Exp $";

#include <stdio.h>
#include <ctype.h>
#include <paths.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <time.h>
#include "finger.h"

static void lprint(PERSON *pn);
static int demi_print(char *str, int oddfield);
static int show_text(const char *directory, const char *file_name, 
                 const char *header);

#define     LINE_LEN    80
#define     TAB_LEN           8           /* 8 spaces between tabs */
#define     _PATH_FORWARD     ".forward"
#define     _PATH_PLAN  ".plan"
#define     _PATH_PROJECT     ".project"
#define _PATH_PGPKEY    ".pgpkey"

void 
lflag_print(void)
{
      register PERSON *pn = phead;
      while (1) {
            lprint(pn);
            if (!pplan) {
                  show_text(pn->dir, _PATH_PGPKEY, "PGP key:\n");
                  show_text(pn->dir, _PATH_PROJECT, "Project:\n");
                  if (!show_text(pn->dir, _PATH_PLAN, "Plan:\n")) {
                        xprintf("No Plan.\n");
                  }
            }
            if (!(pn = pn->next))
                  break;
            xputc('\n');
      }
}

static void
lprint(PERSON *pn)
{
      struct tm *delta, *tp;
      WHERE *w;
      int cpr, len, maxlen;
      int oddfield;
      char timebuf[128];

      /*
       * long format --
       *    login name
       *    real name
       *    home directory
       *    shell
       *    office, office phone, home phone if available
       */
      xprintf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
            pn->name, pn->realname ? pn->realname : "", pn->dir);
      xprintf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);

      /*
       * try and print office, office phone, and home phone on one line;
       * if that fails, do line filling so it looks nice.
       */
#define     OFFICE_TAG        "Office"
#define     OFFICE_PHONE_TAG  "Office Phone"
      oddfield = 0;
      if (pn->office && pn->officephone &&
          strlen(pn->office) + strlen(pn->officephone) +
          sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) 
      {
            snprintf(tbuf, TBUFLEN, "%s: %s, %s", OFFICE_TAG, pn->office,
                   prphone(pn->officephone));
            oddfield = demi_print(tbuf, oddfield);
      } 
      else {
            if (pn->office) {
                  snprintf(tbuf, TBUFLEN, "%s: %s", OFFICE_TAG, 
                         pn->office);
                  oddfield = demi_print(tbuf, oddfield);
            }
            if (pn->officephone) {
                  snprintf(tbuf, TBUFLEN, "%s: %s", OFFICE_PHONE_TAG,
                         prphone(pn->officephone));
                  oddfield = demi_print(tbuf, oddfield);
            }
      }
      if (pn->homephone) {
            snprintf(tbuf, TBUFLEN, "%s: %s", "Home Phone",
                   prphone(pn->homephone));
            oddfield = demi_print(tbuf, oddfield);
      }
      if (oddfield) xputc('\n');

      /*
       * long format con't: * if logged in
       *    terminal
       *    idle time
       *    if messages allowed
       *    where logged in from
       * if not logged in
       *    when last logged in
       */
      /* find out longest device name for this user for formatting */
      for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
            if ((len = strlen(w->tty)) > maxlen)
                  maxlen = len;
      /* find rest of entries for user */
      for (w = pn->whead; w != NULL; w = w->next) {
            switch (w->info) {
              case LOGGEDIN:
                  tp = localtime(&w->loginat);
                  /*
                   * t = asctime(tp);
                   * tzset();
                   * tzn = tzname[daylight];
                   * cpr = printf("On since %.16s (%s) on %s",
                   *   t, tzn, w->tty);
                   */
                  strftime(timebuf, sizeof(timebuf), 
                         "%a %b %e %R (%Z)", tp);
                  cpr = xprintf("On since %s on %s", timebuf, w->tty);
                  if (*w->host) {
                        cpr += xprintf(" from %s", w->host);
                  }
                  /*
                   * idle time is tough; if have one, print a comma,
                   * then spaces to pad out the device name, then the
                   * idle time.  Follow with a comma if a remote login.
                   */
                  delta = gmtime(&w->idletime);
                  if (delta->tm_yday || delta->tm_hour
                      || delta->tm_min || delta->tm_sec) {
                        if (*w->host)
                            xputc('\n');
                        cpr += xprintf("%-*s",
                            (int) (maxlen - strlen(w->tty) + 3), "");
                        if (delta->tm_yday > 0) {
                              cpr += xprintf("%d day%s ",
                                 delta->tm_yday,
                                 delta->tm_yday == 1 ? "" : "s");
                        }
                        if (delta->tm_hour > 0) {
                              cpr += xprintf("%d hour%s ",
                                 delta->tm_hour,
                                 delta->tm_hour == 1 ? "" : "s");
                        }
                        if ((delta->tm_min > 0) && !delta->tm_yday) {
                              cpr += xprintf("%d minute%s ",
                                 delta->tm_min,
                                 delta->tm_min == 1 ? "" : "s");
                        }
                        if ((delta->tm_sec > 0) && !delta->tm_yday
                             && !delta->tm_hour) {
                              cpr += xprintf("%d second%s ",
                                 delta->tm_sec,
                                 delta->tm_sec == 1 ? "" : "s");
                        }
                        cpr += xprintf("idle");
                  }
                  if (!w->writable) {
                        if (delta->tm_yday || delta->tm_hour
                            || delta->tm_min || delta->tm_sec)
                              cpr += xprintf("\n    ");
                        cpr += xprintf(" (messages off)");
                  }
                  break;
            case LASTLOG:
                  if (w->loginat == 0) {
                        (void)xprintf("Never logged in.");
                        break;
                  }
                  tp = localtime(&w->loginat);
                  /*
                   * t = asctime(tp);
                   * tzset();
                   * tzn = tzname[daylight];
                   * if(now - w->loginat > SECSPERDAY * DAYSPERNYEAR / 2)
                   *    cpr =
                   *        printf("Last login %.16s %.4s (%s) on %s",
                   *        t, t + 20, tzn, w->tty);
                   * else
                   *    cpr = printf("Last login %.16s (%s) on %s",
                   *        t, tzn, w->tty);
                   */
                  if (now - w->loginat < SECSPERDAY * DAYSPERNYEAR / 2) {
                        strftime(timebuf, sizeof(timebuf), 
                               "%a %b %e %R (%Z)", tp);
                  }
                  else {
                        strftime(timebuf, sizeof(timebuf), 
                               "%a %b %e %R %Y (%Z)", tp);
                  }
                  cpr = xprintf("Last login %s on %s", timebuf, w->tty);
                  if (*w->host) {
                        cpr += xprintf(" from %s", w->host);
                  }
                  break;
            }
            xputc('\n');
      }

      /* If the user forwards mail elsewhere, tell us about it */
      show_text(pn->dir, _PATH_FORWARD, "Mail forwarded to ");

      /* Print the standard mailbox information. */
            if (pn->mailrecv == -1)
                  xprintf("No mail.\n");
            else if (pn->mailrecv > pn->mailread) {
                  tp = localtime(&pn->mailrecv);
                  /*
                   * t = asctime(tp);
                   * tzset();
                   * tzn = tzname[daylight];
                   * printf("New mail received %.16s %.4s (%s)\n", t,
                   *      t + 20, tzn);
                   */
                  strftime(timebuf, sizeof(timebuf), 
                         "%a %b %e %R %Y (%Z)", tp);
                  xprintf("New mail received %s\n", timebuf);
                  tp = localtime(&pn->mailread);
                  /*
                   * t = asctime(tp);
                   * tzset();
                   * tzn = tzname[daylight];
                   * printf("     Unread since %.16s %.4s (%s)\n", t,
                   *      t + 20, tzn);
                   */
                  strftime(timebuf, sizeof(timebuf), 
                         "%a %b %e %R %Y (%Z)", tp);
                  xprintf("     Unread since %s\n", timebuf);
            } else {
                  tp = localtime(&pn->mailread);
                  /*
                   * t = asctime(tp);
                   * tzset();
                   * tzn = tzname[daylight];
                   * printf("Mail last read %.16s %.4s (%s)\n", t,
                   *      t + 20, tzn);
                   */
                  strftime(timebuf, sizeof(timebuf), 
                         "%a %b %e %R %Y (%Z)", tp);
                  xprintf("Mail last read %s\n", timebuf);
            }
}

static int
demi_print(char *str, int oddfield)
{
      static int lenlast;
      int lenthis, maxlen;

      lenthis = strlen(str);
      if (oddfield) {
            /*
             * We left off on an odd number of fields.  If we haven't
             * crossed the midpoint of the screen, and we have room for
             * the next field, print it on the same line; otherwise,
             * print it on a new line.
             *
             * Note: we insist on having the right hand fields start
             * no less than 5 tabs out.
             */
            maxlen = 5 * TAB_LEN;
            if (maxlen < lenlast)
                  maxlen = lenlast;
            if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
                lenthis) <= LINE_LEN) {
                  while(lenlast < (4 * TAB_LEN)) {
                        xputc('\t');
                        lenlast += TAB_LEN;
                  }
                  (void)xprintf("\t%s\n", str); /* force one tab */
            } else {
                  (void)xprintf("\n%s", str);   /* go to next line */
                  oddfield = !oddfield;   /* this'll be undone below */
            }
      } else
            (void)xprintf("%s", str);
      oddfield = !oddfield;               /* toggle odd/even marker */
      lenlast = lenthis;
      return(oddfield);
}

static int
show_text(const char *directory, const char *file_name, const char *header)
{
      int ch, lastc = 0, fd;
      FILE *fp;
      struct stat sbuf1, sbuf2;

      snprintf(tbuf, TBUFLEN, "%s/%s", directory, file_name);

      if (lstat(tbuf, &sbuf1) || !S_ISREG(sbuf1.st_mode)) return 0;
      fd = open(tbuf, O_RDONLY);
      if (fd<0) return 0;
      if (fstat(fd, &sbuf2)) { close(fd); return 0; }
      /* if we didn't get the same file both times, bail */
      if (sbuf1.st_dev!=sbuf2.st_dev || sbuf1.st_ino!=sbuf2.st_ino) {
            close(fd);
            return 0;
      }
      fp = fdopen(fd, "r");
      if (fp == NULL) { close(fd); return 0; }

      xprintf("%s", header);
      while ((ch = getc(fp)) != EOF) {
            xputc(ch);
            lastc = ch;
      }
      if (lastc != '\n') xputc('\n');

      fclose(fp);
      return 1;
}


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