/*      $OpenBSD: lprint.c,v 1.14 2025/11/20 11:01:29 tb 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 <stdio.h>
#include <string.h>
#include <time.h>
#include <ctype.h>
#include <paths.h>
#include <vis.h>
#include "finger.h"
#include "extern.h"

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

void
lflag_print(void)
{
        PERSON *pn;

        for (pn = phead;;) {
                lprint(pn);
                if (!pplan) {
                        (void)show_text(pn->dir, _PATH_PROJECT, "Project:");
                        if (!show_text(pn->dir, _PATH_PLAN, "Plan:"))
                                (void)printf("No Plan.\n");
                }
                if (!(pn = pn->next))
                        break;
                putchar('\n');
        }
}

void
lprint(PERSON *pn)
{
        struct tm *delta;
        WHERE *w;
        int cpr, len, maxlen;
        struct tm *tp;
        int oddfield;
        const char *t, *tzn;

        cpr = 0;
        /*
         * long format --
         *      login name
         *      real name
         *      home directory
         *      shell
         *      office, office phone, home phone if available
         *      mail status
         */
        (void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
            pn->name, pn->realname, pn->dir);
        (void)printf("\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) {
                (void)snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
                    OFFICE_TAG, pn->office, prphone(pn->officephone));
                oddfield = demi_print(tbuf, oddfield);
        } else {
                if (pn->office) {
                        (void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
                            OFFICE_TAG, pn->office);
                        oddfield = demi_print(tbuf, oddfield);
                }
                if (pn->officephone) {
                        (void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
                            OFFICE_PHONE_TAG, prphone(pn->officephone));
                        oddfield = demi_print(tbuf, oddfield);
                }
        }
        if (pn->homephone) {
                (void)snprintf(tbuf, sizeof(tbuf), "%s: %s",
                    "Home Phone", prphone(pn->homephone));
                oddfield = demi_print(tbuf, oddfield);
        }
        if (oddfield)
                putchar('\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);
                        tzn = tp->tm_zone;
                        cpr = printf("On since %.16s (%s) on %s",
                            t, tzn, w->tty);
                        /*
                         * 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) {
                                cpr += printf("%-*s idle ",
                                    (int)(maxlen - strlen(w->tty) + 1), ",");
                                if (delta->tm_yday > 0) {
                                        cpr += printf("%d day%s ",
                                           delta->tm_yday,
                                           delta->tm_yday == 1 ? "" : "s");
                                }
                                cpr += printf("%d:%02d",
                                    delta->tm_hour, delta->tm_min);
                                if (*w->host) {
                                        putchar(',');
                                        ++cpr;
                                }
                        }
                        if (!w->writable)
                                cpr += printf(" (messages off)");
                        break;
                case LASTLOG:
                        if (w->loginat == 0) {
                                (void)printf("Never logged in.");
                                break;
                        }
                        tp = localtime(&w->loginat);
                        t = asctime(tp);
                        tzn = tp->tm_zone;
                        if (now - w->loginat > SIXMONTHS)
                                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);
                        break;
                }
                if (*w->host) {
                        if (LINE_LEN < (cpr + 6 + strlen(w->host)))
                                (void)printf("\n   ");
                        (void)printf(" from %s", w->host);
                }
                putchar('\n');
        }
        if (pn->mailrecv == -1)
                printf("No Mail.\n");
        else if (pn->mailrecv > pn->mailread) {
                tp = localtime(&pn->mailrecv);
                t = asctime(tp);
                tzn = tp->tm_zone;
                printf("New mail received %.16s %.4s (%s)\n", t, t + 20, tzn);
                tp = localtime(&pn->mailread);
                t = asctime(tp);
                tzn = tp->tm_zone;
                printf("     Unread since %.16s %.4s (%s)\n", t, t + 20, tzn);
        } else {
                tp = localtime(&pn->mailread);
                t = asctime(tp);
                tzn = tp->tm_zone;
                printf("Mail last read %.16s %.4s (%s)\n", t, t + 20, tzn);
        }
}

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)) {
                                putchar('\t');
                                lenlast += TAB_LEN;
                        }
                        (void)printf("\t%s\n", str);    /* force one tab */
                } else {
                        (void)printf("\n%s", str);      /* go to next line */
                        oddfield = !oddfield;   /* this'll be undone below */
                }
        } else
                (void)printf("%s", str);
        oddfield = !oddfield;                   /* toggle odd/even marker */
        lenlast = lenthis;
        return (oddfield);
}

int
show_text(char *directory, char *file_name, char *header)
{
        int ch, lastc;
        FILE *fp;

        lastc = 0;
        (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
        if ((fp = fopen(tbuf, "r")) == NULL)
                return (0);
        (void)printf("%s\n", header);
        while ((ch = getc(fp)) != EOF)
                vputc(lastc = ch);
        if (lastc != '\n')
                (void)putchar('\n');
        (void)fclose(fp);
        return (1);
}

void
vputc(int ch)
{
        char visout[5], *s2;

        ch = toascii(ch);
        vis(visout, ch, VIS_SAFE|VIS_NOSLASH, 0);
        for (s2 = visout; *s2; s2++)
                (void)putchar(*s2);
}