usr/src/usr.bin/finger/lprint.c

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static char sccsid[] = "@(#)lprint.c    5.3 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <tzfile.h>
#include <stdio.h>
#include "finger.h"
#include "pathnames.h"

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

lflag_print()
{
        extern int pplan;
        register 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');
        }
}

lprint(pn)
        register PERSON *pn;
{
        extern time_t now;
        register struct tm *delta;
        register WHERE *w;
        register int cpr, len, maxlen;
        int oddfield;
        time_t time();
        char *t, *ctime();

        /*
         * long format --
         *      login name
         *      real name
         *      home directory
         *      shell
         *      office, office phone, home phone if available
         */
        (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)sprintf(tbuf, "%s: %s, %s", OFFICE_TAG, pn->office,
                    pn->officephone);
                oddfield = demi_print(tbuf, oddfield);
        } else {
                if (pn->office) {
                        (void)sprintf(tbuf, "%s: %s", OFFICE_TAG, pn->office);
                        oddfield = demi_print(tbuf, oddfield);
                }
                if (pn->officephone) {
                        (void)sprintf(tbuf, "%s: %s", OFFICE_PHONE_TAG,
                            pn->officephone);
                        oddfield = demi_print(tbuf, oddfield);
                }
        }
        if (pn->homephone) {
                (void)sprintf(tbuf, "%s: %s", "Home Phone", 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; 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:
                        cpr = printf("On since %16.16s on %s",
                            ctime(&w->loginat), 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 ",
                                    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;
                        }
                        t = ctime(&w->loginat);
                        if (now - w->loginat > SECSPERDAY * DAYSPERNYEAR / 2)
                                cpr = printf("Last login %10.10s, %4.4s on %s",
                                    t, t + 20, w->tty);
                        else
                                cpr = printf("Last login %16.16s on %s",
                                        t, 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');
        }
        /*
         * long format con't:
         *      mail status
         */
        chkmail(pn);
}

demi_print(str, oddfield)
        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);
}

show_text(directory, file_name, header)
        char *directory, *file_name, *header;
{
        register int fd, n;

        (void)sprintf(tbuf, "%s/%s", directory, file_name);
        if ((fd = open(tbuf, O_RDONLY, 0)) < 0)
                return(0);
        (void)printf("%s\n", header);
        (void)fflush(stdout);
        while ((n = read(fd, tbuf, sizeof(tbuf))) > 0)
                if (write(1, tbuf, n) != n)
                        break;
        (void)close(fd);
        return(1);
}

chkmail(pn)
        PERSON *pn;
{
        register char *date;
        struct stat sb;

        /*
         * build path of user's mail box and get stats; if missing
         * or empty, no mail.
         */
        (void)sprintf(tbuf, "%s/%s", _PATH_MAILDIR, pn->name);
        if (stat(tbuf, &sb) < 0 || !sb.st_size) {
                (void)printf("No unread mail.\n");
                return;
        }

        /*
         * if access time matches the modification time then we know
         * that new mail was received but we haven't a clue as to when
         * it was last read.
         */
        date = ctime(&sb.st_ctime);
        if (sb.st_atime == sb.st_ctime)
                (void)printf("New mail received %16.16s.\n", date);
        else if (sb.st_atime > sb.st_ctime) {
                date = ctime(&sb.st_atime);
                (void)printf("No new mail, last read %16.16s.\n", date);
        } else {
                (void)printf("Mail received %16.16s; ", date);
                date = ctime(&sb.st_atime);
                (void)printf("last read %16.16s.\n", date);
        }
}