390 lines
10 KiB
C
390 lines
10 KiB
C
/* $NetBSD: lprint.c,v 1.23 2013/01/18 22:10:31 christos Exp $ */
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)lprint.c 8.3 (Berkeley) 4/28/95";
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#else
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__RCSID( "$NetBSD: lprint.c,v 1.23 2013/01/18 22:10:31 christos Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include <tzfile.h>
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#include <db.h>
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#include <err.h>
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#include <pwd.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <ctype.h>
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#include <paths.h>
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#include <vis.h>
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#include "utmpentry.h"
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#include "finger.h"
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#include "extern.h"
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#define LINE_LEN 80
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#define TAB_LEN 8 /* 8 spaces between tabs */
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#define _PATH_FORWARD ".forward"
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#define _PATH_PLAN ".plan"
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#define _PATH_PROJECT ".project"
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static int demi_print(const char *, int);
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static void lprint(PERSON *);
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static int show_text(const char *, const char *, const char *);
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static void vputc(int);
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#ifdef __SVR4
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#define TIMEZONE(a) tzname[0]
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#else
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#define TIMEZONE(a) (a)->tm_zone
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#endif
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void
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lflag_print(void)
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{
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PERSON *pn;
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int sflag, r;
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PERSON *tmp;
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DBT data, key;
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if (db == NULL)
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return;
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for (sflag = R_FIRST;; sflag = R_NEXT) {
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r = (*db->seq)(db, &key, &data, sflag);
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if (r == -1)
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err(1, "db seq");
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if (r == 1)
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break;
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memmove(&tmp, data.data, sizeof tmp);
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pn = tmp;
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if (sflag != R_FIRST)
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putchar('\n');
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lprint(pn);
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if (!pplan) {
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(void)show_text(pn->dir,
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_PATH_FORWARD, "Mail forwarded to");
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(void)show_text(pn->dir, _PATH_PROJECT, "Project");
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if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
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(void)printf("No Plan.\n");
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}
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}
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}
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static size_t
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visify(char *buf, size_t blen, const char *str)
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{
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int len = strnvisx(buf, blen, str, strlen(str), VIS_WHITE|VIS_CSTYLE);
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if (len == -1) {
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buf[0] = '\0';
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return 0;
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}
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return len;
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}
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static void
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fmt_time(char *buf, size_t blen, time_t ti, time_t n)
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{
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struct tm *tp = localtime(&ti);
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if (tp != NULL) {
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char *t = asctime(tp);
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char *tzn = TIMEZONE(tp);
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if (n == (time_t)-1 ||
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n - ti > SECSPERDAY * DAYSPERNYEAR / 2)
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snprintf(buf, blen, "%.16s %.4s (%s)", t, t + 20, tzn);
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else
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snprintf(buf, blen, "%.16s (%s)", t, tzn);
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} else
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snprintf(buf, blen, "[*bad time 0x%llx*]", (long long)ti);
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}
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/*
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* idle time is tough; if have one, print a comma,
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* then spaces to pad out the device name, then the
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* idle time. Follow with a comma if a remote login.
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*/
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static int
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print_idle(time_t t, int maxlen, size_t hostlen, size_t ttylen) {
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int cpr;
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struct tm *delta = gmtime(&t);
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if (delta == NULL)
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return printf("Bad idle 0x%llx", (long long)t);
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if (delta->tm_yday == 0 && delta->tm_hour == 0 && delta->tm_min == 0)
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return 0;
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cpr = printf("%-*s idle ", (int)(maxlen - ttylen + 1), ",");
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if (delta->tm_yday > 0) {
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cpr += printf("%d day%s ", delta->tm_yday,
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delta->tm_yday == 1 ? "" : "s");
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}
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cpr += printf("%d:%02d", delta->tm_hour, delta->tm_min);
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if (hostlen) {
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putchar(',');
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++cpr;
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}
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return cpr;
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}
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static void
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lprint(PERSON *pn)
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{
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WHERE *w;
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int cpr, len, maxlen;
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int oddfield;
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char timebuf[128], ttybuf[64], hostbuf[512];
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size_t ttylen, hostlen;
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cpr = 0;
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/*
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* long format --
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* login name
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* real name
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* home directory
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* shell
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* office, office phone, home phone if available
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* mail status
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*/
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(void)printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
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pn->name, pn->realname, pn->dir);
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(void)printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
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if (gflag)
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goto no_gecos;
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/*
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* try and print office, office phone, and home phone on one line;
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* if that fails, do line filling so it looks nice.
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*/
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#define OFFICE_TAG "Office"
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#define OFFICE_PHONE_TAG "Office Phone"
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oddfield = 0;
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if (pn->office && pn->officephone &&
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strlen(pn->office) + strlen(pn->officephone) +
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sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
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(void)snprintf(timebuf, sizeof(timebuf), "%s: %s, %s",
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OFFICE_TAG, pn->office, prphone(pn->officephone));
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oddfield = demi_print(timebuf, oddfield);
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} else {
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if (pn->office) {
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(void)snprintf(timebuf, sizeof(timebuf), "%s: %s",
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OFFICE_TAG, pn->office);
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oddfield = demi_print(timebuf, oddfield);
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}
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if (pn->officephone) {
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(void)snprintf(timebuf, sizeof(timebuf), "%s: %s",
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OFFICE_PHONE_TAG, prphone(pn->officephone));
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oddfield = demi_print(timebuf, oddfield);
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}
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}
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if (pn->homephone) {
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(void)snprintf(timebuf, sizeof(timebuf), "%s: %s", "Home Phone",
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prphone(pn->homephone));
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oddfield = demi_print(timebuf, oddfield);
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}
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if (oddfield)
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putchar('\n');
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no_gecos:
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/*
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* long format con't:
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* if logged in
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* terminal
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* idle time
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* if messages allowed
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* where logged in from
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* if not logged in
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* when last logged in
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*/
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/* find out longest device name for this user for formatting */
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for (w = pn->whead, maxlen = -1; w != NULL; w = w->next) {
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visify(ttybuf, sizeof(ttybuf), w->tty);
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if ((len = strlen(ttybuf)) > maxlen)
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maxlen = len;
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}
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/* find rest of entries for user */
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for (w = pn->whead; w != NULL; w = w->next) {
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ttylen = visify(ttybuf, sizeof(ttybuf), w->tty);
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hostlen = visify(hostbuf, sizeof(hostbuf), w->host);
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switch (w->info) {
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case LOGGEDIN:
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fmt_time(timebuf, sizeof(timebuf), w->loginat, -1);
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cpr = printf("On since %s on %s", timebuf, ttybuf);
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cpr += print_idle(w->idletime, maxlen, hostlen,
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ttylen);
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if (!w->writable)
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cpr += printf(" (messages off)");
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break;
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case LASTLOG:
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if (w->loginat == 0) {
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(void)printf("Never logged in.");
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break;
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}
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fmt_time(timebuf, sizeof(timebuf), w->loginat, now);
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cpr = printf("Last login %s on %s", timebuf, ttybuf);
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break;
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}
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if (hostlen) {
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if (LINE_LEN < (cpr + 6 + hostlen))
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(void)printf("\n ");
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(void)printf(" from %s", hostbuf);
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}
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putchar('\n');
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}
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if (pn->mailrecv == -1)
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printf("No Mail.\n");
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else if (pn->mailrecv > pn->mailread) {
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fmt_time(timebuf, sizeof(timebuf), pn->mailrecv, -1);
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printf("New mail received %s\n", timebuf);
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fmt_time(timebuf, sizeof(timebuf), pn->mailread, -1);
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printf(" Unread since %s\n", timebuf);
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} else {
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fmt_time(timebuf, sizeof(timebuf), pn->mailread, -1);
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printf("Mail last read %s\n", timebuf);
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}
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}
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static int
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demi_print(const char *str, int oddfield)
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{
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static int lenlast;
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int lenthis, maxlen;
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lenthis = strlen(str);
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if (oddfield) {
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/*
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* We left off on an odd number of fields. If we haven't
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* crossed the midpoint of the screen, and we have room for
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* the next field, print it on the same line; otherwise,
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* print it on a new line.
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*
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* Note: we insist on having the right hand fields start
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* no less than 5 tabs out.
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*/
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maxlen = 5 * TAB_LEN;
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if (maxlen < lenlast)
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maxlen = lenlast;
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if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
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lenthis) <= LINE_LEN) {
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while(lenlast < (4 * TAB_LEN)) {
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putchar('\t');
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lenlast += TAB_LEN;
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}
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(void)printf("\t%s\n", str); /* force one tab */
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} else {
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(void)printf("\n%s", str); /* go to next line */
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oddfield = !oddfield; /* this'll be undone below */
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}
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} else
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(void)printf("%s", str);
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oddfield = !oddfield; /* toggle odd/even marker */
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lenlast = lenthis;
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return(oddfield);
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}
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static int
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show_text(const char *directory, const char *file_name, const char *header)
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{
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struct stat sb;
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FILE *fp;
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int ch, cnt, lastc;
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char *p;
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int fd, nr;
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lastc = 0;
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(void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
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if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
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sb.st_size == 0)
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return(0);
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/* If short enough, and no newlines, show it on a single line.*/
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if (sb.st_size <= (off_t)(LINE_LEN - strlen(header) - 5)) {
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nr = read(fd, tbuf, sizeof(tbuf));
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if (nr <= 0) {
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(void)close(fd);
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return(0);
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}
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for (p = tbuf, cnt = nr; cnt--; ++p)
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if (*p == '\n')
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break;
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if (cnt <= 1) {
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(void)printf("%s: ", header);
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for (p = tbuf, cnt = nr; cnt--; ++p)
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vputc(lastc = (unsigned char)*p);
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if (lastc != '\n')
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(void)putchar('\n');
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(void)close(fd);
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return(1);
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}
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else
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(void)lseek(fd, 0L, SEEK_SET);
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}
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if ((fp = fdopen(fd, "r")) == NULL)
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return(0);
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(void)printf("%s:\n", header);
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while ((ch = getc(fp)) != EOF)
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vputc(lastc = ch);
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if (lastc != '\n')
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(void)putchar('\n');
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(void)fclose(fp);
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return(1);
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}
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static void
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vputc(int ch)
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{
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char visout[5], *s2;
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if (eightflag || isprint(ch) || isspace(ch)) {
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(void)putchar(ch);
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return;
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}
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ch = toascii(ch);
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vis(visout, ch, VIS_SAFE|VIS_NOSLASH, 0);
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for (s2 = visout; *s2; s2++)
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(void)putchar(*s2);
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}
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