e67975d331
o Do not run any iconv() processing in -a. The locale of root user is not what is desired by most of the users who receive their calendar mail. Just assume that users store their calendars in a format that is readable to them. This fixes regression from r344340. o fork() and setusercontext(LOGIN_SETALL) for every user. This makes LANG set inside a calendar file mostly excessive, as we will pick up user's login class LANG. o This also executes complex function cal() that parses user owned files with appropriate user privileges. Previously it was run with privileges dropped only temporary for execution of cal(), and fully dropped only before invoking sendmail (see r22473). Reviewed by: bapt (older version of patch)
259 lines
6.3 KiB
C
259 lines
6.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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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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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif
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#if 0
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#ifndef lint
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static char sccsid[] = "@(#)calendar.c 8.3 (Berkeley) 3/25/94";
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#endif
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <err.h>
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#include <errno.h>
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#include <locale.h>
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#include <login_cap.h>
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#include <langinfo.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "calendar.h"
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#define UTCOFFSET_NOTSET 100 /* Expected between -24 and +24 */
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#define LONGITUDE_NOTSET 1000 /* Expected between -360 and +360 */
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struct passwd *pw;
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int doall = 0;
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int debug = 0;
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static char *DEBUG = NULL;
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static time_t f_time = 0;
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double UTCOffset = UTCOFFSET_NOTSET;
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int EastLongitude = LONGITUDE_NOTSET;
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#ifdef WITH_ICONV
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const char *outputEncoding = NULL;
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#endif
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static void usage(void) __dead2;
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int
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main(int argc, char *argv[])
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{
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int f_dayAfter = 0; /* days after current date */
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int f_dayBefore = 0; /* days before current date */
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int Friday = 5; /* day before weekend */
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int ch;
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struct tm tp1, tp2;
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(void)setlocale(LC_ALL, "");
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while ((ch = getopt(argc, argv, "-A:aB:D:dF:f:l:t:U:W:?")) != -1)
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switch (ch) {
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case '-': /* backward contemptible */
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case 'a':
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if (getuid()) {
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errno = EPERM;
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err(1, NULL);
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}
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doall = 1;
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break;
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case 'W': /* we don't need no steenking Fridays */
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Friday = -1;
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/* FALLTHROUGH */
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case 'A': /* days after current date */
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f_dayAfter = atoi(optarg);
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if (f_dayAfter < 0)
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errx(1, "number of days must be positive");
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break;
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case 'B': /* days before current date */
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f_dayBefore = atoi(optarg);
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if (f_dayBefore < 0)
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errx(1, "number of days must be positive");
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break;
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case 'D': /* debug output of sun and moon info */
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DEBUG = optarg;
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break;
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case 'd': /* debug output of current date */
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debug = 1;
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break;
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case 'F': /* Change the time: When does weekend start? */
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Friday = atoi(optarg);
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break;
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case 'f': /* other calendar file */
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calendarFile = optarg;
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break;
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case 'l': /* Change longitudal position */
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EastLongitude = strtol(optarg, NULL, 10);
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break;
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case 't': /* other date, for tests */
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f_time = Mktime(optarg);
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break;
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case 'U': /* Change UTC offset */
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UTCOffset = strtod(optarg, NULL);
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break;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc)
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usage();
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/* use current time */
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if (f_time <= 0)
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(void)time(&f_time);
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/* if not set, determine where I could be */
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{
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if (UTCOffset == UTCOFFSET_NOTSET &&
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EastLongitude == LONGITUDE_NOTSET) {
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/* Calculate on difference between here and UTC */
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time_t t;
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struct tm tm;
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long utcoffset, hh, mm, ss;
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double uo;
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time(&t);
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localtime_r(&t, &tm);
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utcoffset = tm.tm_gmtoff;
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/* seconds -> hh:mm:ss */
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hh = utcoffset / SECSPERHOUR;
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utcoffset %= SECSPERHOUR;
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mm = utcoffset / SECSPERMINUTE;
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utcoffset %= SECSPERMINUTE;
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ss = utcoffset;
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/* hh:mm:ss -> hh.mmss */
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uo = mm + (100.0 * (ss / 60.0));
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uo /= 60.0 / 100.0;
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uo = hh + uo / 100;
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UTCOffset = uo;
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EastLongitude = UTCOffset * 15;
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} else if (UTCOffset == UTCOFFSET_NOTSET) {
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/* Base on information given */
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UTCOffset = EastLongitude / 15;
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} else if (EastLongitude == LONGITUDE_NOTSET) {
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/* Base on information given */
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EastLongitude = UTCOffset * 15;
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}
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}
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settimes(f_time, f_dayBefore, f_dayAfter, Friday, &tp1, &tp2);
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generatedates(&tp1, &tp2);
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/*
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* FROM now on, we are working in UTC.
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* This will only affect moon and sun related events anyway.
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*/
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if (setenv("TZ", "UTC", 1) != 0)
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errx(1, "setenv: %s", strerror(errno));
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tzset();
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if (debug)
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dumpdates();
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if (DEBUG != NULL) {
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dodebug(DEBUG);
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exit(0);
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}
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if (doall)
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while ((pw = getpwent()) != NULL) {
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pid_t pid;
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if (chdir(pw->pw_dir) == -1)
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continue;
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pid = fork();
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if (pid < 0)
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err(1, "fork");
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if (pid == 0) {
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login_cap_t *lc;
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lc = login_getpwclass(pw);
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if (setusercontext(lc, pw, pw->pw_uid,
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LOGIN_SETALL) != 0)
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errx(1, "setusercontext");
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cal();
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exit(0);
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}
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}
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else {
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#ifdef WITH_ICONV
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/* Save the information about the encoding used in the terminal. */
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outputEncoding = strdup(nl_langinfo(CODESET));
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if (outputEncoding == NULL)
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errx(1, "cannot allocate memory");
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#endif
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cal();
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}
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exit(0);
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}
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static void __dead2
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usage(void)
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{
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fprintf(stderr, "%s\n%s\n%s\n",
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"usage: calendar [-A days] [-a] [-B days] [-D sun|moon] [-d]",
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" [-F friday] [-f calendarfile] [-l longitude]",
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" [-t dd[.mm[.year]]] [-U utcoffset] [-W days]"
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);
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exit(1);
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}
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