2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (c) 1989, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)calendar.c 8.3 (Berkeley) 3/25/94
31 * $FreeBSD: src/usr.bin/calendar/io.c,v 1.21 2007/06/09 05:54:13 grog Exp $
34 #include <sys/types.h>
51 #include "pathnames.h"
54 const char *calendarFile = "calendar.all"; /* default calendar file */
55 const char *calendarHomes[] = { ".calendar", _PATH_INCLUDE }; /* HOME */
56 const char *calendarNoMail = "nomail"; /* don't send mail if this file exist */
58 struct fixs neaster, npaskha;
60 char hdr_from[] = "From: ";
61 char hdr_to[] = " (Reminder Service)\nTo: ";
62 char hdr_subj[] = "\nSubject: ";
63 char hdr_prec[] = "'s Calendar\nPrecedence: bulk\n\n";
65 struct iovec header[] = {
75 static FILE *opencal(void);
76 static void closecal(FILE *);
88 static int d_first = -1;
90 struct event *events = NULL;
92 if ((fp = opencal()) == NULL)
94 for (printing = 0; fgets(buf, sizeof(buf), stdin) != NULL;) {
95 if ((p = strchr(buf, '\n')) != NULL)
98 while ((ch = getchar()) != '\n' && ch != EOF);
100 l > 0 && isspace((unsigned char)buf[l - 1]);
106 if (strncmp(buf, "LANG=", 5) == 0) {
107 setlocale(LC_ALL, buf + 5);
108 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
112 if (strncasecmp(buf, "Easter=", 7) == 0 && buf[7]) {
113 if (neaster.name != NULL)
115 if ((neaster.name = strdup(buf + 7)) == NULL)
116 errx(EXIT_FAILURE, "cannot allocate memory");
117 neaster.len = strlen(buf + 7);
120 if (strncasecmp(buf, "Paskha=", 7) == 0 && buf[7]) {
121 if (npaskha.name != NULL)
123 if ((npaskha.name = strdup(buf + 7)) == NULL)
124 errx(EXIT_FAILURE, "cannot allocate memory");
125 npaskha.len = strlen(buf + 7);
128 if (buf[0] != '\t') {
129 printing = isnow(buf, &month, &day, &var) ? 1 : 0;
130 if ((p = strchr(buf, '\t')) == NULL)
132 if (p > buf && p[-1] == '*')
139 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
140 tm.tm_sec = 0; /* unused */
141 tm.tm_min = 0; /* unused */
142 tm.tm_hour = 0; /* unused */
143 tm.tm_wday = 0; /* unused */
144 tm.tm_mon = month - 1;
146 tm.tm_year = tp->tm_year; /* unused */
147 strftime(dbuf, sizeof(dbuf),
148 d_first ? "%e %b" : "%b %e",
150 events = event_add(events, month, day, dbuf, var, p);
154 event_continue(events, buf);
157 event_print_all(fp, events);
162 * Functions to handle buffered calendar events.
165 event_add(struct event *events, int month, int day, char *date, int var, char *txt)
169 e = (struct event *)calloc(1, sizeof(struct event));
171 errx(EXIT_FAILURE, "event_add: cannot allocate memory");
175 e->date = strdup(date);
177 errx(EXIT_FAILURE, "event_add: cannot allocate memory");
178 e->text = strdup(txt);
180 errx(EXIT_FAILURE, "event_add: cannot allocate memory");
187 event_continue(struct event *e, char *txt)
191 text = strdup(e->text);
193 errx(EXIT_FAILURE, "event_continue: cannot allocate memory");
196 e->text = (char *)malloc(strlen(text) + strlen(txt) + 3);
198 errx(EXIT_FAILURE, "event_continue: cannot allocate memory");
199 strcpy(e->text, text);
200 strcat(e->text, "\n");
201 strcat(e->text, txt);
208 event_print_all(FILE *fp, struct event *events)
210 struct event *e, *e_next;
211 int daycount = f_dayAfter + f_dayBefore;
215 for (daycounter = 0; daycounter <= daycount; daycounter++) {
216 day = tp->tm_yday - f_dayBefore + daycounter;
217 if (day < 0) day += yrdays;
218 if (day >= yrdays) day -= yrdays;
221 while (month <= 12) {
222 if (day <= cumdays[month])
227 day -= cumdays[month];
230 fprintf(stderr,"event_print_allmonth: %d, day: %d\n",month,day);
233 for (e = events; e != NULL; e = e_next ) {
236 if (month != e->month || day != e->day)
239 fprintf(fp, "%s%c%s\n", e->date,
240 e->var ? '*' : ' ', e->text);
246 getfield(char *p, char **endp, int *flags)
251 for (; !isdigit((unsigned char)*p) && !isalpha((unsigned char)*p)
253 if (*p == '*') { /* `*' is current month */
256 return(tp->tm_mon + 1);
258 if (isdigit((unsigned char)*p)) {
259 val = strtol(p, &p, 10); /* if 0, it's failure */
260 for (; !isdigit((unsigned char)*p)
261 && !isalpha((unsigned char)*p) && *p != '*'; ++p);
265 for (start = p; isalpha((unsigned char)*++p););
268 if (*p == '+' || *p == '-')
269 for(; isdigit((unsigned char)*++p););
275 if ((val = getmonth(start)) != 0)
279 else if ((val = getday(start)) != 0) {
282 /* variable weekday */
283 if ((var = getdayvar(start)) != 0) {
284 if (var <=5 && var >= -4)
287 printf("var: %d\n", var);
293 else if ((val = geteaster(start, tp->tm_year + 1900)) != 0)
297 else if ((val = getpaskha(start, tp->tm_year + 1900)) != 0)
305 for (*p = savech; !isdigit((unsigned char)*p)
306 && !isalpha((unsigned char)*p) && *p != '*'; ++p);
311 static char path[MAXPATHLEN];
318 int fd, found, pdes[2];
321 /* open up calendar file as stdin */
322 if (!freopen(calendarFile, "r", stdin)) {
324 if (chdir(calendarHomes[0]) != 0)
326 if (stat(calendarNoMail, &sbuf) == 0)
328 if (!freopen(calendarFile, "r", stdin))
331 chdir(getenv("HOME"));
332 for (found = i = 0; i < sizeof(calendarHomes) /
333 sizeof(calendarHomes[0]); i++)
334 if (chdir(calendarHomes[i]) == 0 &&
335 freopen(calendarFile, "r", stdin)) {
340 errx(EXIT_FAILURE, "no calendar file: ``%s''", calendarFile);
351 /* child -- stdin already setup, set stdout to pipe input */
352 if (pdes[1] != STDOUT_FILENO) {
353 dup2(pdes[1], STDOUT_FILENO);
358 if (setuid(getuid()) < 0) {
359 warnx("first setuid failed");
362 if (setgid(getegid()) < 0) {
363 warnx("setgid failed");
366 if (setuid(uid) < 0) {
367 warnx("setuid failed");
370 execl(_PATH_CPP, "cpp", "-P",
371 "-traditional", "-nostdinc", /* GCC specific opts */
372 "-I.", "-I", _PATH_INCLUDE, NULL);
376 /* parent -- set stdin to pipe output */
377 dup2(pdes[0], STDIN_FILENO);
381 /* not reading all calendar files, just set output to stdout */
385 /* set output to a temporary file, so if no output don't send mail */
386 snprintf(path, sizeof(path), "%s/_calXXXXXX", _PATH_TMP);
387 if ((fd = mkstemp(path)) < 0)
389 return(fdopen(fd, "w+"));
397 int nread, pdes[2], status;
404 if (fstat(fileno(fp), &sbuf) || !sbuf.st_size)
414 /* child -- set stdin to pipe output */
415 if (pdes[0] != STDIN_FILENO) {
416 dup2(pdes[0], STDIN_FILENO);
421 if (setuid(getuid()) < 0) {
422 warnx("setuid failed");
425 if (setgid(getegid()) < 0) {
426 warnx("setgid failed");
429 if (setuid(uid) < 0) {
430 warnx("setuid failed");
433 execl(_PATH_SENDMAIL, "sendmail", "-i", "-t", "-F",
434 "\"Reminder Service\"", NULL);
435 warn(_PATH_SENDMAIL);
438 /* parent -- write to pipe input */
441 header[1].iov_base = header[3].iov_base = pw->pw_name;
442 header[1].iov_len = header[3].iov_len = strlen(pw->pw_name);
443 writev(pdes[1], header, 7);
444 while ((nread = read(fileno(fp), buf, sizeof(buf))) > 0)
445 write(pdes[1], buf, nread);
449 while (wait(&status) >= 0);