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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#) Copyright (c) 1989, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)calendar.c 8.3 (Berkeley) 3/25/94
35 * $FreeBSD: src/usr.bin/calendar/io.c,v 1.13.2.3 2002/08/26 00:32:46 jmallett Exp $
36 * $DragonFly: src/usr.bin/calendar/io.c,v 1.4 2004/01/06 15:29:09 eirikn Exp $
39 #include <sys/types.h>
40 #include <sys/param.h>
56 #include "pathnames.h"
60 const char *calendarFile = "calendar.all"; /* default calendar file */
61 const char *calendarHomes[] = { ".calendar", _PATH_INCLUDE }; /* HOME */
62 const char *calendarNoMail = "nomail"; /* don't sent mail if this file exist */
64 struct fixs neaster, npaskha;
66 struct iovec header[] = {
69 {" (Reminder Service)\nTo: ", 24},
73 {"'s Calendar\nPrecedence: bulk\n\n", 30},
87 static int d_first = -1;
90 if ((fp = opencal()) == NULL)
92 for (printing = 0; fgets(buf, sizeof(buf), stdin) != NULL;) {
93 if ((p = strchr(buf, '\n')) != NULL)
96 while ((ch = getchar()) != '\n' && ch != EOF);
98 l > 0 && isspace((unsigned char)buf[l - 1]);
104 if (strncmp(buf, "LANG=", 5) == 0) {
105 (void) setlocale(LC_ALL, buf + 5);
106 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
110 if (strncasecmp(buf, "Easter=", 7) == 0 && buf[7]) {
111 if (neaster.name != NULL)
113 if ((neaster.name = strdup(buf + 7)) == NULL)
114 errx(1, "cannot allocate memory");
115 neaster.len = strlen(buf + 7);
118 if (strncasecmp(buf, "Paskha=", 7) == 0 && buf[7]) {
119 if (npaskha.name != NULL)
121 if ((npaskha.name = strdup(buf + 7)) == NULL)
122 errx(1, "cannot allocate memory");
123 npaskha.len = strlen(buf + 7);
126 if (buf[0] != '\t') {
127 printing = isnow(buf, &month, &day, &var) ? 1 : 0;
128 if ((p = strchr(buf, '\t')) == NULL)
130 if (p > buf && p[-1] == '*')
137 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
138 tm.tm_sec = 0; /* unused */
139 tm.tm_min = 0; /* unused */
140 tm.tm_hour = 0; /* unused */
141 tm.tm_wday = 0; /* unused */
142 tm.tm_mon = month - 1;
144 tm.tm_year = tp->tm_year; /* unused */
145 (void)strftime(dbuf, sizeof(dbuf),
146 d_first ? "%e %b" : "%b %e",
148 (void)fprintf(fp, "%s%c%s\n", dbuf,
153 fprintf(fp, "%s\n", buf);
159 getfield(char *p, char **endp, int *flags)
164 for (; !isdigit((unsigned char)*p) && !isalpha((unsigned char)*p) && *p != '*'; ++p);
165 if (*p == '*') { /* `*' is current month */
168 return (tp->tm_mon + 1);
170 if (isdigit((unsigned char)*p)) {
171 val = strtol(p, &p, 10); /* if 0, it's failure */
172 for (; !isdigit((unsigned char)*p) && !isalpha((unsigned char)*p) && *p != '*'; ++p);
176 for (start = p; isalpha((unsigned char)*++p););
179 if (*p == '+' || *p == '-')
180 for(; isdigit((unsigned char)*++p););
186 if ((val = getmonth(start)) != 0)
190 else if ((val = getday(start)) != 0) {
193 /* variable weekday */
194 if ((var = getdayvar(start)) != 0) {
195 if (var <=5 && var >= -4)
198 printf("var: %d\n", var);
204 else if ((val = geteaster(start, tp->tm_year + 1900)) != 0)
208 else if ((val = getpaskha(start, tp->tm_year + 1900)) != 0)
216 for (*p = savech; !isdigit((unsigned char)*p) && !isalpha((unsigned char)*p) && *p != '*'; ++p);
221 char path[MAXPATHLEN];
228 int fd, found, pdes[2];
231 /* open up calendar file as stdin */
232 if (!freopen(calendarFile, "r", stdin)) {
234 if (chdir(calendarHomes[0]) != 0)
236 if (stat(calendarNoMail, &sbuf) == 0)
238 if (!freopen(calendarFile, "r", stdin))
241 chdir(getenv("HOME"));
242 for (found = i = 0; i < sizeof(calendarHomes) /
243 sizeof(calendarHomes[0]); i++)
244 if (chdir(calendarHomes[i]) == 0 &&
245 freopen(calendarFile, "r", stdin)) {
250 errx(1, "no calendar file: ``%s''", calendarFile);
257 (void)close(pdes[0]);
258 (void)close(pdes[1]);
261 /* child -- stdin already setup, set stdout to pipe input */
262 if (pdes[1] != STDOUT_FILENO) {
263 (void)dup2(pdes[1], STDOUT_FILENO);
264 (void)close(pdes[1]);
266 (void)close(pdes[0]);
268 if (setuid(getuid()) < 0) {
269 warnx("first setuid failed");
272 if (setgid(getegid()) < 0) {
273 warnx("setgid failed");
276 if (setuid(uid) < 0) {
277 warnx("setuid failed");
280 execl(_PATH_CPP, "cpp", "-P",
281 "-traditional", "-nostdinc", /* GCC specific opts */
282 "-I.", "-I", _PATH_INCLUDE, (char *)NULL);
286 /* parent -- set stdin to pipe output */
287 (void)dup2(pdes[0], STDIN_FILENO);
288 (void)close(pdes[0]);
289 (void)close(pdes[1]);
291 /* not reading all calendar files, just set output to stdout */
295 /* set output to a temporary file, so if no output don't send mail */
296 (void)snprintf(path, sizeof(path), "%s/_calXXXXXX", _PATH_TMP);
297 if ((fd = mkstemp(path)) < 0)
299 return (fdopen(fd, "w+"));
307 int nread, pdes[2], status;
314 if (fstat(fileno(fp), &sbuf) || !sbuf.st_size)
320 (void)close(pdes[0]);
321 (void)close(pdes[1]);
324 /* child -- set stdin to pipe output */
325 if (pdes[0] != STDIN_FILENO) {
326 (void)dup2(pdes[0], STDIN_FILENO);
327 (void)close(pdes[0]);
329 (void)close(pdes[1]);
331 if (setuid(getuid()) < 0) {
332 warnx("setuid failed");
335 if (setgid(getegid()) < 0) {
336 warnx("setgid failed");
339 if (setuid(uid) < 0) {
340 warnx("setuid failed");
343 execl(_PATH_SENDMAIL, "sendmail", "-i", "-t", "-F",
344 "\"Reminder Service\"", (char *)NULL);
345 warn(_PATH_SENDMAIL);
348 /* parent -- write to pipe input */
349 (void)close(pdes[0]);
351 header[1].iov_base = header[3].iov_base = pw->pw_name;
352 header[1].iov_len = header[3].iov_len = strlen(pw->pw_name);
353 writev(pdes[1], header, 7);
354 while ((nread = read(fileno(fp), buf, sizeof(buf))) > 0)
355 (void)write(pdes[1], buf, nread);
356 (void)close(pdes[1]);
357 done: (void)fclose(fp);
359 while (wait(&status) >= 0);