8a16b7a18f
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
505 lines
11 KiB
C
505 lines
11 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 1989, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char copyright[] =
|
|
"@(#) Copyright (c) 1989, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif
|
|
|
|
#if 0
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)calendar.c 8.3 (Berkeley) 3/25/94";
|
|
#endif
|
|
#endif
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/wait.h>
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <langinfo.h>
|
|
#include <locale.h>
|
|
#include <pwd.h>
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stringlist.h>
|
|
#include <unistd.h>
|
|
|
|
#include "pathnames.h"
|
|
#include "calendar.h"
|
|
|
|
enum {
|
|
T_OK = 0,
|
|
T_ERR,
|
|
T_PROCESS,
|
|
};
|
|
|
|
const char *calendarFile = "calendar"; /* default calendar file */
|
|
static const char *calendarHomes[] = {".calendar", _PATH_INCLUDE}; /* HOME */
|
|
static const char *calendarNoMail = "nomail";/* don't sent mail if file exist */
|
|
|
|
static char path[MAXPATHLEN];
|
|
|
|
struct fixs neaster, npaskha, ncny, nfullmoon, nnewmoon;
|
|
struct fixs nmarequinox, nsepequinox, njunsolstice, ndecsolstice;
|
|
|
|
static int cal_parse(FILE *in, FILE *out);
|
|
|
|
static StringList *definitions = NULL;
|
|
static struct event *events[MAXCOUNT];
|
|
static char *extradata[MAXCOUNT];
|
|
|
|
static void
|
|
trimlr(char **buf)
|
|
{
|
|
char *walk = *buf;
|
|
char *last;
|
|
|
|
while (isspace(*walk))
|
|
walk++;
|
|
if (*walk != '\0') {
|
|
last = walk + strlen(walk) - 1;
|
|
while (last > walk && isspace(*last))
|
|
last--;
|
|
*(last+1) = 0;
|
|
}
|
|
|
|
*buf = walk;
|
|
}
|
|
|
|
static FILE *
|
|
cal_fopen(const char *file)
|
|
{
|
|
FILE *fp;
|
|
char *home = getenv("HOME");
|
|
unsigned int i;
|
|
|
|
if (home == NULL || *home == '\0') {
|
|
warnx("Cannot get home directory");
|
|
return (NULL);
|
|
}
|
|
|
|
if (chdir(home) != 0) {
|
|
warnx("Cannot enter home directory");
|
|
return (NULL);
|
|
}
|
|
|
|
for (i = 0; i < nitems(calendarHomes); i++) {
|
|
if (chdir(calendarHomes[i]) != 0)
|
|
continue;
|
|
|
|
if ((fp = fopen(file, "r")) != NULL)
|
|
return (fp);
|
|
}
|
|
|
|
warnx("can't open calendar file \"%s\"", file);
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
token(char *line, FILE *out, bool *skip)
|
|
{
|
|
char *walk, c, a;
|
|
|
|
if (strncmp(line, "endif", 5) == 0) {
|
|
*skip = false;
|
|
return (T_OK);
|
|
}
|
|
|
|
if (*skip)
|
|
return (T_OK);
|
|
|
|
if (strncmp(line, "include", 7) == 0) {
|
|
walk = line + 7;
|
|
|
|
trimlr(&walk);
|
|
|
|
if (*walk == '\0') {
|
|
warnx("Expecting arguments after #include");
|
|
return (T_ERR);
|
|
}
|
|
|
|
if (*walk != '<' && *walk != '\"') {
|
|
warnx("Excecting '<' or '\"' after #include");
|
|
return (T_ERR);
|
|
}
|
|
|
|
a = *walk;
|
|
walk++;
|
|
c = walk[strlen(walk) - 1];
|
|
|
|
switch(c) {
|
|
case '>':
|
|
if (a != '<') {
|
|
warnx("Unterminated include expecting '\"'");
|
|
return (T_ERR);
|
|
}
|
|
break;
|
|
case '\"':
|
|
if (a != '\"') {
|
|
warnx("Unterminated include expecting '>'");
|
|
return (T_ERR);
|
|
}
|
|
break;
|
|
default:
|
|
warnx("Unterminated include expecting '%c'",
|
|
a == '<' ? '>' : '\"' );
|
|
return (T_ERR);
|
|
}
|
|
walk[strlen(walk) - 1] = '\0';
|
|
|
|
if (cal_parse(cal_fopen(walk), out))
|
|
return (T_ERR);
|
|
|
|
return (T_OK);
|
|
}
|
|
|
|
if (strncmp(line, "define", 6) == 0) {
|
|
if (definitions == NULL)
|
|
definitions = sl_init();
|
|
walk = line + 6;
|
|
trimlr(&walk);
|
|
|
|
if (*walk == '\0') {
|
|
warnx("Expecting arguments after #define");
|
|
return (T_ERR);
|
|
}
|
|
|
|
sl_add(definitions, strdup(walk));
|
|
return (T_OK);
|
|
}
|
|
|
|
if (strncmp(line, "ifndef", 6) == 0) {
|
|
walk = line + 6;
|
|
trimlr(&walk);
|
|
|
|
if (*walk == '\0') {
|
|
warnx("Expecting arguments after #ifndef");
|
|
return (T_ERR);
|
|
}
|
|
|
|
if (definitions != NULL && sl_find(definitions, walk) != NULL)
|
|
*skip = true;
|
|
|
|
return (T_OK);
|
|
}
|
|
|
|
return (T_PROCESS);
|
|
|
|
}
|
|
|
|
#define REPLACE(string, slen, struct_) \
|
|
if (strncasecmp(buf, (string), (slen)) == 0 && buf[(slen)]) { \
|
|
if (struct_.name != NULL) \
|
|
free(struct_.name); \
|
|
if ((struct_.name = strdup(buf + (slen))) == NULL) \
|
|
errx(1, "cannot allocate memory"); \
|
|
struct_.len = strlen(buf + (slen)); \
|
|
continue; \
|
|
}
|
|
static int
|
|
cal_parse(FILE *in, FILE *out)
|
|
{
|
|
char *line = NULL;
|
|
char *buf;
|
|
size_t linecap = 0;
|
|
ssize_t linelen;
|
|
ssize_t l;
|
|
static int d_first = -1;
|
|
static int count = 0;
|
|
int i;
|
|
int month[MAXCOUNT];
|
|
int day[MAXCOUNT];
|
|
int year[MAXCOUNT];
|
|
bool skip = false;
|
|
char dbuf[80];
|
|
char *pp, p;
|
|
struct tm tm;
|
|
int flags;
|
|
|
|
/* Unused */
|
|
tm.tm_sec = 0;
|
|
tm.tm_min = 0;
|
|
tm.tm_hour = 0;
|
|
tm.tm_wday = 0;
|
|
|
|
if (in == NULL)
|
|
return (1);
|
|
|
|
while ((linelen = getline(&line, &linecap, in)) > 0) {
|
|
if (*line == '#') {
|
|
switch (token(line+1, out, &skip)) {
|
|
case T_ERR:
|
|
free(line);
|
|
return (1);
|
|
case T_OK:
|
|
continue;
|
|
case T_PROCESS:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (skip)
|
|
continue;
|
|
|
|
buf = line;
|
|
for (l = linelen;
|
|
l > 0 && isspace((unsigned char)buf[l - 1]);
|
|
l--)
|
|
;
|
|
buf[l] = '\0';
|
|
if (buf[0] == '\0')
|
|
continue;
|
|
|
|
/* Parse special definitions: LANG, Easter, Paskha etc */
|
|
if (strncmp(buf, "LANG=", 5) == 0) {
|
|
(void)setlocale(LC_ALL, buf + 5);
|
|
d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
|
|
setnnames();
|
|
continue;
|
|
}
|
|
REPLACE("Easter=", 7, neaster);
|
|
REPLACE("Paskha=", 7, npaskha);
|
|
REPLACE("ChineseNewYear=", 15, ncny);
|
|
REPLACE("NewMoon=", 8, nnewmoon);
|
|
REPLACE("FullMoon=", 9, nfullmoon);
|
|
REPLACE("MarEquinox=", 11, nmarequinox);
|
|
REPLACE("SepEquinox=", 11, nsepequinox);
|
|
REPLACE("JunSolstice=", 12, njunsolstice);
|
|
REPLACE("DecSolstice=", 12, ndecsolstice);
|
|
if (strncmp(buf, "SEQUENCE=", 9) == 0) {
|
|
setnsequences(buf + 9);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* If the line starts with a tab, the data has to be
|
|
* added to the previous line
|
|
*/
|
|
if (buf[0] == '\t') {
|
|
for (i = 0; i < count; i++)
|
|
event_continue(events[i], buf);
|
|
continue;
|
|
}
|
|
|
|
/* Get rid of leading spaces (non-standard) */
|
|
while (isspace((unsigned char)buf[0]))
|
|
memcpy(buf, buf + 1, strlen(buf));
|
|
|
|
/* No tab in the line, then not a valid line */
|
|
if ((pp = strchr(buf, '\t')) == NULL)
|
|
continue;
|
|
|
|
/* Trim spaces in front of the tab */
|
|
while (isspace((unsigned char)pp[-1]))
|
|
pp--;
|
|
|
|
p = *pp;
|
|
*pp = '\0';
|
|
if ((count = parsedaymonth(buf, year, month, day, &flags,
|
|
extradata)) == 0)
|
|
continue;
|
|
*pp = p;
|
|
if (count < 0) {
|
|
/* Show error status based on return value */
|
|
if (debug)
|
|
fprintf(stderr, "Ignored: %s\n", buf);
|
|
if (count == -1)
|
|
continue;
|
|
count = -count + 1;
|
|
}
|
|
|
|
/* Find the last tab */
|
|
while (pp[1] == '\t')
|
|
pp++;
|
|
|
|
if (d_first < 0)
|
|
d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
|
|
|
|
for (i = 0; i < count; i++) {
|
|
tm.tm_mon = month[i] - 1;
|
|
tm.tm_mday = day[i];
|
|
tm.tm_year = year[i] - 1900;
|
|
(void)strftime(dbuf, sizeof(dbuf),
|
|
d_first ? "%e %b" : "%b %e", &tm);
|
|
if (debug)
|
|
fprintf(stderr, "got %s\n", pp);
|
|
events[i] = event_add(year[i], month[i], day[i], dbuf,
|
|
((flags &= F_VARIABLE) != 0) ? 1 : 0, pp,
|
|
extradata[i]);
|
|
}
|
|
}
|
|
|
|
free(line);
|
|
fclose(in);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
cal(void)
|
|
{
|
|
FILE *fpin;
|
|
FILE *fpout;
|
|
int i;
|
|
|
|
for (i = 0; i < MAXCOUNT; i++)
|
|
extradata[i] = (char *)calloc(1, 20);
|
|
|
|
|
|
if ((fpin = opencalin()) == NULL)
|
|
return;
|
|
|
|
if ((fpout = opencalout()) == NULL) {
|
|
fclose(fpin);
|
|
return;
|
|
}
|
|
|
|
if (cal_parse(fpin, fpout))
|
|
return;
|
|
|
|
event_print_all(fpout);
|
|
closecal(fpout);
|
|
}
|
|
|
|
FILE *
|
|
opencalin(void)
|
|
{
|
|
struct stat sbuf;
|
|
FILE *fpin;
|
|
|
|
/* open up calendar file */
|
|
if ((fpin = fopen(calendarFile, "r")) == NULL) {
|
|
if (doall) {
|
|
if (chdir(calendarHomes[0]) != 0)
|
|
return (NULL);
|
|
if (stat(calendarNoMail, &sbuf) == 0)
|
|
return (NULL);
|
|
if ((fpin = fopen(calendarFile, "r")) == NULL)
|
|
return (NULL);
|
|
} else {
|
|
fpin = cal_fopen(calendarFile);
|
|
}
|
|
}
|
|
return (fpin);
|
|
}
|
|
|
|
FILE *
|
|
opencalout(void)
|
|
{
|
|
int fd;
|
|
|
|
/* not reading all calendar files, just set output to stdout */
|
|
if (!doall)
|
|
return (stdout);
|
|
|
|
/* set output to a temporary file, so if no output don't send mail */
|
|
snprintf(path, sizeof(path), "%s/_calXXXXXX", _PATH_TMP);
|
|
if ((fd = mkstemp(path)) < 0)
|
|
return (NULL);
|
|
return (fdopen(fd, "w+"));
|
|
}
|
|
|
|
void
|
|
closecal(FILE *fp)
|
|
{
|
|
uid_t uid;
|
|
struct stat sbuf;
|
|
int nread, pdes[2], status;
|
|
char buf[1024];
|
|
|
|
if (!doall)
|
|
return;
|
|
|
|
rewind(fp);
|
|
if (fstat(fileno(fp), &sbuf) || !sbuf.st_size)
|
|
goto done;
|
|
if (pipe(pdes) < 0)
|
|
goto done;
|
|
switch (fork()) {
|
|
case -1: /* error */
|
|
(void)close(pdes[0]);
|
|
(void)close(pdes[1]);
|
|
goto done;
|
|
case 0:
|
|
/* child -- set stdin to pipe output */
|
|
if (pdes[0] != STDIN_FILENO) {
|
|
(void)dup2(pdes[0], STDIN_FILENO);
|
|
(void)close(pdes[0]);
|
|
}
|
|
(void)close(pdes[1]);
|
|
uid = geteuid();
|
|
if (setuid(getuid()) < 0) {
|
|
warnx("setuid failed");
|
|
_exit(1);
|
|
}
|
|
if (setgid(getegid()) < 0) {
|
|
warnx("setgid failed");
|
|
_exit(1);
|
|
}
|
|
if (setuid(uid) < 0) {
|
|
warnx("setuid failed");
|
|
_exit(1);
|
|
}
|
|
execl(_PATH_SENDMAIL, "sendmail", "-i", "-t", "-F",
|
|
"\"Reminder Service\"", (char *)NULL);
|
|
warn(_PATH_SENDMAIL);
|
|
_exit(1);
|
|
}
|
|
/* parent -- write to pipe input */
|
|
(void)close(pdes[0]);
|
|
|
|
write(pdes[1], "From: \"Reminder Service\" <", 26);
|
|
write(pdes[1], pw->pw_name, strlen(pw->pw_name));
|
|
write(pdes[1], ">\nTo: <", 7);
|
|
write(pdes[1], pw->pw_name, strlen(pw->pw_name));
|
|
write(pdes[1], ">\nSubject: ", 11);
|
|
write(pdes[1], dayname, strlen(dayname));
|
|
write(pdes[1], "'s Calendar\nPrecedence: bulk\n\n", 30);
|
|
|
|
while ((nread = read(fileno(fp), buf, sizeof(buf))) > 0)
|
|
(void)write(pdes[1], buf, nread);
|
|
(void)close(pdes[1]);
|
|
done: (void)fclose(fp);
|
|
(void)unlink(path);
|
|
while (wait(&status) >= 0);
|
|
}
|