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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* /usr/lib/calprog produces an egrep -f file
* that will select today's and tomorrow's
* calendar entries, with special weekend provisions
* used by calendar command
*/
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <time.h>
#include <sys/stat.h>
#include <locale.h>
#include <errno.h>
#define DAY (3600*24L)
extern char *getenv(), *malloc();
static char *file;
static int old_behavior;
static int linenum = 1;
static time_t t;
static char errmsg[128];
static char *errlst[] = {
/* 0 */ "error on open of \"%s\", errno = %d",
/* 1 */ "could not malloc enough memory",
/* 2 */ "error on stat of \"%s\", errno = %d",
/* 3 */ "file \"%s\" is not a regular file",
/* 4 */ "error in reading the file \"%s\"",
/* 5 */ "\"%s\" file: error on line %d",
/* 6 */ "\"%s\" file: format descriptions are missing"
};
static
char *month[] = {
"[Jj]an",
"[Ff]eb",
"[Mm]ar",
"[Aa]pr",
"[Mm]ay",
"[Jj]un",
"[Jj]ul",
"[Aa]ug",
"[Ss]ep",
"[Oo]ct",
"[Nn]ov",
"[Dd]ec"
};
static void read_tmpl(void);
static void error(const char *fmt, ...);
static void generate(char *);
static void
tprint(time_t t)
{
struct tm *tm;
tm = localtime(&t);
(void) printf
("(^|[ \t(,;])((%s[^ ]* *|0*%d/|\\*/)0*%d)([^0123456789]|$)\n",
month[tm->tm_mon], tm->tm_mon + 1, tm->tm_mday);
}
int
main(int argc, char *argv[])
{
(void) setlocale(LC_ALL, "");
(void) time(&t);
if (((file = getenv("DATEMSK")) == 0) || file[0] == '\0')
old_behavior = 1;
if (old_behavior)
tprint(t);
else
read_tmpl();
switch (localtime(&t)->tm_wday) {
case 5:
t += DAY;
if (old_behavior)
tprint(t);
else
read_tmpl();
case 6:
t += DAY;
if (old_behavior)
tprint(t);
else
read_tmpl();
default:
t += DAY;
if (old_behavior)
tprint(t);
else
read_tmpl();
}
return (0);
}
static void
read_tmpl(void)
{
char *clean_line();
FILE *fp;
char *bp, *start;
struct stat sb;
int no_empty = 0;
if ((start = (char *)malloc(512)) == NULL)
error(errlst[1]);
if ((fp = fopen(file, "r")) == NULL)
error(errlst[0], file, errno);
if (fstat(fileno(fp), &sb) < 0)
error(errlst[2], file, errno);
if ((sb.st_mode & S_IFMT) != S_IFREG)
error(errlst[3], file);
for (;;) {
bp = start;
if (!fgets(bp, 512, fp)) {
if (!feof(fp)) {
free(start);
fclose(fp);
error(errlst[4], file);
}
break;
}
if (*(bp+strlen(bp)-1) != '\n') /* terminating newline? */
{
free(start);
fclose(fp);
error(errlst[5], file, linenum);
}
bp = clean_line(bp);
if (strlen(bp)) /* anything left? */
{
no_empty++;
generate(bp);
}
linenum++;
}
free(start);
fclose(fp);
if (!no_empty)
error(errlst[6], file);
}
char *
clean_line(char *s)
{
char *ns;
*(s + strlen(s) -1) = (char)0; /* delete newline */
if (!strlen(s))
return (s);
ns = s + strlen(s) - 1; /* s->start; ns->end */
while ((ns != s) && (isspace(*ns))) {
*ns = (char)0; /* delete terminating spaces */
--ns;
}
while (*s) /* delete beginning white spaces */
if (isspace(*s))
++s;
else
break;
return (s);
}
static void
error(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
(void) vsnprintf(errmsg, sizeof (errmsg), fmt, args);
fprintf(stderr, "%s\n", errmsg);
va_end(args);
exit(1);
}
static void
generate(char *fmt)
{
char timebuf[1024];
char outbuf[2 * 1024];
char *tb, *ob;
int space = 0;
strftime(timebuf, sizeof (timebuf), fmt, localtime(&t));
tb = timebuf;
ob = outbuf;
while (*tb)
if (isspace(*tb)) {
++tb;
space++;
}
else
{
if (space) {
*ob++ = '[';
*ob++ = ' ';
*ob++ = '\t';
*ob++ = ']';
*ob++ = '*';
space = 0;
continue;
}
if (isalpha(*tb)) {
*ob++ = '[';
*ob++ = toupper(*tb);
*ob++ = tolower(*tb++);
*ob++ = ']';
continue;
}
else
*ob++ = *tb++;
if (*(tb - 1) == '0')
*ob++ = '*';
}
*ob = '\0';
printf("%s\n", outbuf);
}
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