freebsd-skq/usr.bin/calendar/events.c
2017-09-26 11:16:33 +00:00

124 lines
3.4 KiB
C

/*-
* Copyright (c) 1992-2009 Edwin Groothuis <edwin@FreeBSD.org>.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/time.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pathnames.h"
#include "calendar.h"
struct event *
event_add(int year, int month, int day, char *date, int var, char *txt,
char *extra)
{
struct event *e;
/*
* Creating a new event:
* - Create a new event
* - Copy the machine readable day and month
* - Copy the human readable and language specific date
* - Copy the text of the event
*/
e = (struct event *)calloc(1, sizeof(struct event));
if (e == NULL)
errx(1, "event_add: cannot allocate memory");
e->month = month;
e->day = day;
e->var = var;
e->date = strdup(date);
if (e->date == NULL)
errx(1, "event_add: cannot allocate memory");
e->text = strdup(txt);
if (e->text == NULL)
errx(1, "event_add: cannot allocate memory");
e->extra = NULL;
if (extra != NULL && extra[0] != '\0')
e->extra = strdup(extra);
addtodate(e, year, month, day);
return (e);
}
void
event_continue(struct event *e, char *txt)
{
char *text;
/*
* Adding text to the event:
* - Save a copy of the old text (unknown length, so strdup())
* - Allocate enough space for old text + \n + new text + 0
* - Store the old text + \n + new text
* - Destroy the saved copy.
*/
text = strdup(e->text);
if (text == NULL)
errx(1, "event_continue: cannot allocate memory");
free(e->text);
asprintf(&e->text, "%s\n%s", text, txt);
if (e->text == NULL)
errx(1, "event_continue: cannot allocate memory");
free(text);
return;
}
void
event_print_all(FILE *fp)
{
struct event *e;
while (walkthrough_dates(&e) != 0) {
#ifdef DEBUG
fprintf(stderr, "event_print_allmonth: %d, day: %d\n",
month, day);
#endif
/*
* Go through all events and print the text of the matching
* dates
*/
while (e != NULL) {
(void)fprintf(fp, "%s%c%s%s%s%s\n", e->date,
e->var ? '*' : ' ', e->text,
e->extra != NULL ? " (" : "",
e->extra != NULL ? e->extra : "",
e->extra != NULL ? ")" : ""
);
e = e->next;
}
}
}