2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1992-2009 Edwin Groothuis <edwin@FreeBSD.org>.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * $FreeBSD: head/usr.bin/calendar/events.c 326276 2017-11-27 15:37:16Z pfg $
40 event_add(int year, int month, int day, char *date, int var, char *txt,
46 * Creating a new event:
47 * - Create a new event
48 * - Copy the machine readable day and month
49 * - Copy the human readable and language specific date
50 * - Copy the text of the event
52 e = (struct event *)calloc(1, sizeof(struct event));
54 errx(1, "event_add: cannot allocate memory");
58 e->date = strdup(date);
60 errx(1, "event_add: cannot allocate memory");
61 e->text = strdup(txt);
63 errx(1, "event_add: cannot allocate memory");
65 if (extra != NULL && extra[0] != '\0')
66 e->extra = strdup(extra);
67 addtodate(e, year, month, day);
72 event_continue(struct event *e, char *txt)
77 * Adding text to the event:
78 * - Save a copy of the old text (unknown length, so strdup())
79 * - Allocate enough space for old text + \n + new text + 0
80 * - Store the old text + \n + new text
81 * - Destroy the saved copy.
83 text = strdup(e->text);
85 errx(1, "event_continue: cannot allocate memory");
88 asprintf(&e->text, "%s\n%s", text, txt);
90 errx(1, "event_continue: cannot allocate memory");
95 event_print_all(FILE *fp)
99 while (walkthrough_dates(&e) != 0) {
101 fprintf(stderr, "event_print_allmonth: %d, day: %d\n",
106 * Go through all events and print the text of the matching
110 fprintf(fp, "%s%c%s%s%s%s\n", e->date,
111 e->var ? '*' : ' ', e->text,
112 e->extra != NULL ? " (" : "",
113 e->extra != NULL ? e->extra : "",
114 e->extra != NULL ? ")" : ""