1 bff58270 2022-09-19 op /*
 2 52afe358 2022-12-17 op  * Copyright (c) 2022 Omar Polo <op@openbsd.org>
 3 bff58270 2022-09-19 op  *
 4 bff58270 2022-09-19 op  * Permission to use, copy, modify, and distribute this software for any
 5 bff58270 2022-09-19 op  * purpose with or without fee is hereby granted, provided that the above
 6 bff58270 2022-09-19 op  * copyright notice and this permission notice appear in all copies.
 7 bff58270 2022-09-19 op  *
 8 bff58270 2022-09-19 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 bff58270 2022-09-19 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 bff58270 2022-09-19 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 bff58270 2022-09-19 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 bff58270 2022-09-19 op  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 bff58270 2022-09-19 op  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 bff58270 2022-09-19 op  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 bff58270 2022-09-19 op  */
16 bff58270 2022-09-19 op 
17 bff58270 2022-09-19 op #include <err.h>
18 bff58270 2022-09-19 op #include <stdio.h>
19 bff58270 2022-09-19 op #include <stdlib.h>
20 bff58270 2022-09-19 op 
21 bff58270 2022-09-19 op #include "tmpl.h"
22 bff58270 2022-09-19 op #include "lists.h"
23 bff58270 2022-09-19 op 
24 bff58270 2022-09-19 op int	base(struct template *, struct tailhead *);
25 bff58270 2022-09-19 op 
26 bff58270 2022-09-19 op int
27 bff58270 2022-09-19 op my_putc(struct template *tp, int c)
28 bff58270 2022-09-19 op {
29 bff58270 2022-09-19 op 	FILE	*fp = tp->tp_arg;
30 bff58270 2022-09-19 op 
31 95448b62 2022-09-29 op 	if (putc(c, fp) < 0)
32 bff58270 2022-09-19 op 		return (-1);
33 bff58270 2022-09-19 op 
34 bff58270 2022-09-19 op 	return (0);
35 bff58270 2022-09-19 op }
36 bff58270 2022-09-19 op 
37 bff58270 2022-09-19 op int
38 bff58270 2022-09-19 op my_puts(struct template *tp, const char *s)
39 bff58270 2022-09-19 op {
40 bff58270 2022-09-19 op 	FILE	*fp = tp->tp_arg;
41 bff58270 2022-09-19 op 
42 95448b62 2022-09-29 op 	if (fputs(s, fp) < 0)
43 bff58270 2022-09-19 op 		return (-1);
44 bff58270 2022-09-19 op 
45 bff58270 2022-09-19 op 	return (0);
46 bff58270 2022-09-19 op }
47 bff58270 2022-09-19 op 
48 bff58270 2022-09-19 op int
49 bff58270 2022-09-19 op main(int argc, char **argv)
50 bff58270 2022-09-19 op {
51 bff58270 2022-09-19 op 	struct template	*tp;
52 bff58270 2022-09-19 op 	struct tailhead	 head;
53 bff58270 2022-09-19 op 	struct entry	*np;
54 bff58270 2022-09-19 op 	int		 i;
55 bff58270 2022-09-19 op 
56 bff58270 2022-09-19 op 	if ((tp = template(stdout, my_puts, my_putc)) == NULL)
57 bff58270 2022-09-19 op 		err(1, "template");
58 bff58270 2022-09-19 op 
59 bff58270 2022-09-19 op 	TAILQ_INIT(&head);
60 bff58270 2022-09-19 op 	for (i = 0; i < 2; ++i) {
61 bff58270 2022-09-19 op 		if ((np = calloc(1, sizeof(*np))) == NULL)
62 bff58270 2022-09-19 op 			err(1, "calloc");
63 bff58270 2022-09-19 op 		if (asprintf(&np->text, "%d", i+1) == -1)
64 bff58270 2022-09-19 op 			err(1, "asprintf");
65 bff58270 2022-09-19 op 		TAILQ_INSERT_TAIL(&head, np, entries);
66 bff58270 2022-09-19 op 	}
67 bff58270 2022-09-19 op 
68 95448b62 2022-09-29 op 	if (base(tp, &head) == -1)
69 95448b62 2022-09-29 op 		return (1);
70 bff58270 2022-09-19 op 	puts("");
71 bff58270 2022-09-19 op 
72 bff58270 2022-09-19 op 	while ((np = TAILQ_FIRST(&head))) {
73 bff58270 2022-09-19 op 		TAILQ_REMOVE(&head, np, entries);
74 bff58270 2022-09-19 op 		free(np->text);
75 bff58270 2022-09-19 op 		free(np);
76 bff58270 2022-09-19 op 	}
77 bff58270 2022-09-19 op 
78 95448b62 2022-09-29 op 	if (base(tp, &head) == -1)
79 95448b62 2022-09-29 op 		return (1);
80 bff58270 2022-09-19 op 	puts("");
81 bff58270 2022-09-19 op 
82 bff58270 2022-09-19 op 	free(tp);
83 bff58270 2022-09-19 op 
84 bff58270 2022-09-19 op 	return (0);
85 bff58270 2022-09-19 op }