2 bff58270 2022-09-19 op * Copyright (c) 2022 Omar Polo <op@omarpolo.com>
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.
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.
17 bff58270 2022-09-19 op #include <ctype.h>
18 bff58270 2022-09-19 op #include <stdio.h>
19 bff58270 2022-09-19 op #include <stdlib.h>
21 bff58270 2022-09-19 op #include "tmpl.h"
24 bff58270 2022-09-19 op tp_urlescape(struct template *tp, const char *str)
29 bff58270 2022-09-19 op for (; *str; ++str) {
30 bff58270 2022-09-19 op if (iscntrl((unsigned char)*str) ||
31 bff58270 2022-09-19 op isspace((unsigned char)*str) ||
32 bff58270 2022-09-19 op *str == '\'' || *str == '"' || *str == '\\') {
33 bff58270 2022-09-19 op r = snprintf(tmp, sizeof(tmp), "%%%2X", *str);
34 bff58270 2022-09-19 op if (r < 0 || (size_t)r >= sizeof(tmp)) {
35 bff58270 2022-09-19 op tp->tp_ret = -1;
38 bff58270 2022-09-19 op if (tp->tp_puts(tp, tmp) == -1)
41 bff58270 2022-09-19 op if (tp->tp_putc(tp, *str) == -1)
50 bff58270 2022-09-19 op tp_htmlescape(struct template *tp, const char *str)
54 bff58270 2022-09-19 op for (; *str; ++str) {
55 bff58270 2022-09-19 op switch (*str) {
57 bff58270 2022-09-19 op r = tp->tp_puts(tp, "<");
60 bff58270 2022-09-19 op r = tp->tp_puts(tp, ">");
63 bff58270 2022-09-19 op r = tp->tp_puts(tp, "&");
66 bff58270 2022-09-19 op r = tp->tp_puts(tp, """);
69 bff58270 2022-09-19 op r = tp->tp_puts(tp, "'");
72 bff58270 2022-09-19 op r = tp->tp_putc(tp, *str);
76 bff58270 2022-09-19 op if (r == -1) {
77 bff58270 2022-09-19 op tp->tp_ret = -1;
85 bff58270 2022-09-19 op struct template *
86 bff58270 2022-09-19 op template(void *arg, tmpl_puts putsfn, tmpl_putc putcfn)
88 bff58270 2022-09-19 op struct template *tp;
90 bff58270 2022-09-19 op if ((tp = calloc(1, sizeof(*tp))) == NULL)
91 bff58270 2022-09-19 op return (NULL);
93 bff58270 2022-09-19 op tp->tp_arg = arg;
94 bff58270 2022-09-19 op tp->tp_escape = tp_htmlescape;
95 bff58270 2022-09-19 op tp->tp_puts = putsfn;
96 bff58270 2022-09-19 op tp->tp_putc = putcfn;
102 bff58270 2022-09-19 op template_reset(struct template *tp)
104 bff58270 2022-09-19 op tp->tp_ret = 0;