1 5e11c00c 2021-03-02 op /*
 2 5e11c00c 2021-03-02 op  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
 3 5e11c00c 2021-03-02 op  *
 4 5e11c00c 2021-03-02 op  * Permission to use, copy, modify, and distribute this software for any
 5 5e11c00c 2021-03-02 op  * purpose with or without fee is hereby granted, provided that the above
 6 5e11c00c 2021-03-02 op  * copyright notice and this permission notice appear in all copies.
 7 5e11c00c 2021-03-02 op  *
 8 5e11c00c 2021-03-02 op  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 5e11c00c 2021-03-02 op  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 5e11c00c 2021-03-02 op  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 5e11c00c 2021-03-02 op  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 5e11c00c 2021-03-02 op  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 5e11c00c 2021-03-02 op  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 5e11c00c 2021-03-02 op  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 5e11c00c 2021-03-02 op  */
16 5e11c00c 2021-03-02 op 
17 5e11c00c 2021-03-02 op #include "telescope.h"
18 5e11c00c 2021-03-02 op 
19 5e11c00c 2021-03-02 op #include <fcntl.h>
20 b0003f58 2021-03-08 op #include <stdlib.h>
21 5e11c00c 2021-03-02 op 
22 5e11c00c 2021-03-02 op int
23 5e11c00c 2021-03-02 op mark_nonblock(int fd)
24 5e11c00c 2021-03-02 op {
25 5e11c00c 2021-03-02 op 	int flags;
26 5e11c00c 2021-03-02 op 
27 5e11c00c 2021-03-02 op 	if ((flags = fcntl(fd, F_GETFL)) == -1)
28 5e11c00c 2021-03-02 op                 return 0;
29 5e11c00c 2021-03-02 op 	if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1)
30 5e11c00c 2021-03-02 op                 return 0;
31 5e11c00c 2021-03-02 op 	return 1;
32 5e11c00c 2021-03-02 op }
33 5e11c00c 2021-03-02 op 
34 5e11c00c 2021-03-02 op char *
35 5e11c00c 2021-03-02 op telescope_strnchr(char *b, char d, size_t len)
36 5e11c00c 2021-03-02 op {
37 5e11c00c 2021-03-02 op 	size_t i;
38 5e11c00c 2021-03-02 op 
39 5e11c00c 2021-03-02 op 	for (i = 0; i < len; ++i) {
40 5e11c00c 2021-03-02 op 		if (b[i] == d)
41 5e11c00c 2021-03-02 op 			return &b[i];
42 5e11c00c 2021-03-02 op 	}
43 5e11c00c 2021-03-02 op 
44 5e11c00c 2021-03-02 op 	return NULL;
45 5e11c00c 2021-03-02 op }
46 ee130316 2021-03-09 op 
47 ee130316 2021-03-09 op int
48 ee130316 2021-03-09 op has_prefix(const char *str, const char *prfx)
49 ee130316 2021-03-09 op {
50 ee130316 2021-03-09 op 	size_t i;
51 ee130316 2021-03-09 op 
52 ee130316 2021-03-09 op 	for (i = 0; str[i] != '\0' && prfx[i] != '\0'; ++i)
53 ee130316 2021-03-09 op 		if (str[i] != prfx[i])
54 ee130316 2021-03-09 op 			return 0;
55 ee130316 2021-03-09 op 	return prfx[i] == '\0';
56 ee130316 2021-03-09 op }