1 b8a11905 2023-08-31 op /*
 2 b8a11905 2023-08-31 op  * This is free and unencumbered software released into the public domain.
 3 b8a11905 2023-08-31 op  *
 4 b8a11905 2023-08-31 op  * Anyone is free to copy, modify, publish, use, compile, sell, or
 5 b8a11905 2023-08-31 op  * distribute this software, either in source code form or as a compiled
 6 b8a11905 2023-08-31 op  * binary, for any purpose, commercial or non-commercial, and by any
 7 b8a11905 2023-08-31 op  * means.
 8 b8a11905 2023-08-31 op  *
 9 b8a11905 2023-08-31 op  * In jurisdictions that recognize copyright laws, the author or authors
10 b8a11905 2023-08-31 op  * of this software dedicate any and all copyright interest in the
11 b8a11905 2023-08-31 op  * software to the public domain. We make this dedication for the benefit
12 b8a11905 2023-08-31 op  * of the public at large and to the detriment of our heirs and
13 b8a11905 2023-08-31 op  * successors. We intend this dedication to be an overt act of
14 b8a11905 2023-08-31 op  * relinquishment in perpetuity of all present and future rights to this
15 b8a11905 2023-08-31 op  * software under copyright law.
16 b8a11905 2023-08-31 op  *
17 b8a11905 2023-08-31 op  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 b8a11905 2023-08-31 op  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 b8a11905 2023-08-31 op  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 b8a11905 2023-08-31 op  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 b8a11905 2023-08-31 op  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 b8a11905 2023-08-31 op  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 b8a11905 2023-08-31 op  * OTHER DEALINGS IN THE SOFTWARE.
24 b8a11905 2023-08-31 op  */
25 b8a11905 2023-08-31 op 
26 6be81433 2024-04-14 op #ifndef BUFIO_WITHOUT_TLS
27 6be81433 2024-04-14 op struct tls;
28 6be81433 2024-04-14 op #endif
29 6be81433 2024-04-14 op 
30 6be81433 2024-04-14 op #define BIO_CHUNK	128
31 6be81433 2024-04-14 op struct buf {
32 b8a11905 2023-08-31 op 	uint8_t		*buf;
33 b8a11905 2023-08-31 op 	size_t		 len;
34 b8a11905 2023-08-31 op 	size_t		 cap;
35 6be81433 2024-04-14 op 	size_t		 cur;
36 b8a11905 2023-08-31 op };
37 b8a11905 2023-08-31 op 
38 b8a11905 2023-08-31 op struct bufio {
39 b8a11905 2023-08-31 op 	int		 fd;
40 d48ffc66 2023-08-31 op 	int		 chunked;
41 6be81433 2024-04-14 op #ifndef BUFIO_WITHOUT_TLS
42 6be81433 2024-04-14 op 	struct tls	*ctx;
43 6be81433 2024-04-14 op #endif
44 6be81433 2024-04-14 op 	int		 wantev;
45 6be81433 2024-04-14 op 	struct buf	 wbuf;
46 6be81433 2024-04-14 op 	struct buf	 rbuf;
47 b8a11905 2023-08-31 op };
48 b8a11905 2023-08-31 op 
49 6be81433 2024-04-14 op #define	BUFIO_WANT_READ		0x1
50 6be81433 2024-04-14 op #define	BUFIO_WANT_WRITE	0x2
51 b8a11905 2023-08-31 op 
52 6be81433 2024-04-14 op int	buf_init(struct buf *);
53 6be81433 2024-04-14 op int	buf_write(struct buf *, const void *, size_t);
54 6be81433 2024-04-14 op int	buf_has_line(struct buf *, const char *);
55 6be81433 2024-04-14 op char	*buf_getdelim(struct buf *, const char *, size_t *);
56 6be81433 2024-04-14 op void	buf_drain(struct buf *, size_t);
57 6be81433 2024-04-14 op void	buf_drain_line(struct buf *, const char *);
58 6be81433 2024-04-14 op void	buf_free(struct buf *);
59 6be81433 2024-04-14 op 
60 b8a11905 2023-08-31 op int	bufio_init(struct bufio *);
61 d48ffc66 2023-08-31 op void	bufio_free(struct bufio *);
62 6be81433 2024-04-14 op int	bufio_close(struct bufio *);
63 b8a11905 2023-08-31 op int	bufio_reset(struct bufio *);
64 b8a11905 2023-08-31 op void	bufio_set_fd(struct bufio *, int);
65 d48ffc66 2023-08-31 op void	bufio_set_chunked(struct bufio *, int);
66 6be81433 2024-04-14 op int	bufio_starttls(struct bufio *, const char *, int,
67 6be81433 2024-04-14 op 	    const uint8_t *, size_t, const uint8_t *, size_t);
68 6be81433 2024-04-14 op int	bufio_ev(struct bufio *);
69 6be81433 2024-04-14 op int	bufio_handshake(struct bufio *);
70 b8a11905 2023-08-31 op ssize_t	bufio_read(struct bufio *);
71 d48ffc66 2023-08-31 op size_t	bufio_drain(struct bufio *, void *, size_t);
72 b8a11905 2023-08-31 op ssize_t	bufio_write(struct bufio *);
73 b8a11905 2023-08-31 op int	bufio_compose(struct bufio *, const void *, size_t);
74 b8a11905 2023-08-31 op int	bufio_compose_str(struct bufio *, const char *);
75 b8a11905 2023-08-31 op int	bufio_compose_fmt(struct bufio *, const char *, ...)
76 b8a11905 2023-08-31 op 	    __attribute__((__format__ (printf, 2, 3)));
77 6be81433 2024-04-14 op void	bufio_rewind_cursor(struct bufio *);
78 6be81433 2024-04-14 op 
79 6be81433 2024-04-14 op /* callbacks for pdjson */
80 6be81433 2024-04-14 op int	bufio_get_cb(void *);
81 6be81433 2024-04-14 op int	bufio_peek_cb(void *);