1 5565365c 2024-03-27 op /*
 2 83fccf2d 2024-03-27 op  * bufio.h was written by Omar Polo <op@omarpolo.com>
 3 83fccf2d 2024-03-27 op  *
 4 5565365c 2024-03-27 op  * This is free and unencumbered software released into the public domain.
 5 5565365c 2024-03-27 op  *
 6 5565365c 2024-03-27 op  * Anyone is free to copy, modify, publish, use, compile, sell, or
 7 5565365c 2024-03-27 op  * distribute this software, either in source code form or as a compiled
 8 5565365c 2024-03-27 op  * binary, for any purpose, commercial or non-commercial, and by any
 9 5565365c 2024-03-27 op  * means.
10 5565365c 2024-03-27 op  *
11 5565365c 2024-03-27 op  * In jurisdictions that recognize copyright laws, the author or authors
12 5565365c 2024-03-27 op  * of this software dedicate any and all copyright interest in the
13 5565365c 2024-03-27 op  * software to the public domain. We make this dedication for the benefit
14 5565365c 2024-03-27 op  * of the public at large and to the detriment of our heirs and
15 5565365c 2024-03-27 op  * successors. We intend this dedication to be an overt act of
16 5565365c 2024-03-27 op  * relinquishment in perpetuity of all present and future rights to this
17 5565365c 2024-03-27 op  * software under copyright law.
18 5565365c 2024-03-27 op  *
19 5565365c 2024-03-27 op  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 5565365c 2024-03-27 op  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 5565365c 2024-03-27 op  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 5565365c 2024-03-27 op  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 5565365c 2024-03-27 op  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 5565365c 2024-03-27 op  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 5565365c 2024-03-27 op  * OTHER DEALINGS IN THE SOFTWARE.
26 5565365c 2024-03-27 op  */
27 5565365c 2024-03-27 op 
28 5565365c 2024-03-27 op struct tls;
29 5565365c 2024-03-27 op 
30 5565365c 2024-03-27 op #define BIO_CHUNK	128
31 5565365c 2024-03-27 op struct buf {
32 5565365c 2024-03-27 op 	uint8_t		*buf;
33 5565365c 2024-03-27 op 	size_t		 len;
34 5565365c 2024-03-27 op 	size_t		 cap;
35 5565365c 2024-03-27 op 	size_t		 cur;
36 5565365c 2024-03-27 op };
37 5565365c 2024-03-27 op 
38 5565365c 2024-03-27 op struct bufio {
39 5565365c 2024-03-27 op 	int		 fd;
40 5565365c 2024-03-27 op 	struct tls	*ctx;
41 5565365c 2024-03-27 op 	int		 wantev;
42 5565365c 2024-03-27 op 	struct buf	 wbuf;
43 5565365c 2024-03-27 op 	struct buf	 rbuf;
44 5565365c 2024-03-27 op };
45 5565365c 2024-03-27 op 
46 5565365c 2024-03-27 op #define	BUFIO_WANT_READ		0x1
47 5565365c 2024-03-27 op #define	BUFIO_WANT_WRITE	0x2
48 5565365c 2024-03-27 op 
49 5565365c 2024-03-27 op int		 buf_init(struct buf *);
50 5565365c 2024-03-27 op int		 buf_has_line(struct buf *, const char *);
51 5565365c 2024-03-27 op char		*buf_getdelim(struct buf *, const char *, size_t *);
52 5565365c 2024-03-27 op void		 buf_drain(struct buf *, size_t);
53 5565365c 2024-03-27 op void		 buf_drain_line(struct buf *, const char *);
54 5565365c 2024-03-27 op void		 buf_free(struct buf *);
55 5565365c 2024-03-27 op 
56 5565365c 2024-03-27 op int		 bufio_init(struct bufio *);
57 5565365c 2024-03-27 op void		 bufio_free(struct bufio *);
58 5565365c 2024-03-27 op int		 bufio_close(struct bufio *);
59 5565365c 2024-03-27 op int		 bufio_reset(struct bufio *);
60 5565365c 2024-03-27 op void		 bufio_set_fd(struct bufio *, int);
61 5565365c 2024-03-27 op int		 bufio_starttls(struct bufio *, const char *, int,
62 5565365c 2024-03-27 op 		    const uint8_t *, size_t, const uint8_t *, size_t);
63 5565365c 2024-03-27 op int		 bufio_ev(struct bufio *);
64 5565365c 2024-03-27 op int		 bufio_handshake(struct bufio *);
65 5565365c 2024-03-27 op ssize_t		 bufio_read(struct bufio *);
66 5565365c 2024-03-27 op size_t		 bufio_drain(struct bufio *, void *, size_t);
67 5565365c 2024-03-27 op ssize_t		 bufio_write(struct bufio *);
68 5565365c 2024-03-27 op const char	*bufio_io_err(struct bufio *);
69 5565365c 2024-03-27 op int		 bufio_compose(struct bufio *, const void *, size_t);
70 5565365c 2024-03-27 op int		 bufio_compose_str(struct bufio *, const char *);
71 5565365c 2024-03-27 op int		 bufio_compose_fmt(struct bufio *, const char *, ...)
72 5565365c 2024-03-27 op 		    __attribute__((__format__ (printf, 2, 3)));
73 5565365c 2024-03-27 op void		 bufio_rewind_cursor(struct bufio *);
74 5565365c 2024-03-27 op 
75 5565365c 2024-03-27 op /* callbacks for pdjson */
76 5565365c 2024-03-27 op int		 bufio_get_cb(void *);
77 5565365c 2024-03-27 op int		 bufio_peek_cb(void *);