File: sbuf.h

package info (click to toggle)
freebsd-libs 10.3~svn296373-10
  • links: PTS, VCS
  • area: main
  • in suites: buster, sid
  • size: 6,564 kB
  • ctags: 9,832
  • sloc: ansic: 107,913; makefile: 1,101; sh: 72
file content (108 lines) | stat: -rw-r--r-- 4,129 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
/*-
 * Copyright (c) 2000-2008 Poul-Henning Kamp
 * Copyright (c) 2000-2008 Dag-Erling Coïdan Smørgrav
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer
 *    in this position and unchanged.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      $FreeBSD$
 */

#ifndef _SYS_SBUF_H_
#define	_SYS_SBUF_H_

#include <sys/types.h>
#include <stdarg.h>

struct sbuf;
typedef int (sbuf_drain_func)(void *, const char *, int);

/*
 * Structure definition
 */
struct sbuf {
	char		*s_buf;		/* storage buffer */
	sbuf_drain_func	*s_drain_func;	/* drain function */
	void		*s_drain_arg;	/* user-supplied drain argument */
	int		 s_error;	/* current error code */
	ssize_t		 s_size;	/* size of storage buffer */
	ssize_t		 s_len;		/* current length of string */
#define	SBUF_FIXEDLEN	0x00000000	/* fixed length buffer (default) */
#define	SBUF_AUTOEXTEND	0x00000001	/* automatically extend buffer */
#define	SBUF_USRFLAGMSK	0x0000ffff	/* mask of flags the user may specify */
#define	SBUF_DYNAMIC	0x00010000	/* s_buf must be freed */
#define	SBUF_FINISHED	0x00020000	/* set by sbuf_finish() */
#define	SBUF_DYNSTRUCT	0x00080000	/* sbuf must be freed */
#define	SBUF_INSECTION	0x00100000	/* set by sbuf_start_section() */
	int		 s_flags;	/* flags */
	ssize_t		 s_sect_len;	/* current length of section */
};

#ifndef HD_COLUMN_MASK
#define	HD_COLUMN_MASK	0xff
#define	HD_DELIM_MASK	0xff00
#define	HD_OMIT_COUNT	(1 << 16)
#define	HD_OMIT_HEX	(1 << 17)
#define	HD_OMIT_CHARS	(1 << 18)
#endif /* HD_COLUMN_MASK */

__BEGIN_DECLS
/*
 * API functions
 */
struct sbuf	*sbuf_new(struct sbuf *, char *, int, int);
#define		 sbuf_new_auto()				\
	sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND)
void		 sbuf_clear(struct sbuf *);
int		 sbuf_setpos(struct sbuf *, ssize_t);
int		 sbuf_bcat(struct sbuf *, const void *, size_t);
int		 sbuf_bcpy(struct sbuf *, const void *, size_t);
int		 sbuf_cat(struct sbuf *, const char *);
int		 sbuf_cpy(struct sbuf *, const char *);
int		 sbuf_printf(struct sbuf *, const char *, ...)
	__attribute((format(printf, (2), (3))));
int		 sbuf_vprintf(struct sbuf *, const char *, va_list)
	__attribute((format(printf, (2), (0))));
int		 sbuf_putc(struct sbuf *, int);
void		 sbuf_set_drain(struct sbuf *, sbuf_drain_func *, void *);
int		 sbuf_trim(struct sbuf *);
int		 sbuf_error(const struct sbuf *);
int		 sbuf_finish(struct sbuf *);
char		*sbuf_data(struct sbuf *);
ssize_t		 sbuf_len(struct sbuf *);
int		 sbuf_done(const struct sbuf *);
void		 sbuf_delete(struct sbuf *);
void		 sbuf_start_section(struct sbuf *, ssize_t *);
ssize_t		 sbuf_end_section(struct sbuf *, ssize_t, size_t, int);
void		 sbuf_hexdump(struct sbuf *, const void *, int, const char *,
		     int);

#ifdef _KERNEL
struct uio;
struct sbuf	*sbuf_uionew(struct sbuf *, struct uio *, int *);
int		 sbuf_bcopyin(struct sbuf *, const void *, size_t);
int		 sbuf_copyin(struct sbuf *, const void *, size_t);
#endif
__END_DECLS

#endif