| 1 | /*-
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| 2 | * Copyright (c) 2000 Poul-Henning Kamp and Dag-Erling Coïdan Smørgrav
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer
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| 10 | * in this position and unchanged.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * 3. The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | *
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| 28 | * $FreeBSD: src/sys/sys/sbuf.h,v 1.14.18.1.2.1 2009/04/15 03:14:26 kensmith Exp $
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| 29 | */
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| 30 |
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| 31 | #ifndef _SYS_SBUF_H_
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| 32 | #define _SYS_SBUF_H_
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| 33 |
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| 34 | #ifndef VBOX
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| 35 | #include <sys/_types.h>
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| 36 | #else
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| 37 | # include <iprt/types.h>
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| 38 | #endif
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| 39 |
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| 40 | /*
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| 41 | * Structure definition
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| 42 | */
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| 43 | struct sbuf {
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| 44 | char *s_buf; /* storage buffer */
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| 45 | void *s_unused; /* binary compatibility. */
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| 46 | int s_size; /* size of storage buffer */
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| 47 | int s_len; /* current length of string */
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| 48 | #define SBUF_FIXEDLEN 0x00000000 /* fixed length buffer (default) */
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| 49 | #define SBUF_AUTOEXTEND 0x00000001 /* automatically extend buffer */
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| 50 | #define SBUF_USRFLAGMSK 0x0000ffff /* mask of flags the user may specify */
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| 51 | #define SBUF_DYNAMIC 0x00010000 /* s_buf must be freed */
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| 52 | #define SBUF_FINISHED 0x00020000 /* set by sbuf_finish() */
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| 53 | #define SBUF_OVERFLOWED 0x00040000 /* sbuf overflowed */
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| 54 | #define SBUF_DYNSTRUCT 0x00080000 /* sbuf must be freed */
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| 55 | int s_flags; /* flags */
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| 56 | };
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| 57 |
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| 58 | __BEGIN_DECLS
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| 59 | /*
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| 60 | * API functions
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| 61 | */
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| 62 | struct sbuf *sbuf_new(struct sbuf *, char *, int, int);
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| 63 | #define sbuf_new_auto() \
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| 64 | sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND)
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| 65 | void sbuf_clear(struct sbuf *);
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| 66 | int sbuf_setpos(struct sbuf *, int);
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| 67 | int sbuf_bcat(struct sbuf *, const void *, size_t);
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| 68 | int sbuf_bcpy(struct sbuf *, const void *, size_t);
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| 69 | int sbuf_cat(struct sbuf *, const char *);
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| 70 | int sbuf_cpy(struct sbuf *, const char *);
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| 71 | #ifndef VBOX
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| 72 | int sbuf_printf(struct sbuf *, const char *, ...) __printflike(2, 3);
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| 73 | int sbuf_vprintf(struct sbuf *, const char *, __va_list) __printflike(2, 0);
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| 74 | #else
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| 75 | int sbuf_printf(struct sbuf *, const char *, ...);
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| 76 | int sbuf_vprintf(struct sbuf *, const char *, va_list);
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| 77 | #endif
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| 78 | int sbuf_putc(struct sbuf *, int);
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| 79 | int sbuf_trim(struct sbuf *);
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| 80 | int sbuf_overflowed(struct sbuf *);
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| 81 | void sbuf_finish(struct sbuf *);
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| 82 | char *sbuf_data(struct sbuf *);
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| 83 | int sbuf_len(struct sbuf *);
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| 84 | int sbuf_done(struct sbuf *);
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| 85 | void sbuf_delete(struct sbuf *);
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| 86 |
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| 87 | #ifdef _KERNEL
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| 88 | struct uio;
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| 89 | struct sbuf *sbuf_uionew(struct sbuf *, struct uio *, int *);
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| 90 | int sbuf_bcopyin(struct sbuf *, const void *, size_t);
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| 91 | int sbuf_copyin(struct sbuf *, const void *, size_t);
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| 92 | #endif
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| 93 | __END_DECLS
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| 94 |
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| 95 | #endif
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