1/*- 2 * Copyright (c) 2000 Poul-Henning Kamp and Dag-Erling Co�dan Sm�rgrav 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: /repoman/r/ncvs/src/sys/sys/sbuf.h,v 1.14 2004/07/09 11:35:30 des Exp $ 29 */ 30 31#ifndef _SYS_SBUF_H_ 32#define _SYS_SBUF_H_ 33 34#include <sys/_types.h> 35#include <stdarg.h> 36 37/* 38 * Structure definition 39 */ 40struct sbuf { 41 char *s_buf; /* storage buffer */ 42 void *s_unused; /* binary compatibility. */ 43 int s_size; /* size of storage buffer */ 44 int s_len; /* current length of string */ 45#define SBUF_FIXEDLEN 0x00000000 /* fixed length buffer (default) */ 46#define SBUF_AUTOEXTEND 0x00000001 /* automatically extend buffer */ 47#define SBUF_USRFLAGMSK 0x0000ffff /* mask of flags the user may specify */ 48#define SBUF_DYNAMIC 0x00010000 /* s_buf must be freed */ 49#define SBUF_FINISHED 0x00020000 /* set by sbuf_finish() */ 50#define SBUF_OVERFLOWED 0x00040000 /* sbuf overflowed */ 51#define SBUF_DYNSTRUCT 0x00080000 /* sbuf must be freed */ 52 int s_flags; /* flags */ 53}; 54 55__BEGIN_DECLS 56/* 57 * API functions 58 */ 59struct sbuf *sbuf_new(struct sbuf *, char *, int, int); 60void sbuf_clear(struct sbuf *); 61int sbuf_setpos(struct sbuf *, int); 62int sbuf_bcat(struct sbuf *, const void *, size_t); 63int sbuf_bcpy(struct sbuf *, const void *, size_t); 64int sbuf_cat(struct sbuf *, const char *); 65int sbuf_cpy(struct sbuf *, const char *); 66int sbuf_printf(struct sbuf *, const char *, ...) __printflike(2, 3); 67int sbuf_vprintf(struct sbuf *, const char *, va_list) __printflike(2, 0); 68int sbuf_putc(struct sbuf *, int); 69int sbuf_trim(struct sbuf *); 70int sbuf_overflowed(struct sbuf *); 71void sbuf_finish(struct sbuf *); 72char *sbuf_data(struct sbuf *); 73int sbuf_len(struct sbuf *); 74int sbuf_done(struct sbuf *); 75void sbuf_delete(struct sbuf *); 76 77#ifdef KERNEL 78struct uio; 79struct sbuf *sbuf_uionew(struct sbuf *, struct uio *, int *); 80int sbuf_bcopyin(struct sbuf *, const void *, size_t); 81int sbuf_copyin(struct sbuf *, const void *, size_t); 82#endif 83__END_DECLS 84 85#endif 86