usr.sbin/installer/libaura/buffer.h

   1 /*
   2  * Copyright (c) 2004 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Chris Pressey <cpressey@catseye.mine.nu>.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 /*
  36  * buffer.h
  37  * $Id: buffer.h,v 1.2 2005/02/06 06:57:30 cpressey Exp $
  38  */
  39
  40 #ifndef __AURA_BUFFER_H_
  41 #define __AURA_BUFFER_H_
  42
  43 #include <stdlib.h>
  44
  45 struct aura_buffer {
  46         char    *buf;
  47         size_t   len;
  48         size_t   size;
  49         size_t   pos;
  50 };
  51
  52 struct aura_buffer      *aura_buffer_new(size_t);
  53 void                     aura_buffer_free(struct aura_buffer *);
  54 char                    *aura_buffer_buf(struct aura_buffer *);
  55 size_t                   aura_buffer_len(struct aura_buffer *);
  56 size_t                   aura_buffer_size(struct aura_buffer *);
  57
  58 void                     aura_buffer_ensure_size(struct aura_buffer *, size_t);
  59 void                     aura_buffer_set(struct aura_buffer *, const char *, size_t);
  60 void                     aura_buffer_append(struct aura_buffer *, const char *, size_t);
  61
  62 void                     aura_buffer_cpy(struct aura_buffer *, const char *);
  63 void                     aura_buffer_cat(struct aura_buffer *, const char *);
  64 int                      aura_buffer_cat_file(struct aura_buffer *, const char *, ...);
  65 int                      aura_buffer_cat_pipe(struct aura_buffer *, const char *, ...);
  66
  67 int                      aura_buffer_seek(struct aura_buffer *, size_t);
  68 size_t                   aura_buffer_tell(struct aura_buffer *);
  69 int                      aura_buffer_eof(struct aura_buffer *);
  70 char                     aura_buffer_peek_char(struct aura_buffer *);
  71 char                     aura_buffer_scan_char(struct aura_buffer *);
  72 int                      aura_buffer_compare(struct aura_buffer *, const char *);
  73 int                      aura_buffer_expect(struct aura_buffer *, const char *);
  74
  75 void                     aura_buffer_push(struct aura_buffer *, const void *, size_t);
  76 int                      aura_buffer_pop(struct aura_buffer *, void *, size_t);
  77
  78 #endif /* !__AURA_BUFFER_H_ */