1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2005 Ivan Voras <ivoras@gmail.com> 5 * All rights reserved. 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 // $Id: binstream.h,v 1.1 2006/07/05 10:47:54 ivoras Exp $ 30 31 #ifndef _BIN_STREAM_ 32 #define _BIN_STREAM_ 33 34 #ifndef uint8_t 35 #define uint8_t unsigned char 36 #endif 37 38 typedef struct { 39 unsigned char *data; 40 int pos; 41 } bin_stream_t; 42 43 /* "Open" a binary stream for reading */ 44 void bs_open (bin_stream_t * bs, void *data); 45 46 /* "Reset" position in binary stream to zero */ 47 void bs_reset (bin_stream_t * bs); 48 49 /* Write a zero-terminated string; return next position */ 50 unsigned bs_write_str(bin_stream_t * bs, char *data); 51 52 /* Write an arbitrary buffer; return next position */ 53 unsigned bs_write_buf(bin_stream_t * bs, char *data, unsigned data_size); 54 55 /* Write a 8bit uint; return next position. */ 56 unsigned bs_write_u8(bin_stream_t * bs, uint8_t data); 57 58 /* Write a 16bit uint; return next position. */ 59 unsigned bs_write_u16(bin_stream_t * bs, uint16_t data); 60 61 /* Write a 32bit uint; return next position. */ 62 unsigned bs_write_u32(bin_stream_t * bs, uint32_t data); 63 64 /* Write a 64bit uint; return next position. */ 65 unsigned bs_write_u64(bin_stream_t * bs, uint64_t data); 66 67 /* 68 * Read a null-terminated string from stream into a buffer; buf_size is size 69 * of the buffer, including the final \0. Returns buf pointer or NULL if 70 * garbage input. 71 */ 72 char *bs_read_str(bin_stream_t * bs, char *buf, unsigned buf_size); 73 74 /* Read an arbitrary buffer. */ 75 void bs_read_buf(bin_stream_t * bs, char *buf, unsigned buf_size); 76 77 /* Read a 8bit uint * return it */ 78 uint8_t bs_read_u8(bin_stream_t * bs); 79 80 /* Read a 16bit uint * return it */ 81 uint16_t bs_read_u16(bin_stream_t * bs); 82 83 /* Read a 8bit uint * return it */ 84 uint32_t bs_read_u32(bin_stream_t * bs); 85 86 /* Read a 8bit uint * return it */ 87 uint64_t bs_read_u64(bin_stream_t * bs); 88 89 #endif 90