/* $NetBSD: auconv.h,v 1.5.72.1 2024/03/12 10:04:22 martin Exp $ */ /*- * Copyright (c) 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson. * * 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. * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #include #include /* Convert between signed and unsigned. */ static inline void change_sign8(u_char *, int); static inline void change_sign16_le(u_char *, int); static inline void change_sign16_be(u_char *, int); static inline void change_sign32_le(u_char *, int); static inline void change_sign32_be(u_char *, int); /* Convert between little and big endian. */ static inline void swap_bytes(u_char *, int); static inline void swap_bytes32(u_char *, int); static inline void swap_bytes_change_sign16_le(u_char *, int); static inline void swap_bytes_change_sign16_be(u_char *, int); static inline void change_sign16_swap_bytes_le(u_char *, int); static inline void change_sign16_swap_bytes_be(u_char *, int); static inline void swap_bytes_change_sign32_le(u_char *, int); static inline void swap_bytes_change_sign32_be(u_char *, int); static inline void change_sign32_swap_bytes_le(u_char *, int); static inline void change_sign32_swap_bytes_be(u_char *, int); static inline void change_sign8(u_char *p, int cc) { while (--cc >= 0) { *p ^= 0x80; ++p; } } static inline void change_sign16_le(u_char *p, int cc) { while ((cc -= 2) >= 0) { p[1] ^= 0x80; p += 2; } } static inline void change_sign16_be(u_char *p, int cc) { while ((cc -= 2) >= 0) { p[0] ^= 0x80; p += 2; } } static inline void change_sign24_le(u_char *p, int cc) { while ((cc -= 3) >= 0) { p[2] ^= 0x80; p += 3; } } static inline void change_sign24_be(u_char *p, int cc) { while ((cc -= 3) >= 0) { p[0] ^= 0x80; p += 3; } } static inline void change_sign32_le(u_char *p, int cc) { while ((cc -= 4) >= 0) { p[3] ^= 0x80; p += 4; } } static inline void change_sign32_be(u_char *p, int cc) { while ((cc -= 4) >= 0) { p[0] ^= 0x80; p += 4; } } static inline void swap_bytes(u_char *p, int cc) { u_char t; while ((cc -= 2) >= 0) { t = p[0]; p[0] = p[1]; p[1] = t; p += 2; } } static inline void swap_bytes32(u_char *p, int cc) { u_char t; while ((cc -= 4) >= 0) { t = p[0]; p[0] = p[3]; p[3] = t; t = p[1]; p[1] = p[2]; p[2] = t; p += 4; } } static inline void swap_bytes_change_sign16_le(u_char *p, int cc) { u_char t; while ((cc -= 2) >= 0) { t = p[1]; p[1] = p[0] ^ 0x80; p[0] = t; p += 2; } } static inline void swap_bytes_change_sign16_be(u_char *p, int cc) { u_char t; while ((cc -= 2) >= 0) { t = p[0]; p[0] = p[1] ^ 0x80; p[1] = t; p += 2; } } static inline void change_sign16_swap_bytes_le(u_char *p, int cc) { swap_bytes_change_sign16_be(p, cc); } static inline void change_sign16_swap_bytes_be(u_char *p, int cc) { swap_bytes_change_sign16_le(p, cc); } static inline void swap_bytes_change_sign24_le(u_char *p, int cc) { u_char t; while ((cc -= 3) >= 0) { t = p[2]; p[2] = p[0] ^ 0x80; p[0] = t; p += 3; } } static inline void swap_bytes_change_sign24_be(u_char *p, int cc) { u_char t; while ((cc -= 3) >= 0) { t = p[0]; p[0] = p[2] ^ 0x80; p[2] = t; p += 3; } } static inline void change_sign24_swap_bytes_le(u_char *p, int cc) { swap_bytes_change_sign24_be(p, cc); } static inline void change_sign24_swap_bytes_be(u_char *p, int cc) { swap_bytes_change_sign24_le(p, cc); } static inline void swap_bytes_change_sign32_le(u_char *p, int cc) { u_char t; while ((cc -= 4) >= 0) { t = p[3]; p[3] = p[0] ^ 0x80; p[0] = t; t = p[1]; p[1] = p[2]; p[2] = t; p += 4; } } static inline void swap_bytes_change_sign32_be(u_char *p, int cc) { u_char t; while ((cc -= 4) >= 0) { t = p[0]; p[0] = p[3] ^ 0x80; p[3] = t; t = p[1]; p[1] = p[2]; p[2] = t; p += 4; } } static inline void change_sign32_swap_bytes_le(u_char *p, int cc) { swap_bytes_change_sign32_be(p, cc); } static inline void change_sign32_swap_bytes_be(u_char *p, int cc) { swap_bytes_change_sign32_le(p, cc); }