golden hour

/usr/include/bind9/isccc

File/Folder	Size	Actions
alist.h	2.34 KB
base64.h	2.38 KB
cc.h	3.62 KB
ccmsg.h	3.54 KB
events.h	1.5 KB
lib.h	1.53 KB
result.h	2.15 KB
sexpr.h	2.94 KB
symtab.h	4.13 KB
symtype.h	1.42 KB
types.h	1.73 KB
util.h	4.89 KB
version.h	706 B

Edit: util.h

/*
 * Portions Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * Portions Copyright (C) 2001 Nominum, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NOMINUM DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef ISCCC_UTIL_H
#define ISCCC_UTIL_H 1

#include <isc/util.h>

/*! \file isccc/util.h
 * \brief
 * Macros for dealing with unaligned numbers.
 *
 * \note no side effects are allowed when invoking these macros!
 */

#define GET8(v, w) \
	do { \
		v = *w; \
		w++; \
	} while (0)

#define GET16(v, w) \
	do { \
		v = (unsigned int)w[0] << 8; \
		v |= (unsigned int)w[1]; \
		w += 2; \
	} while (0)

#define GET24(v, w) \
	do { \
		v = (unsigned int)w[0] << 16; \
		v |= (unsigned int)w[1] << 8; \
		v |= (unsigned int)w[2]; \
		w += 3; \
	} while (0)

#define GET32(v, w) \
	do { \
		v = (unsigned int)w[0] << 24; \
		v |= (unsigned int)w[1] << 16; \
		v |= (unsigned int)w[2] << 8; \
		v |= (unsigned int)w[3]; \
		w += 4; \
	} while (0)

#define GET64(v, w) \
	do { \
		v = (isc_uint64_t)w[0] << 56; \
		v |= (isc_uint64_t)w[1] << 48; \
		v |= (isc_uint64_t)w[2] << 40; \
		v |= (isc_uint64_t)w[3] << 32; \
		v |= (isc_uint64_t)w[4] << 24; \
		v |= (isc_uint64_t)w[5] << 16; \
		v |= (isc_uint64_t)w[6] << 8; \
		v |= (isc_uint64_t)w[7]; \
		w += 8; \
	} while (0)

#define GETC16(v, w, d) \
	do { \
		GET8(v, w); \
		if (v == 0) \
			d = ISCCC_TRUE; \
		else { \
			d = ISCCC_FALSE; \
			if (v == 255) \
				GET16(v, w); \
		} \
	} while (0)

#define GETC32(v, w) \
	do { \
		GET24(v, w); \
		if (v == 0xffffffu) \
			GET32(v, w); \
	} while (0)

#define GET_OFFSET(v, w)		GET32(v, w)

#define GET_MEM(v, c, w) \
	do { \
		memmove(v, w, c); \
		w += c; \
	} while (0)

#define GET_TYPE(v, w) \
	do { \
		GET8(v, w); \
		if (v > 127) { \
			if (v < 255) \
				v = ((v & 0x7f) << 16) | ISCCC_RDATATYPE_SIG; \
			else \
				GET32(v, w); \
		} \
	} while (0)

#define PUT8(v, w) \
	do { \
		*w = (v & 0x000000ffU); \
		w++; \
	} while (0)

#define PUT16(v, w) \
	do { \
		w[0] = (v & 0x0000ff00U) >> 8; \
		w[1] = (v & 0x000000ffU); \
		w += 2; \
	} while (0)

#define PUT24(v, w) \
	do { \
		w[0] = (v & 0x00ff0000U) >> 16; \
		w[1] = (v & 0x0000ff00U) >> 8; \
		w[2] = (v & 0x000000ffU); \
		w += 3; \
	} while (0)

#define PUT32(v, w) \
	do { \
		w[0] = (v & 0xff000000U) >> 24; \
		w[1] = (v & 0x00ff0000U) >> 16; \
		w[2] = (v & 0x0000ff00U) >> 8; \
		w[3] = (v & 0x000000ffU); \
		w += 4; \
	} while (0)

#define PUT64(v, w) \
	do { \
		w[0] = (v & 0xff00000000000000ULL) >> 56; \
		w[1] = (v & 0x00ff000000000000ULL) >> 48; \
		w[2] = (v & 0x0000ff0000000000ULL) >> 40; \
		w[3] = (v & 0x000000ff00000000ULL) >> 32; \
		w[4] = (v & 0x00000000ff000000ULL) >> 24; \
		w[5] = (v & 0x0000000000ff0000ULL) >> 16; \
		w[6] = (v & 0x000000000000ff00ULL) >> 8; \
		w[7] = (v & 0x00000000000000ffULL); \
		w += 8; \
	} while (0)

#define PUTC16(v, w) \
	do { \
		if (v > 0 && v < 255) \
			PUT8(v, w); \
		else { \
			PUT8(255, w); \
			PUT16(v, w); \
		} \
	} while (0)

#define PUTC32(v, w) \
	do { \
		if (v < 0xffffffU) \
			PUT24(v, w); \
		else { \
			PUT24(0xffffffU, w); \
			PUT32(v, w); \
		} \
	} while (0)

#define PUT_OFFSET(v, w)		PUT32(v, w)

#include <string.h>

#define PUT_MEM(s, c, w) \
	do { \
		memmove(w, s, c); \
		w += c; \
	} while (0)

/*
 * Regions.
 */
#define REGION_SIZE(r)		((unsigned int)((r).rend - (r).rstart))
#define REGION_EMPTY(r)		((r).rstart == (r).rend)
#define REGION_FROMSTRING(r, s) do { \
	(r).rstart = (unsigned char *)s; \
	(r).rend = (r).rstart + strlen(s); \
} while (0)

/*%
 * Use this to remove the const qualifier of a variable to assign it to
 * a non-const variable or pass it as a non-const function argument ...
 * but only when you are sure it won't then be changed!
 * This is necessary to sometimes shut up some compilers
 * (as with gcc -Wcast-qual) when there is just no other good way to avoid the
 * situation.
 */
#define DE_CONST(konst, var) \
	do { \
		union { const void *k; void *v; } _u; \
		_u.k = konst; \
		var = _u.v; \
	} while (0)

#endif /* ISCCC_UTIL_H */