[dovecot-cvs] dovecot/src/lib byteorder.c,NONE,1.1 byteorder.h,NONE,1.1 Makefile.am,1.31,1.32

[cras at procontrol.fi]

Update of /home/cvs/dovecot/src/lib
In directory danu:/tmp/cvs-serv9725/lib

Modified Files:
	Makefile.am 
Added Files:
	byteorder.c byteorder.h 
Log Message:
Added some network byte ordering functions and macros



--- NEW FILE: byteorder.c ---
/* Copyright (C) 2003 Timo Sirainen */

#include "lib.h"
#include "byteorder.h"

#ifndef WORDS_BIGENDIAN
void nbo_to_host(void *data, size_t size)
{
	if (size == sizeof(uint32_t)) {
		uint32_t *num = (uint32_t *) data;

		*num = ntohl(*num);
	} else if (size == sizeof(uint32_t)*2) {
		uint32_t *num = (uint32_t *) data;
		uint32_t temp;

		temp = ntohl(num[0]);
		num[0] = ntohl(num[1]);
		num[1] = temp;
	}
}

void host_to_nbo(void *data, size_t size)
{
	if (size == sizeof(uint32_t)) {
		uint32_t *num = (uint32_t *) data;

		*num = htonl(*num);
	} else if (size == sizeof(uint32_t)*2) {
		uint32_t *num = (uint32_t *) data;
		uint32_t temp;

		temp = htonl(num[0]);
		num[0] = htonl(num[1]);
		num[1] = temp;
	}
}
#endif

--- NEW FILE: byteorder.h ---
#ifndef __BYTEORDER_H
#define __BYTEORDER_H

#ifdef WORDS_BIGENDIAN

/* Bits in network byte order */
#  define NBO32_BIT0	0x00000001
#  define NBO32_BIT1	0x00000002
#  define NBO32_BIT2	0x00000004
#  define NBO32_BIT3	0x00000008
#  define NBO32_BIT4	0x00000010
#  define NBO32_BIT5	0x00000020
#  define NBO32_BIT6	0x00000040
#  define NBO32_BIT7	0x00000080
#  define NBO32_BIT8	0x00000100
#  define NBO32_BIT9	0x00000200
#  define NBO32_BIT10	0x00000400
#  define NBO32_BIT11	0x00000800
#  define NBO32_BIT12	0x00001000
#  define NBO32_BIT13	0x00002000
#  define NBO32_BIT14	0x00004000
#  define NBO32_BIT15	0x00008000
#  define NBO32_BIT16	0x00010000
#  define NBO32_BIT17	0x00020000
#  define NBO32_BIT18	0x00040000
#  define NBO32_BIT19	0x00080000
#  define NBO32_BIT20	0x00100000
#  define NBO32_BIT21	0x00200000
#  define NBO32_BIT22	0x00400000
#  define NBO32_BIT23	0x00800000
#  define NBO32_BIT24	0x01000000
#  define NBO32_BIT25	0x02000000
#  define NBO32_BIT26	0x04000000
#  define NBO32_BIT27	0x08000000
#  define NBO32_BIT28	0x10000000
#  define NBO32_BIT29	0x20000000
#  define NBO32_BIT30	0x40000000
#  define NBO32_BIT31	0x80000000

#  define nbo_to_host(data, size)
#  define host_to_nbo(data, size)
#  define nbo_to_uint32(num) (num)
#  define uint32_to_nbo(num) (num)
#else

/* We support only big endian and little endian. AFAIK PDP-endian is the
   only third used one but I don't think I need PDP-support for now :) */
#include <arpa/inet.h>

/* Bits in network byte order */
#  define NBO32_BIT0	0x01000000
#  define NBO32_BIT1	0x02000000
#  define NBO32_BIT2	0x04000000
#  define NBO32_BIT3	0x08000000
#  define NBO32_BIT4	0x10000000
#  define NBO32_BIT5	0x20000000
#  define NBO32_BIT6	0x40000000
#  define NBO32_BIT7	0x80000000
#  define NBO32_BIT8	0x00010000
#  define NBO32_BIT9	0x00020000
#  define NBO32_BIT10	0x00040000
#  define NBO32_BIT11	0x00080000
#  define NBO32_BIT12	0x00100000
#  define NBO32_BIT13	0x00200000
#  define NBO32_BIT14	0x00400000
#  define NBO32_BIT15	0x00800000
#  define NBO32_BIT16	0x00000100
#  define NBO32_BIT17	0x00000200
#  define NBO32_BIT18	0x00000400
#  define NBO32_BIT19	0x00000800
#  define NBO32_BIT20	0x00001000
#  define NBO32_BIT21	0x00002000
#  define NBO32_BIT22	0x00004000
#  define NBO32_BIT23	0x00008000
#  define NBO32_BIT24	0x00000001
#  define NBO32_BIT25	0x00000002
#  define NBO32_BIT26	0x00000004
#  define NBO32_BIT27	0x00000008
#  define NBO32_BIT28	0x00000010
#  define NBO32_BIT29	0x00000020
#  define NBO32_BIT30	0x00000040
#  define NBO32_BIT31	0x00000080

void nbo_to_host(void *data, size_t size);
void host_to_nbo(void *data, size_t size);

#  define nbo_to_uint32(num) ntohl(num)
#  define uint32_to_nbo(num) htonl(num)
#endif

#endif

Index: Makefile.am
===================================================================
RCS file: /home/cvs/dovecot/src/lib/Makefile.am,v
retrieving revision 1.31
retrieving revision 1.32
diff -u -d -r1.31 -r1.32
--- Makefile.am	18 May 2003 16:02:46 -0000	1.31
+++ Makefile.am	6 Aug 2003 19:56:20 -0000	1.32
@@ -4,6 +4,7 @@
 	alarm-hup.c \
 	base64.c \
 	buffer.c \
+	byteorder.c \
 	compat.c \
 	data-stack.c \
 	env-util.c \
@@ -62,6 +63,7 @@
 	alarm-hup.h \
 	base64.h \
 	buffer.h \
+	byteorder.h \
 	compat.h \
 	data-stack.h \
 	env-util.h \