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Added endian byteorder code for menu editor

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This commit is contained in:
Michiel Broek
2003-02-10 22:17:35 +00:00
parent 694a34159d
commit 75831ac20c
5 changed files with 430 additions and 339 deletions
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5
lib/Makefile
View File

@@ -11,12 +11,12 @@ COMMON_SRCS = attach.c falists.c hdr.c parsedate.c rfcmsg.c unpacker.c \
batchrd.c charset.c ftn.c pktname.c mangle.c sectest.c \
dostran.c ftnmsg.c mbfile.c nodelock.c rawio.c strcasestr.c \
execute.c expipe.c getheader.c noderecord.c rfcaddr.c strutil.c \
faddr.c gmtoffset.c packet.c rfcdate.c term.c
faddr.c gmtoffset.c packet.c rfcdate.c term.c endian.c
COMMON_OBJS = ftscprod.o attach.o falists.o hdr.o parsedate.o rfcmsg.o unpacker.o \
batchrd.o ftn.o pktname.o mangle.o sectest.o \
dostran.o ftnmsg.o mbfile.o nodelock.o rawio.o strcasestr.o \
execute.o expipe.o getheader.o noderecord.o rfcaddr.o strutil.o \
faddr.o gmtoffset.o packet.o rfcdate.o term.o
faddr.o gmtoffset.o packet.o rfcdate.o term.o endian.o
COMMON_HDRS = common.h
NODELIST_SRCS = nodelist.c
NODELIST_OBJS = nodelist.o
@@ -158,6 +158,7 @@ gmtoffset.o: ../config.h libs.h memwatch.h structs.h common.h
packet.o: ../config.h libs.h memwatch.h structs.h users.h records.h clcomm.h common.h dbnode.h
rfcdate.o: ../config.h libs.h memwatch.h structs.h common.h clcomm.h
term.o: ../config.h libs.h memwatch.h structs.h users.h ansi.h records.h common.h
endian.o: ../config.h libs.h memwatch.h structs.h common.h
dbcfg.o: ../config.h libs.h memwatch.h mbse.h structs.h users.h records.h mberrors.h dbcfg.h
dbdupe.o: ../config.h libs.h memwatch.h structs.h clcomm.h mberrors.h dbdupe.h
dbftn.o: ../config.h libs.h memwatch.h structs.h users.h records.h dbcfg.h dbftn.h

7
lib/common.h
View File

@@ -176,6 +176,13 @@ struct termios tbufs, tbufsavs; /* Structure for raw mode */
/*
* From endian.c
*/
int le_int(int);
/*
* From attach.c
*/

64
lib/endian.c Normal file
View File

@@ -0,0 +1,64 @@
/*****************************************************************************
*
* $Id$
* Purpose ...............: Change integer value CPU endian independant
*
*****************************************************************************
* Copyright (C) 1997-2003
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* MBSE BBS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
#include "../config.h"
#include "libs.h"
#include "memwatch.h"
#include "structs.h"
#include "common.h"
/*
* Return an integer in endian independent format. This is used to make menu
* files portable on little and big-endian systems. Normal datafiles are
* not portable, only the menus.
*/
int le_int(int val)
{
#ifdef BYTE_ORDER
if (BYTE_ORDER == 1234) {
return val;
} else if (BYTE_ORDER == 4321) {
return ((val & 0xff) << 24) | (((val >> 8) & 0xff) << 16) | (((val >> 16) & 0xff) << 8) | ((val >> 24) & 0xff);
} else {
#endif
#ifdef __i386__
return val;
#else
return ((val & 0xff) << 24) | (((val >> 8) & 0xff) << 16) | (((val >> 16) & 0xff) << 8) | ((val >> 24) & 0xff);
#endif
#ifdef BYTE_ORDER
}
#endif
return val;
}