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/*
* XMail by Davide Libenzi ( Intranet and Internet mail server )
* Copyright (C) 1999,..,2004 Davide Libenzi
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Davide Libenzi <davidel@xmailserver.org>
*
*/
#include <stdio.h>
static int MkMachIsLE(void)
{
union MachWordBytes {
unsigned int w;
unsigned char b[sizeof(unsigned int)];
} MWB;
MWB.w = 1;
return MWB.b[0] != 0;
}
static int MkMachIsLEBF(void)
{
union MachBitField {
struct {
unsigned int b:1;
} BF;
unsigned int w;
} MWB;
MWB.w = 1;
return MWB.BF.b != 0;
}
static int MkMachGenType(int iBits, char const *pszBase)
{
fprintf(stdout,
"typedef signed %s MachInt%d;\n"
"typedef unsigned %s MachUInt%d;\n"
"#define MACH_TYPE_%dBIT %s\n\n", pszBase, iBits, pszBase, iBits, iBits, pszBase);
return 0;
}
int main(int argc, char *argv[])
{
fprintf(stdout, "#ifndef _MACHDEFS_H\n" "#define _MACHDEFS_H\n\n\n");
if (!MkMachIsLE())
fprintf(stdout, "#define MACH_BIG_ENDIAN_WORDS\n\n");
else
fprintf(stdout, "#undef MACH_BIG_ENDIAN_WORDS\n\n");
if (!MkMachIsLEBF())
fprintf(stdout, "#define MACH_BIG_ENDIAN_BITFIELD\n\n");
else
fprintf(stdout, "#undef MACH_BIG_ENDIAN_BITFIELD\n\n");
if (sizeof(char) == 1)
MkMachGenType(8, "char");
else if (sizeof(short) == 1)
MkMachGenType(8, "short");
else if (sizeof(int) == 1)
MkMachGenType(8, "int");
else if (sizeof(long) == 1)
MkMachGenType(8, "long");
if (sizeof(char) == 2)
MkMachGenType(16, "char");
else if (sizeof(short) == 2)
MkMachGenType(16, "short");
else if (sizeof(int) == 2)
MkMachGenType(16, "int");
else if (sizeof(long) == 2)
MkMachGenType(16, "long");
if (sizeof(char) == 4)
MkMachGenType(32, "char");
else if (sizeof(short) == 4)
MkMachGenType(32, "short");
else if (sizeof(int) == 4)
MkMachGenType(32, "int");
else if (sizeof(long) == 4)
MkMachGenType(32, "long");
fprintf(stdout, "\n\n" "#endif\n\n");
return 0;
}
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