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/*
atarisio - A UNIX backend for an Atari SIO2PC lead.
Copyright (C) 2004 Ian Cowburn (ianc@noddybox.demon.co.uk)
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
-------------------------------------------------------------------------
Global utilities and types
*/
static const char ident[]="$Id$";
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <ctype.h>
#include "util.h"
static const char ident_h[]=ATARISIO_UTIL_H;
#define HEX_DUMP_LINE 16
/* ---------------------------------------- INTERFACES
*/
void *Malloc(size_t size)
{
void *new=malloc(size);
if (!new)
{
fprintf(stderr,"malloc failed for %lu bytes\n",(unsigned long)size);
exit(EXIT_FAILURE);
}
return new;
}
void *Realloc(void *p, size_t size)
{
void *new=realloc(p,size);
if (!new)
{
fprintf(stderr,"realloc failed for %lu bytes\n",(unsigned long)size);
exit(EXIT_FAILURE);
}
return new;
}
char *StrCopy(const char *source)
{
return strcpy(Malloc(strlen(source)+1),source);
}
int YesNo(const char *str, int *flag)
{
if (strcasecmp(str,"on")==0 ||
strcasecmp(str,"yes")==0 ||
strcasecmp(str,"1")==0)
{
*flag=1;
return 1;
}
if (strcasecmp(str,"off")==0 ||
strcasecmp(str,"no")==0 ||
strcasecmp(str,"0")==0)
{
*flag=0;
return 1;
}
return 0;
}
void HexDump(const uchar *p, size_t len)
{
char asc[HEX_DUMP_LINE+1];
size_t f;
f=0;
while(f<len)
{
if ((f%HEX_DUMP_LINE)==0)
printf("%4.4x: ",f);
printf(" %2.2x",p[f]);
if (isprint(p[f]))
asc[f%HEX_DUMP_LINE]=p[f];
else
asc[f%HEX_DUMP_LINE]='.';
asc[(f%HEX_DUMP_LINE)+1]=0;
f++;
if ((f%HEX_DUMP_LINE)==0)
printf(" %s\n",asc);
}
if (f%HEX_DUMP_LINE)
{
while(f%HEX_DUMP_LINE)
{
printf(" ");
f++;
}
printf(" %s\n",asc);
}
}
int GetInt(const char *p)
{
long l;
l=strtol(p,NULL,0);
return l;
}
uchar Checksum(const uchar *p, size_t len)
{
int sum;
size_t f;
sum=0;
for(f=0;f<len;f++)
{
sum+=p[f];
sum=(sum&0xff)+(sum>>8);
}
return (uchar)(sum&0xff);
}
/* END OF FILE */
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