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#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#define TRUE 1
#define FALSE 0
static const int ToHex(char c)
{
c=toupper(c);
if (c>='0' && c<='9')
return c-'0';
if (c>='A' && c<='F')
return c-'A'+10;
return 0;
}
int main (int argc, char *argv[])
{
FILE *in, *out;
char buff[1024];
int done;
int tot;
if (argc!=3)
{
fprintf(stderr,"%s: usage %s source dest\n",argv[0],argv[0]);
exit(EXIT_FAILURE);
}
if (!(in=fopen(argv[1],"r")))
{
fprintf(stderr,"Couldn't open '%s'\n",argv[1]);
exit(EXIT_FAILURE);
}
if (!(out=fopen(argv[2],"wb")))
{
fprintf(stderr,"Couldn't create '%s'\n",argv[2]);
exit(EXIT_FAILURE);
}
done=0;
tot=0;
while(!done)
{
if (!fgets(buff,sizeof buff,in))
{
printf("Missing EOF record\n");
done=TRUE;
}
if (!done && buff[0]!=':')
{
printf("Invalid Intel HEX file\n");
done=TRUE;
}
if (!done && buff[8]=='1')
{
done=TRUE;
}
if (!done)
{
int len;
int f;
len=ToHex(buff[1])<<4|ToHex(buff[2]);
for(f=0;f<len;f++)
{
int b;
b=ToHex(buff[f*2+9])<<4|ToHex(buff[f*2+10]);
putc(b,out);
}
}
}
return EXIT_SUCCESS;
}
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