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#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
/*
* Copyright (c) 1993, 1994, 1995, INESC. All Rights Reserved.
* Licensed Material-Property of INESC
*
*/
int hexbin(FILE *, unsigned char *, int, int);
int
convhexbin (char *filename, unsigned char *buf, int size)
{
FILE *fpr;
int retval;
register int lastmem;
char str[100];
/* Abre ficheiro de entrada */
if ((fpr=fopen (filename,"rb")) == NULL)
return (-1);
/* le primeira linha do ficheiro stpd */
fgets(str, 80, fpr);
/* Poe buf a 0x00 */
for (lastmem=0 ; lastmem < size ; lastmem++)
buf[lastmem]=0x00;
/* Converte para binario */
retval = hexbin(fpr, buf, 0x100000-1024, 0xfffff);
fclose (fpr);
return retval;
}
int
hexbin(FILE *fpr, unsigned char *ar256k, int firstend, int lastend)
{
unsigned char str [80], i, cc;
u_int linha, nn, xx, nnn, pp;
int lastmem, ind, end, ss;
ind = 0;
linha=0; lastmem=0; ss=0;
while (fgets((char *)str, 80, fpr) != NULL) {
linha++;
if (str[0] == 26)
break;
if (str[0] != ':' || str[7] != '0') {
printf("Error in file input format\n");
printf("%c - unknown format in line %u\n", str[0], linha);
fclose(fpr);
exit(2);
}
sscanf((char *)&str[1], "%2x", &nn);
cc=nn;
switch (str[8]) {
case '0' :
nnn=(nn<<1)+9;
sscanf((char *)&str[3], "%4x", &pp);
cc+=pp+(pp>>8);
end=ss+pp;
for (i=9 ; i<nnn; i+= 2) {
sscanf((char *)&str[i], "%2x", &xx);
if ((end >= firstend) && (end <= lastend)) {
ind=end-firstend;
if (ind > lastmem)
lastmem=ind;
ar256k[ind]=xx;
}
ind++;
end++;
cc+=xx;
}
sscanf((char *)&str[i], "%2x", &xx);
cc+=xx;
if (cc) {
printf("CHECK SUM Error in line %u\n", linha);
fclose(fpr);
exit(2);
}
break;
case '1' :
for (i=3 ; i<11 ; i+=2) {
sscanf((char *)&str[i],"%2x",&xx);
cc+=xx;
}
if (cc) {
printf("CHECK SUM Error in line %u\n", linha);
fclose(fpr);
exit(2);
}
break;
case '2' :
ss=0;
sscanf((char *)&str[9], "%4X", &ss);
ss<<=4;
for (i=3; i<15; i+= 2) {
sscanf((char *)&str[i], "%2x", &xx);
cc+=xx;
}
if (cc) {
printf("CHECK SUM Error in line %u\n",linha);
fclose(fpr);
exit(2);
}
break;
case '3' :
break;
default :
printf("Error in file input format\n");
printf("Type %c - unknown type in line %u\n", str[8], linha);
fclose(fpr);
exit(2);
}
}
return 0;
}
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