#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define BUFSIZE (8*1024)
#define IMG_SIZE (8*1024)
#define SPL_HEADER_SIZE 16
//#define FILE_PERM (S_IRUSR | S_IWUSR | S_IRGRP \
| S_IWGRP | S_IROTH | S_IWOTH)
#define SPL_HEADER "S5PC110 HEADER "
int main (int argc, char *argv[])
{
FILE *fp;
char *Buf, *a;
int BufLen;
int nbytes, fileLen;
unsigned int checksum, count;
int i;
//////////////////////////////////////////////////////////////
if (argc != 3)
{
printf("Usage: mkbl1 <source file> <destination file>\n");
return -1;
}
//////////////////////////////////////////////////////////////
BufLen = BUFSIZE;
Buf = (char *)malloc(BufLen);
if (!Buf)
{
printf("Alloc buffer failed!\n");
return -1;
}
memset(Buf, 0x00, BufLen);
//////////////////////////////////////////////////////////////
fp = fopen(argv[1], "rb");
if( fp == NULL)
{
printf("source file open error\n");
free(Buf);
return -1;
}
fseek(fp, 0L, SEEK_END);
fileLen = ftell(fp);
fseek(fp, 0L, SEEK_SET);
#if 0
if ( BufLen > fileLen )
{
printf("Usage: unsupported size\n");
free(Buf);
fclose(fp);
return -1;
}
#endif
count = (fileLen < (IMG_SIZE - SPL_HEADER_SIZE))
? fileLen : (IMG_SIZE - SPL_HEADER_SIZE);
memcpy(&Buf[0], SPL_HEADER, SPL_HEADER_SIZE);
nbytes = fread(Buf + SPL_HEADER_SIZE, 1, count, fp);
if ( nbytes != count )
{
printf("source file read error\n");
free(Buf);
fclose(fp);
return -1;
}
fclose(fp);
//////////////////////////////////////////////////////////////
a = Buf + SPL_HEADER_SIZE;
for(i = 0, checksum = 0; i < IMG_SIZE - SPL_HEADER_SIZE; i++)
checksum += (0x000000FF) & *a++;
a = Buf + 8;
*( (unsigned int *)a ) = checksum;
//////////////////////////////////////////////////////////////
fp = fopen(argv[2], "wb");
if (fp == NULL)
{
printf("destination file open error\n");
free(Buf);
return -1;
}
a = Buf;
nbytes = fwrite( a, 1, BufLen, fp);
if ( nbytes != BufLen )
{
printf("destination file write error\n");
free(Buf);
fclose(fp);
return -1;
}
free(Buf);
fclose(fp);
return 0;
}
