} boot_block_t;
#define IMGBLK 512
-char tmpbuf[IMGBLK];
+unsigned int tmpbuf[IMGBLK / sizeof(unsigned int)];
int main(int argc, char *argv[])
{
int in_fd, out_fd;
int nblks, i;
- uint cksum, *cp;
+ unsigned int cksum, *cp;
struct stat st;
boot_block_t bt;
cksum = 0;
cp = (void *)&bt;
- for (i=0; i<sizeof(bt)/sizeof(uint); i++)
+ for (i = 0; i < sizeof(bt) / sizeof(unsigned int); i++)
cksum += *cp++;
/* Assume zImage is an ELF file, and skip the 64K header.
*/
- if (read(in_fd, tmpbuf, IMGBLK) != IMGBLK) {
+ if (read(in_fd, tmpbuf, sizeof(tmpbuf)) != sizeof(tmpbuf)) {
fprintf(stderr, "%s is too small to be an ELF image\n",
argv[1]);
exit(4);
}
- if ((*(uint *)tmpbuf) != htonl(0x7f454c46)) {
+ if (tmpbuf[0] != htonl(0x7f454c46)) {
fprintf(stderr, "%s is not an ELF image\n", argv[1]);
exit(4);
}
}
while (nblks-- > 0) {
- if (read(in_fd, tmpbuf, IMGBLK) < 0) {
+ if (read(in_fd, tmpbuf, sizeof(tmpbuf)) < 0) {
perror("zImage read");
exit(5);
}
- cp = (uint *)tmpbuf;
- for (i=0; i<sizeof(tmpbuf)/sizeof(uint); i++)
+ cp = tmpbuf;
+ for (i = 0; i < sizeof(tmpbuf) / sizeof(unsigned int); i++)
cksum += *cp++;
if (write(out_fd, tmpbuf, sizeof(tmpbuf)) != sizeof(tmpbuf)) {
perror("boot-image write");