mirror of
https://github.com/hsoft/collapseos.git
synced 2024-12-29 15:08:05 +11:00
30 lines
665 B
C
30 lines
665 B
C
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
/* Update the "LATEST" offset of target Forth binary according to filesize. */
|
|
|
|
#define OFFSET 0x08
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
if (argc != 2) {
|
|
fprintf(stderr, "Usage: ./slatest fname\n");
|
|
return 1;
|
|
}
|
|
FILE *fp = fopen(argv[1], "r+");
|
|
if (!fp) {
|
|
fprintf(stderr, "Can't open %s.\n", argv[1]);
|
|
return 1;
|
|
}
|
|
fseek(fp, 0, SEEK_END);
|
|
unsigned int bytecount = ftell(fp);
|
|
fseek(fp, OFFSET, SEEK_SET);
|
|
char buf[2];
|
|
buf[0] = bytecount & 0xff;
|
|
buf[1] = bytecount >> 8;
|
|
fwrite(buf, 2, 1, fp);
|
|
fclose(fp);
|
|
}
|