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#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
void die(const char *message) {
perror(message);
exit(1);
}
char *formatBytes(double *bytes) {
char *SIZES[] = {"bytes", "kB", "MB", "GB"};
size_t size = *bytes;
size_t div = 0;
size_t rem = 0;
while (size >= 1024 && div < (sizeof SIZES / sizeof *SIZES)) {
rem = (size % 1024);
div++;
size /= 1024;
}
*bytes = (float)size + (float)rem / 1024.0;
return SIZES[div];
}
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