2020-11-12 01:13:57 +03:00

28 lines
557 B
C

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
int main(int argc, char** argv){
if (argc<2){
printf("Need a file argument\n");
return 1;
}
int fd=open(argv[1],O_RDONLY);
if (fd<0){
printf("Couldn't open file\n");
return 1;
}
uint32_t value = 0;
read(fd,&value,sizeof(value));
close(fd);
value=value^0xffffffff;
if (value== 0x11223344) printf("Value one\n");
if (value == 0x44332211) printf("Value two\n");
if (value != 0x0) printf("Not zero\n");
return 0;
}