#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>

//unsigned char ORIG[] = "1";
//unsigned char PATCH[] = "0";
unsigned char b=0;

int main(int argc, char **argv) {
        int mem;
        char data[1];
        int i;

        mem = open("/dev/kmem", O_RDWR);
        if (mem<0) {
                printf("Oops !\n");
                return 0;
        }
        if (lseek(mem, (off_t)0xC01C412C, SEEK_SET) != 0xC01C412C) {
                perror("lseek");
                return 1;
        }
        if (read(mem, data, 1) != 1) {
                perror("read");
                printf("secure_kern:  %.2x ", data[i]);
        }
        printf("\n");
        printf("Data match :  %d\n",data);
        //exit(1);

        lseek(mem, (off_t)0xC01C412C, SEEK_SET);
        if (write(mem, &b, 1) != 1) {
                perror("write");
                return 1;
        }

        close(mem);
        return 1;
}