Error with binary file

#include<stdio.h>
#include <string.h>
void main()
{
    FILE *f = fopen("F:\\hongphat.txt","wb+");
    char *password = "password";
    int l = strlen(password);
    fwrite(&l, sizeof(int), 1, f);
    fwrite(&password, 1, strlen(password), f);
    fclose(f);

    FILE *g = fopen("f:\\hongphat.txt", "rb+");
    char *passwordsame = new char[250];
    int length;
    fread(&length, sizeof(int), 1, g);
    fread(passwordsame, length, 1, g);
    int k = strlen(passwordsame);
    fclose(g);
    delete[]passwordsame;
}

i code this example to make a password for a file, but when i did that, i see that k is not equal to length ( length = 8), can anyone show my mistake