Structure Writing

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

struct Info
{
    char name[10];
    int number;
};

int main()
{
    struct Info in;
    FILE *fp;

    if((fp = fopen("input.txt", "wb")) == NULL)
    {
        printf("Error opening file.\n");
        exit(1);
    }

    scanf("%d", &in.number);
    getchar();
    gets(in.name);

    if(fwrite(&in, sizeof in, 1, fp) != 1)
    {
        printf("Error writing to file\n");
        exit(2);
    }

    fclose(fp);

    return 0;

}