DouKaku?

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

typedef struct tagDailyMenu {
    char date[2];
    char breakfast[500];
    char lunch[500];
    char dinnar[500];
} DailyMenu;

typedef struct tagPerson {
    char family[12];
    char name[12];
    char sex;
    char age[3];
    char year[4];
    char month[3];
} Person;

typedef struct tagRecord {
    Person person;
    DailyMenu days[31];
} Record;

int main(void)
{
    FILE *fp;
    char *filename = "data.dat";
    int readlen = 0;
    Record rec;

    fp = fopen(filename, "r");
    if (fp == NULL) {
        printf("ファイルオープン失敗\n");
        return 1;
    }

    memset(&rec, 0x00, sizeof(Record));
    while ((readlen = fread(&rec.person, 34, 1, fp)) == 1) {

        int readlen2 = 0;
        int day = 0;

        for (day = 0; day < 31; day++) {
            int readlen2 = fread(&rec.days[day], 1502, 1, fp);
            if (readlen2 < 1) {
                printf("ファイルがこわれています。\n");
                break;
            }
        }
        if (day < 31) {
            break;
        }
        printf("name: [%.12s %.12s] %.4s/%.2s [%.2s/%.10s/%.10s/%.10s]\n",
            rec.person.family, rec.person.name,
            rec.person.year, rec.person.month,
            rec.days[0].date, rec.days[30].breakfast,
            rec.days[30].lunch, rec.days[30].dinnar
            );

        memset(&rec, 0x00, sizeof(Record));
    }
    fclose(fp);
    return 0;
}