argus.c

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

#define MAX 100
#define CLEAR system("clear");

static unsigned int index = 0;

struct human{
    int age;
    char name[MAX];
    char country[MAX];
};

void new_human(struct human *lib){

    lib = (struct human *)malloc(sizeof(struct human));

    printf("\nName: ");
    fgets(lib[index].name, MAX, stdin);

    printf("Country: ");
    fgets(lib[index].country, MAX, stdin);

    printf("Age: ");
    scanf("%i", &lib[index].age);
    printf("\n");
    index++;
}


void save_lib_data(struct human *lib, char *filename){
    FILE *datei = fopen(filename, "a");
    for(index; index>=0; index--){
        fprintf(datei, "\n---------------------------\n");
        fprintf(datei, "Name     : %s", lib[index].name);
        fprintf(datei, "Country  : %s", lib[index].country);
        fprintf(datei, "Age      : %i", lib[index].age);
        fprintf(datei, "-----------------------------\n");
    }
    fclose(datei);
}


int main(int argc, char *args[]){
    unsigned short auswahl;
    struct human *lib;
    while(1){

        CLEAR
        printf("\n1) New Human\n");
        printf("2) Save\n");
        printf("3) Quit\n");

        printf("\n: ");
        scanf("%d", &auswahl);
        getc(stdin);

        if(auswahl == 1){
            new_human(lib);
        }
        else if(auswahl == 2){
            save_lib_data(lib, args[1]);
        }
        else if(auswahl == 3){
            break;
        }
        else{
            printf("Fehlerhafte eingabe\n");
            fseek(stdin,0,SEEK_END);
        }
    }
    printf("\n");
    return 0;
}