mallocstructlinked.c

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

typedef struct island {
    char *name;
    char *opens;
    char *closes;
    struct island *next;
} island;

void display(island *start){
    
    island *i = start;
    for (; i != NULL; i = i->next){
        printf("Name: %s open %s-%s\n", i->name, i->opens, i->closes);
    }
}

island* create(char *name){
    island *i = malloc(sizeof(island));
    i->name = strdup(name);
    i->opens = "09:00";
    i->closes = "17:00";
    i->next = NULL;
    return i;
}

void release (island *start)
{
    island *i = start;
    island *next = NULL;
    for(; i!= NULL; i=next){
        next = i->next;
        free(i->name);
        free(i);
    }
}

int main(){
    
    island *start = NULL;
    island *i     = NULL;
    island *next  = NULL;
    char name[80];

    for(; fgets(name, 80, stdin) != NULL; i = next){
        next = create(name);
        if (start == NULL)
            start = next;
        if(i != NULL)
            i->next = next;
    }

    display(start);
    release(start);

    return 0;

}