Autocomplete2

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

typedef struct
{
    double number;
    char *text;
} phrases;

void read_input(phrases **list, int *length)
{
    char *line = NULL;
    int line_length;
    size_t line_size;
    int maxlength = 8;
    line_length = getline(&line, &line_size, stdin);
    *list = (phrases*) malloc (maxlength * sizeof(phrases));
    while (line_length != 1 && line_length != -1)
    {
        double number;
        char *text = (char*) malloc (line_length * sizeof(char));
        if (*length == maxlength)
        {
            maxlength *= 2;
            *list = (phrases*) realloc (*list, maxlength * sizeof(phrases));
        }
        if (sscanf(line, "%lf:%[^\n]", &number, text) != 2)
        {
            free(line);
            for (int i = 0; i < *length; i++)
            {
                free((*list[i]).text);
            }
            free(*list);
            free(text);
            printf("Nespravny vstup.\n");
            exit(1);
        }
        free(line);
        line = NULL;
        (*list)[*length].number = number;
        (*list)[*length].text = text;
        (*length)++;
        line_length = getline(&line, &line_size, stdin);
    }
    free(line);
}

void swap(phrases *a, phrases *b)
{
    double number = (*a).number;
    (*a).number = (*b).number;
    (*b).number = number;
    char *text = (*a).text;
    (*a).text = (*b).text;
    (*b).text = text;
}

void sort(phrases *list, int length)
{
    for (int i = 0; i < length; i++)
    {
        for (int u = 0; u < length - i - 1; u++)
        {
            if ((list[u]).number < (list[u + 1]).number)
            {
                swap(&(list[u]), &(list[u + 1]));
            }
        }
    }
}

int main()
{
    int length = 0;
    phrases *list = NULL;
    printf("Casto hledane fraze:\n");
    read_input(&list, &length);
    printf("%d\n", length);
    sort(list, length);
    for (int i = 0; i < length; i++)
    {
        printf("%lf:%s\n", list[i].number, list[i].text);
    }

    printf("Hledani:\n");
    while(!feof(stdin))
    {
        char *line = NULL;
        int line_length;
        size_t line_size;
        line_length = getline(&line, &line_size, stdin);
        char *word = (char*) malloc (line_length * sizeof(char));
        scanf("%[^\n]", word);
        printf("%s\n", word);
        free(word);
        free(line);
    }
    return 0;
}