/*
  * Filename: dyninput.c
  * Authors(s): Roland (Roland@example.com)
  * Description: Short description here
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/

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


char* dyninput_str(int_least64_t maxsize)
{
	char* str = malloc(3 * sizeof(char));
	if (!str)
	{
		puts("\nError allocating memory!");
		return NULL;
	}

	int_least64_t size = 3, i = 0;
	char c = 0;

	do
	{
		if (size == maxsize)
		{
			printf("Character limit of %lld reached!\n", maxsize);
			break;
		}

		c = (char)getchar();
		if (i + 1 == size)
		{
			char* tmp = realloc(str, size + 1);
			if (!tmp)
			{
				puts("Error (re)allocating memory!");
				return NULL;
			}
			str = tmp;
			size++;
		}

		str[i] = c;
		i++;
	} while (c && c != '\n');
	if (str[i - 1] != '\n') str[i - 1] = '\n';
	str[i] = '\0';

	// Sanitise stdin
	while (c != '\n') c = (char)getchar();
	return str;
}