59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/*
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* Filename: dyninput.c
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* Authors(s): Roland (Roland@example.com)
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* Description: Short description here
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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char* dyninput_str(int_least64_t maxsize)
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{
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char* str = malloc(3 * sizeof(char));
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if (!str)
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{
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puts("\nError allocating memory!");
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return NULL;
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}
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int_least64_t size = 3, i = 0;
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char c = 0;
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do
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{
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if (size == maxsize)
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{
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printf("Character limit of %lld reached!\n", maxsize);
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break;
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}
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c = (char)getchar();
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if (i + 1 == size)
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{
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char* tmp = realloc(str, size + 1);
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if (!tmp)
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{
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puts("Error (re)allocating memory!");
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return NULL;
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}
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str = tmp;
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size++;
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}
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str[i] = c;
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i++;
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} while (c && c != '\n');
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if (str[i - 1] != '\n') str[i - 1] = '\n';
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str[i] = '\0';
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// Sanitise stdin
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while (c != '\n') c = (char)getchar();
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return str;
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}
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