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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* getline.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "compat.h"
#include <string.h>
#include <stdlib.h>
#ifndef HAVE_GETLINE
ssize_t getline(char **line, size_t *n, FILE *fp)
{
size_t new_cap, len = 0, cap = 0;
char *buffer = NULL, *new;
int c;
if (feof(fp) || ferror(fp))
return -1;
do {
c = fgetc(fp);
if (ferror(fp))
return -1;
if (c == EOF)
c = '\n';
if (len == cap) {
new_cap = cap ? cap * 2 : 32;
new = realloc(buffer, new_cap);
if (new == NULL)
return -1;
buffer = new;
cap = new_cap;
}
buffer[len++] = c;
} while (c != '\n');
if (len == cap) {
new = realloc(buffer, cap ? cap * 2 : 32);
if (new == NULL)
return -1;
buffer = new;
}
buffer[len] = '\0';
*line = buffer;
*n = len;
return len;
}
#endif
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