1234353Sdim#include "config.h"
2212795Sdim
3212795Sdim#if HAVE_GETLINE
4212795Sdim
5212795Sdimint dummy;
6212795Sdim
7212795Sdim#else
8212795Sdim
9212795Sdim/*	Id: compat_getline.c,v 1.1 2015/11/07 20:52:52 schwarze Exp  */
10212795Sdim/*
11212795Sdim * Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org>
12212795Sdim *
13212795Sdim * Permission to use, copy, modify, and distribute this software for any
14212795Sdim * purpose with or without fee is hereby granted, provided that the above
15212795Sdim * copyright notice and this permission notice appear in all copies.
16239462Sdim *
17249423Sdim * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
18212795Sdim * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
19212795Sdim * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
20212795Sdim * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
21249423Sdim * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
22249423Sdim * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
23212795Sdim * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24212795Sdim */
25212795Sdim
26212795Sdim#include <sys/types.h>
27212795Sdim#include <errno.h>
28212795Sdim#include <stdio.h>
29212795Sdim#include <stdlib.h>
30212795Sdim
31212795Sdimssize_t
32212795Sdimgetline(char **buf, size_t *bufsz, FILE *fp)
33212795Sdim{
34212795Sdim	char	*nbuf;
35212795Sdim	size_t	 nbufsz, pos;
36212795Sdim	int	 c;
37212795Sdim
38263508Sdim	if (buf == NULL || bufsz == NULL) {
39212795Sdim		errno = EINVAL;
40212795Sdim		return -1;
41212795Sdim	}
42212795Sdim
43212795Sdim	if (*buf == NULL)
44212795Sdim		*bufsz = 0;
45212795Sdim	else
46212795Sdim		**buf = '\0';
47212795Sdim
48212795Sdim	pos = 0;
49212795Sdim	for (;;) {
50212795Sdim		if (pos + 1 >= *bufsz) {
51212795Sdim			nbufsz = *bufsz ? *bufsz * 2 : BUFSIZ;
52212795Sdim			if ((nbuf = realloc(*buf, nbufsz)) == NULL)
53212795Sdim				return -1;
54212795Sdim			*buf = nbuf;
55212795Sdim			*bufsz = nbufsz;
56212795Sdim		}
57212795Sdim		if ((c = fgetc(fp)) == EOF) {
58212795Sdim			(*buf)[pos] = '\0';
59212795Sdim			return pos > 0 && feof(fp) ? (ssize_t)pos : -1;
60212795Sdim		}
61212795Sdim		(*buf)[pos++] = c;
62212795Sdim		(*buf)[pos] = '\0';
63212795Sdim		if (c == '\n')
64212795Sdim			return pos;
65212795Sdim	}
66221345Sdim}
67221345Sdim
68212795Sdim#endif
69212795Sdim