1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23#include "curl_setup.h"
24
25#include "curl_get_line.h"
26#include "curl_memory.h"
27/* The last #include file should be: */
28#include "memdebug.h"
29
30/*
31 * get_line() makes sure to only return complete whole lines that fit in 'len'
32 * bytes and end with a newline.
33 */
34char *Curl_get_line(char *buf, int len, FILE *input)
35{
36 bool partial = FALSE;
37 while(1) {
38 char *b = fgets(buf, len, input);
39 if(b) {
40 size_t rlen = strlen(b);
41 if(rlen && (b[rlen-1] == '\n')) {
42 if(partial) {
43 partial = FALSE;
44 continue;
45 }
46 return b;
47 }
48 /* read a partial, discard the next piece that ends with newline */
49 partial = TRUE;
50 }
51 else
52 break;
53 }
54 return NULL;
55}
56