1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 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.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 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24
25 #include "curl_setup.h"
26
27 #if !defined(CURL_DISABLE_COOKIES) || !defined(CURL_DISABLE_ALTSVC) || \
28 !defined(CURL_DISABLE_HSTS) || !defined(CURL_DISABLE_NETRC)
29
30 #include "curl_get_line.h"
31 #include "curl_memory.h"
32 /* The last #include file should be: */
33 #include "memdebug.h"
34
35 /*
36 * Curl_get_line() makes sure to only return complete whole lines that end
37 * newlines.
38 */
Curl_get_line(struct dynbuf * buf,FILE * input)39 int Curl_get_line(struct dynbuf *buf, FILE *input)
40 {
41 CURLcode result;
42 char buffer[128];
43 Curl_dyn_reset(buf);
44 while(1) {
45 char *b = fgets(buffer, sizeof(buffer), input);
46
47 if(b) {
48 size_t rlen = strlen(b);
49
50 if(!rlen)
51 break;
52
53 result = Curl_dyn_addn(buf, b, rlen);
54 if(result)
55 /* too long line or out of memory */
56 return 0; /* error */
57
58 else if(b[rlen-1] == '\n')
59 /* end of the line */
60 return 1; /* all good */
61
62 else if(feof(input)) {
63 /* append a newline */
64 result = Curl_dyn_addn(buf, "\n", 1);
65 if(result)
66 /* too long line or out of memory */
67 return 0; /* error */
68 return 1; /* all good */
69 }
70 }
71 else
72 break;
73 }
74 return 0;
75 }
76
77 #endif /* if not disabled */
78
