/src/curl/lib/curl_get_line.c
Line | Count | Source (jump to first uncovered line) |
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 fit in |
37 | | * 'len' bytes and end with a newline. |
38 | | */ |
39 | | char *Curl_get_line(char *buf, int len, FILE *input) |
40 | 662 | { |
41 | 662 | bool partial = FALSE; |
42 | 662 | while(1) { |
43 | 662 | char *b = fgets(buf, len, input); |
44 | | |
45 | 662 | if(b) { |
46 | 0 | size_t rlen = strlen(b); |
47 | |
|
48 | 0 | if(!rlen) |
49 | 0 | break; |
50 | | |
51 | 0 | if(b[rlen-1] == '\n') { |
52 | | /* b is \n terminated */ |
53 | 0 | if(partial) { |
54 | 0 | partial = FALSE; |
55 | 0 | continue; |
56 | 0 | } |
57 | 0 | return b; |
58 | 0 | } |
59 | 0 | else if(feof(input)) { |
60 | 0 | if(partial) |
61 | | /* Line is already too large to return, ignore rest */ |
62 | 0 | break; |
63 | | |
64 | 0 | if(rlen + 1 < (size_t) len) { |
65 | | /* b is EOF terminated, insert missing \n */ |
66 | 0 | b[rlen] = '\n'; |
67 | 0 | b[rlen + 1] = '\0'; |
68 | 0 | return b; |
69 | 0 | } |
70 | 0 | else |
71 | | /* Maximum buffersize reached + EOF |
72 | | * This line is impossible to add a \n to so we'll ignore it |
73 | | */ |
74 | 0 | break; |
75 | 0 | } |
76 | 0 | else |
77 | | /* Maximum buffersize reached */ |
78 | 0 | partial = TRUE; |
79 | 0 | } |
80 | 662 | else |
81 | 662 | break; |
82 | 662 | } |
83 | 662 | return NULL; |
84 | 662 | } |
85 | | |
86 | | #endif /* if not disabled */ |