/src/curl/lib/curl_get_line.c
Line | Count | Source |
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 | | #define appendnl(b) \ |
36 | 401k | curlx_dyn_addn(buf, "\n", 1) |
37 | | |
38 | | /* |
39 | | * Curl_get_line() returns only complete whole lines that end with newline. |
40 | | * When 'eof' is set TRUE, the last line has been read. |
41 | | */ |
42 | | CURLcode Curl_get_line(struct dynbuf *buf, FILE *input, bool *eof) |
43 | 401k | { |
44 | 401k | CURLcode result; |
45 | 401k | char buffer[128]; |
46 | 401k | curlx_dyn_reset(buf); |
47 | 401k | while(1) { |
48 | 401k | size_t rlen; |
49 | 401k | char *b = fgets(buffer, sizeof(buffer), input); |
50 | | |
51 | 401k | *eof = feof(input); |
52 | | |
53 | 401k | rlen = b ? strlen(b) : 0; |
54 | 401k | if(rlen) { |
55 | 0 | result = curlx_dyn_addn(buf, b, rlen); |
56 | 0 | if(result) |
57 | | /* too long line or out of memory */ |
58 | 0 | return result; |
59 | 0 | } |
60 | | /* now check the full line */ |
61 | 401k | rlen = curlx_dyn_len(buf); |
62 | 401k | b = curlx_dyn_ptr(buf); |
63 | 401k | if(rlen && (b[rlen-1] == '\n')) |
64 | | /* LF at end of the line */ |
65 | 0 | return CURLE_OK; /* all good */ |
66 | 401k | if(*eof) |
67 | | /* append a newline */ |
68 | 401k | return appendnl(buf); |
69 | | /* otherwise get next line to append */ |
70 | 401k | } |
71 | | /* UNREACHABLE */ |
72 | 401k | } |
73 | | |
74 | | #endif /* if not disabled */ |