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comparison mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_CHUNK_DATA.3 @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 .\" **************************************************************************
2 .\" * _ _ ____ _
3 .\" * Project ___| | | | _ \| |
4 .\" * / __| | | | |_) | |
5 .\" * | (__| |_| | _ <| |___
6 .\" * \___|\___/|_| \_\_____|
7 .\" *
8 .\" * Copyright (C) 1998 - 2017, 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.
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15 .\" * copies of the Software, and permit persons to whom the Software is
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18 .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 .\" * KIND, either express or implied.
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21 .\" **************************************************************************
22 .\"
23 .TH CURLOPT_CHUNK_DATA 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
24 .SH NAME
25 CURLOPT_CHUNK_DATA \- custom pointer to the FTP chunk callbacks
26 .SH SYNOPSIS
27 #include <curl/curl.h>
28
29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CHUNK_DATA, void *pointer);
30 .SH DESCRIPTION
31 Pass a \fIpointer\fP that will be untouched by libcurl and passed as the ptr
32 argument to the \fICURLOPT_CHUNK_BGN_FUNCTION(3)\fP and
33 \fICURLOPT_CHUNK_END_FUNCTION(3)\fP.
34 .SH DEFAULT
35 NULL
36 .SH PROTOCOLS
37 FTP
38 .SH EXAMPLE
39 .nf
40 static long file_is_coming(struct curl_fileinfo *finfo,
41 struct callback_data *data,
42 int remains)
43 {
44 printf("%3d %40s %10luB ", remains, finfo->filename,
45 (unsigned long)finfo->size);
46
47 switch(finfo->filetype) {
48 case CURLFILETYPE_DIRECTORY:
49 printf(" DIR\\n");
50 break;
51 case CURLFILETYPE_FILE:
52 printf("FILE ");
53 break;
54 default:
55 printf("OTHER\\n");
56 break;
57 }
58
59 if(finfo->filetype == CURLFILETYPE_FILE) {
60 /* do not transfer files >= 50B */
61 if(finfo->size > 50) {
62 printf("SKIPPED\\n");
63 return CURL_CHUNK_BGN_FUNC_SKIP;
64 }
65
66 data->output = fopen(finfo->filename, "wb");
67 if(!data->output) {
68 return CURL_CHUNK_BGN_FUNC_FAIL;
69 }
70 }
71
72 return CURL_CHUNK_BGN_FUNC_OK;
73 }
74
75 int main()
76 {
77 /* data for callback */
78 struct callback_data callback_info;
79
80 /* callback is called before download of concrete file started */
81 curl_easy_setopt(curl, CURLOPT_CHUNK_BGN_FUNCTION, file_is_coming);
82 curl_easy_setopt(curl, CURLOPT_CHUNK_DATA, &callback_info);
83 }
84 .fi
85 .SH AVAILABILITY
86 Added in 7.21.0
87 .SH RETURN VALUE
88 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
89 .SH "SEE ALSO"
90 .BR CURLOPT_CHUNK_BGN_FUNCTION "(3), " CURLOPT_WILDCARDMATCH "(3), "