1 .\" **************************************************************************
3 .\" * Project ___| | | | _ \| |
4 .\" * / __| | | | |_) | |
5 .\" * | (__| |_| | _ <| |___
6 .\" * \___|\___/|_| \_\_____|
8 .\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
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 http://curl.haxx.se/docs/copyright.html.
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.
18 .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 .\" * KIND, either express or implied.
21 .\" **************************************************************************
23 .TH CURLOPT_READDATA 3 "16 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
25 CURLOPT_READDATA \- custom pointer passed to the read callback
27 #include <curl/curl.h>
29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_READDATA, void *pointer);
31 Data \fIpointer\fP to pass to the file read function. If you use the
32 \fICURLOPT_READFUNCTION(3)\fP option, this is the pointer you'll get as
33 input in the 4th argument to the callback.
35 If you don't specify a read callback but instead rely on the default internal
36 read function, this data must be a valid readable FILE * (cast to 'void *').
38 If you're using libcurl as a win32 DLL, you MUST use a
39 \fICURLOPT_READFUNCTION(3)\fP if you set this option.
41 By default, this is a FILE * to stdin.
43 This is used for all protocols when sending data.
46 CURL *curl = curl_easy_init();
49 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
51 /* pass pointer that gets passed in to the
52 CURLOPT_READFUNCTION callback */
53 curl_easy_setopt(curl, CURLOPT_READDATA, &this);
55 curl_easy_perform(curl);
59 This option was once known by the older name \fICURLOPT_INFILE\fP, the name
60 \fICURLOPT_READDATA\fP was introduced in 7.9.7.
62 This will return CURLE_OK.
64 .BR CURLOPT_READFUNCTION "(3), " CURLOPT_WRITEDATA "(3), "