--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_READDATA.3	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,65 @@
+.\" **************************************************************************
+.\" *                                  _   _ ____  _
+.\" *  Project                     ___| | | |  _ \| |
+.\" *                             / __| | | | |_) | |
+.\" *                            | (__| |_| |  _ <| |___
+.\" *                             \___|\___/|_| \_\_____|
+.\" *
+.\" * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" *
+.\" * This software is licensed as described in the file COPYING, which
+.\" * you should have received as part of this distribution. The terms
+.\" * are also available at https://curl.haxx.se/docs/copyright.html.
+.\" *
+.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+.\" * copies of the Software, and permit persons to whom the Software is
+.\" * furnished to do so, under the terms of the COPYING file.
+.\" *
+.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+.\" * KIND, either express or implied.
+.\" *
+.\" **************************************************************************
+.\"
+.TH CURLOPT_READDATA 3 "16 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
+.SH NAME
+CURLOPT_READDATA \- custom pointer passed to the read callback
+.SH SYNOPSIS
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_READDATA, void *pointer);
+.SH DESCRIPTION
+Data \fIpointer\fP to pass to the file read function. If you use the
+\fICURLOPT_READFUNCTION(3)\fP option, this is the pointer you'll get as
+input in the 4th argument to the callback.
+
+If you don't specify a read callback but instead rely on the default internal
+read function, this data must be a valid readable FILE * (cast to 'void *').
+
+If you're using libcurl as a win32 DLL, you \fBMUST\fP use a
+\fICURLOPT_READFUNCTION(3)\fP if you set this option or you will experience
+crashes.
+.SH DEFAULT
+By default, this is a FILE * to stdin.
+.SH PROTOCOLS
+This is used for all protocols when sending data.
+.SH EXAMPLE
+.nf
+CURL *curl = curl_easy_init();
+struct MyData this;
+if(curl) {
+  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+
+  /* pass pointer that gets passed in to the
+     CURLOPT_READFUNCTION callback */
+  curl_easy_setopt(curl, CURLOPT_READDATA, &this);
+
+  curl_easy_perform(curl);
+}
+.fi
+.SH AVAILABILITY
+This option was once known by the older name CURLOPT_INFILE, the name
+\fICURLOPT_READDATA(3)\fP was introduced in 7.9.7.
+.SH RETURN VALUE
+This will return CURLE_OK.
+.SH "SEE ALSO"
+.BR CURLOPT_READFUNCTION "(3), " CURLOPT_WRITEDATA "(3), "