Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_IOCTLDATA.3 @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 .\" **************************************************************************
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2 .\" * _ _ ____ _
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3 .\" * Project ___| | | | _ \| |
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4 .\" * / __| | | | |_) | |
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5 .\" * | (__| |_| | _ <| |___
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6 .\" * \___|\___/|_| \_\_____|
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7 .\" *
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8 .\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 .\" *
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10 .\" * This software is licensed as described in the file COPYING, which
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11 .\" * you should have received as part of this distribution. The terms
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12 .\" * are also available at https://curl.haxx.se/docs/copyright.html.
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13 .\" *
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14 .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 .\" * copies of the Software, and permit persons to whom the Software is
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16 .\" * furnished to do so, under the terms of the COPYING file.
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17 .\" *
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18 .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 .\" * KIND, either express or implied.
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20 .\" *
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21 .\" **************************************************************************
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22 .\"
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23 .TH CURLOPT_IOCTLDATA 3 "16 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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24 .SH NAME
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25 CURLOPT_IOCTLDATA \- custom pointer passed to I/O callback
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26 .SH SYNOPSIS
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27 #include <curl/curl.h>
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28
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29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IOCTLDATA, void *pointer);
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30 .SH DESCRIPTION
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31 Pass the \fIpointer\fP that will be untouched by libcurl and passed as the 3rd
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32 argument in the ioctl callback set with \fICURLOPT_IOCTLFUNCTION(3)\fP.
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33 .SH DEFAULT
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34 By default, the value of this parameter is NULL.
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35 .SH PROTOCOLS
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36 Used with HTTP
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37 .SH EXAMPLE
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38 .nf
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39 static curlioerr ioctl_callback(CURL *handle, int cmd, void *clientp)
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40 {
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41 struct data *io = (struct data *)clientp;
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42 if(cmd == CURLIOCMD_RESTARTREAD) {
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43 lseek(fd, 0, SEEK_SET);
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44 current_offset = 0;
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45 return CURLIOE_OK;
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46 }
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47 return CURLIOE_UNKNOWNCMD;
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48 }
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49 {
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50 struct data ioctl_data;
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51 curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, ioctl_callback);
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52 curl_easy_setopt(curl, CURLOPT_IOCTLDATA, &ioctl_data);
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53 }
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54 .fi
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55 .SH AVAILABILITY
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56 Added in 7.12.3
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57 .SH RETURN VALUE
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58 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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59 .SH "SEE ALSO"
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60 .BR CURLOPT_IOCTLFUNCTION "(3), " CURLOPT_SEEKFUNCTION "(3), "