64 lines
2.1 KiB
Groff
64 lines
2.1 KiB
Groff
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" * SPDX-License-Identifier: curl
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_SEEKDATA 3 "16 Jun 2014" libcurl libcurl
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.SH NAME
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CURLOPT_SEEKDATA \- pointer passed to the seek callback
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SEEKDATA, void *pointer);
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.fi
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.SH DESCRIPTION
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Data \fIpointer\fP to pass to the seek callback function. If you use the
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\fICURLOPT_SEEKFUNCTION(3)\fP option, this is the pointer you get as input.
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.SH DEFAULT
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If you do not set this, NULL is passed to the callback.
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.SH PROTOCOLS
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HTTP, FTP, SFTP
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.SH EXAMPLE
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.nf
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static int seek_cb(void *clientp, curl_off_t offset, int origin)
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{
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struct data *d = (struct data *)clientp;
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lseek(d->our_fd, offset, origin);
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return CURL_SEEKFUNC_OK;
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}
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{
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struct data seek_data;
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curl_easy_setopt(CURL *handle, CURLOPT_SEEKFUNCTION, seek_cb);
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curl_easy_setopt(CURL *handle, CURLOPT_SEEKDATA, &seek_data);
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}
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.fi
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.SH AVAILABILITY
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Added in 7.18.0
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.SH RETURN VALUE
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.SH "SEE ALSO"
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.BR CURLOPT_DEBUGFUNCTION (3),
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.BR CURLOPT_IOCTLFUNCTION (3),
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.BR CURLOPT_SEEKFUNCTION (3),
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.BR CURLOPT_STDERR (3)
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