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93 строки
3.2 KiB
Groff
93 строки
3.2 KiB
Groff
.\" **************************************************************************
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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) 1998 - 2021, 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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.\" **************************************************************************
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.\"
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.TH CURLOPT_MIME_OPTIONS 3 "November 26, 2021" "libcurl 7.83.1" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_MIME_OPTIONS \- set MIME option flags
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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_MIME_OPTIONS, long options);
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.fi
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.SH DESCRIPTION
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Pass a long that holds a bitmask of CURLMIMEOPT_* defines. Each bit is a
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Boolean flag used while encoding a MIME tree or multipart form data.
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Available bits are:
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.IP CURLMIMEOPT_FORMESCAPE
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Tells libcurl to escape multipart form field and file names using the
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backslash-escaping algorithm rather than percent-encoding (HTTP only).
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Backslash-escaping consists in preceding backslashes and double quotes with
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a backslash. Percent encoding maps all occurrences of double quote,
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carriage return and line feed to %22, %0D and %0A respectively.
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Before version 7.81.0, percent-encoding was never applied.
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HTTP browsers used to do backslash-escaping in the past but have over time
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transitioned to use percent-encoding. This option allows to address
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server-side applications that have not yet have been converted.
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As an example, consider field or file name \fIstrange\\name"kind\fP.
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When the containing multipart form is sent, this is normally transmitted as
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\fIstrange\\name%22kind\fP. When this option is set, it is sent as
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\fIstrange\\\\name\\"kind\fP.
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.SH DEFAULT
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0, meaning disabled.
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.SH PROTOCOLS
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HTTP, IMAP, SMTP
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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curl_mime *form = NULL;
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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curl_easy_setopt(curl, CURLOPT_MIME_OPTIONS, CURLMIMEOPT_FORMESCAPE);
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form = curl_mime_init(curl);
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if(form) {
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curl_mimepart *part = curl_mime_addpart(form);
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if(part) {
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curl_mime_filedata(part, "strange\\\\file\\\\name");
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curl_mime_name(part, "strange\\"field\\"name");
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curl_easy_setopt(curl, CURLOPT_MIMEPOST, form);
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/* Perform the request */
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curl_easy_perform(curl);
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}
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}
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curl_easy_cleanup(curl);
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curl_mime_free(mime);
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}
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.fi
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.SH AVAILABILITY
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Option added in 7.81.0.
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.SH RETURN VALUE
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Returns CURLE_OK
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.SH "SEE ALSO"
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.BR CURLOPT_MIMEPOST "(3), " CURLOPT_HTTPPOST "(3)"
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