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75 lines
2.2 KiB
Groff
75 lines
2.2 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_MIME_OPTIONS.md
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.TH CURLOPT_MIME_OPTIONS 3 "2024-06-01" libcurl
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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 filenames 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 one 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 filename \fIstrangename"kind\fP. When the
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containing multipart form is sent, this is normally transmitted as
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\fIstrangename%22kind\fP. When this option is set, it is sent as
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\fIstrangename"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 and SMTP
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.SH EXAMPLE
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.nf
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int main(void)
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{
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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(form);
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}
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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_HTTPPOST (3),
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.BR CURLOPT_MIMEPOST (3)
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