73 lines
1.3 KiB
Markdown
73 lines
1.3 KiB
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_SASL_IR
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_MAIL_AUTH (3)
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- CURLOPT_MAIL_FROM (3)
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- CURLOPT_SASL_AUTHZID (3)
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---
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# NAME
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CURLOPT_SASL_IR - send initial response in first packet
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SASL_IR, long enable);
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~~~
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# DESCRIPTION
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Pass a long. If the value is 1, curl sends the initial response to the server
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in the first authentication packet in order to reduce the number of ping pong
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requests. Only applicable to the following supporting SASL authentication
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mechanisms:
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* Login
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* Plain
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* GSSAPI
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* NTLM
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* OAuth 2.0
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Note: Whilst IMAP supports this option there is no need to explicitly set it,
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as libcurl can determine the feature itself when the server supports the
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SASL-IR CAPABILITY.
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# DEFAULT
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0
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# PROTOCOLS
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IMAP, POP3 and SMTP
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
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curl_easy_setopt(curl, CURLOPT_SASL_IR, 1L);
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.31.0
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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