curl/docs/libcurl/opts/CURLOPT_SASL_IR.md
Daniel Stenberg 5a488251f7
curldown: fixups
- make DEFAULT sections less repetitive

- make historic mentions use HISTORY

- generate the protocols section on `# %PROTOCOLS%` instead of guessing
  where to put it

- generate the availability section on `# %AVAILABILITY%` instead of
  guessing where to put it

- make the protocols section more verbose

Closes #14227
2024-07-19 17:03:25 +02:00

73 lines
1.3 KiB
Markdown

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