curl/docs/libcurl/opts/CURLOPT_SASL_IR.md
Daniel Stenberg eefcc1bda4
docs: introduce "curldown" for libcurl man page format
curldown is this new file format for libcurl man pages. It is markdown
inspired with differences:

- Each file has a set of leading headers with meta-data
- Supports a small subset of markdown
- Uses .md file extensions for editors/IDE/GitHub to treat them nicely
- Generates man pages very similar to the previous ones
- Generates man pages that still convert nicely to HTML on the website
- Detects and highlights mentions of curl symbols automatically (when
  their man page section is specified)

tools:

- cd2nroff: converts from curldown to nroff man page
- nroff2cd: convert an (old) nroff man page to curldown
- cdall: convert many nroff pages to curldown versions
- cd2cd: verifies and updates a curldown to latest curldown

This setup generates .3 versions of all the curldown versions at build time.

CI:

Since the documentation is now technically markdown in the eyes of many
things, the CI runs many more tests and checks on this documentation,
including proselint, link checkers and tests that make sure we capitalize the
first letter after a period...

Closes #12730
2024-01-23 00:29:02 +01:00

73 lines
1.3 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel.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)
---
# 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
IMAP, POP3 and SMTP
# 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
Added in 7.31.0
# RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.