curl/docs/libcurl/opts/CURLOPT_RTSP_SESSION_ID.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

68 lines
1.4 KiB
Markdown

---
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_RTSP_SESSION_ID
Section: 3
Source: libcurl
See-also:
- CURLOPT_RTSP_REQUEST (3)
- CURLOPT_RTSP_STREAM_URI (3)
---
# NAME
CURLOPT_RTSP_SESSION_ID - RTSP session ID
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RTSP_SESSION_ID, char *id);
~~~
# DESCRIPTION
Pass a char pointer as a parameter to set the value of the current RTSP
Session ID for the handle. Useful for resuming an in-progress session. Once
this value is set to any non-NULL value, libcurl returns
*CURLE_RTSP_SESSION_ERROR* if ID received from the server does not match. If
unset (or set to NULL), libcurl automatically sets the ID the first time the
server sets it in a response.
The application does not have to keep the string around after setting this
option.
# DEFAULT
NULL
# PROTOCOLS
RTSP
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
char *prev_id; /* saved from before somehow */
curl_easy_setopt(curl, CURLOPT_URL, "rtsp://example.com/");
curl_easy_setopt(curl, CURLOPT_RTSP_SESSION_ID, prev_id);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
~~~
# AVAILABILITY
Added in 7.20.0
# RETURN VALUE
Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.