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libssh2/docs/libssh2_channel_signal_ex.md
Viktor Szakats b889b39945 docs: convert man page sources to "curldown" format
To render in Git webviews as-is, to make it easier to edit, verify,
and to sync up with curl.

- add options to not build the `.3` man pages:
  - autotools: `--disable-docs`
  - cmake: `LIBSSH2_BUILD_DOCS=OFF`
- building `.3` man pages requires Perl after this patch.
- drop `mansyntax` and the shell / `grep` / GNU `man` tool requirements with it.
- scripts and most logic were copied from curl.
- add `cd2nroff` from curl, with edits to relax curl-specific checks.
- used `nroff2cd` (from curl) to convert from `.3` to `.md`. Then
  manually fixed copyrights, inline function references and a couple
  of other things.

Credits-to: Daniel Stenberg

Ref: eefcc1bda4
Ref: https://github.com/curl/curl/pull/12730
Ref: https://github.com/libssh2/www/issues/25#issuecomment-3289431671

Closes #1660
2025-10-09 04:05:38 +02:00

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1.1 KiB
Markdown

---
c: Copyright (C) The libssh2 project and its contributors.
SPDX-License-Identifier: BSD-3-Clause
Title: libssh2_channel_signal_ex
Section: 3
Source: libssh2
See-also:
- libssh2_channel_get_exit_signal(3)
- libssh2_channel_open_ex(3)
---
# NAME
libssh2_channel_signal_ex -- Send a signal to process previously opened on channel.
# SYNOPSIS
~~~c
#include <libssh2.h>
int
libssh2_channel_signal_ex(LIBSSH2_CHANNEL *channel,
const char *signame,
size_t signame_len)
~~~
# DESCRIPTION
A signal can be delivered to the remote process/service. Some servers or
systems may not implement signals, in which case they will probably ignore this
message.
*channel* - Previously opened channel instance such as returned by libssh2_channel_open_ex(3).
*signame* - The signal name is the same as the signal name constant, without the leading "SIG".
*signame_len* - Length of passed signal name parameter.
There is also a macro *libssh2_channel_signal(channel, signame)* that supplies the strlen of the signame.
# RETURN VALUE
Normal channel error codes.
LIBSSH2_ERROR_EAGAIN when it would block.