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libssh2/docs/libssh2_channel_signal_ex.3
Keith Dart a4544c0117
channel: add support for "signal" message
Can send specific signals to remote process. Allows for slightly
improved remote process management, if the server supports it.

Integration-patches-by: Viktor Szakats

* doc updates
* change `signame_len` to `size_t`
* variable scopes
* fix checksrc warnings

Closes #672
Closes #991
2023-04-20 21:51:29 +00:00

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Groff

.TH libssh2_channel_signal_ex 3 "20 Apr 2023" "libssh2 1.11.0" "libssh2 manual"
.SH NAME
libssh2_channel_signal_ex -- Send a signal to process previously opened on channel.
.SH SYNOPSIS
.nf
#include <libssh2.h>
int
libssh2_channel_signal_ex(LIBSSH2_CHANNEL *channel,
const char *signame,
size_t signame_len)
.fi
.SH 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.
\fIchannel\fP - Previously opened channel instance such as returned by
.BR libssh2_channel_open_ex(3)
\fIsigname\fP - The signal name is the same as the signal name constant, without the leading "SIG".
\fIsigname_len\fP - Length of passed signal name parameter.
There is also a macro \fIlibssh2_channel_signal(channel, signame)\fP that supplies the strlen of the signame.
.SH RETURN VALUE
Normal channel error codes.
LIBSSH2_ERROR_EAGAIN when it would block.
.SH SEE ALSO
.BR libssh2_channel_get_exit_signal(3)