.\" $Id: libssh2_channel_write_ex.3,v 1.1 2007/02/23 10:20:56 bagder Exp $
.\"
.TH libssh2_channel_write_ex 3 "6 Feb 2007" "libssh2 0.15" "libssh2 manual"
.SH NAME
libssh2_channel_write_ex - write data to a channel stream blocking
.SH SYNOPSIS
#include <libssh2.h>

int libssh2_channel_write_ex(LIBSSH2_CHANNEL *channel, int stream_id,
                             char *buf, size_t buflen);

int libssh2_channel_write(LIBSSH2_CHANNEL *channel, char *buf,
                          size_t buflen);

int libssh2_channel_write_stderr(LIBSSH2_CHANNEL *channel, char *buf,
                                 size_t buflen);
.SH DESCRIPTION
Write data to a channel stream. All channel streams have one standard I/O
substream (stream_id == 0), and may have up to 2^32 extended data streams as
identified by the selected \fIstream_id\fP. The SSH2 protocol currently
defines a stream ID of 1 to be the stderr substream.

\fIchannel\fP - active channel stream to write to. 

\fIstream_id\fP - substream ID number (e.g. 0 or SSH_EXTENDED_DATA_STDERR) 

\fIbuf\fP - pointer to buffer to write

\fIbuflen\fP - size of the data to write

\fIlibssh2_channel_write(3)\fP and \fIlibssh2_channel_write_stderr(3)\fP are
macros.
.SH RETURN VALUE
Actual number of bytes written or negative on failure.
.SH "SEE ALSO"
.BR libssh2_channel_open_session(3)
.BR libssh2_channel_read(3)