libssh2_channel_read_ex man page on Archlinux

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libssh2_channel_read_ex(3)	libssh2 manual	    libssh2_channel_read_ex(3)

       libssh2_channel_read_ex - read data from a channel stream

       #include <libssh2.h>

       ssize_t	   libssh2_channel_read_ex(LIBSSH2_CHANNEL    *channel,	   int
       stream_id, char *buf, size_t buflen);

       ssize_t	libssh2_channel_read(LIBSSH2_CHANNEL  *channel,	  char	 *buf,
       size_t buflen);

       ssize_t	 libssh2_channel_read_stderr(LIBSSH2_CHANNEL   *channel,  char
       *buf, size_t buflen);

       Attempt to read data from an active 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 stream_id. The
       SSH2  protocol currently defines a stream ID of 1 to be the stderr sub‐

       channel - active channel stream to read from.

       stream_id - substream ID number (e.g. 0 or SSH_EXTENDED_DATA_STDERR)

       buf - pointer to storage buffer to read data into

       buflen - size of the buf storage

       libssh2_channel_read(3) and libssh2_channel_read_stderr(3) are macros.

       Actual number of bytes read or negative on  failure.  It	 returns  LIB‐
       SSH2_ERROR_EAGAIN   when	  it   would   otherwise   block.  While  LIB‐
       SSH2_ERROR_EAGAIN is a negative number, it isn't really a  failure  per

       Note  that a return value of zero (0) can in fact be a legitimate value
       and only signals that no payload data was read. It is not an error.

       LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.

       LIBSSH2_ERROR_CHANNEL_CLOSED - The channel has been closed.


libssh2 0.15			  1 Jun 2007	    libssh2_channel_read_ex(3)

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