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);
libssh2 manual libssh2_channel_read_ex(3ssh2) NAME libssh2_channel_read_ex - read data from a channel stream SYNOPSIS #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); DESCRIPTION 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- stream. 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. RETURN VALUE 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 se. 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. ERRORS LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket. LIBSSH2_ERROR_CHANNEL_CLOSED - The channel has been closed. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | library/libssh2 | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO libssh2_poll_channel_read(3) NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://www.libssh2.org/download/lib- ssh2-1.10.0.tar.gz. Further information about this software can be found on the open source community website at https://www.libssh2.org/. libssh2 0.15 1 Jun 2007 libssh2_channel_read_ex(3ssh2)