libssh2_scp_recv2 man page
libssh2_scp_recv2 — request a remote file via SCP
LIBSSH2_CHANNEL * libssh2_scp_recv2(LIBSSH2_SESSION *session, const char *path, struct_stat *sb);
session - Session instance as returned by libssh2_session_init_ex(3)
path - Full path and filename of file to transfer. That is the remote file name.
sb - Populated with remote file's size, mode, mtime, and atime
Request a file from the remote host via SCP.
Pointer to a newly allocated LIBSSH2_CHANNEL instance, or NULL on errors.
LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed.
LIBSSH2_ERROR_EAGAIN - Marked for non-blocking I/O but the call would block.