Document libssh2_sftp_readdir() and libssh2_sftp_readdirnb()

docs/libssh2_sftp_readdirnb.3

@@ -0,0 +1,39 @@
+.\" $Id: libssh2_sftp_readdirnb.3,v 1.1 2007/04/21 18:07:17 jehousley Exp $
+.\"
+.TH libssh2_sftp_readdir 3 "16 Apr 2007" "libssh2 0.15" "libssh2 manual"
+.SH NAME
+libssh2_sftp_readnb - read data from an SFTP handle non-blocking
+.SH SYNOPSIS
+#include <libssh2.h>
+
+int libssh2_sftp_readdirnb(LIBSSH2_SFTP_HANDLE *handle, char *buffer, 
+                         size_t buffer_maxlen, LIBSSH2_SFTP_ATTRIBUTES *attrs);
+
+.SH DESCRIPTION
+Read a block of data from a LIBSSH2_SFTP_HANDLE non-blocking. This method is 
+modeled after the POSIX \fIreaddir(3)\fP however, it uses a variable sized 
+directory entry (filename) buffer and returns statbuf type data in the same 
+call.
+
+\fIhandle\fP is the SFTP File Handle as returned by 
+\fIlibssh2_sftp_diropen(3)\fP.
+
+\fIbuffer\fP is a pointer to a pre-allocated buffer of at least
+\fIbuffer_maxlen\fP bytes to read data into.
+
+\fIbuffer_maxlen\fP is the length of buffer in bytes. If the length of the 
+filename is longer than the space provided by buffer_maxlen it will be 
+truncated to fit.
+
+\fIattrs\fP is a pointer to LIBSSH2_SFTP_ATTRIBUTES storage to populate 
+statbuf style data into.
+
+.SH RETURN VALUE
+Number of bytes actually populated into buffer, or negative on failure.  It
+returns LIBSSH2CHANNEL_EAGAIN when it would otherwise block. While
+LIBSSH2CHANNEL_EAGAIN is a negative number, it isn't really a failure per se.
+
+
+.SH "SEE ALSO"
+.BR libssh2_sftp_opendir(3)
+.BR libssh2_sftp_readdirnb(3)