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69 lines
2.7 KiB
Groff
69 lines
2.7 KiB
Groff
.\" Copyright (C) The libssh2 project and its contributors.
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.\" SPDX-License-Identifier: BSD-3-Clause
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.TH libssh2_sftp_readdir_ex 3 "1 Jun 2007" "libssh2 0.15" "libssh2"
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.SH NAME
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libssh2_sftp_readdir_ex - read directory data from an SFTP handle
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.SH SYNOPSIS
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.nf
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#include <libssh2.h>
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#include <libssh2_sftp.h>
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int
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libssh2_sftp_readdir_ex(LIBSSH2_SFTP_HANDLE *handle,
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char *buffer, size_t buffer_maxlen,
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char *longentry, size_t longentry_maxlen,
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LIBSSH2_SFTP_ATTRIBUTES *attrs);
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.fi
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.SH DESCRIPTION
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Reads a block of data from a LIBSSH2_SFTP_HANDLE and returns file entry
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information for the next entry, if any.
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\fIhandle\fP - is the SFTP File Handle as returned by
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.BR libssh2_sftp_open_ex(3)
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\fIbuffer\fP - is a pointer to a pre-allocated buffer of at least
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\fIbuffer_maxlen\fP bytes to read data into.
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\fIbuffer_maxlen\fP - is the length of buffer in bytes. If the length of the
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filename is longer than the space provided by buffer_maxlen it will be
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truncated to fit.
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\fIlongentry\fP - is a pointer to a pre-allocated buffer of at least
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\fIlongentry_maxlen\fP bytes to read data into. The format of the `longname'
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field is unspecified by SFTP protocol. It MUST be suitable for use in the
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output of a directory listing command (in fact, the recommended operation for
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a directory listing command is to display this data).
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\fIlongentry_maxlen\fP - is the length of longentry in bytes. If the length of
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the full directory entry is longer than the space provided by
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\fIlongentry_maxlen\fP it will be truncated to fit.
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\fIattrs\fP - is a pointer to LIBSSH2_SFTP_ATTRIBUTES storage to populate
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statbuf style data into.
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.SH RETURN VALUE
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Number of bytes actually populated into buffer (not counting the terminating
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zero), or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would
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otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it is not
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really a failure per se.
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.SH BUG
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Passing in a too small buffer for 'buffer' or 'longentry' when receiving data
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only results in libssh2 1.2.7 or earlier to not copy the entire data amount,
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and it is not possible for the application to tell when it happens!
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.SH ERRORS
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\fILIBSSH2_ERROR_ALLOC\fP - An internal memory allocation call failed.
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\fILIBSSH2_ERROR_SOCKET_SEND\fP - Unable to send data on socket.
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\fILIBSSH2_ERROR_SOCKET_TIMEOUT\fP -
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\fILIBSSH2_ERROR_SFTP_PROTOCOL\fP - An invalid SFTP protocol response was
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received on the socket, or an SFTP operation caused an errorcode to be
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returned by the server.
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From 1.2.8, LIBSSH2_ERROR_BUFFER_TOO_SMALL is returned if any of the
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given 'buffer' or 'longentry' buffers are too small to fit the requested
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object name.
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.SH SEE ALSO
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.BR libssh2_sftp_open_ex(3),
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.BR libssh2_sftp_close_handle(3)
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