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man pages section 3: Extended Library Functions, Volume 1

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Updated: Wednesday, July 27, 2022
 
 

libssh2_sftp_readdir_ex (3ssh2)

Name

libssh2_sftp_readdir_ex - read directory data from an SFTP handle

Synopsis

#include <libssh2.h>
#include <libssh2_sftp.h>

int
libssh2_sftp_readdir_ex(LIBSSH2_SFTP_HANDLE *handle,
char *buffer, size_t buffer_maxlen,
char *longentry, size_t longentry_maxlen,
LIBSSH2_SFTP_ATTRIBUTES *attrs);

Description

libssh2 manual                                  libssh2_sftp_readdir_ex(3ssh2)



NAME
       libssh2_sftp_readdir_ex - read directory data from an SFTP handle

SYNOPSIS
       #include <libssh2.h>
       #include <libssh2_sftp.h>

       int
       libssh2_sftp_readdir_ex(LIBSSH2_SFTP_HANDLE *handle,
                               char *buffer, size_t buffer_maxlen,
                               char *longentry, size_t longentry_maxlen,
                               LIBSSH2_SFTP_ATTRIBUTES *attrs);

DESCRIPTION
       Reads a block of data from a LIBSSH2_SFTP_HANDLE and returns file entry
       information for the next entry, if any.

       handle - is the SFTP File Handle as returned by libssh2_sftp_open_ex(3)

       buffer - is a pointer to  a  pre-allocated  buffer  of  at  least  buf-
       fer_maxlen bytes to read data into.

       buffer_maxlen  - 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.

       longentry  - is a pointer to a pre-allocated buffer of at least longen-
       try_maxlen bytes to read data into. The format of the `longname'  field
       is  unspecified  by  SFTP  protocol. It MUST be suitable for use in the
       output of a directory listing command (in fact, the recommended  opera-
       tion for a directory listing command is to simply display this data).

       longentry_maxlen  -  is the length of longentry in bytes. If the length
       of the full directory entry is longer than the space provided  by  lon-
       gentry_maxlen it will be truncated to fit.

       attrs  -  is  a  pointer to LIBSSH2_SFTP_ATTRIBUTES storage to populate
       statbuf style data into.

RETURN VALUE
       Number of bytes actually populated into buffer (not counting the termi-
       nating  zero), or negative on failure.  It returns LIBSSH2_ERROR_EAGAIN
       when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative
       number, it isn't really a failure per se.

BUG
       Passing  in a too small buffer for 'buffer' or 'longentry' when receiv-
       ing data only results in libssh2 1.2.7  or  earlier  to  not  copy  the
       entire  data amount, and it is not possible for the application to tell
       when it happens!

ERRORS
       LIBSSH2_ERROR_ALLOC -  An internal memory allocation call failed.

       LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.

       LIBSSH2_ERROR_SOCKET_TIMEOUT -

       LIBSSH2_ERROR_SFTP_PROTOCOL - An invalid  SFTP  protocol  response  was
       received  on the socket, or an SFTP operation caused an errorcode to be
       returned by the server.

       From 1.2.8, LIBSSH2_ERROR_BUFFER_TOO_SMALL is returned if  any  of  the
       given  'buffer'  or  'longentry'  buffers  are  too  small  to  fit the
       requested object name.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | library/libssh2  |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+

SEE ALSO
       libssh2_sftp_open_ex(3), libssh2_sftp_close_handle(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_sftp_readdir_ex(3ssh2)