SFtpDir C Reference Documentation

SFtpDir

Current Version: 11.5.0

Chilkat.SFtpDir

Inspect, sort, and iterate an SFTP directory listing.

Chilkat.SFtpDir represents a directory listing returned by an SFTP operation. It provides the original path used to fetch the listing, the number of files and subdirectories found, methods for retrieving filenames or full SFtpFile entry details by index, sorting support, and a way to load a completed asynchronous directory-listing result.

Directory listing object

Holds the files and subdirectories returned from an SFTP directory-read operation.

Original path tracking

Use OriginalPath to see the remote path that was requested when the directory listing was created.

Entry count

Read NumFilesAndDirs to determine how many directory entries are available for iteration.

Filename access

Use GetFilename to retrieve the name of an entry by zero-based index.

Full entry details

Use FileAt to populate an SFtpFile object with metadata for a selected file or subdirectory.

Sorting and async results

Sort entries by filename, timestamps, or size, and load directory listings returned from completed async tasks.

Common pattern: Use a Chilkat.SFtp object to open or read a remote directory, then use the returned SFtpDir object to inspect NumFilesAndDirs, optionally call Sort, and loop from index 0 through the final entry. Use GetFilename when only names are needed, or FileAt when the application needs the full SFtpFile metadata for each entry.

Create/Dispose

HCkSFtpDir instance = CkSFtpDir_Create();
// ...
CkSFtpDir_Dispose(instance);
HCkSFtpDir CkSFtpDir_Create(void);

Creates an instance of the HCkSFtpDir object and returns a handle ("void *" pointer). The handle is passed in the 1st argument for the functions listed on this page.

void CkSFtpDir_Dispose(HCkSFtpDir handle);

Objects created by calling CkSFtpDir_Create must be freed by calling this method. A memory leak occurs if a handle is not disposed by calling this function. Also, any handle returned by a Chilkat "C" function must also be freed by the application by calling the appropriate Dispose method, such as CkSFtpDir_Dispose.

Properties

DebugLogFilePath
void CkSFtpDir_getDebugLogFilePath(HCkSFtpDir cHandle, HCkString retval);
void CkSFtpDir_putDebugLogFilePath(HCkSFtpDir cHandle, const char *newVal);
const char *CkSFtpDir_debugLogFilePath(HCkSFtpDir cHandle);

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

  • A timeout property set to 0, indicating an infinite timeout.
  • A hang occurring within an event callback in the application code.
  • An internal bug in the Chilkat code causing the hang.

More Information and Examples
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LastErrorHtml
void CkSFtpDir_getLastErrorHtml(HCkSFtpDir cHandle, HCkString retval);
const char *CkSFtpDir_lastErrorHtml(HCkSFtpDir cHandle);

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorText
void CkSFtpDir_getLastErrorText(HCkSFtpDir cHandle, HCkString retval);
const char *CkSFtpDir_lastErrorText(HCkSFtpDir cHandle);

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorXml
void CkSFtpDir_getLastErrorXml(HCkSFtpDir cHandle, HCkString retval);
const char *CkSFtpDir_lastErrorXml(HCkSFtpDir cHandle);

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastMethodSuccess
BOOL CkSFtpDir_getLastMethodSuccess(HCkSFtpDir cHandle);
void CkSFtpDir_putLastMethodSuccess(HCkSFtpDir cHandle, BOOL newVal);

Indicates the success or failure of the most recent method call: TRUE means success, FALSE means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages. Note: This property does not apply to methods that return integer values or to boolean-returning methods where the boolean does not indicate success or failure.

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NumFilesAndDirs
int CkSFtpDir_getNumFilesAndDirs(HCkSFtpDir cHandle);

Returns the number of entries in this directory listing.

The count includes every item returned by the server, such as regular files, directories, symbolic links, and special entries. Valid zero-based indexes range from 0 through NumFilesAndDirs - 1.

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OriginalPath
void CkSFtpDir_getOriginalPath(HCkSFtpDir cHandle, HCkString retval);
const char *CkSFtpDir_originalPath(HCkSFtpDir cHandle);

Returns the original remote path used to create this directory listing.

This is the same path string that was supplied to the SFTP directory-open operation. It identifies the requested directory and is retained with the listing for later reference.

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Utf8
BOOL CkSFtpDir_getUtf8(HCkSFtpDir cHandle);
void CkSFtpDir_putUtf8(HCkSFtpDir cHandle, BOOL newVal);

When set to TRUE, all const char * arguments and return values are interpreted as UTF-8 strings. When set to FALSE, they are interpreted as ANSI strings.

In Chilkat v11.0.0 and later, the default value is TRUE. Before v11.0.0, it was FALSE.

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VerboseLogging
BOOL CkSFtpDir_getVerboseLogging(HCkSFtpDir cHandle);
void CkSFtpDir_putVerboseLogging(HCkSFtpDir cHandle, BOOL newVal);

If set to TRUE, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is FALSE. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
void CkSFtpDir_getVersion(HCkSFtpDir cHandle, HCkString retval);
const char *CkSFtpDir_version(HCkSFtpDir cHandle);

Version of the component/library, such as "10.1.0"

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Methods

FileAt
BOOL CkSFtpDir_FileAt(HCkSFtpDir cHandle, int index, HCkSFtpFile fileObj);
Introduced in version 11.0.0

Copies the metadata for the directory entry at the zero-based index into fileObj.

The first entry is at index 0. Use NumFilesAndDirs to determine the number of available entries.

The populated SFtpFile object provides the entry name, type, size, timestamps, ownership, permissions, and any additional attributes supplied by the SFTP server.

Use GetFilename when only the entry name is needed.

Returns TRUE for success, FALSE for failure.

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GetFilename
BOOL CkSFtpDir_GetFilename(HCkSFtpDir cHandle, int index, HCkString outStr);
const char *CkSFtpDir_getFilename(HCkSFtpDir cHandle, int index);

Returns the filename of the directory entry at the zero-based index.

The first entry is at index 0. Use NumFilesAndDirs to determine the number of available entries.

Use FileAt when the application needs the full SFtpFile metadata rather than only the entry name.

Returns TRUE for success, FALSE for failure.

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LoadTaskResult
BOOL CkSFtpDir_LoadTaskResult(HCkSFtpDir cHandle, HCkTask task);
Introduced in version 9.5.0.52

Loads this SFtpDir object from the result of a completed asynchronous Task.

The task must represent an asynchronous SFTP operation whose result is a directory listing. Call this method after the task has finished to transfer the listing data into the current object.

Returns TRUE for success, FALSE for failure.

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Sort
void CkSFtpDir_Sort(HCkSFtpDir cHandle, const char *field, BOOL ascending);
Introduced in version 9.5.0.79

Reorders the files and subdirectories in this listing according to field.

Set ascending to TRUE for ascending order or FALSE for descending order. The new order is used by index-based methods such as GetFilename and FileAt.

field Sort key
filename Filename using the normal case-sensitive comparison.
filenameNoCase Filename using a case-insensitive comparison.
lastModifiedTime Last-modified date and time.
lastAccessTime Last-access date and time.
lastCreateTime Creation date and time.
size Entry size in bytes.
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Deprecated

GetFileObject
HCkSFtpFile CkSFtpDir_GetFileObject(HCkSFtpDir cHandle, int index);
This method is deprecated and replaced by FileAt

Deprecated: Use FileAt instead.

Returns an SFtpFile object containing the metadata for the directory entry at the zero-based index.

The first entry is at index 0. Use NumFilesAndDirs to determine the number of available entries.

Returns NULL on failure

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