NNTP Control
Properties Methods Events Config Settings Errors
The NNTP Control is used to read, search, and post articles on Usenet news servers.
Syntax
NNTP
Remarks
The NNTP Control supports both plaintext and SSL/TLS connections. When connecting over SSL/TLS the SSLServerAuthentication event allows you to check the server identity and other security attributes. The SSLStatus event provides information about the SSL handshake. Additional SSL related settings are also supported via the Config method.
The NNTP Control implements a standard Usenet news reader as specified in RFC 977. It can be used to browse Usenet news groups and to read and post articles.
The CurrentGroup property sets the current newsgroup. From then on, news articles from that group can be read by setting the article number in CurrentArticle and then calling the appropriate method. Properties, such as ArticleCount, FirstArticle, and LastArticle, provide information about the current state.
The headers and text of the articles are received through the Header and Transfer events, respectively. Additionally, up to MaxLines from the article body are provided in the ArticleText property. The GroupOverview event returns information about a range of articles (OverviewRange) in CurrentGroup, and the GroupList event is used when listing newsgroup names. The PITrail event provides a trace of the interaction with the server.
The control supports posting of articles through the ArticleText and AttachedFile properties. The article text is specified in one or both of the above, and then the PostArticle method is called. Article headers are given in a series of properties, such as ArticleFrom, ArticleSubject, and Organization, that map directly to the Usenet article header with the same name.
Property List
The following is the full list of the properties of the control with short descriptions. Click on the links for further details.
| ArticleCount | This property includes the estimated number of articles in CurrentGroup . |
| ArticleDate | This property includes the date of the current article. |
| ArticleFrom | This property includes the email address of the author (for posting articles). |
| ArticleHeaders | This property includes the full headers of the article as retrieved from the server. |
| ArticleId | This property includes the message identifier of the current article. |
| GroupOverviewCount | The number of records in the GroupOverview arrays. |
| GroupOverviewArticleLines | This is the number of lines of an article in a newsgroup overview. |
| GroupOverviewArticleNumber | This is the number of an article in a newsgroup overview. |
| GroupOverviewArticleSize | This is the size of an article in a newsgroup overview. |
| GroupOverviewDate | This is the date of an article in a newsgroup overview. |
| GroupOverviewFrom | This is the sender of an article in a newsgroup overview. |
| GroupOverviewMessageId | This is the unique message Id of an article in a newsgroup overview. |
| GroupOverviewOtherHeaders | This is the remaining headers of an article in a newsgroup overview. |
| GroupOverviewReferences | This is the references of an article in a newsgroup overview. |
| GroupOverviewSubject | This is the subject of an article in a newsgroup overview. |
| ArticleReferences | This property includes articles to which the posted article follows up. |
| ArticleReplyTo | This property includes the address to reply to (for posting articles). |
| ArticleSubject | This property includes the article subject (for posted articles). |
| ArticleText | This property includes the full text of the article (without the headers). |
| AttachedFile | This property includes a filename for which the contents will be appended to the ArticleText when posting articles. |
| CheckDate | This property includes the date (format YYMMDD HHMMSS) to check for the creation of new groups. If the group was created after the date specified, it is considered new. |
| Command | This property is used to send additional commands directly to the server. |
| Connected | This shows whether the control is connected. |
| CurrentArticle | This property includes the number or message identifier of the current article. |
| CurrentGroup | This property includes the name of the current group. |
| FirewallAutoDetect | This property tells the control whether or not to automatically detect and use firewall system settings, if available. |
| FirewallType | This property determines the type of firewall to connect through. |
| FirewallHost | This property contains the name or IP address of firewall (optional). |
| FirewallPassword | This property contains a password if authentication is to be used when connecting through the firewall. |
| FirewallPort | This property contains the transmission control protocol (TCP) port for the firewall Host . |
| FirewallUser | This property contains a user name if authentication is to be used connecting through a firewall. |
| FirstArticle | This property includes the number of the first article in CurrentGroup . |
| GroupListCount | The number of records in the GroupList arrays. |
| GroupListCanPost | This property indicates whether a group in a newsgroup listing allows postings or articles. |
| GroupListFirstArticle | This property shows the first available article in a newsgroup listing. |
| GroupListGroup | This property shows the group name in a newsgroup listing. |
| GroupListLastArticle | This property shows the last available article in a newsgroup listing. |
| Idle | The current status of the control. |
| LastArticle | This property includes the number of the last article in CurrentGroup . |
| LastReply | The last reply from the server. |
| LocalFile | This property includes the path to a local file to download the article body. If the file exists, it is overwritten (optional). |
| LocalHost | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
| MaxLines | This property includes the maximum number of message lines aside from headers to retrieve. |
| Newsgroups | This property includes a comma-separated list of newsgroups in which to post the article. |
| NewsPort | This property includes the server port for the secure Network News Transfer Protocol (NNTP) (default 119). |
| NewsServer | This property includes the name or address of a news server. |
| Organization | This property includes the organization of the author (for posting articles). |
| OtherHeaders | This property includes an RFC 850-compliant string consisting of extra headers (for posting articles). |
| OverviewRange | This property includes the range for the GroupOverview method (first-last). |
| ParsedHeaderCount | The number of records in the ParsedHeader arrays. |
| ParsedHeaderField | This property contains the name of the HTTP header (this is the same case as it is delivered). |
| ParsedHeaderValue | This property contains the header contents. |
| Password | This property includes the logon password for the NewsServer . |
| SearchHeader | This property includes a header for the GroupSearch method. |
| SearchPattern | This property includes a search pattern for the GroupSearch method. |
| SearchRange | This property includes the range for the GroupSearch method (first-last). |
| SSLAcceptServerCertEncoded | This is the certificate (PEM/base64 encoded). |
| SSLCertEncoded | This is the certificate (PEM/base64 encoded). |
| SSLCertStore | This is the name of the certificate store for the client certificate. |
| SSLCertStorePassword | If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. |
| SSLCertStoreType | This is the type of certificate store for this certificate. |
| SSLCertSubject | This is the subject of the certificate used for client authentication. |
| SSLEnabled | Whether TLS/SSL is enabled. |
| SSLProvider | This specifies the SSL/TLS implementation to use. |
| SSLServerCertEncoded | This is the certificate (PEM/base64 encoded). |
| SSLStartMode | Determines how the control starts the SSL negotiation. |
| Timeout | A timeout for the control. |
| User | This property includes a user identifier to login as in the NewsServer . |
Method List
The following is the full list of the methods of the control with short descriptions. Click on the links for further details.
| ChangeCurrentGroup | This method changes the current group. |
| Config | Sets or retrieves a configuration setting. |
| Connect | This method connects to the news server. |
| Disconnect | This method disconnects from the news server. |
| DoEvents | Processes events from the internal message queue. |
| FetchArticle | This method gets the headers and body of an article specified in CurrentArticle . |
| FetchArticleBody | This method gets only the body of an article specified in CurrentArticle . |
| FetchArticleHeaders | This method gets only the headers of an article specified in CurrentArticle . |
| GroupOverview | This method receives an overview for the articles in range OverviewRange in the CurrentGroup . |
| GroupSearch | This method receives an overview for the articles in the range SearchRange in the CurrentGroup . |
| Interrupt | Interrupt the current method. |
| ListGroups | This method lists all newsgroups on the server. |
| ListNewGroups | This method lists all newgroups on the server. |
| LocalizeDate | This method converts a valid RFC 822 message date to a local date and time. |
| PostArticle | This method posts the current article and attached file. |
| Reset | This method resets the control. |
| ResetHeaders | This method resets all of the article headers. |
| SendCommand | Sends the exact command directly to the server. |
Event List
The following is the full list of the events fired by the control with short descriptions. Click on the links for further details.
| ConnectionStatus | This event is fired to indicate changes in the connection state. |
| EndTransfer | This event is fired when the article text completes transferring. |
| Error | Information about errors during data delivery. |
| GroupList | This event is fired while group data transfers (during group listings). |
| GroupOverview | This event is fired for each line of article overview data (during group overviews). |
| GroupSearch | This event is fired for each line of group search data (during group searches). |
| Header | This event is fired for every article header being retrieved during article retrieval. |
| PITrail | This event traces the commands sent to the news server, and the respective replies. |
| SSLServerAuthentication | Fired after the server presents its certificate to the client. |
| SSLStatus | Shows the progress of the secure connection. |
| StartTransfer | This event is fired when the article text starts transferring. |
| Transfer | This event is fired while the article text gets transferred (to or from the NewsServer ). |
Config Settings
The following is a list of config settings for the control with short descriptions. Click on the links for further details.
| ArticleInfoLimit | Instructs control to save the amount of articles specified that are returned by the server when a GroupOverview event is fired. |
| GroupInfoLimit | Instructs control to save the amount of group info objects specified that are returned by the server after a ListGroups call has been made. |
| MaxHeaderLength | Maximum length for headers to avoid line folding (default 80). |
| ConnectionTimeout | Sets a separate timeout value for establishing a connection. |
| FirewallAutoDetect | Tells the control whether or not to automatically detect and use firewall system settings, if available. |
| FirewallHost | Name or IP address of firewall (optional). |
| FirewallPassword | Password to be used if authentication is to be used when connecting through the firewall. |
| FirewallPort | The TCP port for the FirewallHost;. |
| FirewallType | Determines the type of firewall to connect through. |
| FirewallUser | A user name if authentication is to be used connecting through a firewall. |
| KeepAliveInterval | The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received. |
| KeepAliveTime | The inactivity time in milliseconds before a TCP keep-alive packet is sent. |
| Linger | When set to True, connections are terminated gracefully. |
| LingerTime | Time in seconds to have the connection linger. |
| LocalHost | The name of the local host through which connections are initiated or accepted. |
| LocalPort | The port in the local host where the control binds. |
| MaxLineLength | The maximum amount of data to accumulate when no EOL is found. |
| MaxTransferRate | The transfer rate limit in bytes per second. |
| ProxyExceptionsList | A semicolon separated list of hosts and IPs to bypass when using a proxy. |
| TCPKeepAlive | Determines whether or not the keep alive socket option is enabled. |
| TcpNoDelay | Whether or not to delay when sending packets. |
| UseIPv6 | Whether to use IPv6. |
| LogSSLPackets | Controls whether SSL packets are logged when using the internal security API. |
| OpenSSLCADir | The path to a directory containing CA certificates. |
| OpenSSLCAFile | Name of the file containing the list of CA's trusted by your application. |
| OpenSSLCipherList | A string that controls the ciphers to be used by SSL. |
| OpenSSLPrngSeedData | The data to seed the pseudo random number generator (PRNG). |
| ReuseSSLSession | Determines if the SSL session is reused. |
| SSLCACerts | A newline separated list of CA certificate to use during SSL client authentication. |
| SSLCheckCRL | Whether to check the Certificate Revocation List for the server certificate. |
| SSLCheckOCSP | Whether to use OCSP to check the status of the server certificate. |
| SSLCipherStrength | The minimum cipher strength used for bulk encryption. |
| SSLEnabledCipherSuites | The cipher suite to be used in an SSL negotiation. |
| SSLEnabledProtocols | Used to enable/disable the supported security protocols. |
| SSLEnableRenegotiation | Whether the renegotiation_info SSL extension is supported. |
| SSLIncludeCertChain | Whether the entire certificate chain is included in the SSLServerAuthentication event. |
| SSLKeyLogFile | The location of a file where per-session secrets are written for debugging purposes. |
| SSLNegotiatedCipher | Returns the negotiated cipher suite. |
| SSLNegotiatedCipherStrength | Returns the negotiated cipher suite strength. |
| SSLNegotiatedCipherSuite | Returns the negotiated cipher suite. |
| SSLNegotiatedKeyExchange | Returns the negotiated key exchange algorithm. |
| SSLNegotiatedKeyExchangeStrength | Returns the negotiated key exchange algorithm strength. |
| SSLNegotiatedVersion | Returns the negotiated protocol version. |
| SSLSecurityFlags | Flags that control certificate verification. |
| SSLServerCACerts | A newline separated list of CA certificate to use during SSL server certificate validation. |
| TLS12SignatureAlgorithms | Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal. |
| TLS12SupportedGroups | The supported groups for ECC. |
| TLS13KeyShareGroups | The groups for which to pregenerate key shares. |
| TLS13SignatureAlgorithms | The allowed certificate signature algorithms. |
| TLS13SupportedGroups | The supported groups for (EC)DHE key exchange. |
| AbsoluteTimeout | Determines whether timeouts are inactivity timeouts or absolute timeouts. |
| FirewallData | Used to send extra data to the firewall. |
| InBufferSize | The size in bytes of the incoming queue of the socket. |
| OutBufferSize | The size in bytes of the outgoing queue of the socket. |
| CodePage | The system code page used for Unicode to Multibyte translations. |
| MaskSensitive | Whether sensitive data is masked in log messages. |
| UseInternalSecurityAPI | Tells the control whether or not to use the system security libraries or an internal implementation. |
ArticleCount Property (NNTP Control)
This property includes the estimated number of articles in CurrentGroup .
Syntax
nntpcontrol.ArticleCount
Default Value
0
Remarks
This property contains the estimated number of articles in CurrentGroup. The value of this property is 0 if there is no current group (CurrentGroup is ""). Otherwise, when CurrentGroup is set, it is the number of articles in the group as shown by the news server. For most news servers, this is an estimated value of the number of the articles, rather than the exact value.
This property is read-only.
Data Type
Long64
ArticleDate Property (NNTP Control)
This property includes the date of the current article.
Syntax
nntpcontrol.ArticleDate
Default Value
""
Remarks
This property contains the date of the current article. If the control is not connected or CurrentArticle is empty, the value of this property is an empty string. Otherwise, it contains the date of the article as reported by the server. The NewsServer is asked about the headers of the article only if the CurrentArticle property has changed. If CurrentArticle has not changed, the control returns a cached value.
This property is read-only.
Data Type
String
ArticleFrom Property (NNTP Control)
This property includes the email address of the author (for posting articles).
Syntax
nntpcontrol.ArticleFrom[=string]
Default Value
""
Remarks
This property contains the email address of the author (for posting articles). The string in this property is posted with a From article header to the news server.
If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 850 specifications.
This property is not available at design time.
Data Type
String
ArticleHeaders Property (NNTP Control)
This property includes the full headers of the article as retrieved from the server.
Syntax
nntpcontrol.ArticleHeaders
Default Value
""
Remarks
This property contains the full headers of the article as retrieved from the server. If the control is not connected or the CurrentArticle is empty, the value of this property is an empty string. Otherwise, it contains the full headers of the article as reported by the server.
The NewsServer is asked about the headers of the article only if the CurrentArticle property has changed. If CurrentArticle has not changed, the control returns a cached value.
This property is read-only.
Data Type
String
ArticleId Property (NNTP Control)
This property includes the message identifier of the current article.
Syntax
nntpcontrol.ArticleId
Default Value
""
Remarks
This property contains the message identifier of the current article. If the control is not connected or the CurrentArticle is empty, the value of this property is an empty string. Otherwise, it contains the message identifier of the article as reported by the server. The NewsServer is asked about the headers of the article only if the CurrentArticle property has changed. If the CurrentArticle has not changed, the control returns a cached value.
This property is read-only.
Data Type
String
GroupOverviewCount Property (NNTP Control)
The number of records in the GroupOverview arrays.
Syntax
nntpcontrol.GroupOverviewCount
Default Value
0
Remarks
This property controls the size of the following arrays:
- GroupOverviewArticleLines
- GroupOverviewArticleNumber
- GroupOverviewArticleSize
- GroupOverviewDate
- GroupOverviewFrom
- GroupOverviewMessageId
- GroupOverviewOtherHeaders
- GroupOverviewReferences
- GroupOverviewSubject
This property is read-only and not available at design time.
Data Type
Integer
GroupOverviewArticleLines Property (NNTP Control)
This is the number of lines of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewArticleLines(GroupOverviewIndex)
Default Value
0
Remarks
This is the number of lines of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
Long64
GroupOverviewArticleNumber Property (NNTP Control)
This is the number of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewArticleNumber(GroupOverviewIndex)
Default Value
0
Remarks
This is the number of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
Long64
GroupOverviewArticleSize Property (NNTP Control)
This is the size of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewArticleSize(GroupOverviewIndex)
Default Value
0
Remarks
This is the size of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
Long64
GroupOverviewDate Property (NNTP Control)
This is the date of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewDate(GroupOverviewIndex)
Default Value
""
Remarks
This is the date of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
String
GroupOverviewFrom Property (NNTP Control)
This is the sender of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewFrom(GroupOverviewIndex)
Default Value
""
Remarks
This is the sender of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
String
GroupOverviewMessageId Property (NNTP Control)
This is the unique message Id of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewMessageId(GroupOverviewIndex)
Default Value
""
Remarks
This is the unique message Id of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
String
GroupOverviewOtherHeaders Property (NNTP Control)
This is the remaining headers of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewOtherHeaders(GroupOverviewIndex)
Default Value
""
Remarks
This is the remaining headers of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
String
GroupOverviewReferences Property (NNTP Control)
This is the references of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewReferences(GroupOverviewIndex)
Default Value
""
Remarks
This is the references of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
String
GroupOverviewSubject Property (NNTP Control)
This is the subject of an article in a newsgroup overview.
Syntax
nntpcontrol.GroupOverviewSubject(GroupOverviewIndex)
Default Value
""
Remarks
This is the subject of an article in a newsgroup overview.
The GroupOverviewIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupOverviewCount property.
This property is read-only and not available at design time.
Data Type
String
ArticleReferences Property (NNTP Control)
This property includes articles to which the posted article follows up.
Syntax
nntpcontrol.ArticleReferences[=string]
Default Value
""
Remarks
This property contains articles to which the posted article follows up. If this property contains a nonempty string, a References article header is created for the article. This header shows the article identifiers for the posted article to which it refers.
The references must be separated by space characters.
If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 850 specifications.
This property is not available at design time.
Data Type
String
ArticleReplyTo Property (NNTP Control)
This property includes the address to reply to (for posting articles).
Syntax
nntpcontrol.ArticleReplyTo[=string]
Default Value
""
Remarks
This property contains the address to reply to (for posting articles). If this property contains a nonempty string, a Reply-To article header is created for the article. This header shows the address to use for replies, which is useful if this address is different from the one in ArticleFrom.
If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 850 specifications.
This property is not available at design time.
Data Type
String
ArticleSubject Property (NNTP Control)
This property includes the article subject (for posted articles).
Syntax
nntpcontrol.ArticleSubject[=string]
Default Value
""
Remarks
The string in this property is posted with a Subject article header to the news server.
If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 850 specifications.
This property is not available at design time.
Data Type
String
ArticleText Property (NNTP Control)
This property includes the full text of the article (without the headers).
Syntax
nntpcontrol.ArticleText[=string]
Default Value
""
Remarks
This property contains the full text of the article (without the headers). If the control is not connected or CurrentArticle is empty, the value of this property is an empty string. Otherwise, it contains the full text of the article as reported by the server.
The NewsServer is asked about the text of the article only if the CurrentArticle property has changed. If CurrentArticle has not changed, the control returns a cached value.
When posting articles, this property contains the full text of the article to post.
It is advisable that the text contained in this property be a collection of lines with lengths less than or equal to 80 bytes separated by CRLF (Chr$(13) & Chr$(10)) . The text in the article lines must contain 7-bit characters so that the article can be successfully transferred through the various Usenet news servers on the Internet.
The control automatically escapes lines that start with a "." by adding another "." as specified in RFC 977. The article text is unescaped by the news server, so the process is fully transparent.
This property is not available at design time.
Data Type
String
AttachedFile Property (NNTP Control)
This property includes a filename for which the contents will be appended to the ArticleText when posting articles.
Syntax
nntpcontrol.AttachedFile[=string]
Default Value
""
Remarks
The content of this property is appended to the text in ArticleText (if any) and sent to the news server. This property is useful for posting arbitrarily large articles or sending MIME attachments.
It is advisable that the text contained in the file be a collection of lines with lengths less than or equal to 80 bytes separated by CRLF (Chr$(13) & Chr$(10)) . The text in the message lines must contain only 7-bit characters so that the message may be sent successfully through the various Usenet news servers on the Internet.
The control automatically escapes lines that start with a "." by adding another as specified in RFC 822. The article text is unescaped by the news server, so the process is fully transparent.
This property is not available at design time.
Data Type
String
CheckDate Property (NNTP Control)
This property includes the date (format YYMMDD HHMMSS) to check for the creation of new groups. If the group was created after the date specified, it is considered new.
Syntax
nntpcontrol.CheckDate[=string]
Default Value
"000101 000000"
Remarks
This property contains the date (format YYMMDD HHMMSS) to check for the creation of new groups. If the group was created after the date specified, it is considered new. The value of this property is used as an argument for the ListNewGroups method.
This property is not available at design time.
Data Type
String
Command Property (NNTP Control)
This property is used to send additional commands directly to the server.
Syntax
nntpcontrol.Command[=string]
Default Value
""
Remarks
This property can be used to send additional commands directly to the server. Check the LastReply property or trap the PITrail events coming from the server to get the response.
This property is write-only and not available at design time.
Data Type
String
Connected Property (NNTP Control)
This shows whether the control is connected.
Syntax
nntpcontrol.Connected[=boolean]
Default Value
False
Remarks
This property is used to determine whether or not the control is connected to the remote host.
Note: It is recommended to use the Connect or Disconnect method instead of setting this property.
This property is not available at design time.
Data Type
Boolean
CurrentArticle Property (NNTP Control)
This property includes the number or message identifier of the current article.
Syntax
nntpcontrol.CurrentArticle[=string]
Default Value
""
Remarks
This property specifies either a message identifier or an article number uniquely identifying a particular article. It is then used as an argument to methods such as FetchArticle.
Data Type
String
CurrentGroup Property (NNTP Control)
This property includes the name of the current group.
Syntax
nntpcontrol.CurrentGroup[=string]
Default Value
""
Remarks
This property contains the name of the current group. When this property is set to a valid group name, the control sends a Network News Transfer Protocol (NNTP) GROUP command to the NewsServer and enters the specified group. If the command is successful, FirstArticle, LastArticle, and ArticleCount are set to the reported values for the group. This property is then used for all references to articles (until it is changed to another group).
Note: It is recommended to use the ChangeCurrentGroup method instead of setting this property.
Data Type
String
FirewallAutoDetect Property (NNTP Control)
This property tells the control whether or not to automatically detect and use firewall system settings, if available.
Syntax
nntpcontrol.FirewallAutoDetect[=boolean]
Default Value
False
Remarks
This property tells the control whether or not to automatically detect and use firewall system settings, if available.
Data Type
Boolean
FirewallType Property (NNTP Control)
This property determines the type of firewall to connect through.
Syntax
nntpcontrol.FirewallType[=integer]
Possible Values
fwNone(0), fwTunnel(1), fwSOCKS4(2), fwSOCKS5(3), fwSOCKS4A(10)
Default Value
0
Remarks
This property determines the type of firewall to connect through. The applicable values are as follows:
| fwNone (0) | No firewall (default setting). |
| fwTunnel (1) | Connect through a tunneling proxy. FirewallPort is set to 80. |
| fwSOCKS4 (2) | Connect through a SOCKS4 Proxy. FirewallPort is set to 1080. |
| fwSOCKS5 (3) | Connect through a SOCKS5 Proxy. FirewallPort is set to 1080. |
| fwSOCKS4A (10) | Connect through a SOCKS4A Proxy. FirewallPort is set to 1080. |
Data Type
Integer
FirewallHost Property (NNTP Control)
This property contains the name or IP address of firewall (optional).
Syntax
nntpcontrol.FirewallHost[=string]
Default Value
""
Remarks
This property contains the name or IP address of firewall (optional). If a FirewallHost is given, the requested connections will be authenticated through the specified firewall when connecting.
If this property is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, the control fails with an error.
Data Type
String
FirewallPassword Property (NNTP Control)
This property contains a password if authentication is to be used when connecting through the firewall.
Syntax
nntpcontrol.FirewallPassword[=string]
Default Value
""
Remarks
This property contains a password if authentication is to be used when connecting through the firewall. If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to connect and authenticate to the given firewall. If the authentication fails, the control fails with an error.
Data Type
String
FirewallPort Property (NNTP Control)
This property contains the transmission control protocol (TCP) port for the firewall Host .
Syntax
nntpcontrol.FirewallPort[=integer]
Default Value
0
Remarks
This property contains the transmission control protocol (TCP) port for the firewall FirewallHost. See the description of the FirewallHost property for details.
Note: This property is set automatically when FirewallType is set to a valid value. See the description of the FirewallType property for details.
Data Type
Integer
FirewallUser Property (NNTP Control)
This property contains a user name if authentication is to be used connecting through a firewall.
Syntax
nntpcontrol.FirewallUser[=string]
Default Value
""
Remarks
This property contains a user name if authentication is to be used connecting through a firewall. If the FirewallHost is specified, this property and FirewallPassword properties are used to connect and authenticate to the given Firewall. If the authentication fails, the control fails with an error.
Data Type
String
FirstArticle Property (NNTP Control)
This property includes the number of the first article in CurrentGroup .
Syntax
nntpcontrol.FirstArticle
Default Value
0
Remarks
This property contains the number of the first article in CurrentGroup. The value of this property is zero if there is no current group (CurrentGroup is "").
This property is read-only.
Data Type
Long64
GroupListCount Property (NNTP Control)
The number of records in the GroupList arrays.
Syntax
nntpcontrol.GroupListCount
Default Value
0
Remarks
This property controls the size of the following arrays:
The array indices start at 0 and end at GroupListCount - 1.This property is read-only and not available at design time.
Data Type
Integer
GroupListCanPost Property (NNTP Control)
This property indicates whether a group in a newsgroup listing allows postings or articles.
Syntax
nntpcontrol.GroupListCanPost(GroupListIndex)
Default Value
False
Remarks
This property indicates whether a group in a newsgroup listing allows postings or articles.
The GroupListIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupListCount property.
This property is read-only and not available at design time.
Data Type
Boolean
GroupListFirstArticle Property (NNTP Control)
This property shows the first available article in a newsgroup listing.
Syntax
nntpcontrol.GroupListFirstArticle(GroupListIndex)
Default Value
0
Remarks
This property shows the first available article in a newsgroup listing.
The GroupListIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupListCount property.
This property is read-only and not available at design time.
Data Type
Long64
GroupListGroup Property (NNTP Control)
This property shows the group name in a newsgroup listing.
Syntax
nntpcontrol.GroupListGroup(GroupListIndex)
Default Value
""
Remarks
This property shows the group name in a newsgroup listing.
The GroupListIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupListCount property.
This property is read-only and not available at design time.
Data Type
String
GroupListLastArticle Property (NNTP Control)
This property shows the last available article in a newsgroup listing.
Syntax
nntpcontrol.GroupListLastArticle(GroupListIndex)
Default Value
0
Remarks
This property shows the last available article in a newsgroup listing.
The GroupListIndex parameter specifies the index of the item in the array. The size of the array is controlled by the GroupListCount property.
This property is read-only and not available at design time.
Data Type
Long64
Idle Property (NNTP Control)
The current status of the control.
Syntax
nntpcontrol.Idle
Default Value
True
Remarks
Idle will be False if the component is currently busy (communicating and/or waiting for an answer), and True at all other times.
This property is read-only.
Data Type
Boolean
LastArticle Property (NNTP Control)
This property includes the number of the last article in CurrentGroup .
Syntax
nntpcontrol.LastArticle
Default Value
0
Remarks
This property contains the number of the last article in CurrentGroup. The value of this property is zero if there is no current group (CurrentGroup is "").
This property is read-only.
Data Type
Long64
LastReply Property (NNTP Control)
The last reply from the server.
Syntax
nntpcontrol.LastReply
Default Value
""
Remarks
This property indicates the last reply received from the server. It can be used for informational purposes. The same information and more can also be retrieved through the PITrail event.
This property is read-only.
Data Type
String
LocalFile Property (NNTP Control)
This property includes the path to a local file to download the article body. If the file exists, it is overwritten (optional).
Syntax
nntpcontrol.LocalFile[=string]
Default Value
""
Remarks
This property is used when retrieving an article. If this property is empty, then the received data are provided through the parameters of the Transfer event.
Data Type
String
LocalHost Property (NNTP Control)
The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
Syntax
nntpcontrol.LocalHost[=string]
Default Value
""
Remarks
The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.
In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the control initiate connections (or accept in the case of server controls) only through that interface.
If the control is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).
NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.
Data Type
String
MaxLines Property (NNTP Control)
This property includes the maximum number of message lines aside from headers to retrieve.
Syntax
nntpcontrol.MaxLines[=long64]
Default Value
0
Remarks
This property is used to limit the number of text lines aside from headers retrieved for messages. This property is used in conjunction with the ArticleText property.
Note: Because of the Network News Transfer Protocol (NNTP) limitations, the full text of the article is always retrieved from the server, but only MaxLines will be stored in ArticleText.
The default value of the property is zero. In this case, the entire message will be retrieved, without interruptions.
This property is not available at design time.
Data Type
Long64
Newsgroups Property (NNTP Control)
This property includes a comma-separated list of newsgroups in which to post the article.
Syntax
nntpcontrol.Newsgroups[=string]
Default Value
""
Remarks
The string in this property is posted with a Newsgroups article header to the news server. It specifies the list of groups where the article is posted (comma separated).
If this property contains "" (empty string), then the value of the CurrentGroup property is used to specify the target newsgroup for the posted article.
If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 850 specifications.
This property is not available at design time.
Data Type
String
NewsPort Property (NNTP Control)
This property includes the server port for the secure Network News Transfer Protocol (NNTP) (default 119).
Syntax
nntpcontrol.NewsPort[=integer]
Default Value
119
Remarks
For implicit Secure Sockets Layer (SSL), use port 563 (please refer to the SSLStartMode property for more information).
A valid port number (a value between 1 and 65535) is required for the connection to take place. The property must be set before a connection is attempted and cannot be changed once a connection is established. Any attempt to change this property while connected will fail with an error.
This property is not available at design time.
Data Type
Integer
NewsServer Property (NNTP Control)
This property includes the name or address of a news server.
Syntax
nntpcontrol.NewsServer[=string]
Default Value
""
Remarks
This property specifies the IP address (IP number in dotted internet format) or the domain name for the news server. It is set before a connection is attempted and cannot be changed once a connection is in progress.
If this property is set to a domain name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, an error is returned.
If the control is configured to use a SOCKS firewall, the value assigned to this property may be preceded with an "*". If this is the case, the host name is passed to the firewall unresolved and the firewall performs the DNS resolution.
Data Type
String
Organization Property (NNTP Control)
This property includes the organization of the author (for posting articles).
Syntax
nntpcontrol.Organization[=string]
Default Value
""
Remarks
This property contains the organization of the article's author. If this property contains a nonempty string, an Organization article header is created for the article. This header shows the organization of the author and is used for information purposes only.
If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 850 specifications.
This property is not available at design time.
Data Type
String
OtherHeaders Property (NNTP Control)
This property includes an RFC 850-compliant string consisting of extra headers (for posting articles).
Syntax
nntpcontrol.OtherHeaders[=string]
Default Value
""
Remarks
This property contains a string of headers to be appended to the message headers created from other properties like From and Subject.
The headers must be of the format "header: value" as specified in RFC 850. Header lines should be separated by CRLF (Chr$(13) & Chr$(10)) .
Use this property with caution. If this property contains invalid headers, article posting might not be successful.
This property is useful for extending the functionality of the control. A good example is posting of MIME attachments.
Special Case: If this property starts with an empty line (e.g., carriage return line feed, CRLF), then the value of this property is used instead of the normally computed article headers.
This property is not available at design time.
Data Type
String
OverviewRange Property (NNTP Control)
This property includes the range for the GroupOverview method (first-last).
Syntax
nntpcontrol.OverviewRange[=string]
Default Value
"-"
Remarks
This property specifies a range of articles for which to retrieve article overviews from the server. The format is 'first-last' where first is "" (empty string) or a positive number, and last is "" (empty string), a positive number, or the token end.
The default value of this property is '-', meaning 'all articles in the group'.
This property is not available at design time.
Data Type
String
ParsedHeaderCount Property (NNTP Control)
The number of records in the ParsedHeader arrays.
Syntax
nntpcontrol.ParsedHeaderCount
Default Value
0
Remarks
This property controls the size of the following arrays:
The array indices start at 0 and end at ParsedHeaderCount - 1.This property is read-only and not available at design time.
Data Type
Integer
ParsedHeaderField Property (NNTP Control)
This property contains the name of the HTTP header (this is the same case as it is delivered).
Syntax
nntpcontrol.ParsedHeaderField(ParsedHeaderIndex)
Default Value
""
Remarks
This property contains the name of the HTTP Header (this is the same case as it is delivered).
The ParsedHeaderIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ParsedHeaderCount property.
This property is read-only and not available at design time.
Data Type
String
ParsedHeaderValue Property (NNTP Control)
This property contains the header contents.
Syntax
nntpcontrol.ParsedHeaderValue(ParsedHeaderIndex)
Default Value
""
Remarks
This property contains the Header contents.
The ParsedHeaderIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ParsedHeaderCount property.
This property is read-only and not available at design time.
Data Type
String
Password Property (NNTP Control)
This property includes the logon password for the NewsServer .
Syntax
nntpcontrol.Password[=string]
Default Value
""
Remarks
This property contains a logon password for the NewsServer. If this property is set to a nonempty string, then when connecting to the NewsServer an AUTHINFO PASS command is sent to provide authentication information for the user. This command is not part of the Network News Transfer Protocol (NNTP), but it is widely used by popular news servers.
Data Type
String
SearchHeader Property (NNTP Control)
This property includes a header for the GroupSearch method.
Syntax
nntpcontrol.SearchHeader[=string]
Default Value
""
Remarks
This property specifies the header to search for SearchPattern (e.g., Subject).
This property is not available at design time.
Data Type
String
SearchPattern Property (NNTP Control)
This property includes a search pattern for the GroupSearch method.
Syntax
nntpcontrol.SearchPattern[=string]
Default Value
""
Remarks
This property contains a search pattern for the GroupSearch method. The format of the pattern is the same as the patterns used by the UNIX Find command.
As an example, "* new *" will match all headers that contain the word "new".
This property is not available at design time.
Data Type
String
SearchRange Property (NNTP Control)
This property includes the range for the GroupSearch method (first-last).
Syntax
nntpcontrol.SearchRange[=string]
Default Value
"-"
Remarks
This property specifies a range of articles for which to do a search on the server. The format is First-Last where First is "" (empty string) or a positive number, and Last is "" (empty string), a positive number, or the token End.
The default value of the property is "-", meaning "search all articles in the group".
This property is not available at design time.
Data Type
String
SSLAcceptServerCertEncoded Property (NNTP Control)
This is the certificate (PEM/base64 encoded).
Syntax
nntpcontrol.SSLAcceptServerCertEncoded[=string]
Default Value
""
Remarks
This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLAcceptServerCertStore and SSLAcceptServerCertSubject properties also may be used to specify a certificate.
When SSLAcceptServerCertEncoded is set, a search is initiated in the current SSLAcceptServerCertStore for the private key of the certificate. If the key is found, SSLAcceptServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLAcceptServerCertSubject is set to an empty string.
To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLAcceptServerCertEncodedB.
This property is not available at design time.
Data Type
Binary String
SSLCertEncoded Property (NNTP Control)
This is the certificate (PEM/base64 encoded).
Syntax
nntpcontrol.SSLCertEncoded[=string]
Default Value
""
Remarks
This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLCertStore and SSLCertSubject properties also may be used to specify a certificate.
When SSLCertEncoded is set, a search is initiated in the current SSLCertStore for the private key of the certificate. If the key is found, SSLCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLCertSubject is set to an empty string.
To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLCertEncodedB.
This property is not available at design time.
Data Type
Binary String
SSLCertStore Property (NNTP Control)
This is the name of the certificate store for the client certificate.
Syntax
nntpcontrol.SSLCertStore[=string]
Default Value
"MY"
Remarks
This is the name of the certificate store for the client certificate.
The SSLCertStoreType property denotes the type of the certificate store specified by SSLCertStore. If the store is password protected, specify the password in SSLCertStorePassword.
SSLCertStore is used in conjunction with the SSLCertSubject property to specify client certificates. If SSLCertStore has a value, and SSLCertSubject or SSLCertEncoded is set, a search for a certificate is initiated. Please see the SSLCertSubject property for details.
Designations of certificate stores are platform-dependent.
The following are designations of the most common User and Machine certificate stores in Windows:
| MY | A certificate store holding personal certificates with their associated private keys. |
| CA | Certifying authority certificates. |
| ROOT | Root certificates. |
When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).
To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLCertStoreB.
Data Type
Binary String
SSLCertStorePassword Property (NNTP Control)
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
Syntax
nntpcontrol.SSLCertStorePassword[=string]
Default Value
""
Remarks
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
Data Type
String
SSLCertStoreType Property (NNTP Control)
This is the type of certificate store for this certificate.
Syntax
nntpcontrol.SSLCertStoreType[=integer]
Possible Values
cstUser(0), cstMachine(1), cstPFXFile(2), cstPFXBlob(3), cstJKSFile(4), cstJKSBlob(5), cstPEMKeyFile(6), cstPEMKeyBlob(7), cstPublicKeyFile(8), cstPublicKeyBlob(9), cstSSHPublicKeyBlob(10), cstP7BFile(11), cstP7BBlob(12), cstSSHPublicKeyFile(13), cstPPKFile(14), cstPPKBlob(15), cstXMLFile(16), cstXMLBlob(17), cstJWKFile(18), cstJWKBlob(19), cstSecurityKey(20), cstBCFKSFile(21), cstBCFKSBlob(22), cstPKCS11(23), cstAuto(99)
Default Value
0
Remarks
This is the type of certificate store for this certificate.
The control supports both public and private keys in a variety of formats. When the cstAuto value is used the control will automatically determine the type. This property can take one of the following values:
| 0 (cstUser - default) | For Windows, this specifies that the certificate store is a certificate store owned by the current user. Note: this store type is not available in Java. |
| 1 (cstMachine) | For Windows, this specifies that the certificate store is a machine store. Note: this store type is not available in Java. |
| 2 (cstPFXFile) | The certificate store is the name of a PFX (PKCS12) file containing certificates. |
| 3 (cstPFXBlob) | The certificate store is a string (binary or base64-encoded) representing a certificate store in PFX (PKCS12) format. |
| 4 (cstJKSFile) | The certificate store is the name of a Java Key Store (JKS) file containing certificates. Note: this store type is only available in Java. |
| 5 (cstJKSBlob) | The certificate store is a string (binary or base64-encoded) representing a certificate store in Java Key Store (JKS) format. Note: this store type is only available in Java. |
| 6 (cstPEMKeyFile) | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. |
| 7 (cstPEMKeyBlob) | The certificate store is a string (binary or base64-encoded) that contains a private key and an optional certificate. |
| 8 (cstPublicKeyFile) | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. |
| 9 (cstPublicKeyBlob) | The certificate store is a string (binary or base64-encoded) that contains a PEM- or DER-encoded public key certificate. |
| 10 (cstSSHPublicKeyBlob) | The certificate store is a string (binary or base64-encoded) that contains an SSH-style public key. |
| 11 (cstP7BFile) | The certificate store is the name of a PKCS7 file containing certificates. |
| 12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS7 format. |
| 13 (cstSSHPublicKeyFile) | The certificate store is the name of a file that contains an SSH-style public key. |
| 14 (cstPPKFile) | The certificate store is the name of a file that contains a PPK (PuTTY Private Key). |
| 15 (cstPPKBlob) | The certificate store is a string (binary) that contains a PPK (PuTTY Private Key). |
| 16 (cstXMLFile) | The certificate store is the name of a file that contains a certificate in XML format. |
| 17 (cstXMLBlob) | The certificate store is a string that contains a certificate in XML format. |
| 18 (cstJWKFile) | The certificate store is the name of a file that contains a JWK (JSON Web Key). |
| 19 (cstJWKBlob) | The certificate store is a string that contains a JWK (JSON Web Key). |
| 21 (cstBCFKSFile) | The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). Note: this store type is only available in Java and .NET. |
| 22 (cstBCFKSBlob) | The certificate store is a string (binary or base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. Note: this store type is only available in Java and .NET. |
| 23 (cstPKCS11) | The certificate is present on a physical security key accessible via a PKCS11 interface.
To use a security key the necessary data must first be collected using the CertMgr control. The ListStoreCertificates method may be called after setting CertStoreType to cstPKCS11, CertStorePassword to the PIN, and CertStore to the full path of the PKCS11 dll. The certificate information returned in the CertList event's CertEncoded parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the SSLCertStore and set SSLCertStorePassword to the PIN. Code Example: SSH Authentication with Security Key
|
| 99 (cstAuto) | The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically. |
Data Type
Integer
SSLCertSubject Property (NNTP Control)
This is the subject of the certificate used for client authentication.
Syntax
nntpcontrol.SSLCertSubject[=string]
Default Value
""
Remarks
This is the subject of the certificate used for client authentication.
This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.
If a matching certificate is found, the property is set to the full subject of the matching certificate.
If an exact match is not found, the store is searched for subjects containing the value of the property.
If a match is still not found, the property is set to an empty string, and no certificate is selected.
The special value "*" picks a random certificate in the certificate store.
The certificate subject is a comma separated list of distinguished name fields and values. For instance "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are displayed below.
| Field | Meaning |
| CN | Common Name. This is commonly a host name like www.server.com. |
| O | Organization |
| OU | Organizational Unit |
| L | Locality |
| S | State |
| C | Country |
| E | Email Address |
If a field value contains a comma it must be quoted.
Data Type
String
SSLEnabled Property (NNTP Control)
Whether TLS/SSL is enabled.
Syntax
nntpcontrol.SSLEnabled[=boolean]
Default Value
False
Remarks
This setting specifies whether TLS/SSL is enabled in the control. When False (default) the control operates in plaintext mode. When True TLS/SSL is enabled.
TLS/SSL may also be enabled by setting SSLStartMode. Setting SSLStartMode will automatically update this property value.
This property is not available at design time.
Data Type
Boolean
SSLProvider Property (NNTP Control)
This specifies the SSL/TLS implementation to use.
Syntax
nntpcontrol.SSLProvider[=integer]
Possible Values
sslpAutomatic(0), sslpPlatform(1), sslpInternal(2)
Default Value
0
Remarks
This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic) the control will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.
Possible values are:
| 0 (sslpAutomatic - default) | Automatically selects the appropriate implementation. |
| 1 (sslpPlatform) | Uses the platform/system implementation. |
| 2 (sslpInternal) | Uses the internal implementation. |
In most cases using the default value (Automatic) is recommended. The control will select a provider depending on the current platform.
When Automatic is selected the platform implementation is used by default. When TLS 1.3 is enabled via SSLEnabledProtocols the internal implementation is used.
Data Type
Integer
SSLServerCertEncoded Property (NNTP Control)
This is the certificate (PEM/base64 encoded).
Syntax
nntpcontrol.SSLServerCertEncoded
Default Value
""
Remarks
This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLServerCertStore and SSLServerCertSubject properties also may be used to specify a certificate.
When SSLServerCertEncoded is set, a search is initiated in the current SSLServerCertStore for the private key of the certificate. If the key is found, SSLServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLServerCertSubject is set to an empty string.
To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLServerCertEncodedB.
This property is read-only and not available at design time.
Data Type
Binary String
SSLStartMode Property (NNTP Control)
Determines how the control starts the SSL negotiation.
Syntax
nntpcontrol.SSLStartMode[=integer]
Possible Values
sslAutomatic(0), sslImplicit(1), sslExplicit(2), sslNone(3)
Default Value
3
Remarks
The SSLStartMode property may have one of the following values:
| 0 (sslAutomatic) | If the remote port is set to the standard plaintext port of the protocol (where applicable), the control will behave the same as if SSLStartMode is set to sslExplicit. In all other cases, SSL negotiation will be implicit (sslImplicit). |
| 1 (sslImplicit) | The SSL negotiation will start immediately after the connection is established. |
| 2 (sslExplicit) | The control will first connect in plaintext, and then explicitly start SSL negotiation through a protocol command such as STARTTLS. |
| 3 (sslNone - default) | No SSL negotiation, no SSL security. All communication will be in plaintext mode. |
Data Type
Integer
Timeout Property (NNTP Control)
A timeout for the control.
Syntax
nntpcontrol.Timeout[=integer]
Default Value
60
Remarks
If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.
If Timeout is set to a positive value, the control will wait for the operation to complete before returning control.
The control will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.
If Timeout expires, and the operation is not yet complete, the control fails with an error.
Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.
The default value for the Timeout property is 60 seconds.
Data Type
Integer
User Property (NNTP Control)
This property includes a user identifier to login as in the NewsServer .
Syntax
nntpcontrol.User[=string]
Default Value
""
Remarks
This property contains a user identifier to login as in the NewsServer. If this property is set to a nonempty string, then when connecting to the NewsServer an AUTHINFO USER command is sent to provide authentication information for the user. Although this command is not part of the Network News Transfer Protocol (NNTP), it is widely used by news servers for authentication purposes.
Data Type
String
ChangeCurrentGroup Method (NNTP Control)
This method changes the current group.
Syntax
nntpcontrol.ChangeCurrentGroup Group
Remarks
This method changes the current group. When calling this method, the control sends a Network News Transfer Protocol (NNTP) GROUP command to the NewsServer and enters the specified group. If the command is successful, FirstArticle, LastArticle, and ArticleCount are set to the reported values for the group.
Config Method (NNTP Control)
Sets or retrieves a configuration setting.
Syntax
nntpcontrol.Config ConfigurationString
Remarks
Config is a generic method available in every control. It is used to set and retrieve configuration settings for the control.
These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the control, access to these internal properties is provided through the Config method.
To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).
To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.
Connect Method (NNTP Control)
This method connects to the news server.
Syntax
nntpcontrol.Connect
Remarks
This method is used to connect to the news server. If the User and/or Password are set, then corresponding AUTHINFO commands are sent to the NewsServer as well.
Disconnect Method (NNTP Control)
This method disconnects from the news server.
Syntax
nntpcontrol.Disconnect
Remarks
This method is used to disconnect from the NewsServer. The control first attempts to send a QUIT command, and if that fails, the connection is broken.
DoEvents Method (NNTP Control)
Processes events from the internal message queue.
Syntax
nntpcontrol.DoEvents
Remarks
When DoEvents is called, the control processes any available events. If no events are available, it waits for a preset period of time, and then returns.
FetchArticle Method (NNTP Control)
This method gets the headers and body of an article specified in CurrentArticle .
Syntax
nntpcontrol.FetchArticle
Remarks
This method gets the headers and body of the article specified in CurrentArticle. The headers are delivered through the Header event, and the article body is delivered through the Transfer event.
If a connection to the NewsServer does not already exist, a new one is created.
FetchArticleBody Method (NNTP Control)
This method gets only the body of an article specified in CurrentArticle .
Syntax
nntpcontrol.FetchArticleBody
Remarks
This method gets only the body of the article specified in CurrentArticle. The body is delivered through the Transfer event.
If a connection to the NewsServer does not already exist, a new one is created.
FetchArticleHeaders Method (NNTP Control)
This method gets only the headers of an article specified in CurrentArticle .
Syntax
nntpcontrol.FetchArticleHeaders
Remarks
This method gets only the headers of the article specified in CurrentArticle. The headers are delivered through the Header event.
If a connection to the NewsServer does not already exist, a new one is created.
GroupOverview Method (NNTP Control)
This method receives an overview for the articles in range OverviewRange in the CurrentGroup .
Syntax
nntpcontrol.GroupOverview
Remarks
This method receives an overview for the articles in range OverviewRange in the CurrentGroup. The overview data are delivered through the GroupOverview event.
If a connection to the NewsServer does not already exist, a new one is created.
GroupSearch Method (NNTP Control)
This method receives an overview for the articles in the range SearchRange in the CurrentGroup .
Syntax
nntpcontrol.GroupSearch
Remarks
This method searches the current newsgroup for articles in the range SearchRange in the CurrentGroup, where SearchHeader matches SearchPattern. The results are delivered through the GroupSearch event.
If a connection to the NewsServer does not already exist, a new one is created.
Interrupt Method (NNTP Control)
Interrupt the current method.
Syntax
nntpcontrol.Interrupt
Remarks
If there is no method in progress, Interrupt simply returns, doing nothing.
ListGroups Method (NNTP Control)
This method lists all newsgroups on the server.
Syntax
nntpcontrol.ListGroups
Remarks
This method asks the server to list all of its newsgroups. Use this method with caution as listing groups may take quite a long time over slow links. The group names and other information are returned via the GroupList event.
If a connection to the NewsServer does not already exist, a new one is created.
ListNewGroups Method (NNTP Control)
This method lists all newgroups on the server.
Syntax
nntpcontrol.ListNewGroups
Remarks
This method asks the server to list all of the newsgroups created since CheckDate. The group names (if any) and other information are returned via the GroupList event.
If a connection to the NewsServer does not already exist, a new one is created.
LocalizeDate Method (NNTP Control)
This method converts a valid RFC 822 message date to a local date and time.
Syntax
nntpcontrol.LocalizeDate DateTime
Remarks
This method can be used to convert an RFC 822 date and time string to the corresponding local date and time.
Note: Dates will be returned in the format: "MM/dd/yyyy hh:mm:ss".
PostArticle Method (NNTP Control)
This method posts the current article and attached file.
Syntax
nntpcontrol.PostArticle
Remarks
This method posts the current article and attached file (if any). If a connection to the NewsServer does not already exist, a new one is created.
Reset Method (NNTP Control)
This method resets the control.
Syntax
nntpcontrol.Reset
Remarks
This method will reset the control's properties to their default values.
ResetHeaders Method (NNTP Control)
This method resets all of the article headers.
Syntax
nntpcontrol.ResetHeaders
Remarks
This method resets all the article headers to "" (empty string). Use this method before posting a new article, so that headers from the previous article are not carried over to the next one.
SendCommand Method (NNTP Control)
Sends the exact command directly to the server.
Syntax
nntpcontrol.SendCommand Command
Remarks
This method sends the command specified by Command to the server exactly as it is provided. Use this method to send additional or custom commands directly to the server.
After calling this method check the LastReply property and/or monitor the PITrail event to obtain the server's response.
ConnectionStatus Event (NNTP Control)
This event is fired to indicate changes in the connection state.
Syntax
Sub nntpcontrol_ConnectionStatus(ConnectionEvent As String, StatusCode As Integer, Description As String)
Remarks
The ConnectionStatus event is fired when the connection state changes: for example, completion of a firewall or proxy connection or completion of a security handshake.
The ConnectionEvent parameter indicates the type of connection event. Values may include the following:
| Firewall connection complete. | |
| Secure Sockets Layer (SSL) or S/Shell handshake complete (where applicable). | |
| Remote host connection complete. | |
| Remote host disconnected. | |
| SSL or S/Shell connection broken. | |
| Firewall host disconnected. |
EndTransfer Event (NNTP Control)
This event is fired when the article text completes transferring.
Syntax
Sub nntpcontrol_EndTransfer(Direction As Integer)
Remarks
The purpose of the EndTransfer event is twofold: (1) during article retrieval, it fires when the article body finishes transferring from the NewsServer to the local host; and (2) during article posting, it fires after the article body has been sent to the NewsServer.
If ArticleText is not empty, the EndTransfer event is fired when the ArticleText finishes transferring from the local host to the NewsServer. If ArticleText is empty, the event is not fired.
If a file is attached to the ArticleText through the AttachedFile property, then EndTransfer fires again when the file finishes transferring. Please see the description of the AttachedFile property for more information.
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
Error Event (NNTP Control)
Information about errors during data delivery.
Syntax
Sub nntpcontrol_Error(ErrorCode As Integer, Description As String)
Remarks
The Error event is fired in case of exceptional conditions during message processing. Normally the control fails with an error.
ErrorCode contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.
GroupList Event (NNTP Control)
This event is fired while group data transfers (during group listings).
Syntax
Sub nntpcontrol_GroupList(Group As String, FirstArticle As Long64, LastArticle As Long64, CanPost As Boolean)
Remarks
The GroupList event is fired for every group reported by the NewsServer when the ListGroups or ListNewGroups method is called.
The Group parameter shows the name of the group.
The FirstArticle and LastArticle parameters contain the article numbers for the first and last articles in the group.
The CanPost is True or False depending on whether article posting is allowed in the group specified by Group.
GroupOverview Event (NNTP Control)
This event is fired for each line of article overview data (during group overviews).
Syntax
Sub nntpcontrol_GroupOverview(ArticleNumber As Long64, Subject As String, From As String, ArticleDate As String, MessageId As String, References As String, ArticleSize As Long64, ArticleLines As Long64, OtherHeaders As String)
Remarks
ArticleNumber contains the number of the article within the group.
Subject contains the subject of the article.
From contains the email address of the article author.
ArticleDate contains the date the article was posted.
MessageId contains the unique message Id for the article.
References contains the message Ids for the articles this article refers to (separated by spaces).
ArticleSize contains the size of the article in bytes.
ArticleLines contains the number of lines in the article.
OtherHeaders contains any other article headers that NewsServer chooses to display for the article.
GroupSearch Event (NNTP Control)
This event is fired for each line of group search data (during group searches).
Syntax
Sub nntpcontrol_GroupSearch(ArticleNumber As Long64, Header As String)
Remarks
ArticleNumber contains the number of the article within the group.
Header contains the matching header.
Header Event (NNTP Control)
This event is fired for every article header being retrieved during article retrieval.
Syntax
Sub nntpcontrol_Header(Field As String, Value As String)
Remarks
The Field parameter contains the name of the header (In the same case as it is delivered). The Value parameter contains the header contents.
If the header line being retrieved is a continuation header line, then the Field parameter contains "" (empty string).
PITrail Event (NNTP Control)
This event traces the commands sent to the news server, and the respective replies.
Syntax
Sub nntpcontrol_PITrail(Direction As Integer, Message As String)
Remarks
The PITrail event is useful for debugging purposes. It shows all the interaction between the client and the server, line by line, except for group listings, group overviews, article header, and article body transfers.
The Message parameter contains the full text of the message. The Direction parameter shows the originator of the message:
| 0 (Client) | The Message originates from the client. |
| 1 (Server) | The Message originates from the server. |
| 2 (Info) | The Message is an informative message originating from the client software (the control code). |
SSLServerAuthentication Event (NNTP Control)
Fired after the server presents its certificate to the client.
Syntax
Sub nntpcontrol_SSLServerAuthentication(CertEncoded As String, CertSubject As String, CertIssuer As String, Status As String, Accept As Boolean)
Remarks
This event is where the client can decide whether to continue with the connection process or not. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether to continue or not.
When Accept is False, Status shows why the verification failed (otherwise, Status contains the string "OK"). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.
SSLStatus Event (NNTP Control)
Shows the progress of the secure connection.
Syntax
Sub nntpcontrol_SSLStatus(Message As String)
Remarks
The event is fired for informational and logging purposes only. Used to track the progress of the connection.
StartTransfer Event (NNTP Control)
This event is fired when the article text starts transferring.
Syntax
Sub nntpcontrol_StartTransfer(Direction As Integer)
Remarks
The purpose of the StartTransfer event is twofold: during article retrieval, it fires when the article body starts transferring from the NewsServer to the local host, and during article posting, it fires before the article body is sent to the NewsServer.
If ArticleText is not empty, the StartTransfer event is fired when the ArticleText starts transferring from the local host to the NewsServer. If ArticleText is empty, the event is not fired.
If a file is attached to the ArticleText via the AttachedFile property, then StartTransfer fires again when the file starts transferring. Please go to the description of the AttachedFile property for more information.
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
Transfer Event (NNTP Control)
This event is fired while the article text gets transferred (to or from the NewsServer ).
Syntax
Sub nntpcontrol_Transfer(Direction As Integer, BytesTransferred As Long64, PercentDone As Integer, Text As String, EOL As Boolean)
Remarks
One or more Transfer events are fired during article retrieval. The Text parameter contains the portion of article data being retrieved.
The BytesTransferred parameter contains the number of bytes transferred since the beginning of the article, including header bytes.
One or more Transfer events are also fired during article posting. Articles consist of ArticleText and an optional AttachedFile. The BytesTransferred parameter shows the number of bytes sent starting from the beginning of ArticleText and/or AttachedFile.
The Transfer event is fired for every line of the article. For complete lines, there is no terminating newline at the end of the Text parameter, and EOL is True. The EOL parameter is False when a line is broken (usually for being too long).
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.
Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.
Config Settings (NNTP Control)
The control accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the control, access to these internal properties is provided through the Config method.NNTP Config Settings
To save all items to the properties, set this configuration setting to -1. If no items are wanted, set this to 0, which will not save any items to the properties. The default for this configuration setting is -1, so all items will be included in the properties.
To save all items to the properties, set this configuration setting to -1. If no items are wanted, set this to 0, which will not save any items to the properties. The default for this configuration setting is -1, so all items will be included in the properties.
It is generally a good idea to use a MaxHeaderLength of less than 100 bytes, although different news servers have different requirements for header lengths.
TCPClient Config Settings
If the FirewallHost setting is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost setting is set to the corresponding address. If the search is not successful, an error is returned.
Note: This setting is provided for use by controls that do not directly expose Firewall properties.
Note: This setting is provided for use by controls that do not directly expose Firewall properties.
Note: This configuration setting is provided for use by controls that do not directly expose Firewall properties.
| 0 | No firewall (default setting). |
| 1 | Connect through a tunneling proxy. FirewallPort is set to 80. |
| 2 | Connect through a SOCKS4 Proxy. FirewallPort is set to 1080. |
| 3 | Connect through a SOCKS5 Proxy. FirewallPort is set to 1080. |
| 10 | Connect through a SOCKS4A Proxy. FirewallPort is set to 1080. |
Note: This setting is provided for use by controls that do not directly expose Firewall properties.
Note: This setting is provided for use by controls that do not directly expose Firewall properties.
Note: This value is not applicable in macOS.
In the case that Linger is True (default), two scenarios determine how long the connection will linger. In the first, if LingerTime is 0 (default), the system will attempt to send pending data for a connection until the default IP timeout expires.
In the second scenario, if LingerTime is a positive value, the system will attempt to send pending data until the specified LingerTime is reached. If this attempt fails, then the system will reset the connection.
The default behavior (which is also the default mode for stream sockets) might result in a long delay in closing the connection. Although the control returns control immediately, the system could hold system resources until all pending data are sent (even after your application closes).
Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you sent (e.g., by a client acknowledgment), setting this property to False might be the appropriate course of action.
In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the control initiate connections (or accept in the case of server controls) only through that interface.
If the control is connected, the LocalHost setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).
Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established.
LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.
This; setting is useful when trying to connect to services that require a trusted port in the client side. An example is the remote shell (rsh) service in UNIX systems.
If an EOL string is found in the input stream before MaxLineLength bytes are received, the DataIn event is fired with the EOL parameter set to True, and the buffer is reset.
If no EOL is found, and MaxLineLength bytes are accumulated in the buffer, the DataIn event is fired with the EOL parameter set to False, and the buffer is reset.
The minimum value for MaxLineLength is 256 bytes. The default value is 2048 bytes.
www.google.com;www.nsoftware.com
Note: This value is not applicable in Java.
By default, this config is set to false.
| 0 | IPv4 Only |
| 1 | IPv6 Only |
| 2 | IPv6 with IPv4 fallback |
SSL Config Settings
When enabled, SSL packet logs are output using the SSLStatus event, which will fire each time an SSL packet is sent or received.
Enabling this setting has no effect if SSLProvider is set to Platform.
The path set by this property should point to a directory containing CA certificates in PEM format. The files each contain one CA certificate. The files are looked up by the CA subject name hash value, which must hence be available. If more than one CA certificate with the same name hash value exist, the extension must be different (e.g. 9d66eef0.0, 9d66eef0.1 etc). OpenSSL recommends to use the c_rehash utility to create the necessary links. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.
The file set by this property should contain a list of CA certificates in PEM format. The file can contain several CA certificates identified by
-----BEGIN CERTIFICATE-----
... (CA certificate in base64 encoding) ...
-----END CERTIFICATE-----
sequences. Before, between, and after the certificates text is allowed which can be used e.g. for descriptions of the certificates. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.
The format of this string is described in the OpenSSL man page ciphers(1) section "CIPHER LIST FORMAT". Please refer to it for details. The default string "DEFAULT" is determined at compile time and is normally equivalent to "ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH".
By default OpenSSL uses the device file "/dev/urandom" to seed the PRNG and setting OpenSSLPrngSeedData is not required. If set, the string specified is used to seed the PRNG.
If set to true, the control will reuse the context if and only if the following criteria are met:
- The target host name is the same.
- The system cache entry has not expired (default timeout is 10 hours).
- The application process that calls the function is the same.
- The logon session is the same.
- The instance of the control is the same.
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When set to 0 (default) the CRL check will not be performed by the control. When set to 1, it will attempt to perform the CRL check, but will continue without an error if the server's certificate does not support CRL. When set to 2, it will perform the CRL check and will throw an error if CRL is not supported.
This configuration setting is only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.
When set to 0 (default) the control will not perform an OCSP check. When set to 1, it will attempt to perform the OCSP check, but will continue without an error if the server's certificate does not support OCSP. When set to 2, it will perform the OCSP check and will throw an error if OCSP is not supported.
This configuration setting is only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.
Please note that this setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the SSLStatus event.
Use this setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.
When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList config setting.
By default, the enabled cipher suites will include all available ciphers ("*").
The special value "*" means that the control will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered.
Multiple cipher suites are separated by semicolons.
Example values when SSLProvider is set to Platform:
obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=CALG_AES_256");
obj.config("SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES");
Possible values when SSLProvider is set to Platform include:
- CALG_3DES
- CALG_3DES_112
- CALG_AES
- CALG_AES_128
- CALG_AES_192
- CALG_AES_256
- CALG_AGREEDKEY_ANY
- CALG_CYLINK_MEK
- CALG_DES
- CALG_DESX
- CALG_DH_EPHEM
- CALG_DH_SF
- CALG_DSS_SIGN
- CALG_ECDH
- CALG_ECDH_EPHEM
- CALG_ECDSA
- CALG_ECMQV
- CALG_HASH_REPLACE_OWF
- CALG_HUGHES_MD5
- CALG_HMAC
- CALG_KEA_KEYX
- CALG_MAC
- CALG_MD2
- CALG_MD4
- CALG_MD5
- CALG_NO_SIGN
- CALG_OID_INFO_CNG_ONLY
- CALG_OID_INFO_PARAMETERS
- CALG_PCT1_MASTER
- CALG_RC2
- CALG_RC4
- CALG_RC5
- CALG_RSA_KEYX
- CALG_RSA_SIGN
- CALG_SCHANNEL_ENC_KEY
- CALG_SCHANNEL_MAC_KEY
- CALG_SCHANNEL_MASTER_HASH
- CALG_SEAL
- CALG_SHA
- CALG_SHA1
- CALG_SHA_256
- CALG_SHA_384
- CALG_SHA_512
- CALG_SKIPJACK
- CALG_SSL2_MASTER
- CALG_SSL3_MASTER
- CALG_SSL3_SHAMD5
- CALG_TEK
- CALG_TLS1_MASTER
- CALG_TLS1PRF
obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_DH_ANON_WITH_AES_128_CBC_SHA");
Possible values when SSLProvider is set to Internal include:
- TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
- TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
- TLS_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended)
- TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended)
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_DES_CBC_SHA
- TLS_DHE_RSA_WITH_DES_CBC_SHA
- TLS_DHE_DSS_WITH_DES_CBC_SHA
- TLS_RSA_WITH_RC4_128_MD5
- TLS_RSA_WITH_RC4_128_SHA
When TLS 1.3 is negotiated (see SSLEnabledProtocols) only the following cipher suites are supported:
- TLS_AES_256_GCM_SHA384
- TLS_CHACHA20_POLY1305_SHA256
- TLS_AES_128_GCM_SHA256
SSLEnabledCipherSuites is used together with SSLCipherStrength.
Not all supported protocols are enabled by default (the value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:
| TLS1.3 | 12288 (Hex 3000) |
| TLS1.2 | 3072 (Hex C00) (Default) |
| TLS1.1 | 768 (Hex 300) (Default) |
| TLS1 | 192 (Hex C0) (Default) |
| SSL3 | 48 (Hex 30) |
| SSL2 | 12 (Hex 0C) |
SSLEnabledProtocols - TLS 1.3 Notes
By default when TLS 1.3 is enabled the control will use the internal TLS implementation when the SSLProvider is set to Automatic for all editions.
In editions which are designed to run on Windows SSLProvider can be set to Platform to use the platform implementation instead of the internal implementation. When configured in this manner, please note that the platform provider is only supported on Windows 11 / Windows Server 2022 and up. The default internal provider is available on all platforms and is not restricted to any specific OS version.
If set to 1 (Platform provider) please be aware of the following notes:
- The platform provider is only available on Windows 11 / Windows Server 2022 and up.
- SSLEnabledCipherSuites and other similar SSL configuration settings are not supported.
- If SSLEnabledProtocols includes both TLS 1.3 and TLS 1.2 the above restrictions are still applicable even if TLS 1.2 is negotiated. Enabling TLS 1.3 with the platform provider changes the implementation used for all TLS versions.
This setting is only applicable when SSLProvider is set to Internal.
If set to True all certificates returned by the server will be present in the Encoded parameter of the SSLServerAuthentication event. This includes the leaf certificate, any intermediate certificate, and the root certificate.
When set, the control will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffice for debugging purposes. When writing to this file the control will only append, it will not overwrite previous values.
Note: This setting is only applicable when SSLProvider is set to Internal.
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipher[connId]");
Note: For server components (e.g.TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherSuite[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchange[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchangeStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedVersion[connId]");
| 0x00000001 | Ignore time validity status of certificate. |
| 0x00000002 | Ignore time validity status of CTL. |
| 0x00000004 | Ignore non-nested certificate times. |
| 0x00000010 | Allow unknown Certificate Authority. |
| 0x00000020 | Ignore wrong certificate usage. |
| 0x00000100 | Ignore unknown certificate revocation status. |
| 0x00000200 | Ignore unknown CTL signer revocation status. |
| 0x00000400 | Ignore unknown Certificate Authority revocation status. |
| 0x00000800 | Ignore unknown Root revocation status. |
| 0x00008000 | Allow test Root certificate. |
| 0x00004000 | Trust test Root certificate. |
| 0x80000000 | Ignore non-matching CN (certificate CN not-matching server name). |
This functionality is currently not available when the provider is OpenSSL.
The value of this setting is a newline (CrLf) separated list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When specified the control will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the control fails with an error.
The format of this value is a comma separated list of hash-signature combinations. For instance:
component.SSLProvider = TCPClientSSLProviders.sslpInternal;
component.Config("SSLEnabledProtocols=3072"); //TLS 1.2
component.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa");
The default value for this setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa.
In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.
The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1.
When using TLS 1.2 and SSLProvider is set to Internal, the values refer to the supported groups for ECC. The following values are supported:
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1" (default)
The default value is set to balance common supported groups and the computational resources required to generate key shares. As a result only some groups are included by default in this setting.
Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group.
In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so.
The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072
The values are ordered from most preferred to least preferred. The following values are supported:
- "ecdhe_x25519" (default)
- "ecdhe_x448"
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1"
- "ffdhe_2048" (default)
- "ffdhe_3072" (default)
- "ffdhe_4096"
- "ffdhe_6144"
- "ffdhe_8192"
- "ed25519" (default)
- "ed448" (default)
- "ecdsa_secp256r1_sha256" (default)
- "ecdsa_secp384r1_sha384" (default)
- "ecdsa_secp521r1_sha512" (default)
- "rsa_pkcs1_sha256" (default)
- "rsa_pkcs1_sha384" (default)
- "rsa_pkcs1_sha512" (default)
- "rsa_pss_sha256" (default)
- "rsa_pss_sha384" (default)
- "rsa_pss_sha512" (default)
The default value is ecdhe_x25519,ecdhe_x448,ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1,ffdhe_2048,ffdhe_3072,ffdhe_4096,ffdhe_6144,ffdhe_8192
The values are ordered from most preferred to least preferred. The following values are supported:
- "ecdhe_x25519" (default)
- "ecdhe_x448" (default)
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1" (default)
- "ffdhe_2048" (default)
- "ffdhe_3072" (default)
- "ffdhe_4096" (default)
- "ffdhe_6144" (default)
- "ffdhe_8192" (default)
Socket Config Settings
Note: This option is not valid for UDP ports.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the control is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the control is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.
Base Config Settings
The following is a list of valid code page identifiers:
| Identifier | Name |
| 037 | IBM EBCDIC - U.S./Canada |
| 437 | OEM - United States |
| 500 | IBM EBCDIC - International |
| 708 | Arabic - ASMO 708 |
| 709 | Arabic - ASMO 449+, BCON V4 |
| 710 | Arabic - Transparent Arabic |
| 720 | Arabic - Transparent ASMO |
| 737 | OEM - Greek (formerly 437G) |
| 775 | OEM - Baltic |
| 850 | OEM - Multilingual Latin I |
| 852 | OEM - Latin II |
| 855 | OEM - Cyrillic (primarily Russian) |
| 857 | OEM - Turkish |
| 858 | OEM - Multilingual Latin I + Euro symbol |
| 860 | OEM - Portuguese |
| 861 | OEM - Icelandic |
| 862 | OEM - Hebrew |
| 863 | OEM - Canadian-French |
| 864 | OEM - Arabic |
| 865 | OEM - Nordic |
| 866 | OEM - Russian |
| 869 | OEM - Modern Greek |
| 870 | IBM EBCDIC - Multilingual/ROECE (Latin-2) |
| 874 | ANSI/OEM - Thai (same as 28605, ISO 8859-15) |
| 875 | IBM EBCDIC - Modern Greek |
| 932 | ANSI/OEM - Japanese, Shift-JIS |
| 936 | ANSI/OEM - Simplified Chinese (PRC, Singapore) |
| 949 | ANSI/OEM - Korean (Unified Hangul Code) |
| 950 | ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC) |
| 1026 | IBM EBCDIC - Turkish (Latin-5) |
| 1047 | IBM EBCDIC - Latin 1/Open System |
| 1140 | IBM EBCDIC - U.S./Canada (037 + Euro symbol) |
| 1141 | IBM EBCDIC - Germany (20273 + Euro symbol) |
| 1142 | IBM EBCDIC - Denmark/Norway (20277 + Euro symbol) |
| 1143 | IBM EBCDIC - Finland/Sweden (20278 + Euro symbol) |
| 1144 | IBM EBCDIC - Italy (20280 + Euro symbol) |
| 1145 | IBM EBCDIC - Latin America/Spain (20284 + Euro symbol) |
| 1146 | IBM EBCDIC - United Kingdom (20285 + Euro symbol) |
| 1147 | IBM EBCDIC - France (20297 + Euro symbol) |
| 1148 | IBM EBCDIC - International (500 + Euro symbol) |
| 1149 | IBM EBCDIC - Icelandic (20871 + Euro symbol) |
| 1200 | Unicode UCS-2 Little-Endian (BMP of ISO 10646) |
| 1201 | Unicode UCS-2 Big-Endian |
| 1250 | ANSI - Central European |
| 1251 | ANSI - Cyrillic |
| 1252 | ANSI - Latin I |
| 1253 | ANSI - Greek |
| 1254 | ANSI - Turkish |
| 1255 | ANSI - Hebrew |
| 1256 | ANSI - Arabic |
| 1257 | ANSI - Baltic |
| 1258 | ANSI/OEM - Vietnamese |
| 1361 | Korean (Johab) |
| 10000 | MAC - Roman |
| 10001 | MAC - Japanese |
| 10002 | MAC - Traditional Chinese (Big5) |
| 10003 | MAC - Korean |
| 10004 | MAC - Arabic |
| 10005 | MAC - Hebrew |
| 10006 | MAC - Greek I |
| 10007 | MAC - Cyrillic |
| 10008 | MAC - Simplified Chinese (GB 2312) |
| 10010 | MAC - Romania |
| 10017 | MAC - Ukraine |
| 10021 | MAC - Thai |
| 10029 | MAC - Latin II |
| 10079 | MAC - Icelandic |
| 10081 | MAC - Turkish |
| 10082 | MAC - Croatia |
| 12000 | Unicode UCS-4 Little-Endian |
| 12001 | Unicode UCS-4 Big-Endian |
| 20000 | CNS - Taiwan |
| 20001 | TCA - Taiwan |
| 20002 | Eten - Taiwan |
| 20003 | IBM5550 - Taiwan |
| 20004 | TeleText - Taiwan |
| 20005 | Wang - Taiwan |
| 20105 | IA5 IRV International Alphabet No. 5 (7-bit) |
| 20106 | IA5 German (7-bit) |
| 20107 | IA5 Swedish (7-bit) |
| 20108 | IA5 Norwegian (7-bit) |
| 20127 | US-ASCII (7-bit) |
| 20261 | T.61 |
| 20269 | ISO 6937 Non-Spacing Accent |
| 20273 | IBM EBCDIC - Germany |
| 20277 | IBM EBCDIC - Denmark/Norway |
| 20278 | IBM EBCDIC - Finland/Sweden |
| 20280 | IBM EBCDIC - Italy |
| 20284 | IBM EBCDIC - Latin America/Spain |
| 20285 | IBM EBCDIC - United Kingdom |
| 20290 | IBM EBCDIC - Japanese Katakana Extended |
| 20297 | IBM EBCDIC - France |
| 20420 | IBM EBCDIC - Arabic |
| 20423 | IBM EBCDIC - Greek |
| 20424 | IBM EBCDIC - Hebrew |
| 20833 | IBM EBCDIC - Korean Extended |
| 20838 | IBM EBCDIC - Thai |
| 20866 | Russian - KOI8-R |
| 20871 | IBM EBCDIC - Icelandic |
| 20880 | IBM EBCDIC - Cyrillic (Russian) |
| 20905 | IBM EBCDIC - Turkish |
| 20924 | IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol) |
| 20932 | JIS X 0208-1990 & 0121-1990 |
| 20936 | Simplified Chinese (GB2312) |
| 21025 | IBM EBCDIC - Cyrillic (Serbian, Bulgarian) |
| 21027 | Extended Alpha Lowercase |
| 21866 | Ukrainian (KOI8-U) |
| 28591 | ISO 8859-1 Latin I |
| 28592 | ISO 8859-2 Central Europe |
| 28593 | ISO 8859-3 Latin 3 |
| 28594 | ISO 8859-4 Baltic |
| 28595 | ISO 8859-5 Cyrillic |
| 28596 | ISO 8859-6 Arabic |
| 28597 | ISO 8859-7 Greek |
| 28598 | ISO 8859-8 Hebrew |
| 28599 | ISO 8859-9 Latin 5 |
| 28605 | ISO 8859-15 Latin 9 |
| 29001 | Europa 3 |
| 38598 | ISO 8859-8 Hebrew |
| 50220 | ISO 2022 Japanese with no halfwidth Katakana |
| 50221 | ISO 2022 Japanese with halfwidth Katakana |
| 50222 | ISO 2022 Japanese JIS X 0201-1989 |
| 50225 | ISO 2022 Korean |
| 50227 | ISO 2022 Simplified Chinese |
| 50229 | ISO 2022 Traditional Chinese |
| 50930 | Japanese (Katakana) Extended |
| 50931 | US/Canada and Japanese |
| 50933 | Korean Extended and Korean |
| 50935 | Simplified Chinese Extended and Simplified Chinese |
| 50936 | Simplified Chinese |
| 50937 | US/Canada and Traditional Chinese |
| 50939 | Japanese (Latin) Extended and Japanese |
| 51932 | EUC - Japanese |
| 51936 | EUC - Simplified Chinese |
| 51949 | EUC - Korean |
| 51950 | EUC - Traditional Chinese |
| 52936 | HZ-GB2312 Simplified Chinese |
| 54936 | Windows XP: GB18030 Simplified Chinese (4 Byte) |
| 57002 | ISCII Devanagari |
| 57003 | ISCII Bengali |
| 57004 | ISCII Tamil |
| 57005 | ISCII Telugu |
| 57006 | ISCII Assamese |
| 57007 | ISCII Oriya |
| 57008 | ISCII Kannada |
| 57009 | ISCII Malayalam |
| 57010 | ISCII Gujarati |
| 57011 | ISCII Punjabi |
| 65000 | Unicode UTF-7 |
| 65001 | Unicode UTF-8 |
| Identifier | Name |
| 1 | ASCII |
| 2 | NEXTSTEP |
| 3 | JapaneseEUC |
| 4 | UTF8 |
| 5 | ISOLatin1 |
| 6 | Symbol |
| 7 | NonLossyASCII |
| 8 | ShiftJIS |
| 9 | ISOLatin2 |
| 10 | Unicode |
| 11 | WindowsCP1251 |
| 12 | WindowsCP1252 |
| 13 | WindowsCP1253 |
| 14 | WindowsCP1254 |
| 15 | WindowsCP1250 |
| 21 | ISO2022JP |
| 30 | MacOSRoman |
| 10 | UTF16String |
| 0x90000100 | UTF16BigEndian |
| 0x94000100 | UTF16LittleEndian |
| 0x8c000100 | UTF32String |
| 0x98000100 | UTF32BigEndian |
| 0x9c000100 | UTF32LittleEndian |
| 65536 | Proprietary |
This setting only works on these controls: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.
Setting this setting to tells the control to use the internal implementation instead of using the system security libraries.
This setting is set to by default on all platforms.
Trappable Errors (NNTP Control)
NNTP Errors
| 20119 Firewall Error. Error message contains detailed description. | |
| 20182 Network News Transfer Protocol (NNTP) error. The error message contains the description. | |
| 20183 Communication error. The error message contains the description. | |
| 20184 No NewsServer specified. | |
| 20185 Please specify a sender (From). | |
| 20186 Please specify a subject (Subject). | |
| 20187 Please specify at least a newsgroup to post to (CurrentGroup or Newsgroups). | |
| 20188 Busy executing current method. | |
| 20302 Operation interrupted. | |
| 20303 Cannot open local file. |
The control may also return one of the following error codes, which are inherited from other controls.
TCPClient Errors
| 20101 You cannot change the RemotePort at this time. A connection is in progress. | |
| 20102 You cannot change the RemoteHost (Server) at this time. A connection is in progress. | |
| 20103 The RemoteHost address is invalid (0.0.0.0). | |
| 20105 Already connected. If you want to reconnect, close the current connection first. | |
| 20107 You cannot change the LocalPort at this time. A connection is in progress. | |
| 20108 You cannot change the LocalHost at this time. A connection is in progress. | |
| 20113 You cannot change MaxLineLength at this time. A connection is in progress. | |
| 20117 RemotePort cannot be zero. Please specify a valid service port number. | |
| 20118 You cannot change the UseConnection option while the control is active. | |
| 20136 Operation would block. | |
| 20202 Timeout. | |
| 20212 Action impossible in control's present state. | |
| 20213 Action impossible while not connected. | |
| 20214 Action impossible while listening. | |
| 20302 Timeout. | |
| 20303 Could not open file. | |
| 20435 Unable to convert string to selected CodePage. | |
| 21106 Already connecting. If you want to reconnect, close the current connection first. | |
| 21118 You need to connect first. | |
| 21120 You cannot change the LocalHost at this time. A connection is in progress. | |
| 21121 Connection dropped by remote host. |
SSL Errors
| 20271 Cannot load specified security library. | |
| 20272 Cannot open certificate store. | |
| 20273 Cannot find specified certificate. | |
| 20274 Cannot acquire security credentials. | |
| 20275 Cannot find certificate chain. | |
| 20276 Cannot verify certificate chain. | |
| 20277 Error during handshake. | |
| 20281 Error verifying certificate. | |
| 20282 Could not find client certificate. | |
| 20283 Could not find server certificate. | |
| 20284 Error encrypting data. | |
| 20285 Error decrypting data. |
TCP/IP Errors
| 25005 [10004] Interrupted system call. | |
| 25010 [10009] Bad file number. | |
| 25014 [10013] Access denied. | |
| 25015 [10014] Bad address. | |
| 25023 [10022] Invalid argument. | |
| 25025 [10024] Too many open files. | |
| 25036 [10035] Operation would block. | |
| 25037 [10036] Operation now in progress. | |
| 25038 [10037] Operation already in progress. | |
| 25039 [10038] Socket operation on non-socket. | |
| 25040 [10039] Destination address required. | |
| 25041 [10040] Message too long. | |
| 25042 [10041] Protocol wrong type for socket. | |
| 25043 [10042] Bad protocol option. | |
| 25044 [10043] Protocol not supported. | |
| 25045 [10044] Socket type not supported. | |
| 25046 [10045] Operation not supported on socket. | |
| 25047 [10046] Protocol family not supported. | |
| 25048 [10047] Address family not supported by protocol family. | |
| 25049 [10048] Address already in use. | |
| 25050 [10049] Can't assign requested address. | |
| 25051 [10050] Network is down. | |
| 25052 [10051] Network is unreachable. | |
| 25053 [10052] Net dropped connection or reset. | |
| 25054 [10053] Software caused connection abort. | |
| 25055 [10054] Connection reset by peer. | |
| 25056 [10055] No buffer space available. | |
| 25057 [10056] Socket is already connected. | |
| 25058 [10057] Socket is not connected. | |
| 25059 [10058] Can't send after socket shutdown. | |
| 25060 [10059] Too many references, can't splice. | |
| 25061 [10060] Connection timed out. | |
| 25062 [10061] Connection refused. | |
| 25063 [10062] Too many levels of symbolic links. | |
| 25064 [10063] File name too long. | |
| 25065 [10064] Host is down. | |
| 25066 [10065] No route to host. | |
| 25067 [10066] Directory not empty | |
| 25068 [10067] Too many processes. | |
| 25069 [10068] Too many users. | |
| 25070 [10069] Disc Quota Exceeded. | |
| 25071 [10070] Stale NFS file handle. | |
| 25072 [10071] Too many levels of remote in path. | |
| 25092 [10091] Network subsystem is unavailable. | |
| 25093 [10092] WINSOCK DLL Version out of range. | |
| 25094 [10093] Winsock not loaded yet. | |
| 26002 [11001] Host not found. | |
| 26003 [11002] Non-authoritative 'Host not found' (try again or check DNS setup). | |
| 26004 [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP. | |
| 26005 [11004] Valid name, no data record (check DNS setup). |