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NetServerEnum info  Overview  Group

The NetServerEnum function lists all servers of the specified type that are visible in the specified domain. For example, an application can call NetServerEnum to list all domain controllers only or all SQL servers only.

You can combine bit masks to list several types. For example, a value of 0x00000003 combines the bit masks for SV_TYPE_WORKSTATION (0x00000001) and SV_TYPE_SERVER (0x00000002).

Note  If you require more information on the type, name, and comment for a specific server, use the WNetEnumResource function.

Security Requirements

No special group membership is required to successfully execute NetServerEnum.

NET_API_STATUS NetServerEnum(

    LPTSTR servername,

    DWORD level,

    LPBYTE *bufptr,

    DWORD prefmaxlen,

    LPDWORD entriesread,

    LPDWORD totalentries,

    DWORD servertype,

    LPTSTR domain,

    LPDWORD resume_handle 

   );

Parameters

servername
Pointer to a Unicode string containing the name of the remote server on which the function is to execute. A NULL pointer or string specifies the local computer.
level
Specifies one of the following values to return the level of information provided.

Value

Meaning

100

The bufptr parameter points to an array of SERVER_INFO_100 structures.

101

The bufptr parameter points to an array of SERVER_INFO_101 structures.

bufptr
Pointer to the buffer in which the data set with the level parameter is stored.
prefmaxlen
Preferred maximum length, in 8-bit bytes of returned data.
entriesread
On return, the actual enumerated element count is located in the doubleword pointed to by entriesread.
totalentries
Returns the total number of visible servers and workstations on the network.
servertype
A DWORD mask that filters server entries to return from the enumeration. The defined mask bits specify:

Symbolic constant

Value

Meaning

SV_TYPE_WORKSTATION

0x00000001

All Net workstations

SV_TYPE_SERVER

0x00000002

All Net servers

SV_TYPE_SQLSERVER

0x00000004

Any server running with Microsoft SQL Server

SV_TYPE_DOMAIN_CTRL

0x00000008

Primary domain controller

SV_TYPE_DOMAIN_BAKCTRL

0x00000010

Backup domain controller

SV_TYPE_TIMESOURCE

0x00000020

Server running the Timesource service

SV_TYPE_AFP

0x00000040

Apple File Protocol servers

SV_TYPE_NOVELL

0x00000080

Novell servers

SV_TYPE_DOMAIN_MEMBER

0x00000100

LAN Manager 2.x Domain Member

SV_TYPE_LOCAL_LIST_ONLY

0x40000000

Servers maintained by the browser. See the following Remarks section.

SV_TYPE_PRINT

0x00000200

Server sharing print queue

SV_TYPE_DIALIN

0x00000400

Server running dial-in service

SV_TYPE_XENIX_SERVER

0x00000800

Xenix server

SV_TYPE_MFPN

0x00004000

Microsoft File and Print for Netware

SV_TYPE_NT

0x00001000

Windows NT (either Workstation or Server)

SV_TYPE_WFW

0x00002000

Server running Windows for Workgroups

SV_TYPE_SERVER_NT

0x00008000

Windows NT Non-DC server

SV_TYPE_POTENTIAL_BROWSER

0x00010000

Server that can run the Browser service

SV_TYPE_BACKUP_BROWSER

0x00020000

Server running a Browser service as backup

SV_TYPE_MASTER_BROWSER

0x00040000

Server running the master Browser service

SV_TYPE_DOMAIN_MASTER

0x00080000

Server running the domain master Browser

SV_TYPE_DOMAIN_ENUM

0x80000000

Primary Domain

SV_TYPE_WINDOWS

0x00400000

Windows 95 or later

SV_TYPE_ALL

0xFFFFFFFF

All servers

domain
A pointer to a Unicode string containing the name of the domain for which a list of servers is to returned. If NULL is specified, the primary domain is implied.
resume_handle
Reserved. Must be set to zero. Use the Wnet functions.

Return Values

If the function returns account information, the return value is NERR_Success.

If the function fails, the return value is one of the following error codes:

Value

Meaning

ERROR_ACCESS_DENIED

The user does not have access to the requested information.

NERR_InvalidComputer

The computer name is invalid.

ERROR_NO_BROWSER_SERVERS_FOUND

No browser servers found.

ERROR_MORE_DATA

More entries are available with subsequent calls.

Remarks

The SV_TYPE_LOCAL_LIST_ONLY flag returns the list of servers maintained by the browser internally. This has meaning only on the master browser (or on a computer that has been the master browser in the past). The master browser is the machine that currently has rights to determine which machines can be servers or workstations on the net.

See Also

NetServerDiskEnum, NetQueryDisplayInformation, SERVER_INFO_100, SERVER_INFO_101

See also:


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