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NetShareSetInfo function

Sets the parameters of a shared resource.

Syntax


NET_API_STATUS NetShareSetInfo(
  _In_   LPWSTR servername,
  _In_   LPWSTR netname,
  _In_   DWORD level,
  _In_   LPBYTE buf,
  _Out_  LPDWORD parm_err
);

Parameters

servername [in]

Pointer to a string that specifies the DNS or NetBIOS name of the remote server on which the function is to execute. If this parameter is NULL, the local computer is used.

netname [in]

Pointer to a string that specifies the name of the share to set information on.

level [in]

Specifies the information level of the data. This parameter can be one of the following values.

ValueMeaning
1

Specifies information about the shared resource, including the name and type of the resource, and a comment associated with the resource. The buf parameter points to a SHARE_INFO_1 structure.

2

Specifies information about the shared resource, including the name of the resource, type and permissions, password, and number of connections. The buf parameter points to a SHARE_INFO_2 structure.

502

Specifies information about the shared resource, including the name and type of the resource, required permissions, number of connections, and other pertinent information. The buf parameter points to a SHARE_INFO_502 structure.

503

Specifies the name of the shared resource. The buf parameter points to a SHARE_INFO_503 structure. All members of this structure except shi503_servername are ignored by the NetShareSetInfo function.

Windows Server 2003 and Windows XP:  This information level is not supported.

1004

Specifies a comment associated with the shared resource. The buf parameter points to a SHARE_INFO_1004 structure.

1005

Specifies a set of flags describing the shared resource. The buf parameter points to a SHARE_INFO_1005 structure.

1006

Specifies the maximum number of concurrent connections that the shared resource can accommodate. The buf parameter points to a SHARE_INFO_1006 structure.

1501

Specifies the SECURITY_DESCRIPTOR associated with the specified share. The buf parameter points to a SHARE_INFO_1501 structure.

 

buf [in]

Pointer to the buffer that specifies the data. The format of this data depends on the value of the level parameter. For more information, see Network Management Function Buffers.

parm_err [out]

Pointer to a value that receives the index of the first member of the share information structure that causes the ERROR_INVALID_PARAMETER error. If this parameter is NULL, the index is not returned on error. For more information, see the following Remarks section.

Return value

If the function succeeds, the return value is NERR_Success.

If the function fails, the return value can be one of the following error codes.

Return codeDescription
ERROR_ACCESS_DENIED

The user does not have access to the requested information.

ERROR_INVALID_LEVEL

The value specified for the level parameter is not valid.

ERROR_INVALID_PARAMETER

The specified parameter is not valid. For more information, see the following Remarks section.

NERR_NetNameNotFound

The share name does not exist.

 

Remarks

This function applies only to Server Message Block (SMB) shares. For other types of shares, such as Distributed File System (DFS) or WebDAV shares, use Windows Networking (WNet) functions, which support all types of shares.

Only members of the Administrators or Power Users local group, or those with Print or Server Operator group membership, can successfully execute the NetShareSetInfo function. The Print Operator can set information only about Printer shares.

If the NetShareSetInfo function returns ERROR_INVALID_PARAMETER, you can use the parm_err parameter to indicate the first member of the share information structure that is not valid. (A share information structure begins with SHARE_INFO_ and its format is specified by the level parameter.) The following table lists the values that can be returned in the parm_err parameter and the corresponding structure member that is in error. (The prefix shi*_ indicates that the member can begin with multiple prefixes, for example, shi2_ or shi502_.)

ValueMember
SHARE_NETNAME_PARMNUMshi*_netname
SHARE_TYPE_PARMNUMshi*_type
SHARE_REMARK_PARMNUMshi*_remark
SHARE_PERMISSIONS_PARMNUMshi*_permissions
SHARE_MAX_USES_PARMNUMshi*_max_uses
SHARE_CURRENT_USES_PARMNUMshi*_current_uses
SHARE_PATH_PARMNUMshi*_path
SHARE_PASSWD_PARMNUMshi*_passwd
SHARE_FILE_SD_PARMNUMshi*_security_descriptor

 

If you are programming for Active Directory, you may be able to call certain Active Directory Service Interface (ADSI) methods to achieve the same functionality you can achieve by calling the network management share functions. For more information, see IADsFileShare.

If 503 is specified for the level parameter, the remote server specified in the shi503_servername member of the SHARE_INFO_503 structure must have been bound to a transport protocol using the NetServerTransportAddEx function. In the call to NetServerTransportAddEx, either 2 or 3 must have been specified for the level parameter, and the SVTI2_SCOPED_NAME flag must have been specified in the SERVER_TRANSPORT_INFO_2 structure for the transport protocol.

Examples

The following code sample demonstrates how to set the comment associated with a shared resource using a call to the NetShareSetInfo function. To do this, the sample specifies information level 1004 (SHARE_INFO_1004).


#ifndef UNICODE
#define UNICODE
#endif
#include <windows.h>
#include <stdio.h>
#include <lm.h>
#pragma comment(lib, "Netapi32.lib")

void wmain( int argc, TCHAR *argv[ ])
{
   SHARE_INFO_1004 p;
   NET_API_STATUS res;
   DWORD parm_err = 0;

   if(argc<4)
      printf("Usage: SetInfo server share \"remark\"\n");
   else
   {
      //
      // Fill in SHARE_INFO_1004 structure member.
      //
      p.shi1004_remark=argv[3];
      //
      // Call the NetShareSetInfo function,
      //  specifying information level 1004.
      //
      res=NetShareSetInfo(argv[1], argv[2], 1004, (LPBYTE)&p, &parm_err);
      //
      // Display the result of the call.
      //
      if(res==0)
         printf("Remark set.\n");
      else
         printf("Error: %u\tparmerr=%u\n", res, parm_err);
   }
   return;
}


Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Lmshare.h (include Lm.h)

Library

Netapi32.lib

DLL

Netapi32.dll

See also

Network Management Overview
Network Management Functions
Network Share Functions
NetServerTransportAddEx
NetShareGetInfo
SHARE_INFO_1
SHARE_INFO_2
SHARE_INFO_502
SHARE_INFO_503
SHARE_INFO_1004
SHARE_INFO_1005
SHARE_INFO_1006
SHARE_INFO_1501

 

 

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