使用LDAP接口獲取AD域用戶

下面代碼是從<Windows 2000 Active Directory程序設計> 書上敲下來的, 做了一些修改改, 代碼現在能通過編譯, 

但是裏面有些不足之處, 如很多地方沒有判斷是否處理成功(代碼中// TODO: 處), 這樣會導致程序掛掉.

等我有時間調試好程序後再傳上來. 之後我會把書上相關的代碼儘量多敲一些下來方便大家.

/************************************************************************/
/*    Windows2000ActiveDirectory程序設計.pdf P36                        */
/*		LDAPEnumTop.c						*/
/*	作用: 連接到AD域, 並查找頂層對象, 可以通過遞歸此函數列出所有對象*/
/************************************************************************/



#include <Windows.h>
#include <stdio.h>
#include <Winldap.h>

#pragma comment(lib,"wldap32.lib")	// 書上沒有此項, 增加此項才能通過編譯

int main(int argc, char **argv)
{
	PLDAP pldapSession;		// LDAP session data
	PLDAPMessage plmsgSearchResponse;	// server allocated response to search request
	PLDAPMessage plmsgEntry;	// server allocated response to entry request
	PCHAR pszDN;		// LDAP distinguished name stringn 
	PCHAR* ppszDomainDN = NULL;	// Domain DN(string allocated by LDAP library)
	
	// start an LDAP session to nearest LDAP server
	// 不用host 的方法只有Win2000上才能用, 2003 上不能使用
	pldapSession = ldap_init(NULL, LDAP_PORT);	// ldap_init(hostname, port)
	
	// TODO: 判斷成功與否, 當初始化失敗時不應繼續
	
	// authenticate using user's current credentials
	ldap_bind_s(pldapSession, NULL, NULL, LDAP_AUTH_NEGOTIATE);
	
	// serarch the root of the LDAP server
	ldap_search_s(pldapSession,		// session handle
					NULL,	// locaation to start search, NULL specifies top level
					LDAP_SCOPE_BASE,	// search only the root entry (rootDSE)
					NULL,	// search for all objects (only one for the rootDSE)
					NULL,	// no attributes specified, return all attributes
					FALSE,	// return attributes types and values
					&plmsgSearchResponse);	// server allocates and fills with search results
	
	// TODO: 判斷是否成功

	// using the defaultNameingContext attribute, get the distinguished name of the domain
	ppszDomainDN = ldap_get_values(pldapSession, plmsgSearchResponse, 
									"defaultNamingContest");

	// TODO: 判斷是否成功

	// display info 
	printf("Listing objects at %s.\nPress CTRL+C to interrupt.\n", *ppszDomainDN);

	// search first level of root container
	ldap_search_s(pldapSession, // session handle
				  *ppszDomainDN, // location in directory to start search 
				  LDAP_SCOPE_ONELEVEL,	// search first level below the base entry
				  NULL,		// SEARCH FOR ALL objects
				  NULL,		// no attributes spectified, return all attributes
				  FALSE,	// return attributes types and values
				  &plmsgSearchResponse);	// server allocates and fills with search results

	// TODO: 判斷是否成功

	// get the first entry form the search results
	plmsgEntry = ldap_first_entry(pldapSession, plmsgSearchResponse);

	while(plmsgEntry){
		// get the distinguished name of the entry
		pszDN = ldap_get_dn(pldapSession, plmsgEntry);

		// TODO: 判斷是否成功

		// print the DN of the entry
		printf("%s\n", pszDN);

		// get next entry
		plmsgEntry = ldap_next_entry(pldapSession, plmsgEntry);
	}

	// instruct the library toi free the search results
	ldap_value_free(ppszDomainDN);

	// close the session
	ldap_unbind(pldapSession);

	return 0;
}