枚举登陆用户源代码

2009-3-25 11:17 524 0

摘要: #ifndef UNICODE#define UNICODE#endif #include <stdio.h>#include <assert.h>#includ...

关键词： nbsp nStatus DWORD pBuf pszServerName NULL include dwTotalCount NetUserEnum ERROR

#ifndef UNICODE#define UNICODE#endif #include <stdio.h>#include <assert.h>#include <windows.h> #include <lm.h> int wmain(int argc, wchar_t *argv[]){ LPUSER_INFO_0 pBuf = NULL; LPUSER_INFO_0 pTmpBuf; DWORD dwLevel = 0; DWORD dwPrefMaxLen = MAX_PREFERRED_LENGTH; DWORD dwEntriesRead = 0; DWORD dwTotalEntries = 0; DWORD dwResumeHandle = 0; DWORD i; DWORD dwTotalCount = 0; NET_API_STATUS nStatus; LPTSTR pszServerName = NULL; if (argc > 2) { fwprintf(stderr, L"Usage: %s [\\\\ServerName]\n", argv[0]); return 1; } // The server is not the default local computer. // if (argc == 2) pszServerName = argv[1]; wprintf(L"\nUser account on %s: \n", pszServerName); // // Call the NetUserEnum function, specifying level 0; // enumerate global user account types only. // do // begin do { nStatus = NetUserEnum(pszServerName, dwLevel, FILTER_NORMAL_ACCOUNT, // global users (LPBYTE*)&pBuf, dwPrefMaxLen, &dwEntriesRead, &dwTotalEntries, &dwResumeHandle); // // If the call succeeds, // if ((nStatus == NERR_Success) || (nStatus == ERROR_MORE_DATA)) { if ((pTmpBuf = pBuf) != NULL) { // // Loop through the entries. // for (i = 0; (i < dwEntriesRead); i++) { assert(pTmpBuf != NULL); if (pTmpBuf == NULL) { fprintf(stderr, "An access violation has occurred\n"); break; } // // Print the name of the user account. // wprintf(L"\t-- %s\n", pTmpBuf->usri0_name); pTmpBuf++; dwTotalCount++; } } } // // Otherwise, print the system error. // else fprintf(stderr, "A system error has occurred: %d\n", nStatus); // // Free the allocated buffer. // if (pBuf != NULL) { NetApiBufferFree(pBuf); pBuf = NULL; } } // Continue to call NetUserEnum while // there are more entries. // while (nStatus == ERROR_MORE_DATA); // end do // // Check again for allocated memory. // if (pBuf != NULL) NetApiBufferFree(pBuf); // // Print the final count of users enumerated. // fprintf(stderr, "\nTotal of %d entries enumerated\n", dwTotalCount); return 0;}

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