Extrange entries in the log

Hi guys,
I've discovered that I've many extrange entries in the NOD32 system log. I've many of them, all are the same, however, I can update my nod perfect.
The entrie: Module: NOD32 Update, Function: gethostbyname, settings: it gives back value: 11001, User: (Appear in blank in difference of the others events)
The above entrie es translate by me, because I'm using the NOD spanish version, here are the "original" entrie:
Hora   Módulo   Suceso   Usuario
16-12-2003 14:44:12   NOD32 Update   Función: gethostbyname, parámetros: , devuelve valor: 11001   
Can anybody help me?
What's happend?, I can update my NOD quickly and without problems.
Here is my NOD32's info:
Información sobre el sistema NOD32 instalado
Versión:   1.584 (20031220)
Fecha:   Sábado, 20 de Diciembre de 2003
Revisión de base de virus:   4117

Información sobre otros componentes de análisis
Versión módulo de heurística avanzada:   1.004 (2003102
Revisión mód. de heurística avanzada:   1037
Versión filtro de Internet:   1.001 (20031104)
Revisión filtro de Internet:   1012
Versión módulo soporte de arch. compr.:   1.008 (20031127)
Revisión mód. soporte de arch. compr.:   1078

Información sobre componentes instalados
NOD32 para Windows NT/2000/XP/2003 - Base
Versión:   2.000.9
NOD32 para Windows NT/2000/XP/2003 - Soporte para Internet
Versión:   2.000.8
NOD32 para Windows NT/2000/XP/2003 - Componentes comunes
Versión:   2.000.9

Información sobre el ordenador
Sistema operativo:   Windows XP
Versión:   5.1.2600 Service Pack 1
Vers. compon. comunes de control:   5.82.2800
RAM:   120 MB
Procesador:   AMD Duron(tm) processor (1101 MHz)

 

Hi sir_carew:
Look at this:

"gethostbyname
The gethostbyname function retrieves host information corresponding to a host name from a host database.

Note The gethostbyname function has been deprecated by the introduction of the getaddrinfo function. Developers creating Windows Sockets 2 applications are urged to use the getaddrinfo function instead of gethostbyname.


struct hostent* FAR gethostbyname(
const char* name
);

Parameters
name
[in] Pointer to the null-terminated name of the host to resolve.
Return Values
If no error occurs, gethostbyname returns a pointer to the hostent structure described above. Otherwise, it returns a null pointer and a specific error number can be retrieved by calling WSAGetLastError.

Error code Meaning
WSANOTINITIALISED A successful WSAStartup call must occur before using this function.
WSAENETDOWN The network subsystem has failed.
WSAHOST_NOT_FOUND Authoritative answer host not found.
WSATRY_AGAIN Nonauthoritative host not found, or server failure.
WSANO_RECOVERY A nonrecoverable error occurred.
WSANO_DATA Valid name, no data record of requested type.
WSAEINPROGRESS A blocking Windows Sockets 1.1 call is in progress, or the service provider is still processing a callback function.
WSAEFAULT The name parameter is not a valid part of the user address space.
WSAEINTR A blocking Windows Socket 1.1 call was canceled through WSACancelBlockingCall.




Remarks
The gethostbyname function returns a pointer to a hostent structure—a structure allocated by Windows Sockets. The hostent structure contains the results of a successful search for the host specified in the name parameter.

The application must never attempt to modify this structure or to free any of its components. Furthermore, only one copy of this structure is allocated per thread, so the application should copy any information it needs before issuing any other Windows Sockets function calls.

The gethostbyname function cannot resolve IP address strings passed to it. Such a request is treated exactly as if an unknown host name were passed. Use inet_addr to convert an IP address string the string to an actual IP address, then use another function, gethostbyaddr, to obtain the contents of the hostent structure.

If null is provided in the name parameter, the returned string is the same as the string returned by a successful gethostname function call.

Note The gethostbyname function does not check the size of the name parameter before passing the buffer. In improperly sized name parameters, heap corruption can occur.

Example Code


The following examples demonstrates the use of the gethostbyname function.



//----------------------
// Declare and initialize variables
hostent* remoteHost;
char* host_name;
unsigned int addr;

//----------------------
// User inputs name of host
printf("Input name of host: ");
host_name = (char*) malloc(sizeof(char*)*16);
fgets(host_name, 16, stdin);

// If the user input is an alpha name for the host, use gethostbyname()
// If not, get host by addr (assume IPv4)
if (isalpha(host_name[0])) { /* host address is a name */
host_name[strlen(host_name)-1] = '\0'; /* NULL TERMINATED */
remoteHost = gethostbyname(host_name);
}
else {
addr = inet_addr(host_name);
remoteHost = gethostbyaddr((char *)&addr, 4, AF_INET);
}

if (WSAGetLastError() != 0) {
if (WSAGetLastError() == 11001)
printf("Host not found...\nExiting.\n");
}
else
printf("error#:%ld\n", WSAGetLastError());

// The remoteHost structure can now be used to
// access information about the host



Requirements
Client: Requires Windows XP, Windows 2000 Professional, Windows NT Workstation, Windows Me, Windows 98, or Windows 95.
Server: Requires Windows Server 2003, Windows 2000 Server, or Windows NT Server.
Header: Declared in Winsock2.h.
Library: Use Ws2_32.lib."


See Also
Winsock Reference, Winsock Functions, getaddrinfo, gethostbyaddr, WSAAsyncGetHostByName, hostent

Best regards.

 

Amigo sir_carew:
Dicho con otras palabras:
Gethostbyname Obtiene la dirección IP correspondiente al nombre de una máquina conectada a Internet.

Saludos desde México.