我是C ++的新手，我想在此链接中测试该示例：
https://msdn.microsoft.com/en-us/library/windows/desktop/aa366058.aspx
当我构建我的项目时，我会遇到很多错误，而且我不知道为什么。
我完全复制了示例代码，并包含必要的标题。
我正在使用Eclipse作为我的IDE。
这是我的代码：
#include <windows.h>
#include <winsock2.h>
#include <iphlpapi.h>
#include <iptypes.h>
#include <stdio.h>
#include <iostream>
#pragma comment(lib, "IPHLPAPI.lib")
#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
/* Note: could also use malloc() and free() */
int __cdecl main(int argc, char **argv)
{
/* Declare and initialize variables */
DWORD dwSize = 0;
DWORD dwRetVal = 0;
unsigned int i = 0;
// Set the flags to pass to GetAdaptersAddresses
ULONG flags = GAA_FLAG_INCLUDE_PREFIX;
// default to unspecified address family (both)
ULONG family = AF_UNSPEC;
LPVOID lpMsgBuf = NULL;
PIP_ADAPTER_ADDRESSES pAddresses = NULL;
ULONG outBufLen = 0;
PIP_ADAPTER_ADDRESSES pCurrAddresses = NULL;
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = NULL;
PIP_ADAPTER_ANYCAST_ADDRESS pAnycast = NULL;
PIP_ADAPTER_MULTICAST_ADDRESS pMulticast = NULL;
IP_ADAPTER_DNS_SERVER_ADDRESS *pDnServer = NULL;
IP_ADAPTER_PREFIX *pPrefix = NULL;
if (argc != 2) {
printf(" Usage: getadapteraddresses family\n");
printf(" getadapteraddresses 4 (for IPv4)\n");
printf(" getadapteraddresses 6 (for IPv6)\n");
printf(" getadapteraddresses A (for both IPv4 and IPv6)\n");
exit(1);
}
if (atoi(argv[1]) == 4)
family = AF_INET;
else if (atoi(argv[1]) == 6)
family = AF_INET6;
outBufLen = sizeof (IP_ADAPTER_ADDRESSES);
pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
// Make an initial call to GetAdaptersAddresses to get the
// size needed into the outBufLen variable
if (GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen)
== ERROR_BUFFER_OVERFLOW) {
FREE(pAddresses);
pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
}
if (pAddresses == NULL) {
printf("Memory allocation failed for IP_ADAPTER_ADDRESSES struct\n");
exit(1);
}
// Make a second call to GetAdapters Addresses to get the
// actual data we want
printf("Memory allocated for GetAdapterAddresses = %d bytes\n", outBufLen);
printf("Calling GetAdaptersAddresses function with family = ");
if (family == AF_INET)
printf("AF_INET\n");
if (family == AF_INET6)
printf("AF_INET6\n");
if (family == AF_UNSPEC)
printf("AF_UNSPEC\n\n");
dwRetVal =
GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen);
if (dwRetVal == NO_ERROR) {
// If successful, output some information from the data we received
pCurrAddresses = pAddresses;
while (pCurrAddresses) {
printf("\tLength of the IP_ADAPTER_ADDRESS struct: %ld\n",
pCurrAddresses->Length);
printf("\tIfIndex (IPv4 interface): %u\n", pCurrAddresses->IfIndex);
printf("\tAdapter name: %s\n", pCurrAddresses->AdapterName);
pUnicast = pCurrAddresses->FirstUnicastAddress;
if (pUnicast != NULL) {
for (i = 0; pUnicast != NULL; i++)
pUnicast = pUnicast->Next;
printf("\tNumber of Unicast Addresses: %d\n", i);
} else
printf("\tNo Unicast Addresses\n");
pAnycast = pCurrAddresses->FirstAnycastAddress;
if (pAnycast) {
for (i = 0; pAnycast != NULL; i++)
pAnycast = pAnycast->Next;
printf("\tNumber of Anycast Addresses: %d\n", i);
} else
printf("\tNo Anycast Addresses\n");
pMulticast = pCurrAddresses->FirstMulticastAddress;
if (pMulticast) {
for (i = 0; pMulticast != NULL; i++)
pMulticast = pMulticast->Next;
printf("\tNumber of Multicast Addresses: %d\n", i);
} else
printf("\tNo Multicast Addresses\n");
pDnServer = pCurrAddresses->FirstDnsServerAddress;
if (pDnServer) {
for (i = 0; pDnServer != NULL; i++)
pDnServer = pDnServer->Next;
printf("\tNumber of DNS Server Addresses: %d\n", i);
} else
printf("\tNo DNS Server Addresses\n");
printf("\tDNS Suffix: %wS\n", pCurrAddresses->DnsSuffix);
printf("\tDescription: %wS\n", pCurrAddresses->Description);
printf("\tFriendly name: %wS\n", pCurrAddresses->FriendlyName);
if (pCurrAddresses->PhysicalAddressLength != 0) {
printf("\tPhysical address: ");
for (i = 0; i < pCurrAddresses->PhysicalAddressLength;
i++) {
if (i == (pCurrAddresses->PhysicalAddressLength - 1))
printf("%.2X\n",
(int) pCurrAddresses->PhysicalAddress[i]);
else
printf("%.2X-",
(int) pCurrAddresses->PhysicalAddress[i]);
}
}
printf("\tFlags: %ld\n", pCurrAddresses->Flags);
printf("\tMtu: %lu\n", pCurrAddresses->Mtu);
printf("\tIfType: %ld\n", pCurrAddresses->IfType);
printf("\tOperStatus: %ld\n", pCurrAddresses->OperStatus);
printf("\tIpv6IfIndex (IPv6 interface): %u\n",
pCurrAddresses->Ipv6IfIndex);
printf("\tZoneIndices (hex): ");
for (i = 0; i < 16; i++)
printf("%lx ", pCurrAddresses->ZoneIndices[i]);
printf("\n");
pPrefix = pCurrAddresses->FirstPrefix;
if (pPrefix) {
for (i = 0; pPrefix != NULL; i++)
pPrefix = pPrefix->Next;
printf("\tNumber of IP Adapter Prefix entries: %d\n", i);
} else
printf("\tNo IP Adapter Prefix entries\n");
printf("\n");
pCurrAddresses = pCurrAddresses->Next;
}
} else {
printf("Call to GetAdaptersAddresses failed with error: %d\n",
dwRetVal);
if (dwRetVal == ERROR_NO_DATA)
printf("\tNo addresses were found for the requested parameters\n");
else {
if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwRetVal, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) & lpMsgBuf, 0, NULL)) {
printf("\tError: %s", lpMsgBuf);
LocalFree(lpMsgBuf);
FREE(pAddresses);
exit(1);
}
}
}
FREE(pAddresses);
return 0;
}
这些是错误：
Info: Internal Builder is used for build
g++ -O0 -g3 -Wall -c -fmessage-length=0 -o "src\\test3.o" "..\\src\\test3.cpp"
..\src\test3.cpp:7:0: warning: ignoring #pragma comment [-Wunknown-pragmas]
#pragma comment(lib, "IPHLPAPI.lib")
..\src\test3.cpp:8:0: warning: ignoring #pragma comment [-Wunknown-pragmas]
#pragma comment(lib, "Ws2_32.lib")
..\src\test3.cpp: In function 'int main(int, char**)':
..\src\test3.cpp:26:19: error: 'GAA_FLAG_INCLUDE_PREFIX' was not declared in this scope
ULONG flags = GAA_FLAG_INCLUDE_PREFIX;
^~~~~~~~~~~~~~~~~~~~~~~
..\src\test3.cpp:33:5: error: 'PIP_ADAPTER_ADDRESSES' was not declared in this scope
PIP_ADAPTER_ADDRESSES pAddresses = NULL; // @suppress("Type cannot be resolved")
^~~~~~~~~~~~~~~~~~~~~
..\src\test3.cpp:36:27: error: expected ';' before 'pCurrAddresses'
PIP_ADAPTER_ADDRESSES pCurrAddresses = NULL;
^~~~~~~~~~~~~~
..\src\test3.cpp:37:5: error: 'PIP_ADAPTER_UNICAST_ADDRESS' was not declared in this scope
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = NULL;
^~~~~~~~~~~~~~~~~~~~~~~~~~~
..\src\test3.cpp:38:5: error: 'PIP_ADAPTER_ANYCAST_ADDRESS' was not declared in this scope
PIP_ADAPTER_ANYCAST_ADDRESS pAnycast = NULL;
^~~~~~~~~~~~~~~~~~~~~~~~~~~
..\src\test3.cpp:39:5: error: 'PIP_ADAPTER_MULTICAST_ADDRESS' was not declared in this scope
PIP_ADAPTER_MULTICAST_ADDRESS pMulticast = NULL;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
..\src\test3.cpp:40:5: error: 'IP_ADAPTER_DNS_SERVER_ADDRESS' was not declared in this scope
IP_ADAPTER_DNS_SERVER_ADDRESS *pDnServer = NULL;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
..\src\test3.cpp:40:36: error: 'pDnServer' was not declared in this scope
IP_ADAPTER_DNS_SERVER_ADDRESS *pDnServer = NULL;
^~~~~~~~~
..\src\test3.cpp:41:5: error: 'IP_ADAPTER_PREFIX' was not declared in this scope
IP_ADAPTER_PREFIX *pPrefix = NULL;
^~~~~~~~~~~~~~~~~
..\src\test3.cpp:41:24: error: 'pPrefix' was not declared in this scope
IP_ADAPTER_PREFIX *pPrefix = NULL;
^~~~~~~
..\src\test3.cpp:56:25: error: 'IP_ADAPTER_ADDRESSES' was not declared in this scope
outBufLen = sizeof (IP_ADAPTER_ADDRESSES);
^~~~~~~~~~~~~~~~~~~~
..\src\test3.cpp:57:5: error: 'pAddresses' was not declared in this scope
pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
^~~~~~~~~~
..\src\test3.cpp:57:41: error: expected primary-expression before ')' token
pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
^
..\src\test3.cpp:61:73: error: 'GetAdaptersAddresses' was not declared in this scope
if (GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen)
^
..\src\test3.cpp:64:45: error: expected primary-expression before ')' token
pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
^
..\src\test3.cpp:73:78: warning: format '%d' expects argument of type 'int', but argument 2 has type 'ULONG {aka long unsigned int}' [-Wformat=]
printf("Memory allocated for GetAdapterAddresses = %d bytes\n", outBufLen);
^
..\src\test3.cpp:83:73: error: 'GetAdaptersAddresses' was not declared in this scope
GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen);
^
..\src\test3.cpp:87:9: error: 'pCurrAddresses' was not declared in this scope
pCurrAddresses = pAddresses;
^~~~~~~~~~~~~~
..\src\test3.cpp:94:13: error: 'pUnicast' was not declared in this scope
pUnicast = pCurrAddresses->FirstUnicastAddress;
^~~~~~~~
..\src\test3.cpp:102:13: error: 'pAnycast' was not declared in this scope
pAnycast = pCurrAddresses->FirstAnycastAddress;
^~~~~~~~
..\src\test3.cpp:110:13: error: 'pMulticast' was not declared in this scope
pMulticast = pCurrAddresses->FirstMulticastAddress;
^~~~~~~~~~
..\src\test3.cpp:167:24: warning: format '%d' expects argument of type 'int', but argument 2 has type 'DWORD {aka long unsigned int}' [-Wformat=]
dwRetVal);
^
..\src\test3.cpp:174:47: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'LPVOID {aka void*}' [-Wformat=]
printf("\tError: %s", lpMsgBuf);
^
..\src\test3.cpp:20:11: warning: unused variable 'dwSize' [-Wunused-variable]
DWORD dwSize = 0;
^~~~~~