(tcpmib.h) MIB_TCP6TABLE 结构
MIB_TCP6TABLE结构包含本地计算机上 IPv6 的 TCP 连接表。
语法
typedef struct _MIB_TCP6TABLE {
DWORD dwNumEntries;
MIB_TCP6ROW table[ANY_SIZE];
} MIB_TCP6TABLE, *PMIB_TCP6TABLE;
成员
dwNumEntries
一个 值，该值指定数组中的 TCP 连接数。
table[ANY_SIZE]
包含 TCP 连接条目 的MIB_TCP6ROW 结构的数组。
注解
MIB_TCP6TABLE结构在 Windows Vista 及更高版本上定义。
GetTcp6Table 函数检索本地计算机上的 IPv6 TCP 连接表，并在MIB_TCP6TABLE结构中返回此信息。
MIB_TCP6TABLE 结构中包含一个由MIB_TCP6ROW结构构成的数组。
MIB_TCP6TABLE 结构可能包含用于在 dwNumEntries 成员与表成员中的第一个MIB_TCP6ROW数组条目之间对齐的填充。 表成员中的MIB_TCP6ROW数组条目之间也可能存在对齐的填充。 对 MIB_TCP6ROW 数组条目的任何访问都应假定可能存在填充。
示例
以下示例检索 IPv6 的 TCP 连接表作为 MIB_TCP6TABLE 结构，并打印表示为 MIB_TCP6ROW 结构的每个连接的状态。
#define UNICODE 1
#include <winsock2.h>
#include <ws2tcpip.h>
#include <iphlpapi.h>
#include <stdio.h>
// Need to link with Iphlpapi.lib and Ws2_32.lib
#pragma comment(lib, "iphlpapi.lib")
#pragma comment(lib, "ws2_32.lib")
#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
/* Note: could also use malloc() and free() */
int wmain()
{
// Declare and initialize variables
PMIB_TCP6TABLE pTcpTable;
DWORD dwSize = 0;
DWORD dwRetVal = 0;
wchar_t ipstringbuffer[46];
int i;
pTcpTable = (MIB_TCP6TABLE *) MALLOC(sizeof (MIB_TCP6TABLE));
if (pTcpTable == NULL) {
wprintf(L"Error allocating memory\n");
return 1;
}
dwSize = sizeof (MIB_TCP6TABLE);
// Make an initial call to GetTcp6Table to
// get the necessary size into the dwSize variable
if ((dwRetVal = GetTcp6Table(pTcpTable, &dwSize, TRUE)) ==
ERROR_INSUFFICIENT_BUFFER) {
FREE(pTcpTable);
pTcpTable = (MIB_TCP6TABLE *) MALLOC(dwSize);
if (pTcpTable == NULL) {
wprintf(L"Error allocating memory\n");
return 1;
}
}
// Make a second call to GetTcp6Table to get
// the actual data we require
if ((dwRetVal = GetTcp6Table(pTcpTable, &dwSize, TRUE)) == NO_ERROR) {
wprintf(L"\tNumber of entries: %d\n", (int) pTcpTable->dwNumEntries);
for (i = 0; i < (int) pTcpTable->dwNumEntries; i++) {
wprintf(L"\n\tTCP[%d] State: %ld - ", i,
pTcpTable->table[i].State);
switch (pTcpTable->table[i].State) {
case MIB_TCP_STATE_CLOSED:
wprintf(L"CLOSED\n");
break;
case MIB_TCP_STATE_LISTEN:
wprintf(L"LISTEN\n");
break;
case MIB_TCP_STATE_SYN_SENT:
wprintf(L"SYN-SENT\n");
break;
case MIB_TCP_STATE_SYN_RCVD:
wprintf(L"SYN-RECEIVED\n");
break;
case MIB_TCP_STATE_ESTAB:
wprintf(L"ESTABLISHED\n");
break;
case MIB_TCP_STATE_FIN_WAIT1:
wprintf(L"FIN-WAIT-1\n");
break;
case MIB_TCP_STATE_FIN_WAIT2:
wprintf(L"FIN-WAIT-2 \n");
break;
case MIB_TCP_STATE_CLOSE_WAIT:
wprintf(L"CLOSE-WAIT\n");
break;
case MIB_TCP_STATE_CLOSING:
wprintf(L"CLOSING\n");
break;
case MIB_TCP_STATE_LAST_ACK:
wprintf(L"LAST-ACK\n");
break;
case MIB_TCP_STATE_TIME_WAIT:
wprintf(L"TIME-WAIT\n");
break;
case MIB_TCP_STATE_DELETE_TCB:
wprintf(L"DELETE-TCB\n");
break;
default:
wprintf(L"UNKNOWN dwState value\n");
break;
}
if (InetNtop(AF_INET6, &pTcpTable->table[i].LocalAddr, ipstringbuffer, 46) == NULL)
wprintf(L" InetNtop function failed for local IPv6 address\n");
else
wprintf(L"\tTCP[%d] Local Addr: %s\n", i, ipstringbuffer);
wprintf(L"\tTCP[%d] Local Scope ID: %d \n", i,
ntohl (pTcpTable->table[i].dwLocalScopeId));
wprintf(L"\tTCP[%d] Local Port: %d \n", i,
ntohs((u_short)pTcpTable->table[i].dwLocalPort));
if (InetNtop(AF_INET6, &pTcpTable->table[i].RemoteAddr, ipstringbuffer, 46) == NULL)
wprintf(L" InetNtop function failed for remote IPv6 address\n");
else
wprintf(L"\tTCP[%d] Remote Addr: %s\n", i, ipstringbuffer);
wprintf(L"\tTCP[%d] Remote Scope ID: %d \n", i,
ntohl(pTcpTable->table[i].dwRemoteScopeId));
wprintf(L"\tTCP[%d] Remote Port: %d\n", i,
ntohs((u_short)pTcpTable->table[i].dwRemotePort));
}
} else {
wprintf(L"\tGetTcp6Table failed with %d\n", dwRetVal);
FREE(pTcpTable);
return 1;
}
if (pTcpTable != NULL) {
FREE(pTcpTable);
pTcpTable = NULL;
}
return 0;
}
要求
| 要求 | 值 |
|---|---|
| 最低受支持的客户端 | Windows Vista [仅限桌面应用] |
| 最低受支持的服务器 | Windows Server 2008 [仅限桌面应用] |
| 标头 | tcpmib.h (包括 Iphlpapi.h) |