本机名、IP、MAC都是一些比较常用网络参数，怎么用C/C++获取呢？
研究了两三个小时...
需要说明的都在代码注释里
1 #include <stdio.h> 2 #include <Windows.h> 3 #include <IPHlpApi.h> 4 5 #pragma comment(lib,"ws2_32.lib") // Socket静态库,取本机IP用 6 #pragma comment(lib,"IPHlpApi.lib") // 发送ARP报文要用的静态库,取MAC用 7 8 /* 9 取主机名 10 成功返回主机名,失败返回NULL. 11 */ 12 char *MyGetHostName(void); 13 14 /* 15 取本机IP 16 成功返回本机IP,失败返回NULL. 17 */ 18 char *MyGetHostIp(void); 19 20 /* 21 取本机MAC 22 成功返回本机MAC,失败返回NULL. 23 */ 24 char *MyGetHostMac(void); 25 26 int main(void) 27 { 28 char *lpName = NULL; 29 char *lpIp = NULL; 30 char *lpMac = NULL; 31 32 lpName = MyGetHostName(); 33 lpIp = MyGetHostIp(); 34 lpMac = MyGetHostMac(); 35 printf("PCName : %s ", lpName); 36 printf("IPAddr : %s ", lpIp); 37 printf("M A C : %s ", lpMac); 38 39 free(lpName); 40 free(lpIp); 41 free(lpMac); 42 system("pause"); 43 return 0; 44 } 45 46 char *MyGetHostName(void) 47 { 48 char *lpName = NULL; 49 DWORD dwLen = 0; 50 51 GetComputerName(NULL, &dwLen); 52 lpName = (char *)malloc(dwLen); 53 memset(lpName, 0, dwLen); 54 GetComputerName(lpName, &dwLen); 55 return (lpName ? lpName : NULL); 56 } 57 58 char *MyGetHostIp(void) 59 { 60 char *ip = NULL; 61 WSADATA wsaData = { 0 }; 62 struct hostent *phostinfo = NULL; 63 64 ip = (char *)malloc(sizeof(char)* 16); 65 memset(ip, 0, 16); 66 WSAStartup(MAKEWORD(2, 2), &wsaData); 67 phostinfo = gethostbyname(""); 68 lstrcpyn(ip, inet_ntoa(*(struct in_addr *)(*phostinfo->h_addr_list)), 16); 69 WSACleanup(); 70 if (ip) 71 { 72 return ip; 73 } 74 else { 75 free(ip); 76 return NULL; 77 } 78 } 79 80 char *MyGetHostMac(void) 81 { 82 IPAddr ip = inet_addr(MyGetHostIp()); 83 PVOID *pMac = NULL; 84 ULONG MacAddr[2] = { 0 }; // Mac地址长度6字节 85 ULONG uMacSize = 6; 86 87 // 通过ARP报文响应获取MAC地址 88 DWORD dwRet = SendARP(ip, 0, &MacAddr, &uMacSize); 89 if (dwRet == NO_ERROR) 90 { 91 BYTE *bPhyAddr = (BYTE *)MacAddr; 92 93 if (uMacSize) 94 { 95 char *sMac = (char *)malloc(sizeof(char)* 18); 96 int n = 0; 97 98 memset(sMac, 0, 18); 99 sprintf_s(sMac, (size_t)18, "%.2X-%.2X-%.2X-%.2X-%.2X-%.2X", (int)bPhyAddr[0], (int)bPhyAddr[1], (int)bPhyAddr[2], (int)bPhyAddr[3], (int)bPhyAddr[4], (int)bPhyAddr[5]); 100 return sMac; 101 } 102 else 103 { 104 printf("Mac地址获取失败！ "); 105 } 106 } 107 else 108 { 109 printf("ARP报文发送失败:%d ",dwRet); 110 } 111 return NULL; 112 }
效果图：
