c++ ip地址和int类型的相互转换
int Int2Ip(UINT uiIp, string& strOut)
{
strOut.clear();
BYTE bN1 = 0, bN2 = 0, bN3 = 0, bN4 = 0;
char arrIp[32] = { 0 };
bN1 = (uiIp)& 0xFF;
bN2 = (uiIp >> 8) & 0xFF;
bN3 = (uiIp >> 16) & 0xFF;
bN4 = (uiIp >> 24) & 0xFF;
sprintf_s(arrIp, sizeof(arrIp), "%d.%d.%d.%d", bN1, bN2, bN3, bN4);
strOut.assign(arrIp);
return TRUE;
}
int ip2int(char* ipStr, UINT& ipInt)
{
if (ipStr == NULL) { return FALSE; }
ipInt = 0;
int tokenInt = 0;
char* token = NULL;
token = strtok(ipStr, ".");
int i = 3;
while (token != NULL) {
tokenInt = atoi(token);
ipInt += tokenInt * pow(256, i);
token = strtok(NULL, ".");
i--;
}
if (i != 0) { return FALSE; }
return TRUE;
}