int main() {
//The following code are provided by the Lab Slides or from TA
int serverSockFd, clientSockFd, pid;
socklen_t serverLen, clientLen;
struct sockaddr_in serverAddress;
struct sockaddr_in clientAddress;
struct sockaddr_storage addr;
serverLen = sizeof addr;
serverSockFd = socket(AF_INET, SOCK_STREAM, 0);
serverAddress.sin_family = AF_INET;
serverAddress.sin_addr.s_addr = htonl(INADDR_ANY);
serverAddress.sin_port = htons(SERVER_PORT_NUM);
serverLen = sizeof(serverAddress);
clientLen = sizeof(clientAddress);
bind(serverSockFd, (struct sockaddr *)&serverAddress, serverLen);
listen(serverSockFd, BACKLOGS);
while (TRUE) {
printf("\nWaiting for clients...\n");
clientSockFd = accept(serverSockFd, (struct sockaddr *)&clientAddress, &clientLen);
//TEST FOR GET IP of the clients
getpeername(clientSockFd, (struct sockaddr*)&addr, &serverLen);
struct sockaddr_in *s = (struct sockaddr_in *)&addr;
inet_ntop(AF_INET, &s->sin_addr, ipstr, sizeof ipstr);
printf("\nCustomer IP: %s\n", ipstr);
//TEST FOR GET IP of the clients
if (clientSockFd == -1) { //check client available
printf("\nAccept Error\n");
exit(1);
}
pid = fork(); //create threads
printf("\nCreating new thread...\n");
if (pid < 0)
printf("\nFork Error\n");
if (pid == 0) {
close(serverSockFd);
workout(clientSockFd); //target thread workout
exit(0);
}
else close(clientSockFd); //just kick out
}
close(serverSockFd); //usually never reach here
return 0;
}
int main(int argc, char *argv[])
{
double wores;
DWORD res;
int i;
if (argc <= 1)
{
CUIPutS(
"参数:表达式1 [表达式2] [表达式3] ...\n"
"表达式为标准的数学表达式\n"
"可使用括号，如(1+2)*abs(-3)或sin(3.14)\n"
"可使用二元运算：加+ 减- 乘* 除/ 整数模% 实数模# 幂^\n"
"可使用函数如下：\n"
"绝对值abs 反余弦acs 反正弦asn 反正切atn 余弦cos 双曲余弦ch e的幂exp\n"
"常用对数lg 自然对数ln 正弦sin 双曲正弦sh 开方sqr 正切tan 双曲正切th\n"
);
return NO_ERROR;
}
for (i = 1; i < argc; i++)
{
char buf[128], *bufp;
bufp = strcpy(buf, argv[i]) - 1;
if ((res = workout(argv[i], NULL, NULL, 0, &wores)) != WOERR_NOERR)
{
bufp = strcpy(bufp, "无法计算:") - 1;
bufp = strcpy(bufp, WoErrStr[res]) - 1;
strcpy(bufp, "\n");
}
else
{
bufp = strcpy(bufp, " = ") - 1;
bufp = ftoa(bufp, wores);
strcpy(bufp, "\n");
}
CUIPutS(buf);
}
return NO_ERROR;
}