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正在用C语言编写IRC客户端。并在连接到serwer时遇到了一些问题。 我碰到下面当我运行程序：如何连接到IRC服务器/解析C语言（提供代码）的IRC MSG/PING-PONG处理
输出
Set Fully Qualified host Domain Name(human readable): ::automaticaly provided::
Set the port number of the server You want to connect to: ::automaticaly provided::
Destination server IP: 88.190.23.245
Socket descriptor: 3
Connection has been successfully established
Peer's IP is: 88.190.23.245
Peer's port is: 5190
:irc2.gbatemp.net NOTICE AUTH :*** Looking up your hostname...
:irc2.gbatemp.net NOTICE AUTH :*** Found your hostname (cached)
Type Your nick name: ::automaticaly provided::
Type Your user name: ::automaticaly provided::
(10-20 seconds break here and than what follows down here)
ERROR :Closing Link: thisIsMyNickNameXXXa[85.221.165.54] (Ping timeout)
temp.net NOTICE AUTH :*** Found your hostname (cached)
ERROR :Closing Link: thisIsMyNickNameXXXa[85.221.165.54] (Ping timeout)
temp.net NOTICE AUTH :*** Found your hostname (cached)
ERROR :Closing Link: thisIsMyNickNameXXXa[85.221.165.54] (Ping timeout)
temp.net NOTICE AUTH :*** Found your hostname (cached)
.......
.............
...................
========================= ====================================
::automaticaly provided:: - 表示由程序传递给现在，所以我不必输入很多次。
btw。我连接到irc.gbatemp.net:5190（无需密码，只要我担心）
在提供必要的数据10-20秒后发生中断（我在OUTPUT部分中指定）并且ERROR temp.net部分如下广告infinitum（我用点划线）
所以问题的主要部分是我应该如何以及何时发送PONG消息来响应PING？我做了我的研究，但仍然无法做到。为什么不能在STDOUT中看到PING消息？ （1）循环还不完美，但我认为它是s（012）（012）（012）（012）代码为另一个主题）代码波纹管：
int readReady=0;
int writeReady=0;
pid_t pID;
char buf[1024]; //I/O buffer (?)
pid_t sID;
char *NICK = "NICK thisIsMyNickNameXXXa\n\r";
char *USER = "USER tomaazrxtc 8 * :nameandsurname";
char ping[512];
char *change;
pID=fork();
if(pID < 0){
//failed to execute fork()
perror("Error while forking");
getchar();getchar();
exit(1);
}
if(pID > 0){
exit(0);
}
//child down here
//setting new session
sID = setsid();
if(sID < 0){
perror("Error while setting new session");
getchar();getchar();
exit(1);
}
//---------receiving NOTICE AUTH :*** part-------------------------------
if(recv(sockfd, buf, 1024,0)>0){
printf(buf);
}
else{
perror("Error while receiving data");
}
//---------providing and sending NICK and USERNAME-----------------------
printf("Type Your nick name: \n");
//scanf(nickname); pamietaj zeby zapewnic podawanie tylko nicku, a format handler zrobic osobno
send(sockfd, NICK, strlen(NICK), 0);
printf("Type Your user name: \n");
//scanf(username); pamietaj zeby zapewnic podawanie tylko nicku, a format handler zrobic osobno
send(sockfd, USER, strlen(USER), 0);
//--------Shoudnt I receive PING message just here ?????-----------------
recv(sockfd, buf, strlen(buf), 0);
printf(buf);
//--------PONG'ing function which I havent tested yet since i cant see PING message----
recv(sockfd, ping, 512,0);
if(strstr(ping, "PING")){
change = strstr(ping, "PING");
strncpy(change, "PONG", 4);
send(sockfd, ping, 512, 0);
}
//-------------------------------------------------------------------------
while(1){
//sleep(1);
if((readReady = readReadiness(sockfd))==0){ //nothing to recv
if((writeReady = writeReadiness(sockfd))>0){ //sending is possible
scanf(buf);
send(sockfd, buf, strlen(buf), 0);
continue;
}
else
continue; //if there s no data to read and cant send (is it even possible?)
}
else{ //if there s some data to recv() on the socket buffer
recv(sockfd, buf, strlen(buf), 0);
printf(buf);
continue;
}
}
//--------------------------------------------------------------------------
好的。我将在未来为其他人留下问题并提供答案。这是琐事。
我刚刚在USER变量的末尾添加了\ n \ r（就像在NICK字符串中一样）。 连接就像一个魅力！
在最后：））