C 回聲伺服器 5 多程序版本

伺服器和客戶端都是用多程序來接收和傳送資料。

#include #include #include #include #include #include #include #include const int buf_size = 30;

void error_handling(const char *messgae);
void read_childproc(int sig);
// 接收乙個引數，ar**[1]為埠號
int main(int argc, char *argcv) 
act.sa_handler = read_childproc;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
state = sigaction(sigchld, &act, 0);
server_sock = socket(pf_inet, sock_stream, 0);
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = af_inet;
server_addr.sin_addr.s_addr = htonl(inaddr_any);
server_addr.sin_port = htons(atoi(argcv[1]));
if (bind(server_sock, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) 
if (listen(server_sock, 5) == -1) 
while (1)  else 
pid = fork();
if (pid == 0) 
close(client_sock);
puts("client disconnected...");
return 0;
} else 
}close(server_sock);
return 0;
}

#include #include #include #include #include #include const int buf_size = 30;

void error_handling(const char *messgae);
void read_routine(int sock, char *buf);
void write_routine(int sock, char *buf);
// 接收兩個引數，ar**[1]為ip位址，ar**[2]為埠號
int main(int argc, char *ar**) 
sock = socket(pf_inet, sock_stream, 0);
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = af_inet;
server_addr.sin_addr.s_addr = inet_addr(ar**[1]);
server_addr.sin_port = htons(atoi(ar**[2]));
if (connect(sock, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) 
pid = fork();
if (pid == 0)  else 
close(sock);
return 0;
}

#include #include #include #include #include #include #include const int buf_size = 30;

// 處理錯誤
void error_handling(const char *message) 
// 讀取程序退出狀態
void read_childproc(int sig) 
// 客戶端接收資料
void read_routine(int sock, char *buf) 
buf[str_len] = 0;
printf("message from server: %s", buf);
}}// 客戶端傳送資料
void write_routine(int sock, char *buf) 
write(sock, buf, strlen(buf));
}}

《tcp/ip網路程式設計》

C 回聲伺服器 5 多程序版本

伺服器和客戶端都是用多程序來接收和傳送資料。include include include include include include include include const int buf size 30 void error handling const char messgae voi...

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