C++ unix smtp客戶端

我正在unix機器上使用C++製作一個smtp客戶端。我能夠收到運行程序的電子郵件，但在從服務器收到的消息之間缺少客戶端的輸出。我真的可以用一些幫助來閱讀這些消息。C++ unix smtp客戶端

我傳遞：服務器名稱，來自電子郵件，目標電子郵件，主題和消息。

write (socketNO, "HELO ", 5); 
    write (socketNO, argv[1], strlen(argv[1])); 
    write (socketNO, " ", 1); 
    write (socketNO, "\n", 1); 

    /* Address the mail is coming from */ 
    write (socketNO, "MAIL FROM:<", 11); 
    write (socketNO, argv[2], strlen(argv[2])); 
    write (socketNO, ">", 1); 
    write (socketNO, "\n", 1); 

    /* Address the mail is going to */ 
    write (socketNO, "RCPT TO:<", 9); 
    write (socketNO, argv[3], strlen(argv[3])); 
    write (socketNO, ">", 1); 
    write (socketNO, "\n", 1); 

    /* Says you are about to start the message & waits for servers OK */ 
    write (socketNO, "DATA", 5); 
    write (socketNO, "\n", 1); 

    /* Writes the subject and the message */ 
    write (socketNO, "SUBJECT: ", 9); 
    write (socketNO, argv[4], strlen(argv[4])); 
    write (socketNO, "\n", 1); 
    write (socketNO, "\n", 1); 
    write (socketNO, argv[5], strlen(argv[5])); 
    write (socketNO, "\n", 1); 
    write (socketNO, ".", 1); 
    write (socketNO, "\n", 1); 

    /* Quits the connection */ 
    write (socketNO, "QUIT", 4); 

    int response = read (socketNO, fromServer, 512); 
    close(socketNO); 


    cout << response << " " << fromServer << endl;

這裏是我的輸出

~$ client smtp.xxx.xxx [email protected] [email protected] hi hello 
hostname is smtp.xxx.xxx 
hello 

311 220 smtp.xxx.xxx ESMTP Sendmail 8.54.4/8.14.4; Fri, 13 Nov 2015 10:46:23 -0500 
250 smtp.xxx.xxx Hello unix.xxx.xxx [128.16.3.12], pleased to meet you 
250 2.1.0 <[email protected]>... Sender ok 
250 2.1.5 <[email protected]>... Recipient ok 
354 Enter mail, end with "." on a line by itself

應該如何看待

~$ client smtp.xxx.xxx [email protected] [email protected] hi hello 
    hostname is smtp.xxx.xxx 
    hello 

    311 220 smtp.xxx.xxx ESMTP Sendmail 8.54.4/8.14.4; Fri, 13 Nov 2015 10:46:23 -0500 
    HELO smtp.xxx.xxx 
    250 smtp.xxx.xxx Hello unix.xxx.xxx [128.16.3.12], pleased to meet you 
    MAIL FROM:<[email protected]> 
    250 2.1.0 <[email protected]>... Sender ok 
    RCPT TO:<[email protected]> 
    250 2.1.5 <[email protected]>... Recipient ok 
    DATA 
    354 Enter mail, end with "." on a line by itself 
    SUBJECT: hi 
    hello 
    . 
    QUIT

來源

2015-11-14 brunzzy

好的，但問題是什麼？ – vladon

如何閱讀正在寫入服務器的命令..我通過編輯進行了更多澄清......對於模糊性的道歉 – brunzzy

自己寫的功能，例如：

ssize_t write_and_echo(int fd, const void *buf, size_t count) 
{ 
    printf("%.*s", count, buf); 
    return write(fd, buf, count); 
}

來源

2015-11-14 22:06:23 vladon

C++ unix smtp客戶端

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