悠悠博客 (讨论区存档) — 技术永无止尽，未来事在人为

FTP连接10061错误

自己写的一个FTP连接代码,连接时出现 10061错误, 就是连接被积极的拒绝了.
可是我用Windows上的FTP命令行连接是可以连接上的.这是怎么回事呢?
端口是21,主机名用的是 127.0.0.1
自己在自己机子上装的一个FTP服务器.

[table=95%][tr][td][font=FixedSys][color=#000000][color=#0000ff]int[/color] CWLSocket[color=#0000cc]:[/color][color=#0000cc]:[/color][color=#ff0000]Connect[/color][color=#0000cc]([/color][color=#0000ff]const[/color] [color=#0000ff]char[/color][color=#0000cc]*[/color] szAddr[color=#0000cc],[/color] [color=#0000ff]int[/color] nPort[color=#0000cc],[/color] [color=#0000ff]int[/color] timeout [color=#ff9900]/*= 0*/[/color][color=#0000cc],[/color] [color=#0000ff]int[/color] nReconnectTimes [color=#ff9900]/* = 1 */[/color][color=#0000cc])[/color]
[color=#0000cc]{[/color]
    [color=#ff0000]Socket[/color][color=#0000cc]([/color][color=#ff0000]AF_INET[/color][color=#0000cc],[/color] [color=#ff0000]SOCK_STREAM[/color][color=#0000cc],[/color] 0[color=#0000cc])[/color][color=#0000cc];[/color]
    [color=#ff0000]assert[/color][color=#0000cc]([/color] m_socket [color=#0000cc]![/color][color=#0000cc]=[/color] INVALID_SOCKET [color=#0000cc])[/color][color=#0000cc];[/color]
    [color=#0000ff]if[/color] [color=#0000cc]([/color] timeout [color=#0000cc]>[/color] 0 [color=#0000cc])[/color]
    [color=#0000cc]{[/color]
        [color=#ff0000]setsockopt[/color][color=#0000cc]([/color]m_socket[color=#0000cc],[/color] SOL_SOCKET[color=#0000cc],[/color] SO_SNDTIMEO[color=#0000cc],[/color] [color=#0000cc]([/color][color=#0000ff]char[/color] [color=#0000cc]*[/color][color=#0000cc])[/color][color=#0000cc]&[/color]timeout[color=#0000cc],[/color] [color=#0000ff]sizeof[/color][color=#0000cc]([/color][color=#0000ff]int[/color][color=#0000cc])[/color][color=#0000cc])[/color][color=#0000cc];[/color]
      [color=#ff0000]setsockopt[/color][color=#0000cc]([/color]m_socket[color=#0000cc],[/color] SOL_SOCKET[color=#0000cc],[/color] SO_RCVTIMEO[color=#0000cc],[/color] [color=#0000cc]([/color][color=#0000ff]char[/color] [color=#0000cc]*[/color][color=#0000cc])[/color][color=#0000cc]&[/color]timeout[color=#0000cc],[/color] [color=#0000ff]sizeof[/color][color=#0000cc]([/color][color=#0000ff]int[/color][color=#0000cc])[/color][color=#0000cc])[/color][color=#0000cc];[/color]
  [color=#0000cc]}[/color]
    [color=#0000ff]int[/color] nReturn [color=#0000cc]=[/color] SOCKET_ERROR[color=#0000cc];[/color]
    [color=#0000ff]int[/color] nConnectTimes [color=#0000cc]=[/color] 0[color=#0000cc];[/color]
    [color=#ff0000]sockaddr_in[/color] socketaddr[color=#0000cc];[/color]
    [color=#ff0000]memset[/color][color=#0000cc]([/color][color=#0000cc]&[/color]socketaddr[color=#0000cc],[/color] [color=#ff00ff]'/0'[/color][color=#0000cc],[/color] [color=#0000ff]sizeof[/color][color=#0000cc]([/color][color=#ff0000]sockaddr_in[/color][color=#0000cc])[/color][color=#0000cc])[/color][color=#0000cc];[/color]
    socketaddr[color=#0000cc].[/color]sin_family [color=#0000cc]=[/color] [color=#ff0000]AF_INET[/color][color=#0000cc];[/color]
    socketaddr[color=#0000cc].[/color]sin_port [color=#0000cc]=[/color] nPort[color=#0000cc];[/color]
    socketaddr[color=#0000cc].[/color]sin_addr[color=#0000cc].[/color]s_addr [color=#0000cc]=[/color] inet_addr[color=#0000cc]([/color]szAddr[color=#0000cc])[/color][color=#0000cc];[/color]
    [color=#0000ff]while[/color] [color=#0000cc]([/color]nConnectTimes [color=#0000cc]<[/color] nReconnectTimes [color=#0000cc]&[/color][color=#0000cc]&[/color] SOCKET_ERROR [color=#0000cc]=[/color][color=#0000cc]=[/color] nReturn[color=#0000cc])[/color]
    [color=#0000cc]{[/color]
        nReturn [color=#0000cc]=[/color] [color=#ff0000]connect[/color][color=#0000cc]([/color]m_socket[color=#0000cc],[/color] [color=#0000cc]([/color][color=#0000ff]struct[/color] [color=#ff0000]sockaddr[/color] [color=#0000cc]*[/color][color=#0000cc])[/color][color=#0000cc]&[/color]socketaddr[color=#0000cc],[/color] [color=#0000ff]sizeof[/color][color=#0000cc]([/color][color=#0000ff]struct[/color] [color=#ff0000]sockaddr[/color][color=#0000cc])[/color][color=#0000cc])[/color][color=#0000cc];[/color]
        [color=#0000ff]if[/color] [color=#0000cc]([/color]nReturn [color=#0000cc]![/color][color=#0000cc]=[/color] SOCKET_ERROR[color=#0000cc])[/color]
        [color=#0000cc]{[/color]
            [color=#0000ff]return[/color] nReturn[color=#0000cc];[/color]
        [color=#0000cc]}[/color]
        [color=#0000ff]else[/color]
            nConnectTimes[color=#0000cc]+[/color][color=#0000cc]+[/color][color=#0000cc];[/color]
    [color=#0000cc]}[/color]
[color=#0000cc]#[/color][color=#ff0000]ifdef[/color] WIN32
    [color=#ff0000]cout[/color] [color=#0000cc]<[/color][color=#0000cc]<[/color] [color=#0000cc]:[/color][color=#0000cc]:[/color]WSAGetLastError[color=#0000cc]([/color][color=#0000cc])[/color] [color=#0000cc]<[/color][color=#0000cc]<[/color] [color=#ff0000]endl[/color][color=#0000cc];[/color]
[color=#0000cc]#[/color][color=#ff0000]endif[/color]
    [color=#0000ff]return[/color] SOCKET_ERROR[color=#0000cc];[/color]
[color=#0000cc]}[/color][/color][/font][/td][/tr][/table]