• TCP/IP 错误号

    下表列出了 Linux， UNIX 系统上的常见 TCP/IP 错误符号 (errnos)。

     Linux 操作系统，可在 /usr/include/asm/errno.h ，或/usr/include/asm-generic/errno-base.h文件中找到 TCP/IP 错误的完整列表。

    表 1. TCP/IP 错误号

    错误代码

    Linux 错误号

    描述

    EINTR4指定的函数被信号中断。
    EBADF9套接字错误。 套接字可能已损坏。
    EAGAIN11资源暂时不可用。
    EFAULT14地址错误。

    在连接时，使用了错误地址。

    在接收时，数据被定向到不存在的或受保护的进程地址空间部分。 缓冲区无效。

    EBUSY16资源正忙。
    EINVAL22传递至指定函数或套接字的无效自变量已关闭。 如果存在内存覆盖或缓存溢出问题，那么可能返回 EINVAL 错误。
    ENFILE23系统中打开的文件太多。
    EMFILE24每进程文件描述符表已满。 已超出进程的文件描述符/套接字数。
    ENOSPC28设备或系统表上未余下任何空间。
    EPIPE32管道中断。
    EWOULDBLOCK11在连接函数上，分配给 TCP/UDP 临时端口的范围已用完。 （某些操作系统将同一错误返回为 EAGAIN。）
    ENOTSOCK88对非套接字执行了套接字操作。
    ENOPROTOOPT92选项未知。
    EADDRINUSE98已经在使用指定的地址。 建立该连接的先前进程可能异常终止或未正确清除。
    EADDRNOTAVAIL99不能从本地系统获取指定的主机名或 IP 地址。
    ENETDOWN100网络已停止。
    ENETUNREACH101没有任何至网络或主机的路由可用。
    ENETRESET102网络在重置时删除了该连接。
    ECONNRESET104合作伙伴已重置连接。
    ENOBUFS105系统中没有足够的内存或资源可用来完成调用。
    EISCONN106已连接该套接字。
    ENOTCONN107未连接套接字。
    ETIMEDOUT110连接已超时。
    ECONNREFUSED111连接被拒绝。 如果您尝试连接至数据库，请检查服务器上的数据库管理器和 TCP/IP 协议支持是否已成功启动。

    如果指定了 SOCKS 协议支持，那么还必须确保 SOCKS 服务器上的 TCP/IP 协议支持已成功启动。

    EHOSTDOWN112主机已当机。
    EHOSTUNREACH113没有任何至主机的可用路由。
    1. #include 
    2.  
    3. #define EDEADLK         35      /* Resource deadlock would occur */
    4. #define ENAMETOOLONG    36      /* File name too long */
    5. #define ENOLCK          37      /* No record locks available */
    6.  
    7. /*
    8.  * This error code is special: arch syscall entry code will return
    9.  * -ENOSYS if users try to call a syscall that doesn't exist.  To keep
    10.  * failures of syscalls that really do exist distinguishable from
    11.  * failures due to attempts to use a nonexistent syscall, syscall
    12.  * implementations should refrain from returning -ENOSYS.
    13.  */
    14. #define ENOSYS          38      /* Invalid system call number */
    15.  
    16. #define ENOTEMPTY       39      /* Directory not empty */
    17. #define ELOOP           40      /* Too many symbolic links encountered */
    18. #define EWOULDBLOCK     EAGAIN  /* Operation would block */
    19. #define ENOMSG          42      /* No message of desired type */
    20. #define EIDRM           43      /* Identifier removed */
    21. #define ECHRNG          44      /* Channel number out of range */
    22. #define EL2NSYNC        45      /* Level 2 not synchronized */
    23. #define EL3HLT          46      /* Level 3 halted */
    24. #define EL3RST          47      /* Level 3 reset */
    25. #define ELNRNG          48      /* Link number out of range */
    26. #define EUNATCH         49      /* Protocol driver not attached */
    27. #define ENOCSI          50      /* No CSI structure available */
    28. #define EL2HLT          51      /* Level 2 halted */
    29. #define EBADE           52      /* Invalid exchange */
    30. #define EBADR           53      /* Invalid request descriptor */
    31. #define EXFULL          54      /* Exchange full */
    32. #define ENOANO          55      /* No anode */
    33. #define EBADRQC         56      /* Invalid request code */
    34. #define EBADSLT         57      /* Invalid slot */
    35.  
    36. #define EDEADLOCK       EDEADLK
    37.  
    38. #define EBFONT          59      /* Bad font file format */
    39. #define ENOSTR          60      /* Device not a stream */
    40. #define ENODATA         61      /* No data available */
    41. #define ETIME           62      /* Timer expired */
    42. #define ENOSR           63      /* Out of streams resources */
    43. #define ENONET          64      /* Machine is not on the network */
    44. #define ENOPKG          65      /* Package not installed */
    45. #define EREMOTE         66      /* Object is remote */
    46. #define ENOLINK         67      /* Link has been severed */
    47. #define EADV            68      /* Advertise error */
    48. #define ESRMNT          69      /* Srmount error */
    49. #define ECOMM           70      /* Communication error on send */
    50. #define EPROTO          71      /* Protocol error */
    51. #define EMULTIHOP       72      /* Multihop attempted */
    52. #define EDOTDOT         73      /* RFS specific error */
    53. #define EBADMSG         74      /* Not a data message */
    54. #define EOVERFLOW       75      /* Value too large for defined data type */
    55. #define ENOTUNIQ        76      /* Name not unique on network */
    56. #define EBADFD          77      /* File descriptor in bad state */
    57. #define EREMCHG         78      /* Remote address changed */
    58. #define ELIBACC         79      /* Can not access a needed shared library */
    59. #define ELIBBAD         80      /* Accessing a corrupted shared library */
    60. #define ELIBSCN         81      /* .lib section in a.out corrupted */
    61. #define ELIBMAX         82      /* Attempting to link in too many shared libraries */
    62. #define ELIBEXEC        83      /* Cannot exec a shared library directly */
    63. #define EILSEQ          84      /* Illegal byte sequence */
    64. #define ERESTART        85      /* Interrupted system call should be restarted */
    65. #define ESTRPIPE        86      /* Streams pipe error */
    66. #define EUSERS          87      /* Too many users */
    67. #define ENOTSOCK        88      /* Socket operation on non-socket */
    68. #define EDESTADDRREQ    89      /* Destination address required */
    69. #define EMSGSIZE        90      /* Message too long */
    70. #define EPROTOTYPE      91      /* Protocol wrong type for socket */
    71. #define ENOPROTOOPT     92      /* Protocol not available */
    72. #define EPROTONOSUPPORT 93      /* Protocol not supported */
    73. #define ESOCKTNOSUPPORT 94      /* Socket type not supported */
    74. #define EOPNOTSUPP      95      /* Operation not supported on transport endpoint */
    75. #define EPFNOSUPPORT    96      /* Protocol family not supported */
    76. #define EAFNOSUPPORT    97      /* Address family not supported by protocol */
    77. #define EADDRINUSE      98      /* Address already in use */
    78. #define EADDRNOTAVAIL   99      /* Cannot assign requested address */
    79. #define ENETDOWN        100     /* Network is down */
    80. #define ENETUNREACH     101     /* Network is unreachable */
    81. #define ENETRESET       102     /* Network dropped connection because of reset */
    82. #define ECONNABORTED    103     /* Software caused connection abort */
    83. #define ECONNRESET      104     /* Connection reset by peer */
    84. #define ENOBUFS         105     /* No buffer space available */
    85. #define EISCONN         106     /* Transport endpoint is already connected */
    86. #define ENOTCONN        107     /* Transport endpoint is not connected */
    87. #define ESHUTDOWN       108     /* Cannot send after transport endpoint shutdown */
    88. #define ETOOMANYREFS    109     /* Too many references: cannot splice */
    89. #define ETIMEDOUT       110     /* Connection timed out */
    90. #define ECONNREFUSED    111     /* Connection refused */
    91. #define EHOSTDOWN       112     /* Host is down */
    92. #define EHOSTUNREACH    113     /* No route to host */
    93. #define EALREADY        114     /* Operation already in progress */
    94. #define EINPROGRESS     115     /* Operation now in progress */
    95. #define ESTALE          116     /* Stale file handle */
    96. #define EUCLEAN         117     /* Structure needs cleaning */
    97. #define ENOTNAM         118     /* Not a XENIX named type file */
    98. #define ENAVAIL         119     /* No XENIX semaphores available */
    99. #define EISNAM          120     /* Is a named type file */
    100. #define EREMOTEIO       121     /* Remote I/O error */
    101. #define EDQUOT          122     /* Quota exceeded */
    102.  
    103. #define ENOMEDIUM       123     /* No medium found */
    104. #define EMEDIUMTYPE     124     /* Wrong medium type */
    105. #define ECANCELED       125     /* Operation Canceled */
    106. #define ENOKEY          126     /* Required key not available */
    107. #define EKEYEXPIRED     127     /* Key has expired */
    108. #define EKEYREVOKED     128     /* Key has been revoked */
    109. #define EKEYREJECTED    129     /* Key was rejected by service */
    110.  
    111. /* for robust mutexes */
    112. #define EOWNERDEAD      130     /* Owner died */
    113. #define ENOTRECOVERABLE 131     /* State not recoverable */
    114.  
    115. #define ERFKILL         132     /* Operation not possible due to RF-kill */
    116.  
    117. #define EHWPOISON       133     /* Memory page has hardware error */
    118.  
    119. #endif

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  • 原文地址：https://blog.csdn.net/qq_34999565/article/details/128187636