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  2. Not a typewriter - Wikipedia

    en.wikipedia.org/wiki/Not_a_typewriter

    [5] Because ioctl is now supported on other devices than terminals, some systems display a different message such as "Inappropriate ioctl for device" instead. [ 6 ] [ 7 ]

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2] A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD. A user agent may automatically redirect a request.

  4. ioctl - Wikipedia

    en.wikipedia.org/wiki/Ioctl

    In computing, ioctl (an abbreviation of input/output control) is a system call for device-specific input/output operations and other operations which cannot be expressed by regular file semantics. It takes a parameter specifying a request code; the effect of a call depends completely on the request code. Request codes are often device-specific.

  5. errno.h - Wikipedia

    en.wikipedia.org/wiki/Errno.h

    Invalid cross-device link ENODEV: 19: No such device ENOTDIR: 20: Not a directory EISDIR: 21: Is a directory EINVAL: 22: Invalid argument ENFILE: 23: Too many open files in system EMFILE: 24: Too many open files ENOTTY: 25: Inappropriate ioctl for device ETXTBSY: 26: Text file busy EFBIG: 27: File too large ENOSPC: 28: No space left on device ...

  6. devpts - Wikipedia

    en.wikipedia.org/wiki/Devpts

    Opening this device provides access to an otherwise unused pseudo TTY master and allows the matching slave to be identified using an ioctl(). In April of that year, Linux 2.1.93 added a new virtual filesystem called devpts that is normally mounted at /dev/pts. Whenever a new master/slave pair is created, a device node for the slave is created ...

  7. Message authentication code - Wikipedia

    en.wikipedia.org/wiki/Message_authentication_code

    In cryptography, a message authentication code (MAC), sometimes known as an authentication tag, is a short piece of information used for authenticating and integrity-checking a message. In other words, it is used to confirm that the message came from the stated sender (its authenticity) and has not been changed (its integrity).

  8. ethtool - Wikipedia

    en.wikipedia.org/wiki/Ethtool

    ethtool is the primary means in Linux kernel-based operating systems (primarily Linux and Android) for displaying and modifying the parameters of network interface controllers (NICs) and their associated device driver software from application programs running in userspace.

  9. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    [2] 410 Gone The user existed once, but is not available here any more. [1]: §21.4.10 411 Length Required The server will not accept the request without a valid Content-Length. [8]: §7.4.12 Deprecated by omission from later RFCs [1] and by non-registration with the IANA. [2] 412 Conditional Request Failed The given precondition has not been ...