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   fcntl    ( 2 )

манипулировать файловым дескриптором (manipulate file descriptor)
  Name  |  Synopsis  |  Description  |  Return value  |  Error  |    Conforming to    |  Note  |  Bugs  |  See also  |

Стандарты (Conforming to)

SVr4, 4.3BSD, POSIX.1-2001. Only the operations F_DUPFD, F_GETFD, F_SETFD, F_GETFL, F_SETFL, F_GETLK, F_SETLK, and F_SETLKW are specified in POSIX.1-2001.

F_GETOWN and F_SETOWN are specified in POSIX.1-2001. (To get their definitions, define either _XOPEN_SOURCE with the value 500 or greater, or _POSIX_C_SOURCE with the value 200809L or greater.)

F_DUPFD_CLOEXEC is specified in POSIX.1-2008. (To get this definition, define _POSIX_C_SOURCE with the value 200809L or greater, or _XOPEN_SOURCE with the value 700 or greater.)

F_GETOWN_EX, F_SETOWN_EX, F_SETPIPE_SZ, F_GETPIPE_SZ, F_GETSIG, F_SETSIG, F_NOTIFY, F_GETLEASE, and F_SETLEASE are Linux- specific. (Define the _GNU_SOURCE macro to obtain these definitions.)

F_OFD_SETLK, F_OFD_SETLKW, and F_OFD_GETLK are Linux-specific (and one must define _GNU_SOURCE to obtain their definitions), but work is being done to have them included in the next version of POSIX.1.

F_ADD_SEALS and F_GET_SEALS are Linux-specific.