Internet Assigned Numbers Authority Operating System Specific Parameters Created 2003-10-31 Last Updated 2020-08-12 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registries included below * OS Specific Fact Names * OS Specific Filetypes OS Specific Fact Names Registration Procedure(s) First Come First Served Reference [RFC3659] Available Formats [IMG] CSV Definition OS Specific Fact of the OS Name Name Syntax of Specification of Semantics Reference the Fact Value From IEEE Std 1003.1-2004 XBD 4.7 "File Times Update" [http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap04.html#tag_04_07]: "st_ctime is associated with the times that the file status is changed." "time-val" Unix Unix.ctime from This is clarified in the operations described throughout IEEE Std 1003.1-2004 XSH 3 "System [Paul_Millar] [RFC3659] Interfaces." Although IEEE Std 1003.1-2004 only considers st_ctime as having second resolution, platform-specific extensions exist that provide st_ctime semantics but with sub-second resolution. Unix.ctime values from such platforms MAY use such finer-grain resolution. From IEEE Std 1003.1-2004 XBD 4.7 "File Times Update" [http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap04.html#tag_04_07]: "The st_atime field is associated with the times that the file data is accessed." This is clarified in the operations described throughout IEEE Std 1003.1-2004 XSH 3 "System "time-val" Interfaces." Unix Unix.atime from [Paul_Millar] [RFC3659] Although IEEE Std 1003.1-2004 only considers st_atime as having second resolution, platform-specific extensions exist that provide st_atime semantics but with sub-second resolution. Unix.atime values from such platforms MAY use such finer-grain resolution. For performance reasons, some platforms allow operations to delay or suppress updates to st_atime. FTP servers on such platforms MAY refrain from publishing the Unix.atime fact. "1*RCHAR" Unix Unix.ownername from File owner name, as mapped from the numeric owner ID, by the operating system. [TJ_Saunders] [RFC3659] "1*RCHAR" Unix Unix.groupname from File group name, as mapped from the numeric group ID, by the operating system. [TJ_Saunders] [RFC3659] OS Specific Filetypes Registration Procedure(s) First Come First Served Reference [RFC3659] Available Formats [IMG] CSV OS Name OS Specific File Type Definition of the Syntax of the Fact Specification of Semantics Reference Value UNIX fifo N/A FIFO special file (S_IFIFO) [Single Unix Specification][Simon_Kissane] UNIX slink N/A Symbolic link (S_IFLNK) [Single Unix Specification][Simon_Kissane] UNIX socket N/A Socket (S_IFSOCK) [Single Unix Specification][Simon_Kissane] UNIX blk N/A Block special file (S_IFBLK) [Single Unix Specification][Simon_Kissane] UNIX chr N/A Character special file (S_IFCHR) [Single Unix Specification][Simon_Kissane] Contact Information ID Name Contact URI Last Updated [Paul_Millar] Paul Millar mailto:paul.millar&desy.de 2014-03-20 [Simon_Kissane] Simon Kissane mailto:skissane&gmail.com 2020-08-12 [TJ_Saunders] TJ Saunders mailto:tj&castaglia.org 2016-11-15 Licensing Terms