STRUCT ERRORMAP(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’– NAME πŸ’–

okay so bestie, this is struct errormap(9) from the Kernel API Manual, and it is literally the little matchmaker that maps string errors from Plan 9 to Linux numeric ids. no cap. πŸ’…

πŸ¦‹ SYNOPSIS πŸ¦‹

       struct errormap {
           char *name;
           int val;
           int namelen;
           struct hlist_node list;
        };

πŸŽ€ Members πŸŽ€

  • name β€” the string sent over 9P, like the error message's main character. 🫢
  • val β€” the numeric id most closely representing name; it's giving translator energy. ✨
  • namelen β€” the length of string. πŸ“
  • list β€” the hash-table list for string lookup, lowkey keeping things findable. 🧚

🌈 SEE ALSO 🌈

go peek at the Kernel file ./net/9p/error.c, plus p9_error_init(9) and p9_errstr2errno(9). iykyk. πŸ’œ


xoxo from the ./net/9p corner, October 2026 edition β€” signing off on struct errormap(9) πŸ’–πŸŽ€

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