On Sun, 28 Jul 2013 01:53:16 +0200 Roland Mainz wrote: > Attached (as "astksh20130727_readlink001.diff.txt") is the prototype > patch for the readlink(1) builtin.
> ** Notes: > * the builtin is currently at the level of functionality which > FreeBSD's and busybox's readlink(1) utilities provide... plus -D > * AST readlink(1) has an option to pass a directory fd to |readlinkat()| > * GNU readlink provides these three extra options... > -- snip -- > -f, --canonicalize canonicalize by following every symlink in > every component of the given name recursively; > all but the last component must exist > -e, --canonicalize-existing canonicalize by following every symlink in > every component of the given name recursively, > all components must exist > -m, --canonicalize-missing canonicalize by following every symlink in > every component of the given name recursively, > without requirements on components existence > -- snip -- > ... are these options needed by anyone... and if "yes" ... what would > be the best way to implement them ? see src/lib/libast/path/pathcanon.c the PATH_* flags handle all but the "all but the last component must exist" part by default pathcanon() does logical canonicalization (not existence checks, no symlinks) _______________________________________________ ast-developers mailing list [email protected] http://lists.research.att.com/mailman/listinfo/ast-developers
