On 2020-08-22 15:31, Brian Inglis wrote: > On 2020-08-22 14:52, The Tick wrote: >> On 8/22/2020 3:43 PM, The Tick wrote: >>> I've been trying to find out how 'ls -l' returns the target of a symlink >>> on windows: >>> >>> $ ls -l >>> lrwxrwxrwx 1 user None 1 Aug 22 15:16 a -> b >>> lrwxrwxrwx 1 user None 5 Aug 22 15:16 b -> final >>> -rw-r--r-- 1 user None 29 Aug 22 15:16 final > > First, read the docs, padawan, to understand the concepts and use, then the > sources: > > https://cygwin.com/cygwin-ug-net/using.html#pathnames-symlinks > >>> My google searches have pointed me to the windows >>> GetFinalPathNameByHandle() function but that does get me the >>> intermediate links -- just the final path (which, of course, is what is >>> implied by the name of the library call). >>> >>> I'm running Msys2 on win7x64. I've looked thru the coreutils for msys2 >>> and cannot find how it is done. That lead me to cygwin coreutils and, >>> again, there does not seem to be anything specific there. Both rely on a >>> working lstat(). >>> >>> This leads me to believe that the guts of the lstat() for windows is >>> implemented in the cygwin.dll. > >> Sorry, I meant readlink() > >>> I'm sure this is a no-brainer for those in the know, but could someone >>> point me to where I could download the source for the cygwin dll so I >>> could examine it? Thank you. > > Check on the Cygwin home page left nav bar Contributing page link and the > links > under those. > > All Windows interfaces are implemented in the DLL, which also includes those > parts of libc which use Windows interfaces, but the non-Windows and libc > interfaces are mainly in newlib; all available online via git: > > https://cygwin.com/git?p=newlib-cygwin.git;a=blob;f=winsup/utils/path.cc#l184
Sorry wrong path.cc and readlink function link^, correct link: https://cygwin.com/git/?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/path.cc#l3405 > and the git clone URLs are on the summary page: > > https://cygwin.com/git/?p=newlib-cygwin.git;a=summary > > All the core Cygwin components, apps, docs, and the web site itself, are also > available under that git subsite. > > You can also run the Cygwin Setup program (see home page) to download the > cygwin > source package by checking the Src [X] checkbox beside the cygwin package > name. -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in IEC units and prefixes, physical quantities in SI.] -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
