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author | Kevin Ryde <user42@zip.com.au> | 2003-09-12 23:35:54 +0000 |
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committer | Kevin Ryde <user42@zip.com.au> | 2003-09-12 23:35:54 +0000 |
commit | 833fc2f186a52c9b4180fcd215e7faae626bbb80 (patch) | |
tree | a5b7d9e76a45530782bdbd1c9cb12bc4967c2190 | |
parent | 97a61c5f91dc2524bac085a373890543a3fb21f5 (diff) | |
download | guile-833fc2f186a52c9b4180fcd215e7faae626bbb80.tar.gz |
(file-exists?): Use stat rather than access?, so as to
follow the effective UID/GID not the real ID. file-exists? is
normally be used as a prelude to opening or some other operation, and
it's the effective ID which will apply there. Emacs file-exists-p
uses stat, presumably for the the same reason.
-rw-r--r-- | ice-9/boot-9.scm | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/ice-9/boot-9.scm b/ice-9/boot-9.scm index e3620e038..5ec9b3234 100644 --- a/ice-9/boot-9.scm +++ b/ice-9/boot-9.scm @@ -407,10 +407,12 @@ (if (provided? 'socket) (primitive-load-path "ice-9/networking.scm")) +;; ENHANCE-ME: Catching an exception from stat is a bit wasteful, do this in +;; C where all that's needed is to inspect the return from stat(). (define file-exists? (if (provided? 'posix) (lambda (str) - (access? str F_OK)) + (->bool (false-if-exception (stat str)))) (lambda (str) (let ((port (catch 'system-error (lambda () (open-file str OPEN_READ)) (lambda args #f)))) |