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(define-module (glob)
:use-module (system foreign)
:use-module (rnrs bytevectors)
:use-module (c cpp)
:export (glob))
(define (glob-err epath eerrno)
(scm-error 'misc-error "glob-err"
"Glob errored on ~s with errno = ~a"
(list (pointer->string epath) eerrno)
#f))
;; NOTE there really should be an (c eval) module, to resolve symbols such as
;; @var{<<}.
(define << ash)
(include# "/usr/include/glob.h" define-public)
(define-values (glob% globfree%)
(let ((this (dynamic-link)))
(values
(pointer->procedure int (dynamic-func "glob" this) `(* ,int * *))
(pointer->procedure void (dynamic-func "globfree" this) '(*)))))
(define glob-flags (logior GLOB_MARK GLOB_BRACE GLOB_TILDE_CHECK))
(define (glob str)
(let ((bv (make-bytevector 100)))
(let ((globret (glob% (string->pointer str)
glob-flags
(procedure->pointer int glob-err (list '* int))
(bytevector->pointer bv))))
(unless (zero? globret)
(scm-error 'misc-error "glob"
"Globret errror ~a"
(list globret)
#f))
(let* ((globstr (parse-c-struct (bytevector->pointer bv) (list size_t '* size_t)))
(strvec (pointer->bytevector (cadr globstr) (car globstr) 0
(string->symbol (format #f "u~a" (* 8 (sizeof '*))))))
(ret (map (compose pointer->string make-pointer)
(bytevector->uint-list strvec (native-endianness) (sizeof '*)))))
(globfree% (bytevector->pointer bv))
ret))))
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