New public function gpgrt_access.

* src/gpg-error.h.in (gpgrt_access): New.
* src/gpg-error.vers. src/gpg-error.def.in: Add new function.
* src/sysutils.c (any8bitchar): New.
(_gpgrt_access): New.
* src/visibility.c (gpgrt_access): New.

* src/spawn-w32.c (_gpgrt_spawn_process_detached): Use it.
* src/argparse.c (try_versioned_conffile): Use it.
* tests/t-stringutils.c (check_access): New simple test.
--

This is basically a wrapper to allow handling of utf8 encoded file
names on Windows.  This also fixes the case for versioned config files
in directories with non-ascii characters.

The new test needs to be run manually on Windows using a directory
with Unicode characters.

GnuPG-bug-id: 5098

1 files changed, 4 insertions, 2 deletions

diff --git a/src/spawn-w32.c b/src/spawn-w32.c
index 12ebe40..3ede1f2 100644
--- a/src/spawn-w32.c
+++ b/src/spawn-w32.c
@@ -826,12 +826,14 @@ _gpgrt_spawn_process_detached (const char *pgmname, const char *argv[],
   int cr_flags;
   char *cmdline;
   int ret;
+  gpg_err_code_t ec;
 
   /* We don't use ENVP.  */
   (void)envp;
 
-  if (access (pgmname, X_OK))
-    return _gpg_err_code_from_syserror ();
+  ec = _gpgrt_access (pgmname, X_OK);
+  if (ec)
+    return ec;
 
   /* Prepare security attributes.  */
   memset (&sec_attr, 0, sizeof sec_attr );