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Replace all calls to access by gnupg_access

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* common/sysutils.c (gnupg_access): New.  Replace all calls to access
by this wrapper.
* common/homedir.c (w32_shgetfolderpath): Change to return UTF-8
directory name.
(standard_homedir): Adjust for change.
(w32_commondir, gnupg_cachedir): Ditto.
--

Also use SHGetFolderPathW instead of SHGetFolderPathA on Windows.

This is required to correctly handle non-ascii filenames on Windows.

GnuPG-bug-id: 5098
This commit is contained in:
Werner Koch 2020-10-20 10:43:55 +02:00
parent 228836f79f
commit c94ee1386e
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
28 changed files with 151 additions and 128 deletions
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14
g10/keydb.c
View file

@ -29,6 +29,7 @@
#include "gpg.h"
#include "../common/util.h"
#include "../common/sysutils.h"
#include "options.h"
#include "main.h" /*try_make_homedir ()*/
#include "packet.h"
@ -211,6 +212,7 @@ keyblock_cache_clear (struct keydb_handle_s *hd)
static gpg_error_t
maybe_create_keyring_or_box (char *filename, int is_box, int force_create)
{
gpg_err_code_t ec;
dotlock_t lockhd = NULL;
IOBUF iobuf;
int rc;
@ -221,8 +223,8 @@ maybe_create_keyring_or_box (char *filename, int is_box, int force_create)
int save_slash;
/* A quick test whether the filename already exists. */
if (!access (filename, F_OK))
return !access (filename, R_OK)? 0 : gpg_error (GPG_ERR_EACCES);
if (!gnupg_access (filename, F_OK))
return !gnupg_access (filename, R_OK)? 0 : gpg_error (GPG_ERR_EACCES);
/* If we don't want to create a new file at all, there is no need to
go any further - bail out right here. */
@ -257,9 +259,9 @@ maybe_create_keyring_or_box (char *filename, int is_box, int force_create)
tried = 1;
try_make_homedir (filename);
}
if (access (filename, F_OK))
if ((ec = gnupg_access (filename, F_OK)))
{
rc = gpg_error_from_syserror ();
rc = gpg_error (ec);
*last_slash_in_filename = save_slash;
goto leave;
}
@ -316,12 +318,12 @@ maybe_create_keyring_or_box (char *filename, int is_box, int force_create)
if (rc)
goto leave;
if (!access (filename, F_OK))
if (!gnupg_access (filename, F_OK))
{
rc = 0; /* Okay, we may access the file now. */
goto leave;
}
if (!access (bak_fname, F_OK) && !access (tmp_fname, F_OK))
if (!gnupg_access (bak_fname, F_OK) && !gnupg_access (tmp_fname, F_OK))
{
/* Very likely another process is updating a pubring.gpg and we
should not create a pubring.kbx. */