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kbx: Improve and fix keybox_lock. 

* kbx/keybox-init.c (keybox_lock): Make sure ERR is initialized.  Get
error codes from dotlock functions.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-01-13 14:47:06 +01:00
parent 4aceebf36f
commit 8f1368d5e3
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
1 changed files with 13 additions and 15 deletions
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28
kbx/keybox-init.c
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@ -266,10 +266,10 @@ _keybox_close_file (KEYBOX_HANDLE hd)
gpg_error_t
keybox_lock (KEYBOX_HANDLE hd, int yes)
{
gpg_error_t err;
gpg_error_t err = 0;
KB_NAME kb = hd->kb;
if (!keybox_is_writable ((void*)kb))
if (!keybox_is_writable (kb))
return 0;
/* Make sure the lock handle has been created. */
@ -278,9 +278,9 @@ keybox_lock (KEYBOX_HANDLE hd, int yes)
kb->lockhd = dotlock_create (kb->fname, 0);
if (!kb->lockhd)
{
/* Unfortuntaley dotlock_create does not properly set ERRNO. */
err = gpg_error_from_syserror ();
log_info ("can't allocate lock for '%s'\n", kb->fname );
return gpg_error (GPG_ERR_GENERAL);
return err;
}
}
@ -288,28 +288,26 @@ keybox_lock (KEYBOX_HANDLE hd, int yes)
{
if (kb->is_locked)
;
else if (!dotlock_take (kb->lockhd, -1))
kb->is_locked = 1;
else
else if (dotlock_take (kb->lockhd, -1))
{
/* Unfortuntaley dotlock_take does not properly set ERRNO. */
err = gpg_error_from_syserror ();
log_info ("can't lock '%s'\n", kb->fname );
err = gpg_error (GPG_ERR_GENERAL);
}
else
kb->is_locked = 1;
}
else /* Release the lock. */
{
if (!kb->is_locked)
;
else if (!dotlock_release (kb->lockhd))
kb->is_locked = 0;
else
else if (dotlock_release (kb->lockhd))
{
/* Unfortuntaley dotlock_release does not properly set ERRNO. */
err = gpg_error_from_syserror ();
log_info ("can't unlock '%s'\n", kb->fname );
err = gpg_error (GPG_ERR_GENERAL);
}
}
else
kb->is_locked = 0;
}
return err;
}