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kbx: Use wrapper functions for es_fclose and es_fopen.

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* kbx/keybox-defs.h (KEYBOX_LL_OPEN_READ)
(KEYBOX_LL_OPEN_UPDATE, KEYBOX_LL_OPEN_CREATE): New.
* kbx/keybox-init.c (_keybox_ll_open): New.  Replace all keybox use of
es_fopen by this function.
(_keybox_ll_close): New.  Replace all keybox use of es_fclose by this
function.
--

Note that this has not been done for the utilities and the backend-kbx
of keyboxd.
This commit is contained in:
Werner Koch 2023-05-05 11:37:44 +02:00
parent a7dbf11954
commit a6c4d6413a
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GPG key ID: E3FDFF218E45B72B
4 changed files with 120 additions and 88 deletions
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45
kbx/keybox-init.c
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@ -180,7 +180,7 @@ keybox_release (KEYBOX_HANDLE hd)
_keybox_release_blob (hd->saved_found.blob);
if (hd->fp)
{
es_fclose (hd->fp);
_keybox_ll_close (hd->fp);
hd->fp = NULL;
}
xfree (hd->word_match.name);
@ -236,6 +236,47 @@ keybox_set_ephemeral (KEYBOX_HANDLE hd, int yes)
}
/* Low-level open function to be used for keybox files. This function
* also manages custom buffering. On success 0 is returned and a new
* file pointer stored at RFP; on error an error code is returned and
* NULL is stored at RFP. MODE is one of
* KEYBOX_LL_OPEN_READ(0) := fopen mode is "rb"
* KEYBOX_LL_OPEN_UPDATE := fopen mode is "r+b"
* KEYBOX_LL_OPEN_CREATE := fopen mode is "wb"
*/
gpg_error_t
_keybox_ll_open (estream_t *rfp, const char *fname, unsigned int mode)
{
estream_t fp;
*rfp = NULL;
fp = es_fopen (fname,
mode == KEYBOX_LL_OPEN_CREATE
? "wb,sysopen,sequential" :
mode == KEYBOX_LL_OPEN_UPDATE
? "r+b,sysopen,sequential" :
"rb,sysopen,sequential");
if (!fp)
return gpg_error_from_syserror ();
*rfp = fp;
return 0;
}
/* Wrapper around es_fclose to be used for file opened with
* _keybox_ll_open. */
gpg_error_t
_keybox_ll_close (estream_t fp)
{
if (fp && es_fclose (fp))
return gpg_error_from_syserror ();
return 0;
}
/* Close the file of the resource identified by HD. For consistent
results this function closes the files of all handles pointing to
the resource identified by HD. */
@ -253,7 +294,7 @@ _keybox_close_file (KEYBOX_HANDLE hd)
{
if (roverhd->fp)
{
es_fclose (roverhd->fp);
_keybox_ll_close (roverhd->fp);
roverhd->fp = NULL;
}
}