gpg-interface.c: use flags to determine key/signer info presence

Replace the logic used to determine whether key and signer information
is present to use explicit flags in sigcheck_gpg_status[] array.  This
is more future-proof, since it makes it possible to add additional
statuses without having to explicitly update the conditions.

Signed-off-by: Michał Górny <mgorny@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michał Górny 2018-10-22 18:38:19 +02:00 committed by Junio C Hamano
parent da6cf1b336
commit 0b11a84e1b

View File

@ -77,20 +77,27 @@ void signature_check_clear(struct signature_check *sigc)
/* An exclusive status -- only one of them can appear in output */
#define GPG_STATUS_EXCLUSIVE (1<<0)
/* The status includes key identifier */
#define GPG_STATUS_KEYID (1<<1)
/* The status includes user identifier */
#define GPG_STATUS_UID (1<<2)
/* Short-hand for standard exclusive *SIG status with keyid & UID */
#define GPG_STATUS_STDSIG (GPG_STATUS_EXCLUSIVE|GPG_STATUS_KEYID|GPG_STATUS_UID)
static struct {
char result;
const char *check;
unsigned int flags;
} sigcheck_gpg_status[] = {
{ 'G', "GOODSIG ", GPG_STATUS_EXCLUSIVE },
{ 'B', "BADSIG ", GPG_STATUS_EXCLUSIVE },
{ 'G', "GOODSIG ", GPG_STATUS_STDSIG },
{ 'B', "BADSIG ", GPG_STATUS_STDSIG },
{ 'U', "TRUST_NEVER", 0 },
{ 'U', "TRUST_UNDEFINED", 0 },
{ 'E', "ERRSIG ", GPG_STATUS_EXCLUSIVE },
{ 'X', "EXPSIG ", GPG_STATUS_EXCLUSIVE },
{ 'Y', "EXPKEYSIG ", GPG_STATUS_EXCLUSIVE },
{ 'R', "REVKEYSIG ", GPG_STATUS_EXCLUSIVE },
{ 'E', "ERRSIG ", GPG_STATUS_EXCLUSIVE|GPG_STATUS_KEYID },
{ 'X', "EXPSIG ", GPG_STATUS_STDSIG },
{ 'Y', "EXPKEYSIG ", GPG_STATUS_STDSIG },
{ 'R', "REVKEYSIG ", GPG_STATUS_STDSIG },
};
static void parse_gpg_output(struct signature_check *sigc)
@ -117,13 +124,13 @@ static void parse_gpg_output(struct signature_check *sigc)
}
sigc->result = sigcheck_gpg_status[i].result;
/* The trust messages are not followed by key/signer information */
if (sigc->result != 'U') {
/* Do we have key information? */
if (sigcheck_gpg_status[i].flags & GPG_STATUS_KEYID) {
next = strchrnul(line, ' ');
free(sigc->key);
sigc->key = xmemdupz(line, next - line);
/* The ERRSIG message is not followed by signer information */
if (*next && sigc->result != 'E') {
/* Do we have signer information? */
if (*next && (sigcheck_gpg_status[i].flags & GPG_STATUS_UID)) {
line = next + 1;
next = strchrnul(line, '\n');
free(sigc->signer);