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g10: Move enum_secret_keys to skclist.c.
* g10/getkey.c (enum_secret_keys): Move to... * g10/skclist.c (enum_secret_keys): ... here. -- The function enum_secret_keys is not used by gpgv.c, but it is in getkey.c. Extending enum_secret_keys will require change of gpgv.c, so moving the function to the file for gpg is better. Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka
parent
6bb93fc295
commit
03a8de7def
197
g10/getkey.c
197
g10/getkey.c
@ -3947,203 +3947,6 @@ lookup (ctrl_t ctrl, getkey_ctx_t ctx, int want_secret,
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}
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/* Enumerate some secret keys (specifically, those specified with
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* --default-key and --try-secret-key). Use the following procedure:
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*
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* 1) Initialize a void pointer to NULL
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* 2) Pass a reference to this pointer to this function (content)
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* and provide space for the secret key (sk)
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* 3) Call this function as long as it does not return an error (or
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* until you are done). The error code GPG_ERR_EOF indicates the
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* end of the listing.
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* 4) Call this function a last time with SK set to NULL,
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* so that can free it's context.
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*
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* In pseudo-code:
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*
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* void *ctx = NULL;
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* PKT_public_key *sk = xmalloc_clear (sizeof (*sk));
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*
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* while ((err = enum_secret_keys (&ctx, sk)))
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* { // Process SK.
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* if (done)
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* break;
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* sk = xmalloc_clear (sizeof (*sk));
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* }
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*
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* // Release any resources used by CTX.
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* enum_secret_keys (&ctx, NULL);
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*
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* if (gpg_err_code (err) != GPG_ERR_EOF)
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* ; // An error occurred.
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*/
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gpg_error_t
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enum_secret_keys (ctrl_t ctrl, void **context, PKT_public_key *sk)
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{
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gpg_error_t err = 0;
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const char *name;
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kbnode_t keyblock;
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struct
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{
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int eof;
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int state;
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strlist_t sl;
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kbnode_t keyblock;
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kbnode_t node;
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getkey_ctx_t ctx;
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pubkey_t results;
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} *c = *context;
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if (!c)
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{
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/* Make a new context. */
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c = xtrycalloc (1, sizeof *c);
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if (!c)
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return gpg_error_from_syserror ();
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*context = c;
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}
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if (!sk)
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{
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/* Free the context. */
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pubkeys_free (c->results);
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release_kbnode (c->keyblock);
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getkey_end (ctrl, c->ctx);
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xfree (c);
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*context = NULL;
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return 0;
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}
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if (c->eof)
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return gpg_error (GPG_ERR_EOF);
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for (;;)
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{
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/* Loop until we have a keyblock. */
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while (!c->keyblock)
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{
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/* Loop over the list of secret keys. */
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do
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{
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name = NULL;
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keyblock = NULL;
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switch (c->state)
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{
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case 0: /* First try to use the --default-key. */
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name = parse_def_secret_key (ctrl);
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c->state = 1;
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break;
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case 1: /* Init list of keys to try. */
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c->sl = opt.secret_keys_to_try;
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c->state++;
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break;
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case 2: /* Get next item from list. */
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if (c->sl)
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{
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name = c->sl->d;
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c->sl = c->sl->next;
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}
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else
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c->state++;
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break;
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case 3: /* Init search context to enum all secret keys. */
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err = getkey_bynames (ctrl, &c->ctx, NULL, NULL, 1,
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&keyblock);
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if (err)
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{
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release_kbnode (keyblock);
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keyblock = NULL;
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getkey_end (ctrl, c->ctx);
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c->ctx = NULL;
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}
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c->state++;
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break;
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case 4: /* Get next item from the context. */
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if (c->ctx)
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{
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err = getkey_next (ctrl, c->ctx, NULL, &keyblock);
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if (err)
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{
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release_kbnode (keyblock);
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keyblock = NULL;
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getkey_end (ctrl, c->ctx);
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c->ctx = NULL;
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}
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}
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else
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c->state++;
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break;
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default: /* No more names to check - stop. */
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c->eof = 1;
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return gpg_error (GPG_ERR_EOF);
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}
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}
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while ((!name || !*name) && !keyblock);
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if (keyblock)
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c->node = c->keyblock = keyblock;
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else
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{
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err = getkey_byname (ctrl, NULL, NULL, name, 1, &c->keyblock);
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if (err)
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{
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/* getkey_byname might return a keyblock even in the
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error case - I have not checked. Thus better release
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it. */
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release_kbnode (c->keyblock);
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c->keyblock = NULL;
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}
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else
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c->node = c->keyblock;
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}
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}
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/* Get the next key from the current keyblock. */
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for (; c->node; c->node = c->node->next)
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{
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if (c->node->pkt->pkttype == PKT_PUBLIC_KEY
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|| c->node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
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{
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pubkey_t r;
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/* Skip this candidate if it's already enumerated. */
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for (r = c->results; r; r = r->next)
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if (!cmp_public_keys (r->pk, c->node->pkt->pkt.public_key))
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break;
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if (r)
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continue;
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copy_public_key (sk, c->node->pkt->pkt.public_key);
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c->node = c->node->next;
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r = xtrycalloc (1, sizeof (*r));
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if (!r)
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{
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err = gpg_error_from_syserror ();
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free_public_key (sk);
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return err;
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}
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r->pk = sk;
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r->keyblock = NULL;
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r->next = c->results;
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c->results = r;
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return 0; /* Found. */
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}
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}
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/* Dispose the keyblock and continue. */
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release_kbnode (c->keyblock);
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c->keyblock = NULL;
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}
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}
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gpg_error_t
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get_seckey_default_or_card (ctrl_t ctrl, PKT_public_key *pk,
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const byte *fpr_card, size_t fpr_len)
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198
g10/skclist.c
198
g10/skclist.c
@ -286,3 +286,201 @@ build_sk_list (ctrl_t ctrl,
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*ret_sk_list = sk_list;
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return err;
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}
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/* Enumerate some secret keys (specifically, those specified with
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* --default-key and --try-secret-key). Use the following procedure:
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*
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* 1) Initialize a void pointer to NULL
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* 2) Pass a reference to this pointer to this function (content)
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* and provide space for the secret key (sk)
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* 3) Call this function as long as it does not return an error (or
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* until you are done). The error code GPG_ERR_EOF indicates the
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* end of the listing.
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* 4) Call this function a last time with SK set to NULL,
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* so that can free it's context.
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*
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* In pseudo-code:
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*
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* void *ctx = NULL;
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* PKT_public_key *sk = xmalloc_clear (sizeof (*sk));
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*
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* while ((err = enum_secret_keys (&ctx, sk)))
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* { // Process SK.
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* if (done)
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* break;
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* sk = xmalloc_clear (sizeof (*sk));
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* }
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*
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* // Release any resources used by CTX.
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* enum_secret_keys (&ctx, NULL);
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*
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* if (gpg_err_code (err) != GPG_ERR_EOF)
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* ; // An error occurred.
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*/
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gpg_error_t
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enum_secret_keys (ctrl_t ctrl, void **context, PKT_public_key *sk)
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{
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gpg_error_t err = 0;
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const char *name;
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kbnode_t keyblock;
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struct
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{
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int eof;
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int state;
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strlist_t sl;
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kbnode_t keyblock;
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kbnode_t node;
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getkey_ctx_t ctx;
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pubkey_t results;
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} *c = *context;
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if (!c)
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{
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/* Make a new context. */
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c = xtrycalloc (1, sizeof *c);
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if (!c)
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return gpg_error_from_syserror ();
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*context = c;
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}
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if (!sk)
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{
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/* Free the context. */
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pubkeys_free (c->results);
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release_kbnode (c->keyblock);
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getkey_end (ctrl, c->ctx);
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xfree (c);
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*context = NULL;
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return 0;
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}
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if (c->eof)
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return gpg_error (GPG_ERR_EOF);
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for (;;)
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{
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/* Loop until we have a keyblock. */
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while (!c->keyblock)
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{
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/* Loop over the list of secret keys. */
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do
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{
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name = NULL;
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keyblock = NULL;
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switch (c->state)
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{
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case 0: /* First try to use the --default-key. */
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name = parse_def_secret_key (ctrl);
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c->state = 1;
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break;
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case 1: /* Init list of keys to try. */
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c->sl = opt.secret_keys_to_try;
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c->state++;
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break;
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case 2: /* Get next item from list. */
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if (c->sl)
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{
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name = c->sl->d;
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c->sl = c->sl->next;
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}
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else
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c->state++;
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break;
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case 3: /* Init search context to enum all secret keys. */
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err = getkey_bynames (ctrl, &c->ctx, NULL, NULL, 1,
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&keyblock);
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if (err)
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{
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release_kbnode (keyblock);
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keyblock = NULL;
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getkey_end (ctrl, c->ctx);
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c->ctx = NULL;
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}
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c->state++;
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break;
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case 4: /* Get next item from the context. */
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if (c->ctx)
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{
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err = getkey_next (ctrl, c->ctx, NULL, &keyblock);
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if (err)
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{
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release_kbnode (keyblock);
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keyblock = NULL;
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getkey_end (ctrl, c->ctx);
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c->ctx = NULL;
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}
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}
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else
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c->state++;
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break;
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default: /* No more names to check - stop. */
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c->eof = 1;
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return gpg_error (GPG_ERR_EOF);
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}
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}
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while ((!name || !*name) && !keyblock);
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if (keyblock)
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c->node = c->keyblock = keyblock;
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else
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{
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err = getkey_byname (ctrl, NULL, NULL, name, 1, &c->keyblock);
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if (err)
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{
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/* getkey_byname might return a keyblock even in the
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error case - I have not checked. Thus better release
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it. */
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release_kbnode (c->keyblock);
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c->keyblock = NULL;
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}
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else
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c->node = c->keyblock;
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}
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}
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/* Get the next key from the current keyblock. */
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for (; c->node; c->node = c->node->next)
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{
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if (c->node->pkt->pkttype == PKT_PUBLIC_KEY
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|| c->node->pkt->pkttype == PKT_PUBLIC_SUBKEY)
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{
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pubkey_t r;
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/* Skip this candidate if it's already enumerated. */
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for (r = c->results; r; r = r->next)
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if (!cmp_public_keys (r->pk, c->node->pkt->pkt.public_key))
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break;
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if (r)
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continue;
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copy_public_key (sk, c->node->pkt->pkt.public_key);
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c->node = c->node->next;
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r = xtrycalloc (1, sizeof (*r));
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if (!r)
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{
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err = gpg_error_from_syserror ();
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free_public_key (sk);
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return err;
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}
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r->pk = sk;
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r->keyblock = NULL;
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r->next = c->results;
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c->results = r;
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return 0; /* Found. */
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}
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}
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/* Dispose the keyblock and continue. */
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release_kbnode (c->keyblock);
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c->keyblock = NULL;
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}
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}
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