g10: Add test for keydb as well as new testing infrastructure.

* g10/Makefile.am (EXTRA_DIST): Add test.c.
(AM_CPPFLAGS): Add -DSOURCE_DIR="\"$(srcdir)\"".
(module_tests): Add t-keydb.
(t_keydb_SOURCES): New variable.
(t_keydb_LDADD): Likewise.
* g10/t-keydb.c: New file.
* g10/t-keydb-keyring.kbx: New file.
* g10/test-stubs.c: New file.
* g10/test.c: New file.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.

g10/test-stubs.c

@@ -0,0 +1,413 @@
+/* test-stubs.c - The GnuPG signature verify utility
+ * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005, 2006,
+ *               2008, 2009, 2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+
+#define INCLUDED_BY_MAIN_MODULE 1
+#include "gpg.h"
+#include "util.h"
+#include "packet.h"
+#include "iobuf.h"
+#include "main.h"
+#include "options.h"
+#include "keydb.h"
+#include "trustdb.h"
+#include "filter.h"
+#include "ttyio.h"
+#include "i18n.h"
+#include "sysutils.h"
+#include "status.h"
+#include "call-agent.h"
+
+int g10_errors_seen;
+
+
+void
+g10_exit( int rc )
+{
+  rc = rc? rc : log_get_errorcount(0)? 2 : g10_errors_seen? 1 : 0;
+  exit(rc );
+}
+
+
+/* Stub:
+ * We have to override the trustcheck from pkclist.c becuase
+ * this utility assumes that all keys in the keyring are trustworthy
+ */
+int
+check_signatures_trust( PKT_signature *sig )
+{
+  (void)sig;
+  return 0;
+}
+
+void
+read_trust_options(byte *trust_model, ulong *created, ulong *nextcheck,
+		   byte *marginals, byte *completes, byte *cert_depth,
+		   byte *min_cert_level)
+{
+  (void)trust_model;
+  (void)created;
+  (void)nextcheck;
+  (void)marginals;
+  (void)completes;
+  (void)cert_depth;
+  (void)min_cert_level;
+}
+
+/* Stub:
+ * We don't have the trustdb , so we have to provide some stub functions
+ * instead
+ */
+
+int
+cache_disabled_value(PKT_public_key *pk)
+{
+  (void)pk;
+  return 0;
+}
+
+void
+check_trustdb_stale(void)
+{
+}
+
+int
+get_validity_info (PKT_public_key *pk, PKT_user_id *uid)
+{
+  (void)pk;
+  (void)uid;
+  return '?';
+}
+
+unsigned int
+get_validity (PKT_public_key *pk, PKT_user_id *uid)
+{
+  (void)pk;
+  (void)uid;
+  return 0;
+}
+
+const char *
+trust_value_to_string (unsigned int value)
+{
+  (void)value;
+  return "err";
+}
+
+const char *
+uid_trust_string_fixed (PKT_public_key *key, PKT_user_id *uid)
+{
+  (void)key;
+  (void)uid;
+  return "err";
+}
+
+int
+get_ownertrust_info (PKT_public_key *pk)
+{
+  (void)pk;
+  return '?';
+}
+
+unsigned int
+get_ownertrust (PKT_public_key *pk)
+{
+  (void)pk;
+  return TRUST_UNKNOWN;
+}
+
+
+/* Stubs:
+ * Because we only work with trusted keys, it does not make sense to
+ * get them from a keyserver
+ */
+
+struct keyserver_spec *
+keyserver_match (struct keyserver_spec *spec)
+{
+  (void)spec;
+  return NULL;
+}
+
+int
+keyserver_import_keyid (u32 *keyid, void *dummy)
+{
+  (void)keyid;
+  (void)dummy;
+  return -1;
+}
+
+int
+keyserver_import_cert (const char *name)
+{
+  (void)name;
+  return -1;
+}
+
+int
+keyserver_import_pka (const char *name,unsigned char *fpr)
+{
+  (void)name;
+  (void)fpr;
+  return -1;
+}
+
+int
+keyserver_import_name (const char *name,struct keyserver_spec *spec)
+{
+  (void)name;
+  (void)spec;
+  return -1;
+}
+
+int
+keyserver_import_ldap (const char *name)
+{
+  (void)name;
+  return -1;
+}
+
+/* Stub:
+ * No encryption here but mainproc links to these functions.
+ */
+gpg_error_t
+get_session_key (PKT_pubkey_enc *k, DEK *dek)
+{
+  (void)k;
+  (void)dek;
+  return GPG_ERR_GENERAL;
+}
+
+/* Stub: */
+gpg_error_t
+get_override_session_key (DEK *dek, const char *string)
+{
+  (void)dek;
+  (void)string;
+  return GPG_ERR_GENERAL;
+}
+
+/* Stub: */
+int
+decrypt_data (ctrl_t ctrl, void *procctx, PKT_encrypted *ed, DEK *dek)
+{
+  (void)ctrl;
+  (void)procctx;
+  (void)ed;
+  (void)dek;
+  return GPG_ERR_GENERAL;
+}
+
+
+/* Stub:
+ * No interactive commands, so we don't need the helptexts
+ */
+void
+display_online_help (const char *keyword)
+{
+  (void)keyword;
+}
+
+/* Stub:
+ * We don't use secret keys, but getkey.c links to this
+ */
+int
+check_secret_key (PKT_public_key *pk, int n)
+{
+  (void)pk;
+  (void)n;
+  return GPG_ERR_GENERAL;
+}
+
+/* Stub:
+ * No secret key, so no passphrase needed
+ */
+DEK *
+passphrase_to_dek (u32 *keyid, int pubkey_algo,
+                   int cipher_algo, STRING2KEY *s2k, int mode,
+                   const char *tmp, int *canceled)
+{
+  (void)keyid;
+  (void)pubkey_algo;
+  (void)cipher_algo;
+  (void)s2k;
+  (void)mode;
+  (void)tmp;
+
+  if (canceled)
+    *canceled = 0;
+  return NULL;
+}
+
+void
+passphrase_clear_cache (u32 *keyid, const char *cacheid, int algo)
+{
+  (void)keyid;
+  (void)cacheid;
+  (void)algo;
+}
+
+struct keyserver_spec *
+parse_preferred_keyserver(PKT_signature *sig)
+{
+  (void)sig;
+  return NULL;
+}
+
+struct keyserver_spec *
+parse_keyserver_uri (const char *uri, int require_scheme,
+                     const char *configname, unsigned int configlineno)
+{
+  (void)uri;
+  (void)require_scheme;
+  (void)configname;
+  (void)configlineno;
+  return NULL;
+}
+
+void
+free_keyserver_spec (struct keyserver_spec *keyserver)
+{
+  (void)keyserver;
+}
+
+/* Stubs to avoid linking to photoid.c */
+void
+show_photos (const struct user_attribute *attrs, int count, PKT_public_key *pk)
+{
+  (void)attrs;
+  (void)count;
+  (void)pk;
+}
+
+int
+parse_image_header (const struct user_attribute *attr, byte *type, u32 *len)
+{
+  (void)attr;
+  (void)type;
+  (void)len;
+  return 0;
+}
+
+char *
+image_type_to_string (byte type, int string)
+{
+  (void)type;
+  (void)string;
+  return NULL;
+}
+
+#ifdef ENABLE_CARD_SUPPORT
+int
+agent_scd_getattr (const char *name, struct agent_card_info_s *info)
+{
+  (void)name;
+  (void)info;
+  return 0;
+}
+#endif /* ENABLE_CARD_SUPPORT */
+
+/* We do not do any locking, so use these stubs here */
+void
+dotlock_disable (void)
+{
+}
+
+dotlock_t
+dotlock_create (const char *file_to_lock, unsigned int flags)
+{
+  (void)file_to_lock;
+  (void)flags;
+  return NULL;
+}
+
+void
+dotlock_destroy (dotlock_t h)
+{
+  (void)h;
+}
+
+int
+dotlock_take (dotlock_t h, long timeout)
+{
+  (void)h;
+  (void)timeout;
+  return 0;
+}
+
+int
+dotlock_release (dotlock_t h)
+{
+  (void)h;
+  return 0;
+}
+
+void
+dotlock_remove_lockfiles (void)
+{
+}
+
+gpg_error_t
+agent_probe_secret_key (ctrl_t ctrl, PKT_public_key *pk)
+{
+  (void)ctrl;
+  (void)pk;
+  return gpg_error (GPG_ERR_NO_SECKEY);
+}
+
+gpg_error_t
+agent_probe_any_secret_key (ctrl_t ctrl, kbnode_t keyblock)
+{
+  (void)ctrl;
+  (void)keyblock;
+  return gpg_error (GPG_ERR_NO_SECKEY);
+}
+
+gpg_error_t
+agent_get_keyinfo (ctrl_t ctrl, const char *hexkeygrip, char **r_serialno)
+{
+  (void)ctrl;
+  (void)hexkeygrip;
+  *r_serialno = NULL;
+  return gpg_error (GPG_ERR_NO_SECKEY);
+}
+
+gpg_error_t
+gpg_dirmngr_get_pka (ctrl_t ctrl, const char *userid,
+                     unsigned char **r_fpr, size_t *r_fprlen,
+                     char **r_url)
+{
+  (void)ctrl;
+  (void)userid;
+  if (r_fpr)
+    *r_fpr = NULL;
+  if (r_fprlen)
+    *r_fprlen = 0;
+  if (r_url)
+    *r_url = NULL;
+  return gpg_error (GPG_ERR_NOT_FOUND);
+}