diff --git a/bin/xbps-bin/check.c b/bin/xbps-bin/check.c
index 7d63cd1e..7c9395fb 100644
--- a/bin/xbps-bin/check.c
+++ b/bin/xbps-bin/check.c
@@ -35,54 +35,67 @@
 #include <xbps_api.h>
 #include "defs.h"
 
+struct checkpkg {
+	size_t npkgs;
+	size_t nbrokenpkgs;
+};
+
+static int
+cb_pkg_integrity(prop_object_t obj, void *arg, bool *done)
+{
+	struct checkpkg *cpkg = arg;
+	const char *pkgname, *version;
+
+	(void)done;
+
+	prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
+	prop_dictionary_get_cstring_nocopy(obj, "version", &version);
+	printf("Checking %s-%s ...\n", pkgname, version);
+	if (check_pkg_integrity(obj, pkgname) != 0)
+		cpkg->nbrokenpkgs++;
+
+	cpkg->npkgs++;
+	return 0;
+}
+
 int
 check_pkg_integrity_all(void)
 {
-	const struct xbps_handle *xhp;
-	prop_array_t regpkgs;
-	prop_object_t obj;
-	const char *pkgname, *version;
-	size_t i, npkgs = 0, nbrokenpkgs = 0;
+	struct checkpkg *cpkg;
 
-	xhp = xbps_handle_get();
-	regpkgs = prop_dictionary_get(xhp->regpkgdb_dictionary, "packages");
-	if (prop_object_type(regpkgs) != PROP_TYPE_ARRAY)
-		return 0;
+	cpkg = calloc(1, sizeof(*cpkg));
+	if (cpkg == NULL)
+		return ENOMEM;
 
-	for (i = 0; i < prop_array_count(regpkgs); i++) {
-		obj = prop_array_get(regpkgs, i);
-		prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
-		prop_dictionary_get_cstring_nocopy(obj, "version", &version);
-		printf("Checking %s-%s ...\n", pkgname, version);
-		if (check_pkg_integrity(pkgname) != 0)
-			nbrokenpkgs++;
-
-		npkgs++;
-	}
-	printf("%zu package%s processed: %zu broken.\n", npkgs,
-	    npkgs == 1 ? "" : "s", nbrokenpkgs);
+	(void)xbps_regpkgdb_foreach_pkg_cb(cb_pkg_integrity, cpkg);
+	printf("%zu package%s processed: %zu broken.\n", cpkg->npkgs,
+	    cpkg->npkgs == 1 ? "" : "s", cpkg->nbrokenpkgs);
+	free(cpkg);
 
 	return 0;
 }
 
 int
-check_pkg_integrity(const char *pkgname)
+check_pkg_integrity(prop_dictionary_t pkgd, const char *pkgname)
 {
-	prop_dictionary_t pkgd, propsd, filesd;
+	prop_dictionary_t opkgd, propsd, filesd;
 	int rv = 0;
 	bool broken = false;
 
-	propsd = filesd = NULL;
+	propsd = filesd = opkgd = NULL;
 
 	/* find real pkg by name */
-	pkgd = xbps_find_pkg_dict_installed(pkgname, false);
 	if (pkgd == NULL) {
-		/* find virtual pkg by name */
-		pkgd = xbps_find_virtualpkg_dict_installed(pkgname, false);
-	}
-	if (pkgd == NULL) {
-		printf("Package %s is not installed.\n", pkgname);
-		return 0;
+		opkgd = xbps_find_pkg_dict_installed(pkgname, false);
+		if (opkgd == NULL) {
+			/* find virtual pkg by name */
+			pkgd = xbps_find_virtualpkg_dict_installed(pkgname,
+			    false);
+		}
+		if (opkgd == NULL) {
+			printf("Package %s is not installed.\n", pkgname);
+			return 0;
+		}
 	}
 	/*
 	 * Check for props.plist metadata file.
@@ -115,16 +128,16 @@ check_pkg_integrity(const char *pkgname)
 		goto out;
 	}
 
-#define RUN_PKG_CHECK(name)					\
-do {								\
-	rv = check_pkg_##name(pkgd, propsd, filesd);		\
-	if (rv)							\
-		broken = true;					\
-	else if (rv == -1) {					\
-		xbps_error_printf("%s: the %s test "		\
-		    "returned error!\n", pkgname, #name);	\
-		goto out;					\
-	}							\
+#define RUN_PKG_CHECK(name)						\
+do {									\
+	rv = check_pkg_##name(pkgd ? pkgd : opkgd, propsd, filesd);	\
+	if (rv)								\
+		broken = true;						\
+	else if (rv == -1) {						\
+		xbps_error_printf("%s: the %s test "			\
+		    "returned error!\n", pkgname, #name);		\
+		goto out;						\
+	}								\
 } while (0)
 
 	/* Execute pkg checks */
@@ -141,8 +154,8 @@ out:
 		prop_object_release(filesd);
 	if (prop_object_type(propsd) == PROP_TYPE_DICTIONARY)
 		prop_object_release(propsd);
-	if (prop_object_type(pkgd) == PROP_TYPE_DICTIONARY)
-		prop_object_release(pkgd);
+	if (prop_object_type(opkgd) == PROP_TYPE_DICTIONARY)
+		prop_object_release(opkgd);
 	if (broken)
 		return 1;
 
diff --git a/bin/xbps-bin/defs.h b/bin/xbps-bin/defs.h
index 05ef6eff..59b1d310 100644
--- a/bin/xbps-bin/defs.h
+++ b/bin/xbps-bin/defs.h
@@ -56,7 +56,7 @@ int	exec_transaction(bool, bool);
 int	remove_installed_pkgs(int, char **, bool, bool, bool, bool);
 
 /* from check.c */
-int	check_pkg_integrity(const char *);
+int	check_pkg_integrity(prop_dictionary_t, const char *);
 int	check_pkg_integrity_all(void);
 
 #define CHECK_PKG_DECL(type)					\
diff --git a/bin/xbps-bin/main.c b/bin/xbps-bin/main.c
index 013bfaa2..264c64d5 100644
--- a/bin/xbps-bin/main.c
+++ b/bin/xbps-bin/main.c
@@ -295,7 +295,7 @@ main(int argc, char **argv)
 		if (strcasecmp(argv[1], "all") == 0)
 			rv = check_pkg_integrity_all();
 		else
-			rv = check_pkg_integrity(argv[1]);
+			rv = check_pkg_integrity(NULL, argv[1]);
 
 	} else if (strcasecmp(argv[0], "autoupdate") == 0) {
 		/*
diff --git a/include/xbps_api.h b/include/xbps_api.h
index d0118c13..03fe45b0 100644
--- a/include/xbps_api.h
+++ b/include/xbps_api.h
@@ -56,8 +56,8 @@
  */
 #define XBPS_PKGINDEX_VERSION	"1.3"
 
-#define XBPS_API_VERSION	"20111219"
-#define XBPS_VERSION		"0.11.0"
+#define XBPS_API_VERSION	"20111222"
+#define XBPS_VERSION		"0.12"
 
 /**
  * @def XBPS_RELVER
@@ -419,7 +419,7 @@ struct xbps_handle {
 	 */
 	cfg_t *cfg;
 	/**
-	 * @var regpkgdb_dictionary.
+	 * @private regpkgdb_dictionary.
 	 *
 	 * Internalized proplib dictionary with the registed package database
 	 * stored in XBPS_META_PATH/XBPS_REGPKGDB.
@@ -545,13 +545,8 @@ struct xbps_handle {
  * Initialize the XBPS library with the following steps:
  *
  *   - Set function callbacks for fetching and unpacking.
- *   - Set root directory (if not set, defaults to /).
- *   - Set cache directory (if not set, defaults to XBPS_CACHE_PATH).
- *   - Set global flags.
  *   - Set default cache connections for libfetch.
- *   - Initialize the debug printfs.
- *   - Internalize the proplib dictionary in config file.
- *   - Internalize the regpkgdb dictionary (if available).
+ *   - Parse configuration file.
  *
  * @param[in] xhp Pointer to an xbps_handle structure, as returned by
  * \a xbps_handle_alloc().
@@ -769,6 +764,19 @@ int xbps_callback_array_iter_reverse_in_dict(prop_dictionary_t dict,
 			int (*fn)(prop_object_t, void *, bool *),
 			void *arg);
 
+/**
+ * Executes a function callback per a package dictionary registered
+ * in "regpkgdb" plist.
+ *
+ * @param[in] fn Function callback to run for any pkg dictionary.
+ * @param[in] arg Argument to be passed to the function callback.
+ *
+ * @return 0 on success (all objects were processed), otherwise an
+ * errno value.
+ */
+int xbps_regpkgdb_foreach_pkg_cb(int (*fn)(prop_object_t, void *, bool *),
+				 void *arg);
+
 /**
  * Finds the proplib's dictionary associated with a package, by looking
  * it via its name in a proplib dictionary.
diff --git a/lib/regpkgdb_dictionary.c b/lib/regpkgdb_dictionary.c
index b74b15ac..d8f4a847 100644
--- a/lib/regpkgdb_dictionary.c
+++ b/lib/regpkgdb_dictionary.c
@@ -100,3 +100,31 @@ xbps_regpkgdb_dictionary_release(void)
 	regpkgdb_initialized = false;
 	xbps_dbg_printf("[regpkgdb] released ok.\n");
 }
+
+int
+xbps_regpkgdb_foreach_pkg_cb(int (*fn)(prop_object_t, void *, bool *),
+			     void *arg)
+{
+	prop_array_t array;
+	prop_object_t obj;
+	struct xbps_handle *xhp = xbps_handle_get();
+	size_t i;
+	int rv;
+	bool done = false;
+
+	/* initialize regpkgdb */
+	if ((rv = xbps_regpkgdb_dictionary_init(xhp)) != 0)
+		return rv;
+
+	array = prop_dictionary_get(xhp->regpkgdb_dictionary, "packages");
+	if (prop_object_type(array) != PROP_TYPE_ARRAY)
+		return EINVAL;
+
+	for (i = 0; i < prop_array_count(array); i++) {
+		obj = prop_array_get(array, i);
+		rv = (*fn)(obj, arg, &done);
+		if (rv != 0 || done)
+			break;
+	}
+	return rv;
+}