Always release the object dictionary returned by xbps_find_pkg_dict_installed().

Document this in the public API header and update all code accordingly.

bin/xbps-bin/check.c

@@ -105,6 +105,7 @@ xbps_check_pkg_integrity(const char *pkgname)
 		printf("Package %s is not installed.\n", pkgname);
 		return 0;
 	}
+	prop_object_release(pkgd);
 
 	/*
 	 * Check for props.plist metadata file.
@@ -296,8 +297,6 @@ out:
 		prop_object_release(filesd);
 	if (propsd)
 		prop_object_release(propsd);
-	if (pkgd)
-		prop_object_release(pkgd);
 	if (broken)
 		rv = EINVAL;
 

bin/xbps-bin/remove.c

@@ -161,6 +161,7 @@ xbps_remove_installed_pkgs(int argc, char **argv, bool force, bool purge)
 			    "PACKAGES!\n", argv[i], version);
 			reqby_force = true;
 		}
+		prop_object_release(dict);
 	}
 	if (!found)
 		return 0;
@@ -185,6 +186,7 @@ xbps_remove_installed_pkgs(int argc, char **argv, bool force, bool purge)
 			cols = strlen(argv[i]) + strlen(version) + 4;
 		}
 		printf("%s-%s ", argv[i], version);
+		prop_object_release(dict);
 	}
 	printf("\n\n");
 	if (!force && !xbps_noyes("Do you want to continue?")) {
@@ -199,6 +201,7 @@ xbps_remove_installed_pkgs(int argc, char **argv, bool force, bool purge)
 		if (dict == NULL)
 			continue;
 		prop_dictionary_get_cstring_nocopy(dict, "version", &version);
+		prop_object_release(dict);
 		if ((rv = pkg_remove_and_purge(argv[i], version, purge)) != 0)
 			return rv;
 	}

include/xbps_api.h

@@ -125,6 +125,7 @@ extern "C" {
  */
 #define XBPS_FLAG_FORCE		0x00000002
 
+
 /**
  * @cond
  */
@@ -478,7 +479,9 @@ prop_dictionary_t xbps_find_pkg_from_plist(const char *plist,
  * by using a package pattern. If false, \a str is assumed to be a package name.
  *
  * @return The package's dictionary on success, NULL otherwise and
- * errno is set appropiately.
+ * errno is set appropiately. Returned dictionary is copied via
+ * prop_dictionary_copy(), which means that caller is responsible to
+ * release the object with prop_object_release() when done.
  */
 prop_dictionary_t xbps_find_pkg_dict_installed(const char *str,
 					       bool bypattern);

lib/package_state.c

@@ -114,6 +114,7 @@ xbps_get_pkg_state_installed(const char *pkgname, pkg_state_t *state)
 		return errno;
 
 	*state = get_state(pkgd);
+	prop_object_release(pkgd);
 	if (*state == 0)
 		return EINVAL;