New utilities: xbps-{install,pkgdb,query,reconfigure,rindex} (WIP).

bin/xbps-pkgdb/check_pkg_files.c

@@ -0,0 +1,153 @@
+/*-
+ * Copyright (c) 2011-2012 Juan Romero Pardines.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/param.h>
+
+#include <xbps_api.h>
+#include "defs.h"
+
+/*
+ * Checks package integrity of an installed package.
+ * The following tasks are processed in that order:
+ *
+ * 	o Check for missing installed files.
+ *
+ * 	o Check the hash for all installed files, except
+ * 	  configuration files (which is expected if they are modified).
+ *
+ * Return 0 if test ran successfully, 1 otherwise and -1 on error.
+ */
+int
+check_pkg_files(struct xbps_handle *xhp,
+		const char *pkgname,
+		void *arg,
+		bool *pkgdb_update)
+{
+	prop_array_t array;
+	prop_object_t obj;
+	prop_object_iterator_t iter;
+	prop_dictionary_t pkg_filesd = arg;
+	const char *file, *sha256;
+	char *path;
+	int rv = 0;
+	bool mutable, broken = false, test_broken = false;
+
+	(void)pkgdb_update;
+
+	array = prop_dictionary_get(pkg_filesd, "files");
+	if (array != NULL && prop_array_count(array) > 0) {
+		iter = xbps_array_iter_from_dict(pkg_filesd, "files");
+		if (iter == NULL)
+			return -1;
+
+		while ((obj = prop_object_iterator_next(iter))) {
+			prop_dictionary_get_cstring_nocopy(obj, "file", &file);
+			path = xbps_xasprintf("%s/%s", xhp->rootdir, file);
+			if (path == NULL) {
+				prop_object_iterator_release(iter);
+				return -1;
+			}
+                        prop_dictionary_get_cstring_nocopy(obj,
+                            "sha256", &sha256);
+			rv = xbps_file_hash_check(path, sha256);
+			switch (rv) {
+			case 0:
+				break;
+			case ENOENT:
+				xbps_error_printf("%s: unexistent file %s.\n",
+				    pkgname, file);
+				test_broken = true;
+				break;
+			case ERANGE:
+				mutable = false;
+				prop_dictionary_get_bool(obj,
+				    "mutable", &mutable);
+				if (!mutable) {
+					xbps_error_printf("%s: hash mismatch "
+					    "for %s.\n", pkgname, file);
+					test_broken = true;
+				}
+				break;
+			default:
+				xbps_error_printf(
+				    "%s: can't check `%s' (%s)\n",
+				    pkgname, file, strerror(rv));
+				break;
+			}
+			free(path);
+                }
+                prop_object_iterator_release(iter);
+	}
+	if (test_broken) {
+		xbps_error_printf("%s: files check FAILED.\n", pkgname);
+		test_broken = false;
+		broken = true;
+	}
+
+	/*
+	 * Check for missing configuration files.
+	 */
+	array = prop_dictionary_get(pkg_filesd, "conf_files");
+	if (array != NULL && prop_array_count(array) > 0) {
+		iter = xbps_array_iter_from_dict(pkg_filesd, "conf_files");
+		if (iter == NULL)
+			return -1;
+
+		while ((obj = prop_object_iterator_next(iter))) {
+			prop_dictionary_get_cstring_nocopy(obj, "file", &file);
+			path = xbps_xasprintf("%s/%s", xhp->rootdir, file);
+			if (path == NULL) {
+				prop_object_iterator_release(iter);
+				return -1;
+			}
+			if ((rv = access(path, R_OK)) == -1) {
+				if (errno == ENOENT) {
+					xbps_error_printf(
+					    "%s: unexistent file %s\n",
+					    pkgname, file);
+					test_broken = true;
+				} else
+					xbps_error_printf(
+					    "%s: can't check `%s' (%s)\n",
+					    pkgname, file,
+					    strerror(errno));
+			}
+			free(path);
+		}
+		prop_object_iterator_release(iter);
+	}
+	if (test_broken) {
+		xbps_error_printf("%s: conf files check FAILED.\n", pkgname);
+		broken = true;
+	}
+
+	return broken;
+}