Add SPDX license identifiers to source files under the LGPL

[thirdparty/systemd.git] / src / udev / udevadm-hwdb.c

diff --git a/src/udev/udevadm-hwdb.c b/src/udev/udevadm-hwdb.c
index a5870d1cee3e091ba5bbbd0d940127acd062b519..ba7a15e6e9d07b7c9256ab3b68c86bbd6e90d2fc 100644 (file)
--- a/src/udev/udevadm-hwdb.c
+++ b/src/udev/udevadm-hwdb.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
@@ -17,18 +18,23 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdlib.h>
-#include <unistd.h>
+#include <ctype.h>
 #include <getopt.h>
+#include <stdlib.h>
 #include <string.h>
-#include <ctype.h>
 
-#include "util.h"
-#include "strbuf.h"
+#include "alloc-util.h"
 #include "conf-files.h"
-
+#include "fileio.h"
+#include "fs-util.h"
+#include "hwdb-internal.h"
+#include "hwdb-util.h"
+#include "label.h"
+#include "mkdir.h"
+#include "strbuf.h"
+#include "string-util.h"
 #include "udev.h"
-#include "libudev-hwdb-def.h"
+#include "util.h"
 
 /*
  * Generic udev properties, key/value database based on modalias strings.
@@ -347,7 +353,7 @@ static int trie_store(struct trie *trie, const char *filename) {
         int64_t size;
         struct trie_header_f h = {
                 .signature = HWDB_SIG,
-                .tool_version = htole64(atoi(VERSION)),
+                .tool_version = htole64(atoi(PACKAGE_VERSION)),
                 .header_size = htole64(sizeof(struct trie_header_f)),
                 .node_size = htole64(sizeof(struct trie_node_f)),
                 .child_entry_size = htole64(sizeof(struct trie_child_entry_f)),
@@ -359,18 +365,14 @@ static int trie_store(struct trie *trie, const char *filename) {
         t.strings_off = sizeof(struct trie_header_f);
         trie_store_nodes_size(&t, trie->root);
 
-        err = fopen_temporary(filename , &t.f, &filename_tmp);
+        err = fopen_temporary(filename, &t.f, &filename_tmp);
         if (err < 0)
                 return err;
         fchmod(fileno(t.f), 0444);
 
         /* write nodes */
-        err = fseeko(t.f, sizeof(struct trie_header_f), SEEK_SET);
-        if (err < 0) {
-                fclose(t.f);
-                unlink_noerrno(filename_tmp);
-                return -errno;
-        }
+        if (fseeko(t.f, sizeof(struct trie_header_f), SEEK_SET) < 0)
+                goto error_fclose;
         root_off = trie_store_nodes(&t, trie->root);
         h.nodes_root_off = htole64(root_off);
         pos = ftello(t.f);
@@ -383,24 +385,24 @@ static int trie_store(struct trie *trie, const char *filename) {
         /* write header */
         size = ftello(t.f);
         h.file_size = htole64(size);
-        err = fseeko(t.f, 0, SEEK_SET);
-        if (err < 0) {
-                fclose(t.f);
-                unlink_noerrno(filename_tmp);
-                return -errno;
-        }
+        if (fseeko(t.f, 0, SEEK_SET < 0))
+                goto error_fclose;
         fwrite(&h, sizeof(struct trie_header_f), 1, t.f);
-        err = ferror(t.f);
-        if (err)
-                err = -errno;
+
+        if (ferror(t.f))
+                goto error_fclose;
+        if (fflush(t.f) < 0)
+                goto error_fclose;
+        if (fsync(fileno(t.f)) < 0)
+                goto error_fclose;
+        if (rename(filename_tmp, filename) < 0)
+                goto error_fclose;
+
+        /* write succeeded */
         fclose(t.f);
-        if (err < 0 || rename(filename_tmp, filename) < 0) {
-                unlink_noerrno(filename_tmp);
-                return err < 0 ? err : -errno;
-        }
 
         log_debug("=== trie on-disk ===");
-        log_debug("size:             %8"PRIu64" bytes", size);
+        log_debug("size:             %8"PRIi64" bytes", size);
         log_debug("header:           %8zu bytes", sizeof(struct trie_header_f));
         log_debug("nodes:            %8"PRIu64" bytes (%8"PRIu64")",
                   t.nodes_count * sizeof(struct trie_node_f), t.nodes_count);
@@ -412,6 +414,12 @@ static int trie_store(struct trie *trie, const char *filename) {
         log_debug("strings start:    %8"PRIu64, t.strings_off);
 
         return 0;
+
+ error_fclose:
+        err = -errno;
+        fclose(t.f);
+        unlink(filename_tmp);
+        return err;
 }
 
 static int insert_data(struct trie *trie, struct udev_list *match_list,
@@ -620,7 +628,7 @@ static int adm_hwdb(struct udev *udev, int argc, char *argv[]) {
                 }
                 trie->nodes_count++;
 
-                err = conf_files_list_strv(&files, ".hwdb", root, conf_file_dirs);
+                err = conf_files_list_strv(&files, ".hwdb", root, 0, conf_file_dirs);
                 if (err < 0) {
                         log_error_errno(err, "failed to enumerate hwdb files: %m");
                         rc = EXIT_FAILURE;
@@ -648,28 +656,33 @@ static int adm_hwdb(struct udev *udev, int argc, char *argv[]) {
                 log_debug("strings dedup'ed: %8zu bytes (%8zu)",
                           trie->strings->dedup_len, trie->strings->dedup_count);
 
-                hwdb_bin = strjoin(root, "/", hwdb_bin_dir, "/hwdb.bin", NULL);
+                hwdb_bin = strjoin(root, "/", hwdb_bin_dir, "/hwdb.bin");
                 if (!hwdb_bin) {
                         rc = EXIT_FAILURE;
                         goto out;
                 }
-                mkdir_parents(hwdb_bin, 0755);
+
+                mkdir_parents_label(hwdb_bin, 0755);
+
                 err = trie_store(trie, hwdb_bin);
                 if (err < 0) {
                         log_error_errno(err, "Failure writing database %s: %m", hwdb_bin);
                         rc = EXIT_FAILURE;
                 }
+
+                label_fix(hwdb_bin, false, false);
         }
 
         if (test) {
-                struct udev_hwdb *hwdb = udev_hwdb_new(udev);
+                _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
+                int r;
 
-                if (hwdb) {
-                        struct udev_list_entry *entry;
+                r = sd_hwdb_new(&hwdb);
+                if (r >= 0) {
+                        const char *key, *value;
 
-                        udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, test, 0))
-                                printf("%s=%s\n", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry));
-                        udev_hwdb_unref(hwdb);
+                        SD_HWDB_FOREACH_PROPERTY(hwdb, test, key, value)
+                                printf("%s=%s\n", key, value);
                 }
         }
 out:
@@ -685,5 +698,4 @@ out:
 const struct udevadm_cmd udevadm_hwdb = {
         .name = "hwdb",
         .cmd = adm_hwdb,
-        .help = "maintain the hardware database index",
 };