Add SPDX license identifiers to source files under the LGPL

[thirdparty/systemd.git] / src / hibernate-resume / hibernate-resume-generator.c

diff --git a/src/hibernate-resume/hibernate-resume-generator.c b/src/hibernate-resume/hibernate-resume-generator.c
index 9fb6233336b544da23b52b7f69f81cfc681db519..01222db5167efca4e1d118e7dcab4a86eebb3bdc 100644 (file)
--- a/src/hibernate-resume/hibernate-resume-generator.c
+++ b/src/hibernate-resume/hibernate-resume-generator.c
@@ -1,5 +1,4 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
@@ -19,25 +18,36 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdio.h>
 #include <errno.h>
+#include <stdio.h>
 
+#include "alloc-util.h"
+#include "fstab-util.h"
 #include "log.h"
-#include "util.h"
-#include "special.h"
 #include "mkdir.h"
+#include "proc-cmdline.h"
+#include "special.h"
+#include "string-util.h"
 #include "unit-name.h"
+#include "util.h"
 
 static const char *arg_dest = "/tmp";
-static char *arg_resume_dev = NULL;
+static char *arg_resume_device = NULL;
+
+static int parse_proc_cmdline_item(const char *key, const char *value, void *data) {
 
-static int parse_proc_cmdline_item(const char *key, const char *value) {
+        if (streq(key, "resume")) {
+                char *s;
 
-        if (streq(key, "resume") && value) {
-                free(arg_resume_dev);
-                arg_resume_dev = fstab_node_to_udev_node(value);
-                if (!arg_resume_dev)
+                if (proc_cmdline_value_missing(key, value))
+                        return 0;
+
+                s = fstab_node_to_udev_node(value);
+                if (!s)
                         return log_oom();
+
+                free(arg_resume_device);
+                arg_resume_device = s;
         }
 
         return 0;
@@ -47,14 +57,14 @@ static int process_resume(void) {
         _cleanup_free_ char *name = NULL, *lnk = NULL;
         int r;
 
-        if (!arg_resume_dev)
+        if (!arg_resume_device)
                 return 0;
 
-        r = unit_name_from_path_instance("systemd-hibernate-resume", arg_resume_dev, ".service", &name);
+        r = unit_name_from_path_instance("systemd-hibernate-resume", arg_resume_device, ".service", &name);
         if (r < 0)
                 return log_error_errno(r, "Failed to generate unit name: %m");
 
-        lnk = strjoin(arg_dest, "/" SPECIAL_SYSINIT_TARGET ".wants/", name, NULL);
+        lnk = strjoin(arg_dest, "/" SPECIAL_SYSINIT_TARGET ".wants/", name);
         if (!lnk)
                 return log_oom();
 
@@ -86,12 +96,12 @@ int main(int argc, char *argv[]) {
         if (!in_initrd())
                 return EXIT_SUCCESS;
 
-        r = parse_proc_cmdline(parse_proc_cmdline_item);
+        r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, 0);
         if (r < 0)
                 log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
 
         r = process_resume();
-        free(arg_resume_dev);
+        free(arg_resume_device);
 
         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 }