Add SPDX license identifiers to source files under the LGPL

[thirdparty/systemd.git] / src / sleep / sleep.c

diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
index 3b0e927c42966908cca6e429beba959a4d01df64..518032ec69c2d2a9999559dbee5a1c0eb24e6562 100644 (file)
--- a/src/sleep/sleep.c
+++ b/src/sleep/sleep.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.
 
@@ -20,20 +19,21 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <stdio.h>
 #include <errno.h>
-#include <string.h>
 #include <getopt.h>
+#include <stdio.h>
 
-#include "sd-id128.h"
 #include "sd-messages.h"
-#include "log.h"
-#include "util.h"
-#include "strv.h"
+
+#include "def.h"
+#include "exec-util.h"
+#include "fd-util.h"
 #include "fileio.h"
-#include "build.h"
+#include "log.h"
 #include "sleep-config.h"
-#include "def.h"
+#include "string-util.h"
+#include "strv.h"
+#include "util.h"
 
 static char* arg_verb = NULL;
 
@@ -44,19 +44,18 @@ static int write_mode(char **modes) {
         STRV_FOREACH(mode, modes) {
                 int k;
 
-                k = write_string_file("/sys/power/disk", *mode);
+                k = write_string_file("/sys/power/disk", *mode, 0);
                 if (k == 0)
                         return 0;
 
-                log_debug("Failed to write '%s' to /sys/power/disk: %s",
-                          *mode, strerror(-k));
+                log_debug_errno(k, "Failed to write '%s' to /sys/power/disk: %m",
+                                *mode);
                 if (r == 0)
                         r = k;
         }
 
         if (r < 0)
-                log_error("Failed to write mode to /sys/power/disk: %s",
-                          strerror(-r));
+                log_error_errno(r, "Failed to write mode to /sys/power/disk: %m");
 
         return r;
 }
@@ -68,54 +67,56 @@ static int write_state(FILE **f, char **states) {
         STRV_FOREACH(state, states) {
                 int k;
 
-                k = write_string_stream(*f, *state);
+                k = write_string_stream(*f, *state, 0);
                 if (k == 0)
                         return 0;
-                log_debug("Failed to write '%s' to /sys/power/state: %s",
-                          *state, strerror(-k));
+                log_debug_errno(k, "Failed to write '%s' to /sys/power/state: %m",
+                                *state);
                 if (r == 0)
                         r = k;
 
                 fclose(*f);
                 *f = fopen("/sys/power/state", "we");
-                if (!*f) {
-                        log_error("Failed to open /sys/power/state: %m");
-                        return -errno;
-                }
+                if (!*f)
+                        return log_error_errno(errno, "Failed to open /sys/power/state: %m");
         }
 
         return r;
 }
 
 static int execute(char **modes, char **states) {
-        char* arguments[4];
+
+        char *arguments[] = {
+                NULL,
+                (char*) "pre",
+                arg_verb,
+                NULL
+        };
+        static const char* const dirs[] = {
+                SYSTEM_SLEEP_PATH,
+                NULL
+        };
+
         int r;
         _cleanup_fclose_ FILE *f = NULL;
-        const char* note = strappenda("SLEEP=", arg_verb);
 
         /* This file is opened first, so that if we hit an error,
          * we can abort before modifying any state. */
         f = fopen("/sys/power/state", "we");
-        if (!f) {
-                log_error("Failed to open /sys/power/state: %m");
-                return -errno;
-        }
+        if (!f)
+                return log_error_errno(errno, "Failed to open /sys/power/state: %m");
 
         /* Configure the hibernation mode */
         r = write_mode(modes);
         if (r < 0)
                 return r;
 
-        arguments[0] = NULL;
-        arguments[1] = (char*) "pre";
-        arguments[2] = arg_verb;
-        arguments[3] = NULL;
-        execute_directory(SYSTEM_SLEEP_PATH, NULL, DEFAULT_TIMEOUT_USEC, arguments, NULL);
+        execute_directories(dirs, DEFAULT_TIMEOUT_USEC, NULL, NULL, arguments);
 
         log_struct(LOG_INFO,
-                   MESSAGE_ID(SD_MESSAGE_SLEEP_START),
-                   "MESSAGE=Suspending system...",
-                   note,
+                   "MESSAGE_ID=" SD_MESSAGE_SLEEP_START_STR,
+                   LOG_MESSAGE("Suspending system..."),
+                   "SLEEP=%s", arg_verb,
                    NULL);
 
         r = write_state(&f, states);
@@ -123,19 +124,18 @@ static int execute(char **modes, char **states) {
                 return r;
 
         log_struct(LOG_INFO,
-                   MESSAGE_ID(SD_MESSAGE_SLEEP_STOP),
-                   "MESSAGE=System resumed.",
-                   note,
+                   "MESSAGE_ID=" SD_MESSAGE_SLEEP_STOP_STR,
+                   LOG_MESSAGE("System resumed."),
+                   "SLEEP=%s", arg_verb,
                    NULL);
 
         arguments[1] = (char*) "post";
-        execute_directory(SYSTEM_SLEEP_PATH, NULL, DEFAULT_TIMEOUT_USEC, arguments, NULL);
+        execute_directories(dirs, DEFAULT_TIMEOUT_USEC, NULL, NULL, arguments);
 
         return r;
 }
 
-static int help(void) {
-
+static void help(void) {
         printf("%s COMMAND\n\n"
                "Suspend the system, hibernate the system, or both.\n\n"
                "Commands:\n"
@@ -144,10 +144,7 @@ static int help(void) {
                "  suspend              Suspend the system\n"
                "  hibernate            Hibernate the system\n"
                "  hybrid-sleep         Both hibernate and suspend the system\n"
-               , program_invocation_short_name
-               );
-
-        return 0;
+               , program_invocation_short_name);
 }
 
 static int parse_argv(int argc, char *argv[]) {
@@ -166,15 +163,14 @@ static int parse_argv(int argc, char *argv[]) {
         assert(argc >= 0);
         assert(argv);
 
-        while ((c = getopt_long(argc, argv, "+h", options, NULL)) >= 0)
+        while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
                 switch(c) {
                 case 'h':
-                        return help();
+                        help();
+                        return 0; /* done */
 
                 case ARG_VERSION:
-                        puts(PACKAGE_STRING);
-                        puts(SYSTEMD_FEATURES);
-                        return 0 /* done */;
+                        return version();
 
                 case '?':
                         return -EINVAL;