bus: make bus_print_all_properties work for non machinectl cases

[elogind.git] / src / shared / util.c

diff --git a/src/shared/util.c b/src/shared/util.c
index 182277030440d34840ce9d1ad032736d25f5b6be..d753781c7a63c47592e56254056018b8dda0ba27 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -76,6 +76,7 @@
 #include "device-nodes.h"
 #include "utf8.h"
 #include "gunicode.h"
+#include "virt.h"
 
 int saved_argc = 0;
 char **saved_argv = NULL;
@@ -1362,7 +1363,7 @@ char *bus_path_escape(const char *s) {
         assert(s);
 
         /* Escapes all chars that D-Bus' object path cannot deal
-         * with. Can be reverse with bus_path_unescape(). We special
+         * with. Can be reversed with bus_path_unescape(). We special
          * case the empty string. */
 
         if (*s == 0)
@@ -5990,3 +5991,37 @@ int split_pair(const char *s, const char *sep, char **l, char **r) {
 
         return 0;
 }
+
+int shall_restore_state(void) {
+        _cleanup_free_ char *line;
+        char *w, *state;
+        size_t l;
+        int r;
+
+        r = proc_cmdline(&line);
+        if (r < 0)
+                return r;
+        if (r == 0) /* Container ... */
+                return 1;
+
+        FOREACH_WORD_QUOTED(w, l, line, state)
+                if (l == 23 && memcmp(w, "systemd.restore_state=0", 23))
+                        return 0;
+
+        return 1;
+}
+
+int proc_cmdline(char **ret) {
+        int r;
+
+        if (detect_container(NULL) > 0) {
+                *ret = NULL;
+                return 0;
+        }
+
+        r = read_one_line_file("/proc/cmdline", ret);
+        if (r < 0)
+                return r;
+
+        return 1;
+}