Merge pull request #17324 from keszybz/resolvectl-compat-output

resolvectl compat output

src/basic/macro.h

@@ -650,4 +650,8 @@ static inline int __coverity_check_and_return__(int condition) {
                 _copy;                                                  \
         })
 
+static inline size_t size_add(size_t x, size_t y) {
+        return y >= SIZE_MAX - x ? SIZE_MAX : x + y;
+}
+
 #include "log.h"

src/basic/string-util.h

@@ -59,6 +59,10 @@ static inline const char* true_false(bool b) {
         return b ? "true" : "false";
 }
 
+static inline const char* plus_minus(bool b) {
+        return b ? "+" : "-";
+}
+
 static inline const char* one_zero(bool b) {
         return b ? "1" : "0";
 }