resolve: add llmnr responder side for UDP and TCP

[elogind.git] / src / shared / strv.h

diff --git a/src/shared/strv.h b/src/shared/strv.h
index 2dc2bc6c492bf6139a679896cdbaea10e7268102..3034073d3288e5a28871769b4561b4d53d70837c 100644 (file)
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@@ -39,9 +39,11 @@ unsigned strv_length(char * const *l) _pure_;
 int strv_extend_strv(char ***a, char **b);
 int strv_extend_strv_concat(char ***a, char **b, const char *suffix);
 int strv_extend(char ***l, const char *value);
-int strv_extendf(char ***l, const char *format, ...);
+int strv_extendf(char ***l, const char *format, ...) _printf_(2,0);
 int strv_push(char ***l, char *value);
+int strv_push_prepend(char ***l, char *value);
 int strv_consume(char ***l, char *value);
+int strv_consume_prepend(char ***l, char *value);
 
 char **strv_remove(char **l, const char *s);
 char **strv_uniq(char **l);
@@ -119,3 +121,15 @@ void strv_print(char **l);
         })
 
 #define STR_IN_SET(x, ...) strv_contains(STRV_MAKE(__VA_ARGS__), x)
+
+#define FOREACH_STRING(x, ...)                               \
+        for (char **_l = ({                                  \
+                char **_ll = STRV_MAKE(__VA_ARGS__);         \
+                x = _ll ? _ll[0] : NULL;                     \
+                _ll;                                         \
+        });                                                  \
+        _l && *_l;                                           \
+        x = ({                                               \
+                _l ++;                                       \
+                _l[0];                                       \
+        }))