network: introduce hashmap_find_free_section_line()

1 files changed, 12 insertions, 0 deletions

diff --git a/src/network/networkd-util.c b/src/network/networkd-util.c
index ce9319d942..bae4ee5cba 100644
--- a/src/network/networkd-util.c
+++ b/src/network/networkd-util.c
@@ -151,3 +151,15 @@ int network_config_section_new(const char *filename, unsigned line, NetworkConfi
 void network_config_section_free(NetworkConfigSection *cs) {
         free(cs);
 }
+
+unsigned hashmap_find_free_section_line(Hashmap *hashmap) {
+        NetworkConfigSection *cs;
+        unsigned n = 0;
+        void *entry;
+
+        HASHMAP_FOREACH_KEY(entry, cs, hashmap)
+                if (n < cs->line)
+                        n = cs->line;
+
+        return n + 1;
+}