util: add osmo_strbuf macros to manipulate the strbuf tail
Upcoming patch adopts osmo_strbuf in logging.c, which sometimes needs to
steal and re-add trailing newline characters, and also needs to let
ctime_r() write to the buffer before updating the osmo_strbuf state.
Related: OS#6284
Related: Ib577a5e0d7450ce93ff21f37ba3262704cbf4752
Change-Id: I997707c328eab3ffa00a78fdb9a0a2cbe18404b4
diff --git a/src/core/libosmocore.map b/src/core/libosmocore.map
index fc81650..30c4927 100644
--- a/src/core/libosmocore.map
+++ b/src/core/libosmocore.map
@@ -510,6 +510,8 @@
osmo_strrb_get_nth;
_osmo_strrb_is_bufindex_valid;
osmo_strrb_is_empty;
+osmo_strbuf_drop_tail;
+osmo_strbuf_added_tail;
osmo_str_startswith;
osmo_str_to_int;
osmo_str_to_int64;