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-rw-r--r--filter/config.Y3
-rw-r--r--filter/filter.c15
2 files changed, 17 insertions, 1 deletions
diff --git a/filter/config.Y b/filter/config.Y
index ec29ea7e..eecebf61 100644
--- a/filter/config.Y
+++ b/filter/config.Y
@@ -406,7 +406,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN,
PREPEND, FIRST, LAST, LAST_NONAGGREGATED, MATCH,
EMPTY,
FILTER, WHERE, EVAL,
- BT_ASSERT, BT_TEST_SUITE)
+ BT_ASSERT, BT_TEST_SUITE, FORMAT)
%nonassoc THEN
%nonassoc ELSE
@@ -916,6 +916,7 @@ term:
| ROA_CHECK '(' rtable ')' { $$ = f_generate_roa_check($3, NULL, NULL); }
| ROA_CHECK '(' rtable ',' term ',' term ')' { $$ = f_generate_roa_check($3, $5, $7); }
+ | FORMAT '(' term ')' { $$ = f_new_inst(); $$->code = P('f','m'); $$->a1.p = $3; }
/* | term '.' LEN { $$->code = P('P','l'); } */
diff --git a/filter/filter.c b/filter/filter.c
index 88d138a0..145ff4b3 100644
--- a/filter/filter.c
+++ b/filter/filter.c
@@ -563,6 +563,14 @@ f_rta_cow(void)
(*f_rte)->attrs = rta_do_cow((*f_rte)->attrs, f_pool);
}
+static char *
+val_format_str(struct f_val v) {
+ buffer b;
+ LOG_BUFFER_INIT(b);
+ val_format(v, &b);
+ return lp_strdup(f_pool, b.start);
+}
+
static struct tbf rl_runtime_err = TBF_DEFAULT_LOG_LIMITS;
#define runtime(fmt, ...) do { \
@@ -1477,6 +1485,13 @@ interpret(struct f_inst *what)
break;
+ case P('f','m'): /* Format */
+ ONEARG;
+
+ res.type = T_STRING;
+ res.val.s = val_format_str(v1);
+ break;
+
case P('a','s'): /* Birdtest Assert */
ONEARG;