statement: avoid huge rodata array

commit b259d1a ('src: operational limit match') creates huge
array, increasing nft binary size from ~240k to ~5m on x86_64.

Use switch statement instead.

Signed-off-by: Florian Westphal <fw@strlen.de>

diff --git a/src/statement.c b/src/statement.c
index 658dc5fff5ee0ae0f6c9053a71d290bd69684db4..d18e03404d90663c4595c72e6a749fc77137a524 100644 (file)
--- a/src/statement.c
+++ b/src/statement.c
@@ -142,18 +142,23 @@ struct stmt *log_stmt_alloc(const struct location *loc)
        return stmt_alloc(loc, &log_stmt_ops);
 }
 
+static const char *get_unit(uint64_t u)
+{
+       switch (u) {
+       case 1: return "second";
+       case 60: return "minute";
+       case 60 * 60: return "hour";
+       case 60 * 60 * 24: return "day";
+       case 60 * 60 * 24 * 7: return "week";
+       }
+
+       return "error";
+}
+
 static void limit_stmt_print(const struct stmt *stmt)
 {
-       static const char *units[] = {
-               [1]                     = "second",
-               [1 * 60]                = "minute",
-               [1 * 60 * 60]           = "hour",
-               [1 * 60 * 60 * 24]      = "day",
-               [1 * 60 * 60 * 24 * 7]  = "week",
-       };
-
        printf("limit rate %" PRIu64 "/%s",
-              stmt->limit.rate, units[stmt->limit.unit]);
+              stmt->limit.rate, get_unit(stmt->limit.unit));
 }
 
 static const struct stmt_ops limit_stmt_ops = {