doveadm: error to print formatted without format

This changes the segfault of `doveadm -f formatted ...` to an error.

diff --git a/src/doveadm/doveadm-print-formatted.c b/src/doveadm/doveadm-print-formatted.c
index 87e03c5f199f0f516002c133852592ba116cbaa9..28347eb81d48406c7c3db2542e6e03ac36c13904 100644 (file)
--- a/src/doveadm/doveadm-print-formatted.c
+++ b/src/doveadm/doveadm-print-formatted.c
@@ -53,6 +53,9 @@ static void doveadm_print_formatted_flush(void)
 
 static void doveadm_print_formatted_print(const char *value)
 {
+       if (ctx.format == NULL) {
+               i_fatal("formatted formatter cannot be used without a format.");
+       }
        struct var_expand_table *entry = array_idx_modifiable(&ctx.headers, ctx.idx++);
        entry->value = value;