From 57d9574839f089624a6c5ed39a754ca3011c974c Mon Sep 17 00:00:00 2001
From: Jason Ish <ish@unx.ca>
Date: Fri, 2 Feb 2018 12:45:35 -0600
Subject: [PATCH] rust/json: expose more of jansson to rust

---
 rust/src/json.rs  | 17 +++++++++++++++++
 src/output-json.c |  9 +++++++++
 src/output-json.h |  1 +
 3 files changed, 27 insertions(+)

diff --git a/rust/src/json.rs b/rust/src/json.rs
index 1119add5c3..38ebda3507 100644
--- a/rust/src/json.rs
+++ b/rust/src/json.rs
@@ -35,6 +35,7 @@ extern {
 
     fn json_string(value: *const c_char) -> *mut JsonT;
     fn json_integer(val: u64) -> *mut JsonT;
+    fn SCJsonDecref(value: *mut JsonT);
     fn SCJsonBool(val: bool) -> *mut JsonT;
 }
 
@@ -44,6 +45,10 @@ pub struct Json {
 
 impl Json {
 
+    pub fn decref(val: Json) {
+        unsafe{SCJsonDecref(val.js)};
+    }
+
     pub fn object() -> Json {
         return Json{
             js: unsafe{json_object()},
@@ -56,6 +61,18 @@ impl Json {
         }
     }
 
+    pub fn string(val: &str) -> Json {
+        return Json{
+            js: unsafe{json_string(to_cstring(val.as_bytes()).as_ptr())}
+        };
+    }
+
+    pub fn string_from_bytes(val: &[u8]) -> Json {
+        return Json{
+            js: unsafe{json_string(to_cstring(val).as_ptr())}
+        };
+    }
+
     pub fn unwrap(&self) -> *mut JsonT {
         return self.js;
     }
diff --git a/src/output-json.c b/src/output-json.c
index 2c6291a8e5..563f67c7f1 100644
--- a/src/output-json.c
+++ b/src/output-json.c
@@ -108,6 +108,15 @@ json_t *SCJsonBool(int val)
     return (val ? json_true() : json_false());
 }
 
+/**
+ * Wrap json_decref. This is mainly to expose this function to Rust as its
+ * defined in the Jansson header file as an inline function.
+ */
+void SCJsonDecref(json_t *json)
+{
+    json_decref(json);
+}
+
 /* Default Sensor ID value */
 static int64_t sensor_id = -1; /* -1 = not defined */
 
diff --git a/src/output-json.h b/src/output-json.h
index dffb24004d..c4b55c61c7 100644
--- a/src/output-json.h
+++ b/src/output-json.h
@@ -67,6 +67,7 @@ typedef struct OutputJsonCtx_ {
 } OutputJsonCtx;
 
 json_t *SCJsonBool(int val);
+void SCJsonDecref(json_t *js);
 
 #endif /* HAVE_LIBJANSSON */