1 files changed, 107 insertions, 0 deletions
diff --git a/wsutil/json_dumper.h b/wsutil/json_dumper.h
new file mode 100644
index 0000000000..98ce99a3e7
--- /dev/null
+++ b/wsutil/json_dumper.h
@@ -0,0 +1,107 @@
+/* wsjson.h
+ * Routines for serializing data as JSON.
+ *
+ * Copyright 2018, Peter Wu <peter@lekensteyn.nl>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef __JSON_DUMPER_H__
+#define __JSON_DUMPER_H__
+
+#include "ws_symbol_export.h"
+#include <glib.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Example:
+ *
+ *  json_dumper dumper = {
+ *      .output_file = stdout,
+ *      .flags = JSON_DUMPER_FLAGS_PRETTY_PRINT,
+ *  };
+ *  json_dumper_begin_object(&dumper);
+ *  json_dumper_set_member_name(&dumper, "key");
+ *  json_dumper_value_string(&dumper, "value");
+ *  json_dumper_set_member_name(&dumper, "array");
+ *  json_dumper_begin_array(&dumper);
+ *  json_dumper_value_anyf(&dumper, "true");
+ *  json_dumper_value_anyf(&dumper, "1.0");
+ *  json_dumper_begin_object(&dumper);
+ *  json_dumper_end_object(&dumper);
+ *  json_dumper_begin_array(&dumper);
+ *  json_dumper_end_array(&dumper);
+ *  json_dumper_end_array(&dumper);
+ *  json_dumper_end_object(&dumper);
+ *  json_dumper_finish(&dumper);
+ */
+
+/** Maximum object/array nesting depth. */
+#define JSON_DUMPER_MAX_DEPTH   15
+typedef struct json_dumper {
+    FILE   *output_file;    /**< Output file, must be set. */
+#define JSON_DUMPER_FLAGS_PRETTY_PRINT  (1 << 0)    /* Enable pretty printing. */
+    int     flags;
+    /* for internal use, initialize with zeroes. */
+    int     current_depth;
+    guint8  state[JSON_DUMPER_MAX_DEPTH];
+} json_dumper;
+
+WS_DLL_PUBLIC void
+json_dumper_begin_object(json_dumper *dumper);
+
+WS_DLL_PUBLIC void
+json_dumper_set_member_name(json_dumper *dumper, const char *name);
+
+WS_DLL_PUBLIC void
+json_dumper_end_object(json_dumper *dumper);
+
+WS_DLL_PUBLIC void
+json_dumper_begin_array(json_dumper *dumper);
+
+WS_DLL_PUBLIC void
+json_dumper_end_array(json_dumper *dumper);
+
+WS_DLL_PUBLIC void
+json_dumper_value_string(json_dumper *dumper, const char *value);
+
+/**
+ * Dump number, "true", "false" or "null" values.
+ */
+WS_DLL_PUBLIC void
+json_dumper_value_anyf(json_dumper *dumper, const char *format, ...)
+G_GNUC_PRINTF(2, 3);
+
+/**
+ * Finishes dumping data. Returns TRUE if everything is okay and FALSE if
+ * something went wrong (open/close mismatch, missing values, etc.).
+ */
+WS_DLL_PUBLIC gboolean
+json_dumper_finish(json_dumper *dumper);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __JSON_DUMPER_H__ */
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */