initial importHEADmaster

A bit messy and missing error handling in some places.

1 files changed, 42 insertions, 0 deletions

diff --git a/json_curl.c b/json_curl.c
new file mode 100644
index 0000000..1911b0f
--- /dev/null
+++ b/json_curl.c
@@ -0,0 +1,42 @@
+#include "json_curl.h"
+
+#include <stdlib.h>
+#include <curl/curl.h>
+#include <json-c/json.h>
+
+struct json_builder {
+	json_object *obj;
+	json_tokener *tok;
+};
+
+static size_t parse_cb(char *data, size_t size, size_t nmemb, void *userdata)
+{
+	size_t rsize = size * nmemb;
+	struct json_builder *jb = userdata;
+
+	// extra data after the first valid object is ignored.
+	if (!jb->obj) {
+		json_object *tmp = json_tokener_parse_ex(jb->tok, data, rsize);
+		if (tmp)
+			jb->obj = tmp;
+		else if (json_tokener_get_error(jb->tok) != json_tokener_continue)
+			return 0;
+	}
+
+	return rsize;
+}
+
+json_object *json_curl_perform(CURL *curl, const char *uri)
+{
+	struct json_builder jb = { NULL, json_tokener_new() };
+
+	if (uri) curl_easy_setopt(curl, CURLOPT_URL, uri);
+	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, parse_cb);
+	curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&jb);
+
+	CURLcode res = curl_easy_perform(curl);
+	json_tokener_free(jb.tok);
+	if (res != CURLE_OK) return NULL;
+
+	return jb.obj;
+}