git-compat-util: add xstrdup_or_null helper

diff --git a/http.h b/http.h
index a82888445e9f04acfe27e36b1f274ffb9659cddf..473179b14d5648635853af4c5bf425116c32b6fe 100644 (file)
--- a/http.h
+++ b/http.h
@@ -13,8 +13,7 @@
 /*
  * We detect based on the cURL version if multi-transfer is
  * usable in this implementation and define this symbol accordingly.
- * This is not something Makefile should set nor users should pass
- * via CFLAGS.
+ * This shouldn't be set by the Makefile or by the user (e.g. via CFLAGS).
  */
 #undef USE_CURL_MULTI
 
@@ -144,6 +143,13 @@ struct http_get_options {
        /* If non-NULL, returns the content-type of the response. */
        struct strbuf *content_type;
 
+       /*
+        * If non-NULL, and content_type above is non-NULL, returns
+        * the charset parameter from the content-type. If none is
+        * present, returns an empty string.
+        */
+       struct strbuf *charset;
+
        /*
         * If non-NULL, returns the URL we ended up at, including any
         * redirects we followed.