René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Test crashes when using empty GET parameter","articleBody":"The test program (and others, too) crashes when used in the following way:\n./Test \u0026\ncurl http://localhost:8080?asdf\nFast fix as I am not a C++ expert:\n\n```\ndiff --git a/src/webserver.cpp b/src/webserver.cpp\nindex 9858bff..a0ea97f 100644\n--- a/src/webserver.cpp\n+++ b/src/webserver.cpp\n@@ -749,9 +749,16 @@ int webserver::build_request_args (\n         void *cls,\n         enum MHD_ValueKind kind,\n         const char *key,\n-        const char *value\n+        const char *orig_value\n )\n {\n+    int size;\n+    char *value;\n+    if (orig_value == NULL)\n+        value = (char*) \"\";\n+    else\n+        value = (char*) orig_value;\n+\n     details::modded_request* mr = static_cast\u003cdetails::modded_request*\u003e(cls);\n     {\n         char buf[strlen(key) + strlen(value) + 3];\n@@ -766,7 +773,11 @@ int webserver::build_request_args (\n             mr-\u003edhr-\u003equerystring += string(buf);\n         }\n     }\n-    int size = internal_unescaper((void*) mr-\u003ews, (char*) value);\n+\n+    if (orig_value == NULL)\n+        size = 0;\n+    else\n+        size = internal_unescaper((void*) mr-\u003ews, value);\n     mr-\u003edhr-\u003eset_arg(key, string(value, size));\n     return MHD_YES;\n }\n\n```\n","author":{"url":"https://github.com/btwotch","@type":"Person","name":"btwotch"},"datePublished":"2014-03-03T22:04:17.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/44/libhttpserver/issues/44"}