Fix crash when reading the empty tree

diff --git a/http.c b/http.c
index 14a7669cd427e101985d4acf8f3da3314937eeaa..0cb42a85d146c406f8268be423aabeb9e0e90dd0 100644 (file)
--- a/http.c
+++ b/http.c
@@ -195,6 +195,8 @@ static CURL* get_curl_handle(void)
        if (getenv("GIT_CURL_VERBOSE"))
                curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
 
+       curl_easy_setopt(result, CURLOPT_USERAGENT, GIT_USER_AGENT);
+
        return result;
 }
 
@@ -339,6 +341,7 @@ struct active_request_slot *get_active_slot(void)
        slot->in_use = 1;
        slot->local = NULL;
        slot->results = NULL;
+       slot->finished = NULL;
        slot->callback_data = NULL;
        slot->callback_func = NULL;
        curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
@@ -389,8 +392,10 @@ void run_active_slot(struct active_request_slot *slot)
        fd_set excfds;
        int max_fd;
        struct timeval select_timeout;
+       int finished = 0;
 
-       while (slot->in_use) {
+       slot->finished = &finished;
+       while (!finished) {
                data_received = 0;
                step_active_slots();
 
@@ -442,6 +447,9 @@ static void finish_active_slot(struct active_request_slot *slot)
        closedown_active_slot(slot);
         curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
 
+       if (slot->finished != NULL)
+               (*slot->finished) = 1;
+
        /* Store slot results so they can be read after the slot is reused */
        if (slot->results != NULL) {
                slot->results->curl_result = slot->curl_result;