url: make sure pushed streams get an allocated download buffer

Follow-up to c4e6968127e876b0

When a new transfer is created, as a resuly of an acknowledged push,
that transfer needs a download buffer allocated.

Closes #5590

1 files changed, 5 insertions, 4 deletions

diff --git a/lib/multi.c b/lib/multi.c
index 121a44593..b106c9495 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -1642,10 +1642,11 @@ static CURLcode protocol_connect(struct connectdata *conn,
 }
 
 /*
- * preconnect() is called immediately before a connect starts. When a redirect
- * is followed, this is then called multiple times during a single transfer.
+ * Curl_preconnect() is called immediately before a connect starts. When a
+ * redirect is followed, this is then called multiple times during a single
+ * transfer.
  */
-static CURLcode preconnect(struct Curl_easy *data)
+CURLcode Curl_preconnect(struct Curl_easy *data)
 {
   if(!data->state.buffer) {
     data->state.buffer = malloc(data->set.buffer_size + 1);
@@ -1763,7 +1764,7 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
     case CURLM_STATE_CONNECT:
       /* Connect. We want to get a connection identifier filled in. */
       /* init this transfer. */
-      result = preconnect(data);
+      result = Curl_preconnect(data);
       if(result)
         break;