gopher: always include the entire gopher-path in request

After the migration to URL API all octets in the selector after the
first `?' were interpreted as query and accidentally discarded and not
passed to the server.

Add a gopherpath to always concatenate possible path and query URL
pieces.

Fixes #3369
Closes #3370

lib/gopher.c

@@ -31,9 +31,11 @@
 #include "progress.h"
 #include "gopher.h"
 #include "select.h"
+#include "strdup.h"
 #include "url.h"
 #include "escape.h"
 #include "warnless.h"
+#include "curl_printf.h"
 #include "curl_memory.h"
 /* The last #include file should be: */
 #include "memdebug.h"
@@ -78,7 +80,9 @@ static CURLcode gopher_do(struct connectdata *conn, bool *done)
   curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
 
   curl_off_t *bytecount = &data->req.bytecount;
+  char *gopherpath;
   char *path = data->state.up.path;
+  char *query = data->state.up.query;
   char *sel = NULL;
   char *sel_org = NULL;
   ssize_t amount, k;
@@ -86,8 +90,16 @@ static CURLcode gopher_do(struct connectdata *conn, bool *done)
 
   *done = TRUE; /* unconditionally */
 
+  if(path && query)
+    gopherpath = aprintf("%s?%s", path, query);
+  else
+    gopherpath = strdup(path);
+
+  if(!gopherpath)
+    return CURLE_OUT_OF_MEMORY;
+
   /* Create selector. Degenerate cases: / and /1 => convert to "" */
-  if(strlen(path) <= 2) {
+  if(strlen(gopherpath) <= 2) {
     sel = (char *)"";
     len = strlen(sel);
   }
@@ -95,11 +107,12 @@ static CURLcode gopher_do(struct connectdata *conn, bool *done)
     char *newp;
 
     /* Otherwise, drop / and the first character (i.e., item type) ... */
-    newp = path;
+    newp = gopherpath;
     newp += 2;
 
     /* ... and finally unescape */
     result = Curl_urldecode(data, newp, 0, &sel, &len, FALSE);
+    free(gopherpath);
     if(result)
       return result;
     sel_org = sel;