tool_getparam: -i is not OK if -J is used

Reported-by: sn on hackerone
Bug: https://curl.haxx.se/docs/CVE-2020-8177.html

1 files changed, 4 insertions, 18 deletions

diff --git a/src/tool_cb_hdr.c b/src/tool_cb_hdr.c
index 3b1023888..b80707fde 100644
--- a/src/tool_cb_hdr.c
+++ b/src/tool_cb_hdr.c
@@ -186,25 +186,11 @@ size_t tool_header_cb(char *ptr, size_t size, size_t nmemb, void *userdata)
       filename = parse_filename(p, len);
       if(filename) {
         if(outs->stream) {
-          int rc;
-          /* already opened and possibly written to */
-          if(outs->fopened)
-            fclose(outs->stream);
-          outs->stream = NULL;
-
-          /* rename the initial file name to the new file name */
-          rc = rename(outs->filename, filename);
-          if(rc != 0) {
-            warnf(per->config->global, "Failed to rename %s -> %s: %s\n",
-                  outs->filename, filename, strerror(errno));
-          }
-          if(outs->alloc_filename)
-            Curl_safefree(outs->filename);
-          if(rc != 0) {
-            free(filename);
-            return failure;
-          }
+          /* indication of problem, get out! */
+          free(filename);
+          return failure;
         }
+
         outs->is_cd_filename = TRUE;
         outs->s_isreg = TRUE;
         outs->fopened = FALSE;