HTTP resume fix, now the range pointer may be allocated

2 files changed, 8 insertions, 1 deletions

diff --git a/lib/url.c b/lib/url.c
index 582d03da0..3865d201e 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -183,6 +183,11 @@ void static urlfree(struct UrlData *data, bool totally)
        switch off that knowledge again... */
     data->bits.httpproxy=FALSE;
   }
+  
+  if(data->bits.rangestringalloc) {
+    free(data->range);
+    data->range=NULL;
+  }
 
   if(data->ptr_proxyuserpwd) {
     free(data->ptr_proxyuserpwd);
@@ -906,7 +911,8 @@ CURLcode curl_connect(CURL *curl, CURLconnect **in_connect)
     if(!data->bits.set_range) {
       /* if it already was in use, we just skip this */
       sprintf(resumerange, "%d-", data->resume_from);
-      data->range=resumerange; /* tell ourselves to fetch this range */
+      data->range=strdup(resumerange); /* tell ourselves to fetch this range */
+      data->bits.rangestringalloc = TRUE; /* mark as allocated */
       data->bits.set_range = 1; /* switch on range usage */
     }
   }
diff --git a/lib/urldata.h b/lib/urldata.h
index 241bfc268..87e49a840 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -307,6 +307,7 @@ struct Configbits {
   bool proxystringalloc; /* the http proxy string is malloc()'ed */
   bool set_port;
   bool set_range;
+  bool rangestringalloc; /* the range string is malloc()'ed */
   bool upload;
   bool use_netrc;
   bool user_passwd;