altsvc: clone setting in curl_easy_duphandlebagder/altsvc-duphandle

The cache content is not duplicated, like other caches, but the setting
and specified file name are.

Test 1908 is extended to verify this somewhat. Since the duplicated
handle gets the same file name, the test unfortunately overwrites the
same file twice (with different contents) which makes it hard to check
automatically.

Closes #5923

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/easy.c b/lib/easy.c
index a69eb9e56..4da26f914 100644
--- a/lib/easy.c
+++ b/lib/easy.c
@@ -78,6 +78,7 @@
 #include "system_win32.h"
 #include "http2.h"
 #include "dynbuf.h"
+#include "altsvc.h"
 
 /* The last 3 #include files should be in this order */
 #include "curl_printf.h"
@@ -883,6 +884,15 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
       goto fail;
   }
 
+#ifdef USE_ALTSVC
+  if(data->asi) {
+    outcurl->asi = Curl_altsvc_init();
+    if(!outcurl->asi)
+      goto fail;
+    if(outcurl->set.str[STRING_ALTSVC])
+      (void)Curl_altsvc_load(outcurl->asi, outcurl->set.str[STRING_ALTSVC]);
+  }
+#endif
   /* Clone the resolver handle, if present, for the new handle */
   if(Curl_resolver_duphandle(outcurl,
                              &outcurl->state.resolver,
@@ -930,6 +940,7 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
     Curl_dyn_free(&outcurl->state.headerb);
     Curl_safefree(outcurl->change.url);
     Curl_safefree(outcurl->change.referer);
+    Curl_altsvc_cleanup(&outcurl->asi);
     Curl_freeset(outcurl);
     free(outcurl);
   }