[Qemu-block] [PATCH for-3.1 v10 28/31] block/curl: Implement bdrv_refresh_filename()

[Max Reitz]

Signed-off-by: Max Reitz <mre...@redhat.com>
Reviewed-by: Alberto Garcia <be...@igalia.com>
---
 block/curl.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/block/curl.c b/block/curl.c
index 13fca02aba..fcb8ad501b 100644
--- a/block/curl.c
+++ b/block/curl.c
@@ -961,6 +961,23 @@ static int64_t curl_getlength(BlockDriverState *bs)
     return s->len;
 }
 
+static void curl_refresh_filename(BlockDriverState *bs)
+{
+    BDRVCURLState *s = bs->opaque;
+
+    /* "readahead" and "timeout" do not change the guest-visible data,
+     * so ignore them */
+    if (s->sslverify != CURL_BLOCK_OPT_SSLVERIFY_DEFAULT ||
+        s->cookie || s->username || s->password || s->proxyusername ||
+        s->proxypassword)
+    {
+        return;
+    }
+
+    pstrcpy(bs->exact_filename, sizeof(bs->exact_filename), s->url);
+}
+
+
 static const char *const curl_strong_runtime_opts[] = {
     CURL_BLOCK_OPT_URL,
     CURL_BLOCK_OPT_SSLVERIFY,
@@ -989,6 +1006,7 @@ static BlockDriver bdrv_http = {
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
 
+    .bdrv_refresh_filename      = curl_refresh_filename,
     .strong_runtime_opts        = curl_strong_runtime_opts,
 };
 
@@ -1007,6 +1025,7 @@ static BlockDriver bdrv_https = {
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
 
+    .bdrv_refresh_filename      = curl_refresh_filename,
     .strong_runtime_opts        = curl_strong_runtime_opts,
 };
 
@@ -1025,6 +1044,7 @@ static BlockDriver bdrv_ftp = {
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
 
+    .bdrv_refresh_filename      = curl_refresh_filename,
     .strong_runtime_opts        = curl_strong_runtime_opts,
 };
 
@@ -1043,6 +1063,7 @@ static BlockDriver bdrv_ftps = {
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
 
+    .bdrv_refresh_filename      = curl_refresh_filename,
     .strong_runtime_opts        = curl_strong_runtime_opts,
 };
 
-- 
2.17.1