[PATCH v2 1/2] debuginfod-client.c: Fix download size not correctly fallbacks to x-debuginfod-size header

[lilydjwg <lilydjwg@gmail.com>]

Signed-off-by: lilydjwg <lilydjwg@gmail.com>
---
 ChangeLog                      | 5 +++++
 debuginfod/debuginfod-client.c | 6 +++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 10c23002..05697a02 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2023-03-29  lilydjwg  <lilydjwg@gmail.com>
+
+	* debuginfod/debuginfod-client.c: Fix download size not correctly
+	fallbacks to x-debuginfod-size header
+
 2023-03-03  Mark Wielaard  <mark@klomp.org>
 
 	* NEWS: Add ELFCOMPRESS_ZSTD support for libelf and elfcompress.
diff --git a/debuginfod/debuginfod-client.c b/debuginfod/debuginfod-client.c
index b33408eb..d6d3f0dd 100644
--- a/debuginfod/debuginfod-client.c
+++ b/debuginfod/debuginfod-client.c
@@ -1467,7 +1467,7 @@ debuginfod_query_server (debuginfod_client *c,
           goto out2;
         }
 
-      long dl_size = 0;
+      long dl_size = -1;
       if (target_handle && (c->progressfn || maxsize > 0))
         {
           /* Get size of file being downloaded. NB: If going through
@@ -1486,7 +1486,7 @@ debuginfod_query_server (debuginfod_client *c,
           curl_res = curl_easy_getinfo(target_handle,
                                        CURLINFO_CONTENT_LENGTH_DOWNLOAD,
                                        &cl);
-          if (curl_res == CURLE_OK)
+          if (curl_res == CURLE_OK && cl >= 0)
             dl_size = (cl >= (double)(LONG_MAX+1UL) ? LONG_MAX : (long)cl);
 #endif
           /* If Content-Length is -1, try to get the size from
@@ -1527,7 +1527,7 @@ debuginfod_query_server (debuginfod_client *c,
 
             }
 
-          if ((*c->progressfn) (c, pa, dl_size))
+          if ((*c->progressfn) (c, pa, dl_size == -1 ? 0 : dl_size))
 	    {
 	      c->progressfn_cancel = true;
               break;
-- 
2.40.0