From be2213472f825fab3cff61029a78954d6f079296 Mon Sep 17 00:00:00 2001 From: Lukas Stockner Date: Wed, 8 Dec 2021 23:35:47 +0100 Subject: Fix T93858: Zstd-compressed .blend files from external tools aren't recognized The issue here was that after the seek table check, the underlying file wasn't rewound to the start, so the code that checks for the BLENDER header immediately reaches EOF and fails. Since Blender always writes files with a seek table, this bug isn't triggered by files saved in Blender itself. However, files compressed in external tools generally don't have a seek table. --- source/blender/blenlib/intern/filereader_zstd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/source/blender/blenlib/intern/filereader_zstd.c b/source/blender/blenlib/intern/filereader_zstd.c index 55ce32713d9..5a04f5b11f3 100644 --- a/source/blender/blenlib/intern/filereader_zstd.c +++ b/source/blender/blenlib/intern/filereader_zstd.c @@ -331,5 +331,8 @@ FileReader *BLI_filereader_new_zstd(FileReader *base) } zstd->reader.close = zstd_close; + /* Rewind after the seek table check so that zstd_read starts at the file's start. */ + zstd->base->seek(zstd->base, 0, SEEK_SET); + return (FileReader *)zstd; } -- cgit v1.2.3