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From: Michael Forney <mforney@mforney.org>
Date: Thu, 11 Feb 2021 05:52:02 +0000
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Subject: [9front] audio/flacenc: fix error check for fseeko
Reply-To: 9front@9front.org
Precedence: bulk

fseeko returns 0 on success, not the new stream position.

This allows flacenc to update the streaminfo block when it is finished
(for example to set the number of samples and checksum).

diff 39dc377d3b0a9384a9761a5d28810e3a46b19739 da45a346b7551889d2599eb049ecaea63a2a55df
--- a/sys/src/cmd/audio/flacenc/flacenc.c	Wed Feb 10 01:00:05 2021
+++ b/sys/src/cmd/audio/flacenc/flacenc.c	Wed Feb 10 21:52:02 2021
@@ -18,7 +18,7 @@
 static FLAC__StreamEncoderSeekStatus
 encseek(FLAC__StreamEncoder *enc, FLAC__uint64 absolute_byte_offset, void *client_data)
 {
-	return fseeko(stdout, absolute_byte_offset, SEEK_SET) != absolute_byte_offset ?
+	return fseeko(stdout, absolute_byte_offset, SEEK_SET) != 0 ?
 		FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED :
 		FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
 }