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From 725c7dbb95bfaf8b4bb7b04820e3a00cceea9ce6 Mon Sep 17 00:00:00 2001
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From: Erik de Castro Lopo <erikd@mega-nerd.com>
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Date: Wed, 24 Dec 2014 21:02:35 +1100
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Subject: [PATCH] src/file_io.c : Prevent potential divide-by-zero.
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Closes: https://github.com/erikd/libsndfile/issues/92
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---
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 src/file_io.c | 5 ++++-
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 1 file changed, 4 insertions(+), 1 deletion(-)
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diff --git a/src/file_io.c b/src/file_io.c
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index 26d3d6d..6ccab78 100644
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--- a/src/file_io.c
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+++ b/src/file_io.c
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@@ -1322,6 +1322,9 @@ psf_fwrite (const void *ptr, sf_count_t bytes, sf_count_t items, SF_PRIVATE *psf
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 {	sf_count_t total = 0 ;
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 	ssize_t	count ;
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+	if (bytes == 0 || items == 0)
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+		return 0 ;
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+
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 	if (psf->virtual_io)
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 		return psf->vio.write (ptr, bytes*items, psf->vio_user_data) / bytes ;
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