27 lines
673 B
Diff
27 lines
673 B
Diff
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From 31532adf8636f9795ab5f077ace4e3f00148d399 Mon Sep 17 00:00:00 2001
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From: Milan Broz <gmazyland@gmail.com>
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Date: Thu, 11 Oct 2018 15:39:31 +0200
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Subject: [PATCH 062/324] Do not copy buffer if read fails.
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---
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lib/utils_io.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/lib/utils_io.c b/lib/utils_io.c
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index 1facac0..d7e1cbe 100644
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--- a/lib/utils_io.c
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+++ b/lib/utils_io.c
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@@ -184,7 +184,8 @@ ssize_t read_blockwise(int fd, size_t bsize, size_t alignment,
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out:
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free(hangover_buf);
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if (buf != orig_buf) {
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- memcpy(orig_buf, buf, length);
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+ if (ret == length)
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+ memcpy(orig_buf, buf, length);
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free(buf);
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}
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return ret;
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--
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2.19.1
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