From 6ed1eb8829dee351b54e183bc42c007cb306aaa5 Mon Sep 17 00:00:00 2001
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From: Zhang Xiao <xiao.zhang@windriver.com>
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Date: Wed, 11 Jun 2014 14:01:16 +0800
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Subject: [PATCH] tftp-hpa: bug fix on separated CR and LF
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In ascii mode, if the CR and LF was separated into different transfer
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blocks, LF will be just dropped instead of replacing the previous CR.
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Add a checking on the first character to fix it.
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Upstream-Status: pending
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Signed-off-by: Zhang Xiao <xiao.zhang@windriver.com>
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---
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common/tftpsubs.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/common/tftpsubs.c b/common/tftpsubs.c
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index b4d4ffe..b4ea3f2 100644
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--- a/common/tftpsubs.c
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+++ b/common/tftpsubs.c
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@@ -207,6 +207,14 @@ int write_behind(FILE * file, int convert)
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p = buf;
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ct = count;
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count = 0;
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+
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+ /* Check the first character together with prevchar */
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+ c = *p;
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+ if ((prevchar == '\r') && (c == '\n')) {
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+ lseek(fileno(file), -1, SEEK_CUR);
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+ count++;
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+ }
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+
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while (ct--) { /* loop over the buffer */
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c = *p++; /* pick up a character */
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if (prevchar == '\r') { /* if prev char was cr */
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--
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1.8.5.2.233.g932f7e4
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