mirror of https://github.com/OpenIPC/firmware.git
32 lines
814 B
Diff
32 lines
814 B
Diff
From 949ae648bf7c654b8fae607a0988bfa672607156 Mon Sep 17 00:00:00 2001
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From: Patrick Rauscher <prauscher@prauscher.de>
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Date: Fri, 18 Aug 2017 17:31:23 +0200
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Subject: [PATCH] Prepend zero-byte before unsigned integers
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fixes #8
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Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
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---
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mib.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/mib.c b/mib.c
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index 7d2e513..a9ffbe2 100644
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--- a/mib.c
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+++ b/mib.c
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@@ -207,6 +207,11 @@ static int encode_unsigned(data_t *data, int type, unsigned int ticks_value)
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else
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length = 1;
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+ /* check if the integer could be interpreted negative during a signed decode and prepend a zero-byte if necessary */
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+ if ((ticks_value >> (8 * (length - 1))) & 0x80) {
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+ length++;
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+ }
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+
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*buffer++ = type;
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*buffer++ = length;
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while (length--)
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--
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2.13.2
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