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Message-Id: <20170615213048.2566-1-b.brachaczek@gmail.com>
Date: Thu, 15 Jun 2017 23:30:48 +0200
From: Bartosz Brachaczek <b.brachaczek@...il.com>
To: musl@...ts.openwall.com
Cc: Bartosz Brachaczek <b.brachaczek@...il.com>
Subject: [PATCH] fix iconv conversions for iso88592-iso885916
commit 97bd6b09dbe7478d5a90a06ecd9e5b59389d8eb9 refactored the table
lookup into a function and introduced an error in index computation.
the error caused garbage to be read from the table if the given charmap
had a non-zero number of elided entries.
---
src/locale/iconv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/locale/iconv.c b/src/locale/iconv.c
index 4636307f..fd2f2e01 100644
--- a/src/locale/iconv.c
+++ b/src/locale/iconv.c
@@ -153,7 +153,7 @@ static void put_32(unsigned char *s, unsigned c, int e)
static unsigned legacy_map(const unsigned char *map, unsigned c)
{
- unsigned x = c - 128 + map[-1];
+ unsigned x = c - 128 - map[-1];
x = legacy_chars[ map[x*5/4]>>2*x%8 |
map[x*5/4+1]<<8-2*x%8 & 1023 ];
return x ? x : c;
--
2.13.0
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