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From 1986c6384122947b10804cbc5c4d7af85e097404 Mon Sep 17 00:00:00 2001
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From: Ondrej Dubaj <odubaj@redhat.com>
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Date: Mon, 20 Jan 2020 10:09:55 +0100
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Subject: [PATCH] Fix the zipfile extension so that INSERT works even if the
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pathname of
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the file being inserted is a NULL. Bug discovered by the
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Yongheng and Rui fuzzer.
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---
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ext/misc/zipfile.c | 1 +
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test/zipfile.test | 13 +++++++++++++
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2 files changed, 14 insertions(+)
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diff --git a/ext/misc/zipfile.c b/ext/misc/zipfile.c
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index e57dc38..6f48d0f 100644
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--- a/ext/misc/zipfile.c
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+++ b/ext/misc/zipfile.c
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@@ -1618,6 +1618,7 @@ static int zipfileUpdate(
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if( rc==SQLITE_OK ){
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zPath = (const char*)sqlite3_value_text(apVal[2]);
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+ if( zPath==0 ) zPath = "";
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nPath = (int)strlen(zPath);
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mTime = zipfileGetTime(apVal[4]);
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}
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diff --git a/test/zipfile.test b/test/zipfile.test
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index 2bab066..5bca10b 100644
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--- a/test/zipfile.test
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+++ b/test/zipfile.test
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@@ -795,4 +795,17 @@ if {$tcl_platform(platform)!="windows"} {
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} {. ./x1.txt ./x2.txt}
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}
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+# 2019-12-18 Yongheng and Rui fuzzer
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+#
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+do_execsql_test 13.10 {
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+ DROP TABLE IF EXISTS t0;
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+ DROP TABLE IF EXISTS t1;
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+ CREATE TABLE t0(a,b,c,d,e,f,g);
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+ REPLACE INTO t0(c,b,f) VALUES(10,10,10);
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+ CREATE VIRTUAL TABLE t1 USING zipfile('h.zip');
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+ REPLACE INTO t1 SELECT * FROM t0;
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+ SELECT quote(name),quote(mode),quote(mtime),quote(sz),quote(rawdata),
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+ quote(data),quote(method) FROM t1;
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+} {'' 10 10 2 X'3130' X'3130' 0}
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+
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finish_test
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--
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2.19.1
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