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1 # 2014-01-20 | |
2 # | |
3 # The author disclaims copyright to this source code. In place of | |
4 # a legal notice, here is a blessing: | |
5 # | |
6 # May you do good and not evil. | |
7 # May you find forgiveness for yourself and forgive others. | |
8 # May you share freely, never taking more than you give. | |
9 # | |
10 #*********************************************************************** | |
11 # | |
12 | |
13 set testdir [file dirname $argv0] | |
14 source $testdir/tester.tcl | |
15 set testprefix corruptI | |
16 | |
17 if {[permutation]=="mmap"} { | |
18 finish_test | |
19 return | |
20 } | |
21 | |
22 # Do not use a codec for tests in this file, as the database file is | |
23 # manipulated directly using tcl scripts (using the [hexio_write] command). | |
24 # | |
25 do_not_use_codec | |
26 database_may_be_corrupt | |
27 | |
28 # Initialize the database. | |
29 # | |
30 do_execsql_test 1.1 { | |
31 PRAGMA page_size=1024; | |
32 PRAGMA auto_vacuum=0; | |
33 CREATE TABLE t1(a); | |
34 CREATE INDEX i1 ON t1(a); | |
35 INSERT INTO t1 VALUES('abcdefghijklmnop'); | |
36 } {} | |
37 db close | |
38 | |
39 do_test 1.2 { | |
40 set offset [hexio_get_int [hexio_read test.db [expr 2*1024 + 8] 2]] | |
41 set off [expr 2*1024 + $offset + 1] | |
42 hexio_write test.db $off 7f06 | |
43 sqlite3 db test.db | |
44 catchsql { SELECT * FROM t1 WHERE a = 10 } | |
45 } {0 {}} | |
46 | |
47 do_test 1.3 { | |
48 db close | |
49 set offset [hexio_get_int [hexio_read test.db [expr 2*1024 + 8] 2]] | |
50 set off [expr 2*1024 + $offset + 1] | |
51 hexio_write test.db $off FFFF7f02 | |
52 sqlite3 db test.db | |
53 catchsql { SELECT * FROM t1 WHERE a = 10 } | |
54 } {1 {database disk image is malformed}} | |
55 | |
56 do_test 2.0 { | |
57 execsql { | |
58 CREATE TABLE r(x); | |
59 INSERT INTO r VALUES('ABCDEFGHIJK'); | |
60 CREATE INDEX r1 ON r(x); | |
61 } | |
62 set pg [db one {SELECT rootpage FROM sqlite_master WHERE name = 'r1'}] | |
63 } {5} | |
64 | |
65 do_test 2.1 { | |
66 db close | |
67 set offset [hexio_get_int [hexio_read test.db [expr (5-1)*1024 + 8] 2]] | |
68 set off [expr (5-1)*1024 + $offset + 1] | |
69 hexio_write test.db $off FFFF0004 | |
70 sqlite3 db test.db | |
71 catchsql { SELECT * FROM r WHERE x >= 10.0 } | |
72 } {1 {database disk image is malformed}} | |
73 | |
74 do_test 2.2 { | |
75 catchsql { SELECT * FROM r WHERE x >= 10 } | |
76 } {1 {database disk image is malformed}} | |
77 | |
78 if {[db one {SELECT sqlite_compileoption_used('ENABLE_OVERSIZE_CELL_CHECK')}]} { | |
79 # The following tests only work if OVERSIZE_CELL_CHECK is disabled | |
80 } else { | |
81 reset_db | |
82 do_execsql_test 3.1 { | |
83 PRAGMA auto_vacuum=0; | |
84 PRAGMA page_size = 512; | |
85 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
86 WITH s(a, b) AS ( | |
87 SELECT 2, 'abcdefghij' | |
88 UNION ALL | |
89 SELECT a+2, b FROM s WHERe a < 40 | |
90 ) | |
91 INSERT INTO t1 SELECT * FROM s; | |
92 } {} | |
93 | |
94 do_test 3.2 { | |
95 hexio_write test.db [expr 512+3] 0054 | |
96 db close | |
97 sqlite3 db test.db | |
98 execsql { INSERT INTO t1 VALUES(5, 'klmnopqrst') } | |
99 execsql { INSERT INTO t1 VALUES(7, 'klmnopqrst') } | |
100 } {} | |
101 | |
102 db close | |
103 sqlite3 db test.db | |
104 do_catchsql_test 3.3 { | |
105 INSERT INTO t1 VALUES(9, 'klmnopqrst'); | |
106 } {1 {database disk image is malformed}} | |
107 } ;# end-if !defined(ENABLE_OVERSIZE_CELL_CHECK) | |
108 | |
109 | |
110 #------------------------------------------------------------------------- | |
111 # Test that an assert() failure discovered by AFL corrupt database file | |
112 # testing has been fixed. | |
113 # | |
114 reset_db | |
115 do_execsql_test 4.0 { | |
116 PRAGMA page_size = 65536; | |
117 PRAGMA autovacuum = 0; | |
118 CREATE TABLE t1(a INTEGER PRIMARY KEY, b); | |
119 INSERT INTO t1 VALUES(-1, 'abcdefghij'); | |
120 INSERT INTO t1 VALUES(0, 'abcdefghij'); | |
121 } | |
122 | |
123 set root [db one {SELECT rootpage FROM sqlite_master}] | |
124 set offset [expr ($root-1) * 65536] | |
125 | |
126 ifcapable oversize_cell_check { | |
127 set res {1 {database disk image is malformed}} | |
128 } else { | |
129 set res {0 {}} | |
130 } | |
131 do_test 4.1 { | |
132 db close | |
133 hexio_write test.db [expr $offset + 8 + 2] 0000 | |
134 hexio_write test.db [expr $offset + 5] 0000 | |
135 sqlite3 db test.db | |
136 catchsql { DELETE FROM t1 WHERE a=0 } | |
137 } $res | |
138 | |
139 | |
140 #------------------------------------------------------------------------- | |
141 # Database properties: | |
142 # | |
143 # * Incremental vacuum mode. | |
144 # * Database root table has a single leaf page. | |
145 # * Free list consists of a single trunk page. | |
146 # | |
147 # The db is then corrupted by adding the root table leaf page as a free-list | |
148 # leaf page (so that it is referenced twice). | |
149 # | |
150 # Then, a new table is created. The new root page is the current free-list | |
151 # trunk. This means that the root table leaf page is made into the new | |
152 # free list trunk, which corrupts its header. Then, when the new entry is | |
153 # inserted into the root table, things would get chaotic. | |
154 # | |
155 reset_db | |
156 do_test 5.0 { | |
157 execsql { | |
158 PRAGMA page_size = 512; | |
159 PRAGMA auto_vacuum = 2; | |
160 } | |
161 for {set i 3} {1} {incr i} { | |
162 execsql "CREATE TABLE t${i}(x)" | |
163 if {[db one {PRAGMA page_count}]>$i} break | |
164 } | |
165 set nPage [db one {PRAGMA page_count}] | |
166 execsql { | |
167 CREATE TABLE t100(x); | |
168 DROP TABLE t100; | |
169 } | |
170 } {} | |
171 | |
172 do_execsql_test 5.1 { | |
173 PRAGMA page_count | |
174 } [expr $nPage+1] | |
175 | |
176 do_test 5.2 { | |
177 # The last page of the db is now the only leaf of the sqlite_master table. | |
178 # Corrupt the db by adding it to the free-list as well (the second last | |
179 # page of the db is the free-list trunk). | |
180 db close | |
181 hexio_write test.db [expr 512*($nPage-1)] [ | |
182 format "%.8X%.8X%.8X" 0 1 [expr $nPage+1] | |
183 ] | |
184 } {12} | |
185 | |
186 do_test 5.3 { | |
187 sqlite3 db test.db | |
188 catchsql { CREATE TABLE tx(x); } | |
189 } {1 {database disk image is malformed}} | |
190 | |
191 | |
192 #------------------------------------------------------------------------- | |
193 # Set the payload size of a cell to just less than 2^32 bytes (not | |
194 # possible in an uncorrupted db). Then try to delete the cell. At one | |
195 # point this led to an integer overflow that caused an assert() to fail. | |
196 # | |
197 reset_db | |
198 do_execsql_test 6.0 { | |
199 PRAGMA page_size = 512; | |
200 PRAGMA auto_vacuum=0; | |
201 CREATE TABLE t1(x); | |
202 INSERT INTO t1 VALUES(zeroblob(300)); | |
203 INSERT INTO t1 VALUES(zeroblob(600)); | |
204 } {} | |
205 do_test 6.1 { | |
206 db close | |
207 hexio_write test.db 616 8FFFFFFF7F02 | |
208 sqlite3 db test.db | |
209 breakpoint | |
210 execsql { DELETE FROM t1 WHERE rowid=2 } | |
211 } {} | |
212 | |
213 #------------------------------------------------------------------------- | |
214 # See what happens if the sqlite_master entry associated with a PRIMARY | |
215 # KEY or UNIQUE index is removed. | |
216 # | |
217 reset_db | |
218 do_execsql_test 7.0 { | |
219 PRAGMA auto_vacuum=0; | |
220 CREATE TABLE t1(x PRIMARY KEY, y); | |
221 INSERT INTO t1 VALUES('a', 'A'); | |
222 INSERT INTO t1 VALUES('b', 'A'); | |
223 INSERT INTO t1 VALUES('c', 'A'); | |
224 SELECT name FROM sqlite_master; | |
225 } {t1 sqlite_autoindex_t1_1} | |
226 do_execsql_test 7.1 { | |
227 PRAGMA writable_schema = 1; | |
228 DELETE FROM sqlite_master WHERE name = 'sqlite_autoindex_t1_1'; | |
229 } | |
230 do_test 7.2 { | |
231 db close | |
232 sqlite3 db test.db | |
233 catchsql { UPDATE t1 SET x='d' AND y='D' WHERE rowid = 2 } | |
234 } {1 {database disk image is malformed}} | |
235 | |
236 #------------------------------------------------------------------------- | |
237 # At one point an assert() would fail if attempt was made to free page 1. | |
238 # | |
239 reset_db | |
240 do_execsql_test 8.0 { | |
241 PRAGMA auto_vacuum=0; | |
242 CREATE TABLE t1(x); | |
243 INSERT INTO t1 VALUES(zeroblob(300)); | |
244 INSERT INTO t1 VALUES(zeroblob(300)); | |
245 INSERT INTO t1 VALUES(zeroblob(300)); | |
246 INSERT INTO t1 VALUES(zeroblob(300)); | |
247 } {} | |
248 | |
249 do_test 8.1 { | |
250 db close | |
251 hexio_write test.db [expr 1024 + 8] 00000001 | |
252 sqlite3 db test.db | |
253 catchsql { DELETE FROM t1 } | |
254 } {1 {database disk image is malformed}} | |
255 | |
256 do_test 8.2 { | |
257 db close | |
258 sqlite3 db test.db | |
259 execsql { PRAGMA integrity_check } | |
260 } {/.*in database main.*/} | |
261 | |
262 | |
263 finish_test | |
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