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+# 2017-03-03
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+# May you do good and not evil.
+# May you find forgiveness for yourself and forgive others.
+# May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptK
+
+if {[permutation]=="mmap"} {
+ finish_test
+ return
+}
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+database_may_be_corrupt
+
+# Initialize the database.
+#
+do_execsql_test 1.1 {
+ PRAGMA page_size=1024;
+ PRAGMA auto_vacuum=0;
+ CREATE TABLE t1(x);
+
+ INSERT INTO t1 VALUES(randomblob(20));
+ INSERT INTO t1 VALUES(randomblob(100)); -- make this into a free slot
+ INSERT INTO t1 VALUES(randomblob(27)); -- this one will be corrupt
+ INSERT INTO t1 VALUES(randomblob(800));
+
+ DELETE FROM t1 WHERE rowid=2; -- free the 100 byte slot
+ PRAGMA page_count
+} {2}
+
+
+# Corrupt the database so that the blob stored immediately before
+# the free slot (rowid==3) has an overlarge length field. So that
+# we can use sqlite3_blob_write() to manipulate the size field of
+# the free slot.
+#
+# Then use sqlite3_blob_write() to set the size of said free slot
+# to 24 bytes (instead of the actual 100).
+#
+# Then use the new 24 byte slot. Leaving the in-memory version of
+# the page with zero free slots and a large nFree value. Then try
+# to allocate another slot to get to defragmentPage().
+#
+do_test 1.2 {
+ db close
+ hexio_write test.db [expr 1024 + 0x360] 21
+ hexio_write test.db [expr 1024 + 0x363] [format %x [expr 31*2 + 12]]
+ sqlite3 db test.db
+
+ set fd [db incrblob t1 x 3]
+ fconfigure $fd -translation binary -encoding binary
+ seek $fd 30
+ puts -nonewline $fd "\x18"
+ close $fd
+} {}
+do_execsql_test 1.3 {
+ INSERT INTO t1 VALUES(randomblob(20));
+}
+
+# This test no longer functions due to the deferred computation of
+# MemPage.nFree.
+#
+if 0 {
+do_catchsql_test 1.4 {
+ INSERT INTO t1 VALUES(randomblob(90));
+} {1 {database disk image is malformed}}
+}
+
+#-------------------------------------------------------------------------
+reset_db
+do_execsql_test 2.1 {
+ PRAGMA page_size=1024;
+ PRAGMA auto_vacuum=0;
+ CREATE TABLE t1(x);
+
+ INSERT INTO t1 VALUES(randomblob(20));
+ INSERT INTO t1 VALUES(randomblob(20)); -- free this one
+ INSERT INTO t1 VALUES(randomblob(20));
+ INSERT INTO t1 VALUES(randomblob(20)); -- and this one
+ INSERT INTO t1 VALUES(randomblob(20)); -- corrupt this one.
+
+ DELETE FROM t1 WHERE rowid IN(2, 4);
+ PRAGMA page_count
+} {2}
+
+do_test 2.2 {
+ db close
+ hexio_write test.db [expr 1024 + 0x388] 53
+ hexio_write test.db [expr 1024 + 0x38A] 03812C
+
+ sqlite3 db test.db
+ set fd [db incrblob t1 x 5]
+ fconfigure $fd -translation binary -encoding binary
+
+ seek $fd 22
+ puts -nonewline $fd "\x5d"
+ close $fd
+} {}
+
+do_catchsql_test 2.3 {
+ INSERT INTO t1 VALUES(randomblob(900));
+} {1 {database disk image is malformed}}
+
+#-------------------------------------------------------------------------
+
+ifcapable vtab {
+if {[permutation]!="inmemory_journal"} {
+
+ proc hex2blob {hex} {
+ # Split on newlines:
+ set bytes [list]
+ foreach l [split $hex "\n"] {
+ if {[string is space $l]} continue
+ set L [list]
+ foreach b [split $l] {
+ if {[string is xdigit $b] && [string length $b]==2} {
+ lappend L [expr "0x$b"]
+ }
+ }
+ if {[llength $L]!=16} {
+ error "Badly formed hex (1)"
+ }
+ set bytes [concat $bytes $L]
+ }
+
+ binary format c* $bytes
+ }
+
+ reset_db
+ db func hex2blob hex2blob
+
+ do_execsql_test 3.1 {
+ PRAGMA page_size=1024;
+ CREATE TABLE t1(a, b, c);
+ CREATE TABLE t2(a, b, c);
+ CREATE TABLE t3(a, b, c);
+ CREATE TABLE t4(a, b, c);
+ CREATE TABLE t5(a, b, c);
+ }
+ sqlite3_db_config db DEFENSIVE 0
+ do_execsql_test 3.2 {
+ UPDATE sqlite_dbpage SET data = hex2blob('
+ 000: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00 SQLite format 3.
+ 010: 04 00 01 01 20 40 20 20 00 00 3e d9 00 00 00 06 .... @ ..>.....
+ 020: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04 ................
+ 030: 0f 00 00 00 00 00 00 00 00 00 00 01 00 00 83 00 ................
+ 040: 00 00 00 00 00 00 00 00 00 00 00 00 00 38 00 00 .............8..
+ 050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3e d9 ..............>.
+ 060: 00 2d e6 07 0d 00 00 00 01 03 a0 00 03 e0 00 00 .-..............
+ 070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 0a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 0c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 0d0: 00 00 00 00 00 c1 00 00 00 00 00 00 00 00 00 00 ................
+ 0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 0f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 160: 00 83 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 180: 00 00 00 00 00 00 00 00 00 00 07 00 30 00 00 00 ............0...
+ 190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 1a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 1b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 1c0: 02 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 ................
+ 1d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 1e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 1f0: 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 220: 00 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 230: 0c 00 00 00 00 00 00 60 00 00 00 06 00 00 c3 00 .......`........
+ 240: 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 250: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 260: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 270: 00 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 290: 04 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 2a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 2b0: 00 00 00 00 83 00 8c 00 00 00 00 00 00 00 00 00 ................
+ 2c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 2d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 2e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 2f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 310: 00 78 00 00 00 00 00 00 00 00 00 00 00 00 70 00 .x............p.
+ 320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 340: 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 350: 00 00 00 00 00 68 00 00 00 00 00 00 00 00 00 00 .....h..........
+ 360: 00 00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 ................
+ 370: 00 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00 ................
+ 380: 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 ....p...........
+ 390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+ 3a0: 5e 01 07 17 1b 1b 01 81 13 74 61 62 6c 65 73 65 ^........tablese
+ 3b0: 6e 73 6f 32 73 73 65 6e 73 6f 72 73 02 43 52 45 nso2ssensors.CRE
+ 3c0: 41 54 45 20 54 41 42 4c 45 20 73 65 6e 73 6f 72 ATE TABLE sensor
+ 3d0: 73 20 0a 20 20 24 20 20 20 20 20 20 20 20 20 20 s . $
+ 3e0: b8 6e 61 6d 65 21 74 65 78 74 2c 20 79 61 6c 20 .name!text, yal
+ 3f0: 72 65 61 6c 2c 20 74 69 6d 65 20 74 65 78 74 29 real, time text)
+ ') WHERE pgno=1
+ }
+
+ db close
+ sqlite3 db test.db
+
+ do_catchsql_test 3.3 {
+ PRAGMA integrity_check;
+ } {1 {database disk image is malformed}}
+
+} ;# [permutation]!="inmemory_journal"
+} ;# ifcapable vtab
+
+
+
+finish_test