gitlab.com/CoiaPrant/sqlite3@v1.19.1/testdata/tcl/corruptK.test (about)

     1  # 2017-03-03
     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 corruptK
    16  
    17  if {[permutation]=="mmap"} {
    18    finish_test
    19    return
    20  }
    21  
    22  # This module uses hard-coded offsets which do not work if the reserved_bytes
    23  # value is nonzero.
    24  if {[nonzero_reserved_bytes]} {finish_test; return;}
    25  database_may_be_corrupt
    26  
    27  # Initialize the database.
    28  # 
    29  do_execsql_test 1.1 {
    30    PRAGMA page_size=1024;
    31    PRAGMA auto_vacuum=0;
    32    CREATE TABLE t1(x);
    33  
    34    INSERT INTO t1 VALUES(randomblob(20));
    35    INSERT INTO t1 VALUES(randomblob(100));   -- make this into a free slot
    36    INSERT INTO t1 VALUES(randomblob(27));    -- this one will be corrupt
    37    INSERT INTO t1 VALUES(randomblob(800));
    38  
    39    DELETE FROM t1 WHERE rowid=2;  -- free the 100 byte slot
    40    PRAGMA page_count
    41  } {2}
    42  
    43  
    44  # Corrupt the database so that the blob stored immediately before 
    45  # the free slot (rowid==3) has an overlarge length field. So that
    46  # we can use sqlite3_blob_write() to manipulate the size field of
    47  # the free slot.
    48  #
    49  # Then use sqlite3_blob_write() to set the size of said free slot
    50  # to 24 bytes (instead of the actual 100).
    51  #
    52  # Then use the new 24 byte slot. Leaving the in-memory version of
    53  # the page with zero free slots and a large nFree value. Then try
    54  # to allocate another slot to get to defragmentPage().
    55  #
    56  do_test 1.2 {
    57    db close
    58    hexio_write test.db [expr 1024 + 0x360] 21
    59    hexio_write test.db [expr 1024 + 0x363] [format %x [expr 31*2 + 12]]
    60    sqlite3 db test.db
    61  
    62    set fd [db incrblob t1 x 3]
    63    fconfigure $fd -translation binary -encoding binary
    64    seek $fd 30
    65    puts -nonewline $fd "\x18"
    66    close $fd
    67  } {}
    68  do_execsql_test 1.3 {
    69    INSERT INTO t1 VALUES(randomblob(20));
    70  }
    71  
    72  # This test no longer functions due to the deferred computation of
    73  # MemPage.nFree.
    74  #
    75  if 0 {
    76  do_catchsql_test 1.4 {
    77    INSERT INTO t1 VALUES(randomblob(90));
    78  } {1 {database disk image is malformed}}
    79  }
    80  
    81  #-------------------------------------------------------------------------
    82  reset_db
    83  do_execsql_test 2.1 {
    84    PRAGMA page_size=1024;
    85    PRAGMA auto_vacuum=0;
    86    CREATE TABLE t1(x);
    87  
    88    INSERT INTO t1 VALUES(randomblob(20));
    89    INSERT INTO t1 VALUES(randomblob(20));    -- free this one
    90    INSERT INTO t1 VALUES(randomblob(20));
    91    INSERT INTO t1 VALUES(randomblob(20));    -- and this one
    92    INSERT INTO t1 VALUES(randomblob(20));    -- corrupt this one.
    93  
    94    DELETE FROM t1 WHERE rowid IN(2, 4);
    95    PRAGMA page_count
    96  } {2}
    97  
    98  do_test 2.2 {
    99    db close
   100    hexio_write test.db [expr 1024 + 0x388] 53
   101    hexio_write test.db [expr 1024 + 0x38A] 03812C
   102  
   103    sqlite3 db test.db
   104    set fd [db incrblob t1 x 5]
   105    fconfigure $fd -translation binary -encoding binary
   106  
   107    seek $fd 22
   108    puts -nonewline $fd "\x5d"
   109    close $fd
   110  } {}
   111  
   112  do_catchsql_test 2.3 {
   113    INSERT INTO t1 VALUES(randomblob(900));
   114  } {1 {database disk image is malformed}}
   115  
   116  #-------------------------------------------------------------------------
   117  
   118  ifcapable vtab {
   119  if {[permutation]!="inmemory_journal"} {
   120  
   121    proc hex2blob {hex} {
   122      # Split on newlines:
   123      set bytes [list]
   124      foreach l [split $hex "\n"] {
   125        if {[string is space $l]} continue
   126        set L [list]
   127        foreach b [split $l] {
   128          if {[string is xdigit $b] && [string length $b]==2} { 
   129            lappend L [expr "0x$b"]
   130          }
   131        }
   132        if {[llength $L]!=16} {
   133          error "Badly formed hex (1)"
   134        }
   135        set bytes [concat $bytes $L]
   136      }
   137    
   138      binary format c* $bytes
   139    }
   140    
   141    reset_db
   142    db func hex2blob hex2blob
   143    
   144    do_execsql_test 3.1 {
   145      PRAGMA page_size=1024;
   146      CREATE TABLE t1(a, b, c);
   147      CREATE TABLE t2(a, b, c);
   148      CREATE TABLE t3(a, b, c);
   149      CREATE TABLE t4(a, b, c);
   150      CREATE TABLE t5(a, b, c);
   151    }
   152    sqlite3_db_config db DEFENSIVE 0
   153    do_execsql_test 3.2 {
   154      UPDATE sqlite_dbpage SET data = hex2blob('
   155     000: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00 SQLite format 3.
   156     010: 04 00 01 01 20 40 20 20 00 00 3e d9 00 00 00 06 .... @  ..>.....
   157     020: 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 04 ................
   158     030: 0f 00 00 00 00 00 00 00 00 00 00 01 00 00 83 00 ................
   159     040: 00 00 00 00 00 00 00 00 00 00 00 00 00 38 00 00 .............8..
   160     050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3e d9 ..............>.
   161     060: 00 2d e6 07 0d 00 00 00 01 03 a0 00 03 e0 00 00 .-..............
   162     070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   163     080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   164     090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   165     0a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   166     0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   167     0c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   168     0d0: 00 00 00 00 00 c1 00 00 00 00 00 00 00 00 00 00 ................
   169     0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   170     0f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   171     100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   172     110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   173     120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   174     130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   175     140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   176     150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   177     160: 00 83 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   178     170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   179     180: 00 00 00 00 00 00 00 00 00 00 07 00 30 00 00 00 ............0...
   180     190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   181     1a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   182     1b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   183     1c0: 02 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 ................
   184     1d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   185     1e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   186     1f0: 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   187     200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   188     210: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   189     220: 00 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   190     230: 0c 00 00 00 00 00 00 60 00 00 00 06 00 00 c3 00 .......`........
   191     240: 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   192     250: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   193     260: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   194     270: 00 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 ................
   195     280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   196     290: 04 00 0e 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   197     2a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   198     2b0: 00 00 00 00 83 00 8c 00 00 00 00 00 00 00 00 00 ................
   199     2c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   200     2d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   201     2e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   202     2f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   203     300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   204     310: 00 78 00 00 00 00 00 00 00 00 00 00 00 00 70 00 .x............p.
   205     320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   206     330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   207     340: 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 ................
   208     350: 00 00 00 00 00 68 00 00 00 00 00 00 00 00 00 00 .....h..........
   209     360: 00 00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 ................
   210     370: 00 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00 ................
   211     380: 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 ....p...........
   212     390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
   213     3a0: 5e 01 07 17 1b 1b 01 81 13 74 61 62 6c 65 73 65 ^........tablese
   214     3b0: 6e 73 6f 32 73 73 65 6e 73 6f 72 73 02 43 52 45 nso2ssensors.CRE
   215     3c0: 41 54 45 20 54 41 42 4c 45 20 73 65 6e 73 6f 72 ATE TABLE sensor
   216     3d0: 73 20 0a 20 20 24 20 20 20 20 20 20 20 20 20 20 s .  $          
   217     3e0: b8 6e 61 6d 65 21 74 65 78 74 2c 20 79 61 6c 20 .name!text, yal 
   218     3f0: 72 65 61 6c 2c 20 74 69 6d 65 20 74 65 78 74 29 real, time text)
   219      ') WHERE pgno=1
   220    }
   221    
   222    db close
   223    sqlite3 db test.db
   224    
   225    do_catchsql_test 3.3 {
   226      PRAGMA integrity_check;
   227    } {1 {database disk image is malformed}}
   228  
   229  } ;# [permutation]!="inmemory_journal"
   230  } ;# ifcapable vtab
   231  
   232  
   233  
   234  finish_test