SQLite

Check-in [175c15008e]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Add support for the SQLITE_ACCESS_SYMLINK flag in the Win32 VFS.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 175c15008e9f19b8f6762c2fe4a545735128765081980eed01d5e46ca4acb500
User & Date: mistachkin 2019-11-18 23:48:03.608
Context
2019-11-19
00:13
Make the result of sqlite3_normalized_sql() survive its statement being reprepared. (check-in: 4330f0795d user: mistachkin tags: trunk)
2019-11-18
23:48
Add support for the SQLITE_ACCESS_SYMLINK flag in the Win32 VFS. (check-in: 175c15008e user: mistachkin tags: trunk)
22:34
Ensure all file names passed to the VFS layer are double-zero terminated. (check-in: 251230cf43 user: mistachkin tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/main.c.
1386
1387
1388
1389
1390
1391
1392

1393
1394
1395
1396
1397
1398
1399
      case SQLITE_NOTFOUND:           zName = "SQLITE_NOTFOUND";          break;
      case SQLITE_FULL:               zName = "SQLITE_FULL";              break;
      case SQLITE_CANTOPEN:           zName = "SQLITE_CANTOPEN";          break;
      case SQLITE_CANTOPEN_NOTEMPDIR: zName = "SQLITE_CANTOPEN_NOTEMPDIR";break;
      case SQLITE_CANTOPEN_ISDIR:     zName = "SQLITE_CANTOPEN_ISDIR";    break;
      case SQLITE_CANTOPEN_FULLPATH:  zName = "SQLITE_CANTOPEN_FULLPATH"; break;
      case SQLITE_CANTOPEN_CONVPATH:  zName = "SQLITE_CANTOPEN_CONVPATH"; break;

      case SQLITE_PROTOCOL:           zName = "SQLITE_PROTOCOL";          break;
      case SQLITE_EMPTY:              zName = "SQLITE_EMPTY";             break;
      case SQLITE_SCHEMA:             zName = "SQLITE_SCHEMA";            break;
      case SQLITE_TOOBIG:             zName = "SQLITE_TOOBIG";            break;
      case SQLITE_CONSTRAINT:         zName = "SQLITE_CONSTRAINT";        break;
      case SQLITE_CONSTRAINT_UNIQUE:  zName = "SQLITE_CONSTRAINT_UNIQUE"; break;
      case SQLITE_CONSTRAINT_TRIGGER: zName = "SQLITE_CONSTRAINT_TRIGGER";break;







>







1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
      case SQLITE_NOTFOUND:           zName = "SQLITE_NOTFOUND";          break;
      case SQLITE_FULL:               zName = "SQLITE_FULL";              break;
      case SQLITE_CANTOPEN:           zName = "SQLITE_CANTOPEN";          break;
      case SQLITE_CANTOPEN_NOTEMPDIR: zName = "SQLITE_CANTOPEN_NOTEMPDIR";break;
      case SQLITE_CANTOPEN_ISDIR:     zName = "SQLITE_CANTOPEN_ISDIR";    break;
      case SQLITE_CANTOPEN_FULLPATH:  zName = "SQLITE_CANTOPEN_FULLPATH"; break;
      case SQLITE_CANTOPEN_CONVPATH:  zName = "SQLITE_CANTOPEN_CONVPATH"; break;
      case SQLITE_CANTOPEN_SYMLINK:   zName = "SQLITE_CANTOPEN_SYMLINK";  break;
      case SQLITE_PROTOCOL:           zName = "SQLITE_PROTOCOL";          break;
      case SQLITE_EMPTY:              zName = "SQLITE_EMPTY";             break;
      case SQLITE_SCHEMA:             zName = "SQLITE_SCHEMA";            break;
      case SQLITE_TOOBIG:             zName = "SQLITE_TOOBIG";            break;
      case SQLITE_CONSTRAINT:         zName = "SQLITE_CONSTRAINT";        break;
      case SQLITE_CONSTRAINT_UNIQUE:  zName = "SQLITE_CONSTRAINT_UNIQUE"; break;
      case SQLITE_CONSTRAINT_TRIGGER: zName = "SQLITE_CONSTRAINT_TRIGGER";break;
Changes to src/os_win.c.
76
77
78
79
80
81
82








83
84
85
86
87
88
89
#  define NTDDI_WINBLUE                     0x06030000
#endif

#ifndef NTDDI_WINTHRESHOLD
#  define NTDDI_WINTHRESHOLD                0x06040000
#endif









/*
** Check to see if the GetVersionEx[AW] functions are deprecated on the
** target system.  GetVersionEx was first deprecated in Win8.1.
*/
#ifndef SQLITE_WIN32_GETVERSIONEX
#  if defined(NTDDI_VERSION) && NTDDI_VERSION >= NTDDI_WINBLUE
#    define SQLITE_WIN32_GETVERSIONEX   0   /* GetVersionEx() is deprecated */







>
>
>
>
>
>
>
>







76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
#  define NTDDI_WINBLUE                     0x06030000
#endif

#ifndef NTDDI_WINTHRESHOLD
#  define NTDDI_WINTHRESHOLD                0x06040000
#endif

/*
** This constant is needed by the winAccess function; therefore, define
** it when it is missing from the SDK header files.
*/
#ifndef FILE_ATTRIBUTE_REPARSE_POINT
#  define FILE_ATTRIBUTE_REPARSE_POINT      0x00000400
#endif

/*
** Check to see if the GetVersionEx[AW] functions are deprecated on the
** target system.  GetVersionEx was first deprecated in Win8.1.
*/
#ifndef SQLITE_WIN32_GETVERSIONEX
#  if defined(NTDDI_VERSION) && NTDDI_VERSION >= NTDDI_WINBLUE
#    define SQLITE_WIN32_GETVERSIONEX   0   /* GetVersionEx() is deprecated */
5469
5470
5471
5472
5473
5474
5475
5476

5477
5478
5479
5480
5481
5482
5483
      rc = attr!=INVALID_FILE_ATTRIBUTES;
      break;
    case SQLITE_ACCESS_READWRITE:
      rc = attr!=INVALID_FILE_ATTRIBUTES &&
             (attr & FILE_ATTRIBUTE_READONLY)==0;
      break;
    case SQLITE_ACCESS_SYMLINK:
      rc = 0;  /* No symlinks on windows */

      break;
    default:
      assert(!"Invalid flags argument");
  }
  *pResOut = rc;
  OSTRACE(("ACCESS name=%s, pResOut=%p, *pResOut=%d, rc=SQLITE_OK\n",
           zFilename, pResOut, *pResOut));







|
>







5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
      rc = attr!=INVALID_FILE_ATTRIBUTES;
      break;
    case SQLITE_ACCESS_READWRITE:
      rc = attr!=INVALID_FILE_ATTRIBUTES &&
             (attr & FILE_ATTRIBUTE_READONLY)==0;
      break;
    case SQLITE_ACCESS_SYMLINK:
      rc = attr!=INVALID_FILE_ATTRIBUTES &&
             (attr & FILE_ATTRIBUTE_REPARSE_POINT)!=0;
      break;
    default:
      assert(!"Invalid flags argument");
  }
  *pResOut = rc;
  OSTRACE(("ACCESS name=%s, pResOut=%p, *pResOut=%d, rc=SQLITE_OK\n",
           zFilename, pResOut, *pResOut));
Added test/symlink2.test.








































































































































































































































>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
# 2019 November 18
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing that SQLite can follow symbolic links.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix symlink2

# This only runs on Windows.
if {$::tcl_platform(platform)!="windows"} {
  finish_test
  return
}

proc createWin32Symlink { link target } {
  exec -- $::env(ComSpec) /c mklink \
      [file nativename $link] [file nativename $target]
  return ""
}

proc deleteWin32Symlink { link } {
  exec -- $::env(ComSpec) /c del [file nativename $link]
  return ""
}

proc canCreateWin32Symlink {} {
  set link [file join $::testdir lnk[pid].sym]
  if {[file exists $link]} { return 0 }
  set target [info nameofexecutable]
  if {[catch {createWin32Symlink $link $target}] == 0} {
    deleteWin32Symlink $link
    return 1
  }
  return 0
}

# Creating symlinks may require administrator privileges on Windows.
if {![canCreateWin32Symlink]} {
  finish_test
  return
}

# Ensure that test.db has been created.
#
do_execsql_test 1.0 {
  CREATE TABLE t1(x, y);
  INSERT INTO t1 VALUES(1,9999);
}

do_test 2.0 {
  createWin32Symlink link.db test.db
} {}

do_test 2.1 {
  file exists test.db
} {1}

do_test 2.2 {
  file exists link.db
} {1}

do_test 3.1 {
  execsql { SELECT x, y FROM t1; } db
} {1 9999}

do_test 3.2 {
  sqlite3 db2 link.db
  execsql { SELECT x, y FROM t1; } db2
} {1 9999}

do_test 3.3 {
  sqlite3 db3 test.db -nofollow true
  execsql { SELECT x, y FROM t1; } db3
} {1 9999}

do_test 3.4 {
  db3 close
} {}

do_test 3.5 {
  list [catch {
    sqlite3 db4 link.db -nofollow true
    execsql { SELECT x, y FROM t1; } db4
  } res] $res
} {1 {unable to open database file}}

catch {db4 close}

do_test 4.0 {
  db2 close
  deleteWin32Symlink link.db
} {}

do_test 4.1 {
  file exists test.db
} {1}

do_test 4.2 {
  file exists link.db
} {0}

do_test 5.1 {
  execsql { SELECT x, y FROM t1; } db
} {1 9999}

finish_test