Fixed bug #78442 ('Illegal component' on exif_read_data since PHP7)

ext/exif/exif.c

@@ -1002,28 +1002,24 @@ static tag_info_array tag_table_VND_PANASONIC = {
   { 0x0001, "Quality"},
   { 0x0002, "FirmwareVersion"},
   { 0x0003, "WhiteBalance"},
-  { 0x0004, "0x0004"},
   { 0x0007, "FocusMode"},
   { 0x000f, "AFMode"},
   { 0x001a, "ImageStabilization"},
   { 0x001c, "Macro"},
   { 0x001f, "ShootingMode"},
   { 0x0020, "Audio"},
   { 0x0021, "DataDump"},
-  { 0x0022, "0x0022"},
   { 0x0023, "WhiteBalanceBias"},
   { 0x0024, "FlashBias"},
   { 0x0025, "InternalSerialNumber"},
   { 0x0026, "ExifVersion"},
-  { 0x0027, "0x0027"},
   { 0x0028, "ColorEffect"},
   { 0x0029, "TimeSincePowerOn"},
   { 0x002a, "BurstMode"},
   { 0x002b, "SequenceNumber"},
   { 0x002c, "Contrast"},
   { 0x002d, "NoiseReduction"},
   { 0x002e, "SelfTimer"},
-  { 0x002f, "0x002f"},
   { 0x0030, "Rotation"},
   { 0x0031, "AFAssistLamp"},
   { 0x0032, "ColorMode"},
@@ -1090,7 +1086,6 @@ static tag_info_array tag_table_VND_PANASONIC = {
   { 0x00a3, "ClearRetouchValue"},
   { 0x00ab, "TouchAE"},
   { 0x0e00, "PrintIM"},
-  { 0x4449, "0x4449"},
   { 0x8000, "MakerNoteVersion"},
   { 0x8001, "SceneMode"},
   { 0x8004, "WBRedLevel"},
@@ -1125,22 +1120,20 @@ static tag_info_array tag_table_VND_SONY = {
   { 0x0112, "WhiteBalanceFineTune"},
   { 0x0114, "CameraSettings"},
   { 0x0115, "WhiteBalance"},
-  { 0x0116, "0x0116"},
+  { 0x0116, "ExtraInfo"},
   { 0x0e00, "PrintIM"},
   { 0x1000, "MultiBurstMode"},
   { 0x1001, "MultiBurstImageWidth"},
   { 0x1002, "MultiBurstImageHeight"},
   { 0x1003, "Panorama"},
-  { 0x2000, "0x2000"},
   { 0x2001, "PreviewImage"},
-  { 0x2002, "0x2002"},
-  { 0x2003, "0x2003"},
+  { 0x2002, "Rating"},
   { 0x2004, "Contrast"},
   { 0x2005, "Saturation"},
-  { 0x2006, "0x2006"},
-  { 0x2007, "0x2007"},
-  { 0x2008, "0x2008"},
-  { 0x2009, "0x2009"},
+  { 0x2006, "Sharpness"},
+  { 0x2007, "Brightness"},
+  { 0x2008, "LongExposureNoiseReduction"},
+  { 0x2009, "HighISONoiseReduction"},
   { 0x200a, "AutoHDR"},
   { 0x3000, "ShotInfo"},
   { 0xb000, "FileFormat"},
@@ -1167,8 +1160,9 @@ static tag_info_array tag_table_VND_SONY = {
   { 0xb049, "ReleaseMode"},
   { 0xb04a, "SequenceNumber"},
   { 0xb04b, "AntiBlur"},
-  { 0xb04e, "LongExposureNoiseReduction"},
+  { 0xb04e, "FocusMode"},
   { 0xb04f, "DynamicRangeOptimizer"},
+  { 0xb050, "HighISONoiseReduction2"},
   { 0xb052, "IntelligentAuto"},
   { 0xb054, "WhiteBalance2"},
   TAG_TABLE_END
@@ -1273,7 +1267,6 @@ static tag_info_array tag_table_VND_MINOLTA = {
   { 0x0100, "SceneMode"},
   { 0x0101, "ColorMode"},
   { 0x0102, "Quality"},
-  { 0x0103, "0x0103"},
   { 0x0104, "FlashExposureComp"},
   { 0x0105, "Teleconverter"},
   { 0x0107, "ImageStabilization"},
@@ -1369,6 +1362,7 @@ static const maker_note_type maker_note_array[] = {
   { tag_table_VND_PANASONIC, "Panasonic",               NULL, "Panasonic\x00\x00\x00",			 12, 12, MN_ORDER_NORMAL,   MN_OFFSET_NORMAL},
   { tag_table_VND_DJI,       "DJI",                     NULL, NULL,								 0, 0,   MN_ORDER_NORMAL,   MN_OFFSET_NORMAL},
   { tag_table_VND_SONY,      "SONY",                    NULL, "SONY DSC \x00\x00\x00",	         12, 12, MN_ORDER_NORMAL,   MN_OFFSET_NORMAL},
+  { tag_table_VND_SONY,      "SONY",                    NULL,								     0, 0,   MN_ORDER_NORMAL,   MN_OFFSET_NORMAL},
   { tag_table_VND_PENTAX,    "PENTAX",                  NULL, "AOC\x00",						 6,  6,  MN_ORDER_NORMAL,   MN_OFFSET_NORMAL},
   { tag_table_VND_MINOLTA,   "Minolta, KONICA MINOLTA", NULL, NULL,								 0,  0,  MN_ORDER_NORMAL,   MN_OFFSET_NORMAL},
   { tag_table_VND_SIGMA,     "SIGMA, FOVEON",           NULL, "SIGMA\x00\x00\x00",				 10, 10, MN_ORDER_NORMAL,   MN_OFFSET_NORMAL},
@@ -3295,7 +3289,7 @@ static int exif_process_IFD_TAG(image_info_type *ImageInfo, char *dir_entry, cha
 		/*return TRUE;*/
 	}
 
-	if (components <= 0) {
+	if (components < 0) {
 		exif_error_docref("exif_read_data#error_ifd" EXIFERR_CC, ImageInfo, E_WARNING, "Process tag(x%04X=%s): Illegal components(%d)", tag, exif_get_tagname(tag, tagname, -12, tag_table), components);
 		return FALSE;
 	}

ext/exif/tests/bug68547.phpt

@@ -4,9 +4,48 @@ Bug #68547 (Exif Header component value check error)
 <?php if (!extension_loaded('exif')) print 'skip exif extension not available';?>
 --FILE--
 <?php
-exif_read_data(__DIR__ . DIRECTORY_SEPARATOR . 'bug68547.jpg');
+var_dump(exif_read_data(__DIR__ . DIRECTORY_SEPARATOR . 'bug68547.jpg'));
 ?>
 ===DONE===
 --EXPECTF--
-Warning: exif_read_data(bug68547.jpg): Process tag(x9C9E=Keywords   ): Illegal components(%d) in %sbug68547.php on line %d
+array(12) {
+  ["FileName"]=>
+  string(12) "bug68547.jpg"
+  ["FileDateTime"]=>
+  int(%d)
+  ["FileSize"]=>
+  int(713)
+  ["FileType"]=>
+  int(2)
+  ["MimeType"]=>
+  string(10) "image/jpeg"
+  ["SectionsFound"]=>
+  string(20) "ANY_TAG, IFD0, WINXP"
+  ["COMPUTED"]=>
+  array(5) {
+    ["html"]=>
+    string(20) "width="1" height="1""
+    ["Height"]=>
+    int(1)
+    ["Width"]=>
+    int(1)
+    ["IsColor"]=>
+    int(1)
+    ["ByteOrderMotorola"]=>
+    int(0)
+  }
+  ["Subject"]=>
+  string(10) "Subjec??.."
+  ["Keywords"]=>
+  string(0) ""
+  ["Author"]=>
+  string(9) "Rui Carmo"
+  ["Comments"]=>
+  string(29) "Comments
+Line2
+Line3
+Line4"
+  ["Title"]=>
+  string(8) "Title..."
+}
 ===DONE===

ext/exif/tests/bug68799.phpt

@@ -39,15 +39,14 @@ print_r(exif_read_data(__DIR__.'/bug68799.jpg'));
 
 ?>
 --EXPECTF--
-Warning: exif_read_data(bug68799.jpg): Process tag(x9C9D=Author     ): Illegal components(%d) in %s on line %d
 Array
 (
     [FileName] => bug68799.jpg
     [FileDateTime] => %d
     [FileSize] => 735
     [FileType] => 2
     [MimeType] => image/jpeg
-    [SectionsFound] => ANY_TAG, IFD0
+    [SectionsFound] => ANY_TAG, IFD0, WINXP
     [COMPUTED] => Array
         (
             [html] => width="1" height="1"
@@ -60,4 +59,5 @@ Array
     [XResolution] => 96/1
     [YResolution] => 96/1
     [ResolutionUnit] => 2
+    [Author] => 
 )

ext/exif/tests/bug72094.phpt

@@ -47,7 +47,7 @@ Warning: exif_read_data(bug72094_3.jpg): Process tag(x3030=UndefinedTa): Illegal
 
 Warning: exif_read_data(bug72094_3.jpg): Process tag(x3030=UndefinedTa): Illegal format code 0x3030, suppose BYTE in %s%ebug72094.php on line %d
 
-Warning: exif_read_data(bug72094_3.jpg): Process tag(x3030=UndefinedTa): Illegal components(%d) in %s%ebug72094.php on line %d
+Warning: exif_read_data(bug72094_3.jpg): Illegal IFD size in %s%ebug72094.php on line %d
 
 Warning: exif_read_data(bug72094_3.jpg): File structure corrupted in %s%ebug72094.php on line %d
 

ext/exif/tests/bug73737.phpt

@@ -8,7 +8,5 @@ Bug #73737 (Crash when parsing a tag format)
 	var_dump($exif);
 ?>
 --EXPECTF--
-Warning: exif_thumbnail(bug73737.tiff): Process tag(x0100=ImageWidth ): Illegal components(0) in %s on line %d
-
 Warning: exif_thumbnail(bug73737.tiff): Error in TIFF: filesize(x0030) less than start of IFD dir(x10102) in %s line %d
 bool(false)