ext/exif/exif.c:

In exif_iif_add_value() , since the increment of value pointer is not
appropriately performed, when length is larger than 1, the elements
after 2nd are overwritten by 1st element.

ex) GPS.GPSLatitude
if the real value of GPSLatitude is "36/1 43859/1000 0/1",

  $exif = exif_read_data('filename',0,true);
  $lad = $exif["GPS"]["GPSLatitude"][0];
  $lam = $exif["GPS"]["GPSLatitude"][1];
  $las = $exif["GPS"]["GPSLatitude"][2];

"$lad,$lam,$las" has to be "36/1 43859/1000 0/1". 
But, it is set to "36/1 36/1 36/1" in the present.


adhoc patch

--- ext/exif/exif.c.orig        Mon Dec  9 22:01:12 2002
+++ ext/exif/exif.c     Mon Dec  9 22:03:10 2002
@@ -1520,6 +1520,7 @@
 static void exif_iif_add_value(image_info_type *image_info, int section_index, char *name, int tag, int format, size_t len
gth, void* value, int motorola_intel TSRMLS_DC)
 {
        size_t index;
+       void   *vptr;
        image_info_value *info_value;
        image_info_data  *info_data;
        image_info_data  *list;
@@ -1604,35 +1605,36 @@
                        } else {
                                info_value = &info_data->value;
                        }
-                       for (index=0; index<length; index++) {
+                       /**************/
+                       for (index=0,vptr=value; index<length; index++, vptr+=php_tiff_bytes_per_format[format]) {
                                if (length>1) {
                                        info_value = &info_data->value.list[index];
                                }
                                switch (format) {
                                        case TAG_FMT_USHORT:
-                                               info_value->u = php_ifd_get16u(value, motorola_intel);
+                                               info_value->u = php_ifd_get16u(vptr, motorola_intel);
                                                break;
 
                                        case TAG_FMT_ULONG:
-                                               info_value->u = php_ifd_get32u(value, motorola_intel);
+                                               info_value->u = php_ifd_get32u(vptr, motorola_intel);
                                                break;
 
                                        case TAG_FMT_URATIONAL:
-                                               info_value->ur.num = php_ifd_get32u(value, motorola_intel);
-                                               info_value->ur.den = php_ifd_get32u(4+(char *)value, motorola_intel);
+                                               info_value->ur.num = php_ifd_get32u(vptr, motorola_intel);
+                                               info_value->ur.den = php_ifd_get32u(4+(char *)vptr, motorola_intel);
                                                break;
 
                                        case TAG_FMT_SSHORT:
-                                               info_value->i = php_ifd_get16s(value, motorola_intel);
+                                               info_value->i = php_ifd_get16s(vptr, motorola_intel);
                                                break;
 
                                        case TAG_FMT_SLONG:
-                                               info_value->i = php_ifd_get32s(value, motorola_intel);
+                                               info_value->i = php_ifd_get32s(vptr, motorola_intel);
                                                break;
 
                                        case TAG_FMT_SRATIONAL:
-                                               info_value->sr.num = php_ifd_get32u(value, motorola_intel);
-                                               info_value->sr.den = php_ifd_get32u(4+(char *)value, motorola_intel);
+                                               info_value->sr.num = php_ifd_get32u(vptr, motorola_intel);
+                                               info_value->sr.den = php_ifd_get32u(4+(char *)vptr, motorola_intel);
                                                break;
 
                                        case TAG_FMT_SINGLE: