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Bug#19741 segfault with cp1250 charset + like + primary key + 64bit os

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LIKE craashed with a pattern having letters in the range 128..255
(e.g. A WITH ACUTE or C WITH CARON) because of wrong cast from
signed char to unsigned int.


mysql-test/r/ctype_cp1250_ch.result:
  Adding test case
mysql-test/t/ctype_cp1250_ch.test:
  Adding test case
strings/ctype-win1250ch.c:
  Fixing wrong cast from "signed char" -> "uint" to
  "signed char" -> "unsigned char" -> uint, to properly
  handle bytes 128..255.
This commit is contained in:
unknown 2006-07-25 17:27:53 +05:00
commit 2347325117
3 changed files with 20 additions and 2 deletions
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4
strings/ctype-win1250ch.c
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@ -634,11 +634,11 @@ my_like_range_win1250ch(CHARSET_INFO *cs __attribute__((unused)),
ptr++; /* Skip escape */
else if (*ptr == w_one || *ptr == w_many) /* '_' or '%' in SQL */
break;
*min_str = like_range_prefix_min_win1250ch[(uint)(*ptr)];
*min_str = like_range_prefix_min_win1250ch[(uint) (uchar) (*ptr)];
if (*min_str != min_sort_char)
only_min_found= 0;
min_str++;
*max_str++ = like_range_prefix_max_win1250ch[(uint)(*ptr)];
*max_str++ = like_range_prefix_max_win1250ch[(uint) (uchar) (*ptr)];
}
*min_length = (uint) (min_str - min_org);