Merge tsmith@bk-internal.mysql.com:/home/bk/mysql-5.0

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50


client/mysqldump.c:
  Auto merged
include/my_sys.h:
  Auto merged
libmysql/CMakeLists.txt:
  Auto merged
libmysql/Makefile.shared:
  Auto merged
myisam/ft_boolean_search.c:
  Auto merged
myisam/sort.c:
  Auto merged
mysql-test/t/cast.test:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/opt_range.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/set_var.h:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
mysql-test/mysql-test-run.pl:
  Manual merge
mysql-test/r/ctype_ucs.result:
  Manual merge
mysql-test/r/func_misc.result:
  Manual merge
mysql-test/t/binlog_killed.test:
  Manual merge
mysql-test/t/ctype_ucs.test:
  Manual merge
mysql-test/t/func_misc.test:
  Manual merge
sql/item_strfunc.h:
  Manual merge
strings/ctype-simple.c:
  Manual merge

2 files changed, 25 insertions, 5 deletions

diff --git a/strings/ctype-euc_kr.c b/strings/ctype-euc_kr.c
index 0a67d4c0a54..511a81f0cd4 100644
--- a/strings/ctype-euc_kr.c
+++ b/strings/ctype-euc_kr.c
@@ -179,20 +179,39 @@ static uchar NEAR sort_order_euc_kr[]=
 
 /* Support for Korean(EUC_KR) characters, by powerm90@tinc.co.kr and mrpark@tinc.co.kr */
 
-#define iseuc_kr(c)     ((0xa1<=(uchar)(c) && (uchar)(c)<=0xfe))
+/*
+ Unicode mapping is done according to:
+ ftp://ftp.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/KSC/KSC5601.TXT
+ 
+ Valid multi-byte characters:
+ 
+   [A1..FE][41..5A,61..7A,81..FE]
+ 
+ Note, 0x5C is not a valid MB tail,
+ so escape_with_backslash_is_dangerous is not set.
+*/
+
+#define iseuc_kr_head(c)     ((0xa1<=(uchar)(c) && (uchar)(c)<=0xfe))
+
+#define iseuc_kr_tail1(c)    ((uchar) (c) >= 0x41 && (uchar) (c) <= 0x5A)
+#define iseuc_kr_tail2(c)    ((uchar) (c) >= 0x61 && (uchar) (c) <= 0x7A)
+#define iseuc_kr_tail3(c)    ((uchar) (c) >= 0x81 && (uchar) (c) <= 0xFE)
 
+#define iseuc_kr_tail(c)     (iseuc_kr_tail1(c) || \
+                              iseuc_kr_tail2(c) || \
+                              iseuc_kr_tail3(c))
 
 static int ismbchar_euc_kr(CHARSET_INFO *cs __attribute__((unused)),
 		    const char* p, const char *e)
 {
   return ((*(uchar*)(p)<0x80)? 0:\
-          iseuc_kr(*(p)) && (e)-(p)>1 && iseuc_kr(*((p)+1))? 2:\
+          iseuc_kr_head(*(p)) && (e)-(p)>1 && iseuc_kr_tail(*((p)+1))? 2:\
           0);
 }
 
 static int mbcharlen_euc_kr(CHARSET_INFO *cs __attribute__((unused)),uint c)
 {
-  return (iseuc_kr(c) ? 2 : 1);
+  return (iseuc_kr_head(c) ? 2 : 1);
 }
 
 
@@ -8653,7 +8672,7 @@ my_well_formed_len_euckr(CHARSET_INFO *cs __attribute__((unused)),
       /* Single byte ascii character */
       b++;
     }
-    else  if (b < emb && iseuc_kr(*b) && iseuc_kr(b[1]))
+    else  if (b < emb && iseuc_kr_head(*b) && iseuc_kr_tail(b[1]))
     {
       /* Double byte character */
       b+= 2;
diff --git a/strings/decimal.c b/strings/decimal.c
index f1f02f3a071..cbea0e340c6 100644
--- a/strings/decimal.c
+++ b/strings/decimal.c
@@ -2323,11 +2323,12 @@ static int do_div_mod(decimal_t *from1, decimal_t *from2,
     }
     if (unlikely(intg0+frac0 > to->len))
     {
-      stop1-=to->len-frac0-intg0;
+      stop1-=frac0+intg0-to->len;
       frac0=to->len-intg0;
       to->frac=frac0*DIG_PER_DEC1;
         error=E_DEC_TRUNCATED;
     }
+    DBUG_ASSERT(buf0 + (stop1 - start1) <= to->buf + to->len);
     while (start1 < stop1)
         *buf0++=*start1++;
   }