Bug #3290 [Ver]: Can't convert sjis&ujis half-width katakana correctly

UJIS part fix

mysql-test/r/ctype_ujis.result

@@ -64,3 +64,31 @@ select 'A' like 'a';
 select 'A' like 'a' collate ujis_bin;
 'A' like 'a' collate ujis_bin
 0
+set @ujis1= _ujis     0x8EA18EA28EA38EA48EA58EA68EA78EA88EA98EAA8EAB8EAC8EAD8EAE8EAF;
+set @ujis2= _ujis 0x8EB08EB18EB28EB38EB48EB58EB68EB78EB88EB98EBA8EBB8EBC8EBD8EBE8EBF;
+set @ujis3= _ujis 0x8EC08EC18EC28EC38EC48EC58EC68EC78EC88EC98ECA8ECB8ECC8ECD8ECE8ECF;
+set @ujis4= _ujis 0x8ED08ED18ED28ED38ED48ED58ED68ED78ED88ED98EDA8EDB8EDC8EDD8EDE8EDF;
+select hex(@utf81:= CONVERT(@ujis1 USING utf8));
+hex(@utf81:= CONVERT(@ujis1 USING utf8))
+EFBDA1EFBDA2EFBDA3EFBDA4EFBDA5EFBDA6EFBDA7EFBDA8EFBDA9EFBDAAEFBDABEFBDACEFBDADEFBDAEEFBDAF
+select hex(@utf82:= CONVERT(@ujis2 USING utf8));
+hex(@utf82:= CONVERT(@ujis2 USING utf8))
+EFBDB0EFBDB1EFBDB2EFBDB3EFBDB4EFBDB5EFBDB6EFBDB7EFBDB8EFBDB9EFBDBAEFBDBBEFBDBCEFBDBDEFBDBEEFBDBF
+select hex(@utf83:= CONVERT(@ujis3 USING utf8));
+hex(@utf83:= CONVERT(@ujis3 USING utf8))
+EFBE80EFBE81EFBE82EFBE83EFBE84EFBE85EFBE86EFBE87EFBE88EFBE89EFBE8AEFBE8BEFBE8CEFBE8DEFBE8EEFBE8F
+select hex(@utf84:= CONVERT(@ujis4 USING utf8));
+hex(@utf84:= CONVERT(@ujis4 USING utf8))
+EFBE90EFBE91EFBE92EFBE93EFBE94EFBE95EFBE96EFBE97EFBE98EFBE99EFBE9AEFBE9BEFBE9CEFBE9DEFBE9EEFBE9F
+select @ujis1 = CONVERT(@utf81 USING ujis);
+@ujis1 = CONVERT(@utf81 USING ujis)
+1
+select @ujis2 = CONVERT(@utf82 USING ujis);
+@ujis2 = CONVERT(@utf82 USING ujis)
+1
+select @ujis3 = CONVERT(@utf83 USING ujis);
+@ujis3 = CONVERT(@utf83 USING ujis)
+1
+select @ujis4 = CONVERT(@utf84 USING ujis);
+@ujis4 = CONVERT(@utf84 USING ujis)
+1

mysql-test/t/ctype_ujis.test

@@ -41,3 +41,23 @@ select _ujis 0xa1a2a1a3 like concat(_ujis'%',_ujis 0xa2a1, _ujis'%') collate uji
 select 'a' like 'a';
 select 'A' like 'a';
 select 'A' like 'a' collate ujis_bin;
+
+#
+# Bug 3290: Hald-width Katakana conversion problem.
+# Check ujis-utf8-ujis round trip.
+#
+set @ujis1= _ujis     0x8EA18EA28EA38EA48EA58EA68EA78EA88EA98EAA8EAB8EAC8EAD8EAE8EAF;
+set @ujis2= _ujis 0x8EB08EB18EB28EB38EB48EB58EB68EB78EB88EB98EBA8EBB8EBC8EBD8EBE8EBF;
+set @ujis3= _ujis 0x8EC08EC18EC28EC38EC48EC58EC68EC78EC88EC98ECA8ECB8ECC8ECD8ECE8ECF;
+set @ujis4= _ujis 0x8ED08ED18ED28ED38ED48ED58ED68ED78ED88ED98EDA8EDB8EDC8EDD8EDE8EDF;
+
+select hex(@utf81:= CONVERT(@ujis1 USING utf8));
+select hex(@utf82:= CONVERT(@ujis2 USING utf8));
+select hex(@utf83:= CONVERT(@ujis3 USING utf8));
+select hex(@utf84:= CONVERT(@ujis4 USING utf8));
+
+select @ujis1 = CONVERT(@utf81 USING ujis);
+select @ujis2 = CONVERT(@utf82 USING ujis);
+select @ujis3 = CONVERT(@utf83 USING ujis);
+select @ujis4 = CONVERT(@utf84 USING ujis);
+

strings/ctype-ujis.c

@@ -8342,18 +8342,14 @@ my_mb_wc_euc_jp(CHARSET_INFO *cs,my_wc_t *pwc, const uchar *s, const uchar *e)
 static int
 my_wc_mb_euc_jp(CHARSET_INFO *c,my_wc_t wc, unsigned char *s, unsigned char *e)
 {
-  unsigned char buf[2];
   unsigned char c1;
-  int ret,jp;
+  int jp;
   
   if (s >= e)
     return MY_CS_TOOSMALL;
   
   if ((int) wc < 0x80)
   { 
-    if (s>e)
-      return MY_CS_TOOSMALL;
-      
     *s= (uchar) wc;
     return 1;
   }
@@ -8369,21 +8365,20 @@ my_wc_mb_euc_jp(CHARSET_INFO *c,my_wc_t wc, unsigned char *s, unsigned char *e)
     return 2;
   }
   
-  ret=my_wc_mb_jisx0201(c,wc,buf,buf+2);
-  if (ret==1)
+  /* Half width Katakana */
+  if (my_wc_mb_jisx0201(c,wc,s,e) == 1)
   {
-    if (s+1>e)
+    if (s+2>e)
       return MY_CS_TOOSMALL;
-      
-    s[0]=0x8E;
-    s[1]=buf[0];
-    return 1;
+    s[1]= s[0];
+    s[0]= 0x8E;
+    return 2;
   }
   
   
   if ((jp=my_uni_jisx0212_onechar(wc)))
   {
-    if (s+2>e)
+    if (s+3>e)
       return MY_CS_TOOSMALL;
       
     jp+=0x8080;