Completion of varchar rollback.

Author: bmomjian

src/backend/utils/adt/varchar.c

@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.20 1998/01/08 03:15:06 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.21 1998/01/08 04:19:16 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -144,7 +144,7 @@ varcharin(char *s, int dummy, int typlen)
 
 	result = (char *) palloc(len);
 	VARSIZE(result) = len;
-	memmove(VARDATA(result), s, len - VARHDRSZ);
+	strncpy(VARDATA(result), s, len - VARHDRSZ);
 
 	return (result);
 }
@@ -333,11 +333,11 @@ bpcharcmp(char *arg1, char *arg2)
 static int
 vcTruelen(char *arg)
 {
-	char	   *s = arg + VARHDRSZ;
+	char	   *s = VARDATA(arg);
 	int			i;
 	int			len;
 
-	len = *(int32 *) arg - VARHDRSZ;
+	len = VARSIZE(arg) - VARHDRSZ;
 	for (i = 0; i < len; i++)
 	{
 		if (*s++ == '\0')
@@ -363,8 +363,8 @@ varchareq(char *arg1, char *arg2)
 
 	if (arg1 == NULL || arg2 == NULL)
 		return ((bool) 0);
-	len1 = VARSIZE(arg1);
-	len2 = VARSIZE(arg2);
+	len1 = vcTruelen(arg1);
+	len2 = vcTruelen(arg2);
 
 	if (len1 != len2)
 		return 0;
@@ -380,8 +380,8 @@ varcharne(char *arg1, char *arg2)
 
 	if (arg1 == NULL || arg2 == NULL)
 		return ((bool) 0);
-	len1 = VARSIZE(arg1);
-	len2 = VARSIZE(arg2);
+	len1 = vcTruelen(arg1);
+	len2 = vcTruelen(arg2);
 
 	if (len1 != len2)
 		return 1;
@@ -398,8 +398,8 @@ varcharlt(char *arg1, char *arg2)
 
 	if (arg1 == NULL || arg2 == NULL)
 		return ((bool) 0);
-	len1 = VARSIZE(arg1);
-	len2 = VARSIZE(arg2);
+	len1 = vcTruelen(arg1);
+	len2 = vcTruelen(arg2);
 
 	cmp = strncmp(VARDATA(arg1), VARDATA(arg2), Min(len1, len2));
 	if (cmp == 0)
@@ -417,8 +417,8 @@ varcharle(char *arg1, char *arg2)
 
 	if (arg1 == NULL || arg2 == NULL)
 		return ((bool) 0);
-	len1 = VARSIZE(arg1);
-	len2 = VARSIZE(arg2);
+	len1 = vcTruelen(arg1);
+	len2 = vcTruelen(arg2);
 
 	cmp = strncmp(VARDATA(arg1), VARDATA(arg2), Min(len1, len2));
 	if (0 == cmp)
@@ -436,8 +436,8 @@ varchargt(char *arg1, char *arg2)
 
 	if (arg1 == NULL || arg2 == NULL)
 		return ((bool) 0);
-	len1 = VARSIZE(arg1);
-	len2 = VARSIZE(arg2);
+	len1 = vcTruelen(arg1);
+	len2 = vcTruelen(arg2);
 
 	cmp = strncmp(VARDATA(arg1), VARDATA(arg2), Min(len1, len2));
 	if (cmp == 0)
@@ -455,8 +455,8 @@ varcharge(char *arg1, char *arg2)
 
 	if (arg1 == NULL || arg2 == NULL)
 		return ((bool) 0);
-	len1 = VARSIZE(arg1);
-	len2 = VARSIZE(arg2);
+	len1 = vcTruelen(arg1);
+	len2 = vcTruelen(arg2);
 
 	cmp = strncmp(VARDATA(arg1), VARDATA(arg2), Min(len1, len2));
 	if (0 == cmp)
@@ -473,8 +473,8 @@ varcharcmp(char *arg1, char *arg2)
 				len2;
 	int			cmp;
 
-	len1 = VARSIZE(arg1);
-	len2 = VARSIZE(arg2);
+	len1 = vcTruelen(arg1);
+	len2 = vcTruelen(arg2);
 	cmp = (strncmp(VARDATA(arg1), VARDATA(arg2), Min(len1, len2)));
 	if ((0 == cmp) && (len1 != len2))
 		return (int32) (len1 < len2 ? -1 : 1);
@@ -539,7 +539,7 @@ hashvarchar(struct varlena * key)
 	int			loop;
 
 	keydata = VARDATA(key);
-	keylen = VARSIZE((char *) key);
+	keylen = vcTruelen((char *) key);
 
 #define HASHC	n = *keydata++ + 65599 * n