MakeRetrieveViewRuleName was scribbling on memory that didn't belong

to it.  Bad dog.

diff --git a/src/backend/commands/view.c b/src/backend/commands/view.c
index 0f726e8..a421119 100644 (file)
--- a/src/backend/commands/view.c
+++ b/src/backend/commands/view.c
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- *     $Id: view.c,v 1.51 2000/12/21 17:36:15 tgl Exp $
+ *     $Id: view.c,v 1.52 2001/01/03 18:43:09 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -110,19 +110,20 @@ char *
 MakeRetrieveViewRuleName(char *viewName)
 {
        char       *buf;
-#ifdef MULTIBYTE
-       int                     len;
-#endif
-
-       buf = palloc(strlen(viewName) + 5);
-       snprintf(buf, strlen(viewName) + 5, "_RET%s", viewName);
+       int                     buflen,
+                               maxlen;
 
+       buflen = strlen(viewName) + 5;
+       buf = palloc(buflen);
+       snprintf(buf, buflen, "_RET%s", viewName);
+       /* clip to less than NAMEDATALEN bytes, if necessary */
 #ifdef MULTIBYTE
-       len = pg_mbcliplen(buf,strlen(buf),NAMEDATALEN-1);
-       buf[len] = '\0';
+       maxlen = pg_mbcliplen(buf, strlen(buf), NAMEDATALEN-1);
 #else
-       buf[NAMEDATALEN-1] = '\0';
+       maxlen = NAMEDATALEN-1;
 #endif
+       if (maxlen < buflen)
+               buf[maxlen] = '\0';
 
        return buf;
 }