Noted with versions 7.0.3, 7.1.3, and 7.2.1:

The psql interpreter becomes unstable if variable substitutions
are used.  The debugger GDB was unable to help however mpatrol
reports that the sprintf at mainloop.c:389 is steping one byte
farther than the allocation.

William K. Volkman

diff --git a/src/bin/psql/mainloop.c b/src/bin/psql/mainloop.c
index 06ca83a7fe19e58f7e0d1c0c5280f0ae15ad47bc..0a6981ed4e3cb574927f397052b03d0246d02794 100644 (file)
--- a/src/bin/psql/mainloop.c
+++ b/src/bin/psql/mainloop.c
@@ -3,7 +3,7 @@
  *
  * Copyright 2000 by PostgreSQL Global Development Group
  *
- * $Header: /cvsroot/pgsql/src/bin/psql/mainloop.c,v 1.47 2002/03/27 19:16:13 petere Exp $
+ * $Header: /cvsroot/pgsql/src/bin/psql/mainloop.c,v 1.48 2002/06/15 19:37:48 momjian Exp $
  */
 #include "postgres_fe.h"
 #include "mainloop.h"
@@ -378,7 +378,8 @@ MainLoop(FILE *source)
                                {
                                        out_length = strlen(value);
 
-                                       new = malloc(len + out_length - (1 + in_length) + 1);
+                                       /* Allow for 'after' character also 2002-05-27 */
+                                       new = malloc(len + out_length - (1 + in_length) + 1 + 1);
                                        if (!new)
                                        {
                                                psql_error("out of memory\n");