Fix unportable usages of tolower(). On signed-char machines, it is necessary

to explicitly cast the output back to char before comparing it to a char
value, else we get the wrong result for high-bit-set characters.  Found by
Rolf Jentsch.  Also, fix several places where <ctype.h> functions were being
called without casting the argument to unsigned char; this is likewise
unportable, but we keep making that mistake :-(.  These found by buildfarm
member salamander, which I will desperately miss if it ever goes belly-up.

diff --git a/src/backend/utils/adt/like_match.c b/src/backend/utils/adt/like_match.c
index 915b9bd0d7ef4f7a1f5311bad10311808d4a4216..4a8f96c7d40e807ede4fb838f19850dcb6d38f1a 100644 (file)
--- a/src/backend/utils/adt/like_match.c
+++ b/src/backend/utils/adt/like_match.c
@@ -19,7 +19,7 @@
  * Copyright (c) 1996-2008, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
- *     $PostgreSQL: pgsql/src/backend/utils/adt/like_match.c,v 1.20 2008/01/01 19:45:52 momjian Exp $
+ *     $PostgreSQL: pgsql/src/backend/utils/adt/like_match.c,v 1.21 2008/03/01 03:26:34 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -71,7 +71,7 @@
  */
 
 #ifdef MATCH_LOWER
-#define TCHAR(t) tolower((t))
+#define TCHAR(t) ((char) tolower((unsigned char) (t)))
 #else
 #define TCHAR(t) (t)
 #endif

diff --git a/src/interfaces/ecpg/ecpglib/execute.c b/src/interfaces/ecpg/ecpglib/execute.c
index 20231c62a7df806108bcce8d98dd772ba96dab6f..f7bfd9dca7f8775173a70c9a32e4cae92c83d5e4 100644 (file)
--- a/src/interfaces/ecpg/ecpglib/execute.c
+++ b/src/interfaces/ecpg/ecpglib/execute.c
@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.76 2008/02/07 11:09:12 meskes Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.77 2008/03/01 03:26:34 tgl Exp $ */
 
 /*
  * The aim is to get a simpler inteface to the database routines.
@@ -122,13 +122,15 @@ next_insert(char *text, int pos, bool questionmarks)
                        string = string ? false : true;
                else if (!string)
                {
-                       if (text[p] == '$' && isdigit(text[p + 1]))
+                       if (text[p] == '$' && isdigit((unsigned char) text[p + 1]))
                        {
                                /* this can be either a dollar quote or a variable */
                                int                     i;
 
-                               for (i = p + 1; isdigit(text[i]); i++);
-                               if (!isalpha(text[i]) && isascii(text[i]) && text[i] != '_')
+                               for (i = p + 1; isdigit((unsigned char) text[i]); i++)
+                                       /* empty loop body */ ;
+                               if (!isalpha((unsigned char) text[i]) &&
+                                       isascii((unsigned char) text[i]) && text[i] != '_')
                                        /* not dollar delimited quote */
                                        return p;
                        }

diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index 43efc431dba1693cd5a4205c29389281228d1344..0cc168b90643787e2a25dbe8fda16a21ade44b4d 100644 (file)
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.361 2008/02/15 22:17:06 tgl Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.362 2008/03/01 03:26:35 tgl Exp $ */
 
 /* Copyright comment */
 %{
@@ -5847,7 +5847,7 @@ prepared_name: name               {
                                                int i;
 
                                                for (i = 0; i< strlen($1); i++)
-                                                       $1[i] = tolower($1[i]);
+                                                       $1[i] = tolower((unsigned char) $1[i]);
 
                                                $$ = make3_str(make_str("\""), $1, make_str("\""));
                                        }