Update.

2005-01-06  Ulrich Drepper  <drepper@redhat.com>

	* misc/sys/cdefs.h: Define __wur.
	* libio/stdio.h: Use __wur for a number of interfaces.
	* posix/unistd.h: Likewise.

	* posix/regex_internal.c (free_state): Free word_trtable.

ChangeLog

@@ -1,3 +1,9 @@
+2005-01-06  Ulrich Drepper  <drepper@redhat.com>
+
+	* misc/sys/cdefs.h: Define __wur.
+	* libio/stdio.h: Use __wur for a number of interfaces.
+	* posix/unistd.h: Likewise.
+
 2004-12-29  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/ia64/fpu/libm_support.h (__libm_error_support): Use
@@ -342,6 +348,7 @@
 	(transit_state): Expect state->trtable to be a 256-item
 	transition table.  Reorganize code to have less tests in
 	the common case, and to save an indentation level.
+	* posix/regex_internal.c (free_state): Free word_trtable.
 
 2004-12-21  Jakub Jelinek  <jakub@redhat.com>
 

WUR-REPORT

@@ -0,0 +1,25 @@
+<unistd.h>:
+
+lssek:   Probably should be __wur but lseek(fd,SEEK_SET,0) will succeed if
+         the descriptor is fine.
+lseek64: same
+
+setuid:  will always succeed given correct privileges, so there might
+         be places which don't check for it.
+setreuid: same
+seteuid: same
+setgid:  same
+setregid: same
+setegid: same
+setresuid: same
+setresgid: same
+
+
+<stdio.h>:
+
+setvbuf:   if stream and buffer are fine and other parameters constant,
+           it cannot really fail.
+fseek:     see lseek
+fseeko:    likewise
+fgetpos:   similarly
+fsetpos:   likewise

misc/sys/cdefs.h

@@ -255,6 +255,14 @@
 # define __nonnull(params)
 #endif
 
+/* If fortification mode, we warn about unused results of certain
+   function calls which can lead to problems.  */
+#if __GNUC_PREREQ (3,4) && __USE_FORTIFY_LEVEL > 0
+# define __wur __attribute__ ((__warn_unused_result__))
+#else
+# define __wur /* Ignore */
+#endif
+
 /* It is possible to compile containing GCC extensions even if GCC is
    run in pedantic mode if the uses are carefully marked using the
    `__extension__' keyword.  But this is not generally available before

posix/regex_internal.c

@@ -1668,6 +1668,7 @@ free_state (state)
       re_free (state->entrance_nodes);
     }
   re_node_set_free (&state->nodes);
+  re_free (state->word_trtable);
   re_free (state->trtable);
   re_free (state);
 }