Improve standards conformance: ecvt(), fcvt(), gcvt(), mktemp(), ttyslot(),

and valloc() are not in the current version, while posix_memalign() mkstemp(),
and mkdtemp() are, and setstate()'s argument has lost a bogus 'const'.
ok millert@ jmc@ espie@ kettenis@; ports build testing by naddy@

src/include/stdlib.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: stdlib.h,v 1.49 2011/07/03 18:51:01 jsg Exp $	*/
+/*	$OpenBSD: stdlib.h,v 1.50 2012/06/01 01:01:57 guenther Exp $	*/
 /*	$NetBSD: stdlib.h,v 1.25 1995/12/27 21:19:08 jtc Exp $	*/
 
 /*-
@@ -117,17 +117,13 @@ void	*bsearch(const void *, const void *, size_t, size_t,
 	    int (*)(const void *, const void *));
 void	*calloc(size_t, size_t);
 div_t	 div(int, int);
-char	*ecvt(double, int, int *, int *);
 __dead void	 exit(int);
 __dead void	 _Exit(int);
-char	*fcvt(double, int, int *, int *);
 void	 free(void *);
-char	*gcvt(double, int, char *);
 char	*getenv(const char *);
 long	 labs(long);
 ldiv_t	 ldiv(long, long);
 void	*malloc(size_t);
-int	 posix_memalign(void **, size_t, size_t);
 void	 qsort(void *, size_t, size_t, int (*)(const void *, const void *));
 int	 rand(void);
 void	*realloc(void *, size_t);
@@ -151,8 +147,7 @@ size_t	 wcstombs(char *, const wchar_t *, size_t);
 /*
  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
  */
-#if __BSD_VISIBLE || __POSIX_VISIBLE >= 199506 || __XPG_VISIBLE >= 500 || \
-	defined(_REENTRANT)
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 199506 || defined(_REENTRANT)
 int	 rand_r(unsigned int *);
 #endif
 
@@ -170,6 +165,19 @@ void	 srand48(long);
 int	 putenv(char *);
 #endif
 
+/*
+ * XSI functions marked LEGACY in IEEE Std 1003.1-2001 (POSIX) and
+ * removed in IEEE Std 1003.1-2008
+ */
+#if __BSD_VISIBLE || __XPG_VISIBLE < 700
+char	*ecvt(double, int, int *, int *);
+char	*fcvt(double, int, int *, int *);
+char	*gcvt(double, int, char *);
+#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
+char	*mktemp(char *);
+#endif
+#endif	/* __BSD_VISIBLE || __XPG_VISIBLE < 700 */
+
 #if __BSD_VISIBLE || __XPG_VISIBLE >= 420
 long	 a64l(const char *);
 char	*l64a(long);
@@ -177,21 +185,29 @@ char	*l64a(long);
 char	*initstate(unsigned int, char *, size_t)
 		__attribute__((__bounded__ (__string__,2,3)));
 long	 random(void);
-char	*setstate(const char *);
+char	*setstate(char *);
 void	 srandom(unsigned int);
 
-int	 mkstemp(char *);
-char	*mktemp(char *);
-
 char	*realpath(const char *, char *);
 
 int	 setkey(const char *);
 
+/*
+ * XSI functions marked LEGACY in XPG5 and removed in IEEE Std 1003.1-2001
+ */
+#if __BSD_VISIBLE || __XPG_VISIBLE < 600
 int	 ttyslot(void);
-
 void	*valloc(size_t);		/* obsoleted by malloc() */
+#endif
 #endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
 
+/*
+ * 4.4BSD, then XSI in XPG4.2, then added to POSIX base in IEEE Std 1003.1-2008
+ */
+#if __BSD_VISIBLE || __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200809
+int	 mkstemp(char *);
+#endif
+
 /*
  * ISO C99
  */
@@ -211,11 +227,19 @@ unsigned long long
 /*
  * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX)
  */
-#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE >= 600
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112
+int	 posix_memalign(void **, size_t, size_t);
 int	 setenv(const char *, const char *, int);
 int	 unsetenv(const char *);
 #endif
 
+/*
+ * The Open Group Base Specifications, Issue 7; IEEE Std 1003.1-2008 (POSIX)
+ */
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
+char	*mkdtemp(char *);
+#endif
+
 #if __BSD_VISIBLE
 void	*alloca(size_t); 
 
@@ -247,7 +271,6 @@ int	 getsubopt(char **, char * const *, char **);
 extern	 char *suboptarg;		/* getsubopt(3) external variable */
 #endif /* _GETOPT_DEFINED_ */
 
-char	*mkdtemp(char *);
 int	 mkstemps(char *, int);
 
 int	 heapsort(void *, size_t, size_t, int (*)(const void *, const void *));

src/lib/libc/stdlib/ecvt.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: ecvt.3,v 1.9 2010/04/01 17:06:55 jmc Exp $
+.\" $OpenBSD: ecvt.3,v 1.10 2012/06/01 01:01:57 guenther Exp $
 .\"
 .\" Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
 .\"
@@ -18,7 +18,7 @@
 .\" Agency (DARPA) and Air Force Research Laboratory, Air Force
 .\" Materiel Command, USAF, under agreement number F39502-99-1-0512.
 .\"
-.Dd $Mdocdate: April 1 2010 $
+.Dd $Mdocdate: June 1 2012 $
 .Dt ECVT 3
 .Os
 .Sh NAME
@@ -148,7 +148,10 @@ The
 and
 .Fn gcvt
 functions conform to
-.St -p1003.1-2001 .
+.St -p1003.1-2001 ;
+as of
+.St -p1003.1-2008
+they are no longer a part of the standard.
 .Sh CAVEATS
 The
 .Fn ecvt

src/lib/libc/stdlib/random.3

@@ -25,9 +25,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: random.3,v 1.19 2007/05/31 19:19:31 jmc Exp $
+.\"	$OpenBSD: random.3,v 1.20 2012/06/01 01:01:57 guenther Exp $
 .\"
-.Dd $Mdocdate: May 31 2007 $
+.Dd $Mdocdate: June 1 2012 $
 .Dt RANDOM 3
 .Os
 .Sh NAME
@@ -48,7 +48,7 @@
 .Ft char *
 .Fn initstate "unsigned int seed" "char *state" "size_t n"
 .Ft char *
-.Fn setstate "const char *state"
+.Fn setstate "char *state"
 .Sh DESCRIPTION
 The
 .Fn random

src/lib/libc/stdlib/random.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: random.c,v 1.16 2012/03/21 12:36:49 millert Exp $ */
+/*	$OpenBSD: random.c,v 1.17 2012/06/01 01:01:57 guenther Exp $ */
 /*
  * Copyright (c) 1983 Regents of the University of California.
  * All rights reserved.
@@ -326,7 +326,7 @@ initstate(u_int seed, char *arg_state, size_t n)
  * Returns a pointer to the old state information.
  */
 char *
-setstate(const char *arg_state)
+setstate(char *arg_state)
 {
 	int32_t *new_state = (int32_t *)arg_state;
 	int32_t type = new_state[0] % MAX_TYPES;