update from main archive 961217cvs/libc-961219cvs/libc-961218

Wed Dec 18 03:31:58 1996  Ulrich Drepper  <drepper@cygnus.com>

	* dirent/scandir.c: Undo change from Mon Dec  2 15:32:15 1996.
	The stream is private and usages outside glibc don't care about
	reentrancy.
	* io/fts.c: Likewise.
	* io/ftw.c: Likewise.
	* sysdeps/posix/getcwd.c: Likewise.
	* sysdeps/posix/ttyname.c: Likewise.
	* sysdeps/posix/ttyname_r.c: Likewise.
	* sysdeps/posix/glob.c: Likewise.

	* libio/iovsprintf.c: Add cast to prevent warning.
	* libio/iovsscanf.c: Likewise.

	* libio/libioP.h: Define mmap to __mmap and munmap to __munmap
	to keep namespace clean.

	* new-malloc/malloc.c: Update to last version from Wolfram Gloger.
	Add hooks and check functions from old GNU malloc.
	* new-malloc/malloc.h: Likewise.

	* nis/ypclnt.c: Remove prototype for xdr_free.
	* snrpc/rpc/xdr.h: Add prototype for xdr_free.

	* manual/nss.texi: Correct description of default values and don't
	meantion NSS as an add-on.

	* nss/grp-lookup.c: Provide default value as
	"compat [NOTFOUND=return] files".
	* nss/pwd-lookup.c: Likewise.
	* nss/spwd-lookup.c: Likewise.
	* nss/network-lookup.c: Correct default to
	"dns [!UNAVAIL=return] files".
	* nss/nsswitch.c: Change default-default value to "nis
	[NOTFOUND=return] files" since compat is only available for group,
	passwd, and shadow.

	* stdlib/on_exit.c (on_exit): Rename to __on_exit and make old name
	a weak alias.
	* stdlib/stdlib.h: Add prototype for __on_exit.

	* sysdeps/unix/sysv/linux/schedbits.h: Add prototype for __clone.

	* time/Makefile: Undo change from Sun Dec  8 06:56:49 1996.
	The new malloc now has mcheck.
	* time/ap.c: Likewise.

	* time/tzset.c (__tzset): Rename to __tzset_internal.
	(tzset): Rename to __tzset.  Make tzset a weak alias for __tzset.
	* time/localtime.c: Use __tzset_internal not __tzset.
	* time/strftime.c [_LIBC]: Define tzname as __tzname and tzset
	as __tzset to prevent namespace pollution.

	* wctype/iswctype.h (icwctype): Rename to __iswctype.  Make iswctype
	a weak alias of __iswctype.
	* wctype/wctype.h: Add prototype for __iswctype.
	(iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswgraph,
	iswprint, iswpunct, iswspace, iswupper, iswxdigit, iswblank):
	Use __iswctype for the test, not iswctype.

1996-12-16  Paul Eggert  <eggert@twinsun.com>

	* hurd/hurd/sigpreempt.h
	(struct hurd_signal_preemptor.preemptor, _hurdsig_preemptors),
	hurd/hurd/signal.h (struct hurd_sigstate.preemptors),
	hurd/hurdfault.c, hurd/hurdfault.h (_hurdsig_fault_preemptor),
	hurd/hurdsig.c (_hurdsig_preempters):
	Renamed to fix spelling from `preempter' to `preemptor'.
	All uses changed.

1996-12-15  Paul Eggert  <eggert@twinsun.com>

	* ctime.c (ctime): Return asctime (localtime (t)), as the C
	standard requires.

Tue Dec 17 02:05:48 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* sysdeps/mach/libc-lock.h (__libc_lock_trylock): Invert return
	value because Mach/cthreads uses the opposite convention from
	Posix/glibc.

Mon Dec 16 22:41:01 1996  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/fcloseall.c: Correct test of already_called.
	Reported by Thomas Bushnell, n/BSG.

Mon Dec 16 14:52:07 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* mach/lock-intern.h (__mutex_try_lock): New function.

Sun Dec 15 16:33:44 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* termios/sys/ttydefaults.h (TTYDEF_OFLAG): Only use OXTABS if
	defined, else XTABS.
	(CEOL, CSTATUS): Use _POSIX_VDISABLE if defined.

Sun Dec 15 11:56:19 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/m68k/mremap.S: New file.
	* sysdeps/unix/sysv/linux/m68k/Dist: Distribute it.
	* sysdeps/unix/sysv/linux/m68k/Makefile (sysdep_routines): Add mremap.

3 files changed, 10 insertions, 19 deletions

diff --git a/sysdeps/posix/getcwd.c b/sysdeps/posix/getcwd.c
index 4ea90a7320..a83b286380 100644
--- a/sysdeps/posix/getcwd.c
+++ b/sysdeps/posix/getcwd.c
@@ -187,10 +187,6 @@ extern char *alloca ();
 #define __getcwd getcwd
 #endif
 
-#if defined HAVE_READDIR_R && !defined _LIBC
-#define __readdir_r readdir_r
-#endif
-
 /* Get the pathname of the current working directory, and put it in SIZE
    bytes of BUF.  Returns NULL if the directory couldn't be determined or
    SIZE was too small.  If successful, returns BUF.  In GNU, if BUF is
@@ -254,9 +250,6 @@ __getcwd (buf, size)
     {
       register DIR *dirstream;
       struct dirent *d;
-#if defined HAVE_READDIR_R || defined _LIBC
-      struct dirent dirbuf;
-#endif
       dev_t dotdev;
       ino_t dotino;
       char mount_point;
@@ -299,13 +292,7 @@ __getcwd (buf, size)
       dirstream = __opendir (dotp);
       if (dirstream == NULL)
 	goto lose;
-      while (
-#if defined HAVE_READDIR_R || defined _LIBC
-	     __readdir_r (dirstream, &dirbuf, &d) >= 0
-#else
-	     (d = __readdir (dirstream)) != NULL
-#endif
-	     )
+      while ((d = __readdir (dirstream)) != NULL)
 	{
 	  if (d->d_name[0] == '.' &&
 	      (d->d_name[1] == '\0' ||
diff --git a/sysdeps/posix/ttyname.c b/sysdeps/posix/ttyname.c
index 043e91b084..ce384ebc0e 100644
--- a/sysdeps/posix/ttyname.c
+++ b/sysdeps/posix/ttyname.c
@@ -41,7 +41,7 @@ ttyname (fd)
   dev_t mydev;
   ino_t myino;
   DIR *dirstream;
-  struct dirent dirbuf, *d;
+  struct dirent *d;
   int save = errno;
 
   if (!__isatty (fd))
@@ -56,7 +56,7 @@ ttyname (fd)
   if (dirstream == NULL)
     return NULL;
 
-  while (__readdir_r (dirstream, &dirbuf, &d) >= 0)
+  while ((d = readdir (dirstream)) != NULL)
     if ((ino_t) d->d_fileno == myino)
       {
 	size_t dlen = _D_ALLOC_NAMLEN (d);
@@ -66,7 +66,11 @@ ttyname (fd)
 	    namelen = 2 * (sizeof (dev) + dlen); /* Big enough.  */
 	    name = malloc (namelen);
 	    if (! name)
-	      return NULL;
+	      {
+		/* Perhaps it helps to free the directory stream buffer.  */
+		(void) closedir (dirstream);
+		return NULL;
+	      }
 	    (void) memcpy (name, dev, sizeof (dev) - 1);
 	    name[sizeof (dev) - 1] = '/';
 	  }
diff --git a/sysdeps/posix/ttyname_r.c b/sysdeps/posix/ttyname_r.c
index c7cf21aeee..d404245be5 100644
--- a/sysdeps/posix/ttyname_r.c
+++ b/sysdeps/posix/ttyname_r.c
@@ -43,7 +43,7 @@ __ttyname_r (fd, buf, buflen)
   dev_t mydev;
   ino_t myino;
   DIR *dirstream;
-  struct dirent dirbuf, *d;
+  struct dirent *d;
   int save = errno;
 
   /* Test for the absolute minimal size.  This makes life easier inside
@@ -74,7 +74,7 @@ __ttyname_r (fd, buf, buflen)
   buf[sizeof (dev) - 1] = '/';
   buflen -= sizeof (dev);
 
-  while (__readdir_r (dirstream, &dirbuf, &d) >= 0)
+  while ((d = readdir (dirstream)) != NULL)
     if ((ino_t) d->d_fileno == myino)
       {
 	char *cp;