import newlib-2000-02-17 snapshot

18 files changed, 1374 insertions, 0 deletions

diff --git a/newlib/libc/posix/Makefile.am b/newlib/libc/posix/Makefile.am
new file mode 100644
index 000000000..afb909762
--- /dev/null
+++ b/newlib/libc/posix/Makefile.am
@@ -0,0 +1,29 @@
+## Process this file with automake to generate Makefile.in
+
+AUTOMAKE_OPTIONS = cygnus
+
+INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
+
+noinst_LIBRARIES = lib.a
+
+lib_a_SOURCES = \
+	closedir.c opendir.c readdir.c rewinddir.c scandir.c seekdir.c \
+	telldir.c execl.c execle.c execlp.c execv.c execve.c execvp.c \
+	popen.c creat.c isatty.c
+
+CHEWOUT_FILES =
+
+SUFFIXES = .def
+
+CHEW = ../../doc/makedoc -f $(srcdir)/../../doc/doc.str
+
+.c.def:
+	$(CHEW) < $< > $*.def 2> $*.ref
+	touch stmp-def
+
+TARGETDOC = ../tmp.texi
+
+# No doc for posix.
+doc:
+
+CLEANFILES = $(CHEWOUT_FILES) *.ref
diff --git a/newlib/libc/posix/Makefile.in b/newlib/libc/posix/Makefile.in
new file mode 100644
index 000000000..6b41087c7
--- /dev/null
+++ b/newlib/libc/posix/Makefile.in
@@ -0,0 +1,303 @@
+# Makefile.in generated automatically by automake 1.4 from Makefile.am
+
+# Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+
+DESTDIR =
+
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+
+top_builddir = ..
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@ $(AM_INSTALL_PROGRAM_FLAGS)
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+transform = @program_transform_name@
+
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+host_alias = @host_alias@
+host_triplet = @host@
+AR = @AR@
+AS = @AS@
+CC = @CC@
+CPP = @CPP@
+CRT0 = @CRT0@
+EXEEXT = @EXEEXT@
+LIBC_MACHINE_LIB = @LIBC_MACHINE_LIB@
+LIBC_POSIX_LIB = @LIBC_POSIX_LIB@
+LIBC_SIGNAL_DEF = @LIBC_SIGNAL_DEF@
+LIBC_SIGNAL_LIB = @LIBC_SIGNAL_LIB@
+LIBC_SYSCALL_LIB = @LIBC_SYSCALL_LIB@
+LIBC_SYS_LIB = @LIBC_SYS_LIB@
+LIBC_UNIX_LIB = @LIBC_UNIX_LIB@
+MAINT = @MAINT@
+MAKEINFO = @MAKEINFO@
+NEWLIB_CFLAGS = @NEWLIB_CFLAGS@
+PACKAGE = @PACKAGE@
+RANLIB = @RANLIB@
+VERSION = @VERSION@
+machine_dir = @machine_dir@
+newlib_basedir = @newlib_basedir@
+sys_dir = @sys_dir@
+
+AUTOMAKE_OPTIONS = cygnus
+
+INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
+
+noinst_LIBRARIES = lib.a
+
+lib_a_SOURCES = \
+	closedir.c opendir.c readdir.c rewinddir.c scandir.c seekdir.c \
+	telldir.c execl.c execle.c execlp.c execv.c execve.c execvp.c \
+	popen.c creat.c isatty.c
+
+
+CHEWOUT_FILES = 
+
+SUFFIXES = .def
+
+CHEW = ../../doc/makedoc -f $(srcdir)/../../doc/doc.str
+
+TARGETDOC = ../tmp.texi
+
+CLEANFILES = $(CHEWOUT_FILES) *.ref
+mkinstalldirs = $(SHELL) $(top_srcdir)/../../mkinstalldirs
+CONFIG_CLEAN_FILES = 
+LIBRARIES =  $(noinst_LIBRARIES)
+
+
+DEFS = @DEFS@ -I. -I$(srcdir) 
+CPPFLAGS = @CPPFLAGS@
+LDFLAGS = @LDFLAGS@
+LIBS = @LIBS@
+lib_a_LIBADD = 
+lib_a_OBJECTS =  closedir.o opendir.o readdir.o rewinddir.o scandir.o \
+seekdir.o telldir.o execl.o execle.o execlp.o execv.o execve.o execvp.o \
+popen.o creat.o isatty.o
+CFLAGS = @CFLAGS@
+COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@
+DIST_COMMON =  Makefile.am Makefile.in
+
+
+DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST)
+
+TAR = tar
+GZIP_ENV = --best
+SOURCES = $(lib_a_SOURCES)
+OBJECTS = $(lib_a_OBJECTS)
+
+all: all-redirect
+.SUFFIXES:
+.SUFFIXES: .S .c .def .o .s
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ Makefile.am $(top_srcdir)/configure.in $(ACLOCAL_M4) 
+	cd $(top_srcdir) && $(AUTOMAKE) --cygnus posix/Makefile
+
+Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status
+	cd $(top_builddir) \
+	  && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
+
+
+mostlyclean-noinstLIBRARIES:
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+distclean-noinstLIBRARIES:
+
+maintainer-clean-noinstLIBRARIES:
+
+.c.o:
+	$(COMPILE) -c $<
+
+.s.o:
+	$(COMPILE) -c $<
+
+.S.o:
+	$(COMPILE) -c $<
+
+mostlyclean-compile:
+	-rm -f *.o core *.core
+
+clean-compile:
+
+distclean-compile:
+	-rm -f *.tab.c
+
+maintainer-clean-compile:
+
+lib.a: $(lib_a_OBJECTS) $(lib_a_DEPENDENCIES)
+	-rm -f lib.a
+	$(AR) cru lib.a $(lib_a_OBJECTS) $(lib_a_LIBADD)
+	$(RANLIB) lib.a
+
+tags: TAGS
+
+ID: $(HEADERS) $(SOURCES) $(LISP)
+	list='$(SOURCES) $(HEADERS)'; \
+	unique=`for i in $$list; do echo $$i; done | \
+	  awk '    { files[$$0] = 1; } \
+	       END { for (i in files) print i; }'`; \
+	here=`pwd` && cd $(srcdir) \
+	  && mkid -f$$here/ID $$unique $(LISP)
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)'; \
+	unique=`for i in $$list; do echo $$i; done | \
+	  awk '    { files[$$0] = 1; } \
+	       END { for (i in files) print i; }'`; \
+	test -z "$(ETAGS_ARGS)$$unique$(LISP)$$tags" \
+	  || (cd $(srcdir) && etags $(ETAGS_ARGS) $$tags  $$unique $(LISP) -o $$here/TAGS)
+
+mostlyclean-tags:
+
+clean-tags:
+
+distclean-tags:
+	-rm -f TAGS ID
+
+maintainer-clean-tags:
+
+distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir)
+
+subdir = posix
+
+distdir: $(DISTFILES)
+	@for file in $(DISTFILES); do \
+	  if test -f $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    cp -pr $$/$$file $(distdir)/$$file; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || ln $$d/$$file $(distdir)/$$file 2> /dev/null \
+	    || cp -p $$d/$$file $(distdir)/$$file || :; \
+	  fi; \
+	done
+info-am:
+info: info-am
+dvi-am:
+dvi: dvi-am
+check-am:
+check: check-am
+installcheck-am:
+installcheck: installcheck-am
+install-info-am: 
+install-info: install-info-am
+install-exec-am:
+install-exec: install-exec-am
+
+install-data-am:
+install-data: install-data-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+install: install-am
+uninstall-am:
+uninstall: uninstall-am
+all-am: Makefile $(LIBRARIES)
+all-redirect: all-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) AM_INSTALL_PROGRAM_FLAGS=-s install
+installdirs:
+
+
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-rm -f Makefile $(CONFIG_CLEAN_FILES)
+	-rm -f config.cache config.log stamp-h stamp-h[0-9]*
+
+maintainer-clean-generic:
+mostlyclean-am:  mostlyclean-noinstLIBRARIES mostlyclean-compile \
+		mostlyclean-tags mostlyclean-generic
+
+mostlyclean: mostlyclean-am
+
+clean-am:  clean-noinstLIBRARIES clean-compile clean-tags clean-generic \
+		mostlyclean-am
+
+clean: clean-am
+
+distclean-am:  distclean-noinstLIBRARIES distclean-compile \
+		distclean-tags distclean-generic clean-am
+
+distclean: distclean-am
+
+maintainer-clean-am:  maintainer-clean-noinstLIBRARIES \
+		maintainer-clean-compile maintainer-clean-tags \
+		maintainer-clean-generic distclean-am
+	@echo "This command is intended for maintainers to use;"
+	@echo "it deletes files that may require special tools to rebuild."
+
+maintainer-clean: maintainer-clean-am
+
+.PHONY: mostlyclean-noinstLIBRARIES distclean-noinstLIBRARIES \
+clean-noinstLIBRARIES maintainer-clean-noinstLIBRARIES \
+mostlyclean-compile distclean-compile clean-compile \
+maintainer-clean-compile tags mostlyclean-tags distclean-tags \
+clean-tags maintainer-clean-tags distdir info-am info dvi-am dvi check \
+check-am installcheck-am installcheck install-info-am install-info \
+install-exec-am install-exec install-data-am install-data install-am \
+install uninstall-am uninstall all-redirect all-am all installdirs \
+mostlyclean-generic distclean-generic clean-generic \
+maintainer-clean-generic clean mostlyclean distclean maintainer-clean
+
+
+.c.def:
+	$(CHEW) < $< > $*.def 2> $*.ref
+	touch stmp-def
+
+# No doc for posix.
+doc:
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/newlib/libc/posix/closedir.c b/newlib/libc/posix/closedir.c
new file mode 100644
index 000000000..4ad6e4c97
--- /dev/null
+++ b/newlib/libc/posix/closedir.c
@@ -0,0 +1,62 @@
+#ifndef HAVE_OPENDIR
+
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)closedir.c	5.9 (Berkeley) 2/23/91";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+/*
+ * close a directory.
+ */
+int
+closedir(dirp)
+	register DIR *dirp;
+{
+	int fd;
+
+	fd = dirp->dd_fd;
+	dirp->dd_fd = -1;
+	dirp->dd_loc = 0;
+	(void)free((void *)dirp->dd_buf);
+	(void)free((void *)dirp);
+	return(close(fd));
+}
+
+#endif /* ! HAVE_OPENDIR */
diff --git a/newlib/libc/posix/creat.c b/newlib/libc/posix/creat.c
new file mode 100644
index 000000000..6b1116206
--- /dev/null
+++ b/newlib/libc/posix/creat.c
@@ -0,0 +1,11 @@
+/* creat() "system call" */
+
+/* This is needed by f2c and therefore the SPEC benchmarks.  */
+
+#include <fcntl.h>
+
+int
+creat (const char *path, mode_t mode)
+{
+  return open (path, O_WRONLY | O_CREAT | O_TRUNC, mode);
+}
diff --git a/newlib/libc/posix/execl.c b/newlib/libc/posix/execl.c
new file mode 100644
index 000000000..075df8eba
--- /dev/null
+++ b/newlib/libc/posix/execl.c
@@ -0,0 +1,42 @@
+/* execl.c */
+
+/* This and the other exec*.c files in this directory require 
+   the target to provide the _execve syscall.  */
+
+#include <_ansi.h>
+#include <unistd.h>
+
+#ifdef _HAVE_STDC
+
+#include <stdarg.h>
+
+int
+execl (_CONST char *path, _CONST char *arg0, ...)
+
+#else
+
+#include <varargs.h>
+
+int
+execl (path, arg0, va_alist)
+     _CONST char *path;
+     _CONST char *arg0;
+     va_dcl
+
+#endif
+
+{
+  int i;
+  va_list args;
+  _CONST char *argv[256];
+
+  va_start (args, arg0);
+  argv[0] = arg0;
+  i = 1;
+  do
+      argv[i] = va_arg (args, _CONST char *);
+  while (argv[i++] != NULL);
+  va_end (args);
+
+  return _execve (path, (char * _CONST  *) argv, environ);
+}
diff --git a/newlib/libc/posix/execle.c b/newlib/libc/posix/execle.c
new file mode 100644
index 000000000..439437023
--- /dev/null
+++ b/newlib/libc/posix/execle.c
@@ -0,0 +1,44 @@
+/* execle.c */
+
+/* This and the other exec*.c files in this directory require 
+   the target to provide the _execve syscall.  */
+
+#include <_ansi.h>
+#include <unistd.h>
+
+#ifdef _HAVE_STDC
+
+#include <stdarg.h>
+
+int
+execle (_CONST char *path, _CONST char *arg0, ...)
+
+#else
+
+#include <varargs.h>
+
+int
+execle (path, arg0, va_alist)
+     _CONST char *path;
+     _CONST char *arg0;
+     va_dcl
+
+#endif
+
+{
+  int i;
+  va_list args;
+  _CONST char * _CONST *envp;
+  _CONST char *argv[256];
+
+  va_start (args, arg0);
+  argv[0] = arg0;
+  i = 1;
+  do
+    argv[i] = va_arg (args, _CONST char *);
+  while (argv[i++] != NULL);
+  envp = va_arg (args, _CONST char * _CONST *);
+  va_end (args);
+
+  return _execve (path, (char * _CONST *) argv, (char * _CONST *) envp);
+}
diff --git a/newlib/libc/posix/execlp.c b/newlib/libc/posix/execlp.c
new file mode 100644
index 000000000..dd04914bc
--- /dev/null
+++ b/newlib/libc/posix/execlp.c
@@ -0,0 +1,42 @@
+/* execlp.c */
+
+/* This and the other exec*.c files in this directory require 
+   the target to provide the _execve syscall.  */
+
+#include <_ansi.h>
+#include <unistd.h>
+
+#ifdef _HAVE_STDC
+
+#include <stdarg.h>
+
+int
+execlp (_CONST char *path, _CONST char *arg0, ...)
+
+#else
+
+#include <varargs.h>
+
+int
+execlp (path, arg0, va_alist)
+     _CONST char *path;
+     _CONST char *arg0;
+     va_dcl
+
+#endif
+
+{
+  int i;
+  va_list args;
+  _CONST char *argv[256];
+
+  va_start (args, arg0);
+  argv[0] = arg0;
+  i = 1;
+  do
+      argv[i] = va_arg (args, _CONST char *);
+  while (argv[i++] != NULL);
+  va_end (args);
+
+  return execvp (path, (char * _CONST *) argv);
+}
diff --git a/newlib/libc/posix/execv.c b/newlib/libc/posix/execv.c
new file mode 100644
index 000000000..42a78cb52
--- /dev/null
+++ b/newlib/libc/posix/execv.c
@@ -0,0 +1,15 @@
+/* execv.c */
+
+/* This and the other exec*.c files in this directory require 
+   the target to provide the _execve syscall.  */
+
+#include <_ansi.h>
+#include <unistd.h>
+
+int
+_DEFUN (execv, (path, argv), 
+	const char *path _AND
+	char * const argv[])
+{
+  return _execve (path, (char * _CONST *) argv, environ);
+}
diff --git a/newlib/libc/posix/execve.c b/newlib/libc/posix/execve.c
new file mode 100644
index 000000000..416144e86
--- /dev/null
+++ b/newlib/libc/posix/execve.c
@@ -0,0 +1,10 @@
+/* execve.c */
+
+/* This and the other exec*.c files in this directory require 
+   the target to provide the _execve syscall.  */
+
+int
+execve (const char *path, char * const argv[], char * const envp[])
+{
+  return _execve (path, argv, envp);
+}
diff --git a/newlib/libc/posix/execvp.c b/newlib/libc/posix/execvp.c
new file mode 100644
index 000000000..6957f61b2
--- /dev/null
+++ b/newlib/libc/posix/execvp.c
@@ -0,0 +1,88 @@
+/* execvp.c */
+
+/* This and the other exec*.c files in this directory require 
+   the target to provide the _execve syscall.  */
+
+#include <_ansi.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <ctype.h>
+
+#ifdef __CYGWIN32__
+static char path_delim;
+#define PATH_DELIM path_delim
+#else
+#define PATH_DELIM ':'
+#endif
+
+/*
+ * Copy string, until c or <nul> is encountered.
+ * NUL-terminate the destination string (s1).
+ */
+
+static char *
+_DEFUN (strccpy, (s1, s2, c),
+	char *s1 _AND
+	char *s2 _AND
+	char c)
+{
+  char *dest = s1;
+
+  while (*s2 && *s2 != c)
+    *s1++ = *s2++;
+  *s1 = 0;
+
+  return dest;
+}
+
+int
+_DEFUN (execvp, (file, argv),
+	_CONST char *file _AND
+	char * _CONST argv[])
+{
+  char *path = getenv ("PATH");
+  char buf[MAXNAMLEN];
+
+  /* If $PATH doesn't exist, just pass FILE on unchanged.  */
+  if (!path)
+    return execv (file, argv);
+
+  /* If FILE contains a directory, don't search $PATH.  */
+  if (strchr (file, '/')
+#ifdef __CYGWIN32__
+      || strchr (file, '\\')
+#endif
+      )
+    return execv (file, argv);
+
+#ifdef __CYGWIN32__
+  /* If a drive letter is passed, the path is still an absolute one.
+     Technically this isn't true, but Cygwin is currently defined so
+     that it is.  */
+  if ((isalpha (file[0]) && file[1] == ':')
+      || file[0] == '\\')
+    return execv (file, argv);
+#endif
+
+#ifdef __CYGWIN32__
+  path_delim = cygwin_posix_path_list_p (path) ? ':' : ';';
+#endif
+
+  while (*path)
+    {
+      strccpy (buf, path, PATH_DELIM);
+      /* An empty entry means the current directory.  */
+      if (*buf != 0)
+	strcat (buf, "/");
+      strcat (buf, file);
+      if (execv (buf, argv) == -1 && errno != ENOENT)
+	return -1;
+      while (*path && *path != PATH_DELIM)
+	path++;
+      if (*path == PATH_DELIM)
+	path++;			/* skip over delim */
+    }
+
+  return -1;
+}
diff --git a/newlib/libc/posix/isatty.c b/newlib/libc/posix/isatty.c
new file mode 100644
index 000000000..3c64647a9
--- /dev/null
+++ b/newlib/libc/posix/isatty.c
@@ -0,0 +1,17 @@
+/* isatty.c */
+
+/* Dumb implementation so programs will at least run.  */
+
+#include <sys/stat.h>
+
+int
+isatty (int fd)
+{
+  struct stat buf;
+
+  if (fstat (fd, &buf) < 0)
+    return 0;
+  if (S_ISCHR (buf.st_mode))
+    return 1;
+  return 0;
+}
diff --git a/newlib/libc/posix/opendir.c b/newlib/libc/posix/opendir.c
new file mode 100644
index 000000000..f924c0b52
--- /dev/null
+++ b/newlib/libc/posix/opendir.c
@@ -0,0 +1,84 @@
+#ifndef HAVE_OPENDIR
+
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)opendir.c	5.11 (Berkeley) 2/23/91";
+#endif /* LIBC_SCCS and not lint */
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+/*
+ * open a directory.
+ */
+DIR *
+opendir(name)
+	const char *name;
+{
+	register DIR *dirp;
+	register int fd;
+
+	if ((fd = open(name, 0)) == -1)
+		return NULL;
+	if (fcntl(fd, F_SETFD, 1) == -1 ||
+	    (dirp = (DIR *)malloc(sizeof(DIR))) == NULL) {
+		close (fd);
+		return NULL;
+	}
+	/*
+	 * If CLSIZE is an exact multiple of DIRBLKSIZ, use a CLSIZE
+	 * buffer that it cluster boundary aligned.
+	 * Hopefully this can be a big win someday by allowing page trades
+	 * to user space to be done by getdirentries()
+	 */
+	dirp->dd_buf = malloc (512);
+	dirp->dd_len = 512;
+
+	if (dirp->dd_buf == NULL) {
+		close (fd);
+		return NULL;
+	}
+	dirp->dd_fd = fd;
+	dirp->dd_loc = 0;
+	dirp->dd_seek = 0;
+	/*
+	 * Set up seek point for rewinddir.
+	 */
+	return dirp;
+}
+
+#endif /* ! HAVE_OPENDIR */
diff --git a/newlib/libc/posix/popen.c b/newlib/libc/posix/popen.c
new file mode 100644
index 000000000..f6a7421ee
--- /dev/null
+++ b/newlib/libc/posix/popen.c
@@ -0,0 +1,170 @@
+/*	$NetBSD: popen.c,v 1.11 1995/06/16 07:05:33 jtc Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software written by Ken Arnold and
+ * published in UNIX Review, Vol. 6, No. 8.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)popen.c	8.1 (Berkeley) 6/4/93";
+#else
+static char rcsid[] = "$NetBSD: popen.c,v 1.11 1995/06/16 07:05:33 jtc Exp $";
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <signal.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <paths.h>
+
+static struct pid {
+	struct pid *next;
+	FILE *fp;
+	pid_t pid;
+} *pidlist; 
+	
+FILE *
+popen(program, type)
+	const char *program;
+	const char *type;
+{
+	struct pid *cur;
+	FILE *iop;
+	int pdes[2], pid;
+
+	if (*type != 'r' && *type != 'w' || type[1]) {
+		errno = EINVAL;
+		return (NULL);
+	}
+
+	if ((cur = malloc(sizeof(struct pid))) == NULL)
+		return (NULL);
+
+	if (pipe(pdes) < 0) {
+		free(cur);
+		return (NULL);
+	}
+
+	switch (pid = vfork()) {
+	case -1:			/* Error. */
+		(void)close(pdes[0]);
+		(void)close(pdes[1]);
+		free(cur);
+		return (NULL);
+		/* NOTREACHED */
+	case 0:				/* Child. */
+		if (*type == 'r') {
+			if (pdes[1] != STDOUT_FILENO) {
+				(void)dup2(pdes[1], STDOUT_FILENO);
+				(void)close(pdes[1]);
+			}
+			(void) close(pdes[0]);
+		} else {
+			if (pdes[0] != STDIN_FILENO) {
+				(void)dup2(pdes[0], STDIN_FILENO);
+				(void)close(pdes[0]);
+			}
+			(void)close(pdes[1]);
+		}
+		execl(_PATH_BSHELL, "sh", "-c", program, NULL);
+#ifdef __CYGWIN32__
+		/* On cygwin32, we may not have /bin/sh.  In that
+                   case, try to find sh on PATH.  */
+		execlp("sh", "sh", "-c", program, NULL);
+#endif
+		_exit(127);
+		/* NOTREACHED */
+	}
+
+	/* Parent; assume fdopen can't fail. */
+	if (*type == 'r') {
+		iop = fdopen(pdes[0], type);
+		(void)close(pdes[1]);
+	} else {
+		iop = fdopen(pdes[1], type);
+		(void)close(pdes[0]);
+	}
+
+	/* Link into list of file descriptors. */
+	cur->fp = iop;
+	cur->pid =  pid;
+	cur->next = pidlist;
+	pidlist = cur;
+
+	return (iop);
+}
+
+/*
+ * pclose --
+ *	Pclose returns -1 if stream is not associated with a `popened' command,
+ *	if already `pclosed', or waitpid returns an error.
+ */
+int
+pclose(iop)
+	FILE *iop;
+{
+	register struct pid *cur, *last;
+	int pstat;
+	pid_t pid;
+
+	(void)fclose(iop);
+
+	/* Find the appropriate file pointer. */
+	for (last = NULL, cur = pidlist; cur; last = cur, cur = cur->next)
+		if (cur->fp == iop)
+			break;
+	if (cur == NULL)
+		return (-1);
+
+	do {
+		pid = waitpid(cur->pid, &pstat, 0);
+	} while (pid == -1 && errno == EINTR);
+
+	/* Remove the entry from the linked list. */
+	if (last == NULL)
+		pidlist = cur->next;
+	else
+		last->next = cur->next;
+	free(cur);
+		
+	return (pid == -1 ? -1 : pstat);
+}
diff --git a/newlib/libc/posix/readdir.c b/newlib/libc/posix/readdir.c
new file mode 100644
index 000000000..308330cb0
--- /dev/null
+++ b/newlib/libc/posix/readdir.c
@@ -0,0 +1,76 @@
+#ifndef HAVE_OPENDIR
+
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)readdir.c	5.7 (Berkeley) 6/1/90";
+#endif /* LIBC_SCCS and not lint */
+
+#include <dirent.h>
+
+/*
+ * get next entry in a directory.
+ */
+struct dirent *
+readdir(dirp)
+register DIR *dirp; {
+  register struct dirent *dp;
+  
+  for (;;) {
+    if (dirp->dd_loc == 0) {
+      dirp->dd_size = getdents (dirp->dd_fd,
+				dirp->dd_buf,
+				dirp->dd_len);
+      
+      if (dirp->dd_size <= 0)
+	return NULL;
+    }
+    if (dirp->dd_loc >= dirp->dd_size) {
+      dirp->dd_loc = 0;
+      continue;
+    }
+    dp = (struct dirent *)(dirp->dd_buf + dirp->dd_loc);
+    if ((int)dp & 03)	/* bogus pointer check */
+      return NULL;
+    if (dp->d_reclen <= 0 ||
+	dp->d_reclen > dirp->dd_len + 1 - dirp->dd_loc)
+      return NULL;
+    dirp->dd_loc += dp->d_reclen;
+    if (dp->d_ino == 0)
+      continue;
+    return (dp);
+  }
+}
+
+#endif /* ! HAVE_OPENDIR */
diff --git a/newlib/libc/posix/rewinddir.c b/newlib/libc/posix/rewinddir.c
new file mode 100644
index 000000000..6a3814b55
--- /dev/null
+++ b/newlib/libc/posix/rewinddir.c
@@ -0,0 +1,50 @@
+#ifndef HAVE_OPENDIR
+
+/*
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)rewinddir.c	5.1 (Berkeley) 5/25/90";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <dirent.h>
+
+void
+rewinddir(dirp)
+	DIR *dirp;
+{
+	_seekdir((dirp), (off_t)0);
+}
+
+#endif /* ! HAVE_OPENDIR */
diff --git a/newlib/libc/posix/scandir.c b/newlib/libc/posix/scandir.c
new file mode 100644
index 000000000..895879bac
--- /dev/null
+++ b/newlib/libc/posix/scandir.c
@@ -0,0 +1,142 @@
+#ifndef HAVE_OPENDIR
+
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)scandir.c	5.10 (Berkeley) 2/23/91";
+#endif /* LIBC_SCCS and not lint */
+
+/*
+ * Scan the directory dirname calling select to make a list of selected
+ * directory entries then sort using qsort and compare routine dcomp.
+ * Returns the number of entries and a pointer to a list of pointers to
+ * struct dirent (through namelist). Returns -1 if there were any errors.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * The DIRSIZ macro gives the minimum record length which will hold
+ * the directory entry.  This requires the amount of space in struct dirent
+ * without the d_name field, plus enough space for the name with a terminating
+ * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary.
+ */
+#undef DIRSIZ
+#define DIRSIZ(dp) \
+    ((sizeof (struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
+
+#ifndef __P
+#define __P(args) ()
+#endif
+
+int
+scandir(dirname, namelist, select, dcomp)
+	const char *dirname;
+	struct dirent ***namelist;
+	int (*select) __P((struct dirent *));
+	int (*dcomp) __P((const void *, const void *));
+{
+	register struct dirent *d, *p, **names;
+	register size_t nitems;
+	struct stat stb;
+	long arraysz;
+	DIR *dirp;
+
+	if ((dirp = opendir(dirname)) == NULL)
+		return(-1);
+	if (fstat(dirp->dd_fd, &stb) < 0)
+		return(-1);
+
+	/*
+	 * estimate the array size by taking the size of the directory file
+	 * and dividing it by a multiple of the minimum size entry. 
+	 */
+	arraysz = (stb.st_size / 24);
+	names = (struct dirent **)malloc(arraysz * sizeof(struct dirent *));
+	if (names == NULL)
+		return(-1);
+
+	nitems = 0;
+	while ((d = readdir(dirp)) != NULL) {
+		if (select != NULL && !(*select)(d))
+			continue;	/* just selected names */
+		/*
+		 * Make a minimum size copy of the data
+		 */
+		p = (struct dirent *)malloc(DIRSIZ(d));
+		if (p == NULL)
+			return(-1);
+		p->d_ino = d->d_ino;
+		p->d_reclen = d->d_reclen;
+		p->d_namlen = d->d_namlen;
+		bcopy(d->d_name, p->d_name, p->d_namlen + 1);
+		/*
+		 * Check to make sure the array has space left and
+		 * realloc the maximum size.
+		 */
+		if (++nitems >= arraysz) {
+			if (fstat(dirp->dd_fd, &stb) < 0)
+				return(-1);	/* just might have grown */
+			arraysz = stb.st_size / 12;
+			names = (struct dirent **)realloc((char *)names,
+				arraysz * sizeof(struct dirent *));
+			if (names == NULL)
+				return(-1);
+		}
+		names[nitems-1] = p;
+	}
+	closedir(dirp);
+	if (nitems && dcomp != NULL)
+		qsort(names, nitems, sizeof(struct dirent *), dcomp);
+	*namelist = names;
+	return(nitems);
+}
+
+/*
+ * Alphabetic order comparison routine for those who want it.
+ */
+int
+alphasort(d1, d2)
+	const void *d1;
+	const void *d2;
+{
+	return(strcmp((*(struct dirent **)d1)->d_name,
+	    (*(struct dirent **)d2)->d_name));
+}
+
+#endif /* ! HAVE_OPENDIR */
diff --git a/newlib/libc/posix/seekdir.c b/newlib/libc/posix/seekdir.c
new file mode 100644
index 000000000..dab3bfb24
--- /dev/null
+++ b/newlib/libc/posix/seekdir.c
@@ -0,0 +1,56 @@
+#ifndef HAVE_OPENDIR
+
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)seekdir.c	5.7 (Berkeley) 6/1/90";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <dirent.h>
+
+/*
+ * Seek to an entry in a directory.
+ * _seekdir is in telldir.c so that it can share opaque data structures.
+ */
+void
+seekdir(dirp, loc)
+	DIR *dirp;
+	long loc;
+{
+
+	_seekdir(dirp, loc);
+}
+
+#endif /* ! HAVE_OPENDIR */
diff --git a/newlib/libc/posix/telldir.c b/newlib/libc/posix/telldir.c
new file mode 100644
index 000000000..90b12f99c
--- /dev/null
+++ b/newlib/libc/posix/telldir.c
@@ -0,0 +1,133 @@
+#ifndef HAVE_OPENDIR
+
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)telldir.c	5.9 (Berkeley) 2/23/91";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <dirent.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+/*
+ * The option SINGLEUSE may be defined to say that a telldir
+ * cookie may be used only once before it is freed. This option
+ * is used to avoid having memory usage grow without bound.
+ */
+#define SINGLEUSE
+
+/*
+ * One of these structures is malloced to describe the current directory
+ * position each time telldir is called. It records the current magic 
+ * cookie returned by getdirentries and the offset within the buffer
+ * associated with that return value.
+ */
+struct ddloc {
+	struct	ddloc *loc_next;/* next structure in list */
+	long	loc_index;	/* key associated with structure */
+	long	loc_seek;	/* magic cookie returned by getdirentries */
+	long	loc_loc;	/* offset of entry in buffer */
+};
+
+#define	NDIRHASH	32	/* Num of hash lists, must be a power of 2 */
+#define	LOCHASH(i)	((i)&(NDIRHASH-1))
+
+static long	dd_loccnt;	/* Index of entry for sequential readdir's */
+static struct	ddloc *dd_hash[NDIRHASH];   /* Hash list heads for ddlocs */
+
+/*
+ * return a pointer into a directory
+ */
+long
+telldir(dirp)
+	const DIR *dirp;
+{
+	register int index;
+	register struct ddloc *lp;
+
+	if ((lp = (struct ddloc *)malloc(sizeof(struct ddloc))) == NULL)
+		return (-1);
+	index = dd_loccnt++;
+	lp->loc_index = index;
+	lp->loc_seek = dirp->dd_seek;
+	lp->loc_loc = dirp->dd_loc;
+	lp->loc_next = dd_hash[LOCHASH(index)];
+	dd_hash[LOCHASH(index)] = lp;
+	return (index);
+}
+
+/*
+ * seek to an entry in a directory.
+ * Only values returned by "telldir" should be passed to seekdir.
+ */
+void
+_seekdir(dirp, loc)
+	register DIR *dirp;
+	long loc;
+{
+	register struct ddloc *lp;
+	register struct ddloc **prevlp;
+	struct dirent *dp;
+	extern long lseek();
+
+	prevlp = &dd_hash[LOCHASH(loc)];
+	lp = *prevlp;
+	while (lp != NULL) {
+		if (lp->loc_index == loc)
+			break;
+		prevlp = &lp->loc_next;
+		lp = lp->loc_next;
+	}
+	if (lp == NULL)
+		return;
+	if (lp->loc_loc == dirp->dd_loc && lp->loc_seek == dirp->dd_seek)
+		goto found;
+	(void) lseek(dirp->dd_fd, lp->loc_seek, 0);
+	dirp->dd_seek = lp->loc_seek;
+	dirp->dd_loc = 0;
+	while (dirp->dd_loc < lp->loc_loc) {
+		dp = readdir(dirp);
+		if (dp == NULL)
+			break;
+	}
+found:
+#ifdef SINGLEUSE
+	*prevlp = lp->loc_next;
+	free((caddr_t)lp);
+#endif
+}
+
+#endif /* ! HAVE_OPENDIR */