2002-07-17 Jeff Johnston <jjohnstn@redhat.com>

        * configure.host(stdio64_dir): New setting that is used to
        enable building of new stdio64 directory.
        * libc/Makefile.am[HAVE_STDIO64_DIR]: Add support for
        large files.
        (stmp-stdio64,stdio64.texi): New targets to optionally add in
        stdio64 info to info files.
        * libc/Makefile.in: Regenerated.
        * libc/configure: Ditto.
        * libc/configure.in: Add configuration variables that are set
        when stdio64 is selected as subdir in configure.host.
        * libc/libc.texinfo: Add optional menu item for Stdio64, based
        on whether STDIO64 flag is set or not.
        * libc/sys.tex: Add optional stdio64 syscalls based on whether
        STDIO64 flag is set or not.
        * libc/include/reent.h[__LARGE64_FILES]: Add new stdio64
        _r sycall routines.
        * libc/include/stdio.h[__LARGE64_FILES]: Add new stdio64 prototypes.
        (FILE): Typedef'd to __FILE instead of struct __sFILE directly.
        (__SL64): New file flag indicating file is opened via fopen64.
        * libc/include/sys/_types.h(_off64_t): Added.
        * libc/include/sys/config.h: For x86-linux, define __LARGE64_FILES.
        * libc/include/sys/reent.h(struct __sFILE64): New file structure
        for 64-bit offset large file support.
        (__FILE): New intermediate type either set to struct __sFILE64 or
        struct __sFILE, depending on whether __LARGE64_FILES is set or not.
        * libc/reent/Makefile.am[HAVE_STDIO64_DIR]: Add new files.
        * libc/reent/Makefile.in: Regenerated.
        * libc/reent/fstat64r.c: New file.
        * libc/reent/lseek64r.c: Ditto.
        * libc/reent/open64r.c: Ditto.
        * libc/reent/reent.tex: Optionally add stdio64 reentrant syscalls
        based on whether STDIO64 flag is set.
        * libc/stdio/stdio.tex: Add blank line.
        * libc/stdio64/Makefile.am: New file.
        * libc/stdio64/Makefile.in: Ditto.
        * libc/stdio64/fgetpos64.c: Ditto.
        * libc/stdio64/fopen64.: Ditto.
        * libc/stdio64/freopen64.c: Ditto.
        * libc/stdio64/fseeko64.c: Ditto.
        * libc/stdio64/fsetpos64.c: Ditto.
        * libc/stdio64/ftello64.c: Ditto.
        * libc/stdio64/local64.h: Ditto.
        * libc/stdio64/stdio64.c: Ditto.
        * libc/stdio64/stdio64.tex: Ditto.
        * libc/stdio64/tmpfile64.c: Ditto.
        * libc/sys/linux/io64.c: Add weak aliases for lseek64, fstat64, and
        open64.

1 files changed, 169 insertions, 0 deletions

diff --git a/newlib/libc/stdio64/freopen64.c b/newlib/libc/stdio64/freopen64.c
new file mode 100644
index 000000000..53b8e3ee8
--- /dev/null
+++ b/newlib/libc/stdio64/freopen64.c
@@ -0,0 +1,169 @@
+#ifdef __LARGE64_FILES
+
+/*
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/*
+FUNCTION
+<<freopen64>>---open a large file using an existing file descriptor
+
+INDEX
+	freopen64
+
+ANSI_SYNOPSIS
+	#include <stdio.h>
+	FILE *freopen64(const char *<[file]>, const char *<[mode]>,
+		        FILE *<[fp]>);
+
+TRAD_SYNOPSIS
+	#include <stdio.h>
+	FILE *freopen64(<[file]>, <[mode]>, <[fp]>)
+	char *<[file]>;
+	char *<[mode]>;
+	FILE *<[fp]>;
+
+DESCRIPTION
+Use this variant of <<fopen64>> if you wish to specify a particular file
+descriptor <[fp]> (notably <<stdin>>, <<stdout>>, or <<stderr>>) for
+the file.
+
+If <[fp]> was associated with another file or stream, <<freopen64>>
+closes that other file or stream (but ignores any errors while closing
+it).
+
+<[file]> and <[mode]> are used just as in <<fopen>>.
+
+RETURNS
+If successful, the result is the same as the argument <[fp]>.  If the
+file cannot be opened as specified, the result is <<NULL>>.
+
+PORTABILITY
+<<freopen>> is a glibc extension.
+
+Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
+<<lseek64>>, <<open64>>, <<read>>, <<sbrk>>, <<write>>.
+*/
+
+#include <time.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include "local64.h"
+
+/*
+ * Re-direct an existing, open (probably) file to some other file.
+ */
+
+FILE *
+_DEFUN (freopen64, (file, mode, fp),
+	_CONST char *file _AND
+	_CONST char *mode _AND
+	register FILE *fp)
+{
+  register int f;
+  int flags, oflags, e;
+  struct _reent *ptr;
+
+  _flockfile(fp);
+
+  CHECK_INIT (fp);
+  ptr = fp->_data;
+
+  if ((flags = __sflags (ptr, mode, &oflags)) == 0)
+    {
+      (void) fclose (fp);
+      _funlockfile(fp);
+      return NULL;
+    }
+
+  /*
+   * Remember whether the stream was open to begin with, and
+   * which file descriptor (if any) was associated with it.
+   * If it was attached to a descriptor, defer closing it,
+   * so that, e.g., freopen("/dev/stdin", "r", stdin) works.
+   * This is unnecessary if it was not a Unix file.
+   */
+
+  if (fp->_flags == 0)
+    fp->_flags = __SEOF;	/* hold on to it */
+  else
+    {
+      if (fp->_flags & __SWR)
+	(void) fflush (fp);
+      /* if close is NULL, closing is a no-op, hence pointless */
+      if (fp->_close != NULL)
+	(void) (*fp->_close) (fp->_cookie);
+    }
+
+  /*
+   * Now get a new descriptor to refer to the new file.
+   */
+
+  f = _open64_r (ptr, (char *) file, oflags, 0666);
+  e = ptr->_errno;
+
+  /*
+   * Finish closing fp.  Even if the open succeeded above,
+   * we cannot keep fp->_base: it may be the wrong size.
+   * This loses the effect of any setbuffer calls,
+   * but stdio has always done this before.
+   */
+
+  if (fp->_flags & __SMBF)
+    _free_r (ptr, (char *) fp->_bf._base);
+  fp->_w = 0;
+  fp->_r = 0;
+  fp->_p = NULL;
+  fp->_bf._base = NULL;
+  fp->_bf._size = 0;
+  fp->_lbfsize = 0;
+  if (HASUB (fp))
+    FREEUB (fp);
+  fp->_ub._size = 0;
+  if (HASLB (fp))
+    FREELB (fp);
+  fp->_lb._size = 0;
+
+  if (f < 0)
+    {				/* did not get it after all */
+      fp->_flags = 0;		/* set it free */
+      ptr->_errno = e;		/* restore in case _close clobbered */
+      _funlockfile(fp);
+      return NULL;
+    }
+
+  fp->_flags = flags;
+  fp->_file = f;
+  fp->_cookie = (_PTR) fp;
+  fp->_read = __sread;
+  fp->_write = __swrite64;
+  fp->_seek = __sseek;
+  fp->_seek64 = __sseek64;
+  fp->_close = __sclose;
+
+#ifdef __SCLE
+  if (__stextmode(fp->_file))
+    fp->_flags |= __SCLE;
+#endif
+
+  fp->flags |= __SL64;
+
+  _funlockfile(fp);
+  return fp;
+}
+
+#endif /* __LARGE64_FILES */