From dee51391315e2bb819409a6b3eb23ee6ef6d3c59 Mon Sep 17 00:00:00 2001
From: Jeff Johnston <jjohnstn@redhat.com>
Date: Wed, 17 Jul 2002 23:25:44 +0000
Subject: 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.
---
 newlib/libc/stdio64/fgetpos64.c | 66 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 newlib/libc/stdio64/fgetpos64.c

(limited to 'newlib/libc/stdio64/fgetpos64.c')

diff --git a/newlib/libc/stdio64/fgetpos64.c b/newlib/libc/stdio64/fgetpos64.c
new file mode 100644
index 000000000..055d53655
--- /dev/null
+++ b/newlib/libc/stdio64/fgetpos64.c
@@ -0,0 +1,66 @@
+#ifdef __LARGE64_FILES
+
+/*
+FUNCTION
+<<fgetpos64>>---record position in a large stream or file
+
+INDEX
+	fgetpos64
+
+ANSI_SYNOPSIS
+	#include <stdio.h>
+	int fgetpos64(FILE *<[fp]>, _fpos64_t *<[pos]>);
+
+TRAD_SYNOPSIS
+	#include <stdio.h>
+	int fgetpos64(<[fp]>, <[pos]>)
+	FILE *<[fp]>;
+	_fpos64_t *<[pos]>;
+
+DESCRIPTION
+Objects of type <<FILE>> can have a ``position'' that records how much
+of the file your program has already read.  Many of the <<stdio>> functions
+depend on this position, and many change it as a side effect.
+
+You can use <<fgetpos64>> to report on the current position for a file
+identified by <[fp]> that was opened by <<fopen64>>; <<fgetpos>> will write 
+a value representing that position at <<*<[pos]>>>.  Later, you can
+use this value with <<fsetpos64>> to return the file to this
+position.
+
+In the current implementation, <<fgetpos64>> simply uses a character
+count to represent the file position; this is the same number that
+would be returned by <<ftello64>>.
+
+RETURNS
+<<fgetpos64>> returns <<0>> when successful.  If <<fgetpos64>> fails, the
+result is <<1>>.  Failure occurs on streams that do not support
+positioning or streams not opened via <<fopen64>>; the global <<errno>> 
+indicates these conditions with the value <<ESPIPE>>.
+
+PORTABILITY
+<<fgetpos64>> is a glibc extension.
+
+No supporting OS subroutines are required.
+*/
+
+#include <stdio.h>
+
+int
+_DEFUN (fgetpos64, (fp, pos),
+	FILE * fp _AND
+	_fpos64_t * pos)
+{
+  _flockfile(fp);
+  *pos = (_fpos64_t)ftello64 (fp);
+
+  if (*pos != -1)
+    {
+      _funlockfile(fp);
+      return 0;
+    }
+  _funlockfile(fp);
+  return 1;
+}
+
+#endif /* __LARGE64_FILES */
-- 
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