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author | Jeff Johnston <jjohnstn@redhat.com> | 2002-07-17 23:25:44 +0000 |
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committer | Jeff Johnston <jjohnstn@redhat.com> | 2002-07-17 23:25:44 +0000 |
commit | dee51391315e2bb819409a6b3eb23ee6ef6d3c59 (patch) | |
tree | 17c5dc4dd302a05142ab357c745e37305c6b04ea /newlib/libc/stdio64/fopen64.c | |
parent | 30a431abf19a11923e53050fc94619e8705d4e50 (diff) | |
download | cygnal-dee51391315e2bb819409a6b3eb23ee6ef6d3c59.tar.gz cygnal-dee51391315e2bb819409a6b3eb23ee6ef6d3c59.tar.bz2 cygnal-dee51391315e2bb819409a6b3eb23ee6ef6d3c59.zip |
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.
Diffstat (limited to 'newlib/libc/stdio64/fopen64.c')
-rw-r--r-- | newlib/libc/stdio64/fopen64.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/newlib/libc/stdio64/fopen64.c b/newlib/libc/stdio64/fopen64.c new file mode 100644 index 000000000..58ea1459c --- /dev/null +++ b/newlib/libc/stdio64/fopen64.c @@ -0,0 +1,131 @@ +#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 +<<fopen64>>---open a large file + +INDEX + fopen64 +INDEX + _fopen64_r + +ANSI_SYNOPSIS + #include <stdio.h> + FILE *fopen64(const char *<[file]>, const char *<[mode]>); + FILE *_fopen64_r(void *<[reent]>, + const char *<[file]>, const char *<[mode]>); + +TRAD_SYNOPSIS + #include <stdio.h> + FILE *fopen64(<[file]>, <[mode]>) + char *<[file]>; + char *<[mode]>; + + FILE *_fopen64_r(<[reent]>, <[file]>, <[mode]>) + char *<[reent]>; + char *<[file]>; + char *<[mode]>; + +DESCRIPTION +<<fopen64>> is identical to <<fopen>> except it opens a large file that +is potentially >2GB in size. See <<fopen>> for further details. + +RETURNS +<<fopen64>> return a file pointer which you can use for other file +operations, unless the file you requested could not be opened; in that +situation, the result is <<NULL>>. If the reason for failure was an +invalid string at <[mode]>, <<errno>> is set to <<EINVAL>>. + +PORTABILITY +<<fopen64>> is a glibc extension. + +Supporting OS subroutines required: <<close>>, <<fstat64>>, <<isatty>>, +<<lseek64>>, <<open64>>, <<read>>, <<sbrk>>, <<write>>. +*/ + +/* Copied from fopen.c */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "%W% (Berkeley) %G%"; +#endif /* LIBC_SCCS and not lint */ + +#include <stdio.h> +#include <errno.h> +#include "local64.h" +#ifdef __CYGWIN__ +#include <fcntl.h> +#endif + +FILE * +_DEFUN (_fopen64_r, (ptr, file, mode), + struct _reent *ptr _AND + _CONST char *file _AND + _CONST char *mode) +{ + register FILE *fp; + register int f; + int flags, oflags; + + if ((flags = __sflags (ptr, mode, &oflags)) == 0) + return NULL; + if ((fp = __sfp (ptr)) == NULL) + return NULL; + + if ((f = _open64_r (fp->_data, file, oflags, 0666)) < 0) + { + fp->_flags = 0; /* release */ + return NULL; + } + + fp->_file = f; + fp->_flags = flags; + fp->_cookie = (_PTR) fp; + fp->_read = __sread; + fp->_write = __swrite64; + fp->_seek = __sseek; + fp->_seek64 = __sseek64; + fp->_close = __sclose; + + if (fp->_flags & __SAPP) + fseeko64 (fp, 0, SEEK_END); + +#ifdef __SCLE + if (__stextmode (fp->_file)) + fp->_flags |= __SCLE; +#endif + + fp->_flags |= __SL64; + + return fp; +} + +#ifndef _REENT_ONLY + +FILE * +_DEFUN (fopen64, (file, mode), + _CONST char *file _AND + _CONST char *mode) +{ + return _fopen64_r (_REENT, file, mode); +} + +#endif + +#endif /* __LARGE64_FILES */ |