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-rw-r--r--newlib/libc/stdio64/fopen64.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/newlib/libc/stdio64/fopen64.c b/newlib/libc/stdio64/fopen64.c
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+++ 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 */