glibc/sysdeps/stub/sysd-stdio.c

117 lines
2.9 KiB
C

/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <errno.h>
#include <stdio.h>
/* Read up to N chars into BUF from COOKIE.
Return how many chars were read, 0 for EOF or -1 for error. */
int
__stdio_read (cookie, buf, n)
void *cookie;
register char *buf;
register size_t n;
{
__set_errno (ENOSYS);
return -1;
}
/* Write up to N chars from BUF to COOKIE.
Return how many chars were written or -1 for error. */
int
__stdio_write (cookie, buf, n)
void *cookie;
register const char *buf;
register size_t n;
{
__set_errno (ENOSYS);
return -1;
}
/* Move COOKIE's file position *POS bytes, according to WHENCE.
The new file position is stored in *POS.
Returns zero if successful, nonzero if not. */
int
__stdio_seek (cookie, pos, whence)
void *cookie;
fpos_t *pos;
int whence;
{
__set_errno (ENOSYS);
return -1;
}
/* Close the file associated with COOKIE.
Return 0 for success or -1 for failure. */
int
__stdio_close (cookie)
void *cookie;
{
__set_errno (ENOSYS);
return -1;
}
/* Return the POSIX.1 file descriptor associated with COOKIE,
or -1 for errors. If COOKIE does not relate to any POSIX.1 file
descriptor, this should return -1 with errno set to EOPNOTSUPP. */
int
__stdio_fileno (cookie)
void *cookie;
{
__set_errno (ENOSYS);
return -1;
}
/* Open FILENAME with the mode in M.
Store the magic cookie associated with the opened file in *COOKIEPTR.
Return zero on success and nonzero on failure. */
int
__stdio_open (filename, m, cookieptr)
const char *filename;
__io_mode m;
void **cookieptr;
{
__set_errno (ENOSYS);
return -1;
}
/* Open FILENAME with the mode in M. Use the same magic cookie
already in *COOKIEPTR if possible, closing the old cookie with CLOSEFN. */
int
__stdio_reopen (filename, m, cookieptr)
const char *filename;
__io_mode m;
void **cookieptr;
__io_close_fn closefn;
{
__set_errno (ENOSYS);
return -1;
}
stub_warning (__stdio_read)
stub_warning (__stdio_write)
stub_warning (__stdio_seek)
stub_warning (__stdio_close)
stub_warning (__stdio_fileno)
stub_warning (__stdio_open)
stub_warning (__stdio_reopen)