41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
72 lines
2 KiB
C
72 lines
2 KiB
C
/* Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
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On-Line Applications Research Corporation.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stddef.h>
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#include "filedesc.h"
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#include <fcntl.h>
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#include <standalone.h>
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/* Write NBYTES of BUF to FD. Return the number written, or -1. */
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ssize_t
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__libc_write (int fd, const void *buf, size_t nbytes)
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{
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int count;
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const char *data = buf;
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if (nbytes == 0)
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return 0;
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if ( !__FD_Is_valid( fd ) || !__FD_Table[ fd ].in_use )
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{
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__set_errno (EBADF);
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return -1;
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}
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if (buf == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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if ( !(__FD_Table[ fd ].flags & (O_WRONLY|O_RDWR)) ) /* is it writeable? */
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{
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__set_errno (EBADF);
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return -1;
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}
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/*
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* All open file descriptors are mapped to the console.
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*/
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for ( count=0 ; count != nbytes ; count++ ) {
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if ( _Console_Putc(data[ count ]) == -1 )
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return -1;
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if ( data[count] == '\n' && _Console_Putc('\r') == -1 )
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return -1;
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}
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return count;
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}
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weak_alias (__libc_write, __write)
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weak_alias (__libc_write, write)
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