60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* Copyright (c) 2013 Red Hat, Inc. All rights reserved.
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This copyrighted material is made available to anyone wishing to use, modify,
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copy, or redistribute it subject to the terms and conditions of the BSD
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License. This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY expressed or implied, including the implied warranties
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy of this license
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is available at http://www.opensource.org/licenses. Any Red Hat trademarks that
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are incorporated in the source code or documentation are not subject to the BSD
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License and may only be used or replicated with the express permission of
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Red Hat, Inc.
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*/
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#include <string.h>
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#include "cio.h"
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static int
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write_chunk (int fd, char *buf, int len)
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{
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__CIOBUF__.length[0] = len;
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__CIOBUF__.length[1] = len >> 8;
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__CIOBUF__.parms[0] = CIO_WRITE;
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__CIOBUF__.parms[1] = fd;
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__CIOBUF__.parms[2] = fd >> 8;
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__CIOBUF__.parms[3] = len;
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__CIOBUF__.parms[4] = len >> 8;
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memcpy (__CIOBUF__.buf, buf, len);
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_libgloss_cio_hook ();
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return __CIOBUF__.parms[0] + __CIOBUF__.parms[1] * 256;
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}
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#include <stdio.h>
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int
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write (int fd, char *buf, int len)
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{
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int rv = 0;
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int c;
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#if 0
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if (fd == 2)
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fprintf (stderr, "%.*s", buf, len);
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else if (fd == 1)
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printf ("%.*s", buf, len);
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#endif
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while (len > 0)
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{
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int l = (len > CIO_BUF_SIZE) ? CIO_BUF_SIZE : len;
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c = write_chunk (fd, buf, l);
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if (c < 0)
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return c;
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rv += l;
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len -= l;
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buf += l;
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}
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return c;
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}
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