43 lines
907 B
C
43 lines
907 B
C
/* write for MMIXware.
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Copyright (C) 2001 Hans-Peter Nilsson
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Permission to use, copy, modify, and distribute this software is
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freely granted, provided that the above copyright notice, this notice
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and the following disclaimer are preserved with no changes.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE. */
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#include <_ansi.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "sys/syscall.h"
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#include <errno.h>
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int
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_write ( int file,
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char *ptr,
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size_t len)
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{
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long ret;
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if ((unsigned int) file >= 32 || _MMIX_allocated_filehandle[file] == 0)
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{
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errno = EBADF;
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return -1;
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}
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ret = TRAP3f (SYS_Fwrite, file, ptr, len);
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if (ret < 0)
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{
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errno = EIO;
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return -1;
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}
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return len;
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}
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