44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* close.c -- close a file descriptor.
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*
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* Copyright (c) 1995 Cygnus Support
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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#include <errno.h>
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#include <stdlib.h>
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#include <sys/unistd.h>
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#include <sys/kos_io.h>
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#include "glue.h"
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#include "io.h"
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int
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_DEFUN (close ,(fd),
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int fd)
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{
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__io_handle *ioh;
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if( (fd < 0) || (fd >=64) )
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{
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errno = EBADF;
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return (-1);
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};
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ioh = &__io_tab[fd];
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if( fd > STDERR_FILENO )
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{
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free(ioh->name);
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__io_free(fd);
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}
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return (0);
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}
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