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58 lines
1.0 KiB
C
58 lines
1.0 KiB
C
/**
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* @file
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*
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* @brief ioctl() system call
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* @ingroup libcsupport
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*/
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/*
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* This routine is not defined in the POSIX 1003.1b standard but is
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* commonly supported on most UNIX and POSIX systems.
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdarg.h>
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#include <rtems/libio_.h>
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#include <rtems/seterr.h>
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#include <unistd.h>
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int ioctl(
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int fd,
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ioctl_command_t command,
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...
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)
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{
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va_list ap;
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int rc;
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rtems_libio_t *iop;
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void *buffer;
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rtems_libio_check_fd( fd );
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iop = rtems_libio_iop( fd );
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rtems_libio_check_is_open(iop);
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va_start(ap, command);
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buffer = va_arg(ap, void *);
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/*
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* Now process the ioctl().
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*/
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rc = (*iop->pathinfo.handlers->ioctl_h)( iop, command, buffer );
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va_end( ap );
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return rc;
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}
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