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48 lines
934 B
C
48 lines
934 B
C
/**
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* @file
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*
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* @brief Change File Modes
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* @ingroup libcsupport
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*/
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/*
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* COPYRIGHT (c) 1989-2011.
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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.com/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 <sys/stat.h>
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#include <rtems/libio_.h>
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/**
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* POSIX 1003.1b 5.6.4 - Change File Modes
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*/
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int fchmod( int fd, mode_t mode )
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{
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int rv;
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rtems_libio_t *iop;
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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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if (iop->pathinfo.mt_entry->writeable) {
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rtems_filesystem_instance_lock( &iop->pathinfo );
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rv = (*iop->pathinfo.mt_entry->ops->fchmod_h)( &iop->pathinfo, mode );
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rtems_filesystem_instance_unlock( &iop->pathinfo );
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} else {
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errno = EROFS;
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rv = -1;
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}
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return rv;
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}
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