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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [write.c] - Rev 596
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/* * write() - POSIX 1003.1b 6.4.2 - Write to a File * * COPYRIGHT (c) 1989-1999. * On-Line Applications Research Corporation (OAR). * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.OARcorp.com/rtems/license.html. * * $Id: write.c,v 1.2 2001-09-27 12:01:15 chris Exp $ */ #include "libio_.h" /* * write * * This routine writes count bytes from from buffer pointed to by buffer * to the file associated with the open file descriptor, fildes. */ ssize_t write( int fd, const void *buffer, size_t count ) { rtems_status_code rc; rtems_libio_t *iop; rtems_libio_check_fd( fd ); iop = rtems_libio_iop( fd ); rtems_libio_check_is_open(iop); rtems_libio_check_buffer( buffer ); rtems_libio_check_count( count ); rtems_libio_check_permissions( iop, LIBIO_FLAGS_WRITE ); /* * Now process the write() request. */ if ( !iop->handlers->write ) set_errno_and_return_minus_one( ENOTSUP ); rc = (*iop->handlers->write)( iop, buffer, count ); if ( rc > 0 ) iop->offset += rc; return rc; } /* * _write_r * * This is the Newlib dependent reentrant version of write(). */ #if defined(RTEMS_NEWLIB) #include <reent.h> long _write_r( struct _reent *ptr, int fd, const void *buf, size_t nbytes ) { return write( fd, buf, nbytes ); } #endif
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