forked from Imagelibrary/rtems
75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/**
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* @file
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*
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* A test support function which performs a write() and
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* handles implied open(), lseek(), write(), and close() operations.
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*/
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/*
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* COPYRIGHT (c) 1989-2012.
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <pmacros.h>
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/* forward declarations to avoid warnings */
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void test_write(char *file, off_t offset, char *buffer);
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/*
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* test_write routine
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*/
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void test_write(
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char *file,
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off_t offset,
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char *buffer
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)
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{
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int fd;
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int status;
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int length;
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length = strlen( buffer );
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fd = open( file, O_WRONLY );
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if ( fd == -1 ) {
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printf( "test_write: open( %s ) failed : %s\n", file, strerror( errno ) );
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rtems_test_exit( 0 );
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}
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status = lseek( fd, offset, SEEK_SET );
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rtems_test_assert( status != -1 );
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status = write( fd, buffer, length );
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if ( status == -1 ) {
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printf( "test_write: write( %s ) failed : %s\n", file, strerror( errno ) );
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rtems_test_exit( 0 );
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}
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if ( status != length ) {
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printf( "test_write: write( %s ) only wrote %d of %d bytes\n",
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file, status, length );
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rtems_test_exit( 0 );
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}
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status = close( fd );
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rtems_test_assert( !status );
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}
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