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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [tests/] [psxtests/] [psxfile01/] [test_extend.c] - Blame information for rev 173

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Line No. Rev Author Line
1 30 unneback
/*
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 *  A test support function which extends the file to the specified
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 *  length.  This handles the implied open(), lseek(), write(), and close()
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 *  operations.
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 *
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 *  The defined behavior is a seek() followed by a write() extends the file
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 *  and zero fills the new length part.
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 *
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 *  $Id: test_extend.c,v 1.2 2001-09-27 12:02:25 chris Exp $
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 */
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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 <ctype.h>
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#include <assert.h>
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/*
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 *  test_extend routine
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 */
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void test_extend(
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  char   *file,
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  off_t  offset
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)
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{
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  int   fd;
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  int   status;
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  char  c = 0;
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  fd = open( file, O_WRONLY );
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  if ( fd == -1 ) {
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    printf( "test_extend: open( %s ) failed : %s\n", file, strerror( errno ) );
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    exit( 0 );
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  }
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  status = lseek( fd, offset - 1, SEEK_SET );
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  assert( status != -1 );
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  status = write( fd, &c, 1 );
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  if ( status == -1 ) {
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    printf( "test_extend: write( %s ) failed : %s\n", file, strerror( errno ) );
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    exit( 0 );
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  }
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  if ( status != 1 ) {
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    printf( "test_extend: write( %s ) only wrote %d of %d bytes\n",
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            file, status, 1 );
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    exit( 0 );
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  }
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  status = close( fd );
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  assert( !status );
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}

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