39 lines
612 B
C
39 lines
612 B
C
![]() |
/*
|
||
|
*
|
||
|
* (c) 2008-2009 Laurent Vivier <Laurent@lvivier.info>
|
||
|
*
|
||
|
* This file has been copied from EMILE, http://emile.sf.net
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
#include "libext2.h"
|
||
|
#include "ext2.h"
|
||
|
|
||
|
int ext2_lseek(ext2_FILE *file, long offset, int whence)
|
||
|
{
|
||
|
long new_offset;
|
||
|
|
||
|
switch(whence)
|
||
|
{
|
||
|
case SEEK_SET:
|
||
|
new_offset = offset;
|
||
|
break;
|
||
|
case SEEK_CUR:
|
||
|
new_offset = file->offset + offset;
|
||
|
break;
|
||
|
case SEEK_END:
|
||
|
new_offset = file->inode->i_size + offset;
|
||
|
break;
|
||
|
default:
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if ( (new_offset < 0) ||
|
||
|
(new_offset > file->inode->i_size) )
|
||
|
return -1;
|
||
|
|
||
|
file->offset = new_offset;
|
||
|
|
||
|
return new_offset;
|
||
|
}
|