EMILE/libext2/ext2_lseek.c
Laurent Vivier 9bd9755dbb Update email address
Signed-off-by: Laurent Vivier <Laurent@Vivier.EU>
2013-09-05 14:45:27 +02:00

38 lines
581 B
C

/*
*
* (c) 2008 Laurent Vivier <Laurent@Vivier.EU>
*
*/
#include "libext2.h"
#include "ext2.h"
int ext2_lseek(stream_FILE *_file, long offset, int whence)
{
ext2_FILE *file = (ext2_FILE*)_file;
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;
}