diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/openbios/fs/ext2/ext2_lseek.c | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/openbios/fs/ext2/ext2_lseek.c')
| -rw-r--r-- | qemu/roms/openbios/fs/ext2/ext2_lseek.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/qemu/roms/openbios/fs/ext2/ext2_lseek.c b/qemu/roms/openbios/fs/ext2/ext2_lseek.c new file mode 100644 index 000000000..e837d89b4 --- /dev/null +++ b/qemu/roms/openbios/fs/ext2/ext2_lseek.c @@ -0,0 +1,38 @@ +/* + * + * (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; +} |