diff options
| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/openbios/fs/ext2/ext2_lseek.c | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/openbios/fs/ext2/ext2_lseek.c')
| -rw-r--r-- | roms/openbios/fs/ext2/ext2_lseek.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/roms/openbios/fs/ext2/ext2_lseek.c b/roms/openbios/fs/ext2/ext2_lseek.c new file mode 100644 index 00000000..e837d89b --- /dev/null +++ b/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; +} |