X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fmake_ext4fs.git;a=blobdiff_plain;f=contents.c;h=bfdb657528712f52e14c85ee1074a8c5d64010fa;hp=3144de93f4de1ae8f84f3ab2df625ed099ac33e6;hb=af498dbd68b9b1e51b8c8ec1ff07f4def0ee5504;hpb=fb5c011b4912fb14cfa87a06a5542c06aecc9278 diff --git a/contents.c b/contents.c index 3144de9..bfdb657 100644 --- a/contents.c +++ b/contents.c @@ -244,6 +244,40 @@ u32 make_link(const char *link) return inode_num; } +/* Creates a special file on disk. Returns the inode number of the new file */ +u32 make_special(const char *path) +{ + struct ext4_inode *inode; + struct stat s; + u32 inode_num; + + if (stat(path, &s)) { + error("failed to stat file\n"); + return EXT4_ALLOCATE_FAILED; + } + + inode_num = allocate_inode(info); + if (inode_num == EXT4_ALLOCATE_FAILED) { + error("failed to allocate inode\n"); + return EXT4_ALLOCATE_FAILED; + } + + inode = get_inode(inode_num); + if (inode == NULL) { + error("failed to get inode %u", inode_num); + return EXT4_ALLOCATE_FAILED; + } + + inode->i_mode = s.st_mode & S_IFMT; + inode->i_links_count = 1; + inode->i_flags |= aux_info.default_i_flags; + + ((u8 *)inode->i_block)[0] = major(s.st_rdev); + ((u8 *)inode->i_block)[1] = minor(s.st_rdev); + + return inode_num; +} + int inode_set_permissions(u32 inode_num, u16 mode, u16 uid, u16 gid, u32 mtime) { struct ext4_inode *inode = get_inode(inode_num);