static void
do_mknod (vfs_task_t *client, vfsmsg_t *msg) {
int dev;
int ino;
int dir_ino;
char *n;
n = msg->mknod.name;
/* Find the directory node */
dir_ino = vfs_get_dir(client, &dev, msg->mknod.name);
if (dir_ino < 0) {
msg->mknod.ino = -1;
return;
}
/* Create new node on device */
sendrec(devtab[dev], msg, sizeof(vfsmsg_t));
ino = msg->mknod.ino;
/* Link the node */
msg->cmd = VFS_LINK;
msg->link.name = n;
msg->link.ino = ino;
msg->link.dir_ino = dir_ino;
sendrec(devtab[dev], msg, sizeof(vfsmsg_t));
if (msg->link.ino < 0) {
msg->mknod.ino = -1;
return; /* Cannot get node */
}
msg->mknod.ino = ino;
return;
}
fs_node_t* vfs_mkdir(fs_node_t* node, char* name){
fs_node_t* dir = vfs_get_dir(node, name);
if(dir == NULL){
vga_puts("vfs_mkdir(): invalid path\n");
return NULL;
}
fs_node_t* file = mk_empty_dnode();
strmov(file->name, basename(name));
file->link = dir->holds;
dir->holds = file;
return file;
}
int
vfs_get_node (vfs_task_t *client, int *dev, char* path) {
int ino;
char *bn;
int len;
ino = vfs_get_dir(client, dev, path);
if (ino < 0) {
return -1;
}
bn = basename(path, &len);
if (len > 0) {
ino = vfs_get_direntry(dev, ino, bn, len);
}
return ino;
}
fs_node_t* vfs_touch(fs_node_t* node, char* name){
fs_node_t* dir = vfs_get_dir(node, name);
if(dir == NULL)
return NULL;
fs_node_t* file = mk_empty_fnode();
strmov(file->name, basename(name));
fat_dir_t* entry = df_new_file();
if(entry == NULL)
PANIC("kernel attempted to overwrite file in FAT");
int i;
for(i = 0; i < 11; i++){
file->dos_name[i] = entry->name[i];
}
file->link = dir->holds;
dir->holds = file;
return file;
}