/* VFS stubs */
#include "../kernel.h"
u32 vfs_list(u32 start, void* buf, u32 maxlen) {
    char* out = (char*)buf; u32 w = 0;
    const char* known[] = {"/","/hello","/etc","/bin","/dev","/home","/tmp",NULL};
    for(int i=0; known[i]; i++) {
        u32 fd = vfs_open(known[i], 0);
        if(fd) {
            u32 len = 0; while(known[i][len]) len++;
            if(w + len + 1 < maxlen) {
                for(u32 j=0; j<len && w<maxlen; j++) out[w++] = known[i][j];
                out[w++] = '\n';
            }
            vfs_close(fd);
        }
    }
    return w;
}