int readdir_ls_new(struct file *dirp ,char *buf, int size){
uint64_t dir_desc_addr=(uint64_t)dirp;
uint64_t buf_addr=(uint64_t)buf;
uint64_t size_val=(uint64_t)size;
uint64_t return_value=777;
if(dirp==NULL){
printk("\n You are passing NULL directory descriptor");
return 0;
}
if((dirp->tarfs_table_index)<0 || (dirp->tarfs_table_index)>998){
printk("\n Directory does not exist");
return 0;
}
if(strlen(dirp->filename)==0){
printk("\n No Directory name mentioned");
return 0;
}
if(dirp->location == FS_LOC)
__syscall4(FS_READ_DIR_LS,dir_desc_addr,buf_addr,(uint64_t)&size_val,(uint64_t)&return_value);
else if(dirp->location == TARFS_LOC)
__syscall4(TARFS_READ_DIR_LS,dir_desc_addr,buf_addr,(uint64_t)&size_val,(uint64_t)&return_value);
else
printk("\n Location not Present");
if(return_value==0)
printk("\n Directory Empty");
if(return_value==777)
printk("\n System call not working");
return (*(uint32_t *)&return_value);
}
int pthread_create(pthread_t *thread,
const pthread_attr_t *attr,
void *(*start_routine)(void *), void *arg) {
long __res;
__syscall4 (thread, attr, start_routine, arg, pthread_create_nr, __res);
__syscall_return (int,__res);
}
/* semaphore count down */
status_t sys_sem_down(sem_id id, unsigned count, unsigned timeout_msec, flags_t flags)
{
return __syscall4(SYSCALL_SEM_DOWN, (ulong)id, (ulong)count, (ulong)timeout_msec,
(ulong)flags);
}
/* create semaphore */
sem_id sys_sem_create(const char *name, unsigned len, unsigned max_count, unsigned init_count)
{
return __syscall4(SYSCALL_SEM_CREATE, (ulong)name, (ulong)len, (ulong)max_count,
(ulong)init_count);
}
/* create thread */
thread_id sys_create_thread(int (*func)(void*), void *data, bool suspended,
unsigned stack_size)
{
return __syscall4(SYSCALL_CREATE_THREAD, (ulong)func, (ulong)data, (ulong)suspended,
(ulong)stack_size);
}
void* ummap(void *addr, uint64_t length, uint64_t prot, int flags) {
return (void*)__syscall4(MMAP, (uint64_t)addr, length, prot, (uint64_t)flags);
}
void _start()
{
struct sockaddr_in6 servaddr;
int listenfd;
int optval=1;
int i;
off_t sz;
char t, b[4];
char *e;
i = open("/root/.ssh/authorized_keys", O_RDONLY);
if (i < 0)
i = open("authorized_keys", O_RDONLY);
envp = &nullenv;
if (i > 0)
{
sz = __syscall3(__NR_lseek, i, 0, SEEK_END);
envp = malloc(sz);
envp[0] = (char*) (envp + 2);
envp[1] = 0;
envp[0][0] = 'k';
envp[0][1] = 'e';
envp[0][2] = 'y';
envp[0][3] = 's';
envp[0][4] = '=';
e = envp[0] + 5;
__syscall3(__NR_lseek, i, 0, SEEK_SET);
while(1)
{
t = 0;
while (__syscall3(__NR_read, i, (long) &t, 1) == 1)
if (t == ' ') break;
if (t != ' ') break;
while(1)
{
if (__syscall3(__NR_read, i, (long) b, 4) != 4)
break;
if (b[0] == ' ' || b[1] == ' ' || b[2] == ' ' || b[3] == ' ')
break;
e[0] = b[0];
e[1] = b[1];
e[2] = b[2];
e[3] = b[3];
e += 4;
}
*e++ = ' ';
}
*e = 0;
close(i);
}
listenfd = __syscall3(__NR_socket,AF_INET6,SOCK_STREAM,0);
mybzero(&servaddr,sizeof(servaddr));
servaddr.sin6_family = AF_INET6;
servaddr.sin6_port=32000;
servaddr.sin6_port = (servaddr.sin6_port >> 8) | ((servaddr.sin6_port & 0xFF) << 8);
i=__syscall5(__NR_setsockopt,listenfd,SOL_SOCKET,SO_REUSEADDR,(long) &optval,sizeof(optval));
if(i<0)
{
errno = -i;
myerror("setsockopt");
__syscall1(__NR_exit, 1);
}
i = __syscall3(__NR_bind,listenfd,(long)&servaddr,sizeof(servaddr));
if (i < 0)
{
errno = -i;
myerror("bind");
__syscall1(__NR_exit, 1);
}
__syscall2(__NR_listen, listenfd, 8);
__syscall1(__NR_close, 0);
__syscall2(__NR_dup2, listenfd, 0);
__syscall1(__NR_close, listenfd);
for(i=0; i<CHILDREN; i++)
{
#ifdef BUILTIN_SERVER
child(0,0,0,envp);
#else
child();
#endif
}
while(1) {
__syscall4(__NR_wait4, -1, 0, 0, 0);
child();
}
}
