int sys_renameat(int old_fd, const char *old_path, int new_fd, const char *new_path) {
int old_kfd = at_kfd(old_fd);
int new_kfd = at_kfd(new_fd);
if(old_kfd != -1 && new_kfd != -1) {
size_t old_size = strlen(old_path)+1;
size_t new_size = strlen(new_path)+1;
return frontend_syscall(SYS_renameat, old_kfd, (uintptr_t)old_path, old_size,
new_kfd, (uintptr_t)new_path, new_size, 0);
}
return -EBADF;
}
long sys_linkat(int old_dirfd, const char* old_name, int new_dirfd, const char* new_name, int flags)
{
int old_kfd = at_kfd(old_dirfd);
int new_kfd = at_kfd(new_dirfd);
if (old_kfd != -1 && new_kfd != -1) {
size_t old_size = strlen(old_name)+1;
size_t new_size = strlen(new_name)+1;
return frontend_syscall(SYS_linkat, old_kfd, (uintptr_t)old_name, old_size,
new_kfd, (uintptr_t)new_name, new_size,
flags);
}
return -EBADF;
}
long sys_mkdirat(int dirfd, const char* name, int mode)
{
int kfd = at_kfd(dirfd);
if (kfd != -1) {
size_t name_size = strlen(name)+1;
return frontend_syscall(SYS_mkdirat, kfd, (uintptr_t)name, name_size, mode, 0, 0, 0);
}
return -EBADF;
}
long sys_unlinkat(int dirfd, const char* name, int flags)
{
int kfd = at_kfd(dirfd);
if (kfd != -1) {
size_t name_size = strlen(name)+1;
return frontend_syscall(SYS_unlinkat, kfd, (uintptr_t)name, name_size, flags, 0, 0, 0);
}
return -EBADF;
}
long sys_faccessat(int dirfd, const char *name, int mode)
{
int kfd = at_kfd(dirfd);
if (kfd != -1) {
size_t name_size = strlen(name)+1;
return frontend_syscall(SYS_faccessat, kfd, va2pa(name), name_size, mode, 0, 0, 0);
}
return -EBADF;
}
long sys_fstatat(int dirfd, const char* name, void* st, int flags)
{
int kfd = at_kfd(dirfd);
if (kfd != -1) {
struct frontend_stat buf;
size_t name_size = strlen(name)+1;
long ret = frontend_syscall(SYS_fstatat, kfd, (uintptr_t)name, name_size, (uintptr_t)&buf, flags, 0, 0);
copy_stat(st, &buf);
return ret;
}
return -EBADF;
}
int sys_openat(int dirfd, const char* name, int flags, int mode)
{
int kfd = at_kfd(dirfd);
if (kfd != -1) {
file_t* file = file_openat(kfd, name, flags, mode);
if (IS_ERR_VALUE(file))
return PTR_ERR(file);
int fd = file_dup(file);
if (fd < 0) {
file_decref(file);
return -ENOMEM;
}
return fd;
}
return -EBADF;
}
