static int __wind_task_nametoid(struct task_struct *curr, struct pt_regs *regs)
{
char name[XNOBJECT_NAME_LEN];
WIND_TCB_PLACEHOLDER ph;
xnhandle_t handle;
if (!__xn_access_ok
(curr, VERIFY_WRITE, __xn_reg_arg2(regs), sizeof(ph)))
return -EFAULT;
if (!__xn_reg_arg1(regs))
return S_taskLib_NAME_NOT_FOUND;
if (!__xn_access_ok
(curr, VERIFY_READ, __xn_reg_arg1(regs), sizeof(name)))
return -EFAULT;
__xn_strncpy_from_user(curr, name,
(const char __user *)__xn_reg_arg1(regs),
sizeof(name) - 1);
name[sizeof(name) - 1] = '\0';
handle = taskNameToHandle(name);
if (handle == XN_NO_HANDLE)
return wind_errnoget();
ph.handle = handle; /* Copy back the task handle. */
__xn_copy_to_user(curr, (void __user *)__xn_reg_arg2(regs), &ph,
sizeof(ph));
return 0;
}
static int __wind_task_nametoid(struct pt_regs *regs)
{
char name[XNOBJECT_NAME_LEN];
WIND_TCB_PLACEHOLDER ph;
xnhandle_t handle;
if (!__xn_reg_arg1(regs))
return S_taskLib_NAME_NOT_FOUND;
if (__xn_safe_strncpy_from_user(name,
(const char __user *)__xn_reg_arg1(regs),
sizeof(name) - 1) < 0)
return -EFAULT;
name[sizeof(name) - 1] = '\0';
handle = taskNameToHandle(name);
if (handle == XN_NO_HANDLE)
return wind_errnoget();
ph.handle = handle; /* Copy back the task handle. */
return __xn_safe_copy_to_user((void __user *)__xn_reg_arg2(regs), &ph, sizeof(ph));
}