1*433d6423SLionel Sambuc /* The kernel call that is implemented in this file: 2*433d6423SLionel Sambuc * m_type: SYS_KILL 3*433d6423SLionel Sambuc * 4*433d6423SLionel Sambuc * The parameters for this kernel call are: 5*433d6423SLionel Sambuc * m_sigcalls.endpt # process to signal/ pending 6*433d6423SLionel Sambuc * m_sigcalls.sig # signal number to send to process 7*433d6423SLionel Sambuc */ 8*433d6423SLionel Sambuc 9*433d6423SLionel Sambuc #include "kernel/system.h" 10*433d6423SLionel Sambuc #include <signal.h> 11*433d6423SLionel Sambuc 12*433d6423SLionel Sambuc #if USE_KILL 13*433d6423SLionel Sambuc 14*433d6423SLionel Sambuc /*===========================================================================* 15*433d6423SLionel Sambuc * do_kill * 16*433d6423SLionel Sambuc *===========================================================================*/ do_kill(struct proc * caller,message * m_ptr)17*433d6423SLionel Sambucint do_kill(struct proc * caller, message * m_ptr) 18*433d6423SLionel Sambuc { 19*433d6423SLionel Sambuc /* Handle sys_kill(). Cause a signal to be sent to a process. Any request 20*433d6423SLionel Sambuc * is added to the map of pending signals and the signal manager 21*433d6423SLionel Sambuc * associated to the process is informed about the new signal. The signal 22*433d6423SLionel Sambuc * is then delivered using POSIX signal handlers for user processes, or 23*433d6423SLionel Sambuc * translated into an IPC message for system services. 24*433d6423SLionel Sambuc */ 25*433d6423SLionel Sambuc proc_nr_t proc_nr, proc_nr_e; 26*433d6423SLionel Sambuc int sig_nr = m_ptr->m_sigcalls.sig; 27*433d6423SLionel Sambuc 28*433d6423SLionel Sambuc proc_nr_e = (proc_nr_t)m_ptr->m_sigcalls.endpt; 29*433d6423SLionel Sambuc 30*433d6423SLionel Sambuc if (!isokendpt(proc_nr_e, &proc_nr)) return(EINVAL); 31*433d6423SLionel Sambuc if (sig_nr >= _NSIG) return(EINVAL); 32*433d6423SLionel Sambuc if (iskerneln(proc_nr)) return(EPERM); 33*433d6423SLionel Sambuc 34*433d6423SLionel Sambuc /* Set pending signal to be processed by the signal manager. */ 35*433d6423SLionel Sambuc cause_sig(proc_nr, sig_nr); 36*433d6423SLionel Sambuc 37*433d6423SLionel Sambuc return(OK); 38*433d6423SLionel Sambuc } 39*433d6423SLionel Sambuc 40*433d6423SLionel Sambuc #endif /* USE_KILL */ 41*433d6423SLionel Sambuc 42