lib/libc/posix/_sigaction.c

   1 #include <lib.h>
   2 #define sigaction _sigaction
   3 #include <signal.h>
   4
   5 _PROTOTYPE(int __sigreturn, (void));
   6
   7 PUBLIC int sigaction(sig, act, oact)
   8 int sig;
   9 _CONST struct sigaction *act;
  10 struct sigaction *oact;
  11 {
  12   message m;
  13
  14   m.m1_i2 = sig;
  15
  16   /* XXX - yet more type puns because message struct is short of types. */
  17   m.m1_p1 = (char *) act;
  18   m.m1_p2 = (char *) oact;
  19   m.m1_p3 = (char *) __sigreturn;
  20
  21   return(_syscall(MM, SIGACTION, &m));
  22 }