1 #include <u.h>
2 #define NOPLAN9DEFINES
3 #include <libc.h>
4 
5 #include <signal.h>
6 
7 
8 extern int _p9strsig(char*);
9 
10 int
11 postnote(int who, int pid, char *msg)
12 {
13 	int sig;
14 
15 	sig = _p9strsig(msg);
16 	if(sig == 0){
17 		werrstr("unknown note");
18 		return -1;
19 	}
20 
21 	switch(who){
22 	default:
23 		werrstr("bad who in postnote");
24 		return -1;
25 	case PNPROC:
26 		return kill(pid, sig);
27 	case PNGROUP:
28 		if((pid = getpgid(pid)) < 0)
29 			return -1;
30 		return killpg(pid, sig);
31 	}
32 }
33 
34