1 #include <stdlib.h>
2 #include <sys/types.h>
3 #include <unistd.h>
4 #include <signal.h>
5 #include <ctype.h>
6 #include <stdio.h>
7 #include <string.h>
8
9 #define NSIG SIGUSR2
10
11 char *signm[NSIG+1] = { 0,
12 "SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGABRT", "SIGFPE", "SIGKILL", /* 1-7 */
13 "SIGSEGV", "SIGPIPE", "SIGALRM", "SIGTERM", "SIGUR1", "SIGUSR2", /* 8-13 */
14 };
15
main(int argc,char ** argv)16 main(int argc, char **argv)
17 {
18 int signo, pid, res;
19 int errlev;
20
21 errlev = 0;
22 if (argc <= 1) {
23 usage:
24 fprintf(stderr, "usage: kill [ -sig ] pid ...\n");
25 fprintf(stderr, "for a list of signals: kill -l\n");
26 exit(2);
27 }
28 if (*argv[1] == '-') {
29 if (argv[1][1] == 'l') {
30 int i = 0;
31 for (signo = 1; signo <= NSIG; signo++)
32 if (signm[signo]) {
33 printf("%s ", signm[signo]);
34 if (++i%8 == 0)
35 printf("\n");
36 }
37 if(i%8 !=0)
38 printf("\n");
39 exit(0);
40 } else if (isdigit(argv[1][1])) {
41 signo = atoi(argv[1]+1);
42 if (signo < 0 || signo > NSIG) {
43 fprintf(stderr, "kill: %s: number out of range\n",
44 argv[1]);
45 exit(1);
46 }
47 } else {
48 char *name = argv[1]+1;
49 for (signo = 1; signo <= NSIG; signo++)
50 if (signm[signo] && (
51 !strcmp(signm[signo], name)||
52 !strcmp(signm[signo]+3, name)))
53 goto foundsig;
54 fprintf(stderr, "kill: %s: unknown signal; kill -l lists signals\n", name);
55 exit(1);
56 foundsig:
57 ;
58 }
59 argc--;
60 argv++;
61 } else
62 signo = SIGTERM;
63 argv++;
64 while (argc > 1) {
65 if ((**argv<'0' || **argv>'9') && **argv!='-')
66 goto usage;
67 res = kill(pid = atoi(*argv), signo);
68 if (res<0) {
69 perror("kill");
70 }
71 argc--;
72 argv++;
73 }
74 return(errlev);
75 }
76