| 1 | static char *sccsid = "@(#)kill.c 4.2 (Berkeley) %G%"; |
| 2 | /* |
| 3 | * kill - send signal to process |
| 4 | */ |
| 5 | |
| 6 | #include <signal.h> |
| 7 | #include <ctype.h> |
| 8 | |
| 9 | char *signm[] = { 0, |
| 10 | "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", "EMT", "FPE", /* 1-8 */ |
| 11 | "KILL", "BUS", "SEGV", "SYS", "PIPE", "ALRM", "TERM", 0, /* 9-16 */ |
| 12 | "STOP", "TSTP", "CONT", "CHLD", "TTIN", "TTOU", "TINT", "XCPU", /* 17-24 */ |
| 13 | "XFSZ", 0, 0, 0, 0, 0, 0, 0, /* 25-31 */ |
| 14 | }; |
| 15 | |
| 16 | main(argc, argv) |
| 17 | char **argv; |
| 18 | { |
| 19 | register signo, pid, res; |
| 20 | int errlev; |
| 21 | extern char *sys_errlist[]; |
| 22 | extern errno; |
| 23 | |
| 24 | errlev = 0; |
| 25 | if (argc <= 1) { |
| 26 | usage: |
| 27 | printf("usage: kill [ -sig ] pid ...\n"); |
| 28 | printf("for a list of signals: kill -l\n"); |
| 29 | exit(2); |
| 30 | } |
| 31 | if (*argv[1] == '-') { |
| 32 | if (argv[1][1] == 'l') { |
| 33 | for (signo = 1; signo <= NSIG; signo++) { |
| 34 | if (signm[signo]) |
| 35 | printf("%s ", signm[signo]); |
| 36 | if (signo == 16) |
| 37 | printf("\n"); |
| 38 | } |
| 39 | printf("\n"); |
| 40 | exit(0); |
| 41 | } else if (isdigit(argv[1][1])) { |
| 42 | signo = atoi(argv[1]+1); |
| 43 | if (signo < 1 || signo > NSIG) { |
| 44 | printf("kill: %s: number out of range\n", |
| 45 | argv[1]); |
| 46 | exit(1); |
| 47 | } |
| 48 | } else { |
| 49 | char *name = argv[1]+1; |
| 50 | for (signo = 1; signo <= NSIG; signo++) |
| 51 | if (signm[signo] && !strcmp(signm[signo], name)) |
| 52 | goto foundsig; |
| 53 | printf("kill: %s: unknown signal; kill -l lists signals\n", name); |
| 54 | exit(1); |
| 55 | foundsig: |
| 56 | ; |
| 57 | } |
| 58 | argc--; |
| 59 | argv++; |
| 60 | } else |
| 61 | signo = SIGTERM; |
| 62 | argv++; |
| 63 | while (argc > 1) { |
| 64 | if (**argv<'0' || **argv>'9') |
| 65 | goto usage; |
| 66 | res = kill(pid = atoi(*argv), signo); |
| 67 | if (res<0) { |
| 68 | printf("%u: %s\n", pid, sys_errlist[errno]); |
| 69 | errlev = 1; |
| 70 | } |
| 71 | argc--; |
| 72 | argv++; |
| 73 | } |
| 74 | return(errlev); |
| 75 | } |