2.9BSD - /usr/src/cmd/kill.c

   1: #ifndef lint
   2: static  char *sccsid = "@(#)kill.c	4.2 (Berkeley) 10/9/80";
   3: #endif
   4: /*
   5:  * kill - send signal to process
   6:  */
   7: 
   8: #include <whoami.h>
   9: #include <signal.h>
  10: #include <ctype.h>
  11: 
  12: char *signm[] = { 0,
  13: "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT", "EMT", "FPE",   /* 1-8 */
  14: "KILL", "BUS", "SEGV", "SYS", "PIPE", "ALRM", "TERM", 0,    /* 9-16 */
  15: "STOP", "TSTP", "CONT", "CHLD", "TTIN", "TTOU", "TINT", "XCPU", /* 17-24 */
  16: "XFSZ", 0, 0, 0, 0, 0, 0, 0,                    /* 25-31 */
  17: };
  18: 
  19: main(argc, argv)
  20: char **argv;
  21: {
  22:     register signo, pid, res;
  23:     int errlev;
  24:     extern char *sys_errlist[];
  25:     extern errno;
  26: 
  27:     errlev = 0;
  28:     if (argc <= 1) {
  29:     usage:
  30:         printf("usage: kill [ -sig ] pid ...\n");
  31:         printf("for a list of signals: kill -l\n");
  32:         exit(2);
  33:     }
  34:     if (*argv[1] == '-') {
  35:         if (argv[1][1] == 'l') {
  36:             for (signo = 1; signo <= NSIG; signo++) {
  37:                 if (signm[signo])
  38:                     printf("%s ", signm[signo]);
  39:                 if (signo == 16)
  40:                     printf("\n");
  41:             }
  42:             printf("\n");
  43:             exit(0);
  44:         } else if (isdigit(argv[1][1])) {
  45:             signo = atoi(argv[1]+1);
  46:             if (signo < 1 || signo > NSIG) {
  47:                 printf("kill: %s: number out of range\n",
  48:                     argv[1]);
  49:                 exit(1);
  50:             }
  51:         } else {
  52:             char *name = argv[1]+1;
  53:             for (signo = 1; signo <= NSIG; signo++)
  54:             if (signm[signo] && !strcmp(signm[signo], name))
  55:                 goto foundsig;
  56:             printf("kill: %s: unknown signal; kill -l lists signals\n", name);
  57:             exit(1);
  58: foundsig:
  59:             ;
  60:         }
  61:         argc--;
  62:         argv++;
  63:     } else
  64:         signo = SIGTERM;
  65:     argv++;
  66:     while (argc > 1) {
  67:         if (**argv<'0' || **argv>'9')
  68:             goto usage;
  69:         res = kill(pid = atoi(*argv), signo);
  70:         if (res<0) {
  71:             printf("%u: %s\n", pid, sys_errlist[errno]);
  72:             errlev = 1;
  73:         }
  74:         argc--;
  75:         argv++;
  76:     }
  77:     return(errlev);
  78: }

Defined functions

Defined variables