user/sysutils/kill.c

   1 /* kill.c
   2  *
   3  * Copyright (c) 1993 by David I. Bell
   4  * Copyright (C) 1999, Rt-Control Inc.
   5  * Copyright (C) 2000  Lineo, Inc.  (www.lineo.com)
   6  *
   7  * Permission is granted to use, distribute, or modify this source,
   8  * provided that this copyright notice remains intact.
   9  *
  10  */
  11
  12 #include <sys/types.h>
  13 #include <sys/stat.h>
  14 #include <sys/time.h>
  15 #include <string.h>
  16 #include <unistd.h>
  17 #include <fcntl.h>
  18 #include <signal.h>
  19 #include <pwd.h>
  20 #include <grp.h>
  21 #include <utime.h>
  22 #include <errno.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <ctype.h>
  27
  28 #ifndef isdecimal
  29 #define isdecimal(X) ((X) >= '0' && (X) <= '9' ? 1 : 0)
  30 #endif
  31
  32 int
  33 main(argc, argv)
  34         char    **argv;
  35 {
  36         char    *cp;
  37         int     sig;
  38         int     pid;
  39
  40         sig = SIGTERM;
  41
  42         if (argv[1][0] == '-') {
  43                 cp = &argv[1][1];
  44                 if (strcmp(cp, "HUP") == 0)
  45                         sig = SIGHUP;
  46                 else if (strcmp(cp, "INT") == 0)
  47                         sig = SIGINT;
  48                 else if (strcmp(cp, "QUIT") == 0)
  49                         sig = SIGQUIT;
  50                 else if (strcmp(cp, "ILL") == 0)
  51                         sig = SIGILL;
  52                 else if (strcmp(cp, "TRAP") == 0)
  53                         sig = SIGTRAP;
  54                 else if (strcmp(cp, "ABRT") == 0)
  55                         sig = SIGABRT;
  56                 else if (strcmp(cp, "IOT") == 0)
  57                         sig = SIGIOT;
  58                 else if (strcmp(cp, "BUS") == 0)
  59                         sig = SIGBUS;
  60                 else if (strcmp(cp, "FPE") == 0)
  61                         sig = SIGFPE;
  62                 else if (strcmp(cp, "KILL") == 0)
  63                         sig = SIGKILL;
  64                 else if (strcmp(cp, "USR1") == 0)
  65                         sig = SIGUSR1;
  66                 else if (strcmp(cp, "SEGV") == 0)
  67                         sig = SIGSEGV;
  68                 else if (strcmp(cp, "USR2") == 0)
  69                         sig = SIGUSR2;
  70                 else if (strcmp(cp, "PIPE") == 0)
  71                         sig = SIGPIPE;
  72                 else if (strcmp(cp, "ALRM") == 0)
  73                         sig = SIGALRM;
  74                 else if (strcmp(cp, "TERM") == 0)
  75                         sig = SIGTERM;
  76                 else if (strcmp(cp, "STKFLT") == 0)
  77                         sig = SIGSTKFLT;
  78                 else if (strcmp(cp, "CHLD") == 0)
  79                         sig = SIGCHLD;
  80                 else if (strcmp(cp, "CONT") == 0)
  81                         sig = SIGCONT;
  82                 else if (strcmp(cp, "STOP") == 0)
  83                         sig = SIGSTOP;
  84                 else if (strcmp(cp, "TSTP") == 0)
  85                         sig = SIGTSTP;
  86                 else if (strcmp(cp, "TTIN") == 0)
  87                         sig = SIGTTIN;
  88                 else if (strcmp(cp, "TTOU") == 0)
  89                         sig = SIGTTOU;
  90                 else if (strcmp(cp, "URG") == 0)
  91                         sig = SIGURG;
  92                 else if (strcmp(cp, "PWR") == 0)
  93                         sig = SIGPWR;
  94                 else {
  95                         sig = 0;
  96                         while (isdecimal(*cp))
  97                                 sig = sig * 10 + *cp++ - '0';
  98
  99                         if (*cp) {
 100                                 write(2, "Unknown signal\n", strlen("Unknown signal\n"));
 101                                 exit(1);
 102                         }
 103                 }
 104                 argc--;
 105                 argv++;
 106         }
 107
 108         while (argc-- > 1) {
 109                 cp = *++argv;
 110                 pid = 0;
 111                 while (isdecimal(*cp))
 112                         pid = pid * 10 + *cp++ - '0';
 113
 114                 if (*cp) {
 115                         write(2, "Non-numeric pid\n", strlen("Non-numeric pid\n"));
 116                         exit(1);
 117                 }
 118
 119                 if (kill(pid, sig) < 0)
 120                         perror(*argv);
 121         }
 122         return 0;
 123 }