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annotate toys/lsb/killall.c @ 669:10ad87be2c55

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Trivial cleanup
author Rob Landley <rob@landley.net>
date Sat, 06 Oct 2012 19:01:23 -0500
parents 6df4ccc0acbe
children 7e846e281e38
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1 /* vi: set sw=4 ts=4:
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2 *
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3 * killall.c - Send signal (default: TERM) to all processes with given names.
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4 *
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5 * Copyright 2012 Andreas Heck <aheck@gmx.de>
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6 *
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7 * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/killall.html
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8
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9 USE_KILLALL(NEWTOY(killall, "<1?lq", TOYFLAG_USR|TOYFLAG_BIN))
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10
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11 config KILLALL
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12 bool "killall"
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13 default y
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14 help
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15 usage: killall [-l] [-q] [-SIG] PROCESS_NAME...
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16
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17 Send a signal (default: TERM) to all processes with the given names.
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18
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19 -l print list of all available signals
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20 -q don't print any warnings or error messages
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21 */
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22
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23 #include "toys.h"
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24
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25 #define FLAG_q 1
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26 #define FLAG_l 2
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27
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28 DEFINE_GLOBALS(
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29 int signum;
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30 )
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31 #define TT this.killall
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32
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33 static void kill_process(pid_t pid)
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34 {
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35 int ret;
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36
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37 toys.exitval = 0;
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38 ret = kill(pid, TT.signum);
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39
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40 if (ret == -1 && !(toys.optflags & FLAG_q)) perror("kill");
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41 }
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42
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43 void killall_main(void)
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44 {
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45 char **names;
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46
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47 if (toys.optflags & FLAG_l) {
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48 sig_to_num(NULL);
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49 return;
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50 }
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51
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52 TT.signum = SIGTERM;
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53 toys.exitval++;
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54
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55 if (!*toys.optargs) {
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56 toys.exithelp = 1;
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57 error_exit("Process name missing!");
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58 }
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59
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60 names = toys.optargs;
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61
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62 if (**names == '-') {
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63 if (0 > (TT.signum = sig_to_num((*names)+1))) {
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64 if (toys.optflags & FLAG_q) exit(1);
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65 error_exit("Invalid signal");
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66 }
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67 names++;
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69 if (!*names) {
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70 toys.exithelp++;
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71 error_exit("Process name missing!");
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72 }
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73 }
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74
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75 for_each_pid_with_name_in(names, kill_process);
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76
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77 if (toys.exitval && !(toys.optflags & FLAG_q))
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78 error_exit("No such process");
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79 }