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annotate toys/lsb/killall.c @ 1057:242c5de2bb22 draft

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Replace for_each_pid_with_name_in_array_perform_callback_function_upon_translated_value() with name_to_pid(), comparing absolute paths or just basename() consistently as spotted by Lukasz Skalski, and adjust callers.
author Rob Landley <rob@landley.net>
date Tue, 03 Sep 2013 18:43:32 -0500
parents 979d038c1688
children a9374aa2631a
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1 /* killall.c - Send signal (default: TERM) to all processes with given names.
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2 *
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3 * Copyright 2012 Andreas Heck <aheck@gmx.de>
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4 *
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5 * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/killall.html
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6
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7 USE_KILLALL(NEWTOY(killall, "<1?lqvi", TOYFLAG_USR|TOYFLAG_BIN))
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8
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9 config KILLALL
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10 bool "killall"
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11 default y
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12 help
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13 usage: killall [-l] [-iqv] [-SIG] PROCESS_NAME...
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14
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15 Send a signal (default: TERM) to all processes with the given names.
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16
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17 -i ask for confirmation before killing
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18 -l print list of all available signals
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19 -q don't print any warnings or error messages
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20 -v report if the signal was successfully sent
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21 */
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22
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23 #define FOR_killall
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24 #include "toys.h"
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25
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26 GLOBALS(
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27 int signum;
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28 pid_t cur_pid;
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29 )
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30
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31 static int kill_process(pid_t pid, char *name)
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32 {
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33 int ret;
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34
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35 if (pid == TT.cur_pid) return 0;
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36
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37 if (toys.optflags & FLAG_i) {
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38 sprintf(toybuf, "Signal %s(%d) ?", name, pid);
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39 if (yesno(toybuf, 0) == 0) return 0;
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40 }
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41
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42 ret = kill(pid, TT.signum);
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43 if (ret == -1 && !(toys.optflags & FLAG_q))
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44 error_msg("bad %u", (unsigned)pid);
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45 else if (toys.optflags & FLAG_v)
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46 printf("Killed %s(%d) with signal %d\n", name, pid, TT.signum);
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47
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48 return 0;
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49 }
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50
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51 void killall_main(void)
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52 {
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53 char **names = toys.optargs;
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54
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55 TT.signum = SIGTERM;
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56 toys.exitval++;
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57
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58 if (toys.optflags & FLAG_l) {
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59 sig_to_num(NULL);
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60 return;
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61 }
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63 if (**names == '-') {
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64 if (0 > (TT.signum = sig_to_num((*names)+1))) {
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65 if (toys.optflags & FLAG_q) exit(1);
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66 error_exit("Invalid signal");
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67 }
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68 names++;
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69 }
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71 if (!*names) {
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72 toys.exithelp++;
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73 error_exit("Process name missing!");
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74 }
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76 TT.cur_pid = getpid();
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77
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78 names_to_pid(names, kill_process);
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80 if (toys.exitval && !(toys.optflags & FLAG_q)) error_exit("No such process");
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81 }