1 /* killall.c - Send signal (default: TERM) to all processes with given names.
2 *
3 * Copyright 2012 Andreas Heck <aheck@gmx.de>
4 *
5 * http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/killall.html
6
7 USE_KILLALL(NEWTOY(killall, "?s:lqvi", TOYFLAG_USR|TOYFLAG_BIN))
8
9 config KILLALL
10 bool "killall"
11 default y
12 help
13 usage: killall [-l] [-iqv] [-SIGNAL|-s SIGNAL] PROCESS_NAME...
14
15 Send a signal (default: TERM) to all processes with the given names.
16
17 -i ask for confirmation before killing
18 -l print list of all available signals
19 -q don't print any warnings or error messages
20 -s send SIGNAL instead of SIGTERM
21 -v report if the signal was successfully sent
22 */
23
24 #define FOR_killall
25 #include "toys.h"
26
GLOBALS(char * sig;int signum;pid_t cur_pid;char ** names;short * err;)27 GLOBALS(
28 char *sig;
29
30 int signum;
31 pid_t cur_pid;
32 char **names;
33 short *err;
34 )
35
36 static int kill_process(pid_t pid, char *name)
37 {
38 int offset = 0;
39
40 if (pid == TT.cur_pid) return 0;
41
42 if (toys.optflags & FLAG_i) {
43 fprintf(stderr, "Signal %s(%d)", name, (int)pid);
44 if (!yesno(0)) return 0;
45 }
46
47 errno = 0;
48 kill(pid, TT.signum);
49 for (;;) {
50 if (TT.names[offset] == name) {
51 TT.err[offset] = errno;
52 break;
53 } else offset++;
54 }
55 if (errno) {
56 if (!(toys.optflags & FLAG_q)) perror_msg("pid %d", (int)pid);
57 } else if (toys.optflags & FLAG_v)
58 printf("Killed %s(%d) with signal %d\n", name, pid, TT.signum);
59
60 return 0;
61 }
62
killall_main(void)63 void killall_main(void)
64 {
65 int i;
66
67 TT.names = toys.optargs;
68 TT.signum = SIGTERM;
69
70 if (toys.optflags & FLAG_l) {
71 sig_to_num(NULL);
72 return;
73 }
74
75 if (TT.sig || (*TT.names && **TT.names == '-')) {
76 if (0 > (TT.signum = sig_to_num(TT.sig ? TT.sig : (*TT.names)+1))) {
77 if (toys.optflags & FLAG_q) exit(1);
78 error_exit("Invalid signal");
79 }
80 if (!TT.sig) {
81 TT.names++;
82 toys.optc--;
83 }
84 }
85
86 if (!(toys.optflags & FLAG_l) && !toys.optc) help_exit("no name");
87
88 TT.cur_pid = getpid();
89
90 TT.err = xmalloc(2*toys.optc);
91 for (i=0; i<toys.optc; i++) TT.err[i] = ESRCH;
92 names_to_pid(TT.names, kill_process);
93 for (i=0; i<toys.optc; i++) {
94 if (TT.err[i]) {
95 toys.exitval = 1;
96 errno = TT.err[i];
97 perror_msg_raw(TT.names[i]);
98 }
99 }
100 if (CFG_TOYBOX_FREE) free(TT.err);
101 }
102