toybox: toys/killall.c annotate

annotate toys/killall.c @ 479:1a7110479d49

Cleanups to killall.

author	Rob Landley <rob@landley.net>
date	Sat, 18 Feb 2012 18:54:30 -0600
parents	f0b07ce5f125
children	c9aaceccd6bd

rev	line source
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	1 /* vi: set sw=4 ts=4:
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	2 *
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	3 * killall.c - Send signal (default: TERM) to all processes with given names.
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	4 *
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	5 * Copyright 2012 Andreas Heck <aheck@gmx.de>
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	6 *
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	7 * Not in SUSv4.
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	8
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	9 USE_KILLALL(NEWTOY(killall, "<1?lq", TOYFLAG_USR\|TOYFLAG_BIN))
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	10
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	11 config KILLALL
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	12 bool "killall"
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	13 default y
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	14 help
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	15 usage: killall [-l] [-q] [-SIG] PROCESS_NAME...
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	16
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	17 Send a signal (default: TERM) to all processes with the given names.
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	18
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	19 -l print list of all available signals
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	20 -q don't print any warnings or error messages
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	21 */
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	22
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	23 #include "toys.h"
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	24
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	25 #define FLAG_q 1
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	26 #define FLAG_l 2
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	27
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	28 DEFINE_GLOBALS(
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	29 int signum;
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	30 )
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	31 #define TT this.killall
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	32
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	33 struct signame {
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	34 int num;
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	35 char *name;
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	36 };
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	37
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	38 // Signals required by POSIX 2008:
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	39 // http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	40
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	41 #define SIGNIFY(x) {SIG##x, #x}
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	42
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	43 static struct signame signames[] = {
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	44 SIGNIFY(ABRT), SIGNIFY(ALRM), SIGNIFY(BUS), SIGNIFY(CHLD), SIGNIFY(CONT),
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	45 SIGNIFY(FPE), SIGNIFY(HUP), SIGNIFY(ILL), SIGNIFY(INT), SIGNIFY(KILL),
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	46 SIGNIFY(PIPE), SIGNIFY(QUIT), SIGNIFY(SEGV), SIGNIFY(STOP), SIGNIFY(TERM),
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	47 SIGNIFY(TSTP), SIGNIFY(TTIN), SIGNIFY(TTOU), SIGNIFY(USR1), SIGNIFY(USR2),
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	48 SIGNIFY(SYS), SIGNIFY(TRAP), SIGNIFY(URG), SIGNIFY(VTALRM), SIGNIFY(XCPU),
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	49 SIGNIFY(XFSZ)
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	50 };
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	51
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	52 // SIGNIFY(STKFLT), SIGNIFY(WINCH), SIGNIFY(IO), SIGNIFY(PWR)
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	53
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	54 // Convert name to signal number. If name == NULL print names.
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	55 static int sig_to_num(char *pidstr)
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	56 {
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	57 int i;
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	58
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	59 if (pidstr) {
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	60 if (isdigit(*pidstr)) return atol(pidstr);
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	61 if (!strncasecmp(pidstr, "sig", 3)) pidstr+=3;
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	62 }
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	63 for (i = 0; i < sizeof(signames)/sizeof(struct signame); i++)
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	64 if (!pidstr) xputs(signames[i].name);
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	65 else if (!strcasecmp(pidstr, signames[i].name))
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	66 return signames[i].num;
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	67
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	68 return -1;
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	69 }
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	70
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	71 static void kill_process(pid_t pid)
f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	72 {
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	73 int ret;
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	74
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	75 toys.exitval = 0;
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	76 ret = kill(pid, TT.signum);
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	77
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	78 if (ret == -1 && !(toys.optflags & FLAG_q)) perror("kill");
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	79 }
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	80
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	81 void killall_main(void)
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	82 {
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	83 char **names;
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	84
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	85 if (toys.optflags & FLAG_l) {
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	86 sig_to_num(NULL);
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	87 return;
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	88 }
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	89
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	90 TT.signum = SIGTERM;
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	91 toys.exitval++;
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	92
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	93 if (!*toys.optargs) {
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	94 toys.exithelp = 1;
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	95 error_exit("Process name missing!");
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	96 }
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	97
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	98 names = toys.optargs;
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	99
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	100 if (**names == '-') {
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	101 if (0 > (TT.signum = sig_to_num((*names)+1))) {
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	102 if (toys.optflags & FLAG_q) exit(1);
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	103 error_exit("Invalid signal");
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	104 }
477 f0b07ce5f125 Cleanups to pidof (including some global infrastructure shared with killall). Rob Landley <rob@landley.net> parents: 475 diff changeset	105 names++;
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	106
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	107 if (!*names) {
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	108 toys.exithelp++;
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	109 error_exit("Process name missing!");
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	110 }
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	111 }
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	112
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	113 for_each_pid_with_name_in(names, kill_process);
1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	114
479 1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	115 if (toys.exitval && !(toys.optflags & FLAG_q))
1a7110479d49 Cleanups to killall. Rob Landley <rob@landley.net> parents: 477 diff changeset	116 error_exit("No such process");
475 1fb149e75ebf Add killall by Andreas Heck, and factor out common pid code to lib.h. Rob Landley <rob@landley.net> parents: diff changeset	117 }

Mercurial > hg > toybox

annotate toys/killall.c @ 479:1a7110479d49