cbe31dace5
header file usage before the 0.49 release. To fix it, I had to move the '#include "busybox.h"' to the end of the list of #include files. -Erik
248 lines
6.1 KiB
C
248 lines
6.1 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini kill/killall implementation for busybox
|
|
*
|
|
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "busybox.h"
|
|
|
|
static const int KILL = 0;
|
|
static const int KILLALL = 1;
|
|
|
|
struct signal_name {
|
|
const char *name;
|
|
int number;
|
|
};
|
|
|
|
const struct signal_name signames[] = {
|
|
/* POSIX signals */
|
|
{ "HUP", SIGHUP }, /* 1 */
|
|
{ "INT", SIGINT }, /* 2 */
|
|
{ "QUIT", SIGQUIT }, /* 3 */
|
|
{ "ILL", SIGILL }, /* 4 */
|
|
{ "ABRT", SIGABRT }, /* 6 */
|
|
{ "FPE", SIGFPE }, /* 8 */
|
|
{ "KILL", SIGKILL }, /* 9 */
|
|
{ "SEGV", SIGSEGV }, /* 11 */
|
|
{ "PIPE", SIGPIPE }, /* 13 */
|
|
{ "ALRM", SIGALRM }, /* 14 */
|
|
{ "TERM", SIGTERM }, /* 15 */
|
|
{ "USR1", SIGUSR1 }, /* 10 (arm,i386,m68k,ppc), 30 (alpha,sparc*), 16 (mips) */
|
|
{ "USR2", SIGUSR2 }, /* 12 (arm,i386,m68k,ppc), 31 (alpha,sparc*), 17 (mips) */
|
|
{ "CHLD", SIGCHLD }, /* 17 (arm,i386,m68k,ppc), 20 (alpha,sparc*), 18 (mips) */
|
|
{ "CONT", SIGCONT }, /* 18 (arm,i386,m68k,ppc), 19 (alpha,sparc*), 25 (mips) */
|
|
{ "STOP", SIGSTOP }, /* 19 (arm,i386,m68k,ppc), 17 (alpha,sparc*), 23 (mips) */
|
|
{ "TSTP", SIGTSTP }, /* 20 (arm,i386,m68k,ppc), 18 (alpha,sparc*), 24 (mips) */
|
|
{ "TTIN", SIGTTIN }, /* 21 (arm,i386,m68k,ppc,alpha,sparc*), 26 (mips) */
|
|
{ "TTOU", SIGTTOU }, /* 22 (arm,i386,m68k,ppc,alpha,sparc*), 27 (mips) */
|
|
/* Miscellaneous other signals */
|
|
#ifdef SIGTRAP
|
|
{ "TRAP", SIGTRAP }, /* 5 */
|
|
#endif
|
|
#ifdef SIGIOT
|
|
{ "IOT", SIGIOT }, /* 6, same as SIGABRT */
|
|
#endif
|
|
#ifdef SIGEMT
|
|
{ "EMT", SIGEMT }, /* 7 (mips,alpha,sparc*) */
|
|
#endif
|
|
#ifdef SIGBUS
|
|
{ "BUS", SIGBUS }, /* 7 (arm,i386,m68k,ppc), 10 (mips,alpha,sparc*) */
|
|
#endif
|
|
#ifdef SIGSYS
|
|
{ "SYS", SIGSYS }, /* 12 (mips,alpha,sparc*) */
|
|
#endif
|
|
#ifdef SIGSTKFLT
|
|
{ "STKFLT", SIGSTKFLT }, /* 16 (arm,i386,m68k,ppc) */
|
|
#endif
|
|
#ifdef SIGURG
|
|
{ "URG", SIGURG }, /* 23 (arm,i386,m68k,ppc), 16 (alpha,sparc*), 21 (mips) */
|
|
#endif
|
|
#ifdef SIGIO
|
|
{ "IO", SIGIO }, /* 29 (arm,i386,m68k,ppc), 23 (alpha,sparc*), 22 (mips) */
|
|
#endif
|
|
#ifdef SIGPOLL
|
|
{ "POLL", SIGPOLL }, /* same as SIGIO */
|
|
#endif
|
|
#ifdef SIGCLD
|
|
{ "CLD", SIGCLD }, /* same as SIGCHLD (mips) */
|
|
#endif
|
|
#ifdef SIGXCPU
|
|
{ "XCPU", SIGXCPU }, /* 24 (arm,i386,m68k,ppc,alpha,sparc*), 30 (mips) */
|
|
#endif
|
|
#ifdef SIGXFSZ
|
|
{ "XFSZ", SIGXFSZ }, /* 25 (arm,i386,m68k,ppc,alpha,sparc*), 31 (mips) */
|
|
#endif
|
|
#ifdef SIGVTALRM
|
|
{ "VTALRM", SIGVTALRM }, /* 26 (arm,i386,m68k,ppc,alpha,sparc*), 28 (mips) */
|
|
#endif
|
|
#ifdef SIGPROF
|
|
{ "PROF", SIGPROF }, /* 27 (arm,i386,m68k,ppc,alpha,sparc*), 29 (mips) */
|
|
#endif
|
|
#ifdef SIGPWR
|
|
{ "PWR", SIGPWR }, /* 30 (arm,i386,m68k,ppc), 29 (alpha,sparc*), 19 (mips) */
|
|
#endif
|
|
#ifdef SIGINFO
|
|
{ "INFO", SIGINFO }, /* 29 (alpha) */
|
|
#endif
|
|
#ifdef SIGLOST
|
|
{ "LOST", SIGLOST }, /* 29 (arm,i386,m68k,ppc,sparc*) */
|
|
#endif
|
|
#ifdef SIGWINCH
|
|
{ "WINCH", SIGWINCH }, /* 28 (arm,i386,m68k,ppc,alpha,sparc*), 20 (mips) */
|
|
#endif
|
|
#ifdef SIGUNUSED
|
|
{ "UNUSED", SIGUNUSED }, /* 31 (arm,i386,m68k,ppc) */
|
|
#endif
|
|
{0, 0}
|
|
};
|
|
|
|
extern int kill_main(int argc, char **argv)
|
|
{
|
|
int whichApp, sig = SIGTERM;
|
|
|
|
#ifdef BB_KILLALL
|
|
/* Figure out what we are trying to do here */
|
|
whichApp = (strcmp(applet_name, "killall") == 0)? KILLALL : KILL;
|
|
#else
|
|
whichApp = KILL;
|
|
#endif
|
|
|
|
argc--;
|
|
argv++;
|
|
/* Parse any options */
|
|
if (argc < 1)
|
|
show_usage();
|
|
|
|
while (argc > 0 && **argv == '-') {
|
|
while (*++(*argv)) {
|
|
switch (**argv) {
|
|
case 'l':
|
|
{
|
|
int col = 0;
|
|
const struct signal_name *s = signames;
|
|
|
|
while (s->name != 0) {
|
|
col +=
|
|
fprintf(stderr, "%2d) %-8s", s->number,
|
|
(s++)->name);
|
|
if (col > 60) {
|
|
fprintf(stderr, "\n");
|
|
col = 0;
|
|
}
|
|
}
|
|
fprintf(stderr, "\n\n");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
break;
|
|
case '-':
|
|
show_usage();
|
|
default:
|
|
{
|
|
if (isdigit(**argv)) {
|
|
sig = atoi(*argv);
|
|
if (sig < 0 || sig >= NSIG)
|
|
goto end;
|
|
else {
|
|
argc--;
|
|
argv++;
|
|
goto do_it_now;
|
|
}
|
|
} else {
|
|
const struct signal_name *s = signames;
|
|
|
|
while (s->name != 0) {
|
|
if (strcasecmp(s->name, *argv) == 0) {
|
|
sig = s->number;
|
|
argc--;
|
|
argv++;
|
|
goto do_it_now;
|
|
}
|
|
s++;
|
|
}
|
|
if (s->name == 0)
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
argc--;
|
|
argv++;
|
|
}
|
|
}
|
|
|
|
do_it_now:
|
|
|
|
if (whichApp == KILL) {
|
|
/* Looks like they want to do a kill. Do that */
|
|
while (--argc >= 0) {
|
|
int pid;
|
|
|
|
if (!isdigit(**argv))
|
|
perror_msg_and_die( "Bad PID");
|
|
pid = strtol(*argv, NULL, 0);
|
|
if (kill(pid, sig) != 0)
|
|
perror_msg_and_die( "Could not kill pid '%d'", pid);
|
|
argv++;
|
|
}
|
|
}
|
|
#ifdef BB_KILLALL
|
|
else {
|
|
int all_found = TRUE;
|
|
pid_t myPid=getpid();
|
|
/* Looks like they want to do a killall. Do that */
|
|
while (--argc >= 0) {
|
|
pid_t* pidList;
|
|
|
|
pidList = find_pid_by_name( *argv);
|
|
if (!pidList) {
|
|
all_found = FALSE;
|
|
error_msg( "%s: no process killed", *argv);
|
|
}
|
|
|
|
for(; pidList && *pidList!=0; pidList++) {
|
|
if (*pidList==myPid)
|
|
continue;
|
|
if (kill(*pidList, sig) != 0)
|
|
perror_msg_and_die( "Could not kill pid '%d'", *pidList);
|
|
}
|
|
/* Note that we don't bother to free the memory
|
|
* allocated in find_pid_by_name(). It will be freed
|
|
* upon exit, so we can save a byte or two */
|
|
argv++;
|
|
}
|
|
if (all_found == FALSE)
|
|
return EXIT_FAILURE;
|
|
}
|
|
#endif
|
|
|
|
return EXIT_SUCCESS;
|
|
|
|
|
|
end:
|
|
error_msg_and_die( "bad signal name: %s", *argv);
|
|
}
|