+/* vi: set sw=4 ts=4: */
/*
- * Mini kill implementation for busybox
+ * Mini kill/killall implementation for busybox
*
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
+ * Copyright (C) 1999-2002 by Erik Andersen <andersee@debian.org>
*
* 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
*/
-#include "internal.h"
#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"
-const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n";
+static const int KILL = 0;
+static const int KILLALL = 1;
-struct signal_name {
- const char *name;
- int number;
-};
-const struct signal_name signames[] = {
- {"HUP", SIGHUP},
- {"INT", SIGINT},
- {"QUIT", SIGQUIT},
- {"ILL", SIGILL},
- {"TRAP", SIGTRAP},
- {"ABRT", SIGABRT},
-#ifndef __alpha__
- {"IOT", SIGIOT},
-#endif
-#if defined(__sparc__) || defined(__alpha__)
- {"EMT", SIGEMT},
-#else
- {"BUS", SIGBUS},
-#endif
- {"FPE", SIGFPE},
- {"KILL", SIGKILL},
-#if defined(__sparc__) || defined(__alpha__)
- {"BUS", SIGBUS},
-#else
- {"USR1", SIGUSR1},
-#endif
- {"SEGV", SIGSEGV},
-#if defined(__sparc__) || defined(__alpha__)
- {"SYS", SIGSYS},
-#else
- {"USR2", SIGUSR2},
-#endif
- {"PIPE", SIGPIPE},
- {"ALRM", SIGALRM},
- {"TERM", SIGTERM},
-#if defined(__sparc__) || defined(__alpha__)
- {"URG", SIGURG},
- {"STOP", SIGSTOP},
- {"TSTP", SIGTSTP},
- {"CONT", SIGCONT},
- {"CHLD", SIGCHLD},
- {"TTIN", SIGTTIN},
- {"TTOU", SIGTTOU},
- {"IO", SIGIO},
-# ifndef __alpha__
- {"POLL", SIGIO},
-# endif
- {"XCPU", SIGXCPU},
- {"XFSZ", SIGXFSZ},
- {"VTALRM", SIGVTALRM},
- {"PROF", SIGPROF},
- {"WINCH", SIGWINCH},
-# ifdef __alpha__
- {"INFO", SIGINFO},
-# else
- {"LOST", SIGLOST},
-# endif
- {"USR1", SIGUSR1},
- {"USR2", SIGUSR2},
+extern int kill_main(int argc, char **argv)
+{
+ int whichApp, sig = SIGTERM, quiet;
+ const char *name;
+ int errors = 0;
+
+#ifdef CONFIG_KILLALL
+ /* Figure out what we are trying to do here */
+ whichApp = (strcmp(applet_name, "killall") == 0)? KILLALL : KILL;
#else
- {"STKFLT", SIGSTKFLT},
- {"CHLD", SIGCHLD},
- {"CONT", SIGCONT},
- {"STOP", SIGSTOP},
- {"TSTP", SIGTSTP},
- {"TTIN", SIGTTIN},
- {"TTOU", SIGTTOU},
- {"URG", SIGURG},
- {"XCPU", SIGXCPU},
- {"XFSZ", SIGXFSZ},
- {"VTALRM", SIGVTALRM},
- {"PROF", SIGPROF},
- {"WINCH", SIGWINCH},
- {"IO", SIGIO},
- {"POLL", SIGPOLL},
- {"PWR", SIGPWR},
- {"UNUSED", SIGUNUSED},
+ whichApp = KILL;
#endif
- {0, 0}
-};
-extern int kill_main (int argc, char **argv)
-{
- int sig = SIGTERM;
-
- if ( argc < 2 )
- usage (kill_usage);
+ quiet=0;
+ argc--;
+ argv++;
+ /* Parse any options */
+ if (argc < 1)
+ show_usage();
- if ( **(argv+1) == '-' ) {
- if (isdigit( *(*(++argv)+1) )) {
- sig = atoi (*argv);
- if (sig < 0 || sig >= NSIG)
- goto end;
- }
- else {
- const struct signal_name *s = signames;
- while (s->name != 0) {
- if (strcasecmp (s->name, *argv+1) == 0) {
- sig = s->number;
- break;
+ while (argc > 0 && **argv == '-') {
+ while (*++(*argv)) {
+ switch (**argv) {
+#ifdef CONFIG_KILLALL
+ case 'q':
+ quiet++;
+ break;
+#endif
+ case 'l':
+ if(argc>1) {
+ for(argv++; *argv; argv++) {
+ name = u_signal_names(*argv, &sig, -1);
+ if(name!=NULL)
+ printf("%s\n", name);
+ }
+ } else {
+ int col = 0;
+ for(sig=1; sig < NSIG; sig++) {
+ name = u_signal_names(0, &sig, 1);
+ if(name==NULL) /* unnamed */
+ continue;
+ col += printf("%2d) %-16s", sig, name);
+ if (col > 60) {
+ printf("\n");
+ col = 0;
+ }
+ }
+ printf("\n");
+ }
+ return EXIT_SUCCESS;
+ case '-':
+ show_usage();
+ default:
+ name = u_signal_names(*argv, &sig, 0);
+ if(name==NULL)
+ error_msg_and_die( "bad signal name: %s", *argv);
+ argc--;
+ argv++;
+ goto do_it_now;
+ }
+ argc--;
+ argv++;
}
- s++;
- }
- if (s->name == 0)
- goto end;
}
- }
- while (--argc > 1) {
- int pid;
- if (! isdigit( **(++argv))) {
- fprintf(stderr, "bad PID: %s\n", *argv);
- exit( FALSE);
- }
- pid = atoi (*argv);
- if (kill (pid, sig) != 0) {
- perror (*argv);
- exit ( FALSE);
- }
- }
+do_it_now:
-end:
- fprintf(stderr, "bad signal name: %s\n", *argv);
- exit (TRUE);
-}
+ 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( "Could not kill pid '%d'", pid);
+ errors++;
+ }
+ argv++;
+ }
+ }
+#ifdef CONFIG_KILLALL
+ else {
+ pid_t myPid=getpid();
+ /* Looks like they want to do a killall. Do that */
+ while (--argc >= 0) {
+ long* pidList;
+ pidList = find_pid_by_name(*argv);
+ if (*pidList <= 0) {
+ errors++;
+ if (quiet==0)
+ error_msg( "%s: no process killed", *argv);
+ } else {
+ for(; *pidList!=0; pidList++) {
+ if (*pidList==myPid)
+ continue;
+ if (kill(*pidList, sig) != 0) {
+ errors++;
+ if (quiet==0)
+ perror_msg( "Could not kill pid '%d'", *pidList);
+ }
+ }
+ }
+ free(pidList);
+ argv++;
+ }
+ }
+#endif
+ return errors;
+}