-#include "internal.h"
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini kill/killall implementation for busybox
+ *
+ * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.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
+ * 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"
-const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n";
-
-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},
+#define KILL 0
+#define KILLALL 1
+
+extern int kill_main(int argc, char **argv)
+{
+ int whichApp, signo = SIGTERM;
+ const char *name;
+ int errors = 0;
+
+#ifdef CONFIG_KILLALL
+ int quiet=0;
+ /* Figure out what we are trying to do here */
+ whichApp = (strcmp(bb_applet_name, "killall") == 0)? KILLALL : KILL;
#else
- {"USR2", SIGUSR2},
+ whichApp = KILL;
#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},
-#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},
+
+ /* Parse any options */
+ if (argc < 2)
+ bb_show_usage();
+
+ if(argv[1][0] != '-'){
+ argv++;
+ argc--;
+ goto do_it_now;
+ }
+
+ /* The -l option, which prints out signal names. */
+ if(argv[1][1]=='l' && argv[1][2]=='\0'){
+ if(argc==2) {
+ /* Print the whole signal list */
+ int col = 0;
+ for(signo=1; signo < NSIG; signo++) {
+ name = u_signal_names(0, &signo, 1);
+ if(name==NULL) /* unnamed */
+ continue;
+ col += printf("%2d) %-16s", signo, name);
+ if (col > 60) {
+ printf("\n");
+ col = 0;
+ }
+ }
+ printf("\n");
+
+ } else {
+ for(argv++; *argv; argv++) {
+ name = u_signal_names(*argv, &signo, -1);
+ if(name!=NULL)
+ printf("%s\n", name);
+ }
+ }
+ /* If they specified -l, were all done */
+ return EXIT_SUCCESS;
+ }
+
+#ifdef CONFIG_KILLALL
+ /* The -q quiet option */
+ if(whichApp != KILL && argv[1][1]=='q' && argv[1][2]=='\0'){
+ quiet++;
+ argv++;
+ argc--;
+ if(argc<2 || argv[1][0] != '-'){
+ goto do_it_now;
+ }
+ }
#endif
- {0, 0}
-};
-extern int kill_main (int argc, char **argv)
-{
- int had_error = 0;
- int sig = SIGTERM;
-
-
-
- if (argv[1][0] == '-') {
- if (argv[1][1] >= '0' && argv[1][1] <= '9') {
- sig = atoi (&argv[1][1]);
- if (sig < 0 || sig >= NSIG)
- goto end;
- } else {
- const struct signal_name *s = signames;
- for (;;) {
- if (strcmp (s->name, &argv[1][1]) == 0) {
- sig = s->number;
- break;
+ if(!u_signal_names(argv[1]+1, &signo, 0))
+ bb_error_msg_and_die( "bad signal name '%s'", argv[1]+1);
+ argv+=2;
+ argc-=2;
+
+do_it_now:
+
+ /* Pid or name required */
+ if (argc <= 0)
+ bb_show_usage();
+
+ if (whichApp == KILL) {
+ /* Looks like they want to do a kill. Do that */
+ while (--argc >= 0) {
+ int pid;
+
+ if (!isdigit(**argv) && **argv != '-')
+ bb_error_msg_and_die( "Bad PID '%s'", *argv);
+ pid = strtol(*argv, NULL, 0);
+ if (kill(pid, signo) != 0) {
+ bb_perror_msg( "Could not kill pid '%d'", pid);
+ errors++;
+ }
+ argv++;
}
- s++;
- if (s->name == 0)
- goto end;
- }
+
}
- argv++;
- argc--;
-
- }
- while (argc > 1) {
- int pid;
- if (argv[1][0] < '0' || argv[1][0] > '9')
- goto end;
- pid = atoi (argv[1]);
- if (kill (pid, sig) != 0) {
- had_error = 1;
- perror (argv[1]);
+#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 || *pidList<=0) {
+ errors++;
+ if (quiet==0)
+ bb_error_msg( "%s: no process killed", *argv);
+ } else {
+ long *pl;
+
+ for(pl = pidList; *pl !=0 ; pl++) {
+ if (*pl==myPid)
+ continue;
+ if (kill(*pl, signo) != 0) {
+ errors++;
+ if (quiet==0)
+ bb_perror_msg( "Could not kill pid '%ld'", *pl);
+ }
+ }
+ }
+ free(pidList);
+ argv++;
+ }
}
- argv++;
- argc--;
- }
- if (had_error) {
-end:
- usage (kill_usage);
- }
- exit (TRUE);
+#endif
+ return errors;
}
projects / oweals / busybox.git / blobdiff