-#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>.
+ *
+ * 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";
+static const int KILL = 0;
+static const int KILLALL = 1;
struct signal_name {
- const char * name;
- int number;
+ 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 },
+static 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
- { "FPE", SIGFPE },
- { "KILL", SIGKILL },
-#if defined(sparc) || defined(__alpha__)
- { "BUS", SIGBUS },
-#else
- { "USR1", SIGUSR1 },
+#ifdef SIGIOT
+ { "IOT", SIGIOT }, /* 6, same as SIGABRT */
#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 },
-#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 },
-#endif
- { 0, 0 }
+#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(struct FileInfo * i, int argc, char * * argv)
+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 ) {
- usage(kill_usage);
- exit(-1);
- }
- }
- else {
- const struct signal_name * s = signames;
- for ( ; ; ) {
- if ( strcmp(s->name, &argv[1][1]) == 0 ) {
- sig = s->number;
- break;
+ 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;
}
- s++;
- if ( s->name == 0 ) {
- usage(kill_usage);
- exit(-1);
+ 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++;
}
- argv++;
- argc--;
-
}
- while ( argc > 1 ) {
- int pid;
- if ( argv[1][0] < '0' || argv[1][0] > '9' ) {
- usage(kill_usage);
- exit(-1);
+
+ 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++;
}
- pid = atoi(argv[1]);
- if ( kill(pid, sig) != 0 ) {
- had_error = 1;
- perror(argv[1]);
+ }
+#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++;
}
- argv++;
- argc--;
+ if (all_found == FALSE)
+ return EXIT_FAILURE;
}
- if ( had_error )
- return -1;
- else
- return 0;
+#endif
+
+ return EXIT_SUCCESS;
+
+
+ end:
+ error_msg_and_die( "bad signal name: %s", *argv);
}
projects / oweals / busybox.git / blobdiff