+/* 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 "internal.h"
#include <stdio.h>
#include <stdlib.h>
+#include <errno.h>
#include <unistd.h>
#include <signal.h>
+#include <ctype.h>
+#include <sys/stat.h>
+#include <unistd.h>
-const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n";
+static const char *kill_usage =
+ "kill [-signal] process-id [process-id ...]\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+ "\nSend a signal (default is SIGTERM) to the specified process(es).\n\n"
+ "Options:\n" "\t-l\tList all signal names and numbers.\n\n"
+#endif
+ ;
+
+#ifdef BB_KILLALL
+static const char *killall_usage =
+ "killall [-signal] process-name [process-name ...]\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+ "\nSend a signal (default is SIGTERM) to the specified process(es).\n\n"
+ "Options:\n" "\t-l\tList all signal names and numbers.\n\n"
+#endif
+#endif
+ ;
+
+#define KILL 0
+#define 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 },
+ /* Everything, order not important */
+ {"HUP", SIGHUP},
+ {"INT", SIGINT},
+ {"QUIT", SIGQUIT},
+ {"ILL", SIGILL},
+ {"TRAP", SIGTRAP},
+ {"ABRT", SIGABRT},
+ {"FPE", SIGFPE},
+ {"KILL", SIGKILL},
+ {"SEGV", SIGSEGV},
+ {"PIPE", SIGPIPE},
+ {"ALRM", SIGALRM},
+ {"TERM", SIGTERM},
+ {"BUS", SIGBUS},
+ {"USR1", SIGUSR1},
+ {"USR2", SIGUSR2},
+ {"STOP", SIGSTOP},
+ {"CONT", SIGCONT},
+ {"TTIN", SIGTTIN},
+ {"TTOU", SIGTTOU},
+ {"IO", SIGIO},
+ {"TSTP", SIGTSTP},
+ {"CHLD", SIGCHLD},
+ {"XCPU", SIGXCPU},
+ {"XFSZ", SIGXFSZ},
+ {"PROF", SIGPROF},
+ {"WINCH", SIGWINCH},
+ {"URG", SIGURG},
+ {"VTALRM", SIGVTALRM},
#ifndef __alpha__
- { "IOT", SIGIOT },
+ /* everything except alpha */
+ {"IOT", SIGIOT},
+ {"POLL", SIGPOLL},
#endif
-#if defined(sparc) || defined(__alpha__)
- { "EMT", SIGEMT },
-#else
- { "BUS", SIGBUS },
+#if defined(__sparc__) || defined(__alpha__) || defined(__mips__)
+ /* everthing except intel */
+ {"EMT", SIGEMT},
+ {"SYS", SIGSYS},
+# ifdef __alpha__
+ /* alpha only */
+ {"LOST", SIGLOST},
#endif
- { "FPE", SIGFPE },
- { "KILL", SIGKILL },
-#if defined(sparc) || defined(__alpha__)
- { "BUS", SIGBUS },
-#else
- { "USR1", SIGUSR1 },
+#ifdef __sparc__
+ /* space only */
+ {"INFO", SIGINFO},
#endif
- { "SEGV", SIGSEGV },
-#if defined(sparc) || defined(__alpha__)
- { "SYS", SIGSYS },
-#else
- { "USR2", SIGUSR2 },
+#ifdef __mips__
+ /* mips only */
+ {"CLD", SIGCLD},
+ {"PWR", SIGPWR},
#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 },
+ /* intel only */
+ {"STKFLT", SIGSTKFLT},
+ {"PWR", SIGPWR},
+ {"UNUSED", SIGUNUSED},
#endif
- { 0, 0 }
+ {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;
+ const char *appUsage;
+
+#ifdef BB_KILLALL
+ /* Figure out what we are trying to do here */
+ whichApp = (strcmp(applet_name, "killall") == 0)? KILLALL : KILL;
+ appUsage = (whichApp == KILLALL)? killall_usage : kill_usage;
+#else
+ whichApp = KILL;
+ appUsage = kill_usage;
+#endif
+
+ argc--;
+ argv++;
+ /* Parse any options */
+ if (argc < 1)
+ usage(appUsage);
+
+ 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");
+ exit(TRUE);
}
- s++;
- if ( s->name == 0 ) {
- usage(kill_usage);
- exit(-1);
+ break;
+ case '-':
+ usage(appUsage);
+ 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))
+ fatalError( "Bad PID: %s\n", strerror(errno));
+ pid = strtol(*argv, NULL, 0);
+ if (kill(pid, sig) != 0)
+ fatalError( "Could not kill pid '%d': %s\n", pid, strerror(errno));
+ 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 = findPidByName( *argv);
+ if (!pidList) {
+ all_found = FALSE;
+ errorMsg( "%s: no process killed\n", *argv);
+ }
+
+ for(; pidList && *pidList!=0; pidList++) {
+ if (*pidList==myPid)
+ continue;
+ if (kill(*pidList, sig) != 0)
+ fatalError( "Could not kill pid '%d': %s\n", *pidList, strerror(errno));
+ }
+ /* Note that we don't bother to free the memory
+ * allocated in findPidByName(). It will be freed
+ * upon exit, so we can save a byte or two */
+ argv++;
}
- argv++;
- argc--;
+ exit (all_found);
}
- if ( had_error )
- return -1;
- else
- return 0;
+#endif
+
+ exit(TRUE);
+
+
+ end:
+ fatalError( "bad signal name: %s\n", *argv);
}
projects / oweals / busybox.git / blobdiff