* 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
*/
-#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 <string.h>
#include <unistd.h>
+#include "busybox.h"
-static const char *kill_usage =
- "kill [-signal] process-id [process-id ...]\n\n"
- "Send a signal (default is SIGTERM) to the specified process(es).\n\n"
- "Options:\n" "\t-l\tList all signal names and numbers.\n\n";
-
-#ifdef BB_KILLALL
-static const char *killall_usage =
- "killall [-signal] process-name [process-name ...]\n\n"
- "Send 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
-
-#define KILL 0
-#define 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},
-#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}
-};
+#define KILL 0
+#define KILLALL 1
extern int kill_main(int argc, char **argv)
{
- int whichApp, sig = SIGTERM;
- const char *appUsage;
+ int whichApp, signo = SIGTERM;
+ const char *name;
+ int errors = 0;
-#ifdef BB_KILLALL
+#ifdef CONFIG_KILLALL
+ int quiet=0;
/* Figure out what we are trying to do here */
- whichApp = (strcmp(*argv, "killall") == 0)?
- KILLALL : KILL;
- appUsage = (whichApp == KILLALL)? killall_usage : kill_usage;
+ whichApp = (strcmp(bb_applet_name, "killall") == 0)? KILLALL : KILL;
#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);
- }
- 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;
- }
+ 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;
}
}
- argc--;
- argv++;
+ 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;
}
- do_it_now:
+#ifdef CONFIG_KILLALL
+ /* The -q quiet option */
+ if(argv[1][1]=='q' && argv[1][2]=='\0'){
+ quiet++;
+ argv++;
+ argc--;
+ if(argc<2 || argv[1][0] != '-'){
+ goto do_it_now;
+ }
+ }
+#endif
+
+ 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:
if (whichApp == KILL) {
/* Looks like they want to do a kill. Do that */
int pid;
if (!isdigit(**argv))
- fatalError( "Bad PID: %s\n", strerror(errno));
+ bb_error_msg_and_die( "Bad PID '%s'", *argv);
pid = strtol(*argv, NULL, 0);
- if (kill(pid, sig) != 0)
- fatalError( "Could not kill pid '%d': %s\n", pid, strerror(errno));
+ if (kill(pid, signo) != 0) {
+ bb_perror_msg( "Could not kill pid '%d'", pid);
+ errors++;
+ }
argv++;
}
- }
-#ifdef BB_KILLALL
+
+ }
+#ifdef CONFIG_KILLALL
else {
+ pid_t myPid=getpid();
/* Looks like they want to do a killall. Do that */
while (--argc >= 0) {
- pid_t* pidList;
-
- pidList = findPidByName( *argv);
- for(; pidList && pidList!=0; pidList++) {
- if (kill(*pidList, sig) != 0)
- fatalError( "Could not kill pid '%d': %s\n", *pidList, strerror(errno));
+ 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);
+ }
+ }
}
- /* 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 */
+ free(pidList);
argv++;
}
}
#endif
-
- exit(TRUE);
-
-
- end:
- fatalError( "bad signal name: %s\n", *argv);
+ return errors;
}
projects / oweals / busybox.git / blobdiff