* 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 <string.h>
#include <unistd.h>
+#include "busybox.h"
-#define KILL 0
-#define KILLALL 1
-
-struct signal_name {
- const char *name;
- int number;
-};
-
-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
-#ifdef SIGIOT
- { "IOT", SIGIOT }, /* 6, same as SIGABRT */
-#endif
-#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}
-};
+#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(applet_name, "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;
+ }
+
+#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:
+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 {
- 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));
+ 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++;
}
- exit (all_found);
}
#endif
-
- exit(TRUE);
-
-
- end:
- fatalError( "bad signal name: %s\n", *argv);
+ return errors;
}
projects / oweals / busybox.git / blobdiff