Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini kill implementation for busybox |
| 4 | * |
| 5 | * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 24 | #include "internal.h" |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <unistd.h> |
| 28 | #include <signal.h> |
Eric Andersen | a709317 | 1999-10-23 05:42:08 +0000 | [diff] [blame] | 29 | #include <ctype.h> |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 30 | #include <sys/stat.h> |
| 31 | #include <unistd.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 32 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 33 | static const char *kill_usage = |
| 34 | "kill [-signal] process-id [process-id ...]\n\n" |
| 35 | "Send a signal (default is SIGTERM) to the specified process(es).\n\n" |
| 36 | "Options:\n" "\t-l\tList all signal names and numbers.\n\n"; |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 37 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 38 | |
| 39 | struct signal_name { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 40 | const char *name; |
| 41 | int number; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 42 | }; |
| 43 | |
| 44 | const struct signal_name signames[] = { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 45 | {"HUP", SIGHUP}, |
| 46 | {"INT", SIGINT}, |
| 47 | {"QUIT", SIGQUIT}, |
| 48 | {"ILL", SIGILL}, |
| 49 | {"TRAP", SIGTRAP}, |
| 50 | {"ABRT", SIGABRT}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 51 | #ifndef __alpha__ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 52 | {"IOT", SIGIOT}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 53 | #endif |
Eric Andersen | e77ae3a | 1999-10-19 20:03:34 +0000 | [diff] [blame] | 54 | #if defined(__sparc__) || defined(__alpha__) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 55 | {"EMT", SIGEMT}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 56 | #else |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 57 | {"BUS", SIGBUS}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 58 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 59 | {"FPE", SIGFPE}, |
| 60 | {"KILL", SIGKILL}, |
Eric Andersen | e77ae3a | 1999-10-19 20:03:34 +0000 | [diff] [blame] | 61 | #if defined(__sparc__) || defined(__alpha__) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 62 | {"BUS", SIGBUS}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 63 | #else |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 64 | {"USR1", SIGUSR1}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 65 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 66 | {"SEGV", SIGSEGV}, |
Eric Andersen | e77ae3a | 1999-10-19 20:03:34 +0000 | [diff] [blame] | 67 | #if defined(__sparc__) || defined(__alpha__) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 68 | {"SYS", SIGSYS}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 69 | #else |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 70 | {"USR2", SIGUSR2}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 71 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 72 | {"PIPE", SIGPIPE}, |
| 73 | {"ALRM", SIGALRM}, |
| 74 | {"TERM", SIGTERM}, |
Eric Andersen | e77ae3a | 1999-10-19 20:03:34 +0000 | [diff] [blame] | 75 | #if defined(__sparc__) || defined(__alpha__) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 76 | {"URG", SIGURG}, |
| 77 | {"STOP", SIGSTOP}, |
| 78 | {"TSTP", SIGTSTP}, |
| 79 | {"CONT", SIGCONT}, |
| 80 | {"CHLD", SIGCHLD}, |
| 81 | {"TTIN", SIGTTIN}, |
| 82 | {"TTOU", SIGTTOU}, |
| 83 | {"IO", SIGIO}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 84 | # ifndef __alpha__ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 85 | {"POLL", SIGIO}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 86 | # endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 87 | {"XCPU", SIGXCPU}, |
| 88 | {"XFSZ", SIGXFSZ}, |
| 89 | {"VTALRM", SIGVTALRM}, |
| 90 | {"PROF", SIGPROF}, |
| 91 | {"WINCH", SIGWINCH}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 92 | # ifdef __alpha__ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 93 | {"INFO", SIGINFO}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 94 | # else |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 95 | {"LOST", SIGLOST}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 96 | # endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 97 | {"USR1", SIGUSR1}, |
| 98 | {"USR2", SIGUSR2}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 99 | #else |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 100 | {"STKFLT", SIGSTKFLT}, |
| 101 | {"CHLD", SIGCHLD}, |
| 102 | {"CONT", SIGCONT}, |
| 103 | {"STOP", SIGSTOP}, |
| 104 | {"TSTP", SIGTSTP}, |
| 105 | {"TTIN", SIGTTIN}, |
| 106 | {"TTOU", SIGTTOU}, |
| 107 | {"URG", SIGURG}, |
| 108 | {"XCPU", SIGXCPU}, |
| 109 | {"XFSZ", SIGXFSZ}, |
| 110 | {"VTALRM", SIGVTALRM}, |
| 111 | {"PROF", SIGPROF}, |
| 112 | {"WINCH", SIGWINCH}, |
| 113 | {"IO", SIGIO}, |
| 114 | {"POLL", SIGPOLL}, |
| 115 | {"PWR", SIGPWR}, |
| 116 | {"UNUSED", SIGUNUSED}, |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 117 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 118 | {0, 0} |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 119 | }; |
| 120 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 121 | extern int kill_main(int argc, char **argv) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 122 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 123 | int sig = SIGTERM; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 124 | |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 125 | argc--; |
| 126 | argv++; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 127 | /* Parse any options */ |
| 128 | if (argc < 1) |
| 129 | usage(kill_usage); |
| 130 | |
| 131 | while (argc > 0 && **argv == '-') { |
| 132 | while (*++(*argv)) { |
| 133 | switch (**argv) { |
| 134 | case 'l': |
| 135 | { |
| 136 | int col = 0; |
| 137 | const struct signal_name *s = signames; |
| 138 | |
| 139 | while (s->name != 0) { |
| 140 | col += |
| 141 | fprintf(stderr, "%2d) %-8s", s->number, |
| 142 | (s++)->name); |
| 143 | if (col > 60) { |
| 144 | fprintf(stderr, "\n"); |
| 145 | col = 0; |
| 146 | } |
| 147 | } |
| 148 | fprintf(stderr, "\n\n"); |
| 149 | exit(TRUE); |
| 150 | } |
| 151 | break; |
| 152 | case '-': |
| 153 | usage(kill_usage); |
| 154 | default: |
| 155 | { |
| 156 | if (isdigit(**argv)) { |
| 157 | sig = atoi(*argv); |
| 158 | if (sig < 0 || sig >= NSIG) |
| 159 | goto end; |
| 160 | else { |
| 161 | argc--; |
| 162 | argv++; |
| 163 | goto do_it_now; |
| 164 | } |
| 165 | } else { |
| 166 | const struct signal_name *s = signames; |
| 167 | |
| 168 | while (s->name != 0) { |
| 169 | if (strcasecmp(s->name, *argv) == 0) { |
| 170 | sig = s->number; |
| 171 | argc--; |
| 172 | argv++; |
| 173 | goto do_it_now; |
| 174 | } |
| 175 | s++; |
| 176 | } |
| 177 | if (s->name == 0) |
| 178 | goto end; |
| 179 | } |
| 180 | } |
| 181 | } |
| 182 | argc--; |
| 183 | argv++; |
| 184 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 185 | } |
Eric Andersen | 3cf52d1 | 1999-10-12 22:26:06 +0000 | [diff] [blame] | 186 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 187 | do_it_now: |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 188 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 189 | while (--argc >= 0) { |
| 190 | int pid; |
| 191 | struct stat statbuf; |
| 192 | char pidpath[20] = "/proc/"; |
| 193 | |
| 194 | if (!isdigit(**argv)) { |
| 195 | fprintf(stderr, "bad PID: %s\n", *argv); |
| 196 | exit(FALSE); |
| 197 | } |
| 198 | pid = atoi(*argv); |
| 199 | snprintf(pidpath, 20, "/proc/%s/stat", *argv); |
| 200 | if (stat(pidpath, &statbuf) != 0) { |
| 201 | fprintf(stderr, "kill: (%d) - No such pid\n", pid); |
| 202 | exit(FALSE); |
| 203 | } |
| 204 | fprintf(stderr, "sig = %d\n", sig); |
| 205 | if (kill(pid, sig) != 0) { |
| 206 | perror(*argv); |
| 207 | exit(FALSE); |
| 208 | } |
| 209 | argv++; |
Eric Andersen | 3cf52d1 | 1999-10-12 22:26:06 +0000 | [diff] [blame] | 210 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 211 | exit(TRUE); |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 212 | |
Eric Andersen | a709317 | 1999-10-23 05:42:08 +0000 | [diff] [blame] | 213 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame^] | 214 | end: |
| 215 | fprintf(stderr, "bad signal name: %s\n", *argv); |
| 216 | exit(TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 217 | } |