2 * Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org>
3 * Copyright (c) 2000 Paul Saab <ps@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/usr.bin/killall/killall.c,v 1.5.2.4 2001/05/19 19:22:49 phk Exp $
31 #include <sys/param.h>
33 #include <sys/sysctl.h>
47 #define PHASH_SIZE 1024
51 struct kinfo_proc *proc;
52 struct pchain *parent;
56 static struct pchain *phash[PHASH_SIZE];
58 static struct pchain *saveparents(struct kinfo_proc *procs, int nprocs,
60 static int checkparent(struct pchain *mychain, pid_t pid);
66 fprintf(stderr, "usage: %s [-l] [-v] [-m] [-sig] "
67 "[-u user] [-j jail] [-t tty] [-T] "
68 "[-c cmd] [cmd]...\n", prog);
69 fprintf(stderr, "At least one option or argument to specify "
70 "processes must be given.\n");
75 upper(const char *str)
80 strlcpy(buf, str, sizeof(buf));
81 for (s = buf; *s; s++)
82 *s = toupper((unsigned char)*s);
90 const char *const * p;
94 for (cnt = NSIG, p = sys_signame + 1; --cnt; ++p) {
95 offset += fprintf(fp, "%s ", upper(*p));
96 if (offset >= 75 && cnt > 1) {
108 warnx("unknown signal %s; valid signals:", name);
114 main(int ac, char **av)
116 struct kinfo_proc *procs = NULL, *newprocs;
117 struct pchain *mychain;
130 int jflag = 0, jailid = 0;
137 char thiscmd[MAXCOMLEN + 1];
142 const char *const *p;
157 if (strcmp(*av, "-l") == 0) {
161 if (strcmp(*av, "-help") == 0)
194 jailid = strtonum(*av, 1, INT_MAX, &errstr);
197 errx(1, "jail id is %s: %s", errstr, *av);
220 if (isalpha((unsigned char)**av)) {
221 if (strncasecmp(*av, "sig", 3) == 0)
223 for (sig = NSIG, p = sys_signame + 1;
225 if (strcasecmp(*p, *av) == 0) {
226 sig = p - sys_signame;
231 } else if (isdigit((unsigned char)**av)) {
232 sig = strtol(*av, &ep, 10);
234 errx(1, "illegal signal number: %s", *av);
235 if (sig < 0 || sig >= NSIG)
247 if (user == NULL && tty == NULL && cmd == NULL &&
248 jflag == 0 && Tflag == 0 && ac == 0) {
259 if (strncmp(tty, "/dev/", 5) == 0)
260 snprintf(buf, sizeof(buf), "%s", tty);
261 else if (strncmp(tty, "tty", 3) == 0)
262 snprintf(buf, sizeof(buf), "/dev/%s", tty);
263 else if (isdigit(tty[0]))
264 snprintf(buf, sizeof(buf), "/dev/pts/%s", tty);
266 snprintf(buf, sizeof(buf), "/dev/tty%s", tty);
267 if (stat(buf, &sb) < 0)
268 err(1, "stat(%s)", buf);
269 if (!S_ISCHR(sb.st_mode))
270 errx(1, "%s: not a character device", buf);
273 printf("ttydev:0x%x\n", tdev);
278 errx(1, "user %s does not exist", user);
281 printf("uid:%d\n", uid);
289 printf("uid:%d\n", uid);
295 mib[2] = KERN_PROC_ALL;
299 if (user && mib[2] == KERN_PROC_ALL) {
300 mib[2] = KERN_PROC_RUID;
304 if (tty && mib[2] == KERN_PROC_ALL) {
305 mib[2] = KERN_PROC_TTY;
310 st = sysctl(mib, miblen, NULL, &size, NULL, 0);
313 newprocs = realloc(procs, size);
314 if (newprocs == NULL) {
317 errx(1, "could not reallocate memory");
320 st = sysctl(mib, miblen, procs, &size, NULL, 0);
321 } while (st == -1 && errno == ENOMEM);
323 err(1, "could not sysctl(KERN_PROC)");
324 if (size % sizeof(struct kinfo_proc) != 0) {
325 fprintf(stderr, "proc size mismatch (%zu total, %zu chunks)\n",
326 size, sizeof(struct kinfo_proc));
327 fprintf(stderr, "userland out of sync with kernel, recompile libkvm etc\n");
330 nprocs = size / sizeof(struct kinfo_proc);
332 printf("nprocs %d\n", nprocs);
336 * Record parent chain if Tflag
339 mychain = saveparents(procs, nprocs, mypid);
346 for (i = 0; i < nprocs; i++) {
347 thispid = procs[i].kp_pid;
348 strncpy(thiscmd, procs[i].kp_comm, MAXCOMLEN);
349 thiscmd[MAXCOMLEN] = '\0';
350 thistdev = procs[i].kp_tdev;
351 thisuid = procs[i].kp_ruid; /* real uid */
353 if (thispid == mypid)
356 if ((int)procs[i].kp_pid < 0)
363 if (thistdev != tdev)
365 if (Tflag && checkparent(mychain, procs[i].kp_pid))
369 if (procs[i].kp_jailid != jailid)
374 if (regcomp(&rgx, cmd,
375 REG_EXTENDED|REG_NOSUB) != 0) {
377 warnx("%s: illegal regexp", cmd);
382 pmatch.rm_eo = strlen(thiscmd);
383 if (regexec(&rgx, thiscmd, 0, &pmatch,
388 if (strcmp(thiscmd, cmd) != 0)
396 for (j = 0; j < ac; j++) {
398 if (regcomp(&rgx, av[j],
399 REG_EXTENDED|REG_NOSUB) != 0) {
401 warnx("%s: illegal regexp", av[j]);
406 pmatch.rm_eo = strlen(thiscmd);
407 if (regexec(&rgx, thiscmd, 0, &pmatch,
412 if (strcmp(thiscmd, av[j]) == 0)
422 printf("sig:%d, cmd:%s, pid:%d, dev:0x%x uid:%d\n", sig,
423 thiscmd, thispid, thistdev, thisuid);
426 printf("kill -%s %d\n", upper(sys_signame[sig]),
430 if (!dflag && !sflag) {
431 if (kill(thispid, sig) < 0 /* && errno != ESRCH */ ) {
432 warn("kill -%s %d", upper(sys_signame[sig]),
438 if (!qflag && killed == 0) {
439 fprintf(stderr, "No matching processes %swere found\n",
440 getuid() != 0 ? "belonging to you " : "");
449 saveparents(struct kinfo_proc *procs, int nprocs, pid_t mypid)
451 struct pchain *rchain = NULL;
452 struct pchain *chain;
453 struct pchain *pchain;
457 for (i = 0; i < nprocs; ++i) {
458 if ((int)procs[i].kp_pid < 0)
460 hv = (int)procs[i].kp_pid & 1023;
461 chain = malloc(sizeof(*chain));
462 chain->proc = &procs[i];
463 chain->parent = NULL;
464 chain->next = phash[hv];
466 if (mypid == procs[i].kp_pid)
469 for (i = 0; i < nprocs; ++i) {
470 if ((int)procs[i].kp_pid < 0)
472 if ((int)procs[i].kp_ppid < 0)
474 hv = (int)procs[i].kp_pid & 1023;
475 for (chain = phash[hv]; chain; chain = chain->next) {
476 if (chain->proc->kp_pid == procs[i].kp_pid)
479 hv = (int)procs[i].kp_ppid & 1023;
480 for (pchain = phash[hv]; pchain; pchain = pchain->next) {
481 if (pchain->proc->kp_pid == procs[i].kp_ppid) {
483 chain->parent = pchain;
493 checkparent(struct pchain *chain, pid_t pid)
496 if (chain->proc->kp_pid == pid)
498 chain = chain->parent;