[apple/shell_cmds.git] / killall / killall.c

/*-
 * Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org>
 * Copyright (c) 2000 Paul Saab <ps@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/usr.bin/killall/killall.c,v 1.31 2004/07/29 18:36:35 maxim Exp $");

#include <sys/param.h>
#ifndef __APPLE__
#include <sys/jail.h>
#endif /* !__APPLE__ */
#include <sys/stat.h>
#include <sys/user.h>
#include <sys/sysctl.h>
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <signal.h>
#include <regex.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <unistd.h>
#include <locale.h>

#include <getopt.h>
#define OPTIONS ("c:dej:lmst:u:vz")

static void __dead2
usage(void)
{

#ifdef __APPLE__
	fprintf(stderr, "usage: killall [-delmsvz] [-help]\n");
#else /* !__APPLE__ */
	fprintf(stderr, "usage: killall [-delmsvz] [-help] [-j jid]\n");
#endif /* __APPLE__ */
	fprintf(stderr,
	    "               [-u user] [-t tty] [-c cmd] [-SIGNAL] [cmd]...\n");
	fprintf(stderr, "At least one option or argument to specify processes must be given.\n");
	exit(1);
}

static char *
upper(const char *str)
{
	static char buf[80];
	char *s;

	strncpy(buf, str, sizeof(buf));
	buf[sizeof(buf) - 1] = '\0';
	for (s = buf; *s; s++)
		*s = toupper((unsigned char)*s);
	return buf;
}


static void
printsig(FILE *fp)
{
	const char	*const * p;
	int		cnt;
	int		offset = 0;

	for (cnt = NSIG, p = sys_signame + 1; --cnt; ++p) {
		offset += fprintf(fp, "%s ", upper(*p));
		if (offset >= 75 && cnt > 1) {
			offset = 0;
			fprintf(fp, "\n");
		}
	}
	fprintf(fp, "\n");
}

static void
nosig(char *name)
{

	warnx("unknown signal %s; valid signals:", name);
	printsig(stderr);
	exit(1);
}

/*
 * kludge_signal_args - remove any signal option (-SIGXXX, -##) from the argv array.
 */
void
kludge_signal_args(int *argc, char **argv, int *sig)
{
	int i;
	int shift = 0;
	int kludge = 1;
	char *ptr;
	const char *const *p;
	char		*ep;

	/* i = 1, skip program name */
	for (i = 1; i < *argc; i++) {
		/* Stop if we encounter either a non-option or -- */
		if (*argv[i] != '-' || strcmp(argv[i], "--") == 0)
			kludge = 0;
		ptr = argv[i] + 1;
		if (kludge && strchr(OPTIONS, *ptr) == NULL) {
			if (isalpha(*ptr)) {
				if (strcmp(ptr, "help") == 0)
					usage();
				if (strncasecmp(ptr, "sig", 3) == 0)
					ptr += 3;
				for (*sig = NSIG, p = sys_signame + 1; --*sig; ++p)
					if (strcasecmp(*p, ptr) == 0) {
						*sig = p - sys_signame;
						break;
					}
				if (!*sig)
					nosig(ptr);
			} else if (isdigit(*ptr)) {
				*sig = strtol(ptr, &ep, 10);
				if (*ep)
					errx(1, "illegal signal number: %s", ptr);
				if (*sig < 0 || *sig >= NSIG)
					nosig(ptr);
			} else
				nosig(ptr);

			shift++;
			continue;
		}

		argv[i - shift] = argv[i];
	}

	for (i = *argc - shift; i < *argc; i++) {
		argv[i] = NULL;
	}

	*argc -= shift;
}

int
main(int ac, char **av)
{
	struct kinfo_proc *procs = NULL, *newprocs;
	struct stat	sb;
	struct passwd	*pw;
	regex_t		rgx;
	regmatch_t	pmatch;
	int		i, j;
	char		buf[256];
	char		*user = NULL;
	char		*tty = NULL;
	char		*cmd = NULL;
	int		vflag = 0;
	int		sflag = 0;
	int		dflag = 0;
	int		eflag = 0;
#ifndef __APPLE__
	int		jflag = 0;
#endif /* !__APPLE__*/
	int		mflag = 0;
	int		zflag = 0;
	uid_t		uid = 0;
	dev_t		tdev = 0;
	pid_t		mypid;
#ifdef __APPLE__
	char		*thiscmd;
#else /* !__APPLE__ */
	char		thiscmd[MAXCOMLEN + 1];
#endif /* __APPLE__ */
	pid_t		thispid;
#ifndef __APPLE__
	uid_t		thisuid;
#endif /* !__APPLE__ */
	dev_t		thistdev;
	int		sig = SIGTERM;
	char		*ep;
	int		errors = 0;
#ifndef __APPLE__
	int		jid;
#endif /* !__APPLE__ */
	int		mib[4];
	size_t		miblen;
	int		st, nprocs;
	size_t		size;
	int		matched;
	int		killed = 0;
	int		ch;

	setlocale(LC_ALL, "");

	kludge_signal_args(&ac, av, &sig);

	while ((ch = getopt(ac, av, OPTIONS)) != -1) {
		switch (ch) {
		case 'c':
			cmd = optarg;
			break;
		case 'd':
			dflag++;
			break;
		case 'e':
			eflag++;
			break;
#ifndef __APPLE__
		case 'j':
			jflag++;
			jid = strtol(optarg, &ep, 10);
			if (*ep)
				errx(1, "illegal jid: %s", optarg);
			if (jail_attach(jid) == -1)
				err(1, "jail_attach(): %d", jid);
			break;
#endif /* __APPLE__ */
		case 'l':
			printsig(stdout);
			exit(0);
		case 'm':
			mflag++;
			break;
		case 's':
			sflag++;
			break;
		case 't':
			tty = optarg;
			break;
		case 'u':
			user = optarg;
			break;
		case 'v':
			vflag++;
			break;
		case 'z':
			zflag++;
			break;
		default:
			usage();
		}
	}

	ac -= optind;
	av += optind;

#ifdef __APPLE__
	if (user == NULL && tty == NULL && cmd == NULL && ac == 0)
#else /* !__APPLE__*/
	if (user == NULL && tty == NULL && cmd == NULL && !jflag && ac == 0)
#endif /* __APPLE__ */
		usage();

	if (tty) {
		if (strncmp(tty, "/dev/", 5) == 0)
			snprintf(buf, sizeof(buf), "%s", tty);
		else if (strncmp(tty, "tty", 3) == 0)
			snprintf(buf, sizeof(buf), "/dev/%s", tty);
		else
			snprintf(buf, sizeof(buf), "/dev/tty%s", tty);
		if (stat(buf, &sb) < 0)
			err(1, "stat(%s)", buf);
		if (!S_ISCHR(sb.st_mode))
			errx(1, "%s: not a character device", buf);
		tdev = sb.st_rdev;
		if (dflag)
			printf("ttydev:0x%x\n", tdev);
	}
	if (user) {
		uid = strtol(user, &ep, 10);
		if (*user == '\0' || *ep != '\0') { /* was it a number? */
			pw = getpwnam(user);
			if (pw == NULL)
				errx(1, "user %s does not exist", user);
			uid = pw->pw_uid;
			if (dflag)
				printf("uid:%d\n", uid);
		}
	} else {
		uid = getuid();
		if (uid != 0) {
			pw = getpwuid(uid);
			if (pw)
				user = pw->pw_name;
			if (dflag)
				printf("uid:%d\n", uid);
		}
	}
	size = 0;
	mib[0] = CTL_KERN;
	mib[1] = KERN_PROC;
#ifdef __APPLE__
	mib[2] = KERN_PROC_ALL;
#else /* !__APPLE__ */
	mib[2] = KERN_PROC_PROC;
#endif /* __APPLE__ */
	mib[3] = 0;
	miblen = 3;

	if (user) {
		mib[2] = eflag ? KERN_PROC_UID : KERN_PROC_RUID;
		mib[3] = uid;
		miblen = 4;
	} else if (tty) {
		mib[2] = KERN_PROC_TTY;
		mib[3] = tdev;
		miblen = 4;
	}

	st = sysctl(mib, miblen, NULL, &size, NULL, 0);
	do {
		size += size / 10;
		newprocs = realloc(procs, size);
		if (newprocs == 0) {
			if (procs)
				free(procs);
			errx(1, "could not reallocate memory");
		}
		procs = newprocs;
		st = sysctl(mib, miblen, procs, &size, NULL, 0);
	} while (st == -1 && errno == ENOMEM);
	if (st == -1)
		err(1, "could not sysctl(KERN_PROC)");
	if (size % sizeof(struct kinfo_proc) != 0) {
		fprintf(stderr, "proc size mismatch (%zu total, %zu chunks)\n",
			size, sizeof(struct kinfo_proc));
		fprintf(stderr, "userland out of sync with kernel, recompile libkvm etc\n");
		exit(1);
	}
	nprocs = size / sizeof(struct kinfo_proc);
	if (dflag)
		printf("nprocs %d\n", nprocs);
	mypid = getpid();

	for (i = 0; i < nprocs; i++) {
#ifdef __APPLE__
		if ((procs[i].kp_proc.p_stat & SZOMB) == SZOMB && !zflag)
			continue;
		thispid = procs[i].kp_proc.p_pid;

		int mib[3], argmax;
		size_t syssize;
		char *procargs, *cp;

		mib[0] = CTL_KERN;
		mib[1] = KERN_ARGMAX;

		syssize = sizeof(argmax);
		if (sysctl(mib, 2, &argmax, &syssize, NULL, 0) == -1)
			continue;

		procargs = malloc(argmax);
		if (procargs == NULL)
			continue;

		mib[0] = CTL_KERN;
		mib[1] = KERN_PROCARGS;
		mib[2] = thispid;

		syssize = (size_t)argmax;
		if (sysctl(mib, 3, procargs, &syssize, NULL, 0) == -1) {
			free(procargs);
			continue;
		}

		for (cp = procargs; cp < &procargs[syssize]; cp++) {
			if (*cp == '\0') {
				break;
			}
		}

		if (cp == &procargs[syssize]) {
			free(procargs);
			continue;
		}

		for (; cp < &procargs[syssize]; cp++) {
			if (*cp != '\0') {
				break;
			}
		}

		if (cp == &procargs[syssize]) {
			free(procargs);
			continue;
		}

		/* Strip off any path that was specified */
		for (thiscmd = cp; (cp < &procargs[syssize]) && (*cp != '\0'); cp++) {
			if (*cp == '/') {
				thiscmd = cp + 1;
			}
		}

		thistdev = procs[i].kp_eproc.e_tdev;
#else /* !__APPLE__ */
		if ((procs[i].ki_stat & SZOMB) == SZOMB && !zflag)
			continue;
		thispid = procs[i].ki_pid;
		strncpy(thiscmd, procs[i].ki_comm, MAXCOMLEN);
		thiscmd[MAXCOMLEN] = '\0';
		thistdev = procs[i].ki_tdev;
#endif /* __APPLE__ */
#ifndef __APPLE__
		if (eflag)
			thisuid = procs[i].ki_uid;	/* effective uid */
		else
			thisuid = procs[i].ki_ruid;	/* real uid */
#endif /* !__APPLE__ */

		if (thispid == mypid) {
#ifdef __APPLE__
			free(procargs);
#endif /* __APPLE__ */
			continue;
		}
		matched = 1;
#ifndef __APPLE__
		if (user) {
			if (thisuid != uid)
				matched = 0;
		}
#endif /* !__APPLE__ */
		if (tty) {
			if (thistdev != tdev)
				matched = 0;
		}
		if (cmd) {
			if (mflag) {
				if (regcomp(&rgx, cmd,
				    REG_EXTENDED|REG_NOSUB) != 0) {
					mflag = 0;
					warnx("%s: illegal regexp", cmd);
				}
			}
			if (mflag) {
				pmatch.rm_so = 0;
				pmatch.rm_eo = strlen(thiscmd);
				if (regexec(&rgx, thiscmd, 0, &pmatch,
				    REG_STARTEND) != 0)
					matched = 0;
				regfree(&rgx);
			} else {
				if (strncmp(thiscmd, cmd, MAXCOMLEN) != 0)
					matched = 0;
			}
		}
#ifndef __APPLE__
		if (jflag && thispid == getpid())
			matched = 0;
#endif /* !__APPLE__ */
		if (matched == 0) {
#ifdef __APPLE__
			free(procargs);
#endif /* !__APPLE__ */
			continue;
		}
		if (ac > 0)
			matched = 0;
		for (j = 0; j < ac; j++) {
			if (mflag) {
				if (regcomp(&rgx, av[j],
				    REG_EXTENDED|REG_NOSUB) != 0) {
					mflag = 0;
					warnx("%s: illegal regexp", av[j]);
				}
			}
			if (mflag) {
				pmatch.rm_so = 0;
				pmatch.rm_eo = strlen(thiscmd);
				if (regexec(&rgx, thiscmd, 0, &pmatch,
				    REG_STARTEND) == 0)
					matched = 1;
				regfree(&rgx);
			} else {
				if (strcmp(thiscmd, av[j]) == 0)
					matched = 1;
			}
			if (matched)
				break;
		}
		if (matched == 0) {
#ifdef __APPLE__
			free(procargs);
#endif /* __APPLE__ */
			continue;
		}
		if (dflag)
#ifdef __APPLE__
			printf("sig:%d, cmd:%s, pid:%d, dev:0x%x\n", sig,
			    thiscmd, thispid, thistdev);
#else /* !__APPLE__ */
			printf("sig:%d, cmd:%s, pid:%d, dev:0x%x uid:%d\n", sig,
			    thiscmd, thispid, thistdev, thisuid);
#endif /* __APPLE__ */

		if (vflag || sflag)
			printf("kill -%s %d\n", upper(sys_signame[sig]),
			    thispid);

		killed++;
		if (!dflag && !sflag) {
			if (kill(thispid, sig) < 0 /* && errno != ESRCH */ ) {
				warn("warning: kill -%s %d",
				    upper(sys_signame[sig]), thispid);
				errors = 1;
			}
		}
#ifdef __APPLE__
		free(procargs);
#endif /* __APPLE__ */
	}
	if (killed == 0) {
		fprintf(stderr, "No matching processes %swere found\n",
		    getuid() != 0 ? "belonging to you " : "");
		errors = 1;
	}
	exit(errors);
}
Commit	Line	Data
c0fcf4e1 A	1	/*-
	2	* Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org>
	3	* Copyright (c) 2000 Paul Saab <ps@FreeBSD.org>
	4	* All rights reserved.
	5	*
	6	* Redistribution and use in source and binary forms, with or without
	7	* modification, are permitted provided that the following conditions
	8	* are met:
	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.
	14	*
	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
	25	* SUCH DAMAGE.
c0fcf4e1 A	26	*/
	27
	28	#include <sys/cdefs.h>
e1a085ba A	29	__FBSDID("$FreeBSD: src/usr.bin/killall/killall.c,v 1.31 2004/07/29 18:36:35 maxim Exp $");
e1a085ba A	30
c0fcf4e1	31	#include <sys/param.h>
e1a085ba A	32	#ifndef __APPLE__
	33	#include <sys/jail.h>
	34	#endif /* !__APPLE__ */
c0fcf4e1 A	35	#include <sys/stat.h>
	36	#include <sys/user.h>
	37	#include <sys/sysctl.h>
	38	#include <fcntl.h>
	39	#include <dirent.h>
	40	#include <stdio.h>
	41	#include <stdlib.h>
	42	#include <string.h>
	43	#include <pwd.h>
	44	#include <signal.h>
	45	#include <regex.h>
	46	#include <ctype.h>
	47	#include <err.h>
	48	#include <errno.h>
	49	#include <unistd.h>
e1a085ba	50	#include <locale.h>
c0fcf4e1	51
ddb4a88b A	52	#include <getopt.h>
	53	#define OPTIONS ("c:dej:lmst:u:vz")
	54
e1a085ba	55	static void __dead2
c0fcf4e1 A	56	usage(void)
	57	{
	58
e1a085ba A	59	#ifdef __APPLE__
	60	fprintf(stderr, "usage: killall [-delmsvz] [-help]\n");
	61	#else /* !__APPLE__ */
	62	fprintf(stderr, "usage: killall [-delmsvz] [-help] [-j jid]\n");
	63	#endif /* __APPLE__ */
	64	fprintf(stderr,
	65	" [-u user] [-t tty] [-c cmd] [-SIGNAL] [cmd]...\n");
c0fcf4e1 A	66	fprintf(stderr, "At least one option or argument to specify processes must be given.\n");
	67	exit(1);
	68	}
	69
	70	static char *
	71	upper(const char *str)
	72	{
	73	static char buf[80];
	74	char *s;
	75
	76	strncpy(buf, str, sizeof(buf));
	77	buf[sizeof(buf) - 1] = '\0';
	78	for (s = buf; *s; s++)
e1a085ba	79	s = toupper((unsigned char)s);
c0fcf4e1 A	80	return buf;
	81	}
	82
	83
	84	static void
	85	printsig(FILE *fp)
	86	{
	87	const char const p;
	88	int cnt;
	89	int offset = 0;
	90
	91	for (cnt = NSIG, p = sys_signame + 1; --cnt; ++p) {
	92	offset += fprintf(fp, "%s ", upper(*p));
	93	if (offset >= 75 && cnt > 1) {
	94	offset = 0;
	95	fprintf(fp, "\n");
	96	}
	97	}
	98	fprintf(fp, "\n");
	99	}
	100
	101	static void
	102	nosig(char *name)
	103	{
	104
	105	warnx("unknown signal %s; valid signals:", name);
	106	printsig(stderr);
	107	exit(1);
	108	}
	109
ddb4a88b A	110	/*
	111	* kludge_signal_args - remove any signal option (-SIGXXX, -##) from the argv array.
	112	*/
	113	void
	114	kludge_signal_args(int argc, char argv, int sig)
	115	{
	116	int i;
	117	int shift = 0;
	118	int kludge = 1;
	119	char *ptr;
	120	const char const p;
	121	char *ep;
	122
	123	/* i = 1, skip program name */
	124	for (i = 1; i < *argc; i++) {
	125	/* Stop if we encounter either a non-option or -- */
	126	if (*argv[i] != '-' \|\| strcmp(argv[i], "--") == 0)
	127	kludge = 0;
	128	ptr = argv[i] + 1;
	129	if (kludge && strchr(OPTIONS, *ptr) == NULL) {
	130	if (isalpha(*ptr)) {
	131	if (strcmp(ptr, "help") == 0)
	132	usage();
	133	if (strncasecmp(ptr, "sig", 3) == 0)
	134	ptr += 3;
	135	for (sig = NSIG, p = sys_signame + 1; --sig; ++p)
	136	if (strcasecmp(*p, ptr) == 0) {
	137	*sig = p - sys_signame;
	138	break;
	139	}
	140	if (!*sig)
	141	nosig(ptr);
	142	} else if (isdigit(*ptr)) {
	143	*sig = strtol(ptr, &ep, 10);
	144	if (*ep)
	145	errx(1, "illegal signal number: %s", ptr);
	146	if (sig < 0 \|\| sig >= NSIG)
	147	nosig(ptr);
	148	} else
	149	nosig(ptr);
	150
	151	shift++;
	152	continue;
	153	}
	154
	155	argv[i - shift] = argv[i];
	156	}
	157
	158	for (i = argc - shift; i < argc; i++) {
	159	argv[i] = NULL;
	160	}
	161
	162	*argc -= shift;
	163	}
	164
c0fcf4e1 A	165	int
	166	main(int ac, char **av)
	167	{
	168	struct kinfo_proc procs = NULL, newprocs;
	169	struct stat sb;
	170	struct passwd *pw;
	171	regex_t rgx;
	172	regmatch_t pmatch;
	173	int i, j;
	174	char buf[256];
	175	char *user = NULL;
	176	char *tty = NULL;
	177	char *cmd = NULL;
	178	int vflag = 0;
	179	int sflag = 0;
	180	int dflag = 0;
e1a085ba A	181	int eflag = 0;
	182	#ifndef __APPLE__
	183	int jflag = 0;
	184	#endif /* !__APPLE__*/
c0fcf4e1	185	int mflag = 0;
e1a085ba	186	int zflag = 0;
c0fcf4e1 A	187	uid_t uid = 0;
c0fcf4e1 A	188	dev_t tdev = 0;
e1a085ba A	189	pid_t mypid;
e1a085ba A	190	#ifdef __APPLE__
9bafe280	191	char *thiscmd;
e1a085ba A	192	#else /* !__APPLE__ */
	193	char thiscmd[MAXCOMLEN + 1];
	194	#endif /* __APPLE__ */
c0fcf4e1	195	pid_t thispid;
e1a085ba	196	#ifndef __APPLE__
c0fcf4e1	197	uid_t thisuid;
e1a085ba	198	#endif /* !__APPLE__ */
c0fcf4e1 A	199	dev_t thistdev;
c0fcf4e1 A	200	int sig = SIGTERM;
c0fcf4e1 A	201	char *ep;
c0fcf4e1 A	202	int errors = 0;
e1a085ba A	203	#ifndef __APPLE__
	204	int jid;
	205	#endif /* !__APPLE__ */
c0fcf4e1 A	206	int mib[4];
	207	size_t miblen;
	208	int st, nprocs;
	209	size_t size;
	210	int matched;
	211	int killed = 0;
ddb4a88b	212	int ch;
c0fcf4e1	213
e1a085ba A	214	setlocale(LC_ALL, "");
e1a085ba A	215
ddb4a88b	216	kludge_signal_args(&ac, av, &sig);
c0fcf4e1	217
ddb4a88b A	218	while ((ch = getopt(ac, av, OPTIONS)) != -1) {
	219	switch (ch) {
	220	case 'c':
	221	cmd = optarg;
	222	break;
	223	case 'd':
	224	dflag++;
	225	break;
	226	case 'e':
	227	eflag++;
	228	break;
	229	#ifndef __APPLE__
	230	case 'j':
	231	jflag++;
	232	jid = strtol(optarg, &ep, 10);
	233	if (*ep)
	234	errx(1, "illegal jid: %s", optarg);
	235	if (jail_attach(jid) == -1)
	236	err(1, "jail_attach(): %d", jid);
	237	break;
	238	#endif /* __APPLE__ */
	239	case 'l':
c0fcf4e1 A	240	printsig(stdout);
c0fcf4e1 A	241	exit(0);
ddb4a88b A	242	case 'm':
	243	mflag++;
	244	break;
	245	case 's':
	246	sflag++;
	247	break;
	248	case 't':
	249	tty = optarg;
	250	break;
	251	case 'u':
	252	user = optarg;
c0fcf4e1	253	break;
ddb4a88b A	254	case 'v':
	255	vflag++;
	256	break;
	257	case 'z':
	258	zflag++;
	259	break;
	260	default:
	261	usage();
c0fcf4e1 A	262	}
	263	}
	264
ddb4a88b A	265	ac -= optind;
	266	av += optind;
	267
e1a085ba	268	#ifdef __APPLE__
c0fcf4e1	269	if (user == NULL && tty == NULL && cmd == NULL && ac == 0)
e1a085ba A	270	#else /* !__APPLE__*/
	271	if (user == NULL && tty == NULL && cmd == NULL && !jflag && ac == 0)
	272	#endif /* __APPLE__ */
c0fcf4e1 A	273	usage();
	274
	275	if (tty) {
	276	if (strncmp(tty, "/dev/", 5) == 0)
	277	snprintf(buf, sizeof(buf), "%s", tty);
	278	else if (strncmp(tty, "tty", 3) == 0)
	279	snprintf(buf, sizeof(buf), "/dev/%s", tty);
	280	else
	281	snprintf(buf, sizeof(buf), "/dev/tty%s", tty);
	282	if (stat(buf, &sb) < 0)
	283	err(1, "stat(%s)", buf);
	284	if (!S_ISCHR(sb.st_mode))
	285	errx(1, "%s: not a character device", buf);
	286	tdev = sb.st_rdev;
	287	if (dflag)
	288	printf("ttydev:0x%x\n", tdev);
	289	}
	290	if (user) {
	291	uid = strtol(user, &ep, 10);
e1a085ba	292	if (user == '\0' \|\| ep != '\0') { /* was it a number? */
c0fcf4e1 A	293	pw = getpwnam(user);
	294	if (pw == NULL)
	295	errx(1, "user %s does not exist", user);
	296	uid = pw->pw_uid;
	297	if (dflag)
	298	printf("uid:%d\n", uid);
	299	}
	300	} else {
	301	uid = getuid();
	302	if (uid != 0) {
	303	pw = getpwuid(uid);
	304	if (pw)
	305	user = pw->pw_name;
	306	if (dflag)
	307	printf("uid:%d\n", uid);
	308	}
	309	}
	310	size = 0;
	311	mib[0] = CTL_KERN;
	312	mib[1] = KERN_PROC;
e1a085ba	313	#ifdef __APPLE__
c0fcf4e1	314	mib[2] = KERN_PROC_ALL;
e1a085ba A	315	#else /* !__APPLE__ */
	316	mib[2] = KERN_PROC_PROC;
	317	#endif /* __APPLE__ */
c0fcf4e1 A	318	mib[3] = 0;
	319	miblen = 3;
	320
e1a085ba A	321	if (user) {
e1a085ba A	322	mib[2] = eflag ? KERN_PROC_UID : KERN_PROC_RUID;
c0fcf4e1 A	323	mib[3] = uid;
c0fcf4e1 A	324	miblen = 4;
e1a085ba	325	} else if (tty) {
c0fcf4e1 A	326	mib[2] = KERN_PROC_TTY;
	327	mib[3] = tdev;
	328	miblen = 4;
	329	}
	330
	331	st = sysctl(mib, miblen, NULL, &size, NULL, 0);
	332	do {
	333	size += size / 10;
	334	newprocs = realloc(procs, size);
	335	if (newprocs == 0) {
	336	if (procs)
	337	free(procs);
	338	errx(1, "could not reallocate memory");
	339	}
	340	procs = newprocs;
	341	st = sysctl(mib, miblen, procs, &size, NULL, 0);
	342	} while (st == -1 && errno == ENOMEM);
	343	if (st == -1)
	344	err(1, "could not sysctl(KERN_PROC)");
	345	if (size % sizeof(struct kinfo_proc) != 0) {
e1a085ba	346	fprintf(stderr, "proc size mismatch (%zu total, %zu chunks)\n",
c0fcf4e1 A	347	size, sizeof(struct kinfo_proc));
	348	fprintf(stderr, "userland out of sync with kernel, recompile libkvm etc\n");
	349	exit(1);
	350	}
	351	nprocs = size / sizeof(struct kinfo_proc);
	352	if (dflag)
	353	printf("nprocs %d\n", nprocs);
e1a085ba	354	mypid = getpid();
c0fcf4e1 A	355
c0fcf4e1 A	356	for (i = 0; i < nprocs; i++) {
e1a085ba A	357	#ifdef __APPLE__
	358	if ((procs[i].kp_proc.p_stat & SZOMB) == SZOMB && !zflag)
	359	continue;
	360	thispid = procs[i].kp_proc.p_pid;
	361
9bafe280 A	362	int mib[3], argmax;
	363	size_t syssize;
	364	char procargs, cp;
	365
	366	mib[0] = CTL_KERN;
	367	mib[1] = KERN_ARGMAX;
	368
	369	syssize = sizeof(argmax);
e1a085ba	370	if (sysctl(mib, 2, &argmax, &syssize, NULL, 0) == -1)
9bafe280 A	371	continue;
	372
	373	procargs = malloc(argmax);
	374	if (procargs == NULL)
	375	continue;
	376
	377	mib[0] = CTL_KERN;
	378	mib[1] = KERN_PROCARGS;
e1a085ba A	379	mib[2] = thispid;
e1a085ba A	380
9bafe280 A	381	syssize = (size_t)argmax;
	382	if (sysctl(mib, 3, procargs, &syssize, NULL, 0) == -1) {
	383	free(procargs);
	384	continue;
	385	}
	386
	387	for (cp = procargs; cp < &procargs[syssize]; cp++) {
	388	if (*cp == '\0') {
	389	break;
	390	}
	391	}
e1a085ba	392
9bafe280 A	393	if (cp == &procargs[syssize]) {
	394	free(procargs);
	395	continue;
	396	}
	397
	398	for (; cp < &procargs[syssize]; cp++) {
	399	if (*cp != '\0') {
	400	break;
	401	}
	402	}
	403
	404	if (cp == &procargs[syssize]) {
	405	free(procargs);
	406	continue;
	407	}
	408
	409	/* Strip off any path that was specified */
	410	for (thiscmd = cp; (cp < &procargs[syssize]) && (*cp != '\0'); cp++) {
e1a085ba A	411	if (*cp == '/') {
e1a085ba A	412	thiscmd = cp + 1;
9bafe280 A	413	}
9bafe280 A	414	}
9bafe280	415
c0fcf4e1	416	thistdev = procs[i].kp_eproc.e_tdev;
e1a085ba A	417	#else /* !__APPLE__ */
	418	if ((procs[i].ki_stat & SZOMB) == SZOMB && !zflag)
	419	continue;
	420	thispid = procs[i].ki_pid;
	421	strncpy(thiscmd, procs[i].ki_comm, MAXCOMLEN);
	422	thiscmd[MAXCOMLEN] = '\0';
	423	thistdev = procs[i].ki_tdev;
	424	#endif /* __APPLE__ */
	425	#ifndef __APPLE__
	426	if (eflag)
	427	thisuid = procs[i].ki_uid; /* effective uid */
	428	else
	429	thisuid = procs[i].ki_ruid; /* real uid */
	430	#endif /* !__APPLE__ */
c0fcf4e1	431
e1a085ba A	432	if (thispid == mypid) {
	433	#ifdef __APPLE__
	434	free(procargs);
	435	#endif /* __APPLE__ */
	436	continue;
	437	}
c0fcf4e1	438	matched = 1;
e1a085ba	439	#ifndef __APPLE__
c0fcf4e1 A	440	if (user) {
	441	if (thisuid != uid)
	442	matched = 0;
	443	}
e1a085ba	444	#endif /* !__APPLE__ */
c0fcf4e1 A	445	if (tty) {
	446	if (thistdev != tdev)
	447	matched = 0;
	448	}
	449	if (cmd) {
	450	if (mflag) {
	451	if (regcomp(&rgx, cmd,
	452	REG_EXTENDED\|REG_NOSUB) != 0) {
	453	mflag = 0;
	454	warnx("%s: illegal regexp", cmd);
	455	}
	456	}
	457	if (mflag) {
	458	pmatch.rm_so = 0;
	459	pmatch.rm_eo = strlen(thiscmd);
	460	if (regexec(&rgx, thiscmd, 0, &pmatch,
	461	REG_STARTEND) != 0)
	462	matched = 0;
	463	regfree(&rgx);
	464	} else {
	465	if (strncmp(thiscmd, cmd, MAXCOMLEN) != 0)
	466	matched = 0;
	467	}
	468	}
e1a085ba A	469	#ifndef __APPLE__
	470	if (jflag && thispid == getpid())
	471	matched = 0;
	472	#endif /* !__APPLE__ */
9bafe280	473	if (matched == 0) {
e1a085ba	474	#ifdef __APPLE__
9bafe280	475	free(procargs);
e1a085ba	476	#endif /* !__APPLE__ */
c0fcf4e1	477	continue;
9bafe280	478	}
c0fcf4e1 A	479	if (ac > 0)
	480	matched = 0;
	481	for (j = 0; j < ac; j++) {
	482	if (mflag) {
	483	if (regcomp(&rgx, av[j],
	484	REG_EXTENDED\|REG_NOSUB) != 0) {
	485	mflag = 0;
	486	warnx("%s: illegal regexp", av[j]);
	487	}
	488	}
	489	if (mflag) {
	490	pmatch.rm_so = 0;
	491	pmatch.rm_eo = strlen(thiscmd);
	492	if (regexec(&rgx, thiscmd, 0, &pmatch,
	493	REG_STARTEND) == 0)
	494	matched = 1;
	495	regfree(&rgx);
	496	} else {
	497	if (strcmp(thiscmd, av[j]) == 0)
	498	matched = 1;
	499	}
	500	if (matched)
	501	break;
	502	}
9bafe280	503	if (matched == 0) {
e1a085ba	504	#ifdef __APPLE__
9bafe280	505	free(procargs);
e1a085ba	506	#endif /* __APPLE__ */
c0fcf4e1	507	continue;
9bafe280	508	}
c0fcf4e1	509	if (dflag)
e1a085ba A	510	#ifdef __APPLE__
	511	printf("sig:%d, cmd:%s, pid:%d, dev:0x%x\n", sig,
	512	thiscmd, thispid, thistdev);
	513	#else /* !__APPLE__ */
c0fcf4e1 A	514	printf("sig:%d, cmd:%s, pid:%d, dev:0x%x uid:%d\n", sig,
c0fcf4e1 A	515	thiscmd, thispid, thistdev, thisuid);
e1a085ba	516	#endif /* __APPLE__ */
c0fcf4e1 A	517
	518	if (vflag \|\| sflag)
	519	printf("kill -%s %d\n", upper(sys_signame[sig]),
	520	thispid);
	521
	522	killed++;
	523	if (!dflag && !sflag) {
	524	if (kill(thispid, sig) < 0 /* && errno != ESRCH */ ) {
e1a085ba A	525	warn("warning: kill -%s %d",
e1a085ba A	526	upper(sys_signame[sig]), thispid);
c0fcf4e1 A	527	errors = 1;
	528	}
	529	}
e1a085ba A	530	#ifdef __APPLE__
	531	free(procargs);
	532	#endif /* __APPLE__ */
c0fcf4e1 A	533	}
	534	if (killed == 0) {
	535	fprintf(stderr, "No matching processes %swere found\n",
	536	getuid() != 0 ? "belonging to you " : "");
	537	errors = 1;
	538	}
	539	exit(errors);
	540	}