[thirdparty/util-linux.git] / misc-utils / kill.c

/*
 * Copyright (c) 1988, 1993, 1994
 *	The Regents of the University of California.  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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 */
/*
 *  oct 5 1994 -- almost entirely re-written to allow for process names.
 *  modifications (c) salvatore valente <svalente@mit.edu>
 *  may be used / modified / distributed under the same terms as the original.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <signal.h>

#define SIZE(a)	(sizeof(a)/sizeof(a[0]))

struct signv {
	char *name;
	int val;
} sys_signame[] = {
	/* 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
};

int main (int argc, char *argv[]);
extern char *mybasename(char *);
int signame_to_signum (char *sig);
int arg_to_signum (char *arg);
void nosig (char *name);
void printsig (int sig);
void printsignals (FILE *fp);
int usage (int status);
int kill_verbose (char *procname, int pid, int sig);

extern int *get_pids (char *, int);

char version_string[] = "kill v2.0\n";
char *whoami;

int main (int argc, char *argv[])
{
    int errors, numsig, pid;
    char *ep, *arg;
    int do_pid, do_kill, check_all;
    int *pids, *ip;

    whoami = mybasename (*argv);
    numsig = SIGTERM;
    do_pid = (! strcmp (whoami, "pid"));
    do_kill = 0;
    check_all = 0;

    /*  loop through the arguments.
	actually, -a is the only option can be used with other options.
	`kill' is basically a one-option-at-most program.  */
    for (argc--, argv++; argc > 0; argc--, argv++) {
	arg = *argv;
	if (*arg != '-') {
	    break;
	}
	if (! strcmp (arg, "-u")) {
	    return usage (0);
	}
	if (! strcmp (arg, "-v")) {
	    fputs (version_string, stdout);
	    return 0;
	}
	if (! strcmp (arg, "-a")) {
	    check_all++;
	    continue;
	}
	if (! strcmp (arg, "-l")) {
	    if (argc < 2) {
		printsignals (stdout);
		return 0;
	    }
	    if (argc > 2) {
		return usage (1);
	    }
	    /* argc == 2 */
	    arg = argv[1];
	    if ((numsig = arg_to_signum (arg)) < 0) {
		fprintf (stderr, "%s: unknown signal %s\n", whoami, arg);
		return 1;
	    }
	    printsig (numsig);
	    return 0;
	}
	if (! strcmp (arg, "-p")) {
	    do_pid++;
	    if (do_kill)
		return usage (1);
	    continue;
	}
	if (! strcmp (arg, "-s")) {
	    if (argc < 2) {
		return usage (1);
	    }
	    do_kill++;
	    if (do_pid)
		return usage (1);
	    argc--, argv++;
	    arg = *argv;
	    if ((numsig = arg_to_signum (arg)) < 0) {
		nosig (arg);
		return 1;
	    }
	    continue;
	}
	/*  `arg' begins with a dash but is not a known option.
	    so it's probably something like -HUP, or -1/-n
	    try to deal with it.
	    -n could be signal n, or pid -n (i.e. process group n).
	    If a signal has been parsed, assume it's a pid, break */
	if (do_kill)
	  break;
	arg++;
	if ((numsig = arg_to_signum (arg)) < 0) {
	    return usage (1);
	}
	do_kill++;
	if (do_pid)
	    return usage (1);
	continue;
    }

    if (! *argv) {
	return usage (1);
    }
    if (do_pid) {
	numsig = -1;
    }

    /*  we're done with the options.
	the rest of the arguments should be process ids and names.
	kill them.  */
    for (errors = 0; (arg = *argv) != NULL; argv++) {
	pid = strtol (arg, &ep, 10);
	if (! *ep)
	    errors += kill_verbose (arg, pid, numsig);
	else {
	    pids = get_pids (arg, check_all);
	    if (! pids) {
		errors++;
		fprintf (stderr, "%s: can't find process \"%s\"\n",
			 whoami, arg);
		continue;
	    }
	    for (ip = pids; *ip >= 0; ip++)
		errors += kill_verbose (arg, *ip, numsig);
	    free (pids);
	}
    }
    return (errors);
}


int signame_to_signum (char *sig)
{
    int n;

    if (! strncasecmp (sig, "sig", 3))
	sig += 3;
    for (n = 0; n < SIZE(sys_signame); n++) {
	if (! strcasecmp (sys_signame[n].name, sig))
	    return sys_signame[n].val;
    }
    return (-1);
}

int arg_to_signum (char *arg)
{
    int numsig;
    char *ep;

    if (isdigit (*arg)) {
	numsig = strtol (arg, &ep, 10);
	if (*ep != 0 || numsig < 0 || numsig >= NSIG)
	    return (-1);
	return (numsig);
    }
    return (signame_to_signum (arg));
}

void nosig (char *name)
{
    fprintf (stderr, "%s: unknown signal %s; valid signals:\n", whoami, name);
    printsignals (stderr);
}

void printsig (int sig)
{
    int n;

    for (n = 0; n < SIZE(sys_signame); n++) {
	if (sys_signame[n].val == sig) {
	    printf ("%s\n", sys_signame[n].name);
	    return;
	}
    }
    printf("%d\n", sig);
}

void printsignals (FILE *fp)
{
    int n, lth;
    int lpos = 0;

    for (n = 0; n < SIZE(sys_signame); n++) {
	lth = 1+strlen(sys_signame[n].name);
	if (lpos+lth > 72) {
	    fputc ('\n', fp);
	    lpos = 0;
	} else if (lpos)
	    fputc (' ', fp);
	lpos += lth;
	fputs (sys_signame[n].name, fp);
    }
    fputc ('\n', fp);
}

int usage (int status)
{
    FILE *fp;

    fp = (status == 0 ? stdout : stderr);
    fprintf (fp, "usage: %s [ -s signal | -p ] [ -a ] pid ...\n", whoami);
    fprintf (fp, "       %s -l [ signal ]\n", whoami);
    return status;
}

int kill_verbose (char *procname, int pid, int sig)
{
    if (sig < 0) {
	printf ("%d\n", pid);
	return 0;
    }
    if (kill (pid, sig) < 0) {
	fprintf (stderr, "%s ", whoami);
	perror (procname);
	return 1;
    }
    return 0;
}
Commit	Line	Data
6dbe3af9 KZ	1	/*
	2	* Copyright (c) 1988, 1993, 1994
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33	/*
	34	* oct 5 1994 -- almost entirely re-written to allow for process names.
	35	* modifications (c) salvatore valente <svalente@mit.edu>
	36	* may be used / modified / distributed under the same terms as the original.
	37	*/
	38
	39	#include <stdio.h>
	40	#include <stdlib.h>
	41	#include <string.h>
	42	#include <ctype.h>
	43	#include <unistd.h>
	44	#include <signal.h>
	45
5c36a0eb KZ	46	#define SIZE(a) (sizeof(a)/sizeof(a[0]))
	47
	48	struct signv {
	49	char *name;
	50	int val;
	51	} sys_signame[] = {
	52	/* POSIX signals */
	53	{ "HUP", SIGHUP }, /* 1 */
	54	{ "INT", SIGINT }, /* 2 */
	55	{ "QUIT", SIGQUIT }, /* 3 */
	56	{ "ILL", SIGILL }, /* 4 */
	57	{ "ABRT", SIGABRT }, /* 6 */
	58	{ "FPE", SIGFPE }, /* 8 */
	59	{ "KILL", SIGKILL }, /* 9 */
	60	{ "SEGV", SIGSEGV }, /* 11 */
	61	{ "PIPE", SIGPIPE }, /* 13 */
	62	{ "ALRM", SIGALRM }, /* 14 */
	63	{ "TERM", SIGTERM }, /* 15 */
	64	{ "USR1", SIGUSR1 }, /* 10 (arm,i386,m68k,ppc), 30 (alpha,sparc), 16 (mips) /
	65	{ "USR2", SIGUSR2 }, /* 12 (arm,i386,m68k,ppc), 31 (alpha,sparc), 17 (mips) /
	66	{ "CHLD", SIGCHLD }, /* 17 (arm,i386,m68k,ppc), 20 (alpha,sparc), 18 (mips) /
	67	{ "CONT", SIGCONT }, /* 18 (arm,i386,m68k,ppc), 19 (alpha,sparc), 25 (mips) /
	68	{ "STOP", SIGSTOP }, /* 19 (arm,i386,m68k,ppc), 17 (alpha,sparc), 23 (mips) /
	69	{ "TSTP", SIGTSTP }, /* 20 (arm,i386,m68k,ppc), 18 (alpha,sparc), 24 (mips) /
	70	{ "TTIN", SIGTTIN }, /* 21 (arm,i386,m68k,ppc,alpha,sparc), 26 (mips) /
	71	{ "TTOU", SIGTTOU }, /* 22 (arm,i386,m68k,ppc,alpha,sparc), 27 (mips) /
	72	/* Miscellaneous other signals */
	73	#ifdef SIGTRAP
	74	{ "TRAP", SIGTRAP }, /* 5 */
	75	#endif
	76	#ifdef SIGIOT
	77	{ "IOT", SIGIOT }, /* 6, same as SIGABRT */
	78	#endif
	79	#ifdef SIGEMT
	80	{ "EMT", SIGEMT }, /* 7 (mips,alpha,sparc) /
	81	#endif
	82	#ifdef SIGBUS
	83	{ "BUS", SIGBUS }, /* 7 (arm,i386,m68k,ppc), 10 (mips,alpha,sparc) /
	84	#endif
	85	#ifdef SIGSYS
	86	{ "SYS", SIGSYS }, /* 12 (mips,alpha,sparc) /
	87	#endif
	88	#ifdef SIGSTKFLT
	89	{ "STKFLT", SIGSTKFLT }, /* 16 (arm,i386,m68k,ppc) */
	90	#endif
	91	#ifdef SIGURG
	92	{ "URG", SIGURG }, /* 23 (arm,i386,m68k,ppc), 16 (alpha,sparc), 21 (mips) /
	93	#endif
	94	#ifdef SIGIO
	95	{ "IO", SIGIO }, /* 29 (arm,i386,m68k,ppc), 23 (alpha,sparc), 22 (mips) /
	96	#endif
	97	#ifdef SIGPOLL
	98	{ "POLL", SIGPOLL }, /* same as SIGIO */
	99	#endif
	100	#ifdef SIGCLD
	101	{ "CLD", SIGCLD }, /* same as SIGCHLD (mips) */
	102	#endif
	103	#ifdef SIGXCPU
	104	{ "XCPU", SIGXCPU }, /* 24 (arm,i386,m68k,ppc,alpha,sparc), 30 (mips) /
6dbe3af9	105	#endif
5c36a0eb KZ	106	#ifdef SIGXFSZ
	107	{ "XFSZ", SIGXFSZ }, /* 25 (arm,i386,m68k,ppc,alpha,sparc), 31 (mips) /
	108	#endif
	109	#ifdef SIGVTALRM
	110	{ "VTALRM", SIGVTALRM }, /* 26 (arm,i386,m68k,ppc,alpha,sparc), 28 (mips) /
	111	#endif
	112	#ifdef SIGPROF
	113	{ "PROF", SIGPROF }, /* 27 (arm,i386,m68k,ppc,alpha,sparc), 29 (mips) /
	114	#endif
	115	#ifdef SIGPWR
	116	{ "PWR", SIGPWR }, /* 30 (arm,i386,m68k,ppc), 29 (alpha,sparc), 19 (mips) /
	117	#endif
	118	#ifdef SIGINFO
	119	{ "INFO", SIGINFO }, /* 29 (alpha) */
	120	#endif
	121	#ifdef SIGLOST
	122	{ "LOST", SIGLOST }, /* 29 (arm,i386,m68k,ppc,sparc) /
	123	#endif
	124	#ifdef SIGWINCH
	125	{ "WINCH", SIGWINCH }, /* 28 (arm,i386,m68k,ppc,alpha,sparc), 20 (mips) /
	126	#endif
	127	#ifdef SIGUNUSED
	128	{ "UNUSED", SIGUNUSED }, /* 31 (arm,i386,m68k,ppc) */
	129	#endif
	130	};
6dbe3af9 KZ	131
6dbe3af9 KZ	132	int main (int argc, char *argv[]);
fd6b7a7f	133	extern char mybasename(char );
6dbe3af9 KZ	134	int signame_to_signum (char *sig);
	135	int arg_to_signum (char *arg);
	136	void nosig (char *name);
	137	void printsig (int sig);
	138	void printsignals (FILE *fp);
	139	int usage (int status);
	140	int kill_verbose (char *procname, int pid, int sig);
	141
	142	extern int get_pids (char , int);
	143
	144	char version_string[] = "kill v2.0\n";
	145	char *whoami;
	146
	147	int main (int argc, char *argv[])
	148	{
	149	int errors, numsig, pid;
	150	char ep, arg;
	151	int do_pid, do_kill, check_all;
	152	int pids, ip;
	153
	154	whoami = mybasename (*argv);
	155	numsig = SIGTERM;
	156	do_pid = (! strcmp (whoami, "pid"));
	157	do_kill = 0;
	158	check_all = 0;
	159
	160	/* loop through the arguments.
	161	actually, -a is the only option can be used with other options.
	162	`kill' is basically a one-option-at-most program. */
	163	for (argc--, argv++; argc > 0; argc--, argv++) {
	164	arg = *argv;
	165	if (*arg != '-') {
	166	break;
	167	}
	168	if (! strcmp (arg, "-u")) {
	169	return usage (0);
	170	}
	171	if (! strcmp (arg, "-v")) {
	172	fputs (version_string, stdout);
	173	return 0;
	174	}
	175	if (! strcmp (arg, "-a")) {
	176	check_all++;
	177	continue;
	178	}
	179	if (! strcmp (arg, "-l")) {
	180	if (argc < 2) {
	181	printsignals (stdout);
	182	return 0;
	183	}
	184	if (argc > 2) {
	185	return usage (1);
	186	}
	187	/* argc == 2 */
	188	arg = argv[1];
	189	if ((numsig = arg_to_signum (arg)) < 0) {
	190	fprintf (stderr, "%s: unknown signal %s\n", whoami, arg);
	191	return 1;
	192	}
	193	printsig (numsig);
	194	return 0;
	195	}
	196	if (! strcmp (arg, "-p")) {
	197	do_pid++;
198	if (do_kill)
199	return usage (1);
200	continue;
201	}
202	if (! strcmp (arg, "-s")) {
203	if (argc < 2) {
204	return usage (1);
205	}
206	do_kill++;
207	if (do_pid)
208	return usage (1);
209	argc--, argv++;
210	arg = *argv;
211	if ((numsig = arg_to_signum (arg)) < 0) {
212	nosig (arg);
213	return 1;
214	}
215	continue;
216	}
217	/* `arg' begins with a dash but is not a known option.
fd6b7a7f KZ	218	so it's probably something like -HUP, or -1/-n
	219	try to deal with it.
	220	-n could be signal n, or pid -n (i.e. process group n).
	221	If a signal has been parsed, assume it's a pid, break */
	222	if (do_kill)
	223	break;
6dbe3af9 KZ	224	arg++;
	225	if ((numsig = arg_to_signum (arg)) < 0) {
	226	return usage (1);
	227	}
	228	do_kill++;
	229	if (do_pid)
	230	return usage (1);
	231	continue;
	232	}
	233
	234	if (! *argv) {
	235	return usage (1);
	236	}
	237	if (do_pid) {
	238	numsig = -1;
	239	}
	240
	241	/* we're done with the options.
	242	the rest of the arguments should be process ids and names.
	243	kill them. */
	244	for (errors = 0; (arg = *argv) != NULL; argv++) {
	245	pid = strtol (arg, &ep, 10);
	246	if (! *ep)
	247	errors += kill_verbose (arg, pid, numsig);
	248	else {
	249	pids = get_pids (arg, check_all);
	250	if (! pids) {
	251	errors++;
	252	fprintf (stderr, "%s: can't find process \"%s\"\n",
	253	whoami, arg);
	254	continue;
	255	}
	256	for (ip = pids; *ip >= 0; ip++)
	257	errors += kill_verbose (arg, *ip, numsig);
	258	free (pids);
	259	}
	260	}
	261	return (errors);
	262	}
	263
6dbe3af9 KZ	264
	265	int signame_to_signum (char *sig)
	266	{
	267	int n;
	268
	269	if (! strncasecmp (sig, "sig", 3))
	270	sig += 3;
5c36a0eb KZ	271	for (n = 0; n < SIZE(sys_signame); n++) {
	272	if (! strcasecmp (sys_signame[n].name, sig))
	273	return sys_signame[n].val;
6dbe3af9 KZ	274	}
	275	return (-1);
	276	}
	277
	278	int arg_to_signum (char *arg)
	279	{
	280	int numsig;
	281	char *ep;
	282
	283	if (isdigit (*arg)) {
	284	numsig = strtol (arg, &ep, 10);
	285	if (*ep != 0 \|\| numsig < 0 \|\| numsig >= NSIG)
	286	return (-1);
	287	return (numsig);
	288	}
	289	return (signame_to_signum (arg));
	290	}
	291
	292	void nosig (char *name)
	293	{
	294	fprintf (stderr, "%s: unknown signal %s; valid signals:\n", whoami, name);
	295	printsignals (stderr);
	296	}
	297
	298	void printsig (int sig)
	299	{
5c36a0eb KZ	300	int n;
	301
	302	for (n = 0; n < SIZE(sys_signame); n++) {
	303	if (sys_signame[n].val == sig) {
	304	printf ("%s\n", sys_signame[n].name);
	305	return;
	306	}
	307	}
	308	printf("%d\n", sig);
6dbe3af9 KZ	309	}
	310
	311	void printsignals (FILE *fp)
	312	{
5c36a0eb KZ	313	int n, lth;
5c36a0eb KZ	314	int lpos = 0;
6dbe3af9	315
5c36a0eb KZ	316	for (n = 0; n < SIZE(sys_signame); n++) {
	317	lth = 1+strlen(sys_signame[n].name);
	318	if (lpos+lth > 72) {
6dbe3af9	319	fputc ('\n', fp);
5c36a0eb KZ	320	lpos = 0;
5c36a0eb KZ	321	} else if (lpos)
6dbe3af9	322	fputc (' ', fp);
5c36a0eb KZ	323	lpos += lth;
5c36a0eb KZ	324	fputs (sys_signame[n].name, fp);
6dbe3af9	325	}
5c36a0eb	326	fputc ('\n', fp);
6dbe3af9 KZ	327	}
	328
	329	int usage (int status)
	330	{
	331	FILE *fp;
	332
	333	fp = (status == 0 ? stdout : stderr);
	334	fprintf (fp, "usage: %s [ -s signal \| -p ] [ -a ] pid ...\n", whoami);
	335	fprintf (fp, " %s -l [ signal ]\n", whoami);
	336	return status;
	337	}
	338
	339	int kill_verbose (char *procname, int pid, int sig)
	340	{
	341	if (sig < 0) {
	342	printf ("%d\n", pid);
	343	return 0;
	344	}
	345	if (kill (pid, sig) < 0) {
	346	fprintf (stderr, "%s ", whoami);
	347	perror (procname);
	348	return 1;
	349	}
	350	return 0;
	351	}