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+/*
+ * 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.
+ *
+ * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
+ * - added Native Language Support
+ *
+ * 1999-11-13 aeb Accept signal numers 128+s.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h> /* for isdigit() */
+#include <unistd.h>
+#include <signal.h>
+
+#include "c.h"
+#include "kill.h"
+#include "nls.h"
+#include "closestream.h"
+#include "strutils.h"
+
+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
+};
+
+extern char *mybasename(char *);
+
+static int arg_to_signum (char *arg, int mask);
+static void nosig (char *name);
+static void printsig (int sig);
+static void printsignals (FILE *fp);
+static int usage (int status);
+static int kill_verbose (char *procname, int pid, int sig);
+
+static char *progname;
+
+#ifdef HAVE_SIGQUEUE
+static int use_sigval;
+static union sigval sigdata;
+#endif
+
+int main (int argc, char *argv[])
+{
+ int errors, numsig, pid;
+ char *ep, *arg, *p;
+ int do_pid, do_kill, check_all;
+ int *pids, *ip;
+
+ progname = argv[0];
+ if ((p = strrchr(progname, '/')) != NULL)
+ progname = p+1;
+
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+ atexit(close_stdout);
+
+ numsig = SIGTERM;
+ do_pid = (! strcmp (progname, "pid")); /* Yecch */
+ 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, "--")) {
+ argc--, argv++;
+ break;
+ }
+ if (! strcmp (arg, "-v") || ! strcmp (arg, "-V") ||
+ ! strcmp (arg, "--version")) {
+ printf(_("%s from %s\n"), progname, PACKAGE_STRING);
+ 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, accept "kill -l $?" */
+ arg = argv[1];
+ if ((numsig = arg_to_signum (arg, 1)) < 0) {
+ fprintf (stderr, _("%s: unknown signal %s\n"), progname, 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)) < 0) {
+ nosig (arg);
+ return 1;
+ }
+ continue;
+ }
+ if (! strcmp (arg, "-q")) {
+ if (argc < 2)
+ return usage (1);
+ argc--, argv++;
+ arg = *argv;
+#ifdef HAVE_SIGQUEUE
+ sigdata.sival_int = strtos32_or_err(arg, _("invalid sigval argument"));
+ use_sigval = 1;
+#endif
+ 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).
+ In case of doubt POSIX tells us to assume a signal.
+ If a signal has been parsed, assume it's a pid, break */
+ if (do_kill)
+ break;
+ arg++;
+ if ((numsig = arg_to_signum (arg, 0)) < 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"),
+ progname, arg);
+ continue;
+ }
+ for (ip = pids; *ip >= 0; ip++)
+ errors += kill_verbose (arg, *ip, numsig);
+ free (pids);
+ }
+ }
+ return (errors);
+}
+
+#ifdef SIGRTMIN
+static int rtsig_to_signum(char *sig)
+{
+ int num, maxi = 0;
+ char *ep = NULL;
+
+ if (strncasecmp(sig, "min+", 4) == 0)
+ sig += 4;
+ else if (strncasecmp(sig, "max-", 4) == 0) {
+ sig += 4;
+ maxi = 1;
+ }
+
+ if (!isdigit(*sig))
+ return -1;
+
+ errno = 0;
+ num = strtol(sig, &ep, 10);
+ if (!ep || sig == ep || errno || num < 0)
+ return -1;
+
+ num = maxi ? SIGRTMAX - num : SIGRTMIN + num;
+
+ if (num < SIGRTMIN || num > SIGRTMAX)
+ return -1;
+
+ return num;
+}
+#endif
+
+static int signame_to_signum (char *sig)
+{
+ size_t n;
+
+ if (! strncasecmp (sig, "sig", 3))
+ sig += 3;
+
+#ifdef SIGRTMIN
+ /* RT signals */
+ if (!strncasecmp(sig, "rt", 2))
+ return rtsig_to_signum(sig + 2);
+#endif
+ /* Normal sugnals */
+ for (n = 0; n < ARRAY_SIZE(sys_signame); n++) {
+ if (! strcasecmp (sys_signame[n].name, sig))
+ return sys_signame[n].val;
+ }
+ return (-1);
+}
+
+static int arg_to_signum (char *arg, int maskbit)
+{
+ int numsig;
+ char *ep;
+
+ if (isdigit (*arg)) {
+ numsig = strtol (arg, &ep, 10);
+ if (numsig >= NSIG && maskbit && (numsig & 128) != 0)
+ numsig -= 128;
+ if (*ep != 0 || numsig < 0 || numsig >= NSIG)
+ return (-1);
+ return (numsig);
+ }
+ return signame_to_signum (arg);
+}
+
+static void nosig (char *name)
+{
+ fprintf (stderr, _("%s: unknown signal %s; valid signals:\n"), progname, name);
+ printsignals (stderr);
+}
+
+static void printsig (int sig)
+{
+ size_t n;
+
+ for (n = 0; n < ARRAY_SIZE(sys_signame); n++) {
+ if (sys_signame[n].val == sig) {
+ printf ("%s\n", sys_signame[n].name);
+ return;
+ }
+ }
+#ifdef SIGRTMIN
+ if (sig >= SIGRTMIN && sig <= SIGRTMAX) {
+ printf ("RT%d\n", sig - SIGRTMIN);
+ return;
+ }
+#endif
+ printf("%d\n", sig);
+}
+
+static void printsignals (FILE *fp)
+{
+ size_t n, lth, lpos = 0;
+
+ for (n = 0; n < ARRAY_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);
+ }
+#ifdef SIGRTMIN
+ fputs (" RT<N> RTMIN+<N> RTMAX-<N>", fp);
+#endif
+ fputc ('\n', fp);
+}
+
+static int usage (int status)
+{
+ FILE *fp;
+
+ fp = (status == 0 ? stdout : stderr);
+ fprintf (fp, _("usage: %s [ -s signal | -p ] [ -a ] pid ...\n"), progname);
+ fprintf (fp, _(" %s -l [ signal ]\n"), progname);
+ return status;
+}
+
+static int kill_verbose (char *procname, int pid, int sig)
+{
+ int rc;
+
+ if (sig < 0) {
+ printf ("%d\n", pid);
+ return 0;
+ }
+#ifdef HAVE_SIGQUEUE
+ if (use_sigval)
+ rc = sigqueue(pid, sig, sigdata);
+ else
+#endif
+ rc = kill (pid, sig);
+
+ if (rc < 0) {
+ fprintf (stderr, "%s ", progname);
+ perror (procname);
+ return 1;
+ }
+ return 0;
+}
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