diff options
Diffstat (limited to 'bin/kill')
-rw-r--r-- | bin/kill/Makefile | 5 | ||||
-rw-r--r-- | bin/kill/kill.1 | 120 | ||||
-rw-r--r-- | bin/kill/kill.c | 144 |
3 files changed, 269 insertions, 0 deletions
diff --git a/bin/kill/Makefile b/bin/kill/Makefile new file mode 100644 index 0000000..0cea87a --- /dev/null +++ b/bin/kill/Makefile @@ -0,0 +1,5 @@ +# @(#)Makefile 8.1 (Berkeley) 5/31/93 + +PROG= kill + +.include <bsd.prog.mk> diff --git a/bin/kill/kill.1 b/bin/kill/kill.1 new file mode 100644 index 0000000..bffef49 --- /dev/null +++ b/bin/kill/kill.1 @@ -0,0 +1,120 @@ +.\" Copyright (c) 1980, 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" 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. +.\" +.\" @(#)kill.1 8.1 (Berkeley) 5/31/93 +.\" +.Dd May 31, 1993 +.Dt KILL 1 +.Os +.Sh NAME +.Nm kill +.Nd terminate or signal a process +.Sh SYNOPSIS +.Nm kill +.Op Fl signal_name +.Ar pid +\&... +.Nm kill +.Op Fl signal_number +.Ar pid +\&... +.Nm kill +.Op Fl l +.Sh DESCRIPTION +The kill utility sends the +.Dv TERM +signal to the processes specified +by the pid operand(s). +.Pp +Only the super-user may send signals to other users' processes. +.Pp +The options are as follows: +.Pp +.Bl -tag -width Ds +.It Fl l +List the signal names. +.It Fl signal_name +A symbolic signal name specifying the signal to be sent instead of the +default +.Dv TERM . +The +.Fl l +option displays the signal names. +.It Fl signal_number +A non-negative decimal integer, specifying the signal to be sent instead +of the default +.Dv TERM . +.El +.Pp +Some of the more commonly used signals: +.Bd -ragged -offset indent -compact +.Bl -column XXX TERM +.It -1 -1 (super-user broadcast to all processes, or user broadcast +to user's processes) +.It 0 0 (sh(1) only, signals all members of process group) +.It 2 INT (interrupt) +.It 3 QUIT (quit) +.It 6 ABRT (abort) +.It 9 KILL (non-catchable, non-ignorable kill) +.It 14 ALRM (alarm clock) +.It 15 TERM (software termination signal) +.El +.Ed +.Pp +.Nm Kill +is a built-in to +.Xr csh 1 ; +it allows job specifiers of the form ``%...'' as arguments +so process id's are not as often used as +.Nm kill +arguments. +See +.Xr csh 1 +for details. +.Sh SEE ALSO +.Xr csh 1 , +.Xr ps 1 , +.Xr kill 2 , +.Xr sigvec 2 +.Sh HISTORY +A +.Nm kill +command appeared in +.At v6 . +.Sh BUGS +A replacement for the command +.Dq Li kill 0 +for +.Xr csh 1 +users should be provided. diff --git a/bin/kill/kill.c b/bin/kill/kill.c new file mode 100644 index 0000000..00daeaf --- /dev/null +++ b/bin/kill/kill.c @@ -0,0 +1,144 @@ +/* + * 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. + */ + +#ifndef lint +static char copyright[] = +"@(#) Copyright (c) 1988, 1993, 1994\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)kill.c 8.3 (Berkeley) 4/2/94"; +#endif /* not lint */ + +#include <ctype.h> +#include <err.h> +#include <errno.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +void nosig __P((char *)); +void printsig __P((FILE *)); +void usage __P((void)); + +int +main(argc, argv) + int argc; + char *argv[]; +{ + const char *const *p; + int errors, numsig, pid; + char *ep; + + if (argc < 2) + usage(); + + if (!strcmp(*++argv, "-l")) { + printsig(stdout); + exit(0); + } + + numsig = SIGTERM; + if (**argv == '-') { + ++*argv; + if (isalpha(**argv)) { + if (!strncasecmp(*argv, "sig", 3)) + *argv += 3; + for (numsig = NSIG, p = sys_signame + 1; --numsig; ++p) + if (!strcasecmp(*p, *argv)) { + numsig = p - sys_signame; + break; + } + if (!numsig) + nosig(*argv); + } else if (isdigit(**argv)) { + numsig = strtol(*argv, &ep, 10); + if (!*argv || *ep) + errx(1, "illegal signal number: %s", *argv); + if (numsig <= 0 || numsig > NSIG) + nosig(*argv); + } else + nosig(*argv); + ++argv; + } + + if (!*argv) + usage(); + + for (errors = 0; *argv; ++argv) { + pid = strtol(*argv, &ep, 10); + if (!*argv || *ep) { + warnx("illegal process id: %s", *argv); + errors = 1; + } else if (kill(pid, numsig) == -1) { + warn("%s", *argv); + errors = 1; + } + } + exit(errors); +} + +void +nosig(name) + char *name; +{ + + warnx("unknown signal %s; valid signals:", name); + printsig(stderr); + exit(1); +} + +void +printsig(fp) + FILE *fp; +{ + const char *const *p; + int cnt; + + for (cnt = NSIG, p = sys_signame + 1; --cnt; ++p) { + (void)fprintf(fp, "%s ", *p); + if (cnt == NSIG / 2) + (void)fprintf(fp, "\n"); + } + (void)fprintf(fp, "\n"); +} + +void +usage() +{ + + (void)fprintf(stderr, "usage: kill [-l] [-sig] pid ...\n"); + exit(1); +} |