gno/bin/kill/kill.c

242 lines
5.6 KiB
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.
*
* $Id: kill.c,v 1.1 1998/02/09 00:19:22 tribby Exp $
*/
/*
* Modified for GNO (Apple IIGS) by Dave Tribby, August 1997
*
* Constructs unacceptable to compiler are replaced using #ifndef __ORCAC__
*
* Changes not related to compiler are replaced using #ifndef __GNO__
*
* Added prototyped headers, surrounded by #ifndef __STDC__
*/
#ifndef __GNO__ /* GNO doesn't use what strings */
#ifndef lint
static char const 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 const sccsid[] = "@(#)kill.c 8.4 (Berkeley) 4/28/95";
#endif /* not lint */
#endif
#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 printsignals __P((FILE *));
int signame_to_signum __P((char *));
void usage __P((void));
/* Interface to check on how much stack space a C program uses. */
#if defined(__GNO__) && defined(__STACK_CHECK__)
#ifndef _GNO_GNO_H_
#include <gno/gno.h>
#endif
static void report_stack(void)
{
fprintf(stderr,"\n ==> %d stack bytes used <== \n", _endStackCheck());
}
#endif
int
#ifndef __STDC__
main(argc, argv)
int argc;
char *argv[];
#else
main(int argc,
char *argv[])
#endif
{
int errors, numsig, pid;
char *ep;
#if defined(__GNO__) && defined(__STACK_CHECK__)
_beginStackCheck();
atexit(report_stack);
#endif
if (argc < 2)
usage();
numsig = SIGTERM;
argc--, argv++;
if (!strcmp(*argv, "-l")) {
argc--, argv++;
if (argc > 1)
usage();
if (argc == 1) {
if (!isdigit(**argv))
usage();
numsig = strtol(*argv, &ep, 10);
if (!**argv || *ep)
errx(1, "illegal signal number: %s", *argv);
if (numsig >= 128)
numsig -= 128;
if (numsig <= 0 || numsig >= NSIG)
nosig(*argv);
printf("%s\n", sys_signame[numsig]);
exit(0);
}
printsignals(stdout);
exit(0);
}
if (!strcmp(*argv, "-s")) {
argc--, argv++;
if (argc < 1) {
warnx("option requires an argument -- s");
usage();
}
if (strcmp(*argv, "0")) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else
numsig = 0;
argc--, argv++;
} else if (**argv == '-') {
++*argv;
if (isalpha(**argv)) {
if ((numsig = signame_to_signum(*argv)) < 0)
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);
argc--, argv++;
}
if (argc == 0)
usage();
for (errors = 0; argc; argc--, 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);
}
int
#ifndef __STDC__
signame_to_signum(sig)
char *sig;
#else
signame_to_signum(char *sig)
#endif
{
int n;
if (!strncasecmp(sig, "sig", 3))
sig += 3;
for (n = 1; n < NSIG; n++) {
if (!strcasecmp(sys_signame[n], sig))
return (n);
}
return (-1);
}
void
#ifndef __STDC__
nosig(name)
char *name;
#else
nosig(char *name)
#endif
{
warnx("unknown signal %s; valid signals:", name);
printsignals(stderr);
exit(1);
}
void
#ifndef __STDC__
printsignals(fp)
FILE *fp;
#else
printsignals(FILE *fp)
#endif
{
int n;
for (n = 1; n < NSIG; n++) {
(void)fprintf(fp, "%s", sys_signame[n]);
if (n == (NSIG / 2) || n == (NSIG - 1))
(void)fprintf(fp, "\n");
else
(void)fprintf(fp, " ");
}
}
void
#ifndef __STDC__
usage()
#else
usage(void)
#endif
{
(void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
"usage: kill [-s signal_name] pid ...",
" kill -l [exit_status]",
" kill -signal_name pid ...",
" kill -signal_number pid ...");
exit(1);
}