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WebSVN – planix.SVN – Blame – /os/branches/feature_posix/sys/src/ape/cmd/kill.c – Rev 2

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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <signal.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#define NSIG SIGUSR2
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char *signm[NSIG+1] = { 0,
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"SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGABRT", "SIGFPE", "SIGKILL", /* 1-7 */
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"SIGSEGV", "SIGPIPE", "SIGALRM", "SIGTERM", "SIGUR1", "SIGUSR2", /* 8-13 */
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};
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main(int argc, char **argv)
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{
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	int signo, pid, res;
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	int errlev;
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	errlev = 0;
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	if (argc <= 1) {
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	usage:
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		fprintf(stderr, "usage: kill [ -sig ] pid ...\n");
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		fprintf(stderr, "for a list of signals: kill -l\n");
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		exit(2);
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	}
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	if (*argv[1] == '-') {
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		if (argv[1][1] == 'l') {
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			int i = 0;
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			for (signo = 1; signo <= NSIG; signo++)
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				if (signm[signo]) {
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					printf("%s ", signm[signo]);
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					if (++i%8 == 0)
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						printf("\n");
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				}
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			if(i%8 !=0)
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				printf("\n");
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			exit(0);
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		} else if (isdigit(argv[1][1])) {
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			signo = atoi(argv[1]+1);
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			if (signo < 0 || signo > NSIG) {
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				fprintf(stderr, "kill: %s: number out of range\n",
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				    argv[1]);
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				exit(1);
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			}
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		} else {
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			char *name = argv[1]+1;
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			for (signo = 1; signo <= NSIG; signo++)
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				if (signm[signo] && (
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				    !strcmp(signm[signo], name)||
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				    !strcmp(signm[signo]+3, name)))
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					goto foundsig;
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			fprintf(stderr, "kill: %s: unknown signal; kill -l lists signals\n", name);
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			exit(1);
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foundsig:
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			;
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		}
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		argc--;
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		argv++;
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	} else
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		signo = SIGTERM;
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	argv++;
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	while (argc > 1) {
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		if ((**argv<'0' || **argv>'9') && **argv!='-')
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			goto usage;
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		res = kill(pid = atoi(*argv), signo);
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		if (res<0) {
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			perror("kill");
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		}
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		argc--;
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		argv++;
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	}
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	return(errlev);
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}