frogbak

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rsh.c  view on Meta::CPAN

	char **argv;
{
	extern char *optarg;
	extern int optind;
	struct passwd *pw;
	struct servent *sp;
	long omask;
	int argoff, asrsh, ch, dflag, nflag, one, pid, rem, uid;
	register char *p;
	char *args, *host, *user, *copyargs();
	void sendsig();
	char *time_message;
	int timeout;

	argoff = asrsh = dflag = nflag = 0;
	one = 1;
	host = user = NULL;
	timeout = 0;
	time_message = NULL;

	/* if called as something other than "rsh", use it as the host name */

rsh.c  view on Meta::CPAN

			    strerror(errno));
		if (setsockopt(rfd2, SOL_SOCKET, SO_DEBUG, &one,
		    sizeof(one)) < 0)
			(void)fprintf(stderr, "rsh: setsockopt: %s.\n",
			    strerror(errno));
	}

	(void)setuid(uid);
	omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGTERM));
	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
		(void)signal(SIGINT, sendsig);
	if (signal(SIGQUIT, SIG_IGN) != SIG_IGN)
		(void)signal(SIGQUIT, sendsig);
	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
		(void)signal(SIGTERM, sendsig);

	if (!nflag) {
		pid = fork();
		if (pid < 0) {
			(void)fprintf(stderr,
			    "rsh: fork: %s.\n", strerror(errno));
			exit(1);
		}
	}

rsh.c  view on Meta::CPAN

			if (cc <= 0) {
				if (errno != EWOULDBLOCK)
					readfrom &= ~(1 << rem);
			} else
				(void)write(1, buf, cc);
		}
	} while (readfrom);
}

void
sendsig(signo)
	char signo;
{
#ifdef KERBEROS
#ifdef CRYPT
	if (doencrypt)
		(void)des_write(rfd2, &signo, 1);
	else
#endif
#endif
		(void)write(rfd2, &signo, 1);

rsh.c.freebsd  view on Meta::CPAN

char dst_realm_buf[REALM_SZ], *dest_realm;
extern char *krb_realmofhost();
#endif

/*
 * rsh - remote shell
 */
int	rfd2;

char   *copyargs __P((char **));
void	sendsig __P((int));
void	talk __P((int, long, pid_t, int, int));
void	usage __P((void));
void	warning __P(());

int
main(argc, argv)
	int argc;
	char **argv;
{
	struct passwd *pw;

rsh.c.freebsd  view on Meta::CPAN

		    sizeof(one)) < 0)
			warn("setsockopt");
		if (setsockopt(rfd2, SOL_SOCKET, SO_DEBUG, &one,
		    sizeof(one)) < 0)
			warn("setsockopt");
	}

	(void)setuid(uid);
	omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGTERM));
	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
		(void)signal(SIGINT, sendsig);
	if (signal(SIGQUIT, SIG_IGN) != SIG_IGN)
		(void)signal(SIGQUIT, sendsig);
	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
		(void)signal(SIGTERM, sendsig);

	if (!nflag) {
		pid = fork();
		if (pid < 0)
			err(1, "fork");
	}

#ifdef KERBEROS
#ifdef CRYPT
	if (!doencrypt)

rsh.c.freebsd  view on Meta::CPAN

			if (cc <= 0) {
				if (errno != EWOULDBLOCK)
					FD_CLR(rem, &readfrom);
			} else
				(void)write(1, buf, cc);
		}
	} while (FD_ISSET(rfd2, &readfrom) || FD_ISSET(rem, &readfrom));
}

void
sendsig(sig)
	int sig;
{
	char signo;

	signo = sig;
#ifdef KERBEROS
#ifdef CRYPT
	if (doencrypt)
		(void)des_write(rfd2, &signo, 1);
	else