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#include	"common.h"
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#include	"smtp.h"
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#include	<ndb.h>
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int
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rmtdns(char *net, char *path)
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{
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	int fd, n, nb, r;
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	char *domain, *cp, buf[Maxdomain + 5];
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	if(net == 0 || path == 0)
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		return 0;
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	domain = strdup(path);
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	cp = strchr(domain, '!');
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	if(cp){
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		*cp = 0;
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		n = cp-domain;
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	} else
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		n = strlen(domain);
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	if(*domain == '[' && domain[n-1] == ']'){ /* accept [nnn.nnn.nnn.nnn] */
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		domain[n-1] = 0;
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		r = strcmp(ipattr(domain+1), "ip");
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		domain[n-1] = ']';
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	} else
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		r = strcmp(ipattr(domain), "ip"); /* accept nnn.nnn.nnn.nnn */
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	if(r == 0){
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		free(domain);
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		return 0;
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	}
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	snprint(buf, sizeof buf, "%s/dns", net);
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	fd = open(buf, ORDWR);			/* look up all others */
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	if(fd < 0){				/* dns screw up - can't check */
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		free(domain);
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		return 0;
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	}
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	n = snprint(buf, sizeof buf, "%s all", domain);
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	free(domain);
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	seek(fd, 0, 0);
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	nb = write(fd, buf, n);
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	close(fd);
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	if(nb != n){
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		rerrstr(buf, sizeof buf);
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		if (strcmp(buf, "dns: name does not exist") == 0)
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			return -1;
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	}
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	return 0;
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}
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/*
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void
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main(int, char *argv[])
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{
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	print("return = %d\n", rmtdns("/net.alt", argv[1]));
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	exits(0);
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}
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*/