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#include <u.h>
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#include <libc.h>
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#include <venti.h>
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VtConn*
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vtdial(char *addr)
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{
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	char *na;
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	int fd;
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	VtConn *z;
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	if(addr == nil)
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		addr = getenv("venti");
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	if(addr == nil)
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		addr = "$venti";
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	na = netmkaddr(addr, "tcp", "venti");
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	if((fd = dial(na, nil, nil, nil)) < 0)
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		return nil;
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	z = vtconn(fd, fd);
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	if(z)
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		strecpy(z->addr, z->addr+sizeof z->addr, na);
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	return z;
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}