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WebSVN – planix.SVN – Blame – /os/branches/feature_unix/sys/src/libc/port/netmkaddr.c – Rev 2

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#include <u.h>
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#include <libc.h>
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#include <ctype.h>
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/*
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 *  make an address, add the defaults
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 */
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char *
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netmkaddr(char *linear, char *defnet, char *defsrv)
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{
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	static char addr[256];
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	char *cp;
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	/*
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	 *  dump network name
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	 */
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	cp = strchr(linear, '!');
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	if(cp == 0){
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		if(defnet==0){
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			if(defsrv)
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				snprint(addr, sizeof(addr), "net!%s!%s",
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					linear, defsrv);
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			else
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				snprint(addr, sizeof(addr), "net!%s", linear);
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		}
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		else {
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			if(defsrv)
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				snprint(addr, sizeof(addr), "%s!%s!%s", defnet,
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					linear, defsrv);
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			else
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				snprint(addr, sizeof(addr), "%s!%s", defnet,
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					linear);
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		}
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		return addr;
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	}
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	/*
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	 *  if there is already a service, use it
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	 */
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	cp = strchr(cp+1, '!');
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	if(cp)
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		return linear;
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	/*
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	 *  add default service
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	 */
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	if(defsrv == 0)
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		return linear;
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	snprint(addr, sizeof(addr), "%s!%s", linear, defsrv);
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	return addr;
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}