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webfs: more leaks

--- a/sys/src/cmd/webfs/client.c

+++ b/sys/src/cmd/webfs/client.c

@@ -94,10 +94,10 @@

 			fprint(2, "try %s\n", c->url->url);

 		if(c->url->open(c, c->url) < 0){

 		Error:

+			rerrstr(e, sizeof e);

 			if(next)

 				fprint(2, "next %s (but for error)\n", next);

 			free(next);

-			rerrstr(e, sizeof e);

 			c->iobusy = 0;

 			if(r != nil)

 				r->fid->omode = -1;

@@ -106,12 +106,18 @@

 				respond(r, e);

 			return;

 		}

-		if (c->authenticate && nauth++ < 1)

-				continue;

-		if(!c->redirect)

-			break;

+		free(next);

 		next = c->redirect;

 		c->redirect = nil;

+		if(c->authenticate && nauth++ < 1){

+			if(c->url->close)

+				(*c->url->close)(c);

+			free(next);

+			next = nil;

+			continue;

+		}

+		if(next == nil)

+			break;

 		if(i==c->ctl.redirectlimit){

 			werrstr("redirect limit reached");

 			goto Error;

-- 

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