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webcookies: create $home/lib/webcookies as 0600

--- a/sys/src/cmd/webcookies.c

+++ b/sys/src/cmd/webcookies.c

@@ -1216,6 +1216,7 @@

 main(int argc, char **argv)

 {

 	char *file, *mtpt, *home, *srv;

+	int fd;

 	file = nil;

 	srv = nil;

@@ -1255,9 +1256,12 @@

 		strcpy(file, home);

 		strcat(file, "/lib/webcookies");

 	}

-	if(access(file, AEXIST) < 0)

-		close(create(file, OWRITE, 0666));

-

+	if(access(file, AEXIST) < 0){

+		if((fd = create(file, OWRITE, 0600)) < 0)

+			sysfatal("create %s: %r", file);

+		close(fd);

+	}

+			

 	jar = readjar(file);

 	if(jar == nil)

 		sysfatal("readjar: %r");