Add original unix v6

source/s2/size.c

@@ -0,0 +1,36 @@
+/*
+	size -- determine object size
+
+*/
+
+main(argc, argv)
+char **argv;
+{
+	int buf[010], f, ac, sum;
+
+	ac = argc;
+	if (ac==1) {
+		*argv = "a.out";
+		ac++;
+		--argv;
+	}
+	while(--ac) {
+		++argv;
+		if((f=open(*argv, 0))<0) {
+			printf("%s not found\n", *argv);
+			continue;
+		}
+		read(f, buf, 0020);
+		if(buf[0]!=0411 && buf[0]!=0410 && buf[0]!=0407) {
+			printf("Bad format: %s\n", *argv);
+			close(f);
+			continue;
+		}
+		if (argc>2)
+			printf("%s: ", *argv);
+		printf("%l+%l+%l=", buf[1],buf[2],buf[3]);
+		sum = buf[1]+buf[2]+buf[3];
+		printf("%l (%o)\n", sum, sum);
+		close(f);
+	}
+}