it is time

src/cmd/auxclog.c

@@ -0,0 +1,63 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+
+char *argv0;
+
+int
+openlog(char *name)
+{
+	int fd;
+
+	fd = open(name, OWRITE);
+	if(fd < 0)
+		fd = create(name, OWRITE, DMAPPEND|0666);
+	if(fd < 0){
+		fprint(2, "%s: can't open %s: %r\n", argv0, name);
+		return -1;
+	}
+	seek(fd, 0, 2);
+	return fd;
+}
+
+void
+main(int argc, char **argv)
+{
+	Biobuf in;
+	int fd;
+	char *p, *t;
+	char buf[8192];
+
+	argv0 = argv[0];
+	if(argc < 3){
+		fprint(2, "usage: %s console logfile \n", argv0);
+		exits("usage");
+	}
+
+	fd = open(argv[1], OREAD);
+	if(fd < 0){
+		fprint(2, "%s: can't open %s: %r\n", argv0, argv[1]);
+		exits("open");
+	}
+	Binit(&in, fd, OREAD);
+
+	fd = openlog(argv[2]);
+
+	for(;;){
+		if(p = Brdline(&in, '\n')){
+			p[Blinelen(&in)-1] = 0;
+			t = ctime(time(0));
+			t[19] = 0;
+			if(fprint(fd, "%s: %s\n", t, p) < 0){
+				close(fd);
+				fd = openlog(argv[2]);
+				fprint(fd, "%s: %s\n", t, p);
+			}
+		} else if(Blinelen(&in) == 0)	// true eof
+			break;
+		else {
+			Bread(&in, buf, sizeof buf);
+		}
+	}
+	exits(0);
+}