1 #include <u.h>
2 #include <libc.h>
3 #include <bio.h>
4 
5 #define openlog auxclog_openlog	/* libc symbol on OS X */
6 
7 char *argv0;
8 
9 int
10 openlog(char *name)
11 {
12 	int fd;
13 
14 	fd = open(name, OWRITE);
15 	if(fd < 0)
16 		fd = create(name, OWRITE, DMAPPEND|0666);
17 	if(fd < 0){
18 		fprint(2, "%s: can't open %s: %r\n", argv0, name);
19 		return -1;
20 	}
21 	seek(fd, 0, 2);
22 	return fd;
23 }
24 
25 void
26 main(int argc, char **argv)
27 {
28 	Biobuf in;
29 	int fd;
30 	char *p, *t;
31 	char buf[8192];
32 
33 	argv0 = argv[0];
34 	if(argc !=  3){
35 		fprint(2, "usage: %s console logfile \n", argv0);
36 		exits("usage");
37 	}
38 
39 	if(strcmp(argv[1], "-") == 0)
40 		fd = 0;
41 	else
42 		fd = open(argv[1], OREAD);
43 	if(fd < 0){
44 		fprint(2, "%s: can't open %s: %r\n", argv0, argv[1]);
45 		exits("open");
46 	}
47 	Binit(&in, fd, OREAD);
48 
49 	fd = openlog(argv[2]);
50 
51 	for(;;){
52 		if(p = Brdline(&in, '\n')){
53 			p[Blinelen(&in)-1] = 0;
54 			t = ctime(time(0));
55 			t[19] = 0;
56 			if(fprint(fd, "%s: %s\n", t, p) < 0){
57 				close(fd);
58 				fd = openlog(argv[2]);
59 				fprint(fd, "%s: %s\n", t, p);
60 			}
61 		} else if(Blinelen(&in) == 0)	/* true eof */
62 			break;
63 		else {
64 			Bread(&in, buf, sizeof buf);
65 		}
66 	}
67 	exits(0);
68 }