1 4180d05b 2004-06-17 devnull #include <u.h>
 2 4180d05b 2004-06-17 devnull #include <libc.h>
 3 4180d05b 2004-06-17 devnull #include <authsrv.h>
 4 4180d05b 2004-06-17 devnull 
 5 4180d05b 2004-06-17 devnull static char *pbmsg = "AS protocol botch";
 6 4180d05b 2004-06-17 devnull 
 7 4180d05b 2004-06-17 devnull int
 8 4180d05b 2004-06-17 devnull _asrdresp(int fd, char *buf, int len)
 9 4180d05b 2004-06-17 devnull {
10 4180d05b 2004-06-17 devnull 	int n;
11 4180d05b 2004-06-17 devnull 	char error[64];
12 4180d05b 2004-06-17 devnull 
13 4180d05b 2004-06-17 devnull 	if(read(fd, buf, 1) != 1){
14 4180d05b 2004-06-17 devnull 		werrstr(pbmsg);
15 4180d05b 2004-06-17 devnull 		return -1;
16 4180d05b 2004-06-17 devnull 	}
17 4180d05b 2004-06-17 devnull 
18 4180d05b 2004-06-17 devnull 	n = len;
19 4180d05b 2004-06-17 devnull 	switch(buf[0]){
20 4180d05b 2004-06-17 devnull 	case AuthOK:
21 4180d05b 2004-06-17 devnull 		if(readn(fd, buf, len) != len){
22 4180d05b 2004-06-17 devnull 			werrstr(pbmsg);
23 4180d05b 2004-06-17 devnull 			return -1;
24 4180d05b 2004-06-17 devnull 		}
25 4180d05b 2004-06-17 devnull 		break;
26 4180d05b 2004-06-17 devnull 	case AuthErr:
27 4180d05b 2004-06-17 devnull 		if(readn(fd, error, sizeof error) != sizeof error){
28 4180d05b 2004-06-17 devnull 			werrstr(pbmsg);
29 4180d05b 2004-06-17 devnull 			return -1;
30 4180d05b 2004-06-17 devnull 		}
31 4180d05b 2004-06-17 devnull 		error[sizeof error-1] = '\0';
32 4180d05b 2004-06-17 devnull 		werrstr("remote: %s", error);
33 4180d05b 2004-06-17 devnull 		return -1;
34 4180d05b 2004-06-17 devnull 	case AuthOKvar:
35 4180d05b 2004-06-17 devnull 		if(readn(fd, error, 5) != 5){
36 4180d05b 2004-06-17 devnull 			werrstr(pbmsg);
37 4180d05b 2004-06-17 devnull 			return -1;
38 4180d05b 2004-06-17 devnull 		}
39 4180d05b 2004-06-17 devnull 		error[5] = 0;
40 4180d05b 2004-06-17 devnull 		n = atoi(error);
41 4180d05b 2004-06-17 devnull 		if(n <= 0 || n > len){
42 4180d05b 2004-06-17 devnull 			werrstr(pbmsg);
43 4180d05b 2004-06-17 devnull 			return -1;
44 4180d05b 2004-06-17 devnull 		}
45 4180d05b 2004-06-17 devnull 		memset(buf, 0, len);
46 4180d05b 2004-06-17 devnull 		if(readn(fd, buf, n) != n){
47 4180d05b 2004-06-17 devnull 			werrstr(pbmsg);
48 4180d05b 2004-06-17 devnull 			return -1;
49 4180d05b 2004-06-17 devnull 		}
50 4180d05b 2004-06-17 devnull 		break;
51 4180d05b 2004-06-17 devnull 	default:
52 4180d05b 2004-06-17 devnull 		werrstr(pbmsg);
53 4180d05b 2004-06-17 devnull 		return -1;
54 4180d05b 2004-06-17 devnull 	}
55 4180d05b 2004-06-17 devnull 	return n;
56 4180d05b 2004-06-17 devnull }