1 be8b315d 2004-06-17 devnull #include <u.h>
 2 be8b315d 2004-06-17 devnull #include <libc.h>
 3 be8b315d 2004-06-17 devnull #include <bio.h>
 4 be8b315d 2004-06-17 devnull #include <auth.h>
 5 be8b315d 2004-06-17 devnull 
 6 be8b315d 2004-06-17 devnull /*
 7 be8b315d 2004-06-17 devnull  *  see if user is in the group noworld, i.e., has all file
 8 be8b315d 2004-06-17 devnull  *  priviledges masked with 770, and all directories with
 9 be8b315d 2004-06-17 devnull  *  771, before checking access rights
10 be8b315d 2004-06-17 devnull  */
11 be8b315d 2004-06-17 devnull int
12 be8b315d 2004-06-17 devnull noworld(char *user)
13 be8b315d 2004-06-17 devnull {
14 be8b315d 2004-06-17 devnull 	Biobuf *b;
15 be8b315d 2004-06-17 devnull 	char *p;
16 be8b315d 2004-06-17 devnull 	int n;
17 be8b315d 2004-06-17 devnull 
18 be8b315d 2004-06-17 devnull 	b = Bopen("/adm/users", OREAD);
19 be8b315d 2004-06-17 devnull 	if(b == nil)
20 be8b315d 2004-06-17 devnull 		return 0;
21 be8b315d 2004-06-17 devnull 	while((p = Brdline(b, '\n')) != nil){
22 be8b315d 2004-06-17 devnull 		p[Blinelen(b)-1] = 0;
23 be8b315d 2004-06-17 devnull 		p = strchr(p, ':');
24 be8b315d 2004-06-17 devnull 		if(p == nil)
25 be8b315d 2004-06-17 devnull 			continue;
26 be8b315d 2004-06-17 devnull 		if(strncmp(p, ":noworld:", 9) == 0){
27 be8b315d 2004-06-17 devnull 			p += 9;
28 be8b315d 2004-06-17 devnull 			break;
29 be8b315d 2004-06-17 devnull 		}
30 be8b315d 2004-06-17 devnull 	}
31 be8b315d 2004-06-17 devnull 	n = strlen(user);
32 be8b315d 2004-06-17 devnull 	while(p != nil && *p != 0){
33 be8b315d 2004-06-17 devnull 		p = strstr(p, user);
34 be8b315d 2004-06-17 devnull 		if(p == nil)
35 be8b315d 2004-06-17 devnull 			break;
36 be8b315d 2004-06-17 devnull 		if(*(p-1) == ':' || *(p-1) == ',')
37 be8b315d 2004-06-17 devnull 		if(*(p+n) == ':' || *(p+n) == ',' || *(p+n) == 0){
38 be8b315d 2004-06-17 devnull 			Bterm(b);
39 be8b315d 2004-06-17 devnull 			return 1;
40 be8b315d 2004-06-17 devnull 		}
41 be8b315d 2004-06-17 devnull 		p++;
42 be8b315d 2004-06-17 devnull 	}
43 be8b315d 2004-06-17 devnull 	Bterm(b);
44 be8b315d 2004-06-17 devnull 	return 0;
45 be8b315d 2004-06-17 devnull }