1 d957951b 2005-02-11 devnull #include <u.h>
 2 d957951b 2005-02-11 devnull #include <libc.h>
 3 d957951b 2005-02-11 devnull #include <bio.h>
 4 d957951b 2005-02-11 devnull #include <ndb.h>
 5 d957951b 2005-02-11 devnull #include <ndbhf.h>
 6 d957951b 2005-02-11 devnull 
 7 d957951b 2005-02-11 devnull /*
 8 d957951b 2005-02-11 devnull  *  look up the ip attributes 'list' for an entry that has the
 9 d957951b 2005-02-11 devnull  *  given 'attr=val' and a 'ip=' tuples.
10 d957951b 2005-02-11 devnull  *
11 d957951b 2005-02-11 devnull  *  return nil if not found.
12 d957951b 2005-02-11 devnull  */
13 d957951b 2005-02-11 devnull Ndbtuple*
14 d957951b 2005-02-11 devnull csipinfo(char *netroot, char *attr, char *val, char **list, int n)
15 d957951b 2005-02-11 devnull {
16 d957951b 2005-02-11 devnull 	Ndbtuple *t, *first, *last;
17 d957951b 2005-02-11 devnull 	int i;
18 d957951b 2005-02-11 devnull 	char line[1024];
19 d957951b 2005-02-11 devnull 	int fd;
20 d957951b 2005-02-11 devnull 	char *p, *e;
21 d957951b 2005-02-11 devnull 
22 d957951b 2005-02-11 devnull 	if(netroot)
23 d957951b 2005-02-11 devnull 		snprint(line, sizeof(line), "%s/cs", netroot);
24 d957951b 2005-02-11 devnull 	else
25 d957951b 2005-02-11 devnull 		strcpy(line, "/net/cs");
26 d957951b 2005-02-11 devnull 	fd = open(line, ORDWR);
27 d957951b 2005-02-11 devnull 	if(fd < 0)
28 d957951b 2005-02-11 devnull 		return 0;
29 d957951b 2005-02-11 devnull 	seek(fd, 0, 0);
30 d957951b 2005-02-11 devnull 	e = line + sizeof(line);
31 d957951b 2005-02-11 devnull 	p = seprint(line, e, "!ipinfo %s=%s", attr, val);
32 d957951b 2005-02-11 devnull 	for(i = 0; i < n; i++){
33 d957951b 2005-02-11 devnull 		if(*list == nil)
34 d957951b 2005-02-11 devnull 			break;
35 d957951b 2005-02-11 devnull 		p = seprint(p, e, " %s", *list++);
36 d957951b 2005-02-11 devnull 	}
37 fa325e9b 2020-01-10 cross 
38 d957951b 2005-02-11 devnull 	if(write(fd, line, strlen(line)) < 0){
39 d957951b 2005-02-11 devnull 		close(fd);
40 d957951b 2005-02-11 devnull 		return 0;
41 d957951b 2005-02-11 devnull 	}
42 d957951b 2005-02-11 devnull 	seek(fd, 0, 0);
43 d957951b 2005-02-11 devnull 
44 d957951b 2005-02-11 devnull 	first = last = 0;
45 d957951b 2005-02-11 devnull 	for(;;){
46 d957951b 2005-02-11 devnull 		n = read(fd, line, sizeof(line)-2);
47 d957951b 2005-02-11 devnull 		if(n <= 0)
48 d957951b 2005-02-11 devnull 			break;
49 d957951b 2005-02-11 devnull 		line[n] = '\n';
50 d957951b 2005-02-11 devnull 		line[n+1] = 0;
51 d957951b 2005-02-11 devnull 
52 d957951b 2005-02-11 devnull 		t = _ndbparseline(line);
53 d957951b 2005-02-11 devnull 		if(t == 0)
54 d957951b 2005-02-11 devnull 			continue;
55 d957951b 2005-02-11 devnull 		if(first)
56 d957951b 2005-02-11 devnull 			last->entry = t;
57 d957951b 2005-02-11 devnull 		else
58 d957951b 2005-02-11 devnull 			first = t;
59 d957951b 2005-02-11 devnull 		last = t;
60 d957951b 2005-02-11 devnull 
61 d957951b 2005-02-11 devnull 		while(last->entry)
62 d957951b 2005-02-11 devnull 			last = last->entry;
63 d957951b 2005-02-11 devnull 	}
64 d957951b 2005-02-11 devnull 	close(fd);
65 d957951b 2005-02-11 devnull 
66 d957951b 2005-02-11 devnull 	setmalloctag(first, getcallerpc(&netroot));
67 d957951b 2005-02-11 devnull 	return first;
68 d957951b 2005-02-11 devnull }