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 <ip.h>
 5 d957951b 2005-02-11 devnull #include <ndb.h>
 6 d957951b 2005-02-11 devnull 
 7 d957951b 2005-02-11 devnull /*
 8 d957951b 2005-02-11 devnull  *  Look for a pair with the given attribute.  look first on the same line,
 9 d957951b 2005-02-11 devnull  *  then in the whole entry.
10 d957951b 2005-02-11 devnull  */
11 d957951b 2005-02-11 devnull Ndbtuple*
12 d957951b 2005-02-11 devnull ndbfindattr(Ndbtuple *entry, Ndbtuple *line, char *attr)
13 d957951b 2005-02-11 devnull {
14 d957951b 2005-02-11 devnull 	Ndbtuple *nt;
15 d957951b 2005-02-11 devnull 
16 d957951b 2005-02-11 devnull 	/* first look on same line (closer binding) */
17 d957951b 2005-02-11 devnull 	for(nt = line; nt;){
18 d957951b 2005-02-11 devnull 		if(strcmp(attr, nt->attr) == 0)
19 d957951b 2005-02-11 devnull 			return nt;
20 d957951b 2005-02-11 devnull 		nt = nt->line;
21 d957951b 2005-02-11 devnull 		if(nt == line)
22 d957951b 2005-02-11 devnull 			break;
23 d957951b 2005-02-11 devnull 	}
24 d957951b 2005-02-11 devnull 
25 d957951b 2005-02-11 devnull 	/* search whole tuple */
26 d957951b 2005-02-11 devnull 	for(nt = entry; nt; nt = nt->entry)
27 d957951b 2005-02-11 devnull 		if(strcmp(attr, nt->attr) == 0)
28 d957951b 2005-02-11 devnull 			return nt;
29 d957951b 2005-02-11 devnull 
30 d957951b 2005-02-11 devnull 	return nil;
31 d957951b 2005-02-11 devnull }
32 d957951b 2005-02-11 devnull 
33 d957951b 2005-02-11 devnull Ndbtuple*
34 d957951b 2005-02-11 devnull ndblookval(Ndbtuple *entry, Ndbtuple *line, char *attr, char *to)
35 d957951b 2005-02-11 devnull {
36 d957951b 2005-02-11 devnull 	Ndbtuple *t;
37 d957951b 2005-02-11 devnull 
38 d957951b 2005-02-11 devnull 	t = ndbfindattr(entry, line, attr);
39 d957951b 2005-02-11 devnull 	if(t != nil){
40 d957951b 2005-02-11 devnull 		strncpy(to, t->val, Ndbvlen-1);
41 d957951b 2005-02-11 devnull 		to[Ndbvlen-1] = 0;
42 d957951b 2005-02-11 devnull 	}
43 d957951b 2005-02-11 devnull 	return t;
44 d957951b 2005-02-11 devnull }