new

src/libndb/ndbgetipaddr.c

@@ -0,0 +1,47 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include <ndb.h>
+#include <ip.h>
+
+/* return list of ip addresses for a name */
+Ndbtuple*
+ndbgetipaddr(Ndb *db, char *val)
+{
+	char *attr, *p;
+	Ndbtuple *it, *first, *last, *next;
+	Ndbs s;
+
+	/* already an IP address? */
+	attr = ipattr(val);
+	if(strcmp(attr, "ip") == 0){
+		it = ndbnew("ip", val);
+		return it;
+	}
+
+	/* look it up */
+	p = ndbgetvalue(db, &s, attr, val, "ip", &it);
+	if(p == nil)
+		return nil;
+	free(p);
+
+	/* remove the non-ip entries */
+	first = last = nil;
+	for(; it; it = next){
+		next = it->entry;
+		if(strcmp(it->attr, "ip") == 0){
+			if(first == nil)
+				first = it;
+			else
+				last->entry = it;
+			it->entry = nil;
+			it->line = first;
+			last = it;
+		} else {
+			it->entry = nil;
+			ndbfree(it);
+		}
+	}
+
+	return first;
+}