1 files changed, 39 insertions, 0 deletions
diff --git a/src/dnsstub/dns_resolve.c b/src/dnsstub/dns_resolve.c
new file mode 100644
index 0000000..f2b845c
--- /dev/null
+++ b/src/dnsstub/dns_resolve.c
@@ -0,0 +1,39 @@
+#include "iopause.h"
+#include "taia.h"
+#include "byte.h"
+#include "ip.h"
+#include "dnsresolv.h"
+
+/**
+	* @file dns_resolve.c
+	* @authors djb, fefe, feh
+	* @ref ucspi-tcp
+	* @brief high-level DNS resolve function
+  */
+
+struct dns_transmit dns_resolve_tx = {0};
+
+int dns_resolve(const char *q,const char qtype[2])
+{
+  struct taia stamp;
+  struct taia deadline;
+  char servers[QUERY_MAXIPLEN];
+  uint32 scopes[QUERY_MAXNS];
+  iopause_fd x[1];
+  int r;
+
+  if (dns_resolvconfip(servers,scopes) < 0) return DNS_INT;
+
+  if (dns_transmit_start6(&dns_resolve_tx,servers,1,q,qtype,(const char *)V6localnet,scopes) < 0) return DNS_COM;
+
+  for (;;) {
+    taia_now(&stamp);
+    taia_uint(&deadline,120);
+    taia_add(&deadline,&deadline,&stamp);
+    dns_transmit_io(&dns_resolve_tx,x,&deadline);
+    iopause(x,1,&deadline,&stamp);
+    r = dns_transmit_get(&dns_resolve_tx,x,&stamp);
+    if (r < 0) return DNS_COM;
+    if (r == 1) return 0;
+  }
+}