Initial commit of djbdns-1.05.tar.gz

Source was http://cr.yp.to/djbdns/djbdns-1.05.tar.gz, SHA1 2efdb3a039d0c548f40936aa9cb30829e0ce8c3d

1 files changed, 29 insertions, 0 deletions

diff --git a/dns_resolve.c b/dns_resolve.c
new file mode 100644
index 0000000..8bdea0d
--- /dev/null
+++ b/dns_resolve.c
@@ -0,0 +1,29 @@
+#include "iopause.h"
+#include "taia.h"
+#include "byte.h"
+#include "dns.h"
+
+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[64];
+  iopause_fd x[1];
+  int r;
+
+  if (dns_resolvconfip(servers) == -1) return -1;
+  if (dns_transmit_start(&dns_resolve_tx,servers,1,q,qtype,"\0\0\0\0") == -1) return -1;
+
+  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 == -1) return -1;
+    if (r == 1) return 0;
+  }
+}