1 files changed, 62 insertions, 0 deletions
diff --git a/src/rexmpp_dns.rs b/src/rexmpp_dns.rs
new file mode 100644
index 0000000..1489835
--- /dev/null
+++ b/src/rexmpp_dns.rs
@@ -0,0 +1,62 @@
+use std::os::raw::{c_int, c_void, c_char};
+use libc::*;
+use std::ptr;
+
+use super::rexmpp;
+
+type DNSQueryCB = unsafe extern "C"
+fn (s: *mut rexmpp::Rexmpp, ptr: *mut c_void, result: *mut RexmppDNSResult) -> ();
+
+extern {
+    pub fn rexmpp_dns_resolve (s: *mut rexmpp::Rexmpp,
+                               query: *const c_char,
+                               rrtype: c_int,
+                               rrclass: c_int,
+                               ptr: *mut c_void,
+                               callback: DNSQueryCB) -> c_int;
+    pub fn rexmpp_dns_process (s: *mut rexmpp::Rexmpp,
+                               read_fds: *mut fd_set,
+                               write_fds: *mut fd_set) -> c_int;
+    pub fn rexmpp_dns_fds (s: *mut rexmpp::Rexmpp,
+                           read_fds: *mut fd_set,
+                           write_fds: *mut fd_set) -> c_int;
+    pub fn rexmpp_dns_timeout (s: *mut rexmpp::Rexmpp,
+                               max_tv: *mut timespec,
+                               tv: *mut timespec) -> *mut timespec;
+}
+
+#[repr(C)]
+pub struct RexmppDNSResult {
+    pub data: *mut *mut c_void,
+    pub len: *mut c_int,
+    pub secure: bool
+}
+
+#[repr(C)]
+pub struct RexmppDNSSRV {
+    pub priority: u16,
+    pub weight: u16,
+    pub port: u16,
+    pub target: [c_char; 256]
+}
+
+
+#[no_mangle]
+pub unsafe extern "C"
+fn rexmpp_dns_result_free (result: *mut RexmppDNSResult) {
+    if (*result).data != ptr::null_mut() {
+        let mut i = 0;
+        let data_ptr: *mut *mut c_void = (*result).data;
+        while *(data_ptr.offset(i)) != ptr::null_mut() {
+            free(*(data_ptr.offset(i)));
+            i += 1;
+        }
+        free((*result).data as *mut c_void);
+        (*result).data = ptr::null_mut();
+    }
+    if (*result).len != ptr::null_mut() {
+        free((*result).len as *mut c_void);
+        (*result).len = ptr::null_mut();
+    }
+    free(result as *mut c_void);
+}