Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / i386 / interface / syslinux / comboot_resolv.c

diff --git a/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_resolv.c b/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_resolv.c
new file mode 100644 (file)
index 0000000..03bbfd0
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/i386/interface/syslinux/comboot_resolv.c
@@ -0,0 +1,61 @@
+#include <errno.h>
+#include <comboot.h>
+#include <ipxe/in.h>
+#include <ipxe/list.h>
+#include <ipxe/process.h>
+#include <ipxe/resolv.h>
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+struct comboot_resolver {
+       struct interface intf;
+       int rc;
+       struct in_addr addr;
+};
+
+static void comboot_resolv_close ( struct comboot_resolver *comboot_resolver,
+                                  int rc ) {
+       comboot_resolver->rc = rc;
+       intf_shutdown ( &comboot_resolver->intf, rc );
+}
+
+static void comboot_resolv_done ( struct comboot_resolver *comboot_resolver,
+                                 struct sockaddr *sa ) {
+       struct sockaddr_in *sin;
+
+       if ( sa->sa_family == AF_INET ) {
+               sin = ( ( struct sockaddr_in * ) sa );
+               comboot_resolver->addr = sin->sin_addr;
+       }
+}
+
+static struct interface_operation comboot_resolv_op[] = {
+       INTF_OP ( intf_close, struct comboot_resolver *, comboot_resolv_close ),
+       INTF_OP ( resolv_done, struct comboot_resolver *, comboot_resolv_done ),
+};
+
+static struct interface_descriptor comboot_resolv_desc =
+       INTF_DESC ( struct comboot_resolver, intf, comboot_resolv_op );
+
+static struct comboot_resolver comboot_resolver = {
+       .intf = INTF_INIT ( comboot_resolv_desc ),
+};
+
+int comboot_resolv ( const char *name, struct in_addr *address ) {
+       int rc;
+
+       comboot_resolver.rc = -EINPROGRESS;
+       comboot_resolver.addr.s_addr = 0;
+
+       if ( ( rc = resolv ( &comboot_resolver.intf, name, NULL ) ) != 0 )
+               return rc;
+
+       while ( comboot_resolver.rc == -EINPROGRESS )
+               step();
+
+       if ( ! comboot_resolver.addr.s_addr )
+               return -EAFNOSUPPORT;
+
+       *address = comboot_resolver.addr;
+       return comboot_resolver.rc;
+}