- (djm) Import getrrsetbyname() function from OpenBSD libc (for DNS support)

1 files changed, 99 insertions, 0 deletions

diff --git a/openbsd-compat/getrrsetbyname.h b/openbsd-compat/getrrsetbyname.h
new file mode 100644
index 000000000..048280192
--- /dev/null
+++ b/openbsd-compat/getrrsetbyname.h
@@ -0,0 +1,99 @@
+/* $OpenBSD: getrrsetbyname.c,v 1.4 2001/08/16 18:16:43 ho Exp $ */
+
+/*
+ * Copyright (c) 2001 Jakob Schlyter. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Portions Copyright (c) 1999-2001 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _GETRRSETBYNAME_H
+#define _GETRRSETBYNAME_H
+
+#include "config.h"
+
+#ifndef HAVE_GETRRSETBYNAME
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <netdb.h>
+#include <resolv.h>
+
+/*
+ * Flags for getrrsetbyname()
+ */
+#ifndef RRSET_VALIDATED
+# define RRSET_VALIDATED        1
+#endif
+
+/*
+ * Return codes for getrrsetbyname()
+ */
+#ifndef ERRSET_SUCCESS
+# define ERRSET_SUCCESS         0
+# define ERRSET_NOMEMORY        1
+# define ERRSET_FAIL            2
+# define ERRSET_INVAL           3
+# define ERRSET_NONAME          4
+# define ERRSET_NODATA          5
+#endif
+
+struct rdatainfo {
+        unsigned int            rdi_length;     /* length of data */
+        unsigned char           *rdi_data;      /* record data */
+};
+
+struct rrsetinfo {
+        unsigned int            rri_flags;      /* RRSET_VALIDATED ... */
+        unsigned int            rri_rdclass;    /* class number */
+        unsigned int            rri_rdtype;     /* RR type number */
+        unsigned int            rri_ttl;        /* time to live */
+        unsigned int            rri_nrdatas;    /* size of rdatas array */
+        unsigned int            rri_nsigs;      /* size of sigs array */
+        char                    *rri_name;      /* canonical name */
+        struct rdatainfo        *rri_rdatas;    /* individual records */
+        struct rdatainfo        *rri_sigs;      /* individual signatures */
+};
+
+int             getrrsetbyname(const char *, unsigned int, unsigned int, unsigned int, struct rrsetinfo **);
+void            freerrset(struct rrsetinfo *);
+
+#endif /* HAVE_GETRRSETBYNAME */
+#endif /* _GETRRSETBYNAME_H */