Initial commit

1 files changed, 37 insertions, 0 deletions

diff --git a/src/libs6dns/s6dns_message_parse.c b/src/libs6dns/s6dns_message_parse.c
new file mode 100644
index 0000000..f4af437
--- /dev/null
+++ b/src/libs6dns/s6dns_message_parse.c
@@ -0,0 +1,37 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/error.h>
+#include <s6-dns/s6dns-constants.h>
+#include <s6-dns/s6dns-message.h>
+
+int s6dns_message_parse (s6dns_message_header_t *h, char const *packet, unsigned int packetlen, s6dns_message_rr_func_t_ref f, void *data)
+{
+  s6dns_message_counts_t counts ;
+  unsigned int pos ;
+  unsigned int section ;
+  if (!s6dns_message_parse_init(h, &counts, packet, packetlen, &pos)) return 0 ;
+  switch (h->rcode)
+  {
+    case 0 : break ;
+    case 1 : return (errno = EBADMSG, 0) ;
+    case 2 : return (errno = EBUSY, 0) ;
+    case 3 : return (errno = ENOENT, 0) ;
+    case 4 : return (errno = ENOTSUP, 0) ;
+    case 5 : return (errno = ECONNREFUSED, 0) ;
+    default: return (errno = EIO, 0) ;
+  }
+  section = s6dns_message_parse_skipqd(&counts, packet, packetlen, &pos) ;
+  while (section)
+  {
+    s6dns_message_rr_t rr ;
+    if (!s6dns_message_parse_getrr(&rr, packet, packetlen, &pos)) return 0 ;
+    if (rr.rclass == S6DNS_C_IN)
+    {
+      register int r = (*f)(&rr, packet, packetlen, pos, section, data) ;
+      if (r < 1) return r ;
+    }
+    section = s6dns_message_parse_next(&counts, &rr, packet, packetlen, &pos) ;
+  }
+  return 1 ;
+}