From: Stefan Metzmacher <metze@samba.org>
Date: Wed, 31 Oct 2018 15:44:11 +0000 (+0100)
Subject: librpc: add dcerpc_get_auth_length() helper function
X-Git-Tag: talloc-2.1.15~139
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7817e42d94140af8151cafa608398e4974489730;p=thirdparty%2Fsamba.git

librpc: add dcerpc_get_auth_length() helper function

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/librpc/rpc/dcerpc_util.c b/librpc/rpc/dcerpc_util.c
index 0808131dd14..6cd3e38a75a 100644
--- a/librpc/rpc/dcerpc_util.c
+++ b/librpc/rpc/dcerpc_util.c
@@ -59,6 +59,15 @@ void dcerpc_set_auth_length(DATA_BLOB *blob, uint16_t v)
 	}
 }
 
+uint16_t dcerpc_get_auth_length(const DATA_BLOB *blob)
+{
+	if (CVAL(blob->data,DCERPC_DREP_OFFSET) & DCERPC_DREP_LE) {
+		return SVAL(blob->data, DCERPC_AUTH_LEN_OFFSET);
+	} else {
+		return RSVAL(blob->data, DCERPC_AUTH_LEN_OFFSET);
+	}
+}
+
 uint8_t dcerpc_get_endian_flag(DATA_BLOB *blob)
 {
 	return blob->data[DCERPC_DREP_OFFSET];
diff --git a/librpc/rpc/rpc_common.h b/librpc/rpc/rpc_common.h
index cdc9fe8ac88..d5b5d590bff 100644
--- a/librpc/rpc/rpc_common.h
+++ b/librpc/rpc/rpc_common.h
@@ -168,6 +168,7 @@ enum dcerpc_transport_t dcerpc_transport_by_tower(const struct epm_tower *tower)
 void dcerpc_set_frag_length(DATA_BLOB *blob, uint16_t v);
 uint16_t dcerpc_get_frag_length(const DATA_BLOB *blob);
 void dcerpc_set_auth_length(DATA_BLOB *blob, uint16_t v);
+uint16_t dcerpc_get_auth_length(const DATA_BLOB *blob);
 uint8_t dcerpc_get_endian_flag(DATA_BLOB *blob);
 const char *dcerpc_default_transport_endpoint(TALLOC_CTX *mem_ctx,
 					      enum dcerpc_transport_t transport,