added some helper functions for GUID handling

diff --git a/source/libcli/raw/rawrequest.c b/source/libcli/raw/rawrequest.c
index e7dffaf05400d793c227f5b1988b3b71aa5e31c4..3551e5d441200bc1648bfb5d9ecb09cba6f59cc5 100644 (file)
--- a/source/libcli/raw/rawrequest.c
+++ b/source/libcli/raw/rawrequest.c
@@ -972,3 +972,44 @@ size_t smbcli_blob_append_string(struct smbcli_session *session,
 
        return len;
 }
+
+/*
+  pull a GUID structure from the wire. The buffer must be at least 16
+  bytes long
+ */
+enum ndr_err_code smbcli_pull_guid(void *base, uint16_t offset, 
+                                  struct GUID *guid)
+{
+       DATA_BLOB blob;
+       TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+       enum ndr_err_code ndr_err;
+
+       ZERO_STRUCTP(guid);
+
+       blob.data       = offset + (uint8_t *)base;
+       blob.length     = 16;
+       ndr_err = ndr_pull_struct_blob(&blob, tmp_ctx, NULL, guid, 
+                                      (ndr_pull_flags_fn_t)ndr_pull_GUID);
+       talloc_free(tmp_ctx);
+       return ndr_err;
+}
+
+/*
+  push a guid onto the wire. The buffer must hold 16 bytes
+ */
+enum ndr_err_code smbcli_push_guid(void *base, uint16_t offset, 
+                                  const struct GUID *guid)
+{
+       TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+       enum ndr_err_code ndr_err;
+       DATA_BLOB blob;
+       ndr_err = ndr_push_struct_blob(&blob, tmp_ctx, NULL,
+                                      guid, (ndr_push_flags_fn_t)ndr_push_GUID);
+       if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err) || blob.length != 16) {
+               talloc_free(tmp_ctx);
+               return ndr_err;
+       }
+       memcpy(offset + (uint8_t *)base, blob.data, blob.length);
+       talloc_free(tmp_ctx);
+       return ndr_err;
+}