X-Git-Url: https://git.distorted.org.uk/~mdw/secnet/blobdiff_plain/35d30aa38d4c9a2af028fd93adcebc6dba3a9a84..refs/heads/master:/transform-eax.c

diff --git a/transform-eax.c b/transform-eax.c
index d1ff1be..c6da1d3 100644
--- a/transform-eax.c
+++ b/transform-eax.c
@@ -1,6 +1,25 @@
 /*
  * eax-transform.c: EAX-Serpent bulk data transformation
+ */
+/*
+ * This file is part of secnet.
+ * See README for full list of copyright holders.
  *
+ * secnet is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * secnet is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * version 3 along with secnet; if not, see
+ * https://www.gnu.org/licenses/gpl.html.
+ */
+/*
  * We use EAX with the following parameters:
  *
  *   Plaintext:
@@ -148,8 +167,8 @@ static void transform_delkey(void *sst)
     ti->keyed=False;
 }
 
-static uint32_t transform_forward(void *sst, struct buffer_if *buf,
-				  const char **errmsg)
+static transform_apply_return transform_forward(void *sst,
+        struct buffer_if *buf, const char **errmsg)
 {
     struct transform_inst *ti=sst;
 
@@ -186,8 +205,8 @@ static uint32_t transform_forward(void *sst, struct buffer_if *buf,
     return 0;
 }
 
-static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
-				  const char **errmsg)
+static transform_apply_return transform_reverse(void *sst,
+        struct buffer_if *buf, const char **errmsg)
 {
     struct transform_inst *ti=sst;
 
@@ -214,7 +233,7 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
     if (!ok) {
 	TEAX_DEBUG(0,0);
 	*errmsg="EAX decryption failed";
-	return 1;
+	return transform_apply_err;
     }
     assert(buf->size >= (int)ti->p.tag_length);
     buf->size -= ti->p.tag_length;
@@ -237,7 +256,7 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
 
  too_short:
     *errmsg="ciphertext or plaintext too short";
-    return 1;
+    return transform_apply_err;
 }
 
 static struct transform_inst_if *transform_create(void *sst)
@@ -258,7 +277,7 @@ static list_t *transform_apply(closure_t *self, struct cloc loc,
     item_t *item;
     dict_t *dict;
 
-    st=safe_malloc(sizeof(*st),"eax-serpent");
+    NEW(st);
     st->cl.description="eax-serpent";
     st->cl.type=CL_TRANSFORM;
     st->cl.apply=NULL;