From 06b1582de6d676e8e9cda2a6a19bf2db0081115c Mon Sep 17 00:00:00 2001
From: Karel Miko <karel.miko@gmail.com>
Date: Thu, 30 Mar 2017 21:23:20 +0200
Subject: [PATCH] new #define FILE_READ_BUFSIZE

---
 src/headers/tomcrypt_custom.h    | 5 ++++-
 src/mac/poly1305/poly1305_file.c | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/headers/tomcrypt_custom.h b/src/headers/tomcrypt_custom.h
index 5039113..61eafd2 100644
--- a/src/headers/tomcrypt_custom.h
+++ b/src/headers/tomcrypt_custom.h
@@ -550,7 +550,10 @@
 
 #endif
 
-
+#ifndef LTC_NO_FILE
+   /* buffer size for reading from a file via fread(..) */
+   #define FILE_READ_BUFSIZE 8192
+#endif
 
 /* $Source$ */
 /* $Revision$ */
diff --git a/src/mac/poly1305/poly1305_file.c b/src/mac/poly1305/poly1305_file.c
index 92ff2aa..bca5ceb 100644
--- a/src/mac/poly1305/poly1305_file.c
+++ b/src/mac/poly1305/poly1305_file.c
@@ -42,7 +42,7 @@ int poly1305_file(const char *fname, const unsigned char *key, unsigned long key
    LTC_ARGCHK(maclen != NULL);
 
    if ((in = fopen(fname, "rb")) == NULL)                   { return CRYPT_FILE_NOTFOUND; }
-   if ((buf = XMALLOC(8196)) == NULL)                       { return CRYPT_MEM; }
+   if ((buf = XMALLOC(FILE_READ_BUFSIZE)) == NULL)          { return CRYPT_MEM; }
    if ((err = poly1305_init(&st, key, keylen)) != CRYPT_OK) { goto LBL_ERR; }
 
    do {