Update base64 PolarSSL code

Also adjust our code using it for the size_t adjustments made by
upstream.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 8 insertions, 6 deletions

diff --git a/lib/libalpm/base64.h b/lib/libalpm/base64.h
index 0ae9612c..406aefa1 100644
--- a/lib/libalpm/base64.h
+++ b/lib/libalpm/base64.h
@@ -25,8 +25,10 @@
 #ifndef _BASE64_H
 #define _BASE64_H
 
-#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL               0x0010
-#define POLARSSL_ERR_BASE64_INVALID_CHARACTER              0x0012
+#include <string.h>
+
+#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL               -0x0010  /**< Output buffer too small. */
+#define POLARSSL_ERR_BASE64_INVALID_CHARACTER              -0x0012  /**< Invalid character in input. */
 
 /**
  * \brief          Encode a buffer into base64 format
@@ -43,8 +45,8 @@
  * \note           Call this function with *dlen = 0 to obtain the
  *                 required buffer size in *dlen
  */
-int base64_encode( unsigned char *dst, int *dlen,
-                   const unsigned char *src, int  slen );
+int base64_encode( unsigned char *dst, size_t *dlen,
+                   const unsigned char *src, size_t slen );
 
 /**
  * \brief          Decode a base64-formatted buffer
@@ -62,7 +64,7 @@ int base64_encode( unsigned char *dst, int *dlen,
  * \note           Call this function with *dlen = 0 to obtain the
  *                 required buffer size in *dlen
  */
-int base64_decode( unsigned char *dst, int *dlen,
-                   const unsigned char *src, int  slen );
+int base64_decode( unsigned char *dst, size_t *dlen,
+                   const unsigned char *src, size_t slen );
 
 #endif /* base64.h */