md5: Add support for calculating the md5 sum of buffers incrementally

[platform/upstream/curl.git] / lib / curl_md5.h

diff --git a/lib/curl_md5.h b/lib/curl_md5.h
index cab9915..b445500 100644 (file)
--- a/lib/curl_md5.h
+++ b/lib/curl_md5.h
@@ -22,7 +22,42 @@
  *
  ***************************************************************************/
 
+#ifndef CURL_DISABLE_CRYPTO_AUTH
+#include "curl_hmac.h"
+
+#define MD5_DIGEST_LEN  16
+
+typedef void (* Curl_MD5_init_func)(void *context);
+typedef void (* Curl_MD5_update_func)(void *context,
+                                      const unsigned char *data,
+                                      unsigned int len);
+typedef void (* Curl_MD5_final_func)(unsigned char *result, void *context);
+
+typedef struct {
+  Curl_MD5_init_func     md5_init;      /* Initialize context procedure */
+  Curl_MD5_update_func   md5_update;    /* Update context with data */
+  Curl_MD5_final_func    md5_final;     /* Get final result procedure */
+  unsigned int           md5_ctxtsize;  /* Context structure size */
+  unsigned int           md5_resultlen; /* Result length (bytes) */
+} MD5_params;
+
+typedef struct {
+  const MD5_params      *md5_hash;      /* Hash function definition */
+  void                  *md5_hashctx;   /* Hash function context */
+} MD5_context;
+
+extern const MD5_params Curl_DIGEST_MD5[1];
+extern const HMAC_params Curl_HMAC_MD5[1];
+
 void Curl_md5it(unsigned char *output,
                 const unsigned char *input);
 
+MD5_context * Curl_MD5_init(const MD5_params *md5params);
+int Curl_MD5_update(MD5_context *context,
+                    const unsigned char *data,
+                    unsigned int len);
+int Curl_MD5_final(MD5_context *context, unsigned char *result);
+
+#endif
+
 #endif /* HEADER_CURL_MD5_H */