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vlcdemo/vlc/vlc2/include/plugins/vlc_md5.h

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+/*****************************************************************************
+ * vlc_md5.h: MD5 hash
+ *****************************************************************************
+ * Copyright © 2004-2011 VLC authors and VideoLAN
+ *
+ * Authors: Rémi Denis-Courmont
+ *          Rafaël Carré
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef VLC_MD5_H
+# define VLC_MD5_H
+
+/**
+ * \file
+ * This file defines functions and structures to compute MD5 digests
+ */
+
+struct md5_s
+{
+    uint32_t A, B, C, D;          /* chaining variables */
+    uint32_t nblocks;
+    uint8_t buf[64];
+    int count;
+};
+
+VLC_API void InitMD5( struct md5_s * );
+VLC_API void AddMD5( struct md5_s *, const void *, size_t );
+VLC_API void EndMD5( struct md5_s * );
+
+/**
+ * Returns a char representation of the md5 hash, as shown by UNIX md5 or
+ * md5sum tools.
+ */
+static inline char * psz_md5_hash( struct md5_s *md5_s )
+{
+    char *psz = malloc( 33 ); /* md5 string is 32 bytes + NULL character */
+    if( likely(psz) )
+    {
+        for( int i = 0; i < 16; i++ )
+            sprintf( &psz[2*i], "%02" PRIx8, md5_s->buf[i] );
+    }
+    return psz;
+}
+
+#endif