libUPnP  1.8.0
md5.h
1 /*
2  * This is the header file for the MD5 message-digest algorithm.
3  * The algorithm is due to Ron Rivest. This code was
4  * written by Colin Plumb in 1993, no copyright is claimed.
5  * This code is in the public domain; do with it what you wish.
6  *
7  * Equivalent code is available from RSA Data Security, Inc.
8  * This code has been tested against that, and is equivalent,
9  * except that you don't need to include two pages of legalese
10  * with every copy.
11  *
12  * To compute the message digest of a chunk of bytes, declare an
13  * MD5Context structure, pass it to MD5Init, call MD5Update as
14  * needed on buffers full of bytes, and then call MD5Final, which
15  * will fill a supplied 16-byte array with the digest.
16  *
17  * Changed so as no longer to depend on Colin Plumb's `usual.h'
18  * header definitions; now uses stuff from dpkg's config.h
19  * - Ian Jackson <ian@chiark.greenend.org.uk>.
20  * Still in the public domain.
21 */
22 
23 #ifndef MD5_H
24 #define MD5_H
25 
26 #define md5byte unsigned char
27 
28 #if SIZEOF_UNSIGNED_LONG==4
29 # define UWORD32 unsigned long
30 #elif SIZEOF_UNSIGNED_INT==4
31 # define UWORD32 unsigned int
32 #else
33 # error I do not know what to use for a UWORD32.
34 #endif
35 
36 struct MD5Context {
37  UWORD32 buf[4];
38  UWORD32 bytes[2];
39  UWORD32 in[16];
40 };
41 
42 void MD5Init(struct MD5Context *context);
43 void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len);
44 void MD5Final(unsigned char digest[16], struct MD5Context *context);
45 void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]);
46 
47 #endif /* !MD5_H */