SDL 2.0
SDL_test_md5.c File Reference
#include "SDL_config.h"
#include "SDL_test.h"
+ Include dependency graph for SDL_test_md5.c:

Go to the source code of this file.

Macros

#define F(x, y, z)   (((x) & (y)) | ((~x) & (z)))
 
#define G(x, y, z)   (((x) & (z)) | ((y) & (~z)))
 
#define H(x, y, z)   ((x) ^ (y) ^ (z))
 
#define I(x, y, z)   ((y) ^ ((x) | (~z)))
 
#define ROTATE_LEFT(x, n)   (((x) << (n)) | ((x) >> (32-(n))))
 
#define FF(a, b, c, d, x, s, ac)
 
#define GG(a, b, c, d, x, s, ac)
 
#define HH(a, b, c, d, x, s, ac)
 
#define II(a, b, c, d, x, s, ac)
 
#define S11   7
 
#define S12   12
 
#define S13   17
 
#define S14   22
 
#define S21   5
 
#define S22   9
 
#define S23   14
 
#define S24   20
 
#define S31   4
 
#define S32   11
 
#define S33   16
 
#define S34   23
 
#define S41   6
 
#define S42   10
 
#define S43   15
 
#define S44   21
 

Functions

static void SDLTest_Md5Transform (MD5UINT4 *buf, MD5UINT4 *in)
 
void SDLTest_Md5Init (SDLTest_Md5Context *mdContext)
 initialize the context More...
 
void SDLTest_Md5Update (SDLTest_Md5Context *mdContext, unsigned char *inBuf, unsigned int inLen)
 update digest from variable length data More...
 
void SDLTest_Md5Final (SDLTest_Md5Context *mdContext)
 complete digest computation More...
 

Variables

static unsigned char MD5PADDING [64]
 

Macro Definition Documentation

◆ F

#define F (   x,
  y,
  z 
)    (((x) & (y)) | ((~x) & (z)))

Definition at line 73 of file SDL_test_md5.c.

◆ FF

#define FF (   a,
  b,
  c,
  d,
  x,
  s,
  ac 
)
Value:
{(a) += F ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 SDL_AssertionHandler void SDL_SpinLock SDL_atomic_t int int return SDL_atomic_t return void void void return void return int return SDL_AudioSpec SDL_AudioSpec return int int return return int SDL_RWops int SDL_AudioSpec Uint8 ** d
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1574
GLdouble s
Definition: SDL_opengl.h:2063
GLboolean GLboolean GLboolean b
GLboolean GLboolean GLboolean GLboolean a
const GLubyte * c
#define ROTATE_LEFT(x, n)
Definition: SDL_test_md5.c:79
#define F(x, y, z)
Definition: SDL_test_md5.c:73
unsigned long int MD5UINT4
Definition: SDL_test_md5.h:68

Definition at line 84 of file SDL_test_md5.c.

◆ G

#define G (   x,
  y,
  z 
)    (((x) & (z)) | ((y) & (~z)))

Definition at line 74 of file SDL_test_md5.c.

◆ GG

#define GG (   a,
  b,
  c,
  d,
  x,
  s,
  ac 
)
Value:
{(a) += G ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define G(x, y, z)
Definition: SDL_test_md5.c:74

Definition at line 89 of file SDL_test_md5.c.

◆ H

#define H (   x,
  y,
  z 
)    ((x) ^ (y) ^ (z))

Definition at line 75 of file SDL_test_md5.c.

◆ HH

#define HH (   a,
  b,
  c,
  d,
  x,
  s,
  ac 
)
Value:
{(a) += H ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define H(x, y, z)
Definition: SDL_test_md5.c:75

Definition at line 94 of file SDL_test_md5.c.

◆ I

#define I (   x,
  y,
  z 
)    ((y) ^ ((x) | (~z)))

Definition at line 76 of file SDL_test_md5.c.

◆ II

#define II (   a,
  b,
  c,
  d,
  x,
  s,
  ac 
)
Value:
{(a) += I ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define I(x, y, z)
Definition: SDL_test_md5.c:76

Definition at line 99 of file SDL_test_md5.c.

◆ ROTATE_LEFT

#define ROTATE_LEFT (   x,
  n 
)    (((x) << (n)) | ((x) >> (32-(n))))

Definition at line 79 of file SDL_test_md5.c.

◆ S11

#define S11   7

◆ S12

#define S12   12

◆ S13

#define S13   17

◆ S14

#define S14   22

◆ S21

#define S21   5

◆ S22

#define S22   9

◆ S23

#define S23   14

◆ S24

#define S24   20

◆ S31

#define S31   4

◆ S32

#define S32   11

◆ S33

#define S33   16

◆ S34

#define S34   23

◆ S41

#define S41   6

◆ S42

#define S42   10

◆ S43

#define S43   15

◆ S44

#define S44   21

Function Documentation

◆ SDLTest_Md5Final()

void SDLTest_Md5Final ( SDLTest_Md5Context mdContext)

complete digest computation

Parameters
mdContextpointer to context variable

Note: The function terminates the message-digest computation and ends with the desired message digest in mdContext.digest[0..15]. Always call before using the digest[] variable.

Definition at line 180 of file SDL_test_md5.c.

181{
182 MD5UINT4 in[16];
183 int mdi;
184 unsigned int i, ii;
185 unsigned int padLen;
186
187 if (mdContext == NULL) return;
188
189 /*
190 * save number of bits
191 */
192 in[14] = mdContext->i[0];
193 in[15] = mdContext->i[1];
194
195 /*
196 * compute number of bytes mod 64
197 */
198 mdi = (int) ((mdContext->i[0] >> 3) & 0x3F);
199
200 /*
201 * pad out to 56 mod 64
202 */
203 padLen = (mdi < 56) ? (56 - mdi) : (120 - mdi);
204 SDLTest_Md5Update(mdContext, MD5PADDING, padLen);
205
206 /*
207 * append length in bits and transform
208 */
209 for (i = 0, ii = 0; i < 14; i++, ii += 4)
210 in[i] = (((MD5UINT4) mdContext->in[ii + 3]) << 24) |
211 (((MD5UINT4) mdContext->in[ii + 2]) << 16) |
212 (((MD5UINT4) mdContext->in[ii + 1]) << 8) |
213 ((MD5UINT4) mdContext->in[ii]);
214 SDLTest_Md5Transform(mdContext->buf, in);
215
216 /*
217 * store buffer in digest
218 */
219 for (i = 0, ii = 0; i < 4; i++, ii += 4) {
220 mdContext->digest[ii] = (unsigned char) (mdContext->buf[i] & 0xFF);
221 mdContext->digest[ii + 1] =
222 (unsigned char) ((mdContext->buf[i] >> 8) & 0xFF);
223 mdContext->digest[ii + 2] =
224 (unsigned char) ((mdContext->buf[i] >> 16) & 0xFF);
225 mdContext->digest[ii + 3] =
226 (unsigned char) ((mdContext->buf[i] >> 24) & 0xFF);
227 }
228}
GLuint in
static unsigned char MD5PADDING[64]
Definition: SDL_test_md5.c:61
void SDLTest_Md5Update(SDLTest_Md5Context *mdContext, unsigned char *inBuf, unsigned int inLen)
update digest from variable length data
Definition: SDL_test_md5.c:131
static void SDLTest_Md5Transform(MD5UINT4 *buf, MD5UINT4 *in)
Definition: SDL_test_md5.c:232
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167
MD5UINT4 buf[4]
Definition: SDL_test_md5.h:73
unsigned char in[64]
Definition: SDL_test_md5.h:74
unsigned char digest[16]
Definition: SDL_test_md5.h:75

References SDLTest_Md5Context::buf, SDLTest_Md5Context::digest, i, SDLTest_Md5Context::i, SDLTest_Md5Context::in, MD5PADDING, NULL, SDLTest_Md5Transform(), and SDLTest_Md5Update().

Referenced by SDLTest_GenerateExecKey().

◆ SDLTest_Md5Init()

void SDLTest_Md5Init ( SDLTest_Md5Context mdContext)

initialize the context

Parameters
mdContextpointer to context variable

Note: The function initializes the message-digest context mdContext. Call before each new use of the context - all fields are set to zero.

Definition at line 110 of file SDL_test_md5.c.

111{
112 if (mdContext==NULL) return;
113
114 mdContext->i[0] = mdContext->i[1] = (MD5UINT4) 0;
115
116 /*
117 * Load magic initialization constants.
118 */
119 mdContext->buf[0] = (MD5UINT4) 0x67452301;
120 mdContext->buf[1] = (MD5UINT4) 0xefcdab89;
121 mdContext->buf[2] = (MD5UINT4) 0x98badcfe;
122 mdContext->buf[3] = (MD5UINT4) 0x10325476;
123}

References SDLTest_Md5Context::buf, SDLTest_Md5Context::i, and NULL.

Referenced by SDLTest_GenerateExecKey().

◆ SDLTest_Md5Transform()

static void SDLTest_Md5Transform ( MD5UINT4 buf,
MD5UINT4 in 
)
static

Definition at line 232 of file SDL_test_md5.c.

233{
234 MD5UINT4 a = buf[0], b = buf[1], c = buf[2], d = buf[3];
235
236 /*
237 * Round 1
238 */
239#define S11 7
240#define S12 12
241#define S13 17
242#define S14 22
243 FF(a, b, c, d, in[0], S11, 3614090360u); /* 1 */
244 FF(d, a, b, c, in[1], S12, 3905402710u); /* 2 */
245 FF(c, d, a, b, in[2], S13, 606105819u); /* 3 */
246 FF(b, c, d, a, in[3], S14, 3250441966u); /* 4 */
247 FF(a, b, c, d, in[4], S11, 4118548399u); /* 5 */
248 FF(d, a, b, c, in[5], S12, 1200080426u); /* 6 */
249 FF(c, d, a, b, in[6], S13, 2821735955u); /* 7 */
250 FF(b, c, d, a, in[7], S14, 4249261313u); /* 8 */
251 FF(a, b, c, d, in[8], S11, 1770035416u); /* 9 */
252 FF(d, a, b, c, in[9], S12, 2336552879u); /* 10 */
253 FF(c, d, a, b, in[10], S13, 4294925233u); /* 11 */
254 FF(b, c, d, a, in[11], S14, 2304563134u); /* 12 */
255 FF(a, b, c, d, in[12], S11, 1804603682u); /* 13 */
256 FF(d, a, b, c, in[13], S12, 4254626195u); /* 14 */
257 FF(c, d, a, b, in[14], S13, 2792965006u); /* 15 */
258 FF(b, c, d, a, in[15], S14, 1236535329u); /* 16 */
259
260 /*
261 * Round 2
262 */
263#define S21 5
264#define S22 9
265#define S23 14
266#define S24 20
267 GG(a, b, c, d, in[1], S21, 4129170786u); /* 17 */
268 GG(d, a, b, c, in[6], S22, 3225465664u); /* 18 */
269 GG(c, d, a, b, in[11], S23, 643717713u); /* 19 */
270 GG(b, c, d, a, in[0], S24, 3921069994u); /* 20 */
271 GG(a, b, c, d, in[5], S21, 3593408605u); /* 21 */
272 GG(d, a, b, c, in[10], S22, 38016083u); /* 22 */
273 GG(c, d, a, b, in[15], S23, 3634488961u); /* 23 */
274 GG(b, c, d, a, in[4], S24, 3889429448u); /* 24 */
275 GG(a, b, c, d, in[9], S21, 568446438u); /* 25 */
276 GG(d, a, b, c, in[14], S22, 3275163606u); /* 26 */
277 GG(c, d, a, b, in[3], S23, 4107603335u); /* 27 */
278 GG(b, c, d, a, in[8], S24, 1163531501u); /* 28 */
279 GG(a, b, c, d, in[13], S21, 2850285829u); /* 29 */
280 GG(d, a, b, c, in[2], S22, 4243563512u); /* 30 */
281 GG(c, d, a, b, in[7], S23, 1735328473u); /* 31 */
282 GG(b, c, d, a, in[12], S24, 2368359562u); /* 32 */
283
284 /*
285 * Round 3
286 */
287#define S31 4
288#define S32 11
289#define S33 16
290#define S34 23
291 HH(a, b, c, d, in[5], S31, 4294588738u); /* 33 */
292 HH(d, a, b, c, in[8], S32, 2272392833u); /* 34 */
293 HH(c, d, a, b, in[11], S33, 1839030562u); /* 35 */
294 HH(b, c, d, a, in[14], S34, 4259657740u); /* 36 */
295 HH(a, b, c, d, in[1], S31, 2763975236u); /* 37 */
296 HH(d, a, b, c, in[4], S32, 1272893353u); /* 38 */
297 HH(c, d, a, b, in[7], S33, 4139469664u); /* 39 */
298 HH(b, c, d, a, in[10], S34, 3200236656u); /* 40 */
299 HH(a, b, c, d, in[13], S31, 681279174u); /* 41 */
300 HH(d, a, b, c, in[0], S32, 3936430074u); /* 42 */
301 HH(c, d, a, b, in[3], S33, 3572445317u); /* 43 */
302 HH(b, c, d, a, in[6], S34, 76029189u); /* 44 */
303 HH(a, b, c, d, in[9], S31, 3654602809u); /* 45 */
304 HH(d, a, b, c, in[12], S32, 3873151461u); /* 46 */
305 HH(c, d, a, b, in[15], S33, 530742520u); /* 47 */
306 HH(b, c, d, a, in[2], S34, 3299628645u); /* 48 */
307
308 /*
309 * Round 4
310 */
311#define S41 6
312#define S42 10
313#define S43 15
314#define S44 21
315 II(a, b, c, d, in[0], S41, 4096336452u); /* 49 */
316 II(d, a, b, c, in[7], S42, 1126891415u); /* 50 */
317 II(c, d, a, b, in[14], S43, 2878612391u); /* 51 */
318 II(b, c, d, a, in[5], S44, 4237533241u); /* 52 */
319 II(a, b, c, d, in[12], S41, 1700485571u); /* 53 */
320 II(d, a, b, c, in[3], S42, 2399980690u); /* 54 */
321 II(c, d, a, b, in[10], S43, 4293915773u); /* 55 */
322 II(b, c, d, a, in[1], S44, 2240044497u); /* 56 */
323 II(a, b, c, d, in[8], S41, 1873313359u); /* 57 */
324 II(d, a, b, c, in[15], S42, 4264355552u); /* 58 */
325 II(c, d, a, b, in[6], S43, 2734768916u); /* 59 */
326 II(b, c, d, a, in[13], S44, 1309151649u); /* 60 */
327 II(a, b, c, d, in[4], S41, 4149444226u); /* 61 */
328 II(d, a, b, c, in[11], S42, 3174756917u); /* 62 */
329 II(c, d, a, b, in[2], S43, 718787259u); /* 63 */
330 II(b, c, d, a, in[9], S44, 3951481745u); /* 64 */
331
332 buf[0] += a;
333 buf[1] += b;
334 buf[2] += c;
335 buf[3] += d;
336}
GLenum GLuint GLenum GLsizei const GLchar * buf
#define FF(a, b, c, d, x, s, ac)
Definition: SDL_test_md5.c:84
#define S24
#define S33
#define S32
#define S12
#define S42
#define S11
#define S43
#define S23
#define GG(a, b, c, d, x, s, ac)
Definition: SDL_test_md5.c:89
#define S44
#define S14
#define HH(a, b, c, d, x, s, ac)
Definition: SDL_test_md5.c:94
#define S13
#define S41
#define S21
#define II(a, b, c, d, x, s, ac)
Definition: SDL_test_md5.c:99
#define S22
#define S31
#define S34

References d, FF, GG, HH, II, S11, S12, S13, S14, S21, S22, S23, S24, S31, S32, S33, S34, S41, S42, S43, and S44.

Referenced by SDLTest_Md5Final(), and SDLTest_Md5Update().

◆ SDLTest_Md5Update()

void SDLTest_Md5Update ( SDLTest_Md5Context mdContext,
unsigned char *  inBuf,
unsigned int  inLen 
)

update digest from variable length data

Parameters
mdContextpointer to context variable
inBufpointer to data array/string
inLenlength of data array/string

Note: The function updates the message-digest context to account for the presence of each of the characters inBuf[0..inLen-1] in the message whose digest is being computed.

Definition at line 131 of file SDL_test_md5.c.

133{
134 MD5UINT4 in[16];
135 int mdi;
136 unsigned int i, ii;
137
138 if (mdContext == NULL) return;
139 if (inBuf == NULL || inLen < 1) return;
140
141 /*
142 * compute number of bytes mod 64
143 */
144 mdi = (int) ((mdContext->i[0] >> 3) & 0x3F);
145
146 /*
147 * update number of bits
148 */
149 if ((mdContext->i[0] + ((MD5UINT4) inLen << 3)) < mdContext->i[0])
150 mdContext->i[1]++;
151 mdContext->i[0] += ((MD5UINT4) inLen << 3);
152 mdContext->i[1] += ((MD5UINT4) inLen >> 29);
153
154 while (inLen--) {
155 /*
156 * add new character to buffer, increment mdi
157 */
158 mdContext->in[mdi++] = *inBuf++;
159
160 /*
161 * transform if necessary
162 */
163 if (mdi == 0x40) {
164 for (i = 0, ii = 0; i < 16; i++, ii += 4)
165 in[i] = (((MD5UINT4) mdContext->in[ii + 3]) << 24) |
166 (((MD5UINT4) mdContext->in[ii + 2]) << 16) |
167 (((MD5UINT4) mdContext->in[ii + 1]) << 8) |
168 ((MD5UINT4) mdContext->in[ii]);
169 SDLTest_Md5Transform(mdContext->buf, in);
170 mdi = 0;
171 }
172 }
173}

References SDLTest_Md5Context::buf, i, SDLTest_Md5Context::i, SDLTest_Md5Context::in, NULL, and SDLTest_Md5Transform().

Referenced by SDLTest_GenerateExecKey(), and SDLTest_Md5Final().

Variable Documentation

◆ MD5PADDING

unsigned char MD5PADDING[64]
static
Initial value:
= {
0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
}

Definition at line 61 of file SDL_test_md5.c.

Referenced by SDLTest_Md5Final().