X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/4725d7a4bc5ac1fdae3e86222cdc23eaaf6fb226..0a03cd809dd45e3645a54feffe364d8f2b33d71e:/src/xbt/xbt_sha.c

diff --git a/src/xbt/xbt_sha.c b/src/xbt/xbt_sha.c
index bca3bf22e5..12fa575479 100644
--- a/src/xbt/xbt_sha.c
+++ b/src/xbt/xbt_sha.c
@@ -19,29 +19,32 @@ struct s_xbt_sha_ {
   int blen;
   unsigned int lenhi, lenlo;
 };
-static void sha_calculate (xbt_sha_t sha);
+static void sha_calculate(xbt_sha_t sha);
 
 /* ************** */
 /* User Interface */
 /* ************** */
 
 /** @brief constructor */
-xbt_sha_t xbt_sha_new (void) {
+xbt_sha_t xbt_sha_new(void)
+{
   xbt_sha_t sha;
 
-  sha = xbt_new(s_xbt_sha_t,1);
-  xbt_sha_reset (sha);
+  sha = xbt_new(s_xbt_sha_t, 1);
+  xbt_sha_reset(sha);
 
   return sha;
 }
 
 /** @brief destructor */
-void xbt_sha_free (xbt_sha_t sha) {
-  free (sha);
+void xbt_sha_free(xbt_sha_t sha)
+{
+  free(sha);
 }
 
-void xbt_sha_reset (xbt_sha_t sha) {
-  memset (sha, 0, sizeof (s_xbt_sha_t));
+void xbt_sha_reset(xbt_sha_t sha)
+{
+  memset(sha, 0, sizeof(s_xbt_sha_t));
   sha->hash[0] = 0x67452301;
   sha->hash[1] = 0xefcdab89;
   sha->hash[2] = 0x98badcfe;
@@ -50,14 +53,15 @@ void xbt_sha_reset (xbt_sha_t sha) {
 }
 
 /* @brief Add some more data to the buffer */
-void xbt_sha_feed (xbt_sha_t sha, const unsigned char *data, size_t len) {
+void xbt_sha_feed(xbt_sha_t sha, const unsigned char *data, size_t len)
+{
   int i;
 
-  for (i=0; i<len; i++) {
+  for (i = 0; i < len; i++) {
     sha->buf[sha->blen / 4] <<= 8;
-    sha->buf[sha->blen / 4] |= (unsigned int)data[i];
+    sha->buf[sha->blen / 4] |= (unsigned int) data[i];
     if ((++sha->blen) % 64 == 0) {
-      sha_calculate (sha);
+      sha_calculate(sha);
       sha->blen = 0;
     }
     sha->lenlo += 8;
@@ -66,56 +70,60 @@ void xbt_sha_feed (xbt_sha_t sha, const unsigned char *data, size_t len) {
 }
 
 /* finalize computation before displaying the result */
-static void xbt_sha_finalize (xbt_sha_t sha) {
+static void xbt_sha_finalize(xbt_sha_t sha)
+{
   unsigned char pad[8];
   unsigned char padc;
 
-  pad[0] = (unsigned char)((sha->lenhi >> 24) & 0xff);
-  pad[1] = (unsigned char)((sha->lenhi >> 16) & 0xff);
-  pad[2] = (unsigned char)((sha->lenhi >> 8) & 0xff);
-  pad[3] = (unsigned char)(sha->lenhi & 0xff);
-  pad[4] = (unsigned char)((sha->lenlo >> 24) & 0xff);
-  pad[5] = (unsigned char)((sha->lenlo >> 16) & 0xff);
-  pad[6] = (unsigned char)((sha->lenlo >> 8) & 0xff);
-  pad[7] = (unsigned char)(sha->lenlo & 255);
+  pad[0] = (unsigned char) ((sha->lenhi >> 24) & 0xff);
+  pad[1] = (unsigned char) ((sha->lenhi >> 16) & 0xff);
+  pad[2] = (unsigned char) ((sha->lenhi >> 8) & 0xff);
+  pad[3] = (unsigned char) (sha->lenhi & 0xff);
+  pad[4] = (unsigned char) ((sha->lenlo >> 24) & 0xff);
+  pad[5] = (unsigned char) ((sha->lenlo >> 16) & 0xff);
+  pad[6] = (unsigned char) ((sha->lenlo >> 8) & 0xff);
+  pad[7] = (unsigned char) (sha->lenlo & 255);
 
   padc = 0x80;
-  xbt_sha_feed (sha, &padc, 1);
+  xbt_sha_feed(sha, &padc, 1);
 
   padc = 0x00;
   while (sha->blen != 56)
-    xbt_sha_feed (sha, &padc, 1);
+    xbt_sha_feed(sha, &padc, 1);
 
-  xbt_sha_feed (sha, pad, 8);
+  xbt_sha_feed(sha, pad, 8);
 }
 
 /** @brief returns the sha hash into a newly allocated buffer (+ reset sha object) */
-char *xbt_sha_read(xbt_sha_t sha) {
+char *xbt_sha_read(xbt_sha_t sha)
+{
   char *res = xbt_malloc(40);
-  xbt_sha_print(sha,res);
+  xbt_sha_print(sha, res);
   return res;
 }
 
 /** @brief copy the content sha hash into the @a hash pre-allocated string (and reset buffer) */
-void xbt_sha_print (xbt_sha_t sha, char *hash) {
+void xbt_sha_print(xbt_sha_t sha, char *hash)
+{
   int i;
 
   xbt_sha_finalize(sha);
-  for (i=0; i<5; i++) {
-    sprintf (hash, "%08x", sha->hash[i]);
+  for (i = 0; i < 5; i++) {
+    sprintf(hash, "%08x", sha->hash[i]);
     hash += 8;
   }
 }
 
 
 /** @brief simply compute a SHA1 hash and copy it to the provided buffer */
-void xbt_sha (const char *data, char *hash) {
+void xbt_sha(const char *data, char *hash)
+{
   s_xbt_sha_t sha;
 
-  xbt_sha_reset (&sha);
-  xbt_sha_feed (&sha, (const unsigned char*)data, strlen (data));
+  xbt_sha_reset(&sha);
+  xbt_sha_feed(&sha, (const unsigned char *) data, strlen(data));
 
-  xbt_sha_print (&sha, hash);
+  xbt_sha_print(&sha, hash);
 }
 
 /* ********************* */
@@ -133,13 +141,15 @@ void xbt_sha (const char *data, char *hash) {
     A = TMP; \
   }
 
-static void sha_calculate (xbt_sha_t sha)
+static void sha_calculate(xbt_sha_t sha)
 {
   int i;
   unsigned int A, B, C, D, E, TMP;
 
-  for (i=16; i<80; i++)
-    sha->buf[i] = SRL (sha->buf[i-3] ^ sha->buf[i-8] ^ sha->buf[i-14] ^ sha->buf[i-16], 1);
+  for (i = 16; i < 80; i++)
+    sha->buf[i] =
+      SRL(sha->buf[i - 3] ^ sha->buf[i - 8] ^ sha->
+          buf[i - 14] ^ sha->buf[i - 16], 1);
 
   A = sha->hash[0];
   B = sha->hash[1];
@@ -147,10 +157,10 @@ static void sha_calculate (xbt_sha_t sha)
   D = sha->hash[3];
   E = sha->hash[4];
 
-  SHA (0,  19, ((C^D)&B)^D,     0x5a827999);
-  SHA (20, 39, B^C^D,           0x6ed9eba1);
-  SHA (40, 59, (B&C)|(D&(B|C)), 0x8f1bbcdc);
-  SHA (60, 79, B^C^D,           0xca62c1d6);
+  SHA(0, 19, ((C ^ D) & B) ^ D, 0x5a827999);
+  SHA(20, 39, B ^ C ^ D, 0x6ed9eba1);
+  SHA(40, 59, (B & C) | (D & (B | C)), 0x8f1bbcdc);
+  SHA(60, 79, B ^ C ^ D, 0xca62c1d6);
 
   sha->hash[0] += A;
   sha->hash[1] += B;
@@ -164,41 +174,47 @@ static void sha_calculate (xbt_sha_t sha)
 /* ************* */
 #ifdef SIMGRID_TEST
 #include "xbt/hash.h"
-#include "portable.h" /* hexa_str */
+#include "portable.h"           /* hexa_str */
 
-static char* mycmp(const char *p1, const char *p2,size_t n) {
+static char *mycmp(const char *p1, const char *p2, size_t n)
+{
   int i;
 
-  for (i=0; i<n; i++) {
+  for (i = 0; i < n; i++) {
     if (p1[i] != p2[i]) {
-      return bprintf("Differs on %d -- Ox%x",i,p1[i]);
+      return bprintf("Differs on %d -- Ox%x", i, p1[i]);
     }
   }
   return xbt_strdup("");
 }
 
-static void test_sha(const char *clear,const char *hashed) {
+static void test_sha(const char *clear, const char *hashed)
+{
   char hash[41];
-  xbt_sha(clear,hash);
+  xbt_sha(clear, hash);
 
-  xbt_test_add1("==== Test with '%s'",clear);
+  xbt_test_add1("==== Test with '%s'", clear);
   xbt_test_assert3(!memcmp(hash, hashed, 40), "Wrong sha: %40s!=%40s (%s)",
-                   hash,hashed,mycmp(hash,hashed,40));
+                   hash, hashed, mycmp(hash, hashed, 40));
 }
 
-XBT_TEST_SUITE("hash","Various hash functions");
+XBT_TEST_SUITE("hash", "Various hash functions");
 
-XBT_LOG_NEW_DEFAULT_CATEGORY(hash,"Tests of various hash functions ");
+XBT_LOG_NEW_DEFAULT_CATEGORY(hash, "Tests of various hash functions ");
 
 
-XBT_TEST_UNIT("sha",test_crypto_sha,"Test of the sha algorithm") {
+XBT_TEST_UNIT("sha", test_crypto_sha, "Test of the sha algorithm")
+{
   /* Empty string as test vector */
-  test_sha("",                                            "da39a3ee5e6b4b0d3255bfef95601890afd80709");
+  test_sha("", "da39a3ee5e6b4b0d3255bfef95601890afd80709");
 
   /* Some pangram as test vector */
-  test_sha("The quick brown fox jumps over the lazy dog", "2fd4e1c67a2d28fced849ee1bb76e7391b93eb12");
-  test_sha("Woven silk pyjamas exchanged for blue quartz","da3aff337c810c6470db4dbf0f205c8afc31c442");
-  test_sha("Pack my box with five dozen liquor jugs",     "373ba8be29d4d95708bf7cd43038f4e409dcb439");
+  test_sha("The quick brown fox jumps over the lazy dog",
+           "2fd4e1c67a2d28fced849ee1bb76e7391b93eb12");
+  test_sha("Woven silk pyjamas exchanged for blue quartz",
+           "da3aff337c810c6470db4dbf0f205c8afc31c442");
+  test_sha("Pack my box with five dozen liquor jugs",
+           "373ba8be29d4d95708bf7cd43038f4e409dcb439");
 
 }
 #endif /* SIMGRID_TEST */