X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Futil%2Fcrypto_random.c;h=03f6c0e987f739b60a6ecd0b5fd49609edde0650;hb=502af2167f7c218366666ca4944bd7cc54b5b19a;hp=5928b96ea7bffacdfb2e99c1ef708c00752548c5;hpb=03af5a603b7cc53432249d5854cd412aa90dde0d;p=oweals%2Fgnunet.git

diff --git a/src/util/crypto_random.c b/src/util/crypto_random.c
index 5928b96ea..03f6c0e98 100644
--- a/src/util/crypto_random.c
+++ b/src/util/crypto_random.c
@@ -61,37 +61,37 @@ GNUNET_CRYPTO_random_u32 (enum GNUNET_CRYPTO_Quality mode, uint32_t i)
   GNUNET_assert (i > 0);
 
   switch (mode)
-    {
-    case GNUNET_CRYPTO_QUALITY_STRONG:
-      /* see http://lists.gnupg.org/pipermail/gcrypt-devel/2004-May/000613.html */
+  {
+  case GNUNET_CRYPTO_QUALITY_STRONG:
+    /* see http://lists.gnupg.org/pipermail/gcrypt-devel/2004-May/000613.html */
 #ifdef gcry_fast_random_poll
-      if ((invokeCount++ % 256) == 0)
-        gcry_fast_random_poll ();
+    if ((invokeCount++ % 256) == 0)
+      gcry_fast_random_poll ();
 #endif
-      ul = UINT32_MAX - (UINT32_MAX % i);
-      do
-	{
-	  gcry_randomize ((unsigned char *) &ret,
-			  sizeof (uint32_t), GCRY_STRONG_RANDOM);
-	}
-      while (ret >= ul);
-      return ret % i;
-    case GNUNET_CRYPTO_QUALITY_NONCE:
-      ul = UINT32_MAX - (UINT32_MAX % i);
-      do
-        {
-          gcry_create_nonce(&ret, sizeof(ret));
-        }
-      while (ret >= ul);
-      return ret % i;
-    case GNUNET_CRYPTO_QUALITY_WEAK:
-      ret = i * weak_random ();
-      if (ret >= i)
-        ret = i - 1;
-      return ret;
-    default:
-      GNUNET_assert (0);
+    ul = UINT32_MAX - (UINT32_MAX % i);
+    do
+    {
+      gcry_randomize ((unsigned char *) &ret,
+                      sizeof (uint32_t), GCRY_STRONG_RANDOM);
+    }
+    while (ret >= ul);
+    return ret % i;
+  case GNUNET_CRYPTO_QUALITY_NONCE:
+    ul = UINT32_MAX - (UINT32_MAX % i);
+    do
+    {
+      gcry_create_nonce (&ret, sizeof (ret));
     }
+    while (ret >= ul);
+    return ret % i;
+  case GNUNET_CRYPTO_QUALITY_WEAK:
+    ret = i * weak_random ();
+    if (ret >= i)
+      ret = i - 1;
+    return ret;
+  default:
+    GNUNET_assert (0);
+  }
   return 0;
 }
 
@@ -117,12 +117,12 @@ GNUNET_CRYPTO_random_permute (enum GNUNET_CRYPTO_Quality mode, unsigned int n)
   for (i = 0; i < n; i++)
     ret[i] = i;
   for (i = n - 1; i > 0; i--)
-    {
-      x = GNUNET_CRYPTO_random_u32 (mode, i+1);
-      tmp = ret[x];
-      ret[x] = ret[i];
-      ret[i] = tmp;
-    }
+  {
+    x = GNUNET_CRYPTO_random_u32 (mode, i + 1);
+    tmp = ret[x];
+    ret[x] = ret[i];
+    ret[i] = tmp;
+  }
   return ret;
 }
 
@@ -142,33 +142,33 @@ GNUNET_CRYPTO_random_u64 (enum GNUNET_CRYPTO_Quality mode, uint64_t max)
 
   GNUNET_assert (max > 0);
   switch (mode)
+  {
+  case GNUNET_CRYPTO_QUALITY_STRONG:
+    ul = UINT64_MAX - (UINT64_MAX % max);
+    do
     {
-    case GNUNET_CRYPTO_QUALITY_STRONG:    
-      ul = UINT64_MAX - (UINT64_MAX % max);
-      do
-	{
-	  gcry_randomize ((unsigned char *) &ret,
-			  sizeof (uint64_t), GCRY_STRONG_RANDOM);
-	}
-      while (ret >= ul);
-      return ret % max;
-    case GNUNET_CRYPTO_QUALITY_NONCE:
-      ul = UINT64_MAX - (UINT64_MAX % max);
-      do
-        {
-          gcry_create_nonce(&ret, sizeof(ret));
-        }
-      while (ret >= ul);
-
-      return ret % max;
-    case GNUNET_CRYPTO_QUALITY_WEAK:
-      ret = max * weak_random ();
-      if (ret >= max)
-        ret = max - 1;
-      return ret;
-    default:
-      GNUNET_assert (0);
+      gcry_randomize ((unsigned char *) &ret,
+                      sizeof (uint64_t), GCRY_STRONG_RANDOM);
     }
+    while (ret >= ul);
+    return ret % max;
+  case GNUNET_CRYPTO_QUALITY_NONCE:
+    ul = UINT64_MAX - (UINT64_MAX % max);
+    do
+    {
+      gcry_create_nonce (&ret, sizeof (ret));
+    }
+    while (ret >= ul);
+
+    return ret % max;
+  case GNUNET_CRYPTO_QUALITY_WEAK:
+    ret = max * weak_random ();
+    if (ret >= max)
+      ret = max - 1;
+    return ret;
+  default:
+    GNUNET_assert (0);
+  }
   return 0;
 }
 
@@ -205,33 +205,33 @@ entropy_generator (void *cls,
   if (0 != strcmp (what, "need_entropy"))
     return;
   if (current == total)
+  {
+    if (genproc != NULL)
     {
-      if (genproc != NULL)
-        {
-          if (0 != GNUNET_OS_process_kill (genproc, SIGTERM))
-            GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "kill");
-          GNUNET_break (GNUNET_OK == GNUNET_OS_process_wait (genproc));
-          GNUNET_OS_process_close (genproc);
-          genproc = NULL;
-        }
-      return;
-    }
-  if (genproc != NULL)
-    {
-      ret = GNUNET_OS_process_status (genproc, &type, &code);
-      if (ret == GNUNET_NO)
-        return;                 /* still running */
-      if (ret == GNUNET_SYSERR)
-        {
-          GNUNET_break (0);
-          return;
-        }
       if (0 != GNUNET_OS_process_kill (genproc, SIGTERM))
         GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "kill");
       GNUNET_break (GNUNET_OK == GNUNET_OS_process_wait (genproc));
       GNUNET_OS_process_close (genproc);
       genproc = NULL;
     }
+    return;
+  }
+  if (genproc != NULL)
+  {
+    ret = GNUNET_OS_process_status (genproc, &type, &code);
+    if (ret == GNUNET_NO)
+      return;                   /* still running */
+    if (ret == GNUNET_SYSERR)
+    {
+      GNUNET_break (0);
+      return;
+    }
+    if (0 != GNUNET_OS_process_kill (genproc, SIGTERM))
+      GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "kill");
+    GNUNET_break (GNUNET_OK == GNUNET_OS_process_wait (genproc));
+    GNUNET_OS_process_close (genproc);
+    genproc = NULL;
+  }
   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
               _("Starting `%s' process to generate entropy\n"), "find");
   genproc = GNUNET_OS_start_process (NULL, NULL, "sh",
@@ -246,11 +246,11 @@ static void
 killfind ()
 {
   if (genproc != NULL)
-    {
-      GNUNET_OS_process_kill (genproc, SIGKILL);
-      GNUNET_OS_process_close (genproc);
-      genproc = NULL;
-    }
+  {
+    GNUNET_OS_process_kill (genproc, SIGKILL);
+    GNUNET_OS_process_close (genproc);
+    genproc = NULL;
+  }
 }
 
 
@@ -258,19 +258,20 @@ void __attribute__ ((constructor)) GNUNET_CRYPTO_random_init ()
 {
   gcry_control (GCRYCTL_DISABLE_SECMEM, 0);
   if (!gcry_check_version (GCRYPT_VERSION))
-    {
-      fprintf (stderr,
-               _
-               ("libgcrypt has not the expected version (version %s is required).\n"),
-               GCRYPT_VERSION);
-      abort ();
-    }
+  {
+    fprintf (stderr,
+             _
+             ("libgcrypt has not the expected version (version %s is required).\n"),
+             GCRYPT_VERSION);
+    abort ();
+  }
 #ifdef gcry_fast_random_poll
   gcry_fast_random_poll ();
 #endif
   gcry_set_progress_handler (&entropy_generator, NULL);
   atexit (&killfind);
-  SRANDOM (time (NULL) ^ GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE, UINT32_MAX));
+  SRANDOM (time (NULL) ^
+           GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE, UINT32_MAX));
 }
 
 
@@ -282,4 +283,3 @@ void __attribute__ ((destructor)) GNUNET_CRYPTO_random_fini ()
 
 
 /* end of crypto_random.c */
-