1 files changed, 143 insertions, 154 deletions

diff --git a/src/util/server_mst.c b/src/util/server_mst.c
index 835d8eebaa..f48ef5475f 100644
--- a/src/util/server_mst.c
+++ b/src/util/server_mst.c
@@ -50,7 +50,7 @@ struct GNUNET_SERVER_MessageStreamTokenizer
    * Function to call on completed messages.
    */
   GNUNET_SERVER_MessageTokenizerCallback cb;
-  
+
   /**
    * Closure for cb.
    */
@@ -89,12 +89,12 @@ struct GNUNET_SERVER_MessageStreamTokenizer
  */
 struct GNUNET_SERVER_MessageStreamTokenizer *
 GNUNET_SERVER_mst_create (GNUNET_SERVER_MessageTokenizerCallback cb,
-			  void *cb_cls)
+                          void *cb_cls)
 {
   struct GNUNET_SERVER_MessageStreamTokenizer *ret;
 
   ret = GNUNET_malloc (sizeof (struct GNUNET_SERVER_MessageStreamTokenizer));
-  ret->hdr = GNUNET_malloc(GNUNET_SERVER_MIN_BUFFER_SIZE);
+  ret->hdr = GNUNET_malloc (GNUNET_SERVER_MIN_BUFFER_SIZE);
   ret->curr_buf = GNUNET_SERVER_MIN_BUFFER_SIZE;
   ret->cb = cb;
   ret->cb_cls = cb_cls;
@@ -119,11 +119,9 @@ GNUNET_SERVER_mst_create (GNUNET_SERVER_MessageTokenizerCallback cb,
  */
 int
 GNUNET_SERVER_mst_receive (struct GNUNET_SERVER_MessageStreamTokenizer *mst,
-			   void *client_identity,
-			   const char *buf,
-			   size_t size,
-			   int purge,
-			   int one_shot)
+                           void *client_identity,
+                           const char *buf,
+                           size_t size, int purge, int one_shot)
 {
   const struct GNUNET_MessageHeader *hdr;
   size_t delta;
@@ -135,169 +133,160 @@ GNUNET_SERVER_mst_receive (struct GNUNET_SERVER_MessageStreamTokenizer *mst,
 
 #if DEBUG_SERVER_MST
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-	      "Server-mst receives %u bytes with %u bytes already in private buffer\n",
-	      (unsigned int) size,
-	      (unsigned int) (mst->pos - mst->off));
+              "Server-mst receives %u bytes with %u bytes already in private buffer\n",
+              (unsigned int) size, (unsigned int) (mst->pos - mst->off));
 #endif
   ret = GNUNET_OK;
-  ibuf = (char*)mst->hdr;
+  ibuf = (char *) mst->hdr;
   while (mst->pos > 0)
+  {
+do_align:
+    if ((mst->curr_buf - mst->off < sizeof (struct GNUNET_MessageHeader)) ||
+        (0 != (mst->off % ALIGN_FACTOR)))
+    {
+      /* need to align or need more space */
+      mst->pos -= mst->off;
+      memmove (ibuf, &ibuf[mst->off], mst->pos);
+      mst->off = 0;
+    }
+    if (mst->pos - mst->off < sizeof (struct GNUNET_MessageHeader))
+    {
+      delta =
+          GNUNET_MIN (sizeof (struct GNUNET_MessageHeader) -
+                      (mst->pos - mst->off), size);
+      memcpy (&ibuf[mst->pos], buf, delta);
+      mst->pos += delta;
+      buf += delta;
+      size -= delta;
+    }
+    if (mst->pos - mst->off < sizeof (struct GNUNET_MessageHeader))
+    {
+      if (purge)
+      {
+        mst->off = 0;
+        mst->pos = 0;
+      }
+      return GNUNET_OK;
+    }
+    hdr = (const struct GNUNET_MessageHeader *) &ibuf[mst->off];
+    want = ntohs (hdr->size);
+    if (want < sizeof (struct GNUNET_MessageHeader))
     {
-    do_align:
-      if ( (mst->curr_buf - mst->off < sizeof (struct GNUNET_MessageHeader)) ||
-	   (0 != (mst->off % ALIGN_FACTOR)) )
-	{
-	  /* need to align or need more space */
-	  mst->pos -= mst->off;
-	  memmove (ibuf,
-		   &ibuf[mst->off],
-		   mst->pos);
-	  mst->off = 0;
-	}
-      if (mst->pos - mst->off < sizeof (struct GNUNET_MessageHeader))
-	{
-	  delta = GNUNET_MIN (sizeof (struct GNUNET_MessageHeader) - (mst->pos - mst->off),
-			      size);
-	  memcpy (&ibuf[mst->pos],
-		  buf,
-		  delta);
-	  mst->pos += delta;
-	  buf += delta;
-	  size -= delta;
-	}
-      if (mst->pos - mst->off < sizeof (struct GNUNET_MessageHeader))
-	{
-	  if (purge)
-	    {
-	      mst->off = 0;    
-	      mst->pos = 0;
-	    }
-	  return GNUNET_OK;
-	}
-      hdr = (const struct GNUNET_MessageHeader*) &ibuf[mst->off];
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
+    }
+    if (mst->curr_buf - mst->off < want)
+    {
+      /* need more space */
+      mst->pos -= mst->off;
+      memmove (ibuf, &ibuf[mst->off], mst->pos);
+      mst->off = 0;
+    }
+    if (want > mst->curr_buf)
+    {
+      mst->hdr = GNUNET_realloc (mst->hdr, want);
+      ibuf = (char *) mst->hdr;
+      mst->curr_buf = want;
+    }
+    hdr = (const struct GNUNET_MessageHeader *) &ibuf[mst->off];
+    if (mst->pos - mst->off < want)
+    {
+      delta = GNUNET_MIN (want - (mst->pos - mst->off), size);
+      memcpy (&ibuf[mst->pos], buf, delta);
+      mst->pos += delta;
+      buf += delta;
+      size -= delta;
+    }
+    if (mst->pos - mst->off < want)
+    {
+      if (purge)
+      {
+        mst->off = 0;
+        mst->pos = 0;
+      }
+      return GNUNET_OK;
+    }
+    if (one_shot == GNUNET_SYSERR)
+    {
+      /* cannot call callback again, but return value saying that
+       * we have another full message in the buffer */
+      ret = GNUNET_NO;
+      goto copy;
+    }
+    if (one_shot == GNUNET_YES)
+      one_shot = GNUNET_SYSERR;
+    mst->cb (mst->cb_cls, client_identity, hdr);
+    mst->off += want;
+    if (mst->off == mst->pos)
+    {
+      /* reset to beginning of buffer, it's free right now! */
+      mst->off = 0;
+      mst->pos = 0;
+    }
+  }
+  while (size > 0)
+  {
+#if DEBUG_SERVER_MST
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Server-mst has %u bytes left in inbound buffer\n",
+                (unsigned int) size);
+#endif
+    if (size < sizeof (struct GNUNET_MessageHeader))
+      break;
+    offset = (unsigned long) buf;
+    need_align = (0 != offset % ALIGN_FACTOR) ? GNUNET_YES : GNUNET_NO;
+    if (GNUNET_NO == need_align)
+    {
+      /* can try to do zero-copy and process directly from original buffer */
+      hdr = (const struct GNUNET_MessageHeader *) buf;
       want = ntohs (hdr->size);
       if (want < sizeof (struct GNUNET_MessageHeader))
-	{
-	  GNUNET_break_op (0);
-	  return GNUNET_SYSERR;
-	}
-      if (mst->curr_buf - mst->off < want)
-	{
-	  /* need more space */
-	  mst->pos -= mst->off;
-	  memmove (ibuf,
-		   &ibuf[mst->off],
-		   mst->pos);
-	  mst->off = 0;
-	}
-      if (want > mst->curr_buf)
-	{
-	  mst->hdr = GNUNET_realloc(mst->hdr, want);
-	  ibuf = (char*)mst->hdr;	  
-	  mst->curr_buf = want;
-	}
-      hdr = (const struct GNUNET_MessageHeader*) &ibuf[mst->off];
-      if (mst->pos - mst->off < want)
-	{
-	  delta = GNUNET_MIN (want - (mst->pos - mst->off),
-			      size);
-	  memcpy (&ibuf[mst->pos],
-		  buf,
-		  delta);
-	  mst->pos += delta;
-	  buf += delta;
-	  size -= delta;
-	}
-      if (mst->pos - mst->off < want)
-	{
-	  if (purge)
-	    {
-	      mst->off = 0;    
-	      mst->pos = 0;
-	    }
-	  return GNUNET_OK;
-	}
+      {
+        GNUNET_break_op (0);
+        mst->off = 0;
+        return GNUNET_SYSERR;
+      }
+      if (size < want)
+        break;                  /* or not, buffer incomplete, so copy to private buffer... */
       if (one_shot == GNUNET_SYSERR)
-	{
-	  /* cannot call callback again, but return value saying that
-	     we have another full message in the buffer */
-	  ret = GNUNET_NO;
-	  goto copy;
-	}
+      {
+        /* cannot call callback again, but return value saying that
+         * we have another full message in the buffer */
+        ret = GNUNET_NO;
+        goto copy;
+      }
       if (one_shot == GNUNET_YES)
-	one_shot = GNUNET_SYSERR;
+        one_shot = GNUNET_SYSERR;
       mst->cb (mst->cb_cls, client_identity, hdr);
-      mst->off += want;
-      if (mst->off == mst->pos)
-	{
-	  /* reset to beginning of buffer, it's free right now! */
-	  mst->off = 0;
-	  mst->pos = 0;
-	}
+      buf += want;
+      size -= want;
     }
-  while (size > 0)
+    else
     {
-#if DEBUG_SERVER_MST
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-		  "Server-mst has %u bytes left in inbound buffer\n",
-		  (unsigned int) size);
-#endif
-      if (size < sizeof (struct GNUNET_MessageHeader))
-	break;
-      offset = (unsigned long) buf;
-      need_align = (0 != offset % ALIGN_FACTOR) ? GNUNET_YES : GNUNET_NO;
-      if (GNUNET_NO == need_align)
-	{
-	  /* can try to do zero-copy and process directly from original buffer */
-	  hdr = (const struct GNUNET_MessageHeader *) buf;
-	  want = ntohs (hdr->size);
-	  if (want < sizeof (struct GNUNET_MessageHeader))
-	    {
-	      GNUNET_break_op (0);
-	      mst->off = 0;
-	      return GNUNET_SYSERR;
-	    }
-	  if (size < want)
-	    break; /* or not, buffer incomplete, so copy to private buffer... */
-	  if (one_shot == GNUNET_SYSERR)
-	    {
-	      /* cannot call callback again, but return value saying that
-		 we have another full message in the buffer */
-	      ret = GNUNET_NO;
-	      goto copy;
-	    }
-	  if (one_shot == GNUNET_YES)
-	    one_shot = GNUNET_SYSERR;
-	  mst->cb (mst->cb_cls, client_identity, hdr);
-	  buf += want;
-	  size -= want;
-	}
-      else
-	{
-	  /* need to copy to private buffer to align;
-	     yes, we go a bit more spagetti than usual here */
-	  goto do_align;
-	}
+      /* need to copy to private buffer to align;
+       * yes, we go a bit more spagetti than usual here */
+      goto do_align;
     }
- copy:
-  if ( (size > 0) && (! purge) )
+  }
+copy:
+  if ((size > 0) && (!purge))
+  {
+    if (size + mst->pos > mst->curr_buf)
     {
-      if (size + mst->pos > mst->curr_buf)
-	{
-	  mst->hdr = GNUNET_realloc(mst->hdr, size + mst->pos);
-	  ibuf = (char*)mst->hdr;	  
-	  mst->curr_buf = size + mst->pos;
-	}
-      GNUNET_assert (mst->pos + size <= mst->curr_buf);
-      memcpy (&ibuf[mst->pos], buf, size);
-      mst->pos += size;
+      mst->hdr = GNUNET_realloc (mst->hdr, size + mst->pos);
+      ibuf = (char *) mst->hdr;
+      mst->curr_buf = size + mst->pos;
     }
+    GNUNET_assert (mst->pos + size <= mst->curr_buf);
+    memcpy (&ibuf[mst->pos], buf, size);
+    mst->pos += size;
+  }
   if (purge)
-    mst->off = 0;    
+    mst->off = 0;
 #if DEBUG_SERVER_MST
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-	      "Server-mst leaves %u bytes in private buffer\n",
-	      (unsigned int) (mst->pos - mst->off));
+              "Server-mst leaves %u bytes in private buffer\n",
+              (unsigned int) (mst->pos - mst->off));
 #endif
   return ret;
 }