[or-cvs] r9306: Fix an assert error introduced in 0.1.2.5-alpha: if a single (in tor/trunk: . src/common)

[arma at seul.org]

Author: arma
Date: 2007-01-08 19:50:50 -0500 (Mon, 08 Jan 2007)
New Revision: 9306

Modified:
   tor/trunk/ChangeLog
   tor/trunk/src/common/tortls.c
Log:
Fix an assert error introduced in 0.1.2.5-alpha: if a single TLS
connection handles more than 4 gigs in either direction, we assert.


Modified: tor/trunk/ChangeLog
===================================================================
--- tor/trunk/ChangeLog	2007-01-09 00:37:13 UTC (rev 9305)
+++ tor/trunk/ChangeLog	2007-01-09 00:50:50 UTC (rev 9306)
@@ -31,6 +31,8 @@
       excess load to the exit nodes.
 
   o Major bugfixes:
+    - Fix an assert error introduced in 0.1.2.5-alpha: if a single TLS
+      connection handles more than 4 gigs in either direction, we assert.
     - Fix an assert error introduced in 0.1.2.5-alpha: if you're an
       advertised exit node, somebody might try to exit from you when
       you're bootstrapping and before you've built your descriptor yet.

Modified: tor/trunk/src/common/tortls.c
===================================================================
--- tor/trunk/src/common/tortls.c	2007-01-09 00:37:13 UTC (rev 9305)
+++ tor/trunk/src/common/tortls.c	2007-01-09 00:50:50 UTC (rev 9306)
@@ -871,12 +871,11 @@
   unsigned long r, w;
   r = BIO_number_read(SSL_get_rbio(tls->ssl));
   w = BIO_number_written(SSL_get_wbio(tls->ssl));
-  /* If we wrapped around, this should still give us the right answer, unless
+  /* We are ok with letting these unsigned ints go "negative" here:
+   * If we wrapped around, this should still give us the right answer, unless
    * we wrapped around by more than ULONG_MAX since the last time we called
    * this function.
    */
-  tor_assert(r >= tls->last_read_count);
-  tor_assert(w >= tls->last_write_count);
   *n_read = (size_t)(r - tls->last_read_count);
   *n_written = (size_t)(w - tls->last_write_count);
   tls->last_read_count = r;