From 9479dd376889c9d2cfb25bae8bd8b0a570118b3f Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Tue, 19 Feb 2008 23:01:07 +0000
Subject:  r18226@catbus:  nickm | 2008-02-19 18:01:01 -0500  Brown-paper-bag
 time.  We were failing to count all the sockets from accept().

svn:r13595
---
 src/common/compat.c | 55 ++++++++++++++++++++++++++++++++++++-----------------
 src/common/compat.h |  1 +
 2 files changed, 39 insertions(+), 17 deletions(-)

(limited to 'src/common')

diff --git a/src/common/compat.c b/src/common/compat.c
index 691a3f6b4..aa84b7a96 100644
--- a/src/common/compat.c
+++ b/src/common/compat.c
@@ -546,6 +546,29 @@ tor_close_socket(int s)
   return r;
 }
 
+#ifdef DEBUG_SOCKET_COUNTING
+static INLINE void
+mark_socket_open(int s)
+{
+  if (s > max_socket) {
+    if (max_socket == -1) {
+      open_sockets = bitarray_init_zero(s+128);
+      max_socket = s+128;
+    } else {
+      open_sockets = bitarray_expand(open_sockets, max_socket, s+128);
+      max_socket = s+128;
+    }
+  }
+  if (bitarray_is_set(open_sockets, s)) {
+    log_warn(LD_BUG, "I thought that %d was already open, but socket() just "
+             "gave it to me!", s);
+  }
+  bitarray_set(open_sockets, s);
+}
+#else
+#define mark_socket_open(s) STMT_NIL
+#endif
+
 /** As socket(), but counts the number of open sockets. */
 int
 tor_open_socket(int domain, int type, int protocol)
@@ -553,22 +576,19 @@ tor_open_socket(int domain, int type, int protocol)
   int s = socket(domain, type, protocol);
   if (s >= 0) {
     ++n_sockets_open;
-#ifdef DEBUG_SOCKET_COUNTING
-    if (s > max_socket) {
-      if (max_socket == -1) {
-        open_sockets = bitarray_init_zero(s+128);
-        max_socket = s+128;
-      } else {
-        open_sockets = bitarray_expand(open_sockets, max_socket, s+128);
-        max_socket = s+128;
-      }
-    }
-    if (bitarray_is_set(open_sockets, s)) {
-      log_warn(LD_BUG, "I thought that %d was already open, but socket() just "
-               "gave it to me!", s);
-    }
-    bitarray_set(open_sockets, s);
-#endif
+    mark_socket_open(s);
+  }
+  return s;
+}
+
+/** As socket(), but counts the number of open sockets. */
+int
+tor_accept_socket(int sockfd, struct sockaddr *addr, socklen_t *len)
+{
+  int s = accept(sockfd, addr, len);
+  if (s >= 0) {
+    ++n_sockets_open;
+    mark_socket_open(s);
   }
   return s;
 }
@@ -676,7 +696,8 @@ tor_socketpair(int family, int type, int protocol, int fd[2])
       goto tidy_up_and_fail;
 
     size = sizeof(listen_addr);
-    acceptor = accept(listener, (struct sockaddr *) &listen_addr, &size);
+    acceptor = tor_accept_socket(listener,
+                                 (struct sockaddr *) &listen_addr, &size);
     if (acceptor < 0)
       goto tidy_up_and_fail;
     if (size != sizeof(listen_addr))
diff --git a/src/common/compat.h b/src/common/compat.h
index c705e047d..7be7fddcd 100644
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -257,6 +257,7 @@ int touch_file(const char *fname);
 
 int tor_close_socket(int s);
 int tor_open_socket(int domain, int type, int protocol);
+int tor_accept_socket(int sockfd, struct sockaddr *addr, socklen_t *len);
 int get_n_open_sockets(void);
 
 #ifdef USE_BSOCKETS
-- 
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