From: Ulrich Drepper <drepper@redhat.com>
Date: Mon, 23 May 2005 16:40:54 +0000 (+0000)
Subject: * sunrpc/bindrsvprt.c (bindresvport): Try harder to find a port.
X-Git-Tag: cvs/fedora-glibc-20050524T1606~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3a0cd663c2abc74052d79747777141fad142c52f;p=thirdparty%2Fglibc.git

* sunrpc/bindrsvprt.c (bindresvport): Try harder to find a port.

	If we tried looking at the usual range without success extend the
	range to even lower ports.q
---

diff --git a/ChangeLog b/ChangeLog
index 5197818f0c5..e8ffccf8abf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2005-05-23  Ulrich Drepper  <drepper@redhat.com>
 
+	* sunrpc/bindrsvprt.c (bindresvport): Try harder to find a port.
+	If we tried looking at the usual range without success extend the
+	range to even lower ports.q
+
 	* sysdeps/unix/clock_gettime.c (clock_gettime): Revert last patch.
 
 2005-05-22  Andreas Schwab  <schwab@suse.de>
diff --git a/sunrpc/bindrsvprt.c b/sunrpc/bindrsvprt.c
index 374518716ef..671f229aae7 100644
--- a/sunrpc/bindrsvprt.c
+++ b/sunrpc/bindrsvprt.c
@@ -49,8 +49,10 @@ bindresvport (int sd, struct sockaddr_in *sin)
   int i;
 
 #define STARTPORT 600
+#define LOWPORT 200
 #define ENDPORT (IPPORT_RESERVED - 1)
 #define NPORTS	(ENDPORT - STARTPORT + 1)
+  static short startport = STARTPORT;
 
   if (sin == (struct sockaddr_in *) 0)
     {
@@ -71,16 +73,25 @@ bindresvport (int sd, struct sockaddr_in *sin)
   res = -1;
   __set_errno (EADDRINUSE);
 
-  for (i = 0; i < NPORTS && res < 0 && errno == EADDRINUSE; ++i)
+  int nports = ENDPORT - startport + 1;
+ again:
+  for (i = 0; i < nports && res < 0 && errno == EADDRINUSE; ++i)
     {
       sin->sin_port = htons (port++);
       if (port > ENDPORT)
 	{
-	  port = STARTPORT;
+	  port = startport;
 	}
       res = __bind (sd, sin, sizeof (struct sockaddr_in));
     }
 
+  if (i == nports && startport != LOWPORT)
+    {
+      startport = LOWPORT;
+      nports = STARTPORT - LOWPORT;
+      goto again;
+    }
+
   return res;
 }
 libc_hidden_def (bindresvport)