SOURCES: libtirpc-more-ports.patch (NEW) - Added a optimization to...

[baggins]

Author: baggins                      Date: Tue May  8 11:49:39 2007 GMT
Module: SOURCES                       Tag: HEAD
---- Log message:
- Added a optimization to bindresvport that allows more ports to be tried.

---- Files affected:
SOURCES:
   libtirpc-more-ports.patch (NONE -> 1.1)  (NEW)

---- Diffs:

================================================================
Index: SOURCES/libtirpc-more-ports.patch
diff -u /dev/null SOURCES/libtirpc-more-ports.patch:1.1
--- /dev/null	Tue May  8 13:49:39 2007
+++ SOURCES/libtirpc-more-ports.patch	Tue May  8 13:49:34 2007
@@ -0,0 +1,55 @@
+diff --git a/src/bindresvport.c b/src/bindresvport.c
+index b197efa..bc75d29 100644
+--- a/src/bindresvport.c
++++ b/src/bindresvport.c
+@@ -62,6 +62,7 @@ bindresvport(sd, sin)
+ #ifdef __linux__
+ 
+ #define STARTPORT 600
++#define LOWPORT 512
+ #define ENDPORT (IPPORT_RESERVED - 1)
+ #define NPORTS  (ENDPORT - STARTPORT + 1)
+ 
+@@ -76,10 +77,13 @@ bindresvport_sa(sd, sa)
+ #ifdef INET6
+ 	struct sockaddr_in6 *sin6;
+ #endif
+-	u_int16_t port;
+ 	u_int16_t *portp;
++	static u_int16_t port;
++	static short startport = STARTPORT;
+ 	socklen_t salen;
+-        int i;
++	int nports = ENDPORT - startport + 1;
++	int endport = ENDPORT;
++	int i;
+ 
+         if (sa == NULL) {
+                 salen = sizeof(myaddr);
+@@ -119,13 +123,22 @@ bindresvport_sa(sd, sa)
+         }
+         res = -1;
+         errno = EADDRINUSE;
+-        for (i = 0; i < NPORTS && res < 0 && errno == EADDRINUSE; i++) {
++		again:
++        for (i = 0; i < nports; ++i) {
+                 *portp = htons(port++);
+-                if (port > ENDPORT) {
+-                        port = STARTPORT;
+-                }
++                 if (port > endport) 
++                        port = startport;
+                 res = bind(sd, sa, salen);
++		if (res >= 0 || errno != EADDRINUSE)
++	                break;
+         }
++	if (i == nports && startport != LOWPORT) {
++	    startport = LOWPORT;
++	    endport = STARTPORT - 1;
++	    nports = STARTPORT - LOWPORT;
++	    port = LOWPORT + port % (STARTPORT - LOWPORT);
++	    goto again;
++	}
+         return (res);
+ }
+ #else
================================================================