Attempt an even more comprehensive fix for a bug in Solaris:

If the remote end RST's a TCP connection, all socket related syscalls
seems to return EINVAL.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4868 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_vrt.c

@@ -696,10 +696,12 @@ VRT_r_client_ip(const struct sess *sp)
 struct sockaddr *
 VRT_r_server_ip(struct sess *sp)
 {
+	int i;
 
-	if (sp->mysockaddr->sa_family == AF_UNSPEC)
-		assert(!getsockname(sp->fd, sp->mysockaddr, &sp->mysockaddrlen)
-		    || errno == ECONNRESET);
+	if (sp->mysockaddr->sa_family == AF_UNSPEC) {
+		i = getsockname(sp->fd, sp->mysockaddr, &sp->mysockaddrlen);
+		assert(TCP_Check(i));
+	}
 
 	return (sp->mysockaddr);
 }

bin/varnishtest/vtc_server.c

@@ -85,7 +85,7 @@ server_thread(void *priv)
 {
 	struct server *s;
 	struct vtclog *vl;
-	int i, fd;
+	int i, j, fd;
 	struct sockaddr_storage addr_s;
 	struct sockaddr *addr;
 	socklen_t l;
@@ -107,8 +107,9 @@ server_thread(void *priv)
 		vtc_log(vl, 3, "accepted fd %d", fd);
 		http_process(vl, s->spec, fd, s->sock);
 		vtc_log(vl, 3, "shutting fd %d", fd);
-		assert((shutdown(fd, SHUT_WR) == 0)
-		    || errno == ENOTCONN || errno == ECONNRESET);
+		j = shutdown(fd, SHUT_WR);
+		if (!TCP_Check(j))
+			vtc_log(vl, 0, "Shutdown failed: %s", strerror(errno));
 		TCP_close(&fd);
 	}
 	macro_def(s->vl, s->name, "addr", NULL);

include/libvarnish.h

@@ -60,7 +60,16 @@ int SUB_run(struct vsb *sb, sub_func_f *func, void *priv, const char *name,
 #define TCP_ADDRBUFSIZE		64
 #define TCP_PORTBUFSIZE		16
 
+#if defined (__SVR4) && defined (__sun)
+/*
+ * Solaris returns EINVAL if the other end unexepectedly reset the
+ * connection.  This is a bug in Solaris.
+ */
+#define TCP_Check(a) ((a) == 0 || errno == ECONNRESET || errno == ENOTCONN \
+    || errno == EINVAL)
+#else
 #define TCP_Check(a) ((a) == 0 || errno == ECONNRESET || errno == ENOTCONN)
+#endif
 
 #define TCP_Assert(a) assert(TCP_Check(a))
 

lib/libvarnish/tcp.c

@@ -236,9 +236,11 @@ TCP_connect(int s, const struct sockaddr *name, socklen_t namelen, int msec)
 void
 TCP_close(int *s)
 {
-	assert (close(*s) == 0 ||
-	    errno == ECONNRESET ||
-	    errno == ENOTCONN);
+	int i;
+
+	i = close(*s);
+
+	assert (TCP_Check(i));
 	*s = -1;
 }