Add cs_create_host_proxy

This is similar to cs_create_host but allows a proxy to be given.
Comstack type is still taken from vhost (logical host).

diff --git a/include/yaz/comstack.h b/include/yaz/comstack.h
index ed5065b..6aef53e 100644 (file)
--- a/include/yaz/comstack.h
+++ b/include/yaz/comstack.h
@@ -122,6 +122,10 @@ YAZ_EXPORT const char *cs_strerror(COMSTACK h);
 YAZ_EXPORT const char *cs_errmsg(int n);
 YAZ_EXPORT COMSTACK cs_create_host(const char *type_and_host, 
                                    int blocking, void **vp);
+
+YAZ_EXPORT COMSTACK cs_create_host_proxy(const char *vhost,
+                                         int blocking, void **vp,
+                                         const char *proxy_host);
 YAZ_EXPORT void cs_get_host_args(const char *type_and_host, const char **args);
 YAZ_EXPORT int cs_complete_auto_head(const char *buf, int len);
 YAZ_EXPORT int cs_complete_auto(const char *buf, int len);

diff --git a/src/comstack.c b/src/comstack.c
index 669117d..b81e89c 100644 (file)
--- a/src/comstack.c
+++ b/src/comstack.c
@@ -157,6 +157,12 @@ static int cs_parse_host(const char *uri, const char **host,
 
 COMSTACK cs_create_host(const char *vhost, int blocking, void **vp)
 {
+    return cs_create_host_proxy(vhost, blocking, vp, 0);
+}
+
+COMSTACK cs_create_host_proxy(const char *vhost, int blocking, void **vp,
+                              const char *proxy_host)
+{
     enum oid_proto proto = PROTO_Z3950;
     const char *host = 0;
     COMSTACK cs;
@@ -175,6 +181,8 @@ COMSTACK cs_create_host(const char *vhost, int blocking, void **vp)
     }
     if (cs)
     {
+        if (proxy_host)
+            host = proxy_host;
         if (!(*vp = cs_straddr(cs, connect_host ? connect_host : host)))
         {
             cs_close (cs);