Change declaration of function map

Newer compilers complain if funciton is declared w/o arguments,
so we redeclare the xdrptoc_t as xdrfn and give it proper arguments

Signed-off-by: Simo Sorce <simo@redhat.com>

Author: simo5

rpcgen/gp_xdr.h

@@ -5,6 +5,10 @@
 
 #include "gssrpc/rpc.h"
 
+/* Equivalent to xdrptoc_t but with proper arguments so that modern
+ * compilers do not complain */
+typedef int xdrfn(XDR *, void *);
+
 #define xdr_u_quad_t gp_xdr_uint64_t
 
 bool_t gp_xdr_uint64_t(XDR *xdrs, uint64_t *objp);

src/client/gpm_common.c

@@ -676,6 +676,8 @@ int gpm_make_call(int proc, union gp_rpc_arg *arg, union gp_rpc_res *res)
     gp_rpc_msg msg;
     XDR xdr_call_ctx = {0};
     XDR xdr_reply_ctx = {0};
+    xdrfn *arg_fn;
+    xdrfn *res_fn;
     char *send_buffer = NULL;
     char *recv_buffer = NULL;
     uint32_t send_length;
@@ -726,7 +728,8 @@ int gpm_make_call(int proc, union gp_rpc_arg *arg, union gp_rpc_res *res)
     }
 
     /* encode data */
-    xdrok = gpm_xdr_set[proc].arg_fn(&xdr_call_ctx, (char *)arg);
+    arg_fn = gpm_xdr_set[proc].arg_fn;
+    xdrok = arg_fn(&xdr_call_ctx, arg);
     if (!xdrok) {
         ret = EINVAL;
         goto done;
@@ -765,7 +768,8 @@ int gpm_make_call(int proc, union gp_rpc_arg *arg, union gp_rpc_res *res)
     }
 
     /* decode answer */
-    xdrok = gpm_xdr_set[proc].res_fn(&xdr_reply_ctx, (char *)res);
+    res_fn = gpm_xdr_set[proc].res_fn;
+    xdrok = res_fn(&xdr_reply_ctx, res);
     if (!xdrok) {
         ret = EINVAL;
     }

src/gp_rpc_process.c

@@ -196,6 +196,7 @@ static int gp_rpc_decode_call(XDR *xdr_call_ctx,
                               gp_rpc_accept_status *acc,
                               gp_rpc_reject_status *rej)
 {
+    xdrfn *arg_fn;
     bool xdrok;
     int ret;
 
@@ -204,7 +205,8 @@ static int gp_rpc_decode_call(XDR *xdr_call_ctx,
         return ret;
     }
 
-    xdrok = gp_xdr_set[*proc].arg_fn(xdr_call_ctx, (char *)arg);
+    arg_fn = gp_xdr_set[*proc].arg_fn;
+    xdrok = arg_fn(xdr_call_ctx, arg);
     if (!xdrok) {
         *acc = GP_RPC_GARBAGE_ARGS;
         return EINVAL;
@@ -283,6 +285,7 @@ static int gp_rpc_encode_reply(XDR *xdr_reply_ctx,
                                gp_rpc_accept_status acc,
                                gp_rpc_reject_status rej)
 {
+    xdrfn *res_fn;
     bool xdrok;
     int ret;
 
@@ -291,7 +294,8 @@ static int gp_rpc_encode_reply(XDR *xdr_reply_ctx,
         return ret;
     }
 
-    xdrok = gp_xdr_set[proc].res_fn(xdr_reply_ctx, (char *)res);
+    res_fn = gp_xdr_set[proc].res_fn;
+    xdrok = res_fn(xdr_reply_ctx, res);
 
     if (!xdrok) {
         return gp_rpc_encode_reply_header(xdr_reply_ctx, xid, EINVAL,