Eliminate warnings from code generated by rpcgen

 - unused variable 'buf'
    - emit a declaration for `buf' on demand.
 - unused variable 'i'
    - declare i immediately before use
 - unused value from IXDR_PUT_
    - cast to (void)
 - type-punned pointer reference
    - cast to (void*) first :-(

diff --git a/tools/rpcgen/rpc_cout.c b/tools/rpcgen/rpc_cout.c
index cae87173c5915718e609c67c83951e506f3febf8..377ba0b405a3f37d305205811915afb2ceab9ee0 100644 (file)
--- a/tools/rpcgen/rpc_cout.c
+++ b/tools/rpcgen/rpc_cout.c
@@ -164,8 +164,6 @@ print_header(definition *def)
 
        if (Inline == 0)
                return;
-       /* May cause lint to complain. but  ... */
-       f_print(fout, "\t register int32_t *buf;\n\n");
 }
 
 static void
@@ -266,7 +264,8 @@ print_ifstat(int indent, char *prefix, char *type, relation rel,
                        } else {
                                print_ifopen(indent, "array");
                        }
-                       print_ifarg("(char **)");
+                       /* The (void*) avoids a gcc-4.1 warning */
+                       print_ifarg("(char **)(void*)");
                        if (*objname == '&') {
                                f_print(fout, "%s.%s_val, (u_int *)%s.%s_len",
                                        objname, name, objname, name);
@@ -390,18 +389,13 @@ emit_struct(definition *def)
        char           *sizestr, *plus;
        char            ptemp[256];
        int             can_inline;
+       const char      *buf_declaration;
 
 
        if (Inline == 0) {
                for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
                        print_stat(1, &dl->decl);
        } else {
-
-               for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
-                       if (dl->decl.rel == REL_VECTOR) {
-                               f_print(fout, "\t int i;\n");
-                               break;
-                       }
                size = 0;
                can_inline = 0;
                for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
@@ -444,6 +438,7 @@ emit_struct(definition *def)
                        i = 0;
                        size = 0;
                        sizestr = NULL;
+                       buf_declaration = "int32_t *";
                        for (dl = def->def.st.decls; dl != NULL; dl = dl->next) {       /* xxx */
 
                                /* now walk down the list and check for basic types */
@@ -497,16 +492,17 @@ emit_struct(definition *def)
 
                                                        /* were already looking at a xdr_inlineable structure */
                                                        if (sizestr == NULL)
-                                                               f_print(fout, "\t buf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
-                                                                       size);
+                                                               f_print(fout, "\t %sbuf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
+                                                                       buf_declaration, size);
                                                        else if (size == 0)
                                                                f_print(fout,
-                                                                       "\t buf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
-                                                                       sizestr);
+                                                                       "\t %sbuf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
+                                                                       buf_declaration, sizestr);
                                                        else
                                                                f_print(fout,
-                                                                       "\t buf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
-                                                                       size, sizestr);
+                                                                       "\t %sbuf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
+                                                                       buf_declaration, size, sizestr);
+                                                       buf_declaration = "";
 
                                                        f_print(fout, "\n\t   if (buf == NULL) {\n");
 
@@ -546,16 +542,17 @@ emit_struct(definition *def)
 
                                        /* were already looking at a xdr_inlineable structure */
                                        if (sizestr == NULL)
-                                               f_print(fout, "\t\tbuf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
-                                                       size);
+                                               f_print(fout, "\t\t%sbuf = XDR_INLINE(xdrs,%d * BYTES_PER_XDR_UNIT);",
+                                                       buf_declaration, size);
                                        else if (size == 0)
                                                f_print(fout,
-                                                       "\t\tbuf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
-                                                       sizestr);
+                                                       "\t\t%sbuf = XDR_INLINE(xdrs,%s * BYTES_PER_XDR_UNIT);",
+                                                       buf_declaration, sizestr);
                                        else
                                                f_print(fout,
-                                                       "\t\tbuf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
-                                                       size, sizestr);
+                                                       "\t\t%sbuf = XDR_INLINE(xdrs,(%d + %s)* BYTES_PER_XDR_UNIT);",
+                                                       buf_declaration, size, sizestr);
+                                       buf_declaration = "";
 
                                        f_print(fout, "\n\t\tif (buf == NULL) {\n");
 
@@ -632,6 +629,7 @@ emit_inline(declaration *decl, int flag)
                break;
        case REL_VECTOR:
                f_print(fout, "\t\t{ register %s *genp; \n", decl->type);
+               f_print(fout, "\t\t  int i;\n");
                f_print(fout, "\t\t  for ( i = 0,genp=objp->%s;\n \t\t\ti < %s; i++){\n\t\t",
                        decl->name, decl->array_max);
                emit_single_in_line(decl, flag, REL_VECTOR);
@@ -649,7 +647,7 @@ emit_single_in_line(declaration *decl, int flag, relation rel)
        int freed=0;
 
        if(flag == PUT)
-               f_print(fout,"\t\t IXDR_PUT_");
+               f_print(fout,"\t\t (void) IXDR_PUT_");
        else    
                if(rel== REL_ALIAS)
                        f_print(fout,"\t\t objp->%s = IXDR_GET_",decl->name);