typegen.c 106 KB
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/*
 * Format String Generator for IDL Compiler
 *
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 * Copyright 2005-2006 Eric Kohl
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 * Copyright 2005-2006 Robert Shearman
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

#include "config.h"
#include "wine/port.h"

#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <assert.h>
#include <ctype.h>
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#include <limits.h>
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#include "widl.h"
#include "utils.h"
#include "parser.h"
#include "header.h"
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#include "wine/list.h"
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#include "typegen.h"
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#include "expr.h"
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static const func_t *current_func;
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static const type_t *current_structure;
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static const type_t *current_iface;
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static struct list expr_eval_routines = LIST_INIT(expr_eval_routines);
struct expr_eval_routine
{
    struct list entry;
    const type_t *structure;
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    unsigned int baseoff;
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    const expr_t *expr;
};
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static size_t fields_memsize(const var_list_t *fields, unsigned int *align);
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static size_t write_struct_tfs(FILE *file, type_t *type, const char *name, unsigned int *tfsoff);
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static int write_embedded_types(FILE *file, const attr_list_t *attrs, type_t *type,
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                                const char *name, int write_ptr, unsigned int *tfsoff);
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static const var_t *find_array_or_string_in_struct(const type_t *type);
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static size_t write_string_tfs(FILE *file, const attr_list_t *attrs,
                               type_t *type,
                               const char *name, unsigned int *typestring_offset);
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const char *string_of_type(unsigned char type)
{
    switch (type)
    {
    case RPC_FC_BYTE: return "FC_BYTE";
    case RPC_FC_CHAR: return "FC_CHAR";
    case RPC_FC_SMALL: return "FC_SMALL";
    case RPC_FC_USMALL: return "FC_USMALL";
    case RPC_FC_WCHAR: return "FC_WCHAR";
    case RPC_FC_SHORT: return "FC_SHORT";
    case RPC_FC_USHORT: return "FC_USHORT";
    case RPC_FC_LONG: return "FC_LONG";
    case RPC_FC_ULONG: return "FC_ULONG";
    case RPC_FC_FLOAT: return "FC_FLOAT";
    case RPC_FC_HYPER: return "FC_HYPER";
    case RPC_FC_DOUBLE: return "FC_DOUBLE";
    case RPC_FC_ENUM16: return "FC_ENUM16";
    case RPC_FC_ENUM32: return "FC_ENUM32";
    case RPC_FC_IGNORE: return "FC_IGNORE";
    case RPC_FC_ERROR_STATUS_T: return "FC_ERROR_STATUS_T";
    case RPC_FC_RP: return "FC_RP";
    case RPC_FC_UP: return "FC_UP";
    case RPC_FC_OP: return "FC_OP";
    case RPC_FC_FP: return "FC_FP";
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    case RPC_FC_ENCAPSULATED_UNION: return "FC_ENCAPSULATED_UNION";
    case RPC_FC_NON_ENCAPSULATED_UNION: return "FC_NON_ENCAPSULATED_UNION";
    case RPC_FC_STRUCT: return "FC_STRUCT";
    case RPC_FC_PSTRUCT: return "FC_PSTRUCT";
    case RPC_FC_CSTRUCT: return "FC_CSTRUCT";
    case RPC_FC_CPSTRUCT: return "FC_CPSTRUCT";
    case RPC_FC_CVSTRUCT: return "FC_CVSTRUCT";
    case RPC_FC_BOGUS_STRUCT: return "FC_BOGUS_STRUCT";
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    case RPC_FC_SMFARRAY: return "FC_SMFARRAY";
    case RPC_FC_LGFARRAY: return "FC_LGFARRAY";
    case RPC_FC_SMVARRAY: return "FC_SMVARRAY";
    case RPC_FC_LGVARRAY: return "FC_LGVARRAY";
    case RPC_FC_CARRAY: return "FC_CARRAY";
    case RPC_FC_CVARRAY: return "FC_CVARRAY";
    case RPC_FC_BOGUS_ARRAY: return "FC_BOGUS_ARRAY";
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    case RPC_FC_ALIGNM4: return "FC_ALIGNM4";
    case RPC_FC_ALIGNM8: return "FC_ALIGNM8";
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    case RPC_FC_POINTER: return "FC_POINTER";
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    case RPC_FC_C_CSTRING: return "FC_C_CSTRING";
    case RPC_FC_C_WSTRING: return "FC_C_WSTRING";
    case RPC_FC_CSTRING: return "FC_CSTRING";
    case RPC_FC_WSTRING: return "FC_WSTRING";
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    default:
        error("string_of_type: unknown type 0x%02x\n", type);
        return NULL;
    }
}

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int is_struct(unsigned char type)
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{
    switch (type)
    {
    case RPC_FC_STRUCT:
    case RPC_FC_PSTRUCT:
    case RPC_FC_CSTRUCT:
    case RPC_FC_CPSTRUCT:
    case RPC_FC_CVSTRUCT:
    case RPC_FC_BOGUS_STRUCT:
        return 1;
    default:
        return 0;
    }
}

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static int is_non_complex_struct(const type_t *type)
{
    switch (type->type)
    {
    case RPC_FC_STRUCT:
    case RPC_FC_PSTRUCT:
    case RPC_FC_CSTRUCT:
    case RPC_FC_CPSTRUCT:
    case RPC_FC_CVSTRUCT:
        return 1;
    default:
        return 0;
    }
}

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int is_union(unsigned char type)
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{
    switch (type)
    {
    case RPC_FC_ENCAPSULATED_UNION:
    case RPC_FC_NON_ENCAPSULATED_UNION:
        return 1;
    default:
        return 0;
    }
}

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static int type_has_pointers(const type_t *type)
{
    if (is_user_type(type))
        return FALSE;
    else if (is_ptr(type))
        return TRUE;
    else if (is_array(type))
        return type_has_pointers(type->ref);
    else if (is_struct(type->type))
    {
        const var_t *field;
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        if (type->fields_or_args) LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
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        {
            if (type_has_pointers(field->type))
                return TRUE;
        }
    }
    else if (is_union(type->type))
    {
        var_list_t *fields;
        const var_t *field;
        if (type->type == RPC_FC_ENCAPSULATED_UNION)
        {
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            const var_t *uv = LIST_ENTRY(list_tail(type->fields_or_args), const var_t, entry);
            fields = uv->type->fields_or_args;
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        }
        else
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            fields = type->fields_or_args;
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        if (fields) LIST_FOR_EACH_ENTRY( field, fields, const var_t, entry )
        {
            if (field->type && type_has_pointers(field->type))
                return TRUE;
        }
    }

    return FALSE;
}

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static int type_has_full_pointer(const type_t *type)
{
    if (is_user_type(type))
        return FALSE;
    else if (type->type == RPC_FC_FP)
        return TRUE;
    else if (is_ptr(type))
        return FALSE;
    else if (is_array(type))
        return type_has_full_pointer(type->ref);
    else if (is_struct(type->type))
    {
        const var_t *field;
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        if (type->fields_or_args) LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
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        {
            if (type_has_full_pointer(field->type))
                return TRUE;
        }
    }
    else if (is_union(type->type))
    {
        var_list_t *fields;
        const var_t *field;
        if (type->type == RPC_FC_ENCAPSULATED_UNION)
        {
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            const var_t *uv = LIST_ENTRY(list_tail(type->fields_or_args), const var_t, entry);
            fields = uv->type->fields_or_args;
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        }
        else
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            fields = type->fields_or_args;
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        if (fields) LIST_FOR_EACH_ENTRY( field, fields, const var_t, entry )
        {
            if (field->type && type_has_full_pointer(field->type))
                return TRUE;
        }
    }

    return FALSE;
}

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static unsigned short user_type_offset(const char *name)
{
    user_type_t *ut;
    unsigned short off = 0;
    LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
    {
        if (strcmp(name, ut->name) == 0)
            return off;
        ++off;
    }
    error("user_type_offset: couldn't find type (%s)\n", name);
    return 0;
}

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static void update_tfsoff(type_t *type, unsigned int offset, FILE *file)
{
    type->typestring_offset = offset;
    if (file) type->tfswrite = FALSE;
}

static void guard_rec(type_t *type)
{
    /* types that contain references to themselves (like a linked list),
       need to be shielded from infinite recursion when writing embedded
       types  */
    if (type->typestring_offset)
        type->tfswrite = FALSE;
    else
        type->typestring_offset = 1;
}

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static type_t *get_user_type(const type_t *t, const char **pname)
{
    for (;;)
    {
        type_t *ut = get_attrp(t->attrs, ATTR_WIREMARSHAL);
        if (ut)
        {
            if (pname)
                *pname = t->name;
            return ut;
        }

        if (t->kind == TKIND_ALIAS)
            t = t->orig;
        else
            return 0;
    }
}

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int is_user_type(const type_t *t)
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{
    return get_user_type(t, NULL) != NULL;
}

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static int is_embedded_complex(const type_t *type)
{
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    unsigned char tc = type->type;
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    return is_struct(tc) || is_union(tc) || is_array(type) || is_user_type(type)
        || (is_ptr(type) && type->ref->type == RPC_FC_IP);
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}

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static const char *get_context_handle_type_name(const type_t *type)
{
    const type_t *t;
    for (t = type; is_ptr(t); t = t->ref)
        if (is_attr(t->attrs, ATTR_CONTEXTHANDLE))
            return t->name;
    assert(0);
    return NULL;
}

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#define WRITE_FCTYPE(file, fctype, typestring_offset) \
    do { \
        if (file) \
            fprintf(file, "/* %2u */\n", typestring_offset); \
        print_file((file), 2, "0x%02x,    /* " #fctype " */\n", RPC_##fctype); \
    } \
    while (0)

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static void print_file(FILE *file, int indent, const char *format, ...)
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{
    va_list va;
    va_start(va, format);
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    print(file, indent, format, va);
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    va_end(va);
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}

void print(FILE *file, int indent, const char *format, va_list va)
{
    if (file)
    {
        if (format[0] != '\n')
            while (0 < indent--)
                fprintf(file, "    ");
        vfprintf(file, format, va);
    }
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}

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static void write_var_init(FILE *file, int indent, const type_t *t, const char *n)
{
    if (decl_indirect(t))
        print_file(file, indent, "MIDL_memset(&%s, 0, sizeof(%s));\n", n, n);
    else if (is_ptr(t) || is_array(t))
        print_file(file, indent, "%s = 0;\n", n);
}

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void write_parameters_init(FILE *file, int indent, const func_t *func)
{
    const var_t *var;

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    if (!is_void(get_func_return_type(func)))
        write_var_init(file, indent, get_func_return_type(func), "_RetVal");
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    if (!func->args)
        return;

    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
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        write_var_init(file, indent, var->type, var->name);
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    fprintf(file, "\n");
}

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static void write_formatdesc(FILE *f, int indent, const char *str)
{
    print_file(f, indent, "typedef struct _MIDL_%s_FORMAT_STRING\n", str);
    print_file(f, indent, "{\n");
    print_file(f, indent + 1, "short Pad;\n");
    print_file(f, indent + 1, "unsigned char Format[%s_FORMAT_STRING_SIZE];\n", str);
    print_file(f, indent, "} MIDL_%s_FORMAT_STRING;\n", str);
    print_file(f, indent, "\n");
}

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void write_formatstringsdecl(FILE *f, int indent, const statement_list_t *stmts, type_pred_t pred)
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{
    print_file(f, indent, "#define TYPE_FORMAT_STRING_SIZE %d\n",
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               get_size_typeformatstring(stmts, pred));
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    print_file(f, indent, "#define PROC_FORMAT_STRING_SIZE %d\n",
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               get_size_procformatstring(stmts, pred));
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    fprintf(f, "\n");
    write_formatdesc(f, indent, "TYPE");
    write_formatdesc(f, indent, "PROC");
    fprintf(f, "\n");
    print_file(f, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;\n");
    print_file(f, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;\n");
    print_file(f, indent, "\n");
}

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static inline int is_base_type(unsigned char type)
{
    switch (type)
    {
    case RPC_FC_BYTE:
    case RPC_FC_CHAR:
    case RPC_FC_USMALL:
    case RPC_FC_SMALL:
    case RPC_FC_WCHAR:
    case RPC_FC_USHORT:
    case RPC_FC_SHORT:
    case RPC_FC_ULONG:
    case RPC_FC_LONG:
    case RPC_FC_HYPER:
    case RPC_FC_IGNORE:
    case RPC_FC_FLOAT:
    case RPC_FC_DOUBLE:
    case RPC_FC_ENUM16:
    case RPC_FC_ENUM32:
    case RPC_FC_ERROR_STATUS_T:
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    case RPC_FC_BIND_PRIMITIVE:
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        return TRUE;

    default:
        return FALSE;
    }
}

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int decl_indirect(const type_t *t)
{
    return is_user_type(t)
        || (!is_base_type(t->type)
            && !is_ptr(t)
            && !is_array(t));
}

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static size_t write_procformatstring_type(FILE *file, int indent,
                                          const char *name,
                                          const type_t *type,
                                          const attr_list_t *attrs,
                                          int is_return)
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{
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    size_t size;
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    int is_in = is_attr(attrs, ATTR_IN);
    int is_out = is_attr(attrs, ATTR_OUT);
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    if (!is_in && !is_out) is_in = TRUE;
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    if (!type->declarray && is_base_type(type->type))
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    {
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        if (is_return)
            print_file(file, indent, "0x53,    /* FC_RETURN_PARAM_BASETYPE */\n");
        else
            print_file(file, indent, "0x4e,    /* FC_IN_PARAM_BASETYPE */\n");

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        if (type->type == RPC_FC_BIND_PRIMITIVE)
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        {
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            print_file(file, indent, "0x%02x,    /* FC_IGNORE */\n", RPC_FC_IGNORE);
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            size = 2; /* includes param type prefix */
        }
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        else if (is_base_type(type->type))
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        {
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            print_file(file, indent, "0x%02x,    /* %s */\n", type->type, string_of_type(type->type));
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            size = 2; /* includes param type prefix */
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        }
        else
        {
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            error("Unknown/unsupported type: %s (0x%02x)\n", name, type->type);
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            size = 0;
        }
    }
    else
    {
        if (is_return)
            print_file(file, indent, "0x52,    /* FC_RETURN_PARAM */\n");
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        else if (is_in && is_out)
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            print_file(file, indent, "0x50,    /* FC_IN_OUT_PARAM */\n");
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        else if (is_out)
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            print_file(file, indent, "0x51,    /* FC_OUT_PARAM */\n");
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        else
            print_file(file, indent, "0x4d,    /* FC_IN_PARAM */\n");
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        print_file(file, indent, "0x01,\n");
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        print_file(file, indent, "NdrFcShort(0x%x),\n", type->typestring_offset);
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        size = 4; /* includes param type prefix */
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    }
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    return size;
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}

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static void write_procformatstring_stmts(FILE *file, int indent, const statement_list_t *stmts, type_pred_t pred)
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{
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    const statement_t *stmt;
    if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
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    {
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        if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
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        {
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            const func_t *func;
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            if (!pred(stmt->u.type))
                continue;
            if (stmt->u.type->funcs) LIST_FOR_EACH_ENTRY( func, stmt->u.type->funcs, const func_t, entry )
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            {
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                if (is_local(func->def->attrs)) continue;
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                /* emit argument data */
                if (func->args)
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                {
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                    const var_t *var;
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                    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
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                        write_procformatstring_type(file, indent, var->name, var->type, var->attrs, FALSE);
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                }
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                /* emit return value data */
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                if (is_void(get_func_return_type(func)))
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                {
                    print_file(file, indent, "0x5b,    /* FC_END */\n");
                    print_file(file, indent, "0x5c,    /* FC_PAD */\n");
                }
                else
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                    write_procformatstring_type(file, indent, "return value", get_func_return_type(func), NULL, TRUE);
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            }
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        }
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        else if (stmt->type == STMT_LIBRARY)
            write_procformatstring_stmts(file, indent, stmt->u.lib->stmts, pred);
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    }
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}

void write_procformatstring(FILE *file, const statement_list_t *stmts, type_pred_t pred)
{
    int indent = 0;

    print_file(file, indent, "static const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString =\n");
    print_file(file, indent, "{\n");
    indent++;
    print_file(file, indent, "0,\n");
    print_file(file, indent, "{\n");
    indent++;

    write_procformatstring_stmts(file, indent, stmts, pred);
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    print_file(file, indent, "0x0\n");
    indent--;
    print_file(file, indent, "}\n");
    indent--;
    print_file(file, indent, "};\n");
    print_file(file, indent, "\n");
}

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static int write_base_type(FILE *file, const type_t *type, unsigned int *typestring_offset)
{
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    if (is_base_type(type->type))
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    {
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        print_file(file, 2, "0x%02x,\t/* %s */\n", type->type, string_of_type(type->type));
        *typestring_offset += 1;
        return 1;
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    }
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    return 0;
}

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/* write conformance / variance descriptor */
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static size_t write_conf_or_var_desc(FILE *file, const type_t *structure,
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                                     unsigned int baseoff, const type_t *type,
                                     const expr_t *expr)
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{
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    unsigned char operator_type = 0;
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    unsigned char conftype = RPC_FC_NORMAL_CONFORMANCE;
    const char *conftype_string = "";
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    const char *operator_string = "no operators";
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    const expr_t *subexpr;
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    if (!expr)
    {
        print_file(file, 2, "NdrFcLong(0xffffffff),\t/* -1 */\n");
        return 4;
    }

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    if (!structure)
    {
        /* Top-level conformance calculations are done inline.  */
        print_file (file, 2, "0x%x,\t/* Corr desc: parameter */\n",
                    RPC_FC_TOP_LEVEL_CONFORMANCE);
        print_file (file, 2, "0x0,\n");
        print_file (file, 2, "NdrFcShort(0x0),\n");
        return 4;
    }
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    if (expr->is_const)
    {
        if (expr->cval > UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX)
            error("write_conf_or_var_desc: constant value %ld is greater than "
                  "the maximum constant size of %d\n", expr->cval,
                  UCHAR_MAX * (USHRT_MAX + 1) + USHRT_MAX);

        print_file(file, 2, "0x%x, /* Corr desc: constant, val = %ld */\n",
                   RPC_FC_CONSTANT_CONFORMANCE, expr->cval);
        print_file(file, 2, "0x%x,\n", expr->cval & ~USHRT_MAX);
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        print_file(file, 2, "NdrFcShort(0x%x),\n", expr->cval & USHRT_MAX);
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        return 4;
    }

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    if (is_ptr(type) || (is_array(type) && !type->declarray))
    {
        conftype = RPC_FC_POINTER_CONFORMANCE;
        conftype_string = "field pointer, ";
    }

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    subexpr = expr;
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    switch (subexpr->type)
    {
    case EXPR_PPTR:
        subexpr = subexpr->ref;
        operator_type = RPC_FC_DEREFERENCE;
        operator_string = "FC_DEREFERENCE";
        break;
    case EXPR_DIV:
        if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
        {
            subexpr = subexpr->ref;
            operator_type = RPC_FC_DIV_2;
            operator_string = "FC_DIV_2";
        }
        break;
    case EXPR_MUL:
        if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 2))
        {
            subexpr = subexpr->ref;
            operator_type = RPC_FC_MULT_2;
            operator_string = "FC_MULT_2";
        }
        break;
    case EXPR_SUB:
        if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
        {
            subexpr = subexpr->ref;
            operator_type = RPC_FC_SUB_1;
            operator_string = "FC_SUB_1";
        }
        break;
    case EXPR_ADD:
        if (subexpr->u.ext->is_const && (subexpr->u.ext->cval == 1))
        {
            subexpr = subexpr->ref;
            operator_type = RPC_FC_ADD_1;
            operator_string = "FC_ADD_1";
        }
        break;
    default:
        break;
    }

    if (subexpr->type == EXPR_IDENTIFIER)
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    {
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        const type_t *correlation_variable = NULL;
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        unsigned char correlation_variable_type;
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        unsigned char param_type = 0;
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        size_t offset = 0;
        const var_t *var;
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        if (structure->fields_or_args) LIST_FOR_EACH_ENTRY( var, structure->fields_or_args, const var_t, entry )
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        {
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            unsigned int align = 0;
            /* FIXME: take alignment into account */
            if (var->name && !strcmp(var->name, subexpr->u.sval))
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            {
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                correlation_variable = var->type;
                break;
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            }
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            offset += type_memsize(var->type, &align);
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        }
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        if (!correlation_variable)
            error("write_conf_or_var_desc: couldn't find variable %s in structure\n",
                  subexpr->u.sval);
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        correlation_variable = expr_resolve_type(NULL, structure, expr);

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        offset -= baseoff;
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        correlation_variable_type = correlation_variable->type;
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        switch (correlation_variable_type)
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        {
        case RPC_FC_CHAR:
        case RPC_FC_SMALL:
            param_type = RPC_FC_SMALL;
            break;
        case RPC_FC_BYTE:
        case RPC_FC_USMALL:
            param_type = RPC_FC_USMALL;
            break;
        case RPC_FC_WCHAR:
        case RPC_FC_SHORT:
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        case RPC_FC_ENUM16:
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            param_type = RPC_FC_SHORT;
            break;
        case RPC_FC_USHORT:
            param_type = RPC_FC_USHORT;
            break;
        case RPC_FC_LONG:
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        case RPC_FC_ENUM32:
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            param_type = RPC_FC_LONG;
            break;
        case RPC_FC_ULONG:
            param_type = RPC_FC_ULONG;
            break;
        default:
            error("write_conf_or_var_desc: conformance variable type not supported 0x%x\n",
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                correlation_variable_type);
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        }
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        print_file(file, 2, "0x%x, /* Corr desc: %s%s */\n",
                   conftype | param_type, conftype_string, string_of_type(param_type));
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        print_file(file, 2, "0x%x, /* %s */\n", operator_type, operator_string);
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        print_file(file, 2, "NdrFcShort(0x%x), /* offset = %d */\n",
                   offset, offset);
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    }
    else
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    {
        unsigned int callback_offset = 0;
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        struct expr_eval_routine *eval;
        int found = 0;
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        LIST_FOR_EACH_ENTRY(eval, &expr_eval_routines, struct expr_eval_routine, entry)
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        {
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            if (!strcmp (eval->structure->name, structure->name)
                && !compare_expr (eval->expr, expr))
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            {
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                found = 1;
                break;
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            }
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            callback_offset++;
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        }
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        if (!found)
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        {
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            eval = xmalloc (sizeof(*eval));
            eval->structure = structure;
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            eval->baseoff = baseoff;
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            eval->expr = expr;
            list_add_tail (&expr_eval_routines, &eval->entry);
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        }

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        if (callback_offset > USHRT_MAX)
            error("Maximum number of callback routines reached\n");

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        print_file(file, 2, "0x%x, /* Corr desc: %s */\n", conftype, conftype_string);
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        print_file(file, 2, "0x%x, /* %s */\n", RPC_FC_CALLBACK, "FC_CALLBACK");
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        print_file(file, 2, "NdrFcShort(0x%x), /* %u */\n", callback_offset, callback_offset);
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    }
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    return 4;
}

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static size_t fields_memsize(const var_list_t *fields, unsigned int *align)
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{
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    int have_align = FALSE;
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    size_t size = 0;
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    const var_t *v;

    if (!fields) return 0;
    LIST_FOR_EACH_ENTRY( v, fields, const var_t, entry )
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    {
        unsigned int falign = 0;
        size_t fsize = type_memsize(v->type, &falign);
        if (!have_align)
        {
            *align = falign;
            have_align = TRUE;
        }
        size = (size + (falign - 1)) & ~(falign - 1);
        size += fsize;
    }
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    size = (size + (*align - 1)) & ~(*align - 1);
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    return size;
}

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static size_t union_memsize(const var_list_t *fields, unsigned int *pmaxa)
{
    size_t size, maxs = 0;
    unsigned int align = *pmaxa;
    const var_t *v;

    if (fields) LIST_FOR_EACH_ENTRY( v, fields, const var_t, entry )
    {
        /* we could have an empty default field with NULL type */
        if (v->type)
        {
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            size = type_memsize(v->type, &align);
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            if (maxs < size) maxs = size;
            if (*pmaxa < align) *pmaxa = align;
        }
    }

    return maxs;
}

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int get_padding(const var_list_t *fields)
{
    unsigned short offset = 0;
    int salign = -1;
    const var_t *f;

    if (!fields)
        return 0;

    LIST_FOR_EACH_ENTRY(f, fields, const var_t, entry)
    {
        type_t *ft = f->type;
        unsigned int align = 0;
        size_t size = type_memsize(ft, &align);
        if (salign == -1)
            salign = align;
        offset = (offset + (align - 1)) & ~(align - 1);
        offset += size;
    }

    return ((offset + (salign - 1)) & ~(salign - 1)) - offset;
}

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size_t type_memsize(const type_t *t, unsigned int *align)
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{
    size_t size = 0;

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    if (t->declarray && is_conformant_array(t))
    {
        type_memsize(t->ref, align);
        size = 0;
    }
    else if (is_ptr(t) || is_conformant_array(t))
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    {
        size = sizeof(void *);
        if (size > *align) *align = size;
    }
    else switch (t->type)
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    {
    case RPC_FC_BYTE:
    case RPC_FC_CHAR:
    case RPC_FC_USMALL:
    case RPC_FC_SMALL:
        size = 1;
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        if (size > *align) *align = size;
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        break;
    case RPC_FC_WCHAR:
    case RPC_FC_USHORT:
    case RPC_FC_SHORT:
    case RPC_FC_ENUM16:
        size = 2;
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        if (size > *align) *align = size;
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        break;
    case RPC_FC_ULONG:
    case RPC_FC_LONG:
    case RPC_FC_ERROR_STATUS_T:
    case RPC_FC_ENUM32:
    case RPC_FC_FLOAT:
        size = 4;
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        if (size > *align) *align = size;
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        break;
    case RPC_FC_HYPER:
    case RPC_FC_DOUBLE:
        size = 8;
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        if (size > *align) *align = size;
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        break;
    case RPC_FC_STRUCT:
    case RPC_FC_CVSTRUCT:
    case RPC_FC_CPSTRUCT:
    case RPC_FC_CSTRUCT:
    case RPC_FC_PSTRUCT:
    case RPC_FC_BOGUS_STRUCT:
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        size = fields_memsize(t->fields_or_args, align);
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        break;
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    case RPC_FC_ENCAPSULATED_UNION:
    case RPC_FC_NON_ENCAPSULATED_UNION:
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        size = union_memsize(t->fields_or_args, align);
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        break;
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    case RPC_FC_SMFARRAY:
    case RPC_FC_LGFARRAY:
    case RPC_FC_SMVARRAY:
    case RPC_FC_LGVARRAY:
    case RPC_FC_BOGUS_ARRAY:
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        size = t->dim * type_memsize(t->ref, align);
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        break;
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    default:
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        error("type_memsize: Unknown type %d\n", t->type);
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        size = 0;
    }

    return size;
}

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int is_full_pointer_function(const func_t *func)
{
    const var_t *var;
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    if (type_has_full_pointer(get_func_return_type(func)))
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        return TRUE;
    if (!func->args)
        return FALSE;
    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
        if (type_has_full_pointer( var->type ))
            return TRUE;
    return FALSE;
}

void write_full_pointer_init(FILE *file, int indent, const func_t *func, int is_server)
{
    print_file(file, indent, "_StubMsg.FullPtrXlatTables = NdrFullPointerXlatInit(0,%s);\n",
                   is_server ? "XLAT_SERVER" : "XLAT_CLIENT");
    fprintf(file, "\n");
}

void write_full_pointer_free(FILE *file, int indent, const func_t *func)
{
    print_file(file, indent, "NdrFullPointerXlatFree(_StubMsg.FullPtrXlatTables);\n");
    fprintf(file, "\n");
}

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static unsigned int write_nonsimple_pointer(FILE *file, const type_t *type, size_t offset)
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{
    short absoff = type->ref->typestring_offset;
    short reloff = absoff - (offset + 2);
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    int ptr_attr = is_ptr(type->ref) ? 0x10 : 0x0;

    print_file(file, 2, "0x%02x, 0x%x,\t/* %s */\n",
               type->type, ptr_attr, string_of_type(type->type));
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    print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%hd) */\n",
               reloff, reloff, absoff);
    return 4;
}

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static unsigned int write_simple_pointer(FILE *file, const type_t *type)
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{
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    unsigned char fc = type->ref->type;
    /* for historical reasons, write_simple_pointer also handled string types,
     * but no longer does. catch bad uses of the function with this check */
    if (is_string_type(type->attrs, type))
        error("write_simple_pointer: can't handle type %s which is a string type\n", type->name);
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    print_file(file, 2, "0x%02x, 0x8,\t/* %s [simple_pointer] */\n",
               type->type, string_of_type(type->type));
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    print_file(file, 2, "0x%02x,\t/* %s */\n", fc, string_of_type(fc));
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    print_file(file, 2, "0x5c,\t/* FC_PAD */\n");
    return 4;
}

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static void print_start_tfs_comment(FILE *file, type_t *t, unsigned int tfsoff)
{
    print_file(file, 0, "/* %u (", tfsoff);
    write_type_decl(file, t, NULL);
    print_file(file, 0, ") */\n");
}

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static size_t write_pointer_tfs(FILE *file, type_t *type, unsigned int *typestring_offset)
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{
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    unsigned int offset = *typestring_offset;
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    print_start_tfs_comment(file, type, offset);
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    update_tfsoff(type, offset, file);
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    if (type->ref->typestring_offset)
        *typestring_offset += write_nonsimple_pointer(file, type, offset);
    else if (is_base_type(type->ref->type))
        *typestring_offset += write_simple_pointer(file, type);

    return offset;
}

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static int processed(const type_t *type)
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{
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    return type->typestring_offset && !type->tfswrite;
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}

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static int user_type_has_variable_size(const type_t *t)
{
    if (is_ptr(t))
        return TRUE;
    else
        switch (t->type)
        {
        case RPC_FC_PSTRUCT:
        case RPC_FC_CSTRUCT:
        case RPC_FC_CPSTRUCT:
        case RPC_FC_CVSTRUCT:
            return TRUE;
        }
    /* Note: Since this only applies to user types, we can't have a conformant
       array here, and strings should get filed under pointer in this case.  */
    return FALSE;
}

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static void write_user_tfs(FILE *file, type_t *type, unsigned int *tfsoff)
{
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    unsigned int start, absoff, flags;
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    unsigned int align = 0, ualign = 0;
    const char *name;
    type_t *utype = get_user_type(type, &name);
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    size_t usize = user_type_has_variable_size(utype) ? 0 : type_memsize(utype, &ualign);
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    size_t size = type_memsize(type, &align);
    unsigned short funoff = user_type_offset(name);
    short reloff;

    guard_rec(type);

    if (is_base_type(utype->type))
    {
        absoff = *tfsoff;
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        print_start_tfs_comment(file, utype, absoff);
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        print_file(file, 2, "0x%x,\t/* %s */\n", utype->type, string_of_type(utype->type));
        print_file(file, 2, "0x5c,\t/* FC_PAD */\n");
        *tfsoff += 2;
    }
    else
    {
        if (!processed(utype))
            write_embedded_types(file, NULL, utype, utype->name, TRUE, tfsoff);
        absoff = utype->typestring_offset;
    }

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    if (utype->type == RPC_FC_RP)
        flags = 0x40;
    else if (utype->type == RPC_FC_UP)
        flags = 0x80;
    else
        flags = 0;

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    start = *tfsoff;
    update_tfsoff(type, start, file);
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    print_start_tfs_comment(file, type, start);
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    print_file(file, 2, "0x%x,\t/* FC_USER_MARSHAL */\n", RPC_FC_USER_MARSHAL);
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    print_file(file, 2, "0x%x,\t/* Alignment= %d, Flags= %02x */\n",
               flags | (align - 1), align - 1, flags);
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    print_file(file, 2, "NdrFcShort(0x%hx),\t/* Function offset= %hu */\n", funoff, funoff);
    print_file(file, 2, "NdrFcShort(0x%lx),\t/* %lu */\n", size, size);
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    print_file(file, 2, "NdrFcShort(0x%lx),\t/* %lu */\n", usize, usize);
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    *tfsoff += 8;
    reloff = absoff - *tfsoff;
    print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n", reloff, reloff, absoff);
    *tfsoff += 2;
}

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static void write_member_type(FILE *file, const type_t *cont,
                              const attr_list_t *attrs, const type_t *type,
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                              unsigned int *corroff, unsigned int *tfsoff)
1029
{
1030
    if (is_embedded_complex(type) && !is_conformant_array(type))
1031
    {
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        size_t absoff;
        short reloff;

1035
        if (is_union(type->type) && is_attr(attrs, ATTR_SWITCHIS))
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        {
            absoff = *corroff;
            *corroff += 8;
        }
        else
        {
            absoff = type->typestring_offset;
        }
        reloff = absoff - (*tfsoff + 2);
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        print_file(file, 2, "0x4c,\t/* FC_EMBEDDED_COMPLEX */\n");
        /* FIXME: actually compute necessary padding */
        print_file(file, 2, "0x0,\t/* FIXME: padding */\n");
        print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n",
                   reloff, reloff, absoff);
        *tfsoff += 4;
    }
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    else if (is_ptr(type) || is_conformant_array(type))
1054
    {
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        unsigned char fc = (cont->type == RPC_FC_BOGUS_STRUCT
                            ? RPC_FC_POINTER
                            : RPC_FC_LONG);
        print_file(file, 2, "0x%x,\t/* %s */\n", fc, string_of_type(fc));
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        *tfsoff += 1;
    }
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    else if (!write_base_type(file, type, tfsoff))
        error("Unsupported member type 0x%x\n", type->type);
}

static void write_end(FILE *file, unsigned int *tfsoff)
{
    if (*tfsoff % 2 == 0)
    {
        print_file(file, 2, "0x%x,\t\t/* FC_PAD */\n", RPC_FC_PAD);
        *tfsoff += 1;
    }
    print_file(file, 2, "0x%x,\t\t/* FC_END */\n", RPC_FC_END);
    *tfsoff += 1;
}

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static void write_descriptors(FILE *file, type_t *type, unsigned int *tfsoff)
{
    unsigned int offset = 0;
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    var_list_t *fs = type->fields_or_args;
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    var_t *f;

    if (fs) LIST_FOR_EACH_ENTRY(f, fs, var_t, entry)
    {
        unsigned int align = 0;
        type_t *ft = f->type;
        if (is_union(ft->type) && is_attr(f->attrs, ATTR_SWITCHIS))
        {
            unsigned int absoff = ft->typestring_offset;
            short reloff = absoff - (*tfsoff + 6);
            print_file(file, 0, "/* %d */\n", *tfsoff);
            print_file(file, 2, "0x%x,\t/* %s */\n", ft->type, string_of_type(ft->type));
            print_file(file, 2, "0x%x,\t/* FIXME: always FC_LONG */\n", RPC_FC_LONG);
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            write_conf_or_var_desc(file, current_structure, offset, ft,
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                                   get_attrp(f->attrs, ATTR_SWITCHIS));
            print_file(file, 2, "NdrFcShort(%hd),\t/* Offset= %hd (%u) */\n",
                       reloff, reloff, absoff);
            *tfsoff += 8;
        }

        /* FIXME: take alignment into account */
        offset += type_memsize(ft, &align);
    }
}

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static int write_no_repeat_pointer_descriptions(
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    FILE *file, type_t *type,
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    size_t *offset_in_memory, size_t *offset_in_buffer,
    unsigned int *typestring_offset)
1109
{
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    int written = 0;
    unsigned int align;
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1113
    if (is_ptr(type) || (!type->declarray && is_conformant_array(type)))
1114
    {
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        print_file(file, 2, "0x%02x, /* FC_NO_REPEAT */\n", RPC_FC_NO_REPEAT);
        print_file(file, 2, "0x%02x, /* FC_PAD */\n", RPC_FC_PAD);

        /* pointer instance */
        print_file(file, 2, "NdrFcShort(0x%x), /* Memory offset = %d */\n", *offset_in_memory, *offset_in_memory);
        print_file(file, 2, "NdrFcShort(0x%x), /* Buffer offset = %d */\n", *offset_in_buffer, *offset_in_buffer);
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        *typestring_offset += 6;
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1123
        if (is_ptr(type))
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        {
            if (is_string_type(type->attrs, type))
                write_string_tfs(file, NULL, type, NULL, typestring_offset);
            else
                write_pointer_tfs(file, type, typestring_offset);
        }
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        else
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        {
            unsigned absoff = type->typestring_offset;
            short reloff = absoff - (*typestring_offset + 2);
            /* FIXME: get pointer attributes from field */
            print_file(file, 2, "0x%02x, 0x0,\t/* %s */\n", RPC_FC_UP, "FC_UP");
            print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
                       reloff, reloff, absoff);
            *typestring_offset += 4;
        }
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        align = 0;
        *offset_in_memory += type_memsize(type, &align);
        /* FIXME: is there a case where these two are different? */
        align = 0;
        *offset_in_buffer += type_memsize(type, &align);

        return 1;
    }

    if (is_non_complex_struct(type))
    {
        const var_t *v;
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        LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
1154
            written += write_no_repeat_pointer_descriptions(
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                file, v->type,
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                offset_in_memory, offset_in_buffer, typestring_offset);
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    }
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    else
    {
        align = 0;
        *offset_in_memory += type_memsize(type, &align);
        /* FIXME: is there a case where these two are different? */
        align = 0;
        *offset_in_buffer += type_memsize(type, &align);
    }

    return written;
}

static int write_pointer_description_offsets(
    FILE *file, const attr_list_t *attrs, type_t *type,
    size_t *offset_in_memory, size_t *offset_in_buffer,
    unsigned int *typestring_offset)
{
    int written = 0;
    unsigned int align;

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    if (is_ptr(type) && type->ref->type != RPC_FC_IP)
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    {
        if (offset_in_memory && offset_in_buffer)
        {
            /* pointer instance */
            /* FIXME: sometimes from end of structure, sometimes from beginning */
            print_file(file, 2, "NdrFcShort(0x%x), /* Memory offset = %d */\n", *offset_in_memory, *offset_in_memory);
            print_file(file, 2, "NdrFcShort(0x%x), /* Buffer offset = %d */\n", *offset_in_buffer, *offset_in_buffer);

            align = 0;
            *offset_in_memory += type_memsize(type, &align);
            /* FIXME: is there a case where these two are different? */
            align = 0;
            *offset_in_buffer += type_memsize(type, &align);
        }
        *typestring_offset += 4;

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        if (is_string_type(attrs, type))
            write_string_tfs(file, NULL, type, NULL, typestring_offset);
        else if (processed(type->ref) || is_base_type(type->ref->type))
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            write_pointer_tfs(file, type, typestring_offset);
        else
            error("write_pointer_description_offsets: type format string unknown\n");

        return 1;
    }

    if (is_array(type))
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    {
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        return write_pointer_description_offsets(
            file, attrs, type->ref, offset_in_memory, offset_in_buffer,
                                                 typestring_offset);
    }
    else if (is_non_complex_struct(type))
    {
        /* otherwise search for interesting fields to parse */
        const var_t *v;
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        LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
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        {
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            written += write_pointer_description_offsets(
                file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
                typestring_offset);
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        }
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    }
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    else
    {
        align = 0;
        if (offset_in_memory)
            *offset_in_memory += type_memsize(type, &align);
        /* FIXME: is there a case where these two are different? */
        align = 0;
        if (offset_in_buffer)
            *offset_in_buffer += type_memsize(type, &align);
    }
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    return written;
}

/* Note: if file is NULL return value is number of pointers to write, else
 * it is the number of type format characters written */
static int write_fixed_array_pointer_descriptions(
    FILE *file, const attr_list_t *attrs, type_t *type,
    size_t *offset_in_memory, size_t *offset_in_buffer,
    unsigned int *typestring_offset)
{
    unsigned int align;
    int pointer_count = 0;

    if (type->type == RPC_FC_SMFARRAY || type->type == RPC_FC_LGFARRAY)
    {
        unsigned int temp = 0;
        /* unfortunately, this needs to be done in two passes to avoid
         * writing out redundant FC_FIXED_REPEAT descriptions */
        pointer_count = write_pointer_description_offsets(
            NULL, attrs, type->ref, NULL, NULL, &temp);
        if (pointer_count > 0)
        {
            unsigned int increment_size;
            size_t offset_of_array_pointer_mem = 0;
            size_t offset_of_array_pointer_buf = 0;

            align = 0;
            increment_size = type_memsize(type->ref, &align);

            print_file(file, 2, "0x%02x, /* FC_FIXED_REPEAT */\n", RPC_FC_FIXED_REPEAT);
            print_file(file, 2, "0x%02x, /* FC_PAD */\n", RPC_FC_PAD);
            print_file(file, 2, "NdrFcShort(0x%x), /* Iterations = %d */\n", type->dim, type->dim);
            print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
            print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", *offset_in_memory, *offset_in_memory);
            print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
            *typestring_offset += 10;

            pointer_count = write_pointer_description_offsets(
                file, attrs, type, &offset_of_array_pointer_mem,
                &offset_of_array_pointer_buf, typestring_offset);
        }
    }
    else if (is_struct(type->type))
    {
        const var_t *v;
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        LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
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        {
            pointer_count += write_fixed_array_pointer_descriptions(
                file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
                typestring_offset);
        }
    }
    else
    {
        align = 0;
        if (offset_in_memory)
            *offset_in_memory += type_memsize(type, &align);
        /* FIXME: is there a case where these two are different? */
        align = 0;
        if (offset_in_buffer)
            *offset_in_buffer += type_memsize(type, &align);
    }

    return pointer_count;
}

/* Note: if file is NULL return value is number of pointers to write, else
 * it is the number of type format characters written */
static int write_conformant_array_pointer_descriptions(
    FILE *file, const attr_list_t *attrs, type_t *type,
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    size_t offset_in_memory, unsigned int *typestring_offset)
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{
    unsigned int align;
    int pointer_count = 0;

    if (is_conformant_array(type) && !type->length_is)
    {
        unsigned int temp = 0;
        /* unfortunately, this needs to be done in two passes to avoid
         * writing out redundant FC_VARIABLE_REPEAT descriptions */
        pointer_count = write_pointer_description_offsets(
            NULL, attrs, type->ref, NULL, NULL, &temp);
        if (pointer_count > 0)
        {
            unsigned int increment_size;
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            size_t offset_of_array_pointer_mem = offset_in_memory;
            size_t offset_of_array_pointer_buf = offset_in_memory;
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            align = 0;
            increment_size = type_memsize(type->ref, &align);

            if (increment_size > USHRT_MAX)
                error("array size of %u bytes is too large\n", increment_size);

            print_file(file, 2, "0x%02x, /* FC_VARIABLE_REPEAT */\n", RPC_FC_VARIABLE_REPEAT);
            print_file(file, 2, "0x%02x, /* FC_FIXED_OFFSET */\n", RPC_FC_FIXED_OFFSET);
            print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
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            print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", offset_in_memory, offset_in_memory);
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            print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
            *typestring_offset += 8;

            pointer_count = write_pointer_description_offsets(
                file, attrs, type->ref, &offset_of_array_pointer_mem,
                &offset_of_array_pointer_buf, typestring_offset);
        }
    }

    return pointer_count;
}

/* Note: if file is NULL return value is number of pointers to write, else
 * it is the number of type format characters written */
static int write_varying_array_pointer_descriptions(
    FILE *file, const attr_list_t *attrs, type_t *type,
    size_t *offset_in_memory, size_t *offset_in_buffer,
    unsigned int *typestring_offset)
{
    unsigned int align;
    int pointer_count = 0;

    /* FIXME: do varying array searching here, but pointer searching in write_pointer_description_offsets */

    if (is_array(type) && type->length_is)
    {
        unsigned int temp = 0;
        /* unfortunately, this needs to be done in two passes to avoid
         * writing out redundant FC_VARIABLE_REPEAT descriptions */
        pointer_count = write_pointer_description_offsets(
            NULL, attrs, type->ref, NULL, NULL, &temp);
        if (pointer_count > 0)
        {
            unsigned int increment_size;
            size_t offset_of_array_pointer_mem = 0;
            size_t offset_of_array_pointer_buf = 0;

            align = 0;
            increment_size = type_memsize(type->ref, &align);

            if (increment_size > USHRT_MAX)
                error("array size of %u bytes is too large\n", increment_size);

            print_file(file, 2, "0x%02x, /* FC_VARIABLE_REPEAT */\n", RPC_FC_VARIABLE_REPEAT);
            print_file(file, 2, "0x%02x, /* FC_VARIABLE_OFFSET */\n", RPC_FC_VARIABLE_OFFSET);
            print_file(file, 2, "NdrFcShort(0x%x), /* Increment = %d */\n", increment_size, increment_size);
            print_file(file, 2, "NdrFcShort(0x%x), /* Offset to array = %d */\n", *offset_in_memory, *offset_in_memory);
            print_file(file, 2, "NdrFcShort(0x%x), /* Number of pointers = %d */\n", pointer_count, pointer_count);
            *typestring_offset += 8;

            pointer_count = write_pointer_description_offsets(
                file, attrs, type, &offset_of_array_pointer_mem,
                &offset_of_array_pointer_buf, typestring_offset);
        }
    }
    else if (is_struct(type->type))
    {
        const var_t *v;
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        LIST_FOR_EACH_ENTRY( v, type->fields_or_args, const var_t, entry )
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        {
            pointer_count += write_varying_array_pointer_descriptions(
                file, v->attrs, v->type, offset_in_memory, offset_in_buffer,
                typestring_offset);
        }
    }
    else
    {
        align = 0;
        if (offset_in_memory)
            *offset_in_memory += type_memsize(type, &align);
        /* FIXME: is there a case where these two are different? */
        align = 0;
        if (offset_in_buffer)
            *offset_in_buffer += type_memsize(type, &align);
    }

    return pointer_count;
}

static void write_pointer_description(FILE *file, type_t *type,
                                      unsigned int *typestring_offset)
{
    size_t offset_in_buffer;
    size_t offset_in_memory;

    /* pass 1: search for single instance of a pointer (i.e. don't descend
     * into arrays) */
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    if (!is_array(type))
    {
        offset_in_memory = 0;
        offset_in_buffer = 0;
        write_no_repeat_pointer_descriptions(
            file, type,
            &offset_in_memory, &offset_in_buffer, typestring_offset);
    }
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    /* pass 2: search for pointers in fixed arrays */
    offset_in_memory = 0;
    offset_in_buffer = 0;
    write_fixed_array_pointer_descriptions(
        file, NULL, type,
        &offset_in_memory, &offset_in_buffer, typestring_offset);

    /* pass 3: search for pointers in conformant only arrays (but don't descend
     * into conformant varying or varying arrays) */
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    if ((!type->declarray || !current_structure) && is_conformant_array(type))
        write_conformant_array_pointer_descriptions(
            file, NULL, type, 0, typestring_offset);
    else if (type->type == RPC_FC_CPSTRUCT)
    {
        unsigned int align = 0;
        type_t *carray = find_array_or_string_in_struct(type)->type;
        write_conformant_array_pointer_descriptions(
            file, NULL, carray,
            type_memsize(type, &align),
            typestring_offset);
    }
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   /* pass 4: search for pointers in varying arrays */
    offset_in_memory = 0;
    offset_in_buffer = 0;
    write_varying_array_pointer_descriptions(
            file, NULL, type,
            &offset_in_memory, &offset_in_buffer, typestring_offset);
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}

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int is_declptr(const type_t *t)
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{
  return is_ptr(t) || (is_conformant_array(t) && !t->declarray);
}

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static size_t write_string_tfs(FILE *file, const attr_list_t *attrs,
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                               type_t *type,
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                               const char *name, unsigned int *typestring_offset)
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{
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    size_t start_offset;
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    unsigned char rtype;

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    if (is_declptr(type))
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    {
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        unsigned char flag = is_conformant_array(type) ? 0 : RPC_FC_P_SIMPLEPOINTER;
        int pointer_type = is_ptr(type) ? type->type : get_attrv(attrs, ATTR_POINTERTYPE);
        if (!pointer_type)
            pointer_type = RPC_FC_RP;
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        print_start_tfs_comment(file, type, *typestring_offset);
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        print_file(file, 2,"0x%x, 0x%x,\t/* %s%s */\n",
                   pointer_type, flag, string_of_type(pointer_type),
                   flag ? " [simple_pointer]" : "");
        *typestring_offset += 2;
        if (!flag)
        {
            print_file(file, 2, "NdrFcShort(0x2),\n");
            *typestring_offset += 2;
        }
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    }
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    start_offset = *typestring_offset;
    update_tfsoff(type, start_offset, file);

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    rtype = type->ref->type;
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    if ((rtype != RPC_FC_BYTE) && (rtype != RPC_FC_CHAR) && (rtype != RPC_FC_WCHAR))
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    {
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        error("write_string_tfs: Unimplemented for type 0x%x of name: %s\n", rtype, name);
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        return start_offset;
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    }

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    if (type->declarray && !is_conformant_array(type))
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    {
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        /* FIXME: multi-dimensional array */
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        if (0xffffuL < type->dim)
            error("array size for parameter %s exceeds %u bytes by %lu bytes\n",
                  name, 0xffffu, type->dim - 0xffffu);
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        if (rtype == RPC_FC_CHAR)
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            WRITE_FCTYPE(file, FC_CSTRING, *typestring_offset);
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        else
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            WRITE_FCTYPE(file, FC_WSTRING, *typestring_offset);
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        print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
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        *typestring_offset += 2;
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        print_file(file, 2, "NdrFcShort(0x%x), /* %d */\n", type->dim, type->dim);
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        *typestring_offset += 2;
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        return start_offset;
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    }
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    else if (type->size_is)
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    {
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        unsigned int align = 0;

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        if (rtype == RPC_FC_CHAR)
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            WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
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        else
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            WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
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        print_file(file, 2, "0x%x, /* FC_STRING_SIZED */\n", RPC_FC_STRING_SIZED);
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        *typestring_offset += 2;
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        *typestring_offset += write_conf_or_var_desc(
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            file, current_structure,
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            (type->declarray && current_structure
             ? type_memsize(current_structure, &align)
             : 0),
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            type, type->size_is);
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        return start_offset;
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    }
    else
    {
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        if (rtype == RPC_FC_WCHAR)
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            WRITE_FCTYPE(file, FC_C_WSTRING, *typestring_offset);
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        else
            WRITE_FCTYPE(file, FC_C_CSTRING, *typestring_offset);
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        print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
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        *typestring_offset += 2;
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        return start_offset;
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    }
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}

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static size_t write_array_tfs(FILE *file, const attr_list_t *attrs, type_t *type,
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                              const char *name, unsigned int *typestring_offset)
1552
{
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    const expr_t *length_is = type->length_is;
    const expr_t *size_is = type->size_is;
    unsigned int align = 0;
    size_t size;
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    size_t start_offset;
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    int has_pointer;
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    int pointer_type = get_attrv(attrs, ATTR_POINTERTYPE);
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    unsigned int baseoff
        = type->declarray && current_structure
        ? type_memsize(current_structure, &align)
        : 0;

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    if (!pointer_type)
        pointer_type = RPC_FC_RP;

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    if (write_embedded_types(file, attrs, type->ref, name, FALSE, typestring_offset))
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        has_pointer = TRUE;
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    else
        has_pointer = type_has_pointers(type->ref);
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    align = 0;
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    size = type_memsize((is_conformant_array(type) ? type->ref : type), &align);
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    start_offset = *typestring_offset;
    update_tfsoff(type, start_offset, file);
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    print_start_tfs_comment(file, type, start_offset);
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    print_file(file, 2, "0x%02x,\t/* %s */\n", type->type, string_of_type(type->type));
    print_file(file, 2, "0x%x,\t/* %d */\n", align - 1, align - 1);
    *typestring_offset += 2;
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    align = 0;
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    if (type->type != RPC_FC_BOGUS_ARRAY)
    {
        unsigned char tc = type->type;
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        if (tc == RPC_FC_LGFARRAY || tc == RPC_FC_LGVARRAY)
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        {
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            print_file(file, 2, "NdrFcLong(0x%x),\t/* %lu */\n", size, size);
            *typestring_offset += 4;
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        }
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        else
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        {
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            print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", size, size);
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            *typestring_offset += 2;
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        }
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        if (is_conformant_array(type))
            *typestring_offset
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                += write_conf_or_var_desc(file, current_structure, baseoff,
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                                          type, size_is);
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        if (type->type == RPC_FC_SMVARRAY || type->type == RPC_FC_LGVARRAY)
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        {
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            unsigned int elalign = 0;
            size_t elsize = type_memsize(type->ref, &elalign);
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            if (type->type == RPC_FC_LGVARRAY)
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            {
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                print_file(file, 2, "NdrFcLong(0x%x),\t/* %lu */\n", type->dim, type->dim);
                *typestring_offset += 4;
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            }
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            else
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            {
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                print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", type->dim, type->dim);
                *typestring_offset += 2;
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            }
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            print_file(file, 2, "NdrFcShort(0x%x),\t/* %lu */\n", elsize, elsize);
            *typestring_offset += 2;
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        }

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        if (length_is)
            *typestring_offset
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                += write_conf_or_var_desc(file, current_structure, baseoff,
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                                          type, length_is);
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        if (has_pointer && (!type->declarray || !current_structure))
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        {
            print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
            print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
            *typestring_offset += 2;
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            write_pointer_description(file, type, typestring_offset);
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            print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
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            *typestring_offset += 1;
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        }
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        write_member_type(file, type, NULL, type->ref, NULL, typestring_offset);
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        write_end(file, typestring_offset);
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    }
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    else
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    {
        unsigned int dim = size_is ? 0 : type->dim;
        print_file(file, 2, "NdrFcShort(0x%x),\t/* %u */\n", dim, dim);
        *typestring_offset += 2;
        *typestring_offset
            += write_conf_or_var_desc(file, current_structure, baseoff,
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                                      type, size_is);
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        *typestring_offset
            += write_conf_or_var_desc(file, current_structure, baseoff,
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                                      type, length_is);
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        write_member_type(file, type, NULL, type->ref, NULL, typestring_offset);
        write_end(file, typestring_offset);
    }
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    return start_offset;
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}
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1660
static const var_t *find_array_or_string_in_struct(const type_t *type)
1661
{
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    const var_t *last_field = LIST_ENTRY( list_tail(type->fields_or_args), const var_t, entry );
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    const type_t *ft = last_field->type;
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1665
    if (ft->declarray && is_conformant_array(ft))
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        return last_field;

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    if (ft->type == RPC_FC_CSTRUCT || ft->type == RPC_FC_CPSTRUCT || ft->type == RPC_FC_CVSTRUCT)
        return find_array_or_string_in_struct(last_field->type);
    else
        return NULL;
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}

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static void write_struct_members(FILE *file, const type_t *type,
                                 unsigned int *corroff, unsigned int *typestring_offset)
1676
{
1677
    const var_t *field;
1678
    unsigned short offset = 0;
1679 1680
    int salign = -1;
    int padding;
1681

1682
    if (type->fields_or_args) LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
1683 1684 1685
    {
        type_t *ft = field->type;
        if (!ft->declarray || !is_conformant_array(ft))
1686 1687 1688
        {
            unsigned int align = 0;
            size_t size = type_memsize(ft, &align);
1689 1690
            if (salign == -1)
                salign = align;
1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702
            if ((align - 1) & offset)
            {
                unsigned char fc = 0;
                switch (align)
                {
                case 4:
                    fc = RPC_FC_ALIGNM4;
                    break;
                case 8:
                    fc = RPC_FC_ALIGNM8;
                    break;
                default:
1703
                    error("write_struct_members: cannot align type %d\n", ft->type);
1704 1705 1706 1707 1708
                }
                print_file(file, 2, "0x%x,\t/* %s */\n", fc, string_of_type(fc));
                offset = (offset + (align - 1)) & ~(align - 1);
                *typestring_offset += 1;
            }
1709 1710
            write_member_type(file, type, field->attrs, field->type, corroff,
                              typestring_offset);
1711 1712
            offset += size;
        }
1713
    }
1714

1715 1716 1717 1718 1719 1720 1721 1722 1723
    padding = ((offset + (salign - 1)) & ~(salign - 1)) - offset;
    if (padding)
    {
        print_file(file, 2, "0x%x,\t/* FC_STRUCTPAD%d */\n",
                   RPC_FC_STRUCTPAD1 + padding - 1,
                   padding);
        *typestring_offset += 1;
    }

1724
    write_end(file, typestring_offset);
1725 1726
}

1727
static size_t write_struct_tfs(FILE *file, type_t *type,
1728
                               const char *name, unsigned int *tfsoff)
1729
{
1730
    const type_t *save_current_structure = current_structure;
1731
    unsigned int total_size;
1732
    const var_t *array;
1733
    size_t start_offset;
1734
    size_t array_offset;
1735
    int has_pointers = 0;
1736
    unsigned int align = 0;
1737 1738
    unsigned int corroff;
    var_t *f;
1739

1740
    guard_rec(type);
1741
    current_structure = type;
1742

1743 1744 1745 1746
    total_size = type_memsize(type, &align);
    if (total_size > USHRT_MAX)
        error("structure size for %s exceeds %d bytes by %d bytes\n",
              name, USHRT_MAX, total_size - USHRT_MAX);
1747

1748
    if (type->fields_or_args) LIST_FOR_EACH_ENTRY(f, type->fields_or_args, var_t, entry)
1749 1750
        has_pointers |= write_embedded_types(file, f->attrs, f->type, f->name,
                                             FALSE, tfsoff);
1751
    if (!has_pointers) has_pointers = type_has_pointers(type);
1752

1753 1754 1755 1756
    array = find_array_or_string_in_struct(type);
    if (array && !processed(array->type))
        array_offset
            = is_attr(array->attrs, ATTR_STRING)
1757
            ? write_string_tfs(file, array->attrs, array->type, array->name, tfsoff)
1758
            : write_array_tfs(file, array->attrs, array->type, array->name, tfsoff);
1759 1760 1761

    corroff = *tfsoff;
    write_descriptors(file, type, tfsoff);
1762

1763 1764
    start_offset = *tfsoff;
    update_tfsoff(type, start_offset, file);
1765
    print_start_tfs_comment(file, type, start_offset);
1766 1767 1768 1769
    print_file(file, 2, "0x%x,\t/* %s */\n", type->type, string_of_type(type->type));
    print_file(file, 2, "0x%x,\t/* %d */\n", align - 1, align - 1);
    print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", total_size, total_size);
    *tfsoff += 4;
1770

1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783
    if (array)
    {
        unsigned int absoff = array->type->typestring_offset;
        short reloff = absoff - *tfsoff;
        print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%lu) */\n",
                   reloff, reloff, absoff);
        *tfsoff += 2;
    }
    else if (type->type == RPC_FC_BOGUS_STRUCT)
    {
        print_file(file, 2, "NdrFcShort(0x0),\n");
        *tfsoff += 2;
    }
1784

1785 1786
    if (type->type == RPC_FC_BOGUS_STRUCT)
    {
1787 1788 1789
        /* On the sizing pass, type->ptrdesc may be zero, but it's ok as
           nothing is written to file yet.  On the actual writing pass,
           this will have been updated.  */
1790 1791
        unsigned int absoff = type->ptrdesc ? type->ptrdesc : *tfsoff;
        short reloff = absoff - *tfsoff;
1792
        print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
1793
                   reloff, reloff, absoff);
1794 1795
        *tfsoff += 2;
    }
1796 1797 1798
    else if ((type->type == RPC_FC_PSTRUCT) ||
             (type->type == RPC_FC_CPSTRUCT) ||
             (type->type == RPC_FC_CVSTRUCT && has_pointers))
1799 1800 1801 1802
    {
        print_file(file, 2, "0x%x, /* FC_PP */\n", RPC_FC_PP);
        print_file(file, 2, "0x%x, /* FC_PAD */\n", RPC_FC_PAD);
        *tfsoff += 2;
1803
        write_pointer_description(file, type, tfsoff);
1804 1805 1806
        print_file(file, 2, "0x%x, /* FC_END */\n", RPC_FC_END);
        *tfsoff += 1;
    }
1807

1808
    write_struct_members(file, type, &corroff, tfsoff);
1809

1810 1811
    if (type->type == RPC_FC_BOGUS_STRUCT)
    {
1812
        const var_list_t *fs = type->fields_or_args;
1813 1814 1815 1816 1817 1818 1819
        const var_t *f;

        type->ptrdesc = *tfsoff;
        if (fs) LIST_FOR_EACH_ENTRY(f, fs, const var_t, entry)
        {
            type_t *ft = f->type;
            if (is_ptr(ft))
1820 1821 1822 1823 1824 1825
            {
                if (is_string_type(f->attrs, ft))
                    write_string_tfs(file, f->attrs, ft, f->name, tfsoff);
                else
                    write_pointer_tfs(file, ft, tfsoff);
            }
1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841
            else if (!ft->declarray && is_conformant_array(ft))
            {
                unsigned int absoff = ft->typestring_offset;
                short reloff = absoff - (*tfsoff + 2);
                int ptr_type = get_attrv(f->attrs, ATTR_POINTERTYPE);
                /* FIXME: We need to store pointer attributes for arrays
                   so we don't lose pointer_default info.  */
                if (ptr_type == 0)
                    ptr_type = RPC_FC_UP;
                print_file(file, 0, "/* %d */\n", *tfsoff);
                print_file(file, 2, "0x%x, 0x0,\t/* %s */\n", ptr_type,
                           string_of_type(ptr_type));
                print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
                           reloff, reloff, absoff);
                *tfsoff += 4;
            }
1842
        }
1843 1844
        if (type->ptrdesc == *tfsoff)
            type->ptrdesc = 0;
1845 1846
    }

1847
    current_structure = save_current_structure;
1848
    return start_offset;
1849 1850
}

1851 1852 1853
static size_t write_pointer_only_tfs(FILE *file, const attr_list_t *attrs, int pointer_type,
                                     unsigned char flags, size_t offset,
                                     unsigned int *typeformat_offset)
1854
{
1855 1856
    size_t start_offset = *typeformat_offset;
    short reloff = offset - (*typeformat_offset + 2);
1857 1858 1859 1860
    int in_attr, out_attr;
    in_attr = is_attr(attrs, ATTR_IN);
    out_attr = is_attr(attrs, ATTR_OUT);
    if (!in_attr && !out_attr) in_attr = 1;
1861

1862 1863 1864
    if (out_attr && !in_attr && pointer_type == RPC_FC_RP)
        flags |= 0x04;

1865
    print_file(file, 2, "0x%x, 0x%x,\t\t/* %s",
1866
               pointer_type,
1867
               flags,
1868
               string_of_type(pointer_type));
1869 1870 1871 1872 1873 1874 1875 1876 1877
    if (file)
    {
        if (flags & 0x04)
            fprintf(file, " [allocated_on_stack]");
        if (flags & 0x10)
            fprintf(file, " [pointer_deref]");
        fprintf(file, " */\n");
    }

1878
    print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", reloff, offset);
1879
    *typeformat_offset += 4;
1880 1881

    return start_offset;
1882 1883
}

1884
static void write_branch_type(FILE *file, const type_t *t, unsigned int *tfsoff)
1885
{
1886 1887 1888 1889 1890
    if (t == NULL)
    {
        print_file(file, 2, "NdrFcShort(0x0),\t/* No type */\n");
    }
    else if (is_base_type(t->type))
1891 1892 1893 1894 1895 1896
    {
        print_file(file, 2, "NdrFcShort(0x80%02x),\t/* Simple arm type: %s */\n",
                   t->type, string_of_type(t->type));
    }
    else if (t->typestring_offset)
    {
1897
        short reloff = t->typestring_offset - *tfsoff;
1898 1899 1900 1901 1902 1903 1904 1905 1906
        print_file(file, 2, "NdrFcShort(0x%x),\t/* Offset= %d (%d) */\n",
                   reloff, reloff, t->typestring_offset);
    }
    else
        error("write_branch_type: type unimplemented (0x%x)\n", t->type);

    *tfsoff += 2;
}

1907
static size_t write_union_tfs(FILE *file, type_t *type, unsigned int *tfsoff)
1908
{
1909 1910
    unsigned int align = 0;
    unsigned int start_offset;
1911
    size_t size = type_memsize(type, &align);
1912
    var_list_t *fields;
1913 1914 1915 1916 1917
    size_t nbranch = 0;
    type_t *deftype = NULL;
    short nodeftype = 0xffff;
    var_t *f;

1918 1919
    guard_rec(type);

1920 1921
    if (type->type == RPC_FC_ENCAPSULATED_UNION)
    {
1922 1923
        const var_t *uv = LIST_ENTRY(list_tail(type->fields_or_args), const var_t, entry);
        fields = uv->type->fields_or_args;
1924 1925
    }
    else
1926
        fields = type->fields_or_args;
1927

1928 1929 1930 1931 1932
    if (fields) LIST_FOR_EACH_ENTRY(f, fields, var_t, entry)
    {
        expr_list_t *cases = get_attrp(f->attrs, ATTR_CASE);
        if (cases)
            nbranch += list_count(cases);
1933 1934
        if (f->type)
            write_embedded_types(file, f->attrs, f->type, f->name, TRUE, tfsoff);
1935 1936 1937
    }

    start_offset = *tfsoff;
1938
    update_tfsoff(type, start_offset, file);
1939
    print_start_tfs_comment(file, type, start_offset);
1940 1941
    if (type->type == RPC_FC_ENCAPSULATED_UNION)
    {
1942
        const var_t *sv = LIST_ENTRY(list_head(type->fields_or_args), const var_t, entry);
1943 1944
        const type_t *st = sv->type;

1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963
        switch (st->type)
        {
        case RPC_FC_CHAR:
        case RPC_FC_SMALL:
        case RPC_FC_USMALL:
        case RPC_FC_SHORT:
        case RPC_FC_USHORT:
        case RPC_FC_LONG:
        case RPC_FC_ULONG:
        case RPC_FC_ENUM16:
        case RPC_FC_ENUM32:
            print_file(file, 2, "0x%x,\t/* %s */\n", type->type, string_of_type(type->type));
            print_file(file, 2, "0x%x,\t/* Switch type= %s */\n",
                       0x40 | st->type, string_of_type(st->type));
            *tfsoff += 2;
            break;
        default:
            error("union switch type must be an integer, char, or enum\n");
        }
1964
    }
1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
    print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", size, size);
    print_file(file, 2, "NdrFcShort(0x%x),\t/* %d */\n", nbranch, nbranch);
    *tfsoff += 4;

    if (fields) LIST_FOR_EACH_ENTRY(f, fields, var_t, entry)
    {
        type_t *ft = f->type;
        expr_list_t *cases = get_attrp(f->attrs, ATTR_CASE);
        int deflt = is_attr(f->attrs, ATTR_DEFAULT);
        expr_t *c;

        if (cases == NULL && !deflt)
            error("union field %s with neither case nor default attribute\n", f->name);

        if (cases) LIST_FOR_EACH_ENTRY(c, cases, expr_t, entry)
        {
            /* MIDL doesn't check for duplicate cases, even though that seems
               like a reasonable thing to do, it just dumps them to the TFS
               like we're going to do here.  */
            print_file(file, 2, "NdrFcLong(0x%x),\t/* %d */\n", c->cval, c->cval);
            *tfsoff += 4;
            write_branch_type(file, ft, tfsoff);
        }

        /* MIDL allows multiple default branches, even though that seems
           illogical, it just chooses the last one, which is what we will
           do.  */
        if (deflt)
        {
            deftype = ft;
            nodeftype = 0;
        }
    }

    if (deftype)
    {
        write_branch_type(file, deftype, tfsoff);
    }
    else
    {
        print_file(file, 2, "NdrFcShort(0x%x),\n", nodeftype);
        *tfsoff += 2;
    }

    return start_offset;
2010 2011
}

2012 2013
static size_t write_ip_tfs(FILE *file, const attr_list_t *attrs, type_t *type,
                           unsigned int *typeformat_offset)
2014 2015 2016
{
    size_t i;
    size_t start_offset = *typeformat_offset;
2017
    expr_t *iid = get_attrp(attrs, ATTR_IIDIS);
2018

2019 2020 2021 2022
    if (iid)
    {
        print_file(file, 2, "0x2f,  /* FC_IP */\n");
        print_file(file, 2, "0x5c,  /* FC_PAD */\n");
2023
        *typeformat_offset
2024
            += write_conf_or_var_desc(file, NULL, 0, type, iid) + 2;
2025 2026 2027
    }
    else
    {
2028
        const type_t *base = is_ptr(type) ? type->ref : type;
2029
        const UUID *uuid = get_attrp(base->attrs, ATTR_UUID);
2030

2031 2032
        if (! uuid)
            error("%s: interface %s missing UUID\n", __FUNCTION__, base->name);
2033

2034
        update_tfsoff(type, start_offset, file);
2035
        print_start_tfs_comment(file, type, start_offset);
2036 2037 2038 2039 2040 2041 2042 2043 2044 2045
        print_file(file, 2, "0x2f,\t/* FC_IP */\n");
        print_file(file, 2, "0x5a,\t/* FC_CONSTANT_IID */\n");
        print_file(file, 2, "NdrFcLong(0x%08lx),\n", uuid->Data1);
        print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data2);
        print_file(file, 2, "NdrFcShort(0x%04x),\n", uuid->Data3);
        for (i = 0; i < 8; ++i)
            print_file(file, 2, "0x%02x,\n", uuid->Data4[i]);

        if (file)
            fprintf(file, "\n");
2046

2047 2048
        *typeformat_offset += 18;
    }
2049 2050 2051
    return start_offset;
}

2052 2053 2054 2055 2056
static size_t write_contexthandle_tfs(FILE *file, const type_t *type,
                                      const var_t *var,
                                      unsigned int *typeformat_offset)
{
    size_t start_offset = *typeformat_offset;
2057 2058 2059
    unsigned char flags = 0;

    if (is_attr(current_iface->attrs, ATTR_STRICTCONTEXTHANDLE))
2060
        flags |= NDR_STRICT_CONTEXT_HANDLE;
2061 2062 2063 2064

    if (is_ptr(type))
        flags |= 0x80;
    if (is_attr(var->attrs, ATTR_IN))
2065
    {
2066
        flags |= 0x40;
2067
        if (!is_attr(var->attrs, ATTR_OUT))
2068
            flags |= NDR_CONTEXT_HANDLE_CANNOT_BE_NULL;
2069
    }
2070 2071 2072 2073 2074
    if (is_attr(var->attrs, ATTR_OUT))
        flags |= 0x20;

    WRITE_FCTYPE(file, FC_BIND_CONTEXT, *typeformat_offset);
    print_file(file, 2, "0x%x,\t/* Context flags: ", flags);
2075 2076
    /* return and can't be null values overlap */
    if (((flags & 0x21) != 0x21) && (flags & NDR_CONTEXT_HANDLE_CANNOT_BE_NULL))
2077
        print_file(file, 0, "can't be null, ");
2078
    if (flags & NDR_CONTEXT_HANDLE_SERIALIZE)
2079
        print_file(file, 0, "serialize, ");
2080
    if (flags & NDR_CONTEXT_HANDLE_NO_SERIALIZE)
2081
        print_file(file, 0, "no serialize, ");
2082
    if (flags & NDR_STRICT_CONTEXT_HANDLE)
2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099
        print_file(file, 0, "strict, ");
    if ((flags & 0x21) == 0x20)
        print_file(file, 0, "out, ");
    if ((flags & 0x21) == 0x21)
        print_file(file, 0, "return, ");
    if (flags & 0x40)
        print_file(file, 0, "in, ");
    if (flags & 0x80)
        print_file(file, 0, "via ptr, ");
    print_file(file, 0, "*/\n");
    print_file(file, 2, "0, /* FIXME: rundown routine index*/\n");
    print_file(file, 2, "0, /* FIXME: param num */\n");
    *typeformat_offset += 4;

    return start_offset;
}

2100
static size_t write_typeformatstring_var(FILE *file, int indent, const func_t *func,
2101 2102
                                         type_t *type, const var_t *var,
                                         unsigned int *typeformat_offset)
2103
{
2104
    size_t offset;
2105

2106 2107 2108
    if (is_context_handle(type))
        return write_contexthandle_tfs(file, type, var, typeformat_offset);

2109 2110 2111 2112 2113 2114
    if (is_user_type(type))
    {
        write_user_tfs(file, type, typeformat_offset);
        return type->typestring_offset;
    }

2115
    if (is_string_type(var->attrs, type))
2116
        return write_string_tfs(file, var->attrs, type, var->name, typeformat_offset);
2117

2118
    if (is_array(type))
2119
    {
2120
        int ptr_type;
2121 2122
        size_t off;
        off = write_array_tfs(file, var->attrs, type, var->name, typeformat_offset);
2123
        ptr_type = get_attrv(var->attrs, ATTR_POINTERTYPE);
2124
        /* Top level pointers to conformant arrays may be handled specially
Austin English's avatar
Austin English committed
2125
           since we can bypass the pointer, but if the array is buried
2126 2127 2128 2129 2130 2131
           beneath another pointer (e.g., "[size_is(,n)] int **p" then we
           always need to write the pointer.  */
        if (!ptr_type && var->type != type)
          /* FIXME:  This should use pointer_default, but the information
             isn't kept around for arrays.  */
          ptr_type = RPC_FC_UP;
2132
        if (ptr_type && ptr_type != RPC_FC_RP)
2133 2134 2135 2136 2137
        {
            unsigned int absoff = type->typestring_offset;
            short reloff = absoff - (*typeformat_offset + 2);
            off = *typeformat_offset;
            print_file(file, 0, "/* %d */\n", off);
2138 2139
            print_file(file, 2, "0x%x, 0x0,\t/* %s */\n", ptr_type,
                       string_of_type(ptr_type));
2140 2141 2142 2143 2144 2145
            print_file(file, 2, "NdrFcShort(0x%hx),\t/* Offset= %hd (%u) */\n",
                       reloff, reloff, absoff);
            *typeformat_offset += 4;
        }
        return off;
    }
2146

2147 2148 2149 2150 2151
    if (!is_ptr(type))
    {
        /* basic types don't need a type format string */
        if (is_base_type(type->type))
            return 0;
2152

2153
        switch (type->type)
2154
        {
2155 2156 2157 2158 2159 2160 2161 2162 2163
        case RPC_FC_STRUCT:
        case RPC_FC_PSTRUCT:
        case RPC_FC_CSTRUCT:
        case RPC_FC_CPSTRUCT:
        case RPC_FC_CVSTRUCT:
        case RPC_FC_BOGUS_STRUCT:
            return write_struct_tfs(file, type, var->name, typeformat_offset);
        case RPC_FC_ENCAPSULATED_UNION:
        case RPC_FC_NON_ENCAPSULATED_UNION:
2164
            return write_union_tfs(file, type, typeformat_offset);
2165 2166 2167 2168 2169 2170
        case RPC_FC_IGNORE:
        case RPC_FC_BIND_PRIMITIVE:
            /* nothing to do */
            return 0;
        default:
            error("write_typeformatstring_var: Unsupported type 0x%x for variable %s\n", type->type, var->name);
2171
        }
2172 2173 2174 2175 2176 2177 2178
    }
    else if (last_ptr(type))
    {
        size_t start_offset = *typeformat_offset;
        int in_attr = is_attr(var->attrs, ATTR_IN);
        int out_attr = is_attr(var->attrs, ATTR_OUT);
        const type_t *base = type->ref;
2179

2180 2181 2182
        if (base->type == RPC_FC_IP
            || (base->type == 0
                && is_attr(var->attrs, ATTR_IIDIS)))
2183
        {
2184
            return write_ip_tfs(file, var->attrs, type, typeformat_offset);
2185
        }
2186

2187 2188
        /* special case for pointers to base types */
        if (is_base_type(base->type))
2189
        {
2190
            print_file(file, indent, "0x%x, 0x%x,    /* %s %s[simple_pointer] */\n",
2191 2192
                       type->type, (!in_attr && out_attr) ? 0x0C : 0x08,
                       string_of_type(type->type),
2193 2194 2195 2196 2197
                       (!in_attr && out_attr) ? "[allocated_on_stack] " : "");
            print_file(file, indent, "0x%02x,    /* %s */\n", base->type, string_of_type(base->type));
            print_file(file, indent, "0x5c,          /* FC_PAD */\n");
            *typeformat_offset += 4;
            return start_offset;
2198
        }
2199
    }
2200 2201 2202 2203 2204 2205

    assert(is_ptr(type));

    offset = write_typeformatstring_var(file, indent, func, type->ref, var, typeformat_offset);
    if (file)
        fprintf(file, "/* %2u */\n", *typeformat_offset);
2206
    return write_pointer_only_tfs(file, var->attrs, type->type,
2207 2208
                           !last_ptr(type) ? 0x10 : 0,
                           offset, typeformat_offset);
2209 2210
}

2211
static int write_embedded_types(FILE *file, const attr_list_t *attrs, type_t *type,
2212
                                const char *name, int write_ptr, unsigned int *tfsoff)
2213
{
2214
    int retmask = 0;
2215

2216 2217 2218 2219
    if (is_user_type(type))
    {
        write_user_tfs(file, type, tfsoff);
    }
2220 2221 2222 2223
    else if (is_string_type(attrs, type))
    {
        write_string_tfs(file, attrs, type, name, tfsoff);
    }
2224
    else if (is_ptr(type))
2225 2226 2227
    {
        type_t *ref = type->ref;

2228 2229 2230
        if (ref->type == RPC_FC_IP
            || (ref->type == 0
                && is_attr(attrs, ATTR_IIDIS)))
2231
        {
2232
            write_ip_tfs(file, attrs, type, tfsoff);
2233 2234 2235 2236 2237
        }
        else
        {
            if (!processed(ref) && !is_base_type(ref->type))
                retmask |= write_embedded_types(file, NULL, ref, name, TRUE, tfsoff);
2238

2239 2240
            if (write_ptr)
                write_pointer_tfs(file, type, tfsoff);
2241

2242 2243
            retmask |= 1;
        }
2244
    }
2245 2246
    else if (type->declarray && is_conformant_array(type))
        ;    /* conformant arrays and strings are handled specially */
2247 2248
    else if (is_array(type))
    {
2249
        write_array_tfs(file, attrs, type, name, tfsoff);
2250 2251
        if (is_conformant_array(type))
            retmask |= 1;
2252
    }
2253 2254 2255 2256 2257 2258 2259 2260 2261 2262
    else if (is_struct(type->type))
    {
        if (!processed(type))
            write_struct_tfs(file, type, name, tfsoff);
    }
    else if (is_union(type->type))
    {
        if (!processed(type))
            write_union_tfs(file, type, tfsoff);
    }
2263 2264 2265 2266 2267
    else if (!is_base_type(type->type))
        error("write_embedded_types: unknown embedded type for %s (0x%x)\n",
              name, type->type);

    return retmask;
2268 2269
}

2270 2271
static size_t process_tfs_stmts(FILE *file, const statement_list_t *stmts,
                                type_pred_t pred, unsigned int *typeformat_offset)
2272 2273
{
    const var_t *var;
2274
    const statement_t *stmt;
2275

2276
    if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
2277
    {
2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288
        const type_t *iface;
        if (stmt->type == STMT_LIBRARY)
        {
            process_tfs_stmts(file, stmt->u.lib->stmts, pred, typeformat_offset);
            continue;
        }
        else if (stmt->type != STMT_TYPE || stmt->u.type->type != RPC_FC_IP)
            continue;

        iface = stmt->u.type;
        if (!pred(iface))
2289 2290
            continue;

2291
        if (iface->funcs)
2292
        {
2293
            const func_t *func;
2294
            current_iface = iface;
2295
            LIST_FOR_EACH_ENTRY( func, iface->funcs, const func_t, entry )
2296
            {
2297
                if (is_local(func->def->attrs)) continue;
2298

2299 2300 2301 2302 2303
                if (!is_void(get_func_return_type(func)))
                {
                    var_t v = *func->def;
                    v.type = get_func_return_type(func);
                    update_tfsoff(get_func_return_type(func),
2304
                                  write_typeformatstring_var(
2305
                                      file, 2, NULL, get_func_return_type(func),
2306
                                      &v, typeformat_offset),
2307
                                  file);
2308
                }
2309

2310
                current_func = func;
2311
                if (func->args)
2312
                    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
2313 2314 2315 2316
                        update_tfsoff(
                            var->type,
                            write_typeformatstring_var(
                                file, 2, func, var->type, var,
2317
                                typeformat_offset),
2318
                            file);
2319 2320 2321 2322
            }
        }
    }

2323 2324 2325 2326 2327 2328 2329 2330
    return *typeformat_offset + 1;
}

static size_t process_tfs(FILE *file, const statement_list_t *stmts, type_pred_t pred)
{
    unsigned int typeformat_offset = 2;

    return process_tfs_stmts(file, stmts, pred, &typeformat_offset);
2331 2332 2333
}


2334
void write_typeformatstring(FILE *file, const statement_list_t *stmts, type_pred_t pred)
2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345
{
    int indent = 0;

    print_file(file, indent, "static const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString =\n");
    print_file(file, indent, "{\n");
    indent++;
    print_file(file, indent, "0,\n");
    print_file(file, indent, "{\n");
    indent++;
    print_file(file, indent, "NdrFcShort(0x0),\n");

2346
    set_all_tfswrite(TRUE);
2347
    process_tfs(file, stmts, pred);
2348

2349 2350 2351 2352 2353 2354 2355 2356
    print_file(file, indent, "0x0\n");
    indent--;
    print_file(file, indent, "}\n");
    indent--;
    print_file(file, indent, "};\n");
    print_file(file, indent, "\n");
}

2357
static unsigned int get_required_buffer_size_type(
2358
    const type_t *type, const char *name, unsigned int *alignment)
2359
{
2360
    *alignment = 0;
2361 2362 2363 2364
    if (is_user_type(type))
    {
        const char *uname;
        const type_t *utype = get_user_type(type, &uname);
2365
        return get_required_buffer_size_type(utype, uname, alignment);
2366
    }
2367
    else
2368
    {
2369
        switch (type->type)
2370
        {
2371 2372
        case RPC_FC_BYTE:
        case RPC_FC_CHAR:
2373 2374
        case RPC_FC_USMALL:
        case RPC_FC_SMALL:
2375
            *alignment = 4;
2376
            return 1;
2377

2378 2379 2380
        case RPC_FC_WCHAR:
        case RPC_FC_USHORT:
        case RPC_FC_SHORT:
2381
        case RPC_FC_ENUM16:
2382
            *alignment = 4;
2383
            return 2;
2384

2385 2386
        case RPC_FC_ULONG:
        case RPC_FC_LONG:
2387
        case RPC_FC_ENUM32:
2388 2389
        case RPC_FC_FLOAT:
        case RPC_FC_ERROR_STATUS_T:
2390
            *alignment = 4;
2391
            return 4;
2392

2393 2394
        case RPC_FC_HYPER:
        case RPC_FC_DOUBLE:
2395
            *alignment = 8;
2396
            return 8;
2397

2398 2399 2400 2401
        case RPC_FC_IGNORE:
        case RPC_FC_BIND_PRIMITIVE:
            return 0;

2402
        case RPC_FC_STRUCT:
2403
        case RPC_FC_PSTRUCT:
2404
        {
2405
            size_t size = 0;
2406
            const var_t *field;
2407 2408
            if (!type->fields_or_args) return 0;
            LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
2409 2410
            {
                unsigned int alignment;
2411 2412
                size += get_required_buffer_size_type(field->type, field->name,
                                                      &alignment);
2413
            }
2414
            return size;
2415 2416
        }

2417
        case RPC_FC_RP:
2418 2419 2420 2421
            return
                is_base_type( type->ref->type ) || type->ref->type == RPC_FC_STRUCT
                ? get_required_buffer_size_type( type->ref, name, alignment )
                : 0;
2422 2423 2424

        case RPC_FC_SMFARRAY:
        case RPC_FC_LGFARRAY:
2425
            return type->dim * get_required_buffer_size_type(type->ref, name, alignment);
2426

2427 2428
        default:
            return 0;
2429
        }
2430 2431 2432
    }
}

2433
static unsigned int get_required_buffer_size(const var_t *var, unsigned int *alignment, enum pass pass)
2434
{
2435 2436
    int in_attr = is_attr(var->attrs, ATTR_IN);
    int out_attr = is_attr(var->attrs, ATTR_OUT);
2437
    const type_t *t;
2438 2439 2440 2441

    if (!in_attr && !out_attr)
        in_attr = 1;

2442 2443
    *alignment = 0;

2444 2445 2446 2447 2448 2449 2450
    for (t = var->type; is_ptr(t); t = t->ref)
        if (is_attr(t->attrs, ATTR_CONTEXTHANDLE))
        {
            *alignment = 4;
            return 20;
        }

2451
    if (pass == PASS_OUT)
2452
    {
2453
        if (out_attr && is_ptr(var->type))
2454 2455 2456
        {
            type_t *type = var->type;

2457 2458 2459 2460
            if (type->type == RPC_FC_STRUCT)
            {
                const var_t *field;
                unsigned int size = 36;
2461

2462 2463
                if (!type->fields_or_args) return size;
                LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
2464 2465 2466
                {
                    unsigned int align;
                    size += get_required_buffer_size_type(
2467
                        field->type, field->name, &align);
2468 2469 2470
                }
                return size;
            }
2471
        }
2472
        return 0;
2473
    }
2474 2475
    else
    {
2476 2477
        if ((!out_attr || in_attr) && !var->type->size_is
            && !is_attr(var->attrs, ATTR_STRING) && !var->type->declarray)
2478
        {
2479
            if (is_ptr(var->type))
2480 2481
            {
                type_t *type = var->type;
2482

2483 2484 2485 2486 2487 2488 2489 2490
                if (is_base_type(type->type))
                {
                    return 25;
                }
                else if (type->type == RPC_FC_STRUCT)
                {
                    unsigned int size = 36;
                    const var_t *field;
2491

2492 2493
                    if (!type->fields_or_args) return size;
                    LIST_FOR_EACH_ENTRY( field, type->fields_or_args, const var_t, entry )
2494 2495 2496
                    {
                        unsigned int align;
                        size += get_required_buffer_size_type(
2497
                            field->type, field->name, &align);
2498 2499 2500 2501 2502 2503
                    }
                    return size;
                }
            }
        }

2504
        return get_required_buffer_size_type(var->type, var->name, alignment);
2505
    }
2506 2507
}

2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521
static unsigned int get_function_buffer_size( const func_t *func, enum pass pass )
{
    const var_t *var;
    unsigned int total_size = 0, alignment;

    if (func->args)
    {
        LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
        {
            total_size += get_required_buffer_size(var, &alignment, pass);
            total_size += alignment;
        }
    }

2522
    if (pass == PASS_OUT && !is_void(get_func_return_type(func)))
2523
    {
2524 2525 2526
        var_t v = *func->def;
        v.type = get_func_return_type(func);
        total_size += get_required_buffer_size(&v, &alignment, PASS_RETURN);
2527 2528 2529 2530 2531
        total_size += alignment;
    }
    return total_size;
}

2532 2533
static void print_phase_function(FILE *file, int indent, const char *type,
                                 enum remoting_phase phase,
2534
                                 const var_t *var, unsigned int type_offset)
2535
{
2536
    const char *function;
2537 2538 2539
    switch (phase)
    {
    case PHASE_BUFFERSIZE:
2540 2541
        function = "BufferSize";
        break;
2542
    case PHASE_MARSHAL:
2543 2544
        function = "Marshall";
        break;
2545
    case PHASE_UNMARSHAL:
2546 2547
        function = "Unmarshall";
        break;
2548
    case PHASE_FREE:
2549 2550 2551 2552 2553
        function = "Free";
        break;
    default:
        assert(0);
        return;
2554
    }
2555 2556 2557

    print_file(file, indent, "Ndr%s%s(\n", type, function);
    indent++;
2558
    print_file(file, indent, "&_StubMsg,\n");
2559 2560 2561 2562 2563
    print_file(file, indent, "%s%s%s%s,\n",
               (phase == PHASE_UNMARSHAL) ? "(unsigned char **)" : "(unsigned char *)",
               (phase == PHASE_UNMARSHAL || decl_indirect(var->type)) ? "&" : "",
               (phase == PHASE_UNMARSHAL && decl_indirect(var->type)) ? "_p_" : "",
               var->name);
2564 2565 2566 2567 2568
    print_file(file, indent, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]%s\n",
               type_offset, (phase == PHASE_UNMARSHAL) ? "," : ");");
    if (phase == PHASE_UNMARSHAL)
        print_file(file, indent, "0);\n");
    indent--;
2569 2570
}

2571 2572 2573 2574
void print_phase_basetype(FILE *file, int indent, enum remoting_phase phase,
                          enum pass pass, const var_t *var,
                          const char *varname)
{
2575
    type_t *type = var->type;
2576 2577
    unsigned int size;
    unsigned int alignment = 0;
2578
    unsigned char rtype;
2579 2580 2581 2582 2583

    /* no work to do for other phases, buffer sizing is done elsewhere */
    if (phase != PHASE_MARSHAL && phase != PHASE_UNMARSHAL)
        return;

2584
    rtype = is_ptr(type) ? type->ref->type : type->type;
2585

2586
    switch (rtype)
2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598
    {
        case RPC_FC_BYTE:
        case RPC_FC_CHAR:
        case RPC_FC_SMALL:
        case RPC_FC_USMALL:
            size = 1;
            alignment = 1;
            break;

        case RPC_FC_WCHAR:
        case RPC_FC_USHORT:
        case RPC_FC_SHORT:
2599
        case RPC_FC_ENUM16:
2600 2601 2602 2603 2604 2605
            size = 2;
            alignment = 2;
            break;

        case RPC_FC_ULONG:
        case RPC_FC_LONG:
2606
        case RPC_FC_ENUM32:
2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624
        case RPC_FC_FLOAT:
        case RPC_FC_ERROR_STATUS_T:
            size = 4;
            alignment = 4;
            break;

        case RPC_FC_HYPER:
        case RPC_FC_DOUBLE:
            size = 8;
            alignment = 8;
            break;

        case RPC_FC_IGNORE:
        case RPC_FC_BIND_PRIMITIVE:
            /* no marshalling needed */
            return;

        default:
2625
            error("print_phase_basetype: Unsupported type: %s (0x%02x, ptr_level: 0)\n", var->name, rtype);
2626 2627 2628
            size = 0;
    }

2629 2630
    if (phase == PHASE_MARSHAL)
        print_file(file, indent, "MIDL_memset(_StubMsg.Buffer, 0, (0x%x - (long)_StubMsg.Buffer) & 0x%x);\n", alignment, alignment - 1);
2631 2632 2633 2634 2635 2636
    print_file(file, indent, "_StubMsg.Buffer = (unsigned char *)(((long)_StubMsg.Buffer + %u) & ~0x%x);\n",
                alignment - 1, alignment - 1);

    if (phase == PHASE_MARSHAL)
    {
        print_file(file, indent, "*(");
2637
        write_type_decl(file, is_ptr(type) ? type->ref : type, NULL);
2638
        if (is_ptr(type))
2639 2640 2641
            fprintf(file, " *)_StubMsg.Buffer = *");
        else
            fprintf(file, " *)_StubMsg.Buffer = ");
2642
        fprintf(file, "%s", varname);
2643 2644 2645 2646
        fprintf(file, ";\n");
    }
    else if (phase == PHASE_UNMARSHAL)
    {
2647 2648 2649 2650 2651 2652
        print_file(file, indent, "if (_StubMsg.Buffer + sizeof(");
        write_type_decl(file, is_ptr(type) ? type->ref : type, NULL);
        fprintf(file, ") > _StubMsg.BufferEnd)\n");
        print_file(file, indent, "{\n");
        print_file(file, indent + 1, "RpcRaiseException(RPC_X_BAD_STUB_DATA);\n");
        print_file(file, indent, "}\n");
2653 2654 2655 2656
        if (pass == PASS_IN || pass == PASS_RETURN)
            print_file(file, indent, "");
        else
            print_file(file, indent, "*");
2657
        fprintf(file, "%s", varname);
2658
        if (pass == PASS_IN && is_ptr(type))
2659 2660 2661
            fprintf(file, " = (");
        else
            fprintf(file, " = *(");
2662
        write_type_decl(file, is_ptr(type) ? type->ref : type, NULL);
2663 2664 2665 2666
        fprintf(file, " *)_StubMsg.Buffer;\n");
    }

    print_file(file, indent, "_StubMsg.Buffer += sizeof(");
2667
    write_type_decl(file, var->type, NULL);
2668 2669 2670
    fprintf(file, ");\n");
}

2671 2672 2673 2674 2675 2676 2677
/* returns whether the MaxCount, Offset or ActualCount members need to be
 * filled in for the specified phase */
static inline int is_size_needed_for_phase(enum remoting_phase phase)
{
    return (phase != PHASE_UNMARSHAL);
}

2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695
expr_t *get_size_is_expr(const type_t *t, const char *name)
{
    expr_t *x = NULL;

    for ( ; is_ptr(t) || is_array(t); t = t->ref)
        if (t->size_is)
        {
            if (!x)
                x = t->size_is;
            else
                error("%s: multidimensional conformant"
                      " arrays not supported at the top level\n",
                      name);
        }

    return x;
}

2696 2697 2698
static void write_remoting_arg(FILE *file, int indent, const func_t *func,
                              enum pass pass, enum remoting_phase phase,
                              const var_t *var)
2699
{
2700
    int in_attr, out_attr, pointer_type;
2701 2702 2703
    const type_t *type = var->type;
    unsigned char rtype;
    size_t start_offset = type->typestring_offset;
2704

2705 2706 2707
    pointer_type = get_attrv(var->attrs, ATTR_POINTERTYPE);
    if (!pointer_type)
        pointer_type = RPC_FC_RP;
2708

2709 2710 2711 2712
    in_attr = is_attr(var->attrs, ATTR_IN);
    out_attr = is_attr(var->attrs, ATTR_OUT);
    if (!in_attr && !out_attr)
        in_attr = 1;
2713

2714
    if (phase != PHASE_FREE)
2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725
        switch (pass)
        {
        case PASS_IN:
            if (!in_attr) return;
            break;
        case PASS_OUT:
            if (!out_attr) return;
            break;
        case PASS_RETURN:
            break;
        }
2726

2727
    rtype = type->type;
2728

2729 2730 2731
    if (is_context_handle(type))
    {
        if (phase == PHASE_MARSHAL)
2732
        {
2733 2734
            if (pass == PASS_IN)
            {
2735 2736 2737 2738
                /* if the context_handle attribute appears in the chain of types
                 * without pointers being followed, then the context handle must
                 * be direct, otherwise it is a pointer */
                int is_ch_ptr = is_aliaschain_attr(type, ATTR_CONTEXTHANDLE) ? FALSE : TRUE;
2739 2740
                print_file(file, indent, "NdrClientContextMarshall(\n");
                print_file(file, indent + 1, "&_StubMsg,\n");
2741
                print_file(file, indent + 1, "(NDR_CCONTEXT)%s%s,\n", is_ch_ptr ? "*" : "", var->name);
2742 2743 2744 2745
                print_file(file, indent + 1, "%s);\n", in_attr && out_attr ? "1" : "0");
            }
            else
            {
2746
                print_file(file, indent, "NdrServerContextNewMarshall(\n");
2747 2748
                print_file(file, indent + 1, "&_StubMsg,\n");
                print_file(file, indent + 1, "(NDR_SCONTEXT)%s,\n", var->name);
2749 2750
                print_file(file, indent + 1, "(NDR_RUNDOWN)%s_rundown,\n", get_context_handle_type_name(var->type));
                print_file(file, indent + 1, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]);\n", start_offset);
2751 2752 2753 2754 2755 2756
            }
        }
        else if (phase == PHASE_UNMARSHAL)
        {
            if (pass == PASS_OUT)
            {
2757 2758
                if (!in_attr)
                    print_file(file, indent, "*%s = 0;\n", var->name);
2759 2760 2761 2762 2763 2764
                print_file(file, indent, "NdrClientContextUnmarshall(\n");
                print_file(file, indent + 1, "&_StubMsg,\n");
                print_file(file, indent + 1, "(NDR_CCONTEXT *)%s,\n", var->name);
                print_file(file, indent + 1, "_Handle);\n");
            }
            else
2765 2766 2767 2768 2769
            {
                print_file(file, indent, "%s = NdrServerContextNewUnmarshall(\n", var->name);
                print_file(file, indent + 1, "&_StubMsg,\n");
                print_file(file, indent + 1, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]);\n", start_offset);
            }
2770
        }
2771 2772 2773 2774 2775 2776 2777 2778 2779
    }
    else if (is_user_type(var->type))
    {
        print_phase_function(file, indent, "UserMarshal", phase, var, start_offset);
    }
    else if (is_string_type(var->attrs, var->type))
    {
        if (is_array(type) && !is_conformant_array(type))
            print_phase_function(file, indent, "NonConformantString", phase, var, start_offset);
2780
        else
2781 2782
        {
            if (type->size_is && is_size_needed_for_phase(phase))
2783
            {
2784
                print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
2785
                write_expr(file, type->size_is, 1, 1, NULL, NULL);
2786
                fprintf(file, ";\n");
2787
            }
2788

2789
            if (phase == PHASE_FREE || pass == PASS_RETURN || pointer_type == RPC_FC_UP)
2790 2791
                print_phase_function(file, indent, "Pointer", phase, var,
                                     start_offset - (type->size_is ? 4 : 2));
2792 2793
            else
                print_phase_function(file, indent, "ConformantString", phase, var,
2794
                                     start_offset);
2795 2796 2797 2798 2799 2800
        }
    }
    else if (is_array(type))
    {
        unsigned char tc = type->type;
        const char *array_type = "FixedArray";
2801

2802 2803 2804 2805 2806 2807 2808 2809
        /* We already have the size_is expression since it's at the
           top level, but do checks for multidimensional conformant
           arrays.  When we handle them, we'll need to extend this
           function to return a list, and then we'll actually use
           the return value.  */
        get_size_is_expr(type, var->name);

        if (tc == RPC_FC_SMVARRAY || tc == RPC_FC_LGVARRAY)
2810
        {
2811
            if (is_size_needed_for_phase(phase))
2812
            {
2813 2814
                print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
                print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
2815
                write_expr(file, type->length_is, 1, 1, NULL, NULL);
2816
                fprintf(file, ";\n\n");
2817
            }
2818
            array_type = "VaryingArray";
2819
        }
2820
        else if (tc == RPC_FC_CARRAY)
2821
        {
2822 2823 2824
            if (is_size_needed_for_phase(phase))
            {
                print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
2825
                write_expr(file, type->size_is, 1, 1, NULL, NULL);
2826 2827 2828
                fprintf(file, ";\n\n");
            }
            array_type = "ConformantArray";
2829
        }
2830
        else if (tc == RPC_FC_CVARRAY || tc == RPC_FC_BOGUS_ARRAY)
2831
        {
2832
            if (is_size_needed_for_phase(phase))
2833
            {
2834
                if (type->size_is)
2835 2836
                {
                    print_file(file, indent, "_StubMsg.MaxCount = (unsigned long)");
2837
                    write_expr(file, type->size_is, 1, 1, NULL, NULL);
2838 2839
                    fprintf(file, ";\n");
                }
2840
                if (type->length_is)
2841
                {
2842 2843
                    print_file(file, indent, "_StubMsg.Offset = (unsigned long)0;\n"); /* FIXME */
                    print_file(file, indent, "_StubMsg.ActualCount = (unsigned long)");
2844
                    write_expr(file, type->length_is, 1, 1, NULL, NULL);
2845
                    fprintf(file, ";\n\n");
2846
                }
2847
            }
2848 2849 2850
            array_type = (tc == RPC_FC_BOGUS_ARRAY
                          ? "ComplexArray"
                          : "ConformantVaryingArray");
2851
        }
2852 2853 2854

        if (pointer_type != RPC_FC_RP) array_type = "Pointer";
        print_phase_function(file, indent, array_type, phase, var, start_offset);
2855
        if (phase == PHASE_FREE && pointer_type == RPC_FC_RP)
2856
        {
2857
            /* these are all unmarshalled by allocating memory */
2858 2859
            if (type->type == RPC_FC_BOGUS_ARRAY ||
                type->type == RPC_FC_CVARRAY ||
2860 2861
                ((type->type == RPC_FC_SMVARRAY || type->type == RPC_FC_LGVARRAY) && in_attr) ||
                (type->type == RPC_FC_CARRAY && !in_attr))
2862
            {
2863 2864 2865
                print_file(file, indent, "if (%s)\n", var->name);
                indent++;
                print_file(file, indent, "_StubMsg.pfnFree(%s);\n", var->name);
2866 2867
            }
        }
2868 2869 2870
    }
    else if (!is_ptr(var->type) && is_base_type(rtype))
    {
2871 2872
        if (phase != PHASE_FREE)
            print_phase_basetype(file, indent, phase, pass, var, var->name);
2873 2874 2875 2876
    }
    else if (!is_ptr(var->type))
    {
        switch (rtype)
2877
        {
2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893
        case RPC_FC_STRUCT:
        case RPC_FC_PSTRUCT:
            print_phase_function(file, indent, "SimpleStruct", phase, var, start_offset);
            break;
        case RPC_FC_CSTRUCT:
        case RPC_FC_CPSTRUCT:
            print_phase_function(file, indent, "ConformantStruct", phase, var, start_offset);
            break;
        case RPC_FC_CVSTRUCT:
            print_phase_function(file, indent, "ConformantVaryingStruct", phase, var, start_offset);
            break;
        case RPC_FC_BOGUS_STRUCT:
            print_phase_function(file, indent, "ComplexStruct", phase, var, start_offset);
            break;
        case RPC_FC_RP:
            if (is_base_type( var->type->ref->type ))
2894
            {
2895
                print_phase_basetype(file, indent, phase, pass, var, var->name);
2896
            }
2897
            else if (var->type->ref->type == RPC_FC_STRUCT)
2898 2899
            {
                if (phase != PHASE_BUFFERSIZE && phase != PHASE_FREE)
2900
                    print_phase_function(file, indent, "SimpleStruct", phase, var, start_offset + 4);
2901
            }
2902
            else
2903
            {
2904
                expr_t *iid;
2905
                if ((iid = get_attrp( var->attrs, ATTR_IIDIS )))
2906 2907
                {
                    print_file( file, indent, "_StubMsg.MaxCount = (unsigned long) " );
2908
                    write_expr( file, iid, 1, 1, NULL, NULL );
2909 2910
                    fprintf( file, ";\n\n" );
                }
2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921
                print_phase_function(file, indent, "Pointer", phase, var, start_offset);
            }
            break;
        default:
            error("write_remoting_arguments: Unsupported type: %s (0x%02x)\n", var->name, rtype);
        }
    }
    else
    {
        if (last_ptr(var->type) && (pointer_type == RPC_FC_RP) && is_base_type(rtype))
        {
2922 2923
            if (phase != PHASE_FREE)
                print_phase_basetype(file, indent, phase, pass, var, var->name);
2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937
        }
        else if (last_ptr(var->type) && (pointer_type == RPC_FC_RP) && (rtype == RPC_FC_STRUCT))
        {
            if (phase != PHASE_BUFFERSIZE && phase != PHASE_FREE)
                print_phase_function(file, indent, "SimpleStruct", phase, var, start_offset + 4);
        }
        else
        {
            expr_t *iid;
            expr_t *sx = get_size_is_expr(type, var->name);

            if ((iid = get_attrp( var->attrs, ATTR_IIDIS )))
            {
                print_file( file, indent, "_StubMsg.MaxCount = (unsigned long) " );
2938
                write_expr( file, iid, 1, 1, NULL, NULL );
2939
                fprintf( file, ";\n\n" );
2940
            }
2941 2942 2943
            else if (sx)
            {
                print_file(file, indent, "_StubMsg.MaxCount = (unsigned long) ");
2944
                write_expr(file, sx, 1, 1, NULL, NULL);
2945 2946 2947 2948 2949 2950
                fprintf(file, ";\n\n");
            }
            if (var->type->ref->type == RPC_FC_IP)
                print_phase_function(file, indent, "InterfacePointer", phase, var, start_offset);
            else
                print_phase_function(file, indent, "Pointer", phase, var, start_offset);
2951
        }
2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968
    }
    fprintf(file, "\n");
}

void write_remoting_arguments(FILE *file, int indent, const func_t *func,
                              enum pass pass, enum remoting_phase phase)
{
    if (phase == PHASE_BUFFERSIZE && pass != PASS_RETURN)
    {
        unsigned int size = get_function_buffer_size( func, pass );
        print_file(file, indent, "_StubMsg.BufferLength = %u;\n", size);
    }

    if (pass == PASS_RETURN)
    {
        var_t var;
        var = *func->def;
2969
        var.type = get_func_return_type(func);
2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980
        var.name = xstrdup( "_RetVal" );
        write_remoting_arg( file, indent, func, pass, phase, &var );
        free( var.name );
    }
    else
    {
        const var_t *var;
        if (!func->args)
            return;
        LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
            write_remoting_arg( file, indent, func, pass, phase, var );
2981 2982
    }
}
2983 2984


2985
size_t get_size_procformatstring_type(const char *name, const type_t *type, const attr_list_t *attrs)
2986
{
2987
    return write_procformatstring_type(NULL, 0, name, type, attrs, FALSE);
2988 2989 2990
}


2991 2992 2993 2994 2995 2996 2997 2998
size_t get_size_procformatstring_func(const func_t *func)
{
    const var_t *var;
    size_t size = 0;

    /* argument list size */
    if (func->args)
        LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
2999
            size += get_size_procformatstring_type(var->name, var->type, var->attrs);
3000 3001

    /* return value size */
3002
    if (is_void(get_func_return_type(func)))
3003 3004
        size += 2; /* FC_END and FC_PAD */
    else
3005
        size += get_size_procformatstring_type("return value", get_func_return_type(func), NULL);
3006 3007 3008 3009

    return size;
}

3010
size_t get_size_procformatstring(const statement_list_t *stmts, type_pred_t pred)
3011
{
3012
    const statement_t *stmt;
3013
    size_t size = 1;
3014
    const func_t *func;
3015

3016
    if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
3017
    {
3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028
        const type_t *iface;
        if (stmt->type == STMT_LIBRARY)
        {
            size += get_size_procformatstring(stmt->u.lib->stmts, pred) - 1;
            continue;
        }
        else if (stmt->type != STMT_TYPE && stmt->u.type->type != RPC_FC_IP)
            continue;

        iface = stmt->u.type;
        if (!pred(iface))
3029 3030
            continue;

3031 3032
        if (iface->funcs)
            LIST_FOR_EACH_ENTRY( func, iface->funcs, const func_t, entry )
3033 3034
                if (!is_local(func->def->attrs))
                    size += get_size_procformatstring_func( func );
3035 3036 3037 3038
    }
    return size;
}

3039
size_t get_size_typeformatstring(const statement_list_t *stmts, type_pred_t pred)
3040
{
3041
    set_all_tfswrite(FALSE);
3042
    return process_tfs(NULL, stmts, pred);
3043 3044
}

3045 3046 3047 3048 3049 3050 3051
void declare_stub_args( FILE *file, int indent, const func_t *func )
{
    int in_attr, out_attr;
    int i = 0;
    const var_t *var;

    /* declare return value '_RetVal' */
3052
    if (!is_void(get_func_return_type(func)))
3053 3054
    {
        print_file(file, indent, "");
3055
        write_type_decl_left(file, get_func_return_type(func));
3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070
        fprintf(file, " _RetVal;\n");
    }

    if (!func->args)
        return;

    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
    {
        int is_string = is_attr(var->attrs, ATTR_STRING);

        in_attr = is_attr(var->attrs, ATTR_IN);
        out_attr = is_attr(var->attrs, ATTR_OUT);
        if (!out_attr && !in_attr)
            in_attr = 1;

3071 3072 3073
        if (is_context_handle(var->type))
            print_file(file, indent, "NDR_SCONTEXT %s;\n", var->name);
        else
3074
        {
3075 3076 3077
            if (!in_attr && !var->type->size_is && !is_string)
            {
                print_file(file, indent, "");
3078 3079
                write_type_decl(file, var->type->declarray ? var->type : var->type->ref,
                                "_W%u", i++);
3080 3081 3082
                fprintf(file, ";\n");
            }

3083
            print_file(file, indent, "");
3084
            write_type_decl_left(file, var->type);
3085 3086 3087 3088 3089 3090 3091 3092
            fprintf(file, " ");
            if (var->type->declarray) {
                fprintf(file, "( *");
                write_name(file, var);
                fprintf(file, " )");
            } else
                write_name(file, var);
            write_type_right(file, var->type, FALSE);
3093
            fprintf(file, ";\n");
3094

3095 3096 3097 3098
            if (decl_indirect(var->type))
                print_file(file, indent, "void *_p_%s = &%s;\n",
                           var->name, var->name);
        }
3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124
    }
}


void assign_stub_out_args( FILE *file, int indent, const func_t *func )
{
    int in_attr, out_attr;
    int i = 0, sep = 0;
    const var_t *var;

    if (!func->args)
        return;

    LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
    {
        int is_string = is_attr(var->attrs, ATTR_STRING);
        in_attr = is_attr(var->attrs, ATTR_IN);
        out_attr = is_attr(var->attrs, ATTR_OUT);
        if (!out_attr && !in_attr)
            in_attr = 1;

        if (!in_attr)
        {
            print_file(file, indent, "");
            write_name(file, var);

3125 3126 3127 3128 3129 3130 3131 3132
            if (is_context_handle(var->type))
            {
                fprintf(file, " = NdrContextHandleInitialize(\n");
                print_file(file, indent + 1, "&_StubMsg,\n");
                print_file(file, indent + 1, "(PFORMAT_STRING)&__MIDL_TypeFormatString.Format[%d]);\n",
                           var->type->typestring_offset);
            }
            else if (var->type->size_is)
3133
            {
3134
                unsigned int size, align = 0;
3135 3136 3137
                type_t *type = var->type;

                fprintf(file, " = NdrAllocate(&_StubMsg, ");
3138
                for ( ; type->size_is ; type = type->ref)
3139
                {
3140
                    write_expr(file, type->size_is, TRUE, TRUE, NULL, NULL);
3141 3142
                    fprintf(file, " * ");
                }
3143
                size = type_memsize(type, &align);
3144
                fprintf(file, "%u);\n", size);
3145 3146 3147 3148
            }
            else if (!is_string)
            {
                fprintf(file, " = &_W%u;\n", i);
3149
                if (is_ptr(var->type) && !last_ptr(var->type))
3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161
                    print_file(file, indent, "_W%u = 0;\n", i);
                i++;
            }

            sep = 1;
        }
    }
    if (sep)
        fprintf(file, "\n");
}


3162 3163
int write_expr_eval_routines(FILE *file, const char *iface)
{
3164
    static const char *var_name = "pS";
3165
    static const char *var_name_expr = "pS->";
3166 3167 3168 3169 3170 3171
    int result = 0;
    struct expr_eval_routine *eval;
    unsigned short callback_offset = 0;

    LIST_FOR_EACH_ENTRY(eval, &expr_eval_routines, struct expr_eval_routine, entry)
    {
3172
        const char *name = eval->structure->name;
3173
        result = 1;
3174 3175 3176 3177 3178

        print_file(file, 0, "static void __RPC_USER %s_%sExprEval_%04u(PMIDL_STUB_MESSAGE pStubMsg)\n",
                   iface, name, callback_offset);
        print_file(file, 0, "{\n");
        print_file (file, 1, "%s *%s = (%s *)(pStubMsg->StackTop - %u);\n",
3179
                    name, var_name, name, eval->baseoff);
3180 3181
        print_file(file, 1, "pStubMsg->Offset = 0;\n"); /* FIXME */
        print_file(file, 1, "pStubMsg->MaxCount = (unsigned long)");
3182
        write_expr(file, eval->expr, 1, 1, var_name_expr, eval->structure);
3183
        fprintf(file, ";\n");
3184
        print_file(file, 0, "}\n\n");
3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200
        callback_offset++;
    }
    return result;
}

void write_expr_eval_routine_list(FILE *file, const char *iface)
{
    struct expr_eval_routine *eval;
    struct expr_eval_routine *cursor;
    unsigned short callback_offset = 0;

    fprintf(file, "static const EXPR_EVAL ExprEvalRoutines[] =\n");
    fprintf(file, "{\n");

    LIST_FOR_EACH_ENTRY_SAFE(eval, cursor, &expr_eval_routines, struct expr_eval_routine, entry)
    {
3201 3202
        const char *name = eval->structure->name;
        print_file(file, 1, "%s_%sExprEval_%04u,\n", iface, name, callback_offset);
3203 3204 3205 3206 3207 3208 3209
        callback_offset++;
        list_remove(&eval->entry);
        free(eval);
    }

    fprintf(file, "};\n\n");
}
3210

3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223
void write_user_quad_list(FILE *file)
{
    user_type_t *ut;

    if (list_empty(&user_type_list))
        return;

    fprintf(file, "static const USER_MARSHAL_ROUTINE_QUADRUPLE UserMarshalRoutines[] =\n");
    fprintf(file, "{\n");
    LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
    {
        const char *sep = &ut->entry == list_tail(&user_type_list) ? "" : ",";
        print_file(file, 1, "{\n");
3224 3225 3226 3227
        print_file(file, 2, "(USER_MARSHAL_SIZING_ROUTINE)%s_UserSize,\n", ut->name);
        print_file(file, 2, "(USER_MARSHAL_MARSHALLING_ROUTINE)%s_UserMarshal,\n", ut->name);
        print_file(file, 2, "(USER_MARSHAL_UNMARSHALLING_ROUTINE)%s_UserUnmarshal,\n", ut->name);
        print_file(file, 2, "(USER_MARSHAL_FREEING_ROUTINE)%s_UserFree\n", ut->name);
3228 3229 3230 3231
        print_file(file, 1, "}%s\n", sep);
    }
    fprintf(file, "};\n\n");
}
3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265

void write_endpoints( FILE *f, const char *prefix, const str_list_t *list )
{
    const struct str_list_entry_t *endpoint;
    const char *p;

    /* this should be an array of RPC_PROTSEQ_ENDPOINT but we want const strings */
    print_file( f, 0, "static const unsigned char * %s__RpcProtseqEndpoint[][2] =\n{\n", prefix );
    LIST_FOR_EACH_ENTRY( endpoint, list, const struct str_list_entry_t, entry )
    {
        print_file( f, 1, "{ (const unsigned char *)\"" );
        for (p = endpoint->str; *p && *p != ':'; p++)
        {
            if (*p == '"' || *p == '\\') fputc( '\\', f );
            fputc( *p, f );
        }
        if (!*p) goto error;
        if (p[1] != '[') goto error;

        fprintf( f, "\", (const unsigned char *)\"" );
        for (p += 2; *p && *p != ']'; p++)
        {
            if (*p == '"' || *p == '\\') fputc( '\\', f );
            fputc( *p, f );
        }
        if (*p != ']') goto error;
        fprintf( f, "\" },\n" );
    }
    print_file( f, 0, "};\n\n" );
    return;

error:
    error("Invalid endpoint syntax '%s'\n", endpoint->str);
}