Sweden-Number/tools/widl/typelib.c

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/*
* IDL Compiler
*
* Copyright 2004 Ove Kaaven
* Copyright 2006 Jacek Caban for CodeWeavers
*
* 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
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include "widl.h"
#include "windef.h"
#include "winbase.h"
#include "utils.h"
#include "wpp_private.h"
#include "parser.h"
#include "header.h"
#include "typelib.h"
#include "widltypes.h"
#include "typelib_struct.h"
#include "typetree.h"
/* List of oleauto types that should be recognized by name.
* (most of) these seem to be intrinsic types in mktyplib.
* This table MUST be alphabetically sorted on the kw field.
*/
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static const struct oatype {
const char *kw;
unsigned short vt;
} oatypes[] = {
{"BSTR", VT_BSTR},
{"CURRENCY", VT_CY},
{"DATE", VT_DATE},
{"DECIMAL", VT_DECIMAL},
{"HRESULT", VT_HRESULT},
{"LPSTR", VT_LPSTR},
{"LPWSTR", VT_LPWSTR},
{"SCODE", VT_ERROR},
{"VARIANT", VT_VARIANT},
{"VARIANT_BOOL", VT_BOOL}
};
#define KWP(p) ((const struct oatype *)(p))
static int kw_cmp_func(const void *s1, const void *s2)
{
return strcmp(KWP(s1)->kw, KWP(s2)->kw);
}
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static unsigned short builtin_vt(const type_t *t)
{
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const char *kw = t->name;
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struct oatype key;
const struct oatype *kwp;
key.kw = kw;
#ifdef KW_BSEARCH
kwp = bsearch(&key, oatypes, ARRAY_SIZE(oatypes), sizeof(oatypes[0]), kw_cmp_func);
#else
{
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unsigned int i;
for (kwp = NULL, i = 0; i < ARRAY_SIZE(oatypes); i++)
if (!kw_cmp_func(&key, &oatypes[i])) {
kwp = &oatypes[i];
break;
}
}
#endif
if (kwp) {
return kwp->vt;
}
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if (is_string_type (t->attrs, t))
{
const type_t *elem_type;
if (is_array(t))
elem_type = type_array_get_element_type(t);
else
elem_type = type_pointer_get_ref_type(t);
if (type_get_type(elem_type) == TYPE_BASIC)
{
switch (type_basic_get_type(elem_type))
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{
case TYPE_BASIC_CHAR: return VT_LPSTR;
case TYPE_BASIC_WCHAR: return VT_LPWSTR;
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default: break;
}
}
}
return 0;
}
static int match(const char*n, const char*m)
{
if (!n) return 0;
return !strcmp(n, m);
}
unsigned short get_type_vt(type_t *t)
{
unsigned short vt;
chat("get_type_vt: %p type->name %s\n", t, t->name);
if (t->name) {
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vt = builtin_vt(t);
if (vt) return vt;
}
if (type_is_alias(t) &&
(is_attr(t->attrs, ATTR_PUBLIC) || is_attr(t->attrs, ATTR_WIREMARSHAL)))
return VT_USERDEFINED;
switch (type_get_type(t)) {
case TYPE_BASIC:
switch (type_basic_get_type(t)) {
case TYPE_BASIC_BYTE:
return VT_UI1;
case TYPE_BASIC_CHAR:
case TYPE_BASIC_INT8:
if (type_basic_get_sign(t) > 0)
return VT_UI1;
else
return VT_I1;
case TYPE_BASIC_WCHAR:
return VT_I2; /* mktyplib seems to parse wchar_t as short */
case TYPE_BASIC_INT16:
if (type_basic_get_sign(t) > 0)
return VT_UI2;
else
return VT_I2;
case TYPE_BASIC_INT:
if (type_basic_get_sign(t) > 0)
return VT_UINT;
else
return VT_INT;
case TYPE_BASIC_INT32:
case TYPE_BASIC_LONG:
case TYPE_BASIC_ERROR_STATUS_T:
if (type_basic_get_sign(t) > 0)
return VT_UI4;
else
return VT_I4;
case TYPE_BASIC_INT64:
case TYPE_BASIC_HYPER:
if (type_basic_get_sign(t) > 0)
return VT_UI8;
else
return VT_I8;
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case TYPE_BASIC_INT3264:
if (pointer_size == 8)
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{
if (type_basic_get_sign(t) > 0)
return VT_UI8;
else
return VT_I8;
}
else
{
if (type_basic_get_sign(t) > 0)
return VT_UI4;
else
return VT_I4;
}
case TYPE_BASIC_FLOAT:
return VT_R4;
case TYPE_BASIC_DOUBLE:
return VT_R8;
case TYPE_BASIC_HANDLE:
error("handles can't be used in typelibs\n");
}
break;
case TYPE_POINTER:
return VT_PTR;
case TYPE_ARRAY:
if (type_array_is_decl_as_ptr(t))
{
if (match(type_array_get_element_type(t)->name, "SAFEARRAY"))
return VT_SAFEARRAY;
return VT_PTR;
}
else
return VT_CARRAY;
case TYPE_INTERFACE:
if(match(t->name, "IUnknown"))
return VT_UNKNOWN;
if(match(t->name, "IDispatch"))
return VT_DISPATCH;
return VT_USERDEFINED;
case TYPE_ENUM:
case TYPE_STRUCT:
case TYPE_COCLASS:
case TYPE_MODULE:
case TYPE_UNION:
case TYPE_ENCAPSULATED_UNION:
case TYPE_RUNTIMECLASS:
case TYPE_DELEGATE:
return VT_USERDEFINED;
case TYPE_VOID:
return VT_VOID;
case TYPE_ALIAS:
case TYPE_APICONTRACT:
case TYPE_PARAMETERIZED_TYPE:
case TYPE_PARAMETER:
/* not supposed to be here */
assert(0);
break;
case TYPE_FUNCTION:
error("get_type_vt: functions not supported\n");
break;
case TYPE_BITFIELD:
error("get_type_vt: bitfields not supported\n");
break;
}
return 0;
}
static void tlb_read(int fd, void *buf, int count)
{
if(read(fd, buf, count) < count)
error("error while reading importlib.\n");
}
static void tlb_lseek(int fd, int offset)
{
if(lseek(fd, offset, SEEK_SET) == -1)
error("lseek failed\n");
}
static void msft_read_guid(int fd, MSFT_SegDir *segdir, int offset, GUID *guid)
{
tlb_lseek(fd, segdir->pGuidTab.offset+offset);
tlb_read(fd, guid, sizeof(GUID));
}
static void read_msft_importlib(importlib_t *importlib, int fd)
{
MSFT_Header header;
MSFT_SegDir segdir;
int *typeinfo_offs;
int i;
importlib->allocated = 0;
tlb_lseek(fd, 0);
tlb_read(fd, &header, sizeof(header));
importlib->version = header.version;
typeinfo_offs = xmalloc(header.nrtypeinfos*sizeof(INT));
tlb_read(fd, typeinfo_offs, header.nrtypeinfos*sizeof(INT));
tlb_read(fd, &segdir, sizeof(segdir));
msft_read_guid(fd, &segdir, header.posguid, &importlib->guid);
importlib->ntypeinfos = header.nrtypeinfos;
importlib->importinfos = xmalloc(importlib->ntypeinfos*sizeof(importinfo_t));
for(i=0; i < importlib->ntypeinfos; i++) {
MSFT_TypeInfoBase base;
MSFT_NameIntro nameintro;
int len;
tlb_lseek(fd, sizeof(MSFT_Header) + header.nrtypeinfos*sizeof(INT) + sizeof(MSFT_SegDir)
+ typeinfo_offs[i]);
tlb_read(fd, &base, sizeof(base));
importlib->importinfos[i].importlib = importlib;
importlib->importinfos[i].flags = (base.typekind&0xf)<<24;
importlib->importinfos[i].offset = -1;
importlib->importinfos[i].id = i;
if(base.posguid != -1) {
importlib->importinfos[i].flags |= MSFT_IMPINFO_OFFSET_IS_GUID;
msft_read_guid(fd, &segdir, base.posguid, &importlib->importinfos[i].guid);
}
else memset( &importlib->importinfos[i].guid, 0, sizeof(importlib->importinfos[i].guid));
tlb_lseek(fd, segdir.pNametab.offset + base.NameOffset);
tlb_read(fd, &nameintro, sizeof(nameintro));
len = nameintro.namelen & 0xff;
importlib->importinfos[i].name = xmalloc(len+1);
tlb_read(fd, importlib->importinfos[i].name, len);
importlib->importinfos[i].name[len] = 0;
}
free(typeinfo_offs);
}
static int open_typelib(const char *name)
{
char *file_name;
int fd;
file_name = wpp_find_include(name, NULL);
if(!file_name)
return open(name, O_RDONLY | O_BINARY );
fd = open(file_name, O_RDONLY | O_BINARY );
free(file_name);
return fd;
}
static void read_importlib(importlib_t *importlib)
{
int fd;
INT magic;
fd = open_typelib(importlib->name);
/* widl extension: if importlib name has no .tlb extension, try using .tlb */
if (fd < 0 && !strendswith( importlib->name, ".tlb" ))
fd = open_typelib( strmake( "%s.tlb", importlib->name ));
if(fd < 0)
error("Could not find importlib %s.\n", importlib->name);
tlb_read(fd, &magic, sizeof(magic));
switch(magic) {
case MSFT_MAGIC:
read_msft_importlib(importlib, fd);
break;
default:
error("Wrong or unsupported typelib magic %x\n", magic);
};
close(fd);
}
void add_importlib(const char *name, typelib_t *typelib)
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{
importlib_t *importlib;
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if(!typelib) return;
LIST_FOR_EACH_ENTRY( importlib, &typelib->importlibs, importlib_t, entry )
if(!strcmp(name, importlib->name))
return;
chat("add_importlib: %s\n", name);
importlib = xmalloc(sizeof(*importlib));
memset( importlib, 0, sizeof(*importlib) );
importlib->name = xstrdup(name);
read_importlib(importlib);
list_add_head( &typelib->importlibs, &importlib->entry );
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}