ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

widl: Support loading typelibs stored inside PE files. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49803
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-11-12 10:26:03 +01:00
parent 4f0bb2e45f
commit ae44ba97b0
1 changed files with 93 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

147
tools/widl/typelib.c
View File

@ -239,78 +239,114 @@ unsigned short get_type_vt(type_t *t)
return 0;
}
static void tlb_read(int fd, void *buf, int count)
static void msft_read_guid(void *data, MSFT_SegDir *segdir, int offset, GUID *guid)
{
if(read(fd, buf, count) < count)
error("error while reading importlib.\n");
memcpy( guid, (char *)data + segdir->pGuidTab.offset + offset, sizeof(*guid) );
}
static void tlb_lseek(int fd, int offset)
static void read_msft_importlib(importlib_t *importlib, void *data, unsigned int size)
{
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;
MSFT_Header *header = data;
MSFT_SegDir *segdir;
int *typeinfo_offs;
int i;
importlib->allocated = 0;
importlib->version = header->version;
tlb_lseek(fd, 0);
tlb_read(fd, &header, sizeof(header));
typeinfo_offs = (int *)(header + 1);
segdir = (MSFT_SegDir *)(typeinfo_offs + header->nrtypeinfos);
importlib->version = header.version;
msft_read_guid(data, segdir, header->posguid, &importlib->guid);
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->ntypeinfos = header->nrtypeinfos;
importlib->importinfos = xmalloc(importlib->ntypeinfos*sizeof(importinfo_t));
for(i=0; i < importlib->ntypeinfos; i++) {
MSFT_TypeInfoBase base;
MSFT_NameIntro nameintro;
MSFT_TypeInfoBase *base = (MSFT_TypeInfoBase *)((char *)(segdir + 1) + typeinfo_offs[i]);
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].flags = (base->typekind & 0xf)<<24;
importlib->importinfos[i].offset = -1;
importlib->importinfos[i].id = i;
if(base.posguid != -1) {
if(base->posguid != -1) {
importlib->importinfos[i].flags |= MSFT_IMPINFO_OFFSET_IS_GUID;
msft_read_guid(fd, &segdir, base.posguid, &importlib->importinfos[i].guid);
msft_read_guid(data, 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;
nameintro = (MSFT_NameIntro *)((char *)data + segdir->pNametab.offset + base->NameOffset);
len = nameintro->namelen & 0xff;
importlib->importinfos[i].name = xmalloc(len+1);
tlb_read(fd, importlib->importinfos[i].name, len);
memcpy( importlib->importinfos[i].name, nameintro + 1, len );
importlib->importinfos[i].name[len] = 0;
}
}
free(typeinfo_offs);
static unsigned int rva_to_va( const IMAGE_NT_HEADERS32 *nt, unsigned int rva )
{
IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER *)((char *)&nt->OptionalHeader + nt->FileHeader.SizeOfOptionalHeader);
unsigned int i;
for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
if (sec->VirtualAddress <= rva && sec->VirtualAddress + sec->Misc.VirtualSize > rva)
return sec->PointerToRawData + (rva - sec->VirtualAddress);
error( "no PE section found for addr %x\n", rva );
}
static void read_pe_importlib(importlib_t *importlib, void *data, unsigned int size)
{
IMAGE_DOS_HEADER *dos = data;
IMAGE_NT_HEADERS32 *nt;
IMAGE_DATA_DIRECTORY *dir;
IMAGE_RESOURCE_DIRECTORY *root, *resdir;
IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
IMAGE_RESOURCE_DATA_ENTRY *resdata;
void *ptr;
unsigned int i, va;
if (dos->e_lfanew < sizeof(*dos) || dos->e_lfanew >= size) error( "not a PE file\n" );
nt = (IMAGE_NT_HEADERS32 *)((char *)data + dos->e_lfanew);
if (nt->Signature != IMAGE_NT_SIGNATURE) error( "not a PE file\n" );
if ((char *)&nt->OptionalHeader + nt->FileHeader.SizeOfOptionalHeader > (char *)data + size)
error( "invalid PE file\n" );
switch (nt->OptionalHeader.Magic)
{
case IMAGE_NT_OPTIONAL_HDR32_MAGIC:
dir = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE];
break;
case IMAGE_NT_OPTIONAL_HDR64_MAGIC:
dir = &((IMAGE_NT_HEADERS64 *)nt)->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE];
break;
default:
error( "invalid PE file\n" );
}
if (!dir->VirtualAddress || !dir->Size) error( "resource not found in PE file\n" );
va = rva_to_va( nt, dir->VirtualAddress );
if (va + dir->Size > size) error( "invalid resource data in PE file\n" );
root = resdir = (IMAGE_RESOURCE_DIRECTORY *)((char *)data + va );
entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(resdir + 1);
for (i = 0; i < resdir->NumberOfNamedEntries; i++, entry++)
{
static const WCHAR typelibW[] = {'T','Y','P','E','L','I','B'};
WCHAR *name = (WCHAR *)((char *)root + entry->NameOffset);
if (name[0] != ARRAY_SIZE(typelibW)) continue;
if (!memcmp( name + 1, typelibW, sizeof(typelibW) )) break;
}
if (i == resdir->NumberOfNamedEntries) error( "typelib resource not found in PE file\n" );
while (entry->DataIsDirectory)
{
resdir = (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry->OffsetToDirectory);
entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(resdir + 1);
}
resdata = (IMAGE_RESOURCE_DATA_ENTRY *)((char *)root + entry->OffsetToData);
ptr = (char *)data + rva_to_va( nt, resdata->OffsetToData );
if (memcmp( ptr, "MSFT", 4 )) error( "invalid typelib found in PE file\n" );
read_msft_importlib( importlib, ptr, resdata->Size );
}
static int open_typelib(const char *name)
@ -329,8 +365,8 @@ static int open_typelib(const char *name)
static void read_importlib(importlib_t *importlib)
{
int fd;
INT magic;
int fd, size;
void *data;
fd = open_typelib(importlib->name);
@ -341,17 +377,20 @@ static void read_importlib(importlib_t *importlib)
if(fd < 0)
error("Could not find importlib %s.\n", importlib->name);
tlb_read(fd, &magic, sizeof(magic));
size = lseek( fd, 0, SEEK_END );
data = xmalloc( size );
lseek( fd, 0, SEEK_SET );
if (read( fd, data, size) < size) error("error while reading importlib.\n");
close( fd );
switch(magic) {
case MSFT_MAGIC:
read_msft_importlib(importlib, fd);
break;
default:
error("Wrong or unsupported typelib magic %x\n", magic);
};
if (!memcmp( data, "MSFT", 4 ))
read_msft_importlib(importlib, data, size);
else if (!memcmp( data, "MZ", 2 ))
read_pe_importlib(importlib, data, size);
else
error("Wrong or unsupported typelib\n");
close(fd);
free( data );
}
void add_importlib(const char *name, typelib_t *typelib)