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Be more strict about checks (especially in RVA translations).

This commit is contained in:
Eric Pouech 2004-01-15 01:47:46 +00:00 committed by Alexandre Julliard
parent 6ec42c0c3b
commit 6c08994c36
3 changed files with 25 additions and 19 deletions
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3
tools/winedump/main.c
View File

@ -404,7 +404,8 @@ int main (int argc, char *argv[])
if (globals.input_name == NULL)
fatal("No file name has been given\n");
set_module_name(1);
dll_open (globals.input_name);
if (!dll_open (globals.input_name))
break;
output_spec_preamble ();
output_header_preamble ();

35
tools/winedump/pe.c
View File

@ -111,28 +111,24 @@ void* RVA(unsigned long rva, unsigned long len)
IMAGE_SECTION_HEADER* sectHead;
int i;
if (rva == 0) return NULL;
sectHead = (IMAGE_SECTION_HEADER*)((char*)PE_nt_headers + sizeof(DWORD) +
sizeof(IMAGE_FILE_HEADER) +
PE_nt_headers->FileHeader.SizeOfOptionalHeader);
if (rva == 0) return NULL;
for (i = PE_nt_headers->FileHeader.NumberOfSections - 1; i >= 0; i--)
{
if (sectHead[i].VirtualAddress <= rva &&
rva + len <= (DWORD)sectHead[i].VirtualAddress + sectHead[i].SizeOfRawData)
break;
}
if (i < 0)
{
printf("rva not found in any section (%lu)\n", rva);
return NULL;
}
/* return image import directory offset */
return PRD(sectHead[i].PointerToRawData + rva - sectHead[i].VirtualAddress, len);
}
}
return NULL;
}
static void* get_dir(unsigned idx)
{
@ -170,7 +166,7 @@ static void dump_pe_header(void)
printf(" Machine: %04X (%s)\n",
fileHeader->Machine, get_machine_str(fileHeader->Machine));
printf(" Number of Sections: %d\n", fileHeader->NumberOfSections);
printf(" TimeDateStamp: %08lX (%s) offset %ld\n",
printf(" TimeDateStamp: %08lX (%s) offset %lu\n",
fileHeader->TimeDateStamp, get_time_str(fileHeader->TimeDateStamp),
Offset(&(fileHeader->TimeDateStamp)));
printf(" PointerToSymbolTable: %08lX\n", fileHeader->PointerToSymbolTable);
@ -591,8 +587,12 @@ static void dump_dir_tls(void)
printf( " Callbacks %08lx -> {", (DWORD)dir->AddressOfCallBacks );
if (dir->AddressOfCallBacks)
{
callbacks = RVA((DWORD)dir->AddressOfCallBacks - PE_nt_headers->OptionalHeader.ImageBase,0);
while (*callbacks) printf( " %08lx", *callbacks++ );
DWORD addr = (DWORD)dir->AddressOfCallBacks - PE_nt_headers->OptionalHeader.ImageBase;
while ((callbacks = RVA(addr, sizeof(DWORD))) && *callbacks)
{
printf( " %08lx", *callbacks );
addr += sizeof(DWORD);
}
}
printf(" }\n\n");
}
@ -704,6 +704,11 @@ void dump_data( const unsigned char *ptr, unsigned int size, const char *prefix
unsigned int i, j;
printf( "%s", prefix );
if (!ptr)
{
printf("NULL\n");
return;
}
for (i = 0; i < size; i++)
{
printf( "%02x%c", ptr[i], (i % 16 == 7) ? '-' : ' ' );
@ -1224,9 +1229,9 @@ static void do_grab_sym( enum FileSig sig )
*
* Open a DLL and read in exported symbols
*/
void dll_open (const char *dll_name)
int dll_open (const char *dll_name)
{
pe_analysis(dll_name, do_grab_sym, SIG_PE);
return pe_analysis(dll_name, do_grab_sym, SIG_PE);
}
/*******************************************************************

2
tools/winedump/winedump.h
View File

@ -157,7 +157,7 @@ extern _globals globals;
void dump_file(const char* name);
/* DLL functions */
void dll_open (const char *dll_name);
int dll_open (const char *dll_name);
int dll_next_symbol (parsed_symbol * sym);