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kernel32: Check for a 32-bit NT header before getting module address range in MODULE_GetBinaryType.

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This commit is contained in:
Alexandre Julliard 2009-08-12 15:47:57 +02:00
parent 5e4f0cf5ca
commit 4a59ac76f1
1 changed files with 13 additions and 2 deletions
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13
dlls/kernel32/module.c
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@ -282,7 +282,7 @@ DWORD MODULE_GetBinaryType( HANDLE hfile, void **res_start, void **res_end )
union
{
IMAGE_OS2_HEADER os2;
IMAGE_NT_HEADERS nt;
IMAGE_NT_HEADERS32 nt;
} ext_header;
/* We do have a DOS image so we will now try to seek into
@ -309,9 +309,20 @@ DWORD MODULE_GetBinaryType( HANDLE hfile, void **res_start, void **res_end )
if (len < sizeof(ext_header.nt)) /* clear remaining part of header if missing */
memset( (char *)&ext_header.nt + len, 0, sizeof(ext_header.nt) - len );
if (res_start) *res_start = (void *)ext_header.nt.OptionalHeader.ImageBase;
if (res_end) *res_end = (void *)(ext_header.nt.OptionalHeader.ImageBase +
ext_header.nt.OptionalHeader.SizeOfImage);
switch (ext_header.nt.OptionalHeader.Magic)
{
case IMAGE_NT_OPTIONAL_HDR32_MAGIC:
if (res_start) *res_start = (void *)ext_header.nt.OptionalHeader.ImageBase;
if (res_end) *res_end = (void *)(ext_header.nt.OptionalHeader.ImageBase +
ext_header.nt.OptionalHeader.SizeOfImage);
return ret;
case IMAGE_NT_OPTIONAL_HDR64_MAGIC:
if (res_start) *res_start = NULL;
if (res_end) *res_end = NULL;
return ret;
}
}
return BINARY_DOS;
}