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ntdll: Fix string comparison against non null-terminated string (Valgrind).

This commit is contained in:
Alexandre Julliard 2011-10-19 17:48:16 +02:00
parent 595dbe2eba
commit 3aed056b72
1 changed files with 4 additions and 3 deletions
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7
dlls/ntdll/actctx.c
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@ -1823,7 +1823,7 @@ static WCHAR *lookup_manifest_file( HANDLE dir, struct assembly_identity *ai )
static const WCHAR lookup_fmtW[] =
{'%','s','_','%','s','_','%','s','_','%','u','.','%','u','.','*','.','*','_',
'%','s','_','*','.','m','a','n','i','f','e','s','t',0};
static const WCHAR wine_trailerW[] = {'d','e','a','d','b','e','e','f','.','m','a','n','i','f','e','s','t',0};
static const WCHAR wine_trailerW[] = {'d','e','a','d','b','e','e','f','.','m','a','n','i','f','e','s','t'};
WCHAR *lookup, *ret = NULL;
UNICODE_STRING lookup_us;
@ -1869,7 +1869,7 @@ static WCHAR *lookup_manifest_file( HANDLE dir, struct assembly_identity *ai )
if (dir_info->NextEntryOffset) data_pos += dir_info->NextEntryOffset;
else data_pos = data_len;
tmp = (WCHAR *)dir_info->FileName + (strchrW(lookup, '*') - lookup);
tmp = dir_info->FileName + (strchrW(lookup, '*') - lookup);
build = atoiW(tmp);
if (build < min_build) continue;
tmp = strchrW(tmp, '.') + 1;
@ -1877,7 +1877,8 @@ static WCHAR *lookup_manifest_file( HANDLE dir, struct assembly_identity *ai )
if (build == min_build && revision < min_revision) continue;
tmp = strchrW(tmp, '_') + 1;
tmp = strchrW(tmp, '_') + 1;
if (!strcmpiW( tmp, wine_trailerW ))
if (dir_info->FileNameLength - (tmp - dir_info->FileName) * sizeof(WCHAR) == sizeof(wine_trailerW) &&
!memicmpW( tmp, wine_trailerW, sizeof(wine_trailerW) / sizeof(WCHAR) ))
{
/* prefer a non-Wine manifest if we already have one */
/* we'll still load the builtin dll if specified through DllOverrides */