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msi: Split code to create a random package name into a separate function.

This commit is contained in:
Mike McCormack 2006-09-08 16:20:46 +09:00 committed by Alexandre Julliard
parent 00fdc6cb80
commit 5f83069bd8
1 changed files with 32 additions and 29 deletions
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61
dlls/msi/action.c
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@ -3487,32 +3487,25 @@ end:
return rc;
}
static UINT msi_make_package_local( MSIPACKAGE *package, HKEY hkey )
static UINT msi_get_local_package_name( LPWSTR path )
{
static const WCHAR installerPathFmt[] = {
'%','s','\\','I','n','s','t','a','l','l','e','r','\\',0};
static const WCHAR fmt[] = {
'%','s','\\',
'I','n','s','t','a','l','l','e','r','\\',
'%','x','.','m','s','i',0};
static const WCHAR szOriginalDatabase[] =
{'O','r','i','g','i','n','a','l','D','a','t','a','b','a','s','e',0};
WCHAR windir[MAX_PATH], path[MAX_PATH], packagefile[MAX_PATH];
INT num, start;
LPWSTR msiFilePath;
BOOL r;
static const WCHAR szInstaller[] = {
'\\','I','n','s','t','a','l','l','e','r','\\',0};
static const WCHAR fmt[] = { '%','x','.','m','s','i',0};
DWORD time, len, i;
HANDLE handle;
/* copy the package locally */
num = GetTickCount() & 0xffff;
if (!num)
num = 1;
start = num;
GetWindowsDirectoryW( windir, MAX_PATH );
snprintfW( packagefile, MAX_PATH, fmt, windir, num );
do
time = GetTickCount();
GetWindowsDirectoryW( path, MAX_PATH );
lstrcatW( path, szInstaller );
CreateDirectoryW( path, NULL );
len = lstrlenW(path);
for (i=0; i<0x10000; i++)
{
HANDLE handle = CreateFileW(packagefile,GENERIC_WRITE, 0, NULL,
CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
snprintfW( &path[len], MAX_PATH - len, fmt, (time+i)&0xffff );
handle = CreateFileW( path, GENERIC_WRITE, 0, NULL,
CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
if (handle != INVALID_HANDLE_VALUE)
{
CloseHandle(handle);
@ -3520,13 +3513,23 @@ static UINT msi_make_package_local( MSIPACKAGE *package, HKEY hkey )
}
if (GetLastError() != ERROR_FILE_EXISTS &&
GetLastError() != ERROR_SHARING_VIOLATION)
break;
if (!(++num & 0xffff)) num = 1;
sprintfW(packagefile,fmt,num);
} while (num != start);
return ERROR_FUNCTION_FAILED;
}
snprintfW( path, MAX_PATH, installerPathFmt, windir );
create_full_pathW(path);
return ERROR_SUCCESS;
}
static UINT msi_make_package_local( MSIPACKAGE *package, HKEY hkey )
{
static const WCHAR szOriginalDatabase[] =
{'O','r','i','g','i','n','a','l','D','a','t','a','b','a','s','e',0};
WCHAR packagefile[MAX_PATH];
LPWSTR msiFilePath;
UINT r;
r = msi_get_local_package_name( packagefile );
if (r != ERROR_SUCCESS)
return r;
TRACE("Copying to local package %s\n",debugstr_w(packagefile));