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ntdll: Return an NT path for the initial current directory. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-03-23 12:59:50 +01:00
parent 101082253f
commit 5246f34a3e
1 changed files with 32 additions and 37 deletions
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65
dlls/ntdll/unix/env.c
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@ -1437,14 +1437,14 @@ static void get_initial_console( RTL_USER_PROCESS_PARAMETERS *params )
*
* Get the current directory at startup.
*/
static void get_initial_directory( UNICODE_STRING *dir )
static WCHAR *get_initial_directory(void)
{
static const WCHAR backslashW[] = {'\\',0};
static const WCHAR windows_dir[] = {'\\','?','?','\\','C',':','\\','w','i','n','d','o','w','s','\\',0};
const char *pwd;
char *cwd;
int size;
dir->MaximumLength = MAX_PATH * sizeof(WCHAR);
dir->Length = 0;
WCHAR *ret = NULL;
/* try to get it from the Unix cwd */
@ -1472,45 +1472,30 @@ static void get_initial_directory( UNICODE_STRING *dir )
if (pwd)
{
WCHAR *nt_name;
if (!unix_to_nt_file_name( pwd, &nt_name ))
if (!unix_to_nt_file_name( pwd, &ret ))
{
/* skip the \??\ prefix */
ULONG len = wcslen( nt_name );
if (len > 6 && nt_name[5] == ':')
ULONG len = wcslen( ret );
if (len && ret[len - 1] != '\\')
{
dir->Length = (len - 4) * sizeof(WCHAR);
memcpy( dir->Buffer, nt_name + 4, dir->Length );
/* add trailing backslash */
WCHAR *tmp = malloc( (len + 2) * sizeof(WCHAR) );
wcscpy( tmp, ret );
wcscat( tmp, backslashW );
free( ret );
ret = tmp;
}
else /* change \??\ to \\?\ */
{
dir->Length = len * sizeof(WCHAR);
memcpy( dir->Buffer, nt_name, dir->Length );
dir->Buffer[1] = '\\';
}
free( nt_name );
free( cwd );
return ret;
}
}
if (!dir->Length) /* still not initialized */
{
static const WCHAR windows_dir[] = {'C',':','\\','w','i','n','d','o','w','s'};
/* still not initialized */
MESSAGE("Warning: could not find DOS drive for current working directory '%s', "
"starting in the Windows directory.\n", cwd ? cwd : "" );
memcpy( dir->Buffer, windows_dir, sizeof(windows_dir) );
dir->Length = sizeof(windows_dir);
}
/* add trailing backslash */
if (dir->Buffer[dir->Length / sizeof(WCHAR) - 1] != '\\')
{
dir->Buffer[dir->Length / sizeof(WCHAR)] = '\\';
dir->Length += sizeof(WCHAR);
}
dir->Buffer[dir->Length / sizeof(WCHAR)] = 0;
ret = malloc( sizeof(windows_dir) );
wcscpy( ret, windows_dir );
free( cwd );
return ret;
}
@ -1700,6 +1685,12 @@ static inline void put_unicode_string( WCHAR *src, WCHAR **dst, UNICODE_STRING *
copy_unicode_string( &src, dst, str, wcslen(src) * sizeof(WCHAR) );
}
static inline WCHAR *get_dos_path( WCHAR *nt_path )
{
if (nt_path[4] && nt_path[5] == ':') return nt_path + 4; /* skip the \??\ prefix */
nt_path[1] = '\\'; /* change \??\ to \\?\ */
return nt_path;
}
/*************************************************************************
* build_initial_params
@ -1714,6 +1705,7 @@ static RTL_USER_PROCESS_PARAMETERS *build_initial_params(void)
WCHAR *dst, *p, *path = NULL;
WCHAR *cmdline = build_command_line( main_wargv + 1 );
WCHAR *env = get_initial_environment( &env_pos, &env_size );
WCHAR *curdir = get_initial_directory();
NTSTATUS status;
/* store the initial PATH value */
@ -1749,12 +1741,15 @@ static RTL_USER_PROCESS_PARAMETERS *build_initial_params(void)
params->wShowWindow = 1; /* SW_SHOWNORMAL */
params->CurrentDirectory.DosPath.Buffer = (WCHAR *)(params + 1);
get_initial_directory( &params->CurrentDirectory.DosPath );
wcscpy( params->CurrentDirectory.DosPath.Buffer, get_dos_path( curdir ));
params->CurrentDirectory.DosPath.Length = wcslen(params->CurrentDirectory.DosPath.Buffer) * sizeof(WCHAR);
params->CurrentDirectory.DosPath.MaximumLength = MAX_PATH * sizeof(WCHAR);
dst = params->CurrentDirectory.DosPath.Buffer + MAX_PATH;
put_unicode_string( main_wargv[0], &dst, &params->ImagePathName );
put_unicode_string( cmdline, &dst, &params->CommandLine );
free( cmdline );
free( curdir );
params->Environment = dst;
params->EnvironmentSize = env_pos * sizeof(WCHAR);