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Pass the environment for a child process through the server instead of 

relying on the Unix environment.
This commit is contained in:
Alexandre Julliard 2004-07-16 03:54:35 +00:00
parent d724923fa1
commit c4ec2108b1
4 changed files with 73 additions and 44 deletions
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105
dlls/kernel/process.c
View File

@ -106,6 +106,7 @@ inline static int contains_path( LPCWSTR name )
inline static int is_special_env_var( const char *var )
{
return (!strncmp( var, "PATH=", sizeof("PATH=")-1 ) ||
!strncmp( var, "HOME=", sizeof("HOME=")-1 ) ||
!strncmp( var, "TEMP=", sizeof("TEMP=")-1 ) ||
!strncmp( var, "TMP=", sizeof("TMP=")-1 ));
}
@ -690,13 +691,12 @@ static void usage(void)
static RTL_USER_PROCESS_PARAMETERS *init_user_process_params( size_t info_size )
{
void *ptr;
DWORD size;
NTSTATUS status;
DWORD size, env_size;
RTL_USER_PROCESS_PARAMETERS *params;
size = info_size;
if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, NULL, &size,
MEM_COMMIT, PAGE_READWRITE )) != STATUS_SUCCESS)
if (NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, NULL, &size,
MEM_COMMIT, PAGE_READWRITE ) != STATUS_SUCCESS)
return NULL;
SERVER_START_REQ( get_startup_info )
@ -708,8 +708,8 @@ static RTL_USER_PROCESS_PARAMETERS *init_user_process_params( size_t info_size )
SERVER_END_REQ;
params = ptr;
params->Size = info_size;
params->AllocationSize = size;
if (params->Size > info_size) params->Size = info_size;
/* make sure the strings are valid */
fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
@ -721,6 +721,15 @@ static RTL_USER_PROCESS_PARAMETERS *init_user_process_params( size_t info_size )
fix_unicode_string( &params->ShellInfo, (char *)info_size );
fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
/* environment needs to be a separate memory block */
env_size = info_size - params->Size;
if (!env_size) env_size = 1;
if (NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, NULL, &env_size,
MEM_COMMIT, PAGE_READWRITE ) != STATUS_SUCCESS)
return NULL;
memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
params->Environment = ptr;
return RtlNormalizeProcessParams( params );
}
@ -929,28 +938,30 @@ static BOOL process_init(void)
LOCALE_Init();
/* Copy the parent environment */
if (!build_initial_environment( __wine_main_environ )) return FALSE;
/* Create device symlinks */
VOLUME_CreateDevices();
init_current_directory( &params->CurrentDirectory );
/* registry initialisation */
SHELL_LoadRegistry();
/* global boot finished, the rest is process-local */
SERVER_START_REQ( boot_done )
if (!info_size)
{
req->debug_level = TRACE_ON(server);
wine_server_call( req );
}
SERVER_END_REQ;
/* Copy the parent environment */
if (!build_initial_environment( __wine_main_environ )) return FALSE;
if (!info_size) set_registry_environment();
/* Create device symlinks */
VOLUME_CreateDevices();
/* registry initialisation */
SHELL_LoadRegistry();
/* global boot finished, the rest is process-local */
SERVER_START_REQ( boot_done )
{
req->debug_level = TRACE_ON(server);
wine_server_call( req );
}
SERVER_END_REQ;
set_registry_environment();
}
init_windows_dirs();
init_current_directory( &params->CurrentDirectory );
return TRUE;
}
@ -1260,7 +1271,7 @@ static char *alloc_env_string( const char *name, const char *value )
*
* Build the environment of a new child process.
*/
static char **build_envp( const WCHAR *envW, char *extra_env )
static char **build_envp( const WCHAR *envW )
{
const WCHAR *end;
char **envp;
@ -1273,30 +1284,26 @@ static char **build_envp( const WCHAR *envW, char *extra_env )
if (!(env = malloc( length ))) return NULL;
WideCharToMultiByte( CP_UNIXCP, 0, envW, end - envW, env, length, NULL, NULL );
if (extra_env) for (p = extra_env; *p; p += strlen(p) + 1) count++;
count += 4;
if ((envp = malloc( count * sizeof(*envp) )))
{
char **envptr = envp;
/* first the extra strings */
if (extra_env)
for (p = extra_env; *p; p += strlen(p) + 1) *envptr++ = alloc_env_string( "", p );
/* then put PATH, TEMP, TMP, HOME and WINEPREFIX from the unix env */
/* some variables must not be modified, so we get them directly from the unix env */
if ((p = getenv("PATH"))) *envptr++ = alloc_env_string( "PATH=", p );
if ((p = getenv("TEMP"))) *envptr++ = alloc_env_string( "TEMP=", p );
if ((p = getenv("TMP"))) *envptr++ = alloc_env_string( "TMP=", p );
if ((p = getenv("HOME"))) *envptr++ = alloc_env_string( "HOME=", p );
if ((p = getenv("WINEPREFIX"))) *envptr++ = alloc_env_string( "WINEPREFIX=", p );
/* now put the Windows environment strings */
for (p = env; *p; p += strlen(p) + 1)
{
if (*p == '=') continue; /* skip drive curdirs, this crashes some unix apps */
if (!strncmp( p, "WINEPRELOADRESERVE=", sizeof("WINEPRELOADRESERVE=")-1 )) continue;
if (is_special_env_var( p )) /* prefix it with "WINE" */
*envptr++ = alloc_env_string( "WINE", p );
else if (strncmp( p, "HOME=", 5 ) &&
strncmp( p, "WINEPRELOADRESERVE=", 19 ) &&
strncmp( p, "WINEPREFIX=", 11 )) *envptr++ = p;
else
*envptr++ = p;
}
*envptr = 0;
}
@ -1326,7 +1333,7 @@ static int fork_and_exec( const char *filename, const WCHAR *cmdline,
if (!(pid = fork())) /* child */
{
char **argv = build_argv( cmdline, 0 );
char **envp = build_envp( env, NULL );
char **envp = build_envp( env );
close( fd[0] );
/* Reset signals that we previously set to SIG_IGN */
@ -1356,7 +1363,8 @@ static int fork_and_exec( const char *filename, const WCHAR *cmdline,
* create_user_params
*/
static RTL_USER_PROCESS_PARAMETERS *create_user_params( LPCWSTR filename, LPCWSTR cmdline,
LPCWSTR cur_dir, const STARTUPINFOW *startup )
LPCWSTR cur_dir, LPWSTR env,
const STARTUPINFOW *startup )
{
RTL_USER_PROCESS_PARAMETERS *params;
UNICODE_STRING image_str, cmdline_str, curdir_str, desktop, title;
@ -1376,7 +1384,7 @@ static RTL_USER_PROCESS_PARAMETERS *create_user_params( LPCWSTR filename, LPCWST
status = RtlCreateProcessParameters( &params, &image_str, NULL,
cur_dir ? &curdir_str : NULL,
&cmdline_str, NULL,
&cmdline_str, env,
startup->lpTitle ? &title : NULL,
startup->lpDesktop ? &desktop : NULL,
NULL, NULL );
@ -1386,7 +1394,6 @@ static RTL_USER_PROCESS_PARAMETERS *create_user_params( LPCWSTR filename, LPCWST
return NULL;
}
params->Environment = NULL; /* we pass it through the Unix environment */
params->hStdInput = startup->hStdInput;
params->hStdOutput = startup->hStdOutput;
params->hStdError = startup->hStdError;
@ -1417,6 +1424,7 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
{
BOOL ret, success = FALSE;
HANDLE process_info;
WCHAR *env_end;
RTL_USER_PROCESS_PARAMETERS *params;
int startfd[2];
int execfd[2];
@ -1425,10 +1433,16 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
char dummy = 0;
char preloader_reserve[64];
if (!env) env = GetEnvironmentStringsW();
if (!env) RtlAcquirePebLock();
if (!(params = create_user_params( filename, cmd_line, cur_dir, startup )))
if (!(params = create_user_params( filename, cmd_line, cur_dir, env, startup )))
{
if (!env) RtlReleasePebLock();
return FALSE;
}
env_end = params->Environment;
while (*env_end) env_end += strlenW(env_end) + 1;
env_end++;
sprintf( preloader_reserve, "WINEPRELOADRESERVE=%lx-%lx%c",
(unsigned long)res_start, (unsigned long)res_end, 0 );
@ -1437,12 +1451,14 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
if (pipe( startfd ) == -1)
{
if (!env) RtlReleasePebLock();
SetLastError( ERROR_TOO_MANY_OPEN_FILES );
RtlDestroyProcessParameters( params );
return FALSE;
}
if (pipe( execfd ) == -1)
{
if (!env) RtlReleasePebLock();
SetLastError( ERROR_TOO_MANY_OPEN_FILES );
close( startfd[0] );
close( startfd[1] );
@ -1456,7 +1472,6 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
if (!(pid = fork())) /* child */
{
char **argv = build_argv( cmd_line, 1 );
char **envp = build_envp( env, preloader_reserve );
close( startfd[1] );
close( execfd[0] );
@ -1469,15 +1484,16 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
signal( SIGPIPE, SIG_DFL );
signal( SIGCHLD, SIG_DFL );
putenv( preloader_reserve );
if (unixdir) chdir(unixdir);
if (argv && envp)
if (argv)
{
/* first, try for a WINELOADER environment variable */
const char *loader = getenv("WINELOADER");
if (loader) wine_exec_wine_binary( loader, argv, envp, TRUE );
if (loader) wine_exec_wine_binary( loader, argv, NULL, TRUE );
/* now use the standard search strategy */
wine_exec_wine_binary( NULL, argv, envp, TRUE );
wine_exec_wine_binary( NULL, argv, NULL, TRUE );
}
err = errno;
write( execfd[1], &err, sizeof(err) );
@ -1490,6 +1506,7 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
close( execfd[1] );
if (pid == -1)
{
if (!env) RtlReleasePebLock();
close( startfd[1] );
close( execfd[0] );
FILE_SetDosError();
@ -1533,11 +1550,13 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
}
wine_server_add_data( req, params, params->Size );
wine_server_add_data( req, params->Environment, (env_end-params->Environment)*sizeof(WCHAR) );
ret = !wine_server_call_err( req );
process_info = reply->info;
}
SERVER_END_REQ;
if (!env) RtlReleasePebLock();
RtlDestroyProcessParameters( params );
if (!ret)
{

4
include/wine/server_protocol.h
View File

@ -177,6 +177,7 @@ struct new_process_request
obj_handle_t hstdout;
obj_handle_t hstderr;
/* VARARG(info,startup_info); */
/* VARARG(env,unicode_str); */
};
struct new_process_reply
{
@ -261,6 +262,7 @@ struct get_startup_info_reply
{
struct reply_header __header;
/* VARARG(info,startup_info); */
/* VARARG(env,unicode_str); */
};
@ -3626,6 +3628,6 @@ union generic_reply
struct set_global_windows_reply set_global_windows_reply;
};
#define SERVER_PROTOCOL_VERSION 145
#define SERVER_PROTOCOL_VERSION 146
#endif /* __WINE_WINE_SERVER_PROTOCOL_H */

2
server/protocol.def
View File

@ -191,6 +191,7 @@ typedef struct
obj_handle_t hstdout; /* handle for stdout */
obj_handle_t hstderr; /* handle for stderr */
VARARG(info,startup_info); /* startup information */
VARARG(env,unicode_str); /* environment for new process */
@REPLY
obj_handle_t info; /* new process info handle */
@END
@ -246,6 +247,7 @@ typedef struct
@REQ(get_startup_info)
@REPLY
VARARG(info,startup_info); /* startup information */
VARARG(env,unicode_str); /* environment */
@END

6
server/trace.c
View File

@ -423,6 +423,9 @@ static void dump_new_process_request( const struct new_process_request *req )
fprintf( stderr, " hstderr=%p,", req->hstderr );
fprintf( stderr, " info=" );
dump_varargs_startup_info( cur_size );
fputc( ',', stderr );
fprintf( stderr, " env=" );
dump_varargs_unicode_str( cur_size );
}
static void dump_new_process_reply( const struct new_process_reply *req )
@ -489,6 +492,9 @@ static void dump_get_startup_info_reply( const struct get_startup_info_reply *re
{
fprintf( stderr, " info=" );
dump_varargs_startup_info( cur_size );
fputc( ',', stderr );
fprintf( stderr, " env=" );
dump_varargs_unicode_str( cur_size );
}
static void dump_init_process_done_request( const struct init_process_done_request *req )