/* WIN32.C
*
* (c) 1995 Microsoft Corporation. All rights reserved.
* Developed by hip communications inc.
* Portions (c) 1993 Intergraph Corporation. All rights reserved.
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
#define PERLIO_NOT_STDIO 0
#define WIN32_LEAN_AND_MEAN
#define WIN32IO_IS_STDIO
#include <tchar.h>
#ifdef __GNUC__
# define Win32_Winsock
#endif
#ifndef _WIN32_WINNT
# define _WIN32_WINNT 0x0500 /* needed for CreateHardlink() etc. */
#endif
#include <windows.h>
#ifndef HWND_MESSAGE
# define HWND_MESSAGE ((HWND)-3)
#endif
#ifndef PROCESSOR_ARCHITECTURE_AMD64
# define PROCESSOR_ARCHITECTURE_AMD64 9
#endif
#ifndef WC_NO_BEST_FIT_CHARS
# define WC_NO_BEST_FIT_CHARS 0x00000400
#endif
#include <winnt.h>
#include <commctrl.h>
#include <tlhelp32.h>
#include <io.h>
#include <signal.h>
/* #include "config.h" */
#if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO)
# define PerlIO FILE
#endif
#include <sys/stat.h>
#include "EXTERN.h"
#include "perl.h"
#define NO_XSLOCKS
#define PERL_NO_GET_CONTEXT
#include "XSUB.h"
#include <fcntl.h>
#ifndef __GNUC__
/* assert.h conflicts with #define of assert in perl.h */
# include <assert.h>
#endif
#include <string.h>
#include <stdarg.h>
#include <float.h>
#include <time.h>
#include <sys/utime.h>
#ifdef __GNUC__
/* Mingw32 defaults to globing command line
* So we turn it off like this:
*/
int _CRT_glob = 0;
#endif
#if defined(__MINGW32__) && (__MINGW32_MAJOR_VERSION==1)
/* Mingw32-1.1 is missing some prototypes */
START_EXTERN_C
FILE * _wfopen(LPCWSTR wszFileName, LPCWSTR wszMode);
FILE * _wfdopen(int nFd, LPCWSTR wszMode);
FILE * _freopen(LPCWSTR wszFileName, LPCWSTR wszMode, FILE * pOldStream);
int _flushall();
int _fcloseall();
END_EXTERN_C
#endif
#define EXECF_EXEC 1
#define EXECF_SPAWN 2
#define EXECF_SPAWN_NOWAIT 3
#if defined(PERL_IMPLICIT_SYS)
# undef win32_get_privlib
# define win32_get_privlib g_win32_get_privlib
# undef win32_get_sitelib
# define win32_get_sitelib g_win32_get_sitelib
# undef win32_get_vendorlib
# define win32_get_vendorlib g_win32_get_vendorlib
# undef getlogin
# define getlogin g_getlogin
#endif
/* VS2005 (MSC version 14) provides a mechanism to set an invalid
* parameter handler. This functionality is not available in the
* 64-bit compiler from the Platform SDK, which unfortunately also
* believes itself to be MSC version 14.
*
* There is no #define related to _set_invalid_parameter_handler(),
* but we can check for one of the constants defined for
* _set_abort_behavior(), which was introduced into stdlib.h at
* the same time.
*/
#if _MSC_VER >= 1400 && defined(_WRITE_ABORT_MSG)
# define SET_INVALID_PARAMETER_HANDLER
#endif
#ifdef SET_INVALID_PARAMETER_HANDLER
static BOOL set_silent_invalid_parameter_handler(BOOL newvalue);
static void my_invalid_parameter_handler(const wchar_t* expression,
const wchar_t* function, const wchar_t* file,
unsigned int line, uintptr_t pReserved);
#endif
static char* get_regstr_from(HKEY hkey, const char *valuename, SV **svp);
static char* get_regstr(const char *valuename, SV **svp);
static char* get_emd_part(SV **prev_pathp, STRLEN *const len,
char *trailing, ...);
static char* win32_get_xlib(const char *pl, const char *xlib,
const char *libname, STRLEN *const len);
static BOOL has_shell_metachars(const char *ptr);
static long tokenize(const char *str, char **dest, char ***destv);
static void get_shell(void);
static char* find_next_space(const char *s);
static int do_spawn2(pTHX_ const char *cmd, int exectype);
static long find_pid(pTHX_ int pid);
static void remove_dead_process(long child);
static int terminate_process(DWORD pid, HANDLE process_handle, int sig);
static int my_kill(int pid, int sig);
static void out_of_memory(void);
static char* wstr_to_str(const wchar_t* wstr);
static long filetime_to_clock(PFILETIME ft);
static BOOL filetime_from_time(PFILETIME ft, time_t t);
static char* create_command_line(char *cname, STRLEN clen,
const char * const *args);
static char* qualified_path(const char *cmd);
static void ansify_path(void);
static LRESULT win32_process_message(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam);
#ifdef USE_ITHREADS
static long find_pseudo_pid(pTHX_ int pid);
static void remove_dead_pseudo_process(long child);
static HWND get_hwnd_delay(pTHX, long child, DWORD tries);
#endif
#ifdef HAVE_INTERP_INTERN
static void win32_csighandler(int sig);
#endif
START_EXTERN_C
HANDLE w32_perldll_handle = INVALID_HANDLE_VALUE;
char w32_module_name[MAX_PATH+1];
END_EXTERN_C
static OSVERSIONINFO g_osver = {0, 0, 0, 0, 0, ""};
#ifdef SET_INVALID_PARAMETER_HANDLER
static BOOL silent_invalid_parameter_handler = FALSE;
static BOOL
set_silent_invalid_parameter_handler(BOOL newvalue)
{
BOOL oldvalue = silent_invalid_parameter_handler;
# ifdef _DEBUG
silent_invalid_parameter_handler = newvalue;
# endif
return oldvalue;
}
static void
my_invalid_parameter_handler(const wchar_t* expression,
const wchar_t* function,
const wchar_t* file,
unsigned int line,
uintptr_t pReserved)
{
# ifdef _DEBUG
char* ansi_expression;
char* ansi_function;
char* ansi_file;
if (silent_invalid_parameter_handler)
return;
ansi_expression = wstr_to_str(expression);
ansi_function = wstr_to_str(function);
ansi_file = wstr_to_str(file);
fprintf(stderr, "Invalid parameter detected in function %s. "
"File: %s, line: %d\n", ansi_function, ansi_file, line);
fprintf(stderr, "Expression: %s\n", ansi_expression);
free(ansi_expression);
free(ansi_function);
free(ansi_file);
# endif
}
#endif
EXTERN_C void
set_w32_module_name(void)
{
/* this function may be called at DLL_PROCESS_ATTACH time */
char* ptr;
HMODULE module = (HMODULE)((w32_perldll_handle == INVALID_HANDLE_VALUE)
? GetModuleHandle(NULL)
: w32_perldll_handle);
OSVERSIONINFO osver; /* g_osver may not yet be initialized */
osver.dwOSVersionInfoSize = sizeof(osver);
GetVersionEx(&osver);
if (osver.dwMajorVersion > 4) {
WCHAR modulename[MAX_PATH];
WCHAR fullname[MAX_PATH];
char *ansi;
DWORD (__stdcall *pfnGetLongPathNameW)(LPCWSTR, LPWSTR, DWORD) =
(DWORD (__stdcall *)(LPCWSTR, LPWSTR, DWORD))
GetProcAddress(GetModuleHandle("kernel32.dll"), "GetLongPathNameW");
GetModuleFileNameW(module, modulename, sizeof(modulename)/sizeof(WCHAR));
/* Make sure we get an absolute pathname in case the module was loaded
* explicitly by LoadLibrary() with a relative path. */
GetFullPathNameW(modulename, sizeof(fullname)/sizeof(WCHAR), fullname, NULL);
/* Make sure we start with the long path name of the module because we
* later scan for pathname components to match "5.xx" to locate
* compatible sitelib directories, and the short pathname might mangle
* this path segment (e.g. by removing the dot on NTFS to something
* like "5xx~1.yy") */
if (pfnGetLongPathNameW)
pfnGetLongPathNameW(fullname, fullname, sizeof(fullname)/sizeof(WCHAR));
/* remove \\?\ prefix */
if (memcmp(fullname, L"\\\\?\\", 4*sizeof(WCHAR)) == 0)
memmove(fullname, fullname+4, (wcslen(fullname+4)+1)*sizeof(WCHAR));
ansi = win32_ansipath(fullname);
my_strlcpy(w32_module_name, ansi, sizeof(w32_module_name));
win32_free(ansi);
}
else {
GetModuleFileName(module, w32_module_name, sizeof(w32_module_name));
/* remove \\?\ prefix */
if (memcmp(w32_module_name, "\\\\?\\", 4) == 0)
memmove(w32_module_name, w32_module_name+4, strlen(w32_module_name+4)+1);
/* try to get full path to binary (which may be mangled when perl is
* run from a 16-bit app) */
/*PerlIO_printf(Perl_debug_log, "Before %s\n", w32_module_name);*/
win32_longpath(w32_module_name);
/*PerlIO_printf(Perl_debug_log, "After %s\n", w32_module_name);*/
}
/* normalize to forward slashes */
ptr = w32_module_name;
while (*ptr) {
if (*ptr == '\\')
*ptr = '/';
++ptr;
}
}
/* *svp (if non-NULL) is expected to be POK (valid allocated SvPVX(*svp)) */
static char*
get_regstr_from(HKEY hkey, const char *valuename, SV **svp)
{
/* Retrieve a REG_SZ or REG_EXPAND_SZ from the registry */
HKEY handle;
DWORD type;
const char *subkey = "Software\\Perl";
char *str = NULL;
long retval;
retval = RegOpenKeyEx(hkey, subkey, 0, KEY_READ, &handle);
if (retval == ERROR_SUCCESS) {
DWORD datalen;
retval = RegQueryValueEx(handle, valuename, 0, &type, NULL, &datalen);
if (retval == ERROR_SUCCESS
&& (type == REG_SZ || type == REG_EXPAND_SZ))
{
dTHX;
if (!*svp)
*svp = sv_2mortal(newSVpvn("",0));
SvGROW(*svp, datalen);
retval = RegQueryValueEx(handle, valuename, 0, NULL,
(PBYTE)SvPVX(*svp), &datalen);
if (retval == ERROR_SUCCESS) {
str = SvPVX(*svp);
SvCUR_set(*svp,datalen-1);
}
}
RegCloseKey(handle);
}
return str;
}
/* *svp (if non-NULL) is expected to be POK (valid allocated SvPVX(*svp)) */
static char*
get_regstr(const char *valuename, SV **svp)
{
char *str = get_regstr_from(HKEY_CURRENT_USER, valuename, svp);
if (!str)
str = get_regstr_from(HKEY_LOCAL_MACHINE, valuename, svp);
return str;
}
/* *prev_pathp (if non-NULL) is expected to be POK (valid allocated SvPVX(sv)) */
static char *
get_emd_part(SV **prev_pathp, STRLEN *const len, char *trailing_path, ...)
{
char base[10];
va_list ap;
char mod_name[MAX_PATH+1];
char *ptr;
char *optr;
char *strip;
STRLEN baselen;
va_start(ap, trailing_path);
strip = va_arg(ap, char *);
sprintf(base, "%d.%d", (int)PERL_REVISION, (int)PERL_VERSION);
baselen = strlen(base);
if (!*w32_module_name) {
set_w32_module_name();
}
strcpy(mod_name, w32_module_name);
ptr = strrchr(mod_name, '/');
while (ptr && strip) {
/* look for directories to skip back */
optr = ptr;
*ptr = '\0';
ptr = strrchr(mod_name, '/');
/* avoid stripping component if there is no slash,
* or it doesn't match ... */
if (!ptr || stricmp(ptr+1, strip) != 0) {
/* ... but not if component matches m|5\.$patchlevel.*| */
if (!ptr || !(*strip == '5' && *(ptr+1) == '5'
&& strncmp(strip, base, baselen) == 0
&& strncmp(ptr+1, base, baselen) == 0))
{
*optr = '/';
ptr = optr;
}
}
strip = va_arg(ap, char *);
}
if (!ptr) {
ptr = mod_name;
*ptr++ = '.';
*ptr = '/';
}
va_end(ap);
strcpy(++ptr, trailing_path);
/* only add directory if it exists */
if (GetFileAttributes(mod_name) != (DWORD) -1) {
/* directory exists */
dTHX;
if (!*prev_pathp)
*prev_pathp = sv_2mortal(newSVpvn("",0));
else if (SvPVX(*prev_pathp))
sv_catpvn(*prev_pathp, ";", 1);
sv_catpv(*prev_pathp, mod_name);
if(len)
*len = SvCUR(*prev_pathp);
return SvPVX(*prev_pathp);
}
return NULL;
}
EXTERN_C char *
win32_get_privlib(const char *pl, STRLEN *const len)
{
char *stdlib = "lib";
char buffer[MAX_PATH+1];
SV *sv = NULL;
/* $stdlib = $HKCU{"lib-$]"} || $HKLM{"lib-$]"} || $HKCU{"lib"} || $HKLM{"lib"} || ""; */
sprintf(buffer, "%s-%s", stdlib, pl);
if (!get_regstr(buffer, &sv))
(void)get_regstr(stdlib, &sv);
/* $stdlib .= ";$EMD/../../lib" */
return get_emd_part(&sv, len, stdlib, ARCHNAME, "bin", NULL);
}
static char *
win32_get_xlib(const char *pl, const char *xlib, const char *libname,
STRLEN *const len)
{
char regstr[40];
char pathstr[MAX_PATH+1];
SV *sv1 = NULL;
SV *sv2 = NULL;
/* $HKCU{"$xlib-$]"} || $HKLM{"$xlib-$]"} . ---; */
sprintf(regstr, "%s-%s", xlib, pl);
(void)get_regstr(regstr, &sv1);
/* $xlib .=
* ";$EMD/" . ((-d $EMD/../../../$]) ? "../../.." : "../.."). "/$libname/$]/lib"; */
sprintf(pathstr, "%s/%s/lib", libname, pl);
(void)get_emd_part(&sv1, NULL, pathstr, ARCHNAME, "bin", pl, NULL);
/* $HKCU{$xlib} || $HKLM{$xlib} . ---; */
(void)get_regstr(xlib, &sv2);
/* $xlib .=
* ";$EMD/" . ((-d $EMD/../../../$]) ? "../../.." : "../.."). "/$libname/lib"; */
sprintf(pathstr, "%s/lib", libname);
(void)get_emd_part(&sv2, NULL, pathstr, ARCHNAME, "bin", pl, NULL);
if (!sv1 && !sv2)
return NULL;
if (!sv1) {
sv1 = sv2;
} else if (sv2) {
dTHX;
sv_catpvn(sv1, ";", 1);
sv_catsv(sv1, sv2);
}
if (len)
*len = SvCUR(sv1);
return SvPVX(sv1);
}
EXTERN_C char *
win32_get_sitelib(const char *pl, STRLEN *const len)
{
return win32_get_xlib(pl, "sitelib", "site", len);
}
#ifndef PERL_VENDORLIB_NAME
# define PERL_VENDORLIB_NAME "vendor"
#endif
EXTERN_C char *
win32_get_vendorlib(const char *pl, STRLEN *const len)
{
return win32_get_xlib(pl, "vendorlib", PERL_VENDORLIB_NAME, len);
}
static BOOL
has_shell_metachars(const char *ptr)
{
int inquote = 0;
char quote = '\0';
/*
* Scan string looking for redirection (< or >) or pipe
* characters (|) that are not in a quoted string.
* Shell variable interpolation (%VAR%) can also happen inside strings.
*/
while (*ptr) {
switch(*ptr) {
case '%':
return TRUE;
case '\'':
case '\"':
if (inquote) {
if (quote == *ptr) {
inquote = 0;
quote = '\0';
}
}
else {
quote = *ptr;
inquote++;
}
break;
case '>':
case '<':
case '|':
if (!inquote)
return TRUE;
default:
break;
}
++ptr;
}
return FALSE;
}
#if !defined(PERL_IMPLICIT_SYS)
/* since the current process environment is being updated in util.c
* the library functions will get the correct environment
*/
PerlIO *
Perl_my_popen(pTHX_ const char *cmd, const char *mode)
{
PERL_FLUSHALL_FOR_CHILD;
return win32_popen(cmd, mode);
}
long
Perl_my_pclose(pTHX_ PerlIO *fp)
{
return win32_pclose(fp);
}
#endif
DllExport unsigned long
win32_os_id(void)
{
return (unsigned long)g_osver.dwPlatformId;
}
DllExport int
win32_getpid(void)
{
#ifdef USE_ITHREADS
dTHX;
if (w32_pseudo_id)
return -((int)w32_pseudo_id);
#endif
return _getpid();
}
/* Tokenize a string. Words are null-separated, and the list
* ends with a doubled null. Any character (except null and
* including backslash) may be escaped by preceding it with a
* backslash (the backslash will be stripped).
* Returns number of words in result buffer.
*/
static long
tokenize(const char *str, char **dest, char ***destv)
{
char *retstart = NULL;
char **retvstart = 0;
int items = -1;
if (str) {
int slen = strlen(str);
char *ret;
char **retv;
Newx(ret, slen+2, char);
Newx(retv, (slen+3)/2, char*);
retstart = ret;
retvstart = retv;
*retv = ret;
items = 0;
while (*str) {
*ret = *str++;
if (*ret == '\\' && *str)
*ret = *str++;
else if (*ret == ' ') {
while (*str == ' ')
str++;
if (ret == retstart)
ret--;
else {
*ret = '\0';
++items;
if (*str)
*++retv = ret+1;
}
}
else if (!*str)
++items;
ret++;
}
retvstart[items] = NULL;
*ret++ = '\0';
*ret = '\0';
}
*dest = retstart;
*destv = retvstart;
return items;
}
static void
get_shell(void)
{
dTHX;
if (!w32_perlshell_tokens) {
/* we don't use COMSPEC here for two reasons:
* 1. the same reason perl on UNIX doesn't use SHELL--rampant and
* uncontrolled unportability of the ensuing scripts.
* 2. PERL5SHELL could be set to a shell that may not be fit for
* interactive use (which is what most programs look in COMSPEC
* for).
*/
const char* defaultshell = "cmd.exe /x/d/c";
const char *usershell = PerlEnv_getenv("PERL5SHELL");
w32_perlshell_items = tokenize(usershell ? usershell : defaultshell,
&w32_perlshell_tokens,
&w32_perlshell_vec);
}
}
int
Perl_do_aspawn(pTHX_ SV *really, SV **mark, SV **sp)
{
char **argv;
char *str;
int status;
int flag = P_WAIT;
int index = 0;
PERL_ARGS_ASSERT_DO_ASPAWN;
if (sp <= mark)
return -1;
get_shell();
Newx(argv, (sp - mark) + w32_perlshell_items + 2, char*);
if (SvNIOKp(*(mark+1)) && !SvPOKp(*(mark+1))) {
++mark;
flag = SvIVx(*mark);
}
while (++mark <= sp) {
if (*mark && (str = SvPV_nolen(*mark)))
argv[index++] = str;
else
argv[index++] = "";
}
argv[index++] = 0;
status = win32_spawnvp(flag,
(const char*)(really ? SvPV_nolen(really) : argv[0]),
(const char* const*)argv);
if (status < 0 && (errno == ENOEXEC || errno == ENOENT)) {
/* possible shell-builtin, invoke with shell */
int sh_items;
sh_items = w32_perlshell_items;
while (--index >= 0)
argv[index+sh_items] = argv[index];
while (--sh_items >= 0)
argv[sh_items] = w32_perlshell_vec[sh_items];
status = win32_spawnvp(flag,
(const char*)(really ? SvPV_nolen(really) : argv[0]),
(const char* const*)argv);
}
if (flag == P_NOWAIT) {
PL_statusvalue = -1; /* >16bits hint for pp_system() */
}
else {
if (status < 0) {
if (ckWARN(WARN_EXEC))
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't spawn \"%s\": %s", argv[0], strerror(errno));
status = 255 * 256;
}
else
status *= 256;
PL_statusvalue = status;
}
Safefree(argv);
return (status);
}
/* returns pointer to the next unquoted space or the end of the string */
static char*
find_next_space(const char *s)
{
bool in_quotes = FALSE;
while (*s) {
/* ignore doubled backslashes, or backslash+quote */
if (*s == '\\' && (s[1] == '\\' || s[1] == '"')) {
s += 2;
}
/* keep track of when we're within quotes */
else if (*s == '"') {
s++;
in_quotes = !in_quotes;
}
/* break it up only at spaces that aren't in quotes */
else if (!in_quotes && isSPACE(*s))
return (char*)s;
else
s++;
}
return (char*)s;
}
static int
do_spawn2(pTHX_ const char *cmd, int exectype)
{
char **a;
char *s;
char **argv;
int status = -1;
BOOL needToTry = TRUE;
char *cmd2;
/* Save an extra exec if possible. See if there are shell
* metacharacters in it */
if (!has_shell_metachars(cmd)) {
Newx(argv, strlen(cmd) / 2 + 2, char*);
Newx(cmd2, strlen(cmd) + 1, char);
strcpy(cmd2, cmd);
a = argv;
for (s = cmd2; *s;) {
while (*s && isSPACE(*s))
s++;
if (*s)
*(a++) = s;
s = find_next_space(s);
if (*s)
*s++ = '\0';
}
*a = NULL;
if (argv[0]) {
switch (exectype) {
case EXECF_SPAWN:
status = win32_spawnvp(P_WAIT, argv[0],
(const char* const*)argv);
break;
case EXECF_SPAWN_NOWAIT:
status = win32_spawnvp(P_NOWAIT, argv[0],
(const char* const*)argv);
break;
case EXECF_EXEC:
status = win32_execvp(argv[0], (const char* const*)argv);
break;
}
if (status != -1 || errno == 0)
needToTry = FALSE;
}
Safefree(argv);
Safefree(cmd2);
}
if (needToTry) {
char **argv;
int i = -1;
get_shell();
Newx(argv, w32_perlshell_items + 2, char*);
while (++i < w32_perlshell_items)
argv[i] = w32_perlshell_vec[i];
argv[i++] = (char *)cmd;
argv[i] = NULL;
switch (exectype) {
case EXECF_SPAWN:
status = win32_spawnvp(P_WAIT, argv[0],
(const char* const*)argv);
break;
case EXECF_SPAWN_NOWAIT:
status = win32_spawnvp(P_NOWAIT, argv[0],
(const char* const*)argv);
break;
case EXECF_EXEC:
status = win32_execvp(argv[0], (const char* const*)argv);
break;
}
cmd = argv[0];
Safefree(argv);
}
if (exectype == EXECF_SPAWN_NOWAIT) {
PL_statusvalue = -1; /* >16bits hint for pp_system() */
}
else {
if (status < 0) {
if (ckWARN(WARN_EXEC))
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't %s \"%s\": %s",
(exectype == EXECF_EXEC ? "exec" : "spawn"),
cmd, strerror(errno));
status = 255 * 256;
}
else
status *= 256;
PL_statusvalue = status;
}
return (status);
}
int
Perl_do_spawn(pTHX_ char *cmd)
{
PERL_ARGS_ASSERT_DO_SPAWN;
return do_spawn2(aTHX_ cmd, EXECF_SPAWN);
}
int
Perl_do_spawn_nowait(pTHX_ char *cmd)
{
PERL_ARGS_ASSERT_DO_SPAWN_NOWAIT;
return do_spawn2(aTHX_ cmd, EXECF_SPAWN_NOWAIT);
}
bool
Perl_do_exec(pTHX_ const char *cmd)
{
PERL_ARGS_ASSERT_DO_EXEC;
do_spawn2(aTHX_ cmd, EXECF_EXEC);
return FALSE;
}
/* The idea here is to read all the directory names into a string table
* (separated by nulls) and when one of the other dir functions is called
* return the pointer to the current file name.
*/
DllExport DIR *
win32_opendir(const char *filename)
{
dTHXa(NULL);
DIR *dirp;
long len;
long idx;
char scanname[MAX_PATH+3];
WCHAR wscanname[sizeof(scanname)];
WIN32_FIND_DATAW wFindData;
char buffer[MAX_PATH*2];
BOOL use_default;
len = strlen(filename);
if (len == 0) {
errno = ENOENT;
return NULL;
}
if (len > MAX_PATH) {
errno = ENAMETOOLONG;
return NULL;
}
/* Get us a DIR structure */
Newxz(dirp, 1, DIR);
/* Create the search pattern */
strcpy(scanname, filename);
/* bare drive name means look in cwd for drive */
if (len == 2 && isALPHA(scanname[0]) && scanname[1] == ':') {
scanname[len++] = '.';
scanname[len++] = '/';
}
else if (scanname[len-1] != '/' && scanname[len-1] != '\\') {
scanname[len++] = '/';
}
scanname[len++] = '*';
scanname[len] = '\0';
/* do the FindFirstFile call */
MultiByteToWideChar(CP_ACP, 0, scanname, -1, wscanname, sizeof(wscanname)/sizeof(WCHAR));
aTHXa(PERL_GET_THX);
dirp->handle = FindFirstFileW(PerlDir_mapW(wscanname), &wFindData);
if (dirp->handle == INVALID_HANDLE_VALUE) {
DWORD err = GetLastError();
/* FindFirstFile() fails on empty drives! */
switch (err) {
case ERROR_FILE_NOT_FOUND:
return dirp;
case ERROR_NO_MORE_FILES:
case ERROR_PATH_NOT_FOUND:
errno = ENOENT;
break;
case ERROR_NOT_ENOUGH_MEMORY:
errno = ENOMEM;
break;
default:
errno = EINVAL;
break;
}
Safefree(dirp);
return NULL;
}
use_default = FALSE;
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS,
wFindData.cFileName, -1,
buffer, sizeof(buffer), NULL, &use_default);
if (use_default && *wFindData.cAlternateFileName) {
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS,
wFindData.cAlternateFileName, -1,
buffer, sizeof(buffer), NULL, NULL);
}
/* now allocate the first part of the string table for
* the filenames that we find.
*/
idx = strlen(buffer)+1;
if (idx < 256)
dirp->size = 256;
else
dirp->size = idx;
Newx(dirp->start, dirp->size, char);
strcpy(dirp->start, buffer);
dirp->nfiles++;
dirp->end = dirp->curr = dirp->start;
dirp->end += idx;
return dirp;
}
/* Readdir just returns the current string pointer and bumps the
* string pointer to the nDllExport entry.
*/
DllExport struct direct *
win32_readdir(DIR *dirp)
{
long len;
if (dirp->curr) {
/* first set up the structure to return */
len = strlen(dirp->curr);
strcpy(dirp->dirstr.d_name, dirp->curr);
dirp->dirstr.d_namlen = len;
/* Fake an inode */
dirp->dirstr.d_ino = dirp->curr - dirp->start;
/* Now set up for the next call to readdir */
dirp->curr += len + 1;
if (dirp->curr >= dirp->end) {
BOOL res;
char buffer[MAX_PATH*2];
if (dirp->handle == INVALID_HANDLE_VALUE) {
res = 0;
}
/* finding the next file that matches the wildcard
* (which should be all of them in this directory!).
*/
else {
WIN32_FIND_DATAW wFindData;
res = FindNextFileW(dirp->handle, &wFindData);
if (res) {
BOOL use_default = FALSE;
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS,
wFindData.cFileName, -1,
buffer, sizeof(buffer), NULL, &use_default);
if (use_default && *wFindData.cAlternateFileName) {
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS,
wFindData.cAlternateFileName, -1,
buffer, sizeof(buffer), NULL, NULL);
}
}
}
if (res) {
long endpos = dirp->end - dirp->start;
long newsize = endpos + strlen(buffer) + 1;
/* bump the string table size by enough for the
* new name and its null terminator */
while (newsize > dirp->size) {
long curpos = dirp->curr - dirp->start;
dirp->size *= 2;
Renew(dirp->start, dirp->size, char);
dirp->curr = dirp->start + curpos;
}
strcpy(dirp->start + endpos, buffer);
dirp->end = dirp->start + newsize;
dirp->nfiles++;
}
else {
dirp->curr = NULL;
if (dirp->handle != INVALID_HANDLE_VALUE) {
FindClose(dirp->handle);
dirp->handle = INVALID_HANDLE_VALUE;
}
}
}
return &(dirp->dirstr);
}
else
return NULL;
}
/* Telldir returns the current string pointer position */
DllExport long
win32_telldir(DIR *dirp)
{
return dirp->curr ? (dirp->curr - dirp->start) : -1;
}
/* Seekdir moves the string pointer to a previously saved position
* (returned by telldir).
*/
DllExport void
win32_seekdir(DIR *dirp, long loc)
{
dirp->curr = loc == -1 ? NULL : dirp->start + loc;
}
/* Rewinddir resets the string pointer to the start */
DllExport void
win32_rewinddir(DIR *dirp)
{
dirp->curr = dirp->start;
}
/* free the memory allocated by opendir */
DllExport int
win32_closedir(DIR *dirp)
{
if (dirp->handle != INVALID_HANDLE_VALUE)
FindClose(dirp->handle);
Safefree(dirp->start);
Safefree(dirp);
return 1;
}
/* duplicate a open DIR* for interpreter cloning */
DllExport DIR *
win32_dirp_dup(DIR *const dirp, CLONE_PARAMS *const param)
{
dVAR;
PerlInterpreter *const from = param->proto_perl;
PerlInterpreter *const to = (PerlInterpreter *)PERL_GET_THX;
long pos;
DIR *dup;
/* switch back to original interpreter because win32_readdir()
* might Renew(dirp->start).
*/
if (from != to) {
PERL_SET_THX(from);
}
/* mark current position; read all remaining entries into the
* cache, and then restore to current position.
*/
pos = win32_telldir(dirp);
while (win32_readdir(dirp)) {
/* read all entries into cache */
}
win32_seekdir(dirp, pos);
/* switch back to new interpreter to allocate new DIR structure */
if (from != to) {
PERL_SET_THX(to);
}
Newx(dup, 1, DIR);
memcpy(dup, dirp, sizeof(DIR));
Newx(dup->start, dirp->size, char);
memcpy(dup->start, dirp->start, dirp->size);
dup->end = dup->start + (dirp->end - dirp->start);
if (dirp->curr)
dup->curr = dup->start + (dirp->curr - dirp->start);
return dup;
}
/*
* various stubs
*/
/* Ownership
*
* Just pretend that everyone is a superuser. NT will let us know if
* we don\'t really have permission to do something.
*/
#define ROOT_UID ((uid_t)0)
#define ROOT_GID ((gid_t)0)
uid_t
getuid(void)
{
return ROOT_UID;
}
uid_t
geteuid(void)
{
return ROOT_UID;
}
gid_t
getgid(void)
{
return ROOT_GID;
}
gid_t
getegid(void)
{
return ROOT_GID;
}
int
setuid(uid_t auid)
{
return (auid == ROOT_UID ? 0 : -1);
}
int
setgid(gid_t agid)
{
return (agid == ROOT_GID ? 0 : -1);
}
EXTERN_C char *
getlogin(void)
{
dTHX;
char *buf = w32_getlogin_buffer;
DWORD size = sizeof(w32_getlogin_buffer);
if (GetUserName(buf,&size))
return buf;
return (char*)NULL;
}
int
chown(const char *path, uid_t owner, gid_t group)
{
/* XXX noop */
return 0;
}
/*
* XXX this needs strengthening (for PerlIO)
* -- BKS, 11-11-200
*/
int mkstemp(const char *path)
{
dTHX;
char buf[MAX_PATH+1];
int i = 0, fd = -1;
retry:
if (i++ > 10) { /* give up */
errno = ENOENT;
return -1;
}
if (!GetTempFileNameA((LPCSTR)path, "plr", 1, buf)) {
errno = ENOENT;
return -1;
}
fd = PerlLIO_open3(buf, O_CREAT|O_RDWR|O_EXCL, 0600);
if (fd == -1)
goto retry;
return fd;
}
static long
find_pid(pTHX_ int pid)
{
long child = w32_num_children;
while (--child >= 0) {
if ((int)w32_child_pids[child] == pid)
return child;
}
return -1;
}
static void
remove_dead_process(long child)
{
if (child >= 0) {
dTHX;
CloseHandle(w32_child_handles[child]);
Move(&w32_child_handles[child+1], &w32_child_handles[child],
(w32_num_children-child-1), HANDLE);
Move(&w32_child_pids[child+1], &w32_child_pids[child],
(w32_num_children-child-1), DWORD);
w32_num_children--;
}
}
#ifdef USE_ITHREADS
static long
find_pseudo_pid(pTHX_ int pid)
{
long child = w32_num_pseudo_children;
while (--child >= 0) {
if ((int)w32_pseudo_child_pids[child] == pid)
return child;
}
return -1;
}
static void
remove_dead_pseudo_process(long child)
{
if (child >= 0) {
dTHX;
CloseHandle(w32_pseudo_child_handles[child]);
Move(&w32_pseudo_child_handles[child+1], &w32_pseudo_child_handles[child],
(w32_num_pseudo_children-child-1), HANDLE);
Move(&w32_pseudo_child_pids[child+1], &w32_pseudo_child_pids[child],
(w32_num_pseudo_children-child-1), DWORD);
Move(&w32_pseudo_child_message_hwnds[child+1], &w32_pseudo_child_message_hwnds[child],
(w32_num_pseudo_children-child-1), HWND);
Move(&w32_pseudo_child_sigterm[child+1], &w32_pseudo_child_sigterm[child],
(w32_num_pseudo_children-child-1), char);
w32_num_pseudo_children--;
}
}
void
win32_wait_for_children(pTHX)
{
if (w32_pseudo_children && w32_num_pseudo_children) {
long child = 0;
long count = 0;
HANDLE handles[MAXIMUM_WAIT_OBJECTS];
for (child = 0; child < w32_num_pseudo_children; ++child) {
if (!w32_pseudo_child_sigterm[child])
handles[count++] = w32_pseudo_child_handles[child];
}
/* XXX should use MsgWaitForMultipleObjects() to continue
* XXX processing messages while we wait.
*/
WaitForMultipleObjects(count, handles, TRUE, INFINITE);
while (w32_num_pseudo_children)
CloseHandle(w32_pseudo_child_handles[--w32_num_pseudo_children]);
}
}
#endif
static int
terminate_process(DWORD pid, HANDLE process_handle, int sig)
{
switch(sig) {
case 0:
/* "Does process exist?" use of kill */
return 1;
case 2:
if (GenerateConsoleCtrlEvent(CTRL_C_EVENT, pid))
return 1;
break;
case SIGBREAK:
case SIGTERM:
if (GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, pid))
return 1;
break;
default: /* For now be backwards compatible with perl 5.6 */
case 9:
/* Note that we will only be able to kill processes owned by the
* current process owner, even when we are running as an administrator.
* To kill processes of other owners we would need to set the
* 'SeDebugPrivilege' privilege before obtaining the process handle.
*/
if (TerminateProcess(process_handle, sig))
return 1;
break;
}
return 0;
}
int
killpg(int pid, int sig)
{
HANDLE process_handle;
HANDLE snapshot_handle;
int killed = 0;
process_handle = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
if (process_handle == NULL)
return 0;
killed += terminate_process(pid, process_handle, sig);
snapshot_handle = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (snapshot_handle != INVALID_HANDLE_VALUE) {
PROCESSENTRY32 entry;
entry.dwSize = sizeof(entry);
if (Process32First(snapshot_handle, &entry)) {
do {
if (entry.th32ParentProcessID == (DWORD)pid)
killed += killpg(entry.th32ProcessID, sig);
entry.dwSize = sizeof(entry);
}
while (Process32Next(snapshot_handle, &entry));
}
CloseHandle(snapshot_handle);
}
CloseHandle(process_handle);
return killed;
}
static int
my_kill(int pid, int sig)
{
int retval = 0;
HANDLE process_handle;
if (sig < 0)
return killpg(pid, -sig);
process_handle = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
/* OpenProcess() returns NULL on error, *not* INVALID_HANDLE_VALUE */
if (process_handle != NULL) {
retval = terminate_process(pid, process_handle, sig);
CloseHandle(process_handle);
}
return retval;
}
#ifdef USE_ITHREADS
/* Get a child pseudo-process HWND, with retrying and delaying/yielding.
* The "tries" parameter is the number of retries to make, with a Sleep(1)
* (waiting and yielding the time slot) between each try. Specifying 0 causes
* only Sleep(0) (no waiting and potentially no yielding) to be used, so is not
* recommended
* Returns an hwnd != INVALID_HANDLE_VALUE (so be aware that NULL can be
* returned) or croaks if the child pseudo-process doesn't schedule and deliver
* a HWND in the time period allowed.
*/
static HWND
get_hwnd_delay(pTHX, long child, DWORD tries)
{
HWND hwnd = w32_pseudo_child_message_hwnds[child];
if (hwnd != INVALID_HANDLE_VALUE) return hwnd;
/* Pseudo-process has not yet properly initialized since hwnd isn't set.
* Fast sleep: On some NT kernels/systems, a Sleep(0) won't deschedule a
* thread 100% of the time since threads are attached to a CPU for NUMA and
* caching reasons, and the child thread was attached to a different CPU
* therefore there is no workload on that CPU and Sleep(0) returns control
* without yielding the time slot.
* https://rt.perl.org/rt3/Ticket/Display.html?id=88840
*/
Sleep(0);
win32_async_check(aTHX);
hwnd = w32_pseudo_child_message_hwnds[child];
if (hwnd != INVALID_HANDLE_VALUE) return hwnd;
{
unsigned int count = 0;
/* No Sleep(1) if tries==0, just fail instead if we get this far. */
while (count++ < tries) {
Sleep(1);
win32_async_check(aTHX);
hwnd = w32_pseudo_child_message_hwnds[child];
if (hwnd != INVALID_HANDLE_VALUE) return hwnd;
}
}
Perl_croak(aTHX_ "panic: child pseudo-process was never scheduled");
}
#endif
DllExport int
win32_kill(int pid, int sig)
{
dTHX;
long child;
#ifdef USE_ITHREADS
if (pid < 0) {
/* it is a pseudo-forked child */
child = find_pseudo_pid(aTHX_ -pid);
if (child >= 0) {
HANDLE hProcess = w32_pseudo_child_handles[child];
switch (sig) {
case 0:
/* "Does process exist?" use of kill */
return 0;
case 9: {
/* kill -9 style un-graceful exit */
/* Do a wait to make sure child starts and isn't in DLL
* Loader Lock */
HWND hwnd = get_hwnd_delay(aTHX, child, 5);
if (TerminateThread(hProcess, sig)) {
/* Allow the scheduler to finish cleaning up the other
* thread.
* Otherwise, if we ExitProcess() before another context
* switch happens we will end up with a process exit
* code of "sig" instead of our own exit status.
* https://rt.cpan.org/Ticket/Display.html?id=66016#txn-908976
*/
Sleep(0);
remove_dead_pseudo_process(child);
return 0;
}
break;
}
default: {
HWND hwnd = get_hwnd_delay(aTHX, child, 5);
/* We fake signals to pseudo-processes using Win32
* message queue. */
if ((hwnd != NULL && PostMessage(hwnd, WM_USER_KILL, sig, 0)) ||
PostThreadMessage(-pid, WM_USER_KILL, sig, 0))
{
/* Don't wait for child process to terminate after we send a
* SIGTERM because the child may be blocked in a system call
* and never receive the signal.
*/
if (sig == SIGTERM) {
Sleep(0);
w32_pseudo_child_sigterm[child] = 1;
}
/* It might be us ... */
PERL_ASYNC_CHECK();
return 0;
}
break;
}
} /* switch */
}
}
else
#endif
{
child = find_pid(aTHX_ pid);
if (child >= 0) {
if (my_kill(pid, sig)) {
DWORD exitcode = 0;
if (GetExitCodeProcess(w32_child_handles[child], &exitcode) &&
exitcode != STILL_ACTIVE)
{
remove_dead_process(child);
}
return 0;
}
}
else {
if (my_kill(pid, sig))
return 0;
}
}
errno = EINVAL;
return -1;
}
DllExport int
win32_stat(const char *path, Stat_t *sbuf)
{
char buffer[MAX_PATH+1];
int l = strlen(path);
dTHX;
int res;
int nlink = 1;
BOOL expect_dir = FALSE;
GV *gv_sloppy = gv_fetchpvs("\027IN32_SLOPPY_STAT",
GV_NOTQUAL, SVt_PV);
BOOL sloppy = gv_sloppy && SvTRUE(GvSV(gv_sloppy));
if (l > 1) {
switch(path[l - 1]) {
/* FindFirstFile() and stat() are buggy with a trailing
* slashes, except for the root directory of a drive */
case '\\':
case '/':
if (l > sizeof(buffer)) {
errno = ENAMETOOLONG;
return -1;
}
--l;
strncpy(buffer, path, l);
/* remove additional trailing slashes */
while (l > 1 && (buffer[l-1] == '/' || buffer[l-1] == '\\'))
--l;
/* add back slash if we otherwise end up with just a drive letter */
if (l == 2 && isALPHA(buffer[0]) && buffer[1] == ':')
buffer[l++] = '\\';
buffer[l] = '\0';
path = buffer;
expect_dir = TRUE;
break;
/* FindFirstFile() is buggy with "x:", so add a dot :-( */
case ':':
if (l == 2 && isALPHA(path[0])) {
buffer[0] = path[0];
buffer[1] = ':';
buffer[2] = '.';
buffer[3] = '\0';
l = 3;
path = buffer;
}
break;
}
}
path = PerlDir_mapA(path);
l = strlen(path);
if (!sloppy) {
/* We must open & close the file once; otherwise file attribute changes */
/* might not yet have propagated to "other" hard links of the same file. */
/* This also gives us an opportunity to determine the number of links. */
HANDLE handle = CreateFileA(path, 0, 0, NULL, OPEN_EXISTING, 0, NULL);
if (handle != INVALID_HANDLE_VALUE) {
BY_HANDLE_FILE_INFORMATION bhi;
if (GetFileInformationByHandle(handle, &bhi))
nlink = bhi.nNumberOfLinks;
CloseHandle(handle);
}
}
/* path will be mapped correctly above */
#if defined(WIN64) || defined(USE_LARGE_FILES)
res = _stati64(path, sbuf);
#else
res = stat(path, sbuf);
#endif
sbuf->st_nlink = nlink;
if (res < 0) {
/* CRT is buggy on sharenames, so make sure it really isn't.
* XXX using GetFileAttributesEx() will enable us to set
* sbuf->st_*time (but note that's not available on the
* Windows of 1995) */
DWORD r = GetFileAttributesA(path);
if (r != 0xffffffff && (r & FILE_ATTRIBUTE_DIRECTORY)) {
/* sbuf may still contain old garbage since stat() failed */
Zero(sbuf, 1, Stat_t);
sbuf->st_mode = S_IFDIR | S_IREAD;
errno = 0;
if (!(r & FILE_ATTRIBUTE_READONLY))
sbuf->st_mode |= S_IWRITE | S_IEXEC;
return 0;
}
}
else {
if (l == 3 && isALPHA(path[0]) && path[1] == ':'
&& (path[2] == '\\' || path[2] == '/'))
{
/* The drive can be inaccessible, some _stat()s are buggy */
if (!GetVolumeInformationA(path,NULL,0,NULL,NULL,NULL,NULL,0)) {
errno = ENOENT;
return -1;
}
}
if (expect_dir && !S_ISDIR(sbuf->st_mode)) {
errno = ENOTDIR;
return -1;
}
if (S_ISDIR(sbuf->st_mode)) {
/* Ensure the "write" bit is switched off in the mode for
* directories with the read-only attribute set. Some compilers
* switch it on for directories, which is technically correct
* (directories are indeed always writable unless denied by DACLs),
* but we want stat() and -w to reflect the state of the read-only
* attribute for symmetry with chmod(). */
DWORD r = GetFileAttributesA(path);
if (r != 0xffffffff && (r & FILE_ATTRIBUTE_READONLY)) {
sbuf->st_mode &= ~S_IWRITE;
}
}
}
return res;
}
#define isSLASH(c) ((c) == '/' || (c) == '\\')
#define SKIP_SLASHES(s) \
STMT_START { \
while (*(s) && isSLASH(*(s))) \
++(s); \
} STMT_END
#define COPY_NONSLASHES(d,s) \
STMT_START { \
while (*(s) && !isSLASH(*(s))) \
*(d)++ = *(s)++; \
} STMT_END
/* Find the longname of a given path. path is destructively modified.
* It should have space for at least MAX_PATH characters. */
DllExport char *
win32_longpath(char *path)
{
WIN32_FIND_DATA fdata;
HANDLE fhand;
char tmpbuf[MAX_PATH+1];
char *tmpstart = tmpbuf;
char *start = path;
char sep;
if (!path)
return NULL;
/* drive prefix */
if (isALPHA(path[0]) && path[1] == ':') {
start = path + 2;
*tmpstart++ = path[0];
*tmpstart++ = ':';
}
/* UNC prefix */
else if (isSLASH(path[0]) && isSLASH(path[1])) {
start = path + 2;
*tmpstart++ = path[0];
*tmpstart++ = path[1];
SKIP_SLASHES(start);
COPY_NONSLASHES(tmpstart,start); /* copy machine name */
if (*start) {
*tmpstart++ = *start++;
SKIP_SLASHES(start);
COPY_NONSLASHES(tmpstart,start); /* copy share name */
}
}
*tmpstart = '\0';
while (*start) {
/* copy initial slash, if any */
if (isSLASH(*start)) {
*tmpstart++ = *start++;
*tmpstart = '\0';
SKIP_SLASHES(start);
}
/* FindFirstFile() expands "." and "..", so we need to pass
* those through unmolested */
if (*start == '.'
&& (!start[1] || isSLASH(start[1])
|| (start[1] == '.' && (!start[2] || isSLASH(start[2])))))
{
COPY_NONSLASHES(tmpstart,start); /* copy "." or ".." */
*tmpstart = '\0';
continue;
}
/* if this is the end, bust outta here */
if (!*start)
break;
/* now we're at a non-slash; walk up to next slash */
while (*start && !isSLASH(*start))
++start;
/* stop and find full name of component */
sep = *start;
*start = '\0';
fhand = FindFirstFile(path,&fdata);
*start = sep;
if (fhand != INVALID_HANDLE_VALUE) {
STRLEN len = strlen(fdata.cFileName);
if ((STRLEN)(tmpbuf + sizeof(tmpbuf) - tmpstart) > len) {
strcpy(tmpstart, fdata.cFileName);
tmpstart += len;
FindClose(fhand);
}
else {
FindClose(fhand);
errno = ERANGE;
return NULL;
}
}
else {
/* failed a step, just return without side effects */
/*PerlIO_printf(Perl_debug_log, "Failed to find %s\n", path);*/
errno = EINVAL;
return NULL;
}
}
strcpy(path,tmpbuf);
return path;
}
static void
out_of_memory(void)
{
if (PL_curinterp)
croak_no_mem();
exit(1);
}
void
win32_croak_not_implemented(const char * fname)
{
PERL_ARGS_ASSERT_WIN32_CROAK_NOT_IMPLEMENTED;
Perl_croak_nocontext("%s not implemented!\n", fname);
}
/* Converts a wide character (UTF-16) string to the Windows ANSI code page,
* potentially using the system's default replacement character for any
* unrepresentable characters. The caller must free() the returned string. */
static char*
wstr_to_str(const wchar_t* wstr)
{
BOOL used_default = FALSE;
size_t wlen = wcslen(wstr) + 1;
int len = WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wstr, wlen,
NULL, 0, NULL, NULL);
char* str = (char*)malloc(len);
if (!str)
out_of_memory();
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wstr, wlen,
str, len, NULL, &used_default);
return str;
}
/* The win32_ansipath() function takes a Unicode filename and converts it
* into the current Windows codepage. If some characters cannot be mapped,
* then it will convert the short name instead.
*
* The buffer to the ansi pathname must be freed with win32_free() when it
* it no longer needed.
*
* The argument to win32_ansipath() must exist before this function is
* called; otherwise there is no way to determine the short path name.
*
* Ideas for future refinement:
* - Only convert those segments of the path that are not in the current
* codepage, but leave the other segments in their long form.
* - If the resulting name is longer than MAX_PATH, start converting
* additional path segments into short names until the full name
* is shorter than MAX_PATH. Shorten the filename part last!
*/
DllExport char *
win32_ansipath(const WCHAR *widename)
{
char *name;
BOOL use_default = FALSE;
size_t widelen = wcslen(widename)+1;
int len = WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, widename, widelen,
NULL, 0, NULL, NULL);
name = (char*)win32_malloc(len);
if (!name)
out_of_memory();
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, widename, widelen,
name, len, NULL, &use_default);
if (use_default) {
DWORD shortlen = GetShortPathNameW(widename, NULL, 0);
if (shortlen) {
WCHAR *shortname = (WCHAR*)win32_malloc(shortlen*sizeof(WCHAR));
if (!shortname)
out_of_memory();
shortlen = GetShortPathNameW(widename, shortname, shortlen)+1;
len = WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, shortname, shortlen,
NULL, 0, NULL, NULL);
name = (char*)win32_realloc(name, len);
if (!name)
out_of_memory();
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, shortname, shortlen,
name, len, NULL, NULL);
win32_free(shortname);
}
}
return name;
}
/* the returned string must be freed with win32_freeenvironmentstrings which is
* implemented as a macro
* void win32_freeenvironmentstrings(void* block)
*/
DllExport char *
win32_getenvironmentstrings(void)
{
LPWSTR lpWStr, lpWTmp;
LPSTR lpStr, lpTmp;
DWORD env_len, wenvstrings_len = 0, aenvstrings_len = 0;
/* Get the process environment strings */
lpWTmp = lpWStr = (LPWSTR) GetEnvironmentStringsW();
for (wenvstrings_len = 1; *lpWTmp != '\0'; lpWTmp += env_len + 1) {
env_len = wcslen(lpWTmp);
/* calculate the size of the environment strings */
wenvstrings_len += env_len + 1;
}
/* Get the number of bytes required to store the ACP encoded string */
aenvstrings_len = WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS,
lpWStr, wenvstrings_len, NULL, 0, NULL, NULL);
lpTmp = lpStr = (char *)win32_calloc(aenvstrings_len, sizeof(char));
if(!lpTmp)
out_of_memory();
/* Convert the string from UTF-16 encoding to ACP encoding */
WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, lpWStr, wenvstrings_len, lpStr,
aenvstrings_len, NULL, NULL);
return(lpStr);
}
DllExport char *
win32_getenv(const char *name)
{
dTHX;
DWORD needlen;
SV *curitem = NULL;
DWORD last_err;
needlen = GetEnvironmentVariableA(name,NULL,0);
if (needlen != 0) {
curitem = sv_2mortal(newSVpvn("", 0));
do {
SvGROW(curitem, needlen+1);
needlen = GetEnvironmentVariableA(name,SvPVX(curitem),
needlen);
} while (needlen >= SvLEN(curitem));
SvCUR_set(curitem, needlen);
}
else {
last_err = GetLastError();
if (last_err == ERROR_NOT_ENOUGH_MEMORY) {
/* It appears the variable is in the env, but the Win32 API
doesn't have a canned way of getting it. So we fall back to
grabbing the whole env and pulling this value out if possible */
char *envv = GetEnvironmentStrings();
char *cur = envv;
STRLEN len;
while (*cur) {
char *end = strchr(cur,'=');
if (end && end != cur) {
*end = '\0';
if (!strcmp(cur,name)) {
curitem = sv_2mortal(newSVpv(end+1,0));
*end = '=';
break;
}
*end = '=';
cur = end + strlen(end+1)+2;
}
else if ((len = strlen(cur)))
cur += len+1;
}
FreeEnvironmentStrings(envv);
}
else {
/* last ditch: allow any environment variables that begin with 'PERL'
to be obtained from the registry, if found there */
if (strncmp(name, "PERL", 4) == 0)
(void)get_regstr(name, &curitem);
}
}
if (curitem && SvCUR(curitem))
return SvPVX(curitem);
return NULL;
}
DllExport int
win32_putenv(const char *name)
{
char* curitem;
char* val;
int relval = -1;
if (name) {
curitem = (char *) win32_malloc(strlen(name)+1);
strcpy(curitem, name);
val = strchr(curitem, '=');
if (val) {
/* The sane way to deal with the environment.
* Has these advantages over putenv() & co.:
* * enables us to store a truly empty value in the
* environment (like in UNIX).
* * we don't have to deal with RTL globals, bugs and leaks
* (specifically, see http://support.microsoft.com/kb/235601).
* * Much faster.
* Why you may want to use the RTL environment handling
* (previously enabled by USE_WIN32_RTL_ENV):
* * environ[] and RTL functions will not reflect changes,
* which might be an issue if extensions want to access
* the env. via RTL. This cuts both ways, since RTL will
* not see changes made by extensions that call the Win32
* functions directly, either.
* GSAR 97-06-07
*/
*val++ = '\0';
if (SetEnvironmentVariableA(curitem, *val ? val : NULL))
relval = 0;
}
win32_free(curitem);
}
return relval;
}
static long
filetime_to_clock(PFILETIME ft)
{
__int64 qw = ft->dwHighDateTime;
qw <<= 32;
qw |= ft->dwLowDateTime;
qw /= 10000; /* File time ticks at 0.1uS, clock at 1mS */
return (long) qw;
}
DllExport int
win32_times(struct tms *timebuf)
{
FILETIME user;
FILETIME kernel;
FILETIME dummy;
clock_t process_time_so_far = clock();
if (GetProcessTimes(GetCurrentProcess(), &dummy, &dummy,
&kernel,&user)) {
timebuf->tms_utime = filetime_to_clock(&user);
timebuf->tms_stime = filetime_to_clock(&kernel);
timebuf->tms_cutime = 0;
timebuf->tms_cstime = 0;
} else {
/* That failed - e.g. Win95 fallback to clock() */
timebuf->tms_utime = process_time_so_far;
timebuf->tms_stime = 0;
timebuf->tms_cutime = 0;
timebuf->tms_cstime = 0;
}
return process_time_so_far;
}
/* fix utime() so it works on directories in NT */
static BOOL
filetime_from_time(PFILETIME pFileTime, time_t Time)
{
struct tm *pTM = localtime(&Time);
SYSTEMTIME SystemTime;
FILETIME LocalTime;
if (pTM == NULL)
return FALSE;
SystemTime.wYear = pTM->tm_year + 1900;
SystemTime.wMonth = pTM->tm_mon + 1;
SystemTime.wDay = pTM->tm_mday;
SystemTime.wHour = pTM->tm_hour;
SystemTime.wMinute = pTM->tm_min;
SystemTime.wSecond = pTM->tm_sec;
SystemTime.wMilliseconds = 0;
return SystemTimeToFileTime(&SystemTime, &LocalTime) &&
LocalFileTimeToFileTime(&LocalTime, pFileTime);
}
DllExport int
win32_unlink(const char *filename)
{
dTHX;
int ret;
DWORD attrs;
filename = PerlDir_mapA(filename);
attrs = GetFileAttributesA(filename);
if (attrs == 0xFFFFFFFF) {
errno = ENOENT;
return -1;
}
if (attrs & FILE_ATTRIBUTE_READONLY) {
(void)SetFileAttributesA(filename, attrs & ~FILE_ATTRIBUTE_READONLY);
ret = unlink(filename);
if (ret == -1)
(void)SetFileAttributesA(filename, attrs);
}
else
ret = unlink(filename);
return ret;
}
DllExport int
win32_utime(const char *filename, struct utimbuf *times)
{
dTHX;
HANDLE handle;
FILETIME ftCreate;
FILETIME ftAccess;
FILETIME ftWrite;
struct utimbuf TimeBuffer;
int rc;
filename = PerlDir_mapA(filename);
rc = utime(filename, times);
/* EACCES: path specifies directory or readonly file */
if (rc == 0 || errno != EACCES)
return rc;
if (times == NULL) {
times = &TimeBuffer;
time(×->actime);
times->modtime = times->actime;
}
/* This will (and should) still fail on readonly files */
handle = CreateFileA(filename, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (handle == INVALID_HANDLE_VALUE)
return rc;
if (GetFileTime(handle, &ftCreate, &ftAccess, &ftWrite) &&
filetime_from_time(&ftAccess, times->actime) &&
filetime_from_time(&ftWrite, times->modtime) &&
SetFileTime(handle, &ftCreate, &ftAccess, &ftWrite))
{
rc = 0;
}
CloseHandle(handle);
return rc;
}
typedef union {
unsigned __int64 ft_i64;
FILETIME ft_val;
} FT_t;
#ifdef __GNUC__
#define Const64(x) x##LL
#else
#define Const64(x) x##i64
#endif
/* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
#define EPOCH_BIAS Const64(116444736000000000)
/* NOTE: This does not compute the timezone info (doing so can be expensive,
* and appears to be unsupported even by glibc) */
DllExport int
win32_gettimeofday(struct timeval *tp, void *not_used)
{
FT_t ft;
/* this returns time in 100-nanosecond units (i.e. tens of usecs) */
GetSystemTimeAsFileTime(&ft.ft_val);
/* seconds since epoch */
tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(10000000));
/* microseconds remaining */
tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(1000000));
return 0;
}
DllExport int
win32_uname(struct utsname *name)
{
struct hostent *hep;
STRLEN nodemax = sizeof(name->nodename)-1;
/* sysname */
switch (g_osver.dwPlatformId) {
case VER_PLATFORM_WIN32_WINDOWS:
strcpy(name->sysname, "Windows");
break;
case VER_PLATFORM_WIN32_NT:
strcpy(name->sysname, "Windows NT");
break;
case VER_PLATFORM_WIN32s:
strcpy(name->sysname, "Win32s");
break;
default:
strcpy(name->sysname, "Win32 Unknown");
break;
}
/* release */
sprintf(name->release, "%d.%d",
g_osver.dwMajorVersion, g_osver.dwMinorVersion);
/* version */
sprintf(name->version, "Build %d",
g_osver.dwPlatformId == VER_PLATFORM_WIN32_NT
? g_osver.dwBuildNumber : (g_osver.dwBuildNumber & 0xffff));
if (g_osver.szCSDVersion[0]) {
char *buf = name->version + strlen(name->version);
sprintf(buf, " (%s)", g_osver.szCSDVersion);
}
/* nodename */
hep = win32_gethostbyname("localhost");
if (hep) {
STRLEN len = strlen(hep->h_name);
if (len <= nodemax) {
strcpy(name->nodename, hep->h_name);
}
else {
strncpy(name->nodename, hep->h_name, nodemax);
name->nodename[nodemax] = '\0';
}
}
else {
DWORD sz = nodemax;
if (!GetComputerName(name->nodename, &sz))
*name->nodename = '\0';
}
/* machine (architecture) */
{
SYSTEM_INFO info;
DWORD procarch;
char *arch;
GetSystemInfo(&info);
#if (defined(__MINGW32__) && !defined(_ANONYMOUS_UNION) && !defined(__MINGW_EXTENSION))
procarch = info.u.s.wProcessorArchitecture;
#else
procarch = info.wProcessorArchitecture;
#endif
switch (procarch) {
case PROCESSOR_ARCHITECTURE_INTEL:
arch = "x86"; break;
case PROCESSOR_ARCHITECTURE_IA64:
arch = "ia64"; break;
case PROCESSOR_ARCHITECTURE_AMD64:
arch = "amd64"; break;
case PROCESSOR_ARCHITECTURE_UNKNOWN:
arch = "unknown"; break;
default:
sprintf(name->machine, "unknown(0x%x)", procarch);
arch = name->machine;
break;
}
if (name->machine != arch)
strcpy(name->machine, arch);
}
return 0;
}
/* Timing related stuff */
int
do_raise(pTHX_ int sig)
{
if (sig < SIG_SIZE) {
Sighandler_t handler = w32_sighandler[sig];
if (handler == SIG_IGN) {
return 0;
}
else if (handler != SIG_DFL) {
(*handler)(sig);
return 0;
}
else {
/* Choose correct default behaviour */
switch (sig) {
#ifdef SIGCLD
case SIGCLD:
#endif
#ifdef SIGCHLD
case SIGCHLD:
#endif
case 0:
return 0;
case SIGTERM:
default:
break;
}
}
}
/* Tell caller to exit thread/process as approriate */
return 1;
}
void
sig_terminate(pTHX_ int sig)
{
Perl_warn(aTHX_ "Terminating on signal SIG%s(%d)\n",PL_sig_name[sig], sig);
/* exit() seems to be safe, my_exit() or die() is a problem in ^C
thread
*/
exit(sig);
}
DllExport int
win32_async_check(pTHX)
{
MSG msg;
HWND hwnd = w32_message_hwnd;
/* Reset w32_poll_count before doing anything else, incase we dispatch
* messages that end up calling back into perl */
w32_poll_count = 0;
if (hwnd != INVALID_HANDLE_VALUE) {
/* Passing PeekMessage -1 as HWND (2nd arg) only gets PostThreadMessage() messages
* and ignores window messages - should co-exist better with windows apps e.g. Tk
*/
if (hwnd == NULL)
hwnd = (HWND)-1;
while (PeekMessage(&msg, hwnd, WM_TIMER, WM_TIMER, PM_REMOVE|PM_NOYIELD) ||
PeekMessage(&msg, hwnd, WM_USER_MIN, WM_USER_MAX, PM_REMOVE|PM_NOYIELD))
{
/* re-post a WM_QUIT message (we'll mark it as read later) */
if(msg.message == WM_QUIT) {
PostQuitMessage((int)msg.wParam);
break;
}
if(!CallMsgFilter(&msg, MSGF_USER))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
}
/* Call PeekMessage() to mark all pending messages in the queue as "old".
* This is necessary when we are being called by win32_msgwait() to
* make sure MsgWaitForMultipleObjects() stops reporting the same waiting
* message over and over. An example how this can happen is when
* Perl is calling win32_waitpid() inside a GUI application and the GUI
* is generating messages before the process terminated.
*/
PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE|PM_NOYIELD);
/* Above or other stuff may have set a signal flag */
if (PL_sig_pending)
despatch_signals();
return 1;
}
/* This function will not return until the timeout has elapsed, or until
* one of the handles is ready. */
DllExport DWORD
win32_msgwait(pTHX_ DWORD count, LPHANDLE handles, DWORD timeout, LPDWORD resultp)
{
/* We may need several goes at this - so compute when we stop */
FT_t ticks = {0};
unsigned __int64 endtime = timeout;
if (timeout != INFINITE) {
GetSystemTimeAsFileTime(&ticks.ft_val);
ticks.ft_i64 /= 10000;
endtime += ticks.ft_i64;
}
/* This was a race condition. Do not let a non INFINITE timeout to
* MsgWaitForMultipleObjects roll under 0 creating a near
* infinity/~(UINT32)0 timeout which will appear as a deadlock to the
* user who did a CORE perl function with a non infinity timeout,
* sleep for example. This is 64 to 32 truncation minefield.
*
* This scenario can only be created if the timespan from the return of
* MsgWaitForMultipleObjects to GetSystemTimeAsFileTime exceeds 1 ms. To
* generate the scenario, manual breakpoints in a C debugger are required,
* or a context switch occured in win32_async_check in PeekMessage, or random
* messages are delivered to the *thread* message queue of the Perl thread
* from another process (msctf.dll doing IPC among its instances, VS debugger
* causes msctf.dll to be loaded into Perl by kernel), see [perl #33096].
*/
while (ticks.ft_i64 <= endtime) {
/* if timeout's type is lengthened, remember to split 64b timeout
* into multiple non-infinity runs of MWFMO */
DWORD result = MsgWaitForMultipleObjects(count, handles, FALSE,
(DWORD)(endtime - ticks.ft_i64),
QS_POSTMESSAGE|QS_TIMER|QS_SENDMESSAGE);
if (resultp)
*resultp = result;
if (result == WAIT_TIMEOUT) {
/* Ran out of time - explicit return of zero to avoid -ve if we
have scheduling issues
*/
return 0;
}
if (timeout != INFINITE) {
GetSystemTimeAsFileTime(&ticks.ft_val);
ticks.ft_i64 /= 10000;
}
if (result == WAIT_OBJECT_0 + count) {
/* Message has arrived - check it */
(void)win32_async_check(aTHX);
}
else {
/* Not timeout or message - one of handles is ready */
break;
}
}
/* If we are past the end say zero */
if (!ticks.ft_i64 || ticks.ft_i64 > endtime)
return 0;
/* compute time left to wait */
ticks.ft_i64 = endtime - ticks.ft_i64;
/* if more ms than DWORD, then return max DWORD */
return ticks.ft_i64 <= UINT_MAX ? (DWORD)ticks.ft_i64 : UINT_MAX;
}
int
win32_internal_wait(pTHX_ int *status, DWORD timeout)
{
/* XXX this wait emulation only knows about processes
* spawned via win32_spawnvp(P_NOWAIT, ...).
*/
int i, retval;
DWORD exitcode, waitcode;
#ifdef USE_ITHREADS
if (w32_num_pseudo_children) {
win32_msgwait(aTHX_ w32_num_pseudo_children, w32_pseudo_child_handles,
timeout, &waitcode);
/* Time out here if there are no other children to wait for. */
if (waitcode == WAIT_TIMEOUT) {
if (!w32_num_children) {
return 0;
}
}
else if (waitcode != WAIT_FAILED) {
if (waitcode >= WAIT_ABANDONED_0
&& waitcode < WAIT_ABANDONED_0 + w32_num_pseudo_children)
i = waitcode - WAIT_ABANDONED_0;
else
i = waitcode - WAIT_OBJECT_0;
if (GetExitCodeThread(w32_pseudo_child_handles[i], &exitcode)) {
*status = (int)((exitcode & 0xff) << 8);
retval = (int)w32_pseudo_child_pids[i];
remove_dead_pseudo_process(i);
return -retval;
}
}
}
#endif
if (!w32_num_children) {
errno = ECHILD;
return -1;
}
/* if a child exists, wait for it to die */
win32_msgwait(aTHX_ w32_num_children, w32_child_handles, timeout, &waitcode);
if (waitcode == WAIT_TIMEOUT) {
return 0;
}
if (waitcode != WAIT_FAILED) {
if (waitcode >= WAIT_ABANDONED_0
&& waitcode < WAIT_ABANDONED_0 + w32_num_children)
i = waitcode - WAIT_ABANDONED_0;
else
i = waitcode - WAIT_OBJECT_0;
if (GetExitCodeProcess(w32_child_handles[i], &exitcode) ) {
*status = (int)((exitcode & 0xff) << 8);
retval = (int)w32_child_pids[i];
remove_dead_process(i);
return retval;
}
}
errno = GetLastError();
return -1;
}
DllExport int
win32_waitpid(int pid, int *status, int flags)
{
dTHX;
DWORD timeout = (flags & WNOHANG) ? 0 : INFINITE;
int retval = -1;
long child;
if (pid == -1) /* XXX threadid == 1 ? */
return win32_internal_wait(aTHX_ status, timeout);
#ifdef USE_ITHREADS
else if (pid < 0) {
child = find_pseudo_pid(aTHX_ -pid);
if (child >= 0) {
HANDLE hThread = w32_pseudo_child_handles[child];
DWORD waitcode;
win32_msgwait(aTHX_ 1, &hThread, timeout, &waitcode);
if (waitcode == WAIT_TIMEOUT) {
return 0;
}
else if (waitcode == WAIT_OBJECT_0) {
if (GetExitCodeThread(hThread, &waitcode)) {
*status = (int)((waitcode & 0xff) << 8);
retval = (int)w32_pseudo_child_pids[child];
remove_dead_pseudo_process(child);
return -retval;
}
}
else
errno = ECHILD;
}
}
#endif
else {
HANDLE hProcess;
DWORD waitcode;
child = find_pid(aTHX_ pid);
if (child >= 0) {
hProcess = w32_child_handles[child];
win32_msgwait(aTHX_ 1, &hProcess, timeout, &waitcode);
if (waitcode == WAIT_TIMEOUT) {
return 0;
}
else if (waitcode == WAIT_OBJECT_0) {
if (GetExitCodeProcess(hProcess, &waitcode)) {
*status = (int)((waitcode & 0xff) << 8);
retval = (int)w32_child_pids[child];
remove_dead_process(child);
return retval;
}
}
else
errno = ECHILD;
}
else {
hProcess = OpenProcess(PROCESS_ALL_ACCESS, TRUE, pid);
if (hProcess) {
win32_msgwait(aTHX_ 1, &hProcess, timeout, &waitcode);
if (waitcode == WAIT_TIMEOUT) {
CloseHandle(hProcess);
return 0;
}
else if (waitcode == WAIT_OBJECT_0) {
if (GetExitCodeProcess(hProcess, &waitcode)) {
*status = (int)((waitcode & 0xff) << 8);
CloseHandle(hProcess);
return pid;
}
}
CloseHandle(hProcess);
}
else
errno = ECHILD;
}
}
return retval >= 0 ? pid : retval;
}
DllExport int
win32_wait(int *status)
{
dTHX;
return win32_internal_wait(aTHX_ status, INFINITE);
}
DllExport unsigned int
win32_sleep(unsigned int t)
{
dTHX;
/* Win32 times are in ms so *1000 in and /1000 out */
if (t > UINT_MAX / 1000) {
Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW),
"sleep(%lu) too large", t);
}
return win32_msgwait(aTHX_ 0, NULL, t * 1000, NULL) / 1000;
}
DllExport unsigned int
win32_alarm(unsigned int sec)
{
/*
* the 'obvious' implentation is SetTimer() with a callback
* which does whatever receiving SIGALRM would do
* we cannot use SIGALRM even via raise() as it is not
* one of the supported codes in <signal.h>
*/
dTHX;
if (w32_message_hwnd == INVALID_HANDLE_VALUE)
w32_message_hwnd = win32_create_message_window();
if (sec) {
if (w32_message_hwnd == NULL)
w32_timerid = SetTimer(NULL, w32_timerid, sec*1000, NULL);
else {
w32_timerid = 1;
SetTimer(w32_message_hwnd, w32_timerid, sec*1000, NULL);
}
}
else {
if (w32_timerid) {
KillTimer(w32_message_hwnd, w32_timerid);
w32_timerid = 0;
}
}
return 0;
}
extern char * des_fcrypt(const char *txt, const char *salt, char *cbuf);
DllExport char *
win32_crypt(const char *txt, const char *salt)
{
dTHX;
return des_fcrypt(txt, salt, w32_crypt_buffer);
}
/* simulate flock by locking a range on the file */
#define LK_LEN 0xffff0000
DllExport int
win32_flock(int fd, int oper)
{
OVERLAPPED o;
int i = -1;
HANDLE fh;
fh = (HANDLE)_get_osfhandle(fd);
if (fh == (HANDLE)-1) /* _get_osfhandle() already sets errno to EBADF */
return -1;
memset(&o, 0, sizeof(o));
switch(oper) {
case LOCK_SH: /* shared lock */
if (LockFileEx(fh, 0, 0, LK_LEN, 0, &o))
i = 0;
break;
case LOCK_EX: /* exclusive lock */
if (LockFileEx(fh, LOCKFILE_EXCLUSIVE_LOCK, 0, LK_LEN, 0, &o))
i = 0;
break;
case LOCK_SH|LOCK_NB: /* non-blocking shared lock */
if (LockFileEx(fh, LOCKFILE_FAIL_IMMEDIATELY, 0, LK_LEN, 0, &o))
i = 0;
break;
case LOCK_EX|LOCK_NB: /* non-blocking exclusive lock */
if (LockFileEx(fh, LOCKFILE_EXCLUSIVE_LOCK|LOCKFILE_FAIL_IMMEDIATELY,
0, LK_LEN, 0, &o))
i = 0;
break;
case LOCK_UN: /* unlock lock */
if (UnlockFileEx(fh, 0, LK_LEN, 0, &o))
i = 0;
break;
default: /* unknown */
errno = EINVAL;
return -1;
}
if (i == -1) {
if (GetLastError() == ERROR_LOCK_VIOLATION)
errno = WSAEWOULDBLOCK;
else
errno = EINVAL;
}
return i;
}
#undef LK_LEN
/*
* redirected io subsystem for all XS modules
*
*/
DllExport int *
win32_errno(void)
{
return (&errno);
}
DllExport char ***
win32_environ(void)
{
return (&(_environ));
}
/* the rest are the remapped stdio routines */
DllExport FILE *
win32_stderr(void)
{
return (stderr);
}
DllExport FILE *
win32_stdin(void)
{
return (stdin);
}
DllExport FILE *
win32_stdout(void)
{
return (stdout);
}
DllExport int
win32_ferror(FILE *fp)
{
return (ferror(fp));
}
DllExport int
win32_feof(FILE *fp)
{
return (feof(fp));
}
/*
* Since the errors returned by the socket error function
* WSAGetLastError() are not known by the library routine strerror
* we have to roll our own.
*/
DllExport char *
win32_strerror(int e)
{
#if !defined __MINGW32__ /* compiler intolerance */
extern int sys_nerr;
#endif
if (e < 0 || e > sys_nerr) {
dTHXa(NULL);
if (e < 0)
e = GetLastError();
aTHXa(PERL_GET_THX);
if (FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
|FORMAT_MESSAGE_IGNORE_INSERTS, NULL, e, 0,
w32_strerror_buffer, sizeof(w32_strerror_buffer),
NULL) == 0)
{
strcpy(w32_strerror_buffer, "Unknown Error");
}
return w32_strerror_buffer;
}
#undef strerror
return strerror(e);
#define strerror win32_strerror
}
DllExport void
win32_str_os_error(void *sv, DWORD dwErr)
{
DWORD dwLen;
char *sMsg;
dwLen = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER
|FORMAT_MESSAGE_IGNORE_INSERTS
|FORMAT_MESSAGE_FROM_SYSTEM, NULL,
dwErr, 0, (char *)&sMsg, 1, NULL);
/* strip trailing whitespace and period */
if (0 < dwLen) {
do {
--dwLen; /* dwLen doesn't include trailing null */
} while (0 < dwLen && isSPACE(sMsg[dwLen]));
if ('.' != sMsg[dwLen])
dwLen++;
sMsg[dwLen] = '\0';
}
if (0 == dwLen) {
sMsg = (char*)LocalAlloc(0, 64/**sizeof(TCHAR)*/);
if (sMsg)
dwLen = sprintf(sMsg,
"Unknown error #0x%lX (lookup 0x%lX)",
dwErr, GetLastError());
}
if (sMsg) {
dTHX;
sv_setpvn((SV*)sv, sMsg, dwLen);
LocalFree(sMsg);
}
}
DllExport int
win32_fprintf(FILE *fp, const char *format, ...)
{
va_list marker;
va_start(marker, format); /* Initialize variable arguments. */
return (vfprintf(fp, format, marker));
}
DllExport int
win32_printf(const char *format, ...)
{
va_list marker;
va_start(marker, format); /* Initialize variable arguments. */
return (vprintf(format, marker));
}
DllExport int
win32_vfprintf(FILE *fp, const char *format, va_list args)
{
return (vfprintf(fp, format, args));
}
DllExport int
win32_vprintf(const char *format, va_list args)
{
return (vprintf(format, args));
}
DllExport size_t
win32_fread(void *buf, size_t size, size_t count, FILE *fp)
{
return fread(buf, size, count, fp);
}
DllExport size_t
win32_fwrite(const void *buf, size_t size, size_t count, FILE *fp)
{
return fwrite(buf, size, count, fp);
}
#define MODE_SIZE 10
DllExport FILE *
win32_fopen(const char *filename, const char *mode)
{
dTHXa(NULL);
FILE *f;
if (!*filename)
return NULL;
if (stricmp(filename, "/dev/null")==0)
filename = "NUL";
aTHXa(PERL_GET_THX);
f = fopen(PerlDir_mapA(filename), mode);
/* avoid buffering headaches for child processes */
if (f && *mode == 'a')
win32_fseek(f, 0, SEEK_END);
return f;
}
DllExport FILE *
win32_fdopen(int handle, const char *mode)
{
FILE *f;
f = fdopen(handle, (char *) mode);
/* avoid buffering headaches for child processes */
if (f && *mode == 'a')
win32_fseek(f, 0, SEEK_END);
return f;
}
DllExport FILE *
win32_freopen(const char *path, const char *mode, FILE *stream)
{
dTHXa(NULL);
if (stricmp(path, "/dev/null")==0)
path = "NUL";
aTHXa(PERL_GET_THX);
return freopen(PerlDir_mapA(path), mode, stream);
}
DllExport int
win32_fclose(FILE *pf)
{
#ifdef WIN32_NO_SOCKETS
return fclose(pf);
#else
return my_fclose(pf); /* defined in win32sck.c */
#endif
}
DllExport int
win32_fputs(const char *s,FILE *pf)
{
return fputs(s, pf);
}
DllExport int
win32_fputc(int c,FILE *pf)
{
return fputc(c,pf);
}
DllExport int
win32_ungetc(int c,FILE *pf)
{
return ungetc(c,pf);
}
DllExport int
win32_getc(FILE *pf)
{
return getc(pf);
}
DllExport int
win32_fileno(FILE *pf)
{
return fileno(pf);
}
DllExport void
win32_clearerr(FILE *pf)
{
clearerr(pf);
return;
}
DllExport int
win32_fflush(FILE *pf)
{
return fflush(pf);
}
DllExport Off_t
win32_ftell(FILE *pf)
{
#if defined(WIN64) || defined(USE_LARGE_FILES)
fpos_t pos;
if (fgetpos(pf, &pos))
return -1;
return (Off_t)pos;
#else
return ftell(pf);
#endif
}
DllExport int
win32_fseek(FILE *pf, Off_t offset,int origin)
{
#if defined(WIN64) || defined(USE_LARGE_FILES)
fpos_t pos;
switch (origin) {
case SEEK_CUR:
if (fgetpos(pf, &pos))
return -1;
offset += pos;
break;
case SEEK_END:
fseek(pf, 0, SEEK_END);
pos = _telli64(fileno(pf));
offset += pos;
break;
case SEEK_SET:
break;
default:
errno = EINVAL;
return -1;
}
return fsetpos(pf, &offset);
#else
return fseek(pf, (long)offset, origin);
#endif
}
DllExport int
win32_fgetpos(FILE *pf,fpos_t *p)
{
return fgetpos(pf, p);
}
DllExport int
win32_fsetpos(FILE *pf,const fpos_t *p)
{
return fsetpos(pf, p);
}
DllExport void
win32_rewind(FILE *pf)
{
rewind(pf);
return;
}
DllExport int
win32_tmpfd(void)
{
char prefix[MAX_PATH+1];
char filename[MAX_PATH+1];
DWORD len = GetTempPath(MAX_PATH, prefix);
if (len && len < MAX_PATH) {
if (GetTempFileName(prefix, "plx", 0, filename)) {
HANDLE fh = CreateFile(filename,
DELETE | GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL
| FILE_FLAG_DELETE_ON_CLOSE,
NULL);
if (fh != INVALID_HANDLE_VALUE) {
int fd = win32_open_osfhandle((intptr_t)fh, 0);
if (fd >= 0) {
PERL_DEB(dTHX;)
DEBUG_p(PerlIO_printf(Perl_debug_log,
"Created tmpfile=%s\n",filename));
return fd;
}
}
}
}
return -1;
}
DllExport FILE*
win32_tmpfile(void)
{
int fd = win32_tmpfd();
if (fd >= 0)
return win32_fdopen(fd, "w+b");
return NULL;
}
DllExport void
win32_abort(void)
{
abort();
return;
}
DllExport int
win32_fstat(int fd, Stat_t *sbufptr)
{
#if defined(WIN64) || defined(USE_LARGE_FILES)
return _fstati64(fd, sbufptr);
#else
return fstat(fd, sbufptr);
#endif
}
DllExport int
win32_pipe(int *pfd, unsigned int size, int mode)
{
return _pipe(pfd, size, mode);
}
DllExport PerlIO*
win32_popenlist(const char *mode, IV narg, SV **args)
{
Perl_croak_nocontext("List form of pipe open not implemented");
return NULL;
}
/*
* a popen() clone that respects PERL5SHELL
*
* changed to return PerlIO* rather than FILE * by BKS, 11-11-2000
*/
DllExport PerlIO*
win32_popen(const char *command, const char *mode)
{
#ifdef USE_RTL_POPEN
return _popen(command, mode);
#else
int p[2];
int parent, child;
int stdfd, oldfd;
int ourmode;
int childpid;
DWORD nhandle;
HANDLE old_h;
int lock_held = 0;
/* establish which ends read and write */
if (strchr(mode,'w')) {
stdfd = 0; /* stdin */
parent = 1;
child = 0;
nhandle = STD_INPUT_HANDLE;
}
else if (strchr(mode,'r')) {
stdfd = 1; /* stdout */
parent = 0;
child = 1;
nhandle = STD_OUTPUT_HANDLE;
}
else
return NULL;
/* set the correct mode */
if (strchr(mode,'b'))
ourmode = O_BINARY;
else if (strchr(mode,'t'))
ourmode = O_TEXT;
else
ourmode = _fmode & (O_TEXT | O_BINARY);
/* the child doesn't inherit handles */
ourmode |= O_NOINHERIT;
if (win32_pipe(p, 512, ourmode) == -1)
return NULL;
/* save the old std handle (this needs to happen before the
* dup2(), since that might call SetStdHandle() too) */
OP_REFCNT_LOCK;
lock_held = 1;
old_h = GetStdHandle(nhandle);
/* save current stdfd */
if ((oldfd = win32_dup(stdfd)) == -1)
goto cleanup;
/* make stdfd go to child end of pipe (implicitly closes stdfd) */
/* stdfd will be inherited by the child */
if (win32_dup2(p[child], stdfd) == -1)
goto cleanup;
/* close the child end in parent */
win32_close(p[child]);
/* set the new std handle (in case dup2() above didn't) */
SetStdHandle(nhandle, (HANDLE)_get_osfhandle(stdfd));
/* start the child */
{
dTHX;
if ((childpid = do_spawn_nowait((char*)command)) == -1)
goto cleanup;
/* revert stdfd to whatever it was before */
if (win32_dup2(oldfd, stdfd) == -1)
goto cleanup;
/* close saved handle */
win32_close(oldfd);
/* restore the old std handle (this needs to happen after the
* dup2(), since that might call SetStdHandle() too */
if (lock_held) {
SetStdHandle(nhandle, old_h);
OP_REFCNT_UNLOCK;
lock_held = 0;
}
sv_setiv(*av_fetch(w32_fdpid, p[parent], TRUE), childpid);
/* set process id so that it can be returned by perl's open() */
PL_forkprocess = childpid;
}
/* we have an fd, return a file stream */
return (PerlIO_fdopen(p[parent], (char *)mode));
cleanup:
/* we don't need to check for errors here */
win32_close(p[0]);
win32_close(p[1]);
if (oldfd != -1) {
win32_dup2(oldfd, stdfd);
win32_close(oldfd);
}
if (lock_held) {
SetStdHandle(nhandle, old_h);
OP_REFCNT_UNLOCK;
lock_held = 0;
}
return (NULL);
#endif /* USE_RTL_POPEN */
}
/*
* pclose() clone
*/
DllExport int
win32_pclose(PerlIO *pf)
{
#ifdef USE_RTL_POPEN
return _pclose(pf);
#else
dTHX;
int childpid, status;
SV *sv;
sv = *av_fetch(w32_fdpid, PerlIO_fileno(pf), TRUE);
if (SvIOK(sv))
childpid = SvIVX(sv);
else
childpid = 0;
if (!childpid) {
errno = EBADF;
return -1;
}
#ifdef USE_PERLIO
PerlIO_close(pf);
#else
fclose(pf);
#endif
SvIVX(sv) = 0;
if (win32_waitpid(childpid, &status, 0) == -1)
return -1;
return status;
#endif /* USE_RTL_POPEN */
}
DllExport int
win32_link(const char *oldname, const char *newname)
{
dTHXa(NULL);
WCHAR wOldName[MAX_PATH+1];
WCHAR wNewName[MAX_PATH+1];
if (MultiByteToWideChar(CP_ACP, 0, oldname, -1, wOldName, MAX_PATH+1) &&
MultiByteToWideChar(CP_ACP, 0, newname, -1, wNewName, MAX_PATH+1) &&
((aTHXa(PERL_GET_THX)), wcscpy(wOldName, PerlDir_mapW(wOldName)),
CreateHardLinkW(PerlDir_mapW(wNewName), wOldName, NULL)))
{
return 0;
}
/* This isn't perfect, eg. Win32 returns ERROR_ACCESS_DENIED for
both permissions errors and if the source is a directory, while
POSIX wants EACCES and EPERM respectively.
Determined by experimentation on Windows 7 x64 SP1, since MS
don't document what error codes are returned.
*/
switch (GetLastError()) {
case ERROR_BAD_NET_NAME:
case ERROR_BAD_NETPATH:
case ERROR_BAD_PATHNAME:
case ERROR_FILE_NOT_FOUND:
case ERROR_FILENAME_EXCED_RANGE:
case ERROR_INVALID_DRIVE:
case ERROR_PATH_NOT_FOUND:
errno = ENOENT;
break;
case ERROR_ALREADY_EXISTS:
errno = EEXIST;
break;
case ERROR_ACCESS_DENIED:
errno = EACCES;
break;
case ERROR_NOT_SAME_DEVICE:
errno = EXDEV;
break;
default:
/* ERROR_INVALID_FUNCTION - eg. on a FAT volume */
errno = EINVAL;
break;
}
return -1;
}
DllExport int
win32_rename(const char *oname, const char *newname)
{
char szOldName[MAX_PATH+1];
BOOL bResult;
DWORD dwFlags = MOVEFILE_COPY_ALLOWED;
dTHX;
if (stricmp(newname, oname))
dwFlags |= MOVEFILE_REPLACE_EXISTING;
strcpy(szOldName, PerlDir_mapA(oname));
bResult = MoveFileExA(szOldName,PerlDir_mapA(newname), dwFlags);
if (!bResult) {
DWORD err = GetLastError();
switch (err) {
case ERROR_BAD_NET_NAME:
case ERROR_BAD_NETPATH:
case ERROR_BAD_PATHNAME:
case ERROR_FILE_NOT_FOUND:
case ERROR_FILENAME_EXCED_RANGE:
case ERROR_INVALID_DRIVE:
case ERROR_NO_MORE_FILES:
case ERROR_PATH_NOT_FOUND:
errno = ENOENT;
break;
default:
errno = EACCES;
break;
}
return -1;
}
return 0;
}
DllExport int
win32_setmode(int fd, int mode)
{
return setmode(fd, mode);
}
DllExport int
win32_chsize(int fd, Off_t size)
{
#if defined(WIN64) || defined(USE_LARGE_FILES)
int retval = 0;
Off_t cur, end, extend;
cur = win32_tell(fd);
if (cur < 0)
return -1;
end = win32_lseek(fd, 0, SEEK_END);
if (end < 0)
return -1;
extend = size - end;
if (extend == 0) {
/* do nothing */
}
else if (extend > 0) {
/* must grow the file, padding with nulls */
char b[4096];
int oldmode = win32_setmode(fd, O_BINARY);
size_t count;
memset(b, '\0', sizeof(b));
do {
count = extend >= sizeof(b) ? sizeof(b) : (size_t)extend;
count = win32_write(fd, b, count);
if ((int)count < 0) {
retval = -1;
break;
}
} while ((extend -= count) > 0);
win32_setmode(fd, oldmode);
}
else {
/* shrink the file */
win32_lseek(fd, size, SEEK_SET);
if (!SetEndOfFile((HANDLE)_get_osfhandle(fd))) {
errno = EACCES;
retval = -1;
}
}
finish:
win32_lseek(fd, cur, SEEK_SET);
return retval;
#else
return chsize(fd, (long)size);
#endif
}
DllExport Off_t
win32_lseek(int fd, Off_t offset, int origin)
{
#if defined(WIN64) || defined(USE_LARGE_FILES)
return _lseeki64(fd, offset, origin);
#else
return lseek(fd, (long)offset, origin);
#endif
}
DllExport Off_t
win32_tell(int fd)
{
#if defined(WIN64) || defined(USE_LARGE_FILES)
return _telli64(fd);
#else
return tell(fd);
#endif
}
DllExport int
win32_open(const char *path, int flag, ...)
{
dTHXa(NULL);
va_list ap;
int pmode;
va_start(ap, flag);
pmode = va_arg(ap, int);
va_end(ap);
if (stricmp(path, "/dev/null")==0)
path = "NUL";
aTHXa(PERL_GET_THX);
return open(PerlDir_mapA(path), flag, pmode);
}
/* close() that understands socket */
extern int my_close(int); /* in win32sck.c */
DllExport int
win32_close(int fd)
{
#ifdef WIN32_NO_SOCKETS
return close(fd);
#else
return my_close(fd);
#endif
}
DllExport int
win32_eof(int fd)
{
return eof(fd);
}
DllExport int
win32_isatty(int fd)
{
/* The Microsoft isatty() function returns true for *all*
* character mode devices, including "nul". Our implementation
* should only return true if the handle has a console buffer.
*/
DWORD mode;
HANDLE fh = (HANDLE)_get_osfhandle(fd);
if (fh == (HANDLE)-1) {
/* errno is already set to EBADF */
return 0;
}
if (GetConsoleMode(fh, &mode))
return 1;
errno = ENOTTY;
return 0;
}
DllExport int
win32_dup(int fd)
{
return dup(fd);
}
DllExport int
win32_dup2(int fd1,int fd2)
{
return dup2(fd1,fd2);
}
DllExport int
win32_read(int fd, void *buf, unsigned int cnt)
{
return read(fd, buf, cnt);
}
DllExport int
win32_write(int fd, const void *buf, unsigned int cnt)
{
return write(fd, buf, cnt);
}
DllExport int
win32_mkdir(const char *dir, int mode)
{
dTHX;
return mkdir(PerlDir_mapA(dir)); /* just ignore mode */
}
DllExport int
win32_rmdir(const char *dir)
{
dTHX;
return rmdir(PerlDir_mapA(dir));
}
DllExport int
win32_chdir(const char *dir)
{
if (!dir) {
errno = ENOENT;
return -1;
}
return chdir(dir);
}
DllExport int
win32_access(const char *path, int mode)
{
dTHX;
return access(PerlDir_mapA(path), mode);
}
DllExport int
win32_chmod(const char *path, int mode)
{
dTHX;
return chmod(PerlDir_mapA(path), mode);
}
static char *
create_command_line(char *cname, STRLEN clen, const char * const *args)
{
PERL_DEB(dTHX;)
int index, argc;
char *cmd, *ptr;
const char *arg;
STRLEN len = 0;
bool bat_file = FALSE;
bool cmd_shell = FALSE;
bool dumb_shell = FALSE;
bool extra_quotes = FALSE;
bool quote_next = FALSE;
if (!cname)
cname = (char*)args[0];
/* The NT cmd.exe shell has the following peculiarity that needs to be
* worked around. It strips a leading and trailing dquote when any
* of the following is true:
* 1. the /S switch was used
* 2. there are more than two dquotes
* 3. there is a special character from this set: &<>()@^|
* 4. no whitespace characters within the two dquotes
* 5. string between two dquotes isn't an executable file
* To work around this, we always add a leading and trailing dquote
* to the string, if the first argument is either "cmd.exe" or "cmd",
* and there were at least two or more arguments passed to cmd.exe
* (not including switches).
* XXX the above rules (from "cmd /?") don't seem to be applied
* always, making for the convolutions below :-(
*/
if (cname) {
if (!clen)
clen = strlen(cname);
if (clen > 4
&& (stricmp(&cname[clen-4], ".bat") == 0
|| (stricmp(&cname[clen-4], ".cmd") == 0)))
{
bat_file = TRUE;
len += 3;
}
else {
char *exe = strrchr(cname, '/');
char *exe2 = strrchr(cname, '\\');
if (exe2 > exe)
exe = exe2;
if (exe)
++exe;
else
exe = cname;
if (stricmp(exe, "cmd.exe") == 0 || stricmp(exe, "cmd") == 0) {
cmd_shell = TRUE;
len += 3;
}
else if (stricmp(exe, "command.com") == 0
|| stricmp(exe, "command") == 0)
{
dumb_shell = TRUE;
}
}
}
DEBUG_p(PerlIO_printf(Perl_debug_log, "Args "));
for (index = 0; (arg = (char*)args[index]) != NULL; ++index) {
STRLEN curlen = strlen(arg);
if (!(arg[0] == '"' && arg[curlen-1] == '"'))
len += 2; /* assume quoting needed (worst case) */
len += curlen + 1;
DEBUG_p(PerlIO_printf(Perl_debug_log, "[%s]",arg));
}
DEBUG_p(PerlIO_printf(Perl_debug_log, "\n"));
argc = index;
Newx(cmd, len, char);
ptr = cmd;
if (bat_file) {
*ptr++ = '"';
extra_quotes = TRUE;
}
for (index = 0; (arg = (char*)args[index]) != NULL; ++index) {
bool do_quote = 0;
STRLEN curlen = strlen(arg);
/* we want to protect empty arguments and ones with spaces with
* dquotes, but only if they aren't already there */
if (!dumb_shell) {
if (!curlen) {
do_quote = 1;
}
else if (quote_next) {
/* see if it really is multiple arguments pretending to
* be one and force a set of quotes around it */
if (*find_next_space(arg))
do_quote = 1;
}
else if (!(arg[0] == '"' && curlen > 1 && arg[curlen-1] == '"')) {
STRLEN i = 0;
while (i < curlen) {
if (isSPACE(arg[i])) {
do_quote = 1;
}
else if (arg[i] == '"') {
do_quote = 0;
break;
}
i++;
}
}
}
if (do_quote)
*ptr++ = '"';
strcpy(ptr, arg);
ptr += curlen;
if (do_quote)
*ptr++ = '"';
if (args[index+1])
*ptr++ = ' ';
if (!extra_quotes
&& cmd_shell
&& curlen >= 2
&& *arg == '/' /* see if arg is "/c", "/x/c", "/x/d/c" etc. */
&& stricmp(arg+curlen-2, "/c") == 0)
{
/* is there a next argument? */
if (args[index+1]) {
/* are there two or more next arguments? */
if (args[index+2]) {
*ptr++ = '"';
extra_quotes = TRUE;
}
else {
/* single argument, force quoting if it has spaces */
quote_next = TRUE;
}
}
}
}
if (extra_quotes)
*ptr++ = '"';
*ptr = '\0';
return cmd;
}
static char *
qualified_path(const char *cmd)
{
char *pathstr;
char *fullcmd, *curfullcmd;
STRLEN cmdlen = 0;
int has_slash = 0;
if (!cmd)
return NULL;
fullcmd = (char*)cmd;
while (*fullcmd) {
if (*fullcmd == '/' || *fullcmd == '\\')
has_slash++;
fullcmd++;
cmdlen++;
}
/* look in PATH */
{
dTHX;
pathstr = PerlEnv_getenv("PATH");
}
/* worst case: PATH is a single directory; we need additional space
* to append "/", ".exe" and trailing "\0" */
Newx(fullcmd, (pathstr ? strlen(pathstr) : 0) + cmdlen + 6, char);
curfullcmd = fullcmd;
while (1) {
DWORD res;
/* start by appending the name to the current prefix */
strcpy(curfullcmd, cmd);
curfullcmd += cmdlen;
/* if it doesn't end with '.', or has no extension, try adding
* a trailing .exe first */
if (cmd[cmdlen-1] != '.'
&& (cmdlen < 4 || cmd[cmdlen-4] != '.'))
{
strcpy(curfullcmd, ".exe");
res = GetFileAttributes(fullcmd);
if (res != 0xFFFFFFFF && !(res & FILE_ATTRIBUTE_DIRECTORY))
return fullcmd;
*curfullcmd = '\0';
}
/* that failed, try the bare name */
res = GetFileAttributes(fullcmd);
if (res != 0xFFFFFFFF && !(res & FILE_ATTRIBUTE_DIRECTORY))
return fullcmd;
/* quit if no other path exists, or if cmd already has path */
if (!pathstr || !*pathstr || has_slash)
break;
/* skip leading semis */
while (*pathstr == ';')
pathstr++;
/* build a new prefix from scratch */
curfullcmd = fullcmd;
while (*pathstr && *pathstr != ';') {
if (*pathstr == '"') { /* foo;"baz;etc";bar */
pathstr++; /* skip initial '"' */
while (*pathstr && *pathstr != '"') {
*curfullcmd++ = *pathstr++;
}
if (*pathstr)
pathstr++; /* skip trailing '"' */
}
else {
*curfullcmd++ = *pathstr++;
}
}
if (*pathstr)
pathstr++; /* skip trailing semi */
if (curfullcmd > fullcmd /* append a dir separator */
&& curfullcmd[-1] != '/' && curfullcmd[-1] != '\\')
{
*curfullcmd++ = '\\';
}
}
Safefree(fullcmd);
return NULL;
}
/* The following are just place holders.
* Some hosts may provide and environment that the OS is
* not tracking, therefore, these host must provide that
* environment and the current directory to CreateProcess
*/
DllExport void*
win32_get_childenv(void)
{
return NULL;
}
DllExport void
win32_free_childenv(void* d)
{
}
DllExport void
win32_clearenv(void)
{
char *envv = GetEnvironmentStrings();
char *cur = envv;
STRLEN len;
while (*cur) {
char *end = strchr(cur,'=');
if (end && end != cur) {
*end = '\0';
SetEnvironmentVariable(cur, NULL);
*end = '=';
cur = end + strlen(end+1)+2;
}
else if ((len = strlen(cur)))
cur += len+1;
}
FreeEnvironmentStrings(envv);
}
DllExport char*
win32_get_childdir(void)
{
char* ptr;
char szfilename[MAX_PATH+1];
GetCurrentDirectoryA(MAX_PATH+1, szfilename);
Newx(ptr, strlen(szfilename)+1, char);
strcpy(ptr, szfilename);
return ptr;
}
DllExport void
win32_free_childdir(char* d)
{
Safefree(d);
}
/* XXX this needs to be made more compatible with the spawnvp()
* provided by the various RTLs. In particular, searching for
* *.{com,bat,cmd} files (as done by the RTLs) is unimplemented.
* This doesn't significantly affect perl itself, because we
* always invoke things using PERL5SHELL if a direct attempt to
* spawn the executable fails.
*
* XXX splitting and rejoining the commandline between do_aspawn()
* and win32_spawnvp() could also be avoided.
*/
DllExport int
win32_spawnvp(int mode, const char *cmdname, const char *const *argv)
{
#ifdef USE_RTL_SPAWNVP
return spawnvp(mode, cmdname, (char * const *)argv);
#else
dTHXa(NULL);
int ret;
void* env;
char* dir;
child_IO_table tbl;
STARTUPINFO StartupInfo;
PROCESS_INFORMATION ProcessInformation;
DWORD create = 0;
char *cmd;
char *fullcmd = NULL;
char *cname = (char *)cmdname;
STRLEN clen = 0;
if (cname) {
clen = strlen(cname);
/* if command name contains dquotes, must remove them */
if (strchr(cname, '"')) {
cmd = cname;
Newx(cname,clen+1,char);
clen = 0;
while (*cmd) {
if (*cmd != '"') {
cname[clen] = *cmd;
++clen;
}
++cmd;
}
cname[clen] = '\0';
}
}
cmd = create_command_line(cname, clen, argv);
aTHXa(PERL_GET_THX);
env = PerlEnv_get_childenv();
dir = PerlEnv_get_childdir();
switch(mode) {
case P_NOWAIT: /* asynch + remember result */
if (w32_num_children >= MAXIMUM_WAIT_OBJECTS) {
errno = EAGAIN;
ret = -1;
goto RETVAL;
}
/* Create a new process group so we can use GenerateConsoleCtrlEvent()
* in win32_kill()
*/
create |= CREATE_NEW_PROCESS_GROUP;
/* FALL THROUGH */
case P_WAIT: /* synchronous execution */
break;
default: /* invalid mode */
errno = EINVAL;
ret = -1;
goto RETVAL;
}
memset(&StartupInfo,0,sizeof(StartupInfo));
StartupInfo.cb = sizeof(StartupInfo);
memset(&tbl,0,sizeof(tbl));
PerlEnv_get_child_IO(&tbl);
StartupInfo.dwFlags = tbl.dwFlags;
StartupInfo.dwX = tbl.dwX;
StartupInfo.dwY = tbl.dwY;
StartupInfo.dwXSize = tbl.dwXSize;
StartupInfo.dwYSize = tbl.dwYSize;
StartupInfo.dwXCountChars = tbl.dwXCountChars;
StartupInfo.dwYCountChars = tbl.dwYCountChars;
StartupInfo.dwFillAttribute = tbl.dwFillAttribute;
StartupInfo.wShowWindow = tbl.wShowWindow;
StartupInfo.hStdInput = tbl.childStdIn;
StartupInfo.hStdOutput = tbl.childStdOut;
StartupInfo.hStdError = tbl.childStdErr;
if (StartupInfo.hStdInput == INVALID_HANDLE_VALUE &&
StartupInfo.hStdOutput == INVALID_HANDLE_VALUE &&
StartupInfo.hStdError == INVALID_HANDLE_VALUE)
{
create |= CREATE_NEW_CONSOLE;
}
else {
StartupInfo.dwFlags |= STARTF_USESTDHANDLES;
}
if (w32_use_showwindow) {
StartupInfo.dwFlags |= STARTF_USESHOWWINDOW;
StartupInfo.wShowWindow = w32_showwindow;
}
DEBUG_p(PerlIO_printf(Perl_debug_log, "Spawning [%s] with [%s]\n",
cname,cmd));
RETRY:
if (!CreateProcess(cname, /* search PATH to find executable */
cmd, /* executable, and its arguments */
NULL, /* process attributes */
NULL, /* thread attributes */
TRUE, /* inherit handles */
create, /* creation flags */
(LPVOID)env, /* inherit environment */
dir, /* inherit cwd */
&StartupInfo,
&ProcessInformation))
{
/* initial NULL argument to CreateProcess() does a PATH
* search, but it always first looks in the directory
* where the current process was started, which behavior
* is undesirable for backward compatibility. So we
* jump through our own hoops by picking out the path
* we really want it to use. */
if (!fullcmd) {
fullcmd = qualified_path(cname);
if (fullcmd) {
if (cname != cmdname)
Safefree(cname);
cname = fullcmd;
DEBUG_p(PerlIO_printf(Perl_debug_log,
"Retrying [%s] with same args\n",
cname));
goto RETRY;
}
}
errno = ENOENT;
ret = -1;
goto RETVAL;
}
if (mode == P_NOWAIT) {
/* asynchronous spawn -- store handle, return PID */
ret = (int)ProcessInformation.dwProcessId;
w32_child_handles[w32_num_children] = ProcessInformation.hProcess;
w32_child_pids[w32_num_children] = (DWORD)ret;
++w32_num_children;
}
else {
DWORD status;
win32_msgwait(aTHX_ 1, &ProcessInformation.hProcess, INFINITE, NULL);
/* FIXME: if msgwait returned due to message perhaps forward the
"signal" to the process
*/
GetExitCodeProcess(ProcessInformation.hProcess, &status);
ret = (int)status;
CloseHandle(ProcessInformation.hProcess);
}
CloseHandle(ProcessInformation.hThread);
RETVAL:
PerlEnv_free_childenv(env);
PerlEnv_free_childdir(dir);
Safefree(cmd);
if (cname != cmdname)
Safefree(cname);
return ret;
#endif
}
DllExport int
win32_execv(const char *cmdname, const char *const *argv)
{
#ifdef USE_ITHREADS
dTHX;
/* if this is a pseudo-forked child, we just want to spawn
* the new program, and return */
if (w32_pseudo_id)
return spawnv(P_WAIT, cmdname, argv);
#endif
return execv(cmdname, argv);
}
DllExport int
win32_execvp(const char *cmdname, const char *const *argv)
{
#ifdef USE_ITHREADS
dTHX;
/* if this is a pseudo-forked child, we just want to spawn
* the new program, and return */
if (w32_pseudo_id) {
int status = win32_spawnvp(P_WAIT, cmdname, (const char *const *)argv);
if (status != -1) {
my_exit(status);
return 0;
}
else
return status;
}
#endif
return execvp(cmdname, argv);
}
DllExport void
win32_perror(const char *str)
{
perror(str);
}
DllExport void
win32_setbuf(FILE *pf, char *buf)
{
setbuf(pf, buf);
}
DllExport int
win32_setvbuf(FILE *pf, char *buf, int type, size_t size)
{
return setvbuf(pf, buf, type, size);
}
DllExport int
win32_flushall(void)
{
return flushall();
}
DllExport int
win32_fcloseall(void)
{
return fcloseall();
}
DllExport char*
win32_fgets(char *s, int n, FILE *pf)
{
return fgets(s, n, pf);
}
DllExport char*
win32_gets(char *s)
{
return gets(s);
}
DllExport int
win32_fgetc(FILE *pf)
{
return fgetc(pf);
}
DllExport int
win32_putc(int c, FILE *pf)
{
return putc(c,pf);
}
DllExport int
win32_puts(const char *s)
{
return puts(s);
}
DllExport int
win32_getchar(void)
{
return getchar();
}
DllExport int
win32_putchar(int c)
{
return putchar(c);
}
#ifdef MYMALLOC
#ifndef USE_PERL_SBRK
static char *committed = NULL; /* XXX threadead */
static char *base = NULL; /* XXX threadead */
static char *reserved = NULL; /* XXX threadead */
static char *brk = NULL; /* XXX threadead */
static DWORD pagesize = 0; /* XXX threadead */
void *
sbrk(ptrdiff_t need)
{
void *result;
if (!pagesize)
{SYSTEM_INFO info;
GetSystemInfo(&info);
/* Pretend page size is larger so we don't perpetually
* call the OS to commit just one page ...
*/
pagesize = info.dwPageSize << 3;
}
if (brk+need >= reserved)
{
DWORD size = brk+need-reserved;
char *addr;
char *prev_committed = NULL;
if (committed && reserved && committed < reserved)
{
/* Commit last of previous chunk cannot span allocations */
addr = (char *) VirtualAlloc(committed,reserved-committed,MEM_COMMIT,PAGE_READWRITE);
if (addr)
{
/* Remember where we committed from in case we want to decommit later */
prev_committed = committed;
committed = reserved;
}
}
/* Reserve some (more) space
* Contiguous blocks give us greater efficiency, so reserve big blocks -
* this is only address space not memory...
* Note this is a little sneaky, 1st call passes NULL as reserved
* so lets system choose where we start, subsequent calls pass
* the old end address so ask for a contiguous block
*/
sbrk_reserve:
if (size < 64*1024*1024)
size = 64*1024*1024;
size = ((size + pagesize - 1) / pagesize) * pagesize;
addr = (char *) VirtualAlloc(reserved,size,MEM_RESERVE,PAGE_NOACCESS);
if (addr)
{
reserved = addr+size;
if (!base)
base = addr;
if (!committed)
committed = base;
if (!brk)
brk = committed;
}
else if (reserved)
{
/* The existing block could not be extended far enough, so decommit
* anything that was just committed above and start anew */
if (prev_committed)
{
if (!VirtualFree(prev_committed,reserved-prev_committed,MEM_DECOMMIT))
return (void *) -1;
}
reserved = base = committed = brk = NULL;
size = need;
goto sbrk_reserve;
}
else
{
return (void *) -1;
}
}
result = brk;
brk += need;
if (brk > committed)
{
DWORD size = ((brk-committed + pagesize -1)/pagesize) * pagesize;
char *addr;
if (committed+size > reserved)
size = reserved-committed;
addr = (char *) VirtualAlloc(committed,size,MEM_COMMIT,PAGE_READWRITE);
if (addr)
committed += size;
else
return (void *) -1;
}
return result;
}
#endif
#endif
DllExport void*
win32_malloc(size_t size)
{
return malloc(size);
}
DllExport void*
win32_calloc(size_t numitems, size_t size)
{
return calloc(numitems,size);
}
DllExport void*
win32_realloc(void *block, size_t size)
{
return realloc(block,size);
}
DllExport void
win32_free(void *block)
{
free(block);
}
DllExport int
win32_open_osfhandle(intptr_t handle, int flags)
{
return _open_osfhandle(handle, flags);
}
DllExport intptr_t
win32_get_osfhandle(int fd)
{
return (intptr_t)_get_osfhandle(fd);
}
DllExport FILE *
win32_fdupopen(FILE *pf)
{
FILE* pfdup;
fpos_t pos;
char mode[3];
int fileno = win32_dup(win32_fileno(pf));
/* open the file in the same mode */
if((pf)->_flag & _IOREAD) {
mode[0] = 'r';
mode[1] = 0;
}
else if((pf)->_flag & _IOWRT) {
mode[0] = 'a';
mode[1] = 0;
}
else if((pf)->_flag & _IORW) {
mode[0] = 'r';
mode[1] = '+';
mode[2] = 0;
}
/* it appears that the binmode is attached to the
* file descriptor so binmode files will be handled
* correctly
*/
pfdup = win32_fdopen(fileno, mode);
/* move the file pointer to the same position */
if (!fgetpos(pf, &pos)) {
fsetpos(pfdup, &pos);
}
return pfdup;
}
DllExport void*
win32_dynaload(const char* filename)
{
dTHXa(NULL);
char buf[MAX_PATH+1];
const char *first;
/* LoadLibrary() doesn't recognize forward slashes correctly,
* so turn 'em back. */
first = strchr(filename, '/');
if (first) {
STRLEN len = strlen(filename);
if (len <= MAX_PATH) {
strcpy(buf, filename);
filename = &buf[first - filename];
while (*filename) {
if (*filename == '/')
*(char*)filename = '\\';
++filename;
}
filename = buf;
}
}
aTHXa(PERL_GET_THX);
return LoadLibraryExA(PerlDir_mapA(filename), NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
}
XS(w32_SetChildShowWindow)
{
dXSARGS;
BOOL use_showwindow = w32_use_showwindow;
/* use "unsigned short" because Perl has redefined "WORD" */
unsigned short showwindow = w32_showwindow;
if (items > 1)
Perl_croak(aTHX_ "usage: Win32::SetChildShowWindow($showwindow)");
if (items == 0 || !SvOK(ST(0)))
w32_use_showwindow = FALSE;
else {
w32_use_showwindow = TRUE;
w32_showwindow = (unsigned short)SvIV(ST(0));
}
EXTEND(SP, 1);
if (use_showwindow)
ST(0) = sv_2mortal(newSViv(showwindow));
else
ST(0) = &PL_sv_undef;
XSRETURN(1);
}
void
Perl_init_os_extras(void)
{
dTHXa(NULL);
char *file = __FILE__;
/* Initialize Win32CORE if it has been statically linked. */
#ifndef PERL_IS_MINIPERL
void (*pfn_init)(pTHX);
pfn_init = (void (*)(pTHX))GetProcAddress((HMODULE)w32_perldll_handle, "init_Win32CORE");
aTHXa(PERL_GET_THX);
if (pfn_init)
pfn_init(aTHX);
#else
aTHXa(PERL_GET_THX);
#endif
newXS("Win32::SetChildShowWindow", w32_SetChildShowWindow, file);
}
void *
win32_signal_context(void)
{
dTHX;
#ifdef MULTIPLICITY
if (!my_perl) {
my_perl = PL_curinterp;
PERL_SET_THX(my_perl);
}
return my_perl;
#else
return PL_curinterp;
#endif
}
BOOL WINAPI
win32_ctrlhandler(DWORD dwCtrlType)
{
#ifdef MULTIPLICITY
dTHXa(PERL_GET_SIG_CONTEXT);
if (!my_perl)
return FALSE;
#endif
switch(dwCtrlType) {
case CTRL_CLOSE_EVENT:
/* A signal that the system sends to all processes attached to a console when
the user closes the console (either by choosing the Close command from the
console window's System menu, or by choosing the End Task command from the
Task List
*/
if (do_raise(aTHX_ 1)) /* SIGHUP */
sig_terminate(aTHX_ 1);
return TRUE;
case CTRL_C_EVENT:
/* A CTRL+c signal was received */
if (do_raise(aTHX_ SIGINT))
sig_terminate(aTHX_ SIGINT);
return TRUE;
case CTRL_BREAK_EVENT:
/* A CTRL+BREAK signal was received */
if (do_raise(aTHX_ SIGBREAK))
sig_terminate(aTHX_ SIGBREAK);
return TRUE;
case CTRL_LOGOFF_EVENT:
/* A signal that the system sends to all console processes when a user is logging
off. This signal does not indicate which user is logging off, so no
assumptions can be made.
*/
break;
case CTRL_SHUTDOWN_EVENT:
/* A signal that the system sends to all console processes when the system is
shutting down.
*/
if (do_raise(aTHX_ SIGTERM))
sig_terminate(aTHX_ SIGTERM);
return TRUE;
default:
break;
}
return FALSE;
}
#ifdef SET_INVALID_PARAMETER_HANDLER
# include <crtdbg.h>
#endif
static void
ansify_path(void)
{
size_t len;
char *ansi_path;
WCHAR *wide_path;
WCHAR *wide_dir;
/* fetch Unicode version of PATH */
len = 2000;
wide_path = (WCHAR*)win32_malloc(len*sizeof(WCHAR));
while (wide_path) {
size_t newlen = GetEnvironmentVariableW(L"PATH", wide_path, len);
if (newlen == 0) {
win32_free(wide_path);
return;
}
if (newlen < len)
break;
len = newlen;
wide_path = (WCHAR*)win32_realloc(wide_path, len*sizeof(WCHAR));
}
if (!wide_path)
return;
/* convert to ANSI pathnames */
wide_dir = wide_path;
ansi_path = NULL;
while (wide_dir) {
WCHAR *sep = wcschr(wide_dir, ';');
char *ansi_dir;
size_t ansi_len;
size_t wide_len;
if (sep)
*sep++ = '\0';
/* remove quotes around pathname */
if (*wide_dir == '"')
++wide_dir;
wide_len = wcslen(wide_dir);
if (wide_len && wide_dir[wide_len-1] == '"')
wide_dir[wide_len-1] = '\0';
/* append ansi_dir to ansi_path */
ansi_dir = win32_ansipath(wide_dir);
ansi_len = strlen(ansi_dir);
if (ansi_path) {
size_t newlen = len + 1 + ansi_len;
ansi_path = (char*)win32_realloc(ansi_path, newlen+1);
if (!ansi_path)
break;
ansi_path[len] = ';';
memcpy(ansi_path+len+1, ansi_dir, ansi_len+1);
len = newlen;
}
else {
len = ansi_len;
ansi_path = (char*)win32_malloc(5+len+1);
if (!ansi_path)
break;
memcpy(ansi_path, "PATH=", 5);
memcpy(ansi_path+5, ansi_dir, len+1);
len += 5;
}
win32_free(ansi_dir);
wide_dir = sep;
}
if (ansi_path) {
/* Update C RTL environ array. This will only have full effect if
* perl_parse() is later called with `environ` as the `env` argument.
* Otherwise S_init_postdump_symbols() will overwrite PATH again.
*
* We do have to ansify() the PATH before Perl has been fully
* initialized because S_find_script() uses the PATH when perl
* is being invoked with the -S option. This happens before %ENV
* is initialized in S_init_postdump_symbols().
*
* XXX Is this a bug? Should S_find_script() use the environment
* XXX passed in the `env` arg to parse_perl()?
*/
putenv(ansi_path);
/* Keep system environment in sync because S_init_postdump_symbols()
* will not call mg_set() if it initializes %ENV from `environ`.
*/
SetEnvironmentVariableA("PATH", ansi_path+5);
/* We are intentionally leaking the ansi_path string here because
* the some runtime libraries puts it directly into the environ
* array. The Microsoft runtime library seems to make a copy,
* but will leak the copy should it be replaced again later.
* Since this code is only called once during PERL_SYS_INIT this
* shouldn't really matter.
*/
}
win32_free(wide_path);
}
void
Perl_win32_init(int *argcp, char ***argvp)
{
#ifdef SET_INVALID_PARAMETER_HANDLER
_invalid_parameter_handler oldHandler, newHandler;
newHandler = my_invalid_parameter_handler;
oldHandler = _set_invalid_parameter_handler(newHandler);
_CrtSetReportMode(_CRT_ASSERT, 0);
#endif
/* Disable floating point errors, Perl will trap the ones we
* care about. VC++ RTL defaults to switching these off
* already, but some RTLs don't. Since we don't
* want to be at the vendor's whim on the default, we set
* it explicitly here.
*/
#if !defined(__GNUC__)
_control87(MCW_EM, MCW_EM);
#endif
MALLOC_INIT;
/* When the manifest resource requests Common-Controls v6 then
* user32.dll no longer registers all the Windows classes used for
* standard controls but leaves some of them to be registered by
* comctl32.dll. InitCommonControls() doesn't do anything but calling
* it makes sure comctl32.dll gets loaded into the process and registers
* the standard control classes. Without this even normal Windows APIs
* like MessageBox() can fail under some versions of Windows XP.
*/
InitCommonControls();
g_osver.dwOSVersionInfoSize = sizeof(g_osver);
GetVersionEx(&g_osver);
ansify_path();
}
void
Perl_win32_term(void)
{
HINTS_REFCNT_TERM;
OP_REFCNT_TERM;
PERLIO_TERM;
MALLOC_TERM;
}
void
win32_get_child_IO(child_IO_table* ptbl)
{
ptbl->childStdIn = GetStdHandle(STD_INPUT_HANDLE);
ptbl->childStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
ptbl->childStdErr = GetStdHandle(STD_ERROR_HANDLE);
}
Sighandler_t
win32_signal(int sig, Sighandler_t subcode)
{
dTHXa(NULL);
if (sig < SIG_SIZE) {
int save_errno = errno;
Sighandler_t result;
#ifdef SET_INVALID_PARAMETER_HANDLER
/* Silence our invalid parameter handler since we expect to make some
* calls with invalid signal numbers giving a SIG_ERR result. */
BOOL oldvalue = set_silent_invalid_parameter_handler(TRUE);
#endif
result = signal(sig, subcode);
#ifdef SET_INVALID_PARAMETER_HANDLER
set_silent_invalid_parameter_handler(oldvalue);
#endif
aTHXa(PERL_GET_THX);
if (result == SIG_ERR) {
result = w32_sighandler[sig];
errno = save_errno;
}
w32_sighandler[sig] = subcode;
return result;
}
else {
errno = EINVAL;
return SIG_ERR;
}
}
/* The PerlMessageWindowClass's WindowProc */
LRESULT CALLBACK
win32_message_window_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
return win32_process_message(hwnd, msg, wParam, lParam) ?
0 : DefWindowProc(hwnd, msg, wParam, lParam);
}
/* The real message handler. Can be called with
* hwnd == NULL to process our thread messages. Returns TRUE for any messages
* that it processes */
static LRESULT
win32_process_message(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
/* BEWARE. The context retrieved using dTHX; is the context of the
* 'parent' thread during the CreateWindow() phase - i.e. for all messages
* up to and including WM_CREATE. If it ever happens that you need the
* 'child' context before this, then it needs to be passed into
* win32_create_message_window(), and passed to the WM_NCCREATE handler
* from the lparam of CreateWindow(). It could then be stored/retrieved
* using [GS]etWindowLongPtr(... GWLP_USERDATA ...), possibly eliminating
* the dTHX calls here. */
/* XXX For now it is assumed that the overhead of the dTHX; for what
* are relativley infrequent code-paths, is better than the added
* complexity of getting the correct context passed into
* win32_create_message_window() */
dTHX;
switch(msg) {
#ifdef USE_ITHREADS
case WM_USER_MESSAGE: {
long child = find_pseudo_pid(aTHX_ (int)wParam);
if (child >= 0) {
w32_pseudo_child_message_hwnds[child] = (HWND)lParam;
return 1;
}
break;
}
#endif
case WM_USER_KILL: {
/* We use WM_USER_KILL to fake kill() with other signals */
int sig = (int)wParam;
if (do_raise(aTHX_ sig))
sig_terminate(aTHX_ sig);
return 1;
}
case WM_TIMER: {
/* alarm() is a one-shot but SetTimer() repeats so kill it */
if (w32_timerid && w32_timerid==(UINT)wParam) {
KillTimer(w32_message_hwnd, w32_timerid);
w32_timerid=0;
/* Now fake a call to signal handler */
if (do_raise(aTHX_ 14))
sig_terminate(aTHX_ 14);
return 1;
}
break;
}
default:
break;
} /* switch */
/* Above or other stuff may have set a signal flag, and we may not have
* been called from win32_async_check() (e.g. some other GUI's message
* loop. BUT DON'T dispatch signals here: If someone has set a SIGALRM
* handler that die's, and the message loop that calls here is wrapped
* in an eval, then you may well end up with orphaned windows - signals
* are dispatched by win32_async_check() */
return 0;
}
void
win32_create_message_window_class(void)
{
/* create the window class for "message only" windows */
WNDCLASS wc;
Zero(&wc, 1, wc);
wc.lpfnWndProc = win32_message_window_proc;
wc.hInstance = (HINSTANCE)GetModuleHandle(NULL);
wc.lpszClassName = "PerlMessageWindowClass";
/* second and subsequent calls will fail, but class
* will already be registered */
RegisterClass(&wc);
}
HWND
win32_create_message_window(void)
{
win32_create_message_window_class();
return CreateWindow("PerlMessageWindowClass", "PerlMessageWindow",
0, 0, 0, 0, 0, HWND_MESSAGE, NULL, NULL, NULL);
}
#ifdef HAVE_INTERP_INTERN
static void
win32_csighandler(int sig)
{
#if 0
dTHXa(PERL_GET_SIG_CONTEXT);
Perl_warn(aTHX_ "Got signal %d",sig);
#endif
/* Does nothing */
}
#if defined(__MINGW32__) && defined(__cplusplus)
#define CAST_HWND__(x) (HWND__*)(x)
#else
#define CAST_HWND__(x) x
#endif
void
Perl_sys_intern_init(pTHX)
{
int i;
w32_perlshell_tokens = NULL;
w32_perlshell_vec = (char**)NULL;
w32_perlshell_items = 0;
w32_fdpid = newAV();
Newx(w32_children, 1, child_tab);
w32_num_children = 0;
# ifdef USE_ITHREADS
w32_pseudo_id = 0;
Newx(w32_pseudo_children, 1, pseudo_child_tab);
w32_num_pseudo_children = 0;
# endif
w32_timerid = 0;
w32_message_hwnd = CAST_HWND__(INVALID_HANDLE_VALUE);
w32_poll_count = 0;
for (i=0; i < SIG_SIZE; i++) {
w32_sighandler[i] = SIG_DFL;
}
# ifdef MULTIPLICITY
if (my_perl == PL_curinterp) {
# else
{
# endif
/* Force C runtime signal stuff to set its console handler */
signal(SIGINT,win32_csighandler);
signal(SIGBREAK,win32_csighandler);
/* We spawn asynchronous processes with the CREATE_NEW_PROCESS_GROUP
* flag. This has the side-effect of disabling Ctrl-C events in all
* processes in this group.
* We re-enable Ctrl-C handling by calling SetConsoleCtrlHandler()
* with a NULL handler.
*/
SetConsoleCtrlHandler(NULL,FALSE);
/* Push our handler on top */
SetConsoleCtrlHandler(win32_ctrlhandler,TRUE);
}
}
void
Perl_sys_intern_clear(pTHX)
{
Safefree(w32_perlshell_tokens);
Safefree(w32_perlshell_vec);
/* NOTE: w32_fdpid is freed by sv_clean_all() */
Safefree(w32_children);
if (w32_timerid) {
KillTimer(w32_message_hwnd, w32_timerid);
w32_timerid = 0;
}
if (w32_message_hwnd != NULL && w32_message_hwnd != INVALID_HANDLE_VALUE)
DestroyWindow(w32_message_hwnd);
# ifdef MULTIPLICITY
if (my_perl == PL_curinterp) {
# else
{
# endif
SetConsoleCtrlHandler(win32_ctrlhandler,FALSE);
}
# ifdef USE_ITHREADS
Safefree(w32_pseudo_children);
# endif
}
# ifdef USE_ITHREADS
void
Perl_sys_intern_dup(pTHX_ struct interp_intern *src, struct interp_intern *dst)
{
PERL_ARGS_ASSERT_SYS_INTERN_DUP;
dst->perlshell_tokens = NULL;
dst->perlshell_vec = (char**)NULL;
dst->perlshell_items = 0;
dst->fdpid = newAV();
Newxz(dst->children, 1, child_tab);
dst->pseudo_id = 0;
Newxz(dst->pseudo_children, 1, pseudo_child_tab);
dst->timerid = 0;
dst->message_hwnd = CAST_HWND__(INVALID_HANDLE_VALUE);
dst->poll_count = 0;
Copy(src->sigtable,dst->sigtable,SIG_SIZE,Sighandler_t);
}
# endif /* USE_ITHREADS */
#endif /* HAVE_INTERP_INTERN */