/* 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 #ifdef __GNUC__ #define Win32_Winsock #endif #include #ifndef HWND_MESSAGE # define HWND_MESSAGE ((HWND)-3) #endif #ifndef WC_NO_BEST_FIT_CHARS # define WC_NO_BEST_FIT_CHARS 0x00000400 /* requires Windows 2000 or later */ #endif #include #include #include #include #include #define SystemProcessesAndThreadsInformation 5 /* Inline some definitions from the DDK */ typedef struct { USHORT Length; USHORT MaximumLength; PWSTR Buffer; } UNICODE_STRING; typedef struct { ULONG NextEntryDelta; ULONG ThreadCount; ULONG Reserved1[6]; LARGE_INTEGER CreateTime; LARGE_INTEGER UserTime; LARGE_INTEGER KernelTime; UNICODE_STRING ProcessName; LONG BasePriority; ULONG ProcessId; ULONG InheritedFromProcessId; /* Remainder of the structure depends on the Windows version, * but we don't need those additional fields anyways... */ } SYSTEM_PROCESSES; /* #include "config.h" */ #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) #define PerlIO FILE #endif #include #include "EXTERN.h" #include "perl.h" #define NO_XSLOCKS #define PERL_NO_GET_CONTEXT #include "XSUB.h" #include #ifndef __GNUC__ /* assert.h conflicts with #define of assert in perl.h */ #include #endif #include #include #include #include #if defined(_MSC_VER) || defined(__MINGW32__) #include #else #include #endif #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 #if defined(__BORLANDC__) # define _stat stat # define _utimbuf utimbuf #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 static void get_shell(void); static long tokenize(const char *str, char **dest, char ***destv); static int do_spawn2(pTHX_ const char *cmd, int exectype); static BOOL has_shell_metachars(const char *ptr); static long filetime_to_clock(PFILETIME ft); static BOOL filetime_from_time(PFILETIME ft, time_t t); static char * get_emd_part(SV **leading, STRLEN *const len, char *trailing, ...); static void remove_dead_process(long deceased); static long find_pid(int pid); static char * qualified_path(const char *cmd); static char * win32_get_xlib(const char *pl, const char *xlib, const char *libname, STRLEN *const len); static LRESULT win32_process_message(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam); #ifdef USE_ITHREADS static void remove_dead_pseudo_process(long child); static long find_pseudo_pid(int pid); #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, ""}; static HANDLE (WINAPI *pfnCreateToolhelp32Snapshot)(DWORD, DWORD) = NULL; static BOOL (WINAPI *pfnProcess32First)(HANDLE, PROCESSENTRY32*) = NULL; static BOOL (WINAPI *pfnProcess32Next)(HANDLE, PROCESSENTRY32*) = NULL; static LONG (WINAPI *pfnZwQuerySystemInformation)(UINT, PVOID, ULONG, PULONG); #ifdef __BORLANDC__ /* Silence STDERR grumblings from Borland's math library. */ DllExport int _matherr(struct _exception *a) { PERL_UNUSED_VAR(a); return 1; } #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 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 wprintf(L"Invalid parameter detected in function %s." L" File: %s Line: %d\n", function, file, line); wprintf(L"Expression: %s\n", expression); # endif } #endif int IsWin95(void) { return (g_osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS); } int IsWinNT(void) { return (g_osver.dwPlatformId == VER_PLATFORM_WIN32_NT); } int IsWin2000(void) { return (g_osver.dwMajorVersion > 4); } 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; } char * win32_get_privlib(const char *pl, STRLEN *const len) { dTHX; 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) { dTHX; 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) { sv_catpvn(sv1, ";", 1); sv_catsv(sv1, sv2); } if (len) *len = SvCUR(sv1); return SvPVX(sv1); } 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 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) { #ifdef FIXCMD #define fixcmd(x) { \ char *pspace = strchr((x),' '); \ if (pspace) { \ char *p = (x); \ while (p < pspace) { \ if (*p == '/') \ *p = '\\'; \ p++; \ } \ } \ } #else #define fixcmd(x) #endif fixcmd(cmd); 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) { int pid; #ifdef USE_ITHREADS dTHX; if (w32_pseudo_id) return -((int)w32_pseudo_id); #endif pid = _getpid(); /* Windows 9x appears to always reports a pid for threads and processes * that has the high bit set. So we treat the lower 31 bits as the * "real" PID for Perl's purposes. */ if (IsWin95() && pid < 0) pid = -pid; return pid; } /* 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) { dTHX; int slen = strlen(str); register char *ret; register 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 = (IsWinNT() ? "cmd.exe /x/d/c" : "command.com /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) { dTHX; DIR *dirp; long len; long idx; char scanname[MAX_PATH+3]; Stat_t sbuf; WIN32_FIND_DATAA aFindData; WIN32_FIND_DATAW wFindData; bool using_wide; char buffer[MAX_PATH*2]; char *ptr; len = strlen(filename); if (len > MAX_PATH) return NULL; /* check to see if filename is a directory */ if (win32_stat(filename, &sbuf) < 0 || !S_ISDIR(sbuf.st_mode)) 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 */ if (IsWin2000()) { WCHAR wscanname[sizeof(scanname)]; MultiByteToWideChar(CP_ACP, 0, scanname, -1, wscanname, sizeof(wscanname)/sizeof(WCHAR)); dirp->handle = FindFirstFileW(PerlDir_mapW(wscanname), &wFindData); using_wide = TRUE; } else { dirp->handle = FindFirstFileA(PerlDir_mapA(scanname), &aFindData); } 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; } if (using_wide) { 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); } ptr = buffer; } else { ptr = aFindData.cFileName; } /* now allocate the first part of the string table for * the filenames that we find. */ idx = strlen(ptr)+1; if (idx < 256) dirp->size = 256; else dirp->size = idx; Newx(dirp->start, dirp->size, char); strcpy(dirp->start, ptr); 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) { dTHX; BOOL res; WIN32_FIND_DATAA aFindData; char buffer[MAX_PATH*2]; char *ptr; /* finding the next file that matches the wildcard * (which should be all of them in this directory!). */ if (IsWin2000()) { 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); } ptr = buffer; } } else { res = FindNextFileA(dirp->handle, &aFindData); ptr = aFindData.cFileName; } if (res) { long endpos = dirp->end - dirp->start; long newsize = endpos + strlen(ptr) + 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, ptr); dirp->end = dirp->start + newsize; dirp->nfiles++; } else dirp->curr = NULL; } return &(dirp->dirstr); } else return NULL; } /* Telldir returns the current string pointer position */ DllExport long win32_telldir(DIR *dirp) { return (dirp->curr - dirp->start); } /* Seekdir moves the string pointer to a previously saved position * (returned by telldir). */ DllExport void win32_seekdir(DIR *dirp, long loc) { dirp->curr = 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) { dTHX; if (dirp->handle != INVALID_HANDLE_VALUE) FindClose(dirp->handle); Safefree(dirp->start); Safefree(dirp); return 1; } /* * 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); } 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(int pid) { dTHX; 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(int pid) { dTHX; 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); 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; } /* Traverse process tree using ToolHelp functions */ static int kill_process_tree_toolhelp(DWORD 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 = pfnCreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); if (snapshot_handle != INVALID_HANDLE_VALUE) { PROCESSENTRY32 entry; entry.dwSize = sizeof(entry); if (pfnProcess32First(snapshot_handle, &entry)) { do { if (entry.th32ParentProcessID == pid) killed += kill_process_tree_toolhelp(entry.th32ProcessID, sig); entry.dwSize = sizeof(entry); } while (pfnProcess32Next(snapshot_handle, &entry)); } CloseHandle(snapshot_handle); } CloseHandle(process_handle); return killed; } /* Traverse process tree using undocumented system information structures. * This is only necessary on Windows NT, which lacks the ToolHelp functions. */ static int kill_process_tree_sysinfo(SYSTEM_PROCESSES *process_info, DWORD pid, int sig) { HANDLE process_handle; SYSTEM_PROCESSES *p = process_info; int killed = 0; process_handle = OpenProcess(PROCESS_TERMINATE, FALSE, pid); if (process_handle == NULL) return 0; killed += terminate_process(pid, process_handle, sig); while (1) { if (p->InheritedFromProcessId == (DWORD)pid) killed += kill_process_tree_sysinfo(process_info, p->ProcessId, sig); if (p->NextEntryDelta == 0) break; p = (SYSTEM_PROCESSES*)((char*)p + p->NextEntryDelta); } CloseHandle(process_handle); return killed; } int killpg(int pid, int sig) { /* Use "documented" method whenever available */ if (pfnCreateToolhelp32Snapshot && pfnProcess32First && pfnProcess32Next) { return kill_process_tree_toolhelp((DWORD)pid, sig); } /* Fall back to undocumented Windows internals on Windows NT */ if (pfnZwQuerySystemInformation) { dTHX; char *buffer; DWORD size = 0; pfnZwQuerySystemInformation(SystemProcessesAndThreadsInformation, NULL, 0, &size); Newx(buffer, size, char); if (pfnZwQuerySystemInformation(SystemProcessesAndThreadsInformation, buffer, size, NULL) >= 0) { int killed = kill_process_tree_sysinfo((SYSTEM_PROCESSES*)buffer, (DWORD)pid, sig); Safefree(buffer); return killed; } } return 0; } 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; } 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(-pid); if (child >= 0) { HWND hwnd = w32_pseudo_child_message_hwnds[child]; 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 */ if (TerminateThread(hProcess, sig)) { remove_dead_pseudo_process(child); return 0; } break; default: { int count = 0; /* pseudo-process has not yet properly initialized if hwnd isn't set */ while (hwnd == INVALID_HANDLE_VALUE && count < 5) { /* Yield and wait for the other thread to send us its message_hwnd */ Sleep(0); win32_async_check(aTHX); hwnd = w32_pseudo_child_message_hwnds[child]; ++count; } if (hwnd != INVALID_HANDLE_VALUE) { /* We fake signals to pseudo-processes using Win32 * message queue. In Win9X the pids are negative already. */ if ((hwnd != NULL && PostMessage(hwnd, WM_USER_KILL, sig, 0)) || PostThreadMessage(IsWin95() ? pid : -pid, WM_USER_KILL, sig, 0)) { /* It might be us ... */ PERL_ASYNC_CHECK(); return 0; } } break; } } /* switch */ } else if (IsWin95()) { pid = -pid; goto alien_process; } } else #endif { child = find_pid(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 { alien_process: if (my_kill((IsWin95() ? -pid : pid), sig)) return 0; } } errno = EINVAL; return -1; } DllExport int win32_stat(const char *path, Stat_t *sbuf) { dTHX; char buffer[MAX_PATH+1]; int l = strlen(path); 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. Borland (at least) * switches 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; } } #ifdef __BORLANDC__ if (S_ISDIR(sbuf->st_mode)) { sbuf->st_mode |= S_IEXEC; } else if (S_ISREG(sbuf->st_mode)) { int perms; if (l >= 4 && path[l-4] == '.') { const char *e = path + l - 3; if (strnicmp(e,"exe",3) && strnicmp(e,"bat",3) && strnicmp(e,"com",3) && (IsWin95() || strnicmp(e,"cmd",3))) sbuf->st_mode &= ~S_IEXEC; else sbuf->st_mode |= S_IEXEC; } else sbuf->st_mode &= ~S_IEXEC; /* Propagate permissions to _group_ and _others_ */ perms = sbuf->st_mode & (S_IREAD|S_IWRITE|S_IEXEC); sbuf->st_mode |= (perms>>3) | (perms>>6); } #endif } 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) { dTHX; /* Can't use PerlIO to write as it allocates memory */ PerlLIO_write(PerlIO_fileno(Perl_error_log), PL_no_mem, strlen(PL_no_mem)); my_exit(1); } exit(1); } /* 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 = 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 = 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 = 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; } DllExport char * win32_getenv(const char *name) { dTHX; DWORD needlen; SV *curitem = NULL; 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 { /* allow any environment variables that begin with 'PERL' to be stored in the registry */ 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) { dTHX; char* curitem; char* val; int relval = -1; if (name) { Newx(curitem,strlen(name)+1,char); 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; } Safefree(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 /* || !IsWinNT() */) 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(__BORLANDC__)&&(__BORLANDC__<=0x520)) \ || (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_MIPS: arch = "mips"; break; case PROCESSOR_ARCHITECTURE_ALPHA: arch = "alpha"; break; case PROCESSOR_ARCHITECTURE_PPC: arch = "ppc"; break; #ifdef PROCESSOR_ARCHITECTURE_SHX case PROCESSOR_ARCHITECTURE_SHX: arch = "shx"; break; #endif #ifdef PROCESSOR_ARCHITECTURE_ARM case PROCESSOR_ARCHITECTURE_ARM: arch = "arm"; break; #endif #ifdef PROCESSOR_ARCHITECTURE_IA64 case PROCESSOR_ARCHITECTURE_IA64: arch = "ia64"; break; #endif #ifdef PROCESSOR_ARCHITECTURE_ALPHA64 case PROCESSOR_ARCHITECTURE_ALPHA64: arch = "alpha64"; break; #endif #ifdef PROCESSOR_ARCHITECTURE_MSIL case PROCESSOR_ARCHITECTURE_MSIL: arch = "msil"; break; #endif #ifdef PROCESSOR_ARCHITECTURE_AMD64 case PROCESSOR_ARCHITECTURE_AMD64: arch = "amd64"; break; #endif #ifdef PROCESSOR_ARCHITECTURE_IA32_ON_WIN64 case PROCESSOR_ARCHITECTURE_IA32_ON_WIN64: arch = "ia32-64"; break; #endif #ifdef PROCESSOR_ARCHITECTURE_UNKNOWN case PROCESSOR_ARCHITECTURE_UNKNOWN: arch = "unknown"; break; #endif 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 */ DWORD ticks = 0; if (timeout != INFINITE) { ticks = GetTickCount(); timeout += ticks; } while (1) { DWORD result = MsgWaitForMultipleObjects(count,handles,FALSE,timeout-ticks, 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) { ticks = GetTickCount(); } 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; } } /* compute time left to wait */ ticks = timeout - ticks; /* If we are past the end say zero */ return (ticks > 0) ? ticks : 0; } int win32_internal_wait(int *status, DWORD timeout) { /* XXX this wait emulation only knows about processes * spawned via win32_spawnvp(P_NOWAIT, ...). */ dTHX; 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(status, timeout); #ifdef USE_ITHREADS else if (pid < 0) { child = find_pseudo_pid(-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; } else if (IsWin95()) { pid = -pid; goto alien_process; } } #endif else { HANDLE hProcess; DWORD waitcode; child = find_pid(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 { alien_process: hProcess = OpenProcess(PROCESS_ALL_ACCESS, TRUE, (IsWin95() ? -pid : 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) { return win32_internal_wait(status, INFINITE); } DllExport unsigned int win32_sleep(unsigned int t) { dTHX; /* Win32 times are in ms so *1000 in and /1000 out */ 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 */ 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; } #ifdef HAVE_DES_FCRYPT extern char * des_fcrypt(const char *txt, const char *salt, char *cbuf); #endif DllExport char * win32_crypt(const char *txt, const char *salt) { dTHX; #ifdef HAVE_DES_FCRYPT return des_fcrypt(txt, salt, w32_crypt_buffer); #else Perl_croak(aTHX_ "The crypt() function is unimplemented due to excessive paranoia."); return NULL; #endif } #ifdef USE_FIXED_OSFHANDLE #define FOPEN 0x01 /* file handle open */ #define FNOINHERIT 0x10 /* file handle opened O_NOINHERIT */ #define FAPPEND 0x20 /* file handle opened O_APPEND */ #define FDEV 0x40 /* file handle refers to device */ #define FTEXT 0x80 /* file handle is in text mode */ /*** *int my_open_osfhandle(intptr_t osfhandle, int flags) - open C Runtime file handle * *Purpose: * This function allocates a free C Runtime file handle and associates * it with the Win32 HANDLE specified by the first parameter. This is a * temperary fix for WIN95's brain damage GetFileType() error on socket * we just bypass that call for socket * * This works with MSVC++ 4.0+ or GCC/Mingw32 * *Entry: * intptr_t osfhandle - Win32 HANDLE to associate with C Runtime file handle. * int flags - flags to associate with C Runtime file handle. * *Exit: * returns index of entry in fh, if successful * return -1, if no free entry is found * *Exceptions: * *******************************************************************************/ /* * we fake up some parts of the CRT that aren't exported by MSVCRT.dll * this lets sockets work on Win9X with GCC and should fix the problems * with perl95.exe * -- BKS, 1-23-2000 */ /* create an ioinfo entry, kill its handle, and steal the entry */ static int _alloc_osfhnd(void) { HANDLE hF = CreateFile("NUL", 0, 0, NULL, OPEN_ALWAYS, 0, NULL); int fh = _open_osfhandle((intptr_t)hF, 0); CloseHandle(hF); if (fh == -1) return fh; EnterCriticalSection(&(_pioinfo(fh)->lock)); return fh; } static int my_open_osfhandle(intptr_t osfhandle, int flags) { int fh; char fileflags; /* _osfile flags */ /* copy relevant flags from second parameter */ fileflags = FDEV; if (flags & O_APPEND) fileflags |= FAPPEND; if (flags & O_TEXT) fileflags |= FTEXT; if (flags & O_NOINHERIT) fileflags |= FNOINHERIT; /* attempt to allocate a C Runtime file handle */ if ((fh = _alloc_osfhnd()) == -1) { errno = EMFILE; /* too many open files */ _doserrno = 0L; /* not an OS error */ return -1; /* return error to caller */ } /* the file is open. now, set the info in _osfhnd array */ _set_osfhnd(fh, osfhandle); fileflags |= FOPEN; /* mark as open */ _osfile(fh) = fileflags; /* set osfile entry */ LeaveCriticalSection(&_pioinfo(fh)->lock); return fh; /* return handle */ } #endif /* USE_FIXED_OSFHANDLE */ /* 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; if (!IsWinNT()) { dTHX; Perl_croak_nocontext("flock() unimplemented on this platform"); return -1; } 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 __BORLANDC__ && !defined __MINGW32__ /* compiler intolerance */ extern int sys_nerr; #endif if (e < 0 || e > sys_nerr) { dTHX; if (e < 0) e = GetLastError(); 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) { dTHX; FILE *f; if (!*filename) return NULL; if (stricmp(filename, "/dev/null")==0) filename = "NUL"; f = fopen(PerlDir_mapA(filename), mode); /* avoid buffering headaches for child processes */ if (f && *mode == 'a') win32_fseek(f, 0, SEEK_END); return f; } #ifndef USE_SOCKETS_AS_HANDLES #undef fdopen #define fdopen my_fdopen #endif DllExport FILE * win32_fdopen(int handle, const char *mode) { dTHX; 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) { dTHX; if (stricmp(path, "/dev/null")==0) path = "NUL"; return freopen(PerlDir_mapA(path), mode, stream); } DllExport int win32_fclose(FILE *pf) { return my_fclose(pf); /* defined in win32sck.c */ } 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) #if defined(__BORLANDC__) /* buk */ return win32_tell( fileno( pf ) ); #else fpos_t pos; if (fgetpos(pf, &pos)) return -1; return (Off_t)pos; #endif #else return ftell(pf); #endif } DllExport int win32_fseek(FILE *pf, Off_t offset,int origin) { #if defined(WIN64) || defined(USE_LARGE_FILES) #if defined(__BORLANDC__) /* buk */ return win32_lseek( fileno(pf), offset, origin ); #else 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); #endif #else return fseek(pf, (long)offset, origin); #endif } DllExport int win32_fgetpos(FILE *pf,fpos_t *p) { #if defined(__BORLANDC__) && defined(USE_LARGE_FILES) /* buk */ if( win32_tell(fileno(pf)) == -1L ) { errno = EBADF; return -1; } return 0; #else return fgetpos(pf, p); #endif } DllExport int win32_fsetpos(FILE *pf,const fpos_t *p) { #if defined(__BORLANDC__) && defined(USE_LARGE_FILES) /* buk */ return win32_lseek(fileno(pf), *p, SEEK_CUR); #else return fsetpos(pf, p); #endif } DllExport void win32_rewind(FILE *pf) { rewind(pf); return; } DllExport int win32_tmpfd(void) { dTHX; 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) { #if defined(__BORLANDC__) setmode(fd,O_BINARY); #endif 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) { #ifdef __BORLANDC__ /* A file designated by filehandle is not shown as accessible * for write operations, probably because it is opened for reading. * --Vadim Konovalov */ BY_HANDLE_FILE_INFORMATION bhfi; #if defined(WIN64) || defined(USE_LARGE_FILES) /* Borland 5.5.1 has a 64-bit stat, but only a 32-bit fstat */ struct stat tmp; int rc = fstat(fd,&tmp); sbufptr->st_dev = tmp.st_dev; sbufptr->st_ino = tmp.st_ino; sbufptr->st_mode = tmp.st_mode; sbufptr->st_nlink = tmp.st_nlink; sbufptr->st_uid = tmp.st_uid; sbufptr->st_gid = tmp.st_gid; sbufptr->st_rdev = tmp.st_rdev; sbufptr->st_size = tmp.st_size; sbufptr->st_atime = tmp.st_atime; sbufptr->st_mtime = tmp.st_mtime; sbufptr->st_ctime = tmp.st_ctime; #else int rc = fstat(fd,sbufptr); #endif if (GetFileInformationByHandle((HANDLE)_get_osfhandle(fd), &bhfi)) { #if defined(WIN64) || defined(USE_LARGE_FILES) sbufptr->st_size = ((__int64)bhfi.nFileSizeHigh << 32) | bhfi.nFileSizeLow ; #endif sbufptr->st_mode &= 0xFE00; if (bhfi.dwFileAttributes & FILE_ATTRIBUTE_READONLY) sbufptr->st_mode |= (S_IREAD + (S_IREAD >> 3) + (S_IREAD >> 6)); else sbufptr->st_mode |= ((S_IREAD|S_IWRITE) + ((S_IREAD|S_IWRITE) >> 3) + ((S_IREAD|S_IWRITE) >> 6)); } return rc; #else return my_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) { dTHX; Perl_croak(aTHX_ "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 dTHX; 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 */ } static BOOL WINAPI Nt4CreateHardLinkW( LPCWSTR lpFileName, LPCWSTR lpExistingFileName, LPSECURITY_ATTRIBUTES lpSecurityAttributes) { HANDLE handle; WCHAR wFullName[MAX_PATH+1]; LPVOID lpContext = NULL; WIN32_STREAM_ID StreamId; DWORD dwSize = (char*)&StreamId.cStreamName - (char*)&StreamId; DWORD dwWritten; DWORD dwLen; BOOL bSuccess; BOOL (__stdcall *pfnBackupWrite)(HANDLE, LPBYTE, DWORD, LPDWORD, BOOL, BOOL, LPVOID*) = (BOOL (__stdcall *)(HANDLE, LPBYTE, DWORD, LPDWORD, BOOL, BOOL, LPVOID*)) GetProcAddress(GetModuleHandle("kernel32.dll"), "BackupWrite"); if (pfnBackupWrite == NULL) return 0; dwLen = GetFullPathNameW(lpFileName, MAX_PATH, wFullName, NULL); if (dwLen == 0) return 0; dwLen = (dwLen+1)*sizeof(WCHAR); handle = CreateFileW(lpExistingFileName, FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, 0, NULL); if (handle == INVALID_HANDLE_VALUE) return 0; StreamId.dwStreamId = BACKUP_LINK; StreamId.dwStreamAttributes = 0; StreamId.dwStreamNameSize = 0; #if defined(__BORLANDC__) \ ||(defined(__MINGW32__) && !defined(_ANONYMOUS_UNION)) StreamId.Size.u.HighPart = 0; StreamId.Size.u.LowPart = dwLen; #else StreamId.Size.HighPart = 0; StreamId.Size.LowPart = dwLen; #endif bSuccess = pfnBackupWrite(handle, (LPBYTE)&StreamId, dwSize, &dwWritten, FALSE, FALSE, &lpContext); if (bSuccess) { bSuccess = pfnBackupWrite(handle, (LPBYTE)wFullName, dwLen, &dwWritten, FALSE, FALSE, &lpContext); pfnBackupWrite(handle, NULL, 0, &dwWritten, TRUE, FALSE, &lpContext); } CloseHandle(handle); return bSuccess; } DllExport int win32_link(const char *oldname, const char *newname) { dTHX; BOOL (__stdcall *pfnCreateHardLinkW)(LPCWSTR,LPCWSTR,LPSECURITY_ATTRIBUTES); WCHAR wOldName[MAX_PATH+1]; WCHAR wNewName[MAX_PATH+1]; if (IsWin95()) Perl_croak(aTHX_ PL_no_func, "link"); pfnCreateHardLinkW = (BOOL (__stdcall *)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES)) GetProcAddress(GetModuleHandle("kernel32.dll"), "CreateHardLinkW"); if (pfnCreateHardLinkW == NULL) pfnCreateHardLinkW = Nt4CreateHardLinkW; if (MultiByteToWideChar(CP_ACP, 0, oldname, -1, wOldName, MAX_PATH+1) && MultiByteToWideChar(CP_ACP, 0, newname, -1, wNewName, MAX_PATH+1) && (wcscpy(wOldName, PerlDir_mapW(wOldName)), pfnCreateHardLinkW(PerlDir_mapW(wNewName), wOldName, NULL))) { return 0; } errno = (GetLastError() == ERROR_FILE_NOT_FOUND) ? ENOENT : EINVAL; return -1; } DllExport int win32_rename(const char *oname, const char *newname) { char szOldName[MAX_PATH+1]; char szNewName[MAX_PATH+1]; BOOL bResult; dTHX; /* XXX despite what the documentation says about MoveFileEx(), * it doesn't work under Windows95! */ if (IsWinNT()) { DWORD dwFlags = MOVEFILE_COPY_ALLOWED; 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; } else { int retval = 0; char szTmpName[MAX_PATH+1]; char dname[MAX_PATH+1]; char *endname = NULL; STRLEN tmplen = 0; DWORD from_attr, to_attr; strcpy(szOldName, PerlDir_mapA(oname)); strcpy(szNewName, PerlDir_mapA(newname)); /* if oname doesn't exist, do nothing */ from_attr = GetFileAttributes(szOldName); if (from_attr == 0xFFFFFFFF) { errno = ENOENT; return -1; } /* if newname exists, rename it to a temporary name so that we * don't delete it in case oname happens to be the same file * (but perhaps accessed via a different path) */ to_attr = GetFileAttributes(szNewName); if (to_attr != 0xFFFFFFFF) { /* if newname is a directory, we fail * XXX could overcome this with yet more convoluted logic */ if (to_attr & FILE_ATTRIBUTE_DIRECTORY) { errno = EACCES; return -1; } tmplen = strlen(szNewName); strcpy(szTmpName,szNewName); endname = szTmpName+tmplen; for (; endname > szTmpName ; --endname) { if (*endname == '/' || *endname == '\\') { *endname = '\0'; break; } } if (endname > szTmpName) endname = strcpy(dname,szTmpName); else endname = "."; /* get a temporary filename in same directory * XXX is this really the best we can do? */ if (!GetTempFileName((LPCTSTR)endname, "plr", 0, szTmpName)) { errno = ENOENT; return -1; } DeleteFile(szTmpName); retval = rename(szNewName, szTmpName); if (retval != 0) { errno = EACCES; return retval; } } /* rename oname to newname */ retval = rename(szOldName, szNewName); /* if we created a temporary file before ... */ if (endname != NULL) { /* ...and rename succeeded, delete temporary file/directory */ if (retval == 0) DeleteFile(szTmpName); /* else restore it to what it was */ else (void)rename(szTmpName, szNewName); } return retval; } } 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) #if defined(__BORLANDC__) /* buk */ LARGE_INTEGER pos; pos.QuadPart = offset; pos.LowPart = SetFilePointer( (HANDLE)_get_osfhandle(fd), pos.LowPart, &pos.HighPart, origin ); if (pos.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) { pos.QuadPart = -1; } return pos.QuadPart; #else return _lseeki64(fd, offset, origin); #endif #else return lseek(fd, (long)offset, origin); #endif } DllExport Off_t win32_tell(int fd) { #if defined(WIN64) || defined(USE_LARGE_FILES) #if defined(__BORLANDC__) /* buk */ LARGE_INTEGER pos; pos.QuadPart = 0; pos.LowPart = SetFilePointer( (HANDLE)_get_osfhandle(fd), pos.LowPart, &pos.HighPart, FILE_CURRENT ); if (pos.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) { pos.QuadPart = -1; } return pos.QuadPart; /* return tell(fd); */ #else return _telli64(fd); #endif #else return tell(fd); #endif } DllExport int win32_open(const char *path, int flag, ...) { dTHX; 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"; 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) { return my_close(fd); } DllExport int win32_eof(int fd) { return eof(fd); } DllExport int win32_dup(int fd) { return dup(fd); } DllExport int win32_dup2(int fd1,int fd2) { return dup2(fd1,fd2); } #ifdef PERL_MSVCRT_READFIX #define LF 10 /* line feed */ #define CR 13 /* carriage return */ #define CTRLZ 26 /* ctrl-z means eof for text */ #define FOPEN 0x01 /* file handle open */ #define FEOFLAG 0x02 /* end of file has been encountered */ #define FCRLF 0x04 /* CR-LF across read buffer (in text mode) */ #define FPIPE 0x08 /* file handle refers to a pipe */ #define FAPPEND 0x20 /* file handle opened O_APPEND */ #define FDEV 0x40 /* file handle refers to device */ #define FTEXT 0x80 /* file handle is in text mode */ #define MAX_DESCRIPTOR_COUNT (64*32) /* this is the maximun that MSVCRT can handle */ int __cdecl _fixed_read(int fh, void *buf, unsigned cnt) { int bytes_read; /* number of bytes read */ char *buffer; /* buffer to read to */ int os_read; /* bytes read on OS call */ char *p, *q; /* pointers into buffer */ char peekchr; /* peek-ahead character */ ULONG filepos; /* file position after seek */ ULONG dosretval; /* o.s. return value */ /* validate handle */ if (((unsigned)fh >= (unsigned)MAX_DESCRIPTOR_COUNT) || !(_osfile(fh) & FOPEN)) { /* out of range -- return error */ errno = EBADF; _doserrno = 0; /* not o.s. error */ return -1; } /* * If lockinitflag is FALSE, assume fd is device * lockinitflag is set to TRUE by open. */ if (_pioinfo(fh)->lockinitflag) EnterCriticalSection(&(_pioinfo(fh)->lock)); /* lock file */ bytes_read = 0; /* nothing read yet */ buffer = (char*)buf; if (cnt == 0 || (_osfile(fh) & FEOFLAG)) { /* nothing to read or at EOF, so return 0 read */ goto functionexit; } if ((_osfile(fh) & (FPIPE|FDEV)) && _pipech(fh) != LF) { /* a pipe/device and pipe lookahead non-empty: read the lookahead * char */ *buffer++ = _pipech(fh); ++bytes_read; --cnt; _pipech(fh) = LF; /* mark as empty */ } /* read the data */ if (!ReadFile((HANDLE)_osfhnd(fh), buffer, cnt, (LPDWORD)&os_read, NULL)) { /* ReadFile has reported an error. recognize two special cases. * * 1. map ERROR_ACCESS_DENIED to EBADF * * 2. just return 0 if ERROR_BROKEN_PIPE has occurred. it * means the handle is a read-handle on a pipe for which * all write-handles have been closed and all data has been * read. */ if ((dosretval = GetLastError()) == ERROR_ACCESS_DENIED) { /* wrong read/write mode should return EBADF, not EACCES */ errno = EBADF; _doserrno = dosretval; bytes_read = -1; goto functionexit; } else if (dosretval == ERROR_BROKEN_PIPE) { bytes_read = 0; goto functionexit; } else { bytes_read = -1; goto functionexit; } } bytes_read += os_read; /* update bytes read */ if (_osfile(fh) & FTEXT) { /* now must translate CR-LFs to LFs in the buffer */ /* set CRLF flag to indicate LF at beginning of buffer */ /* if ((os_read != 0) && (*(char *)buf == LF)) */ /* _osfile(fh) |= FCRLF; */ /* else */ /* _osfile(fh) &= ~FCRLF; */ _osfile(fh) &= ~FCRLF; /* convert chars in the buffer: p is src, q is dest */ p = q = (char*)buf; while (p < (char *)buf + bytes_read) { if (*p == CTRLZ) { /* if fh is not a device, set ctrl-z flag */ if (!(_osfile(fh) & FDEV)) _osfile(fh) |= FEOFLAG; break; /* stop translating */ } else if (*p != CR) *q++ = *p++; else { /* *p is CR, so must check next char for LF */ if (p < (char *)buf + bytes_read - 1) { if (*(p+1) == LF) { p += 2; *q++ = LF; /* convert CR-LF to LF */ } else *q++ = *p++; /* store char normally */ } else { /* This is the hard part. We found a CR at end of buffer. We must peek ahead to see if next char is an LF. */ ++p; dosretval = 0; if (!ReadFile((HANDLE)_osfhnd(fh), &peekchr, 1, (LPDWORD)&os_read, NULL)) dosretval = GetLastError(); if (dosretval != 0 || os_read == 0) { /* couldn't read ahead, store CR */ *q++ = CR; } else { /* peekchr now has the extra character -- we now have several possibilities: 1. disk file and char is not LF; just seek back and copy CR 2. disk file and char is LF; store LF, don't seek back 3. pipe/device and char is LF; store LF. 4. pipe/device and char isn't LF, store CR and put char in pipe lookahead buffer. */ if (_osfile(fh) & (FDEV|FPIPE)) { /* non-seekable device */ if (peekchr == LF) *q++ = LF; else { *q++ = CR; _pipech(fh) = peekchr; } } else { /* disk file */ if (peekchr == LF) { /* nothing read yet; must make some progress */ *q++ = LF; /* turn on this flag for tell routine */ _osfile(fh) |= FCRLF; } else { HANDLE osHandle; /* o.s. handle value */ /* seek back */ if ((osHandle = (HANDLE)_get_osfhandle(fh)) != (HANDLE)-1) { if ((filepos = SetFilePointer(osHandle, -1, NULL, FILE_CURRENT)) == -1) dosretval = GetLastError(); } if (peekchr != LF) *q++ = CR; } } } } } } /* we now change bytes_read to reflect the true number of chars in the buffer */ bytes_read = q - (char *)buf; } functionexit: if (_pioinfo(fh)->lockinitflag) LeaveCriticalSection(&(_pioinfo(fh)->lock)); /* unlock file */ return bytes_read; } #endif /* PERL_MSVCRT_READFIX */ DllExport int win32_read(int fd, void *buf, unsigned int cnt) { #ifdef PERL_MSVCRT_READFIX return _fixed_read(fd, buf, cnt); #else return read(fd, buf, cnt); #endif } 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) { dTHX; 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) { 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 || (IsWinNT() && stricmp(&cname[clen-4], ".cmd") == 0))) { bat_file = TRUE; if (!IsWin95()) 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 && !IsWin95()) { *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) { dTHX; 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 */ 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) { dTHX; 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) { dTHX; 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 dTHX; 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); 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; if (IsWin95() && ret < 0) ret = -ret; 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) # ifdef __BORLANDC__ return spawnv(P_WAIT, cmdname, (char *const *)argv); # else return spawnv(P_WAIT, cmdname, argv); # endif #endif #ifdef __BORLANDC__ return execv(cmdname, (char *const *)argv); #else return execv(cmdname, argv); #endif } 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 #ifdef __BORLANDC__ return execvp(cmdname, (char *const *)argv); #else return execvp(cmdname, argv); #endif } 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) { #ifdef USE_FIXED_OSFHANDLE if (IsWin95()) return my_open_osfhandle(handle, flags); #endif 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 */ #ifdef __BORLANDC__ if((pf)->flags & _F_READ) { mode[0] = 'r'; mode[1] = 0; } else if((pf)->flags & _F_WRIT) { mode[0] = 'a'; mode[1] = 0; } else if((pf)->flags & _F_RDWR) { mode[0] = 'r'; mode[1] = '+'; mode[2] = 0; } #else 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; } #endif /* 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) { dTHX; char buf[MAX_PATH+1]; 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; } } 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) { dTHX; char *file = __FILE__; /* Initialize Win32CORE if it has been statically linked. */ void (*pfn_init)(pTHX); #if defined(__BORLANDC__) /* makedef.pl seems to have given up on fixing this issue in the .def file */ pfn_init = (void (*)(pTHX))GetProcAddress((HMODULE)w32_perldll_handle, "_init_Win32CORE"); #else pfn_init = (void (*)(pTHX))GetProcAddress((HMODULE)w32_perldll_handle, "init_Win32CORE"); #endif if (pfn_init) pfn_init(aTHX); 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 #endif static void ansify_path(void) { size_t len; char *ansi_path; WCHAR *wide_path; WCHAR *wide_dir; /* win32_ansipath() requires Windows 2000 or later */ if (!IsWin2000()) return; /* fetch Unicode version of PATH */ len = 2000; wide_path = win32_malloc(len*sizeof(WCHAR)); while (wide_path) { size_t newlen = GetEnvironmentVariableW(L"PATH", wide_path, len); if (newlen < len) break; len = newlen; wide_path = 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 = 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 = 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 Borland runtime library 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) { HMODULE module; #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 the Borland RTL doesn't. Since we don't * want to be at the vendor's whim on the default, we set * it explicitly here. */ #if !defined(_ALPHA_) && !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(); module = GetModuleHandle("ntdll.dll"); if (module) { *(FARPROC*)&pfnZwQuerySystemInformation = GetProcAddress(module, "ZwQuerySystemInformation"); } module = GetModuleHandle("kernel32.dll"); if (module) { *(FARPROC*)&pfnCreateToolhelp32Snapshot = GetProcAddress(module, "CreateToolhelp32Snapshot"); *(FARPROC*)&pfnProcess32First = GetProcAddress(module, "Process32First"); *(FARPROC*)&pfnProcess32Next = GetProcAddress(module, "Process32Next"); } g_osver.dwOSVersionInfoSize = sizeof(g_osver); GetVersionEx(&g_osver); ansify_path(); } void Perl_win32_term(void) { dTHX; 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) { dTHX; if (sig < SIG_SIZE) { int save_errno = errno; Sighandler_t result = signal(sig, subcode); 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); } /* we use a message filter hook to process thread messages, passing any * messages that we don't process on to the rest of the hook chain * Anyone else writing a message loop that wants to play nicely with perl * should do * CallMsgFilter(&msg, MSGF_***); * between their GetMessage and DispatchMessage calls. */ LRESULT CALLBACK win32_message_filter_proc(int code, WPARAM wParam, LPARAM lParam) { LPMSG pmsg = (LPMSG)lParam; /* we'll process it if code says we're allowed, and it's a thread message */ if (code >= 0 && pmsg->hwnd == NULL && win32_process_message(pmsg->hwnd, pmsg->message, pmsg->wParam, pmsg->lParam)) { return TRUE; } /* XXX: MSDN says that hhk is ignored, but we should really use the * return value from SetWindowsHookEx() in win32_create_message_window(). */ return CallNextHookEx(NULL, code, 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() */ switch(msg) { #ifdef USE_ITHREADS case WM_USER_MESSAGE: { long child = find_pseudo_pid((int)wParam); if (child >= 0) { dTHX; w32_pseudo_child_message_hwnds[child] = (HWND)lParam; return 1; } break; } #endif case WM_USER_KILL: { dTHX; /* 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: { dTHX; /* 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) { HWND hwnd = NULL; /* "message-only" windows have been implemented in Windows 2000 and later. * On earlier versions we'll continue to post messages to a specific * thread and use hwnd==NULL. This is brittle when either an embedding * application or an XS module is also posting messages to hwnd=NULL * because once removed from the queue they cannot be delivered to the * "right" place with DispatchMessage() anymore, as there is no WindowProc * if there is no window handle. */ /* Using HWND_MESSAGE appears to work under Win98, despite MSDN * documentation to the contrary, however, there is some evidence that * there may be problems with the implementation on Win98. As it is not * officially supported we take the cautious route and stick with thread * messages (hwnd == NULL) on platforms prior to Win2k. */ if (IsWin2000()) { win32_create_message_window_class(); hwnd = CreateWindow("PerlMessageWindowClass", "PerlMessageWindow", 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, NULL, NULL); } /* If we din't create a window for any reason, then we'll use thread * messages for our signalling, so we install a hook which * is called by CallMsgFilter in win32_async_check(), or any other * modal loop (e.g. Win32::MsgBox or any other GUI extention, or anything * that use OLE, etc. */ if(!hwnd) { SetWindowsHookEx(WH_MSGFILTER, win32_message_filter_proc, NULL, GetCurrentThreadId()); } return hwnd; } #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. At least on Windows NT and later we * can re-enable Ctrl-C handling by calling SetConsoleCtrlHandler() * with a NULL handler. This is not valid on Windows 9X. */ if (IsWinNT()) 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 */