src/os2/utils.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/os2/utils.cpp
   3 // Purpose:     Various utilities
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     09/17/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/utils.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/intl.h"
  19     #include "wx/log.h"
  20 #endif  //WX_PRECOMP
  21
  22 #include "wx/os2/private.h"
  23 #include "wx/apptrait.h"
  24 #include "wx/filename.h"
  25
  26 #include <ctype.h>
  27 #ifdef __EMX__
  28 #include <dirent.h>
  29 #endif
  30
  31
  32 #include <io.h>
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <errno.h>
  38 #include <stdarg.h>
  39
  40 #define PURE_32
  41
  42 #if defined(__WATCOMC__)
  43 extern "C"
  44 {
  45     #include <upm.h>
  46 }
  47 #elif !defined(__EMX__)
  48     #include <upm.h>
  49     #include <netcons.h>
  50     #include <netbios.h>
  51 #endif
  52
  53 static const wxChar WX_SECTION[] = wxT("wxWidgets");
  54 static const wxChar eHOSTNAME[]  = wxT("HostName");
  55
  56 // For the following functions we SHOULD fill in support
  57 // for Windows-NT (which I don't know) as I assume it begin
  58 // a POSIX Unix (so claims MS) that it has some special
  59 // functions beyond those provided by WinSock
  60
  61 // Get full hostname (eg. DoDo.BSn-Germany.crg.de)
  62 bool wxGetHostName( wxChar* zBuf, int nMaxSize )
  63 {
  64     if (!zBuf) return false;
  65
  66 #if defined(wxUSE_NET_API) && wxUSE_NET_API
  67     char           zServer[256];
  68     char           zComputer[256];
  69     unsigned long  ulLevel = 0;
  70     unsigned char* zBuffer = NULL;
  71     unsigned long  ulBuffer = 256;
  72     unsigned long* pulTotalAvail = NULL;
  73
  74     NetBios32GetInfo( (const unsigned char*)zServer
  75                      ,(const unsigned char*)zComputer
  76                      ,ulLevel
  77                      ,zBuffer
  78                      ,ulBuffer
  79                      ,pulTotalAvail
  80                     );
  81     strcpy(zBuf, zServer);
  82 #else
  83     wxChar*        zSysname;
  84     const wxChar*  zDefaultHost = wxT("noname");
  85
  86     if ((zSysname = wxGetenv(wxT("SYSTEM_NAME"))) == NULL &&
  87             (zSysname = wxGetenv(wxT("HOSTNAME"))) == NULL)
  88     {
  89         ::PrfQueryProfileString( HINI_PROFILE
  90                                 ,(PSZ)WX_SECTION
  91                                 ,(PSZ)eHOSTNAME
  92                                 ,(PSZ)zDefaultHost
  93                                 ,(void*)zBuf
  94                                 ,(ULONG)nMaxSize - 1
  95                                );
  96         zBuf[nMaxSize] = wxT('\0');
  97     }
  98     else
  99     {
 100         wxStrlcpy(zBuf, zSysname, nMaxSize);
 101     }
 102 #endif
 103
 104     return *zBuf ? true : false;
 105 }
 106
 107 // Get user ID e.g. jacs
 108 bool wxGetUserId(wxChar* zBuf, int nType)
 109 {
 110 #if defined(__VISAGECPP__) || defined(__WATCOMC__)
 111     // UPM procs return 0 on success
 112     long lrc = U32ELOCU((PUCHAR)zBuf, (PULONG)&nType);
 113     if (lrc == 0) return true;
 114 #endif
 115     return false;
 116 }
 117
 118 bool wxGetUserName( wxChar* zBuf, int nMaxSize )
 119 {
 120 #ifdef USE_NET_API
 121     wxGetUserId( zBuf, nMaxSize );
 122 #else
 123     wxStrlcpy(zBuf, wxT("Unknown User"), nMaxSize);
 124 #endif
 125     return true;
 126 }
 127
 128 int wxKill(long         lPid,
 129            wxSignal     WXUNUSED(eSig),
 130            wxKillError* WXUNUSED(peError),
 131            int          WXUNUSED(flags))
 132 {
 133     return((int)::DosKillProcess(0, (PID)lPid));
 134 }
 135
 136 //
 137 // Execute a program in an Interactive Shell
 138 //
 139 bool wxShell( const wxString& rCommand )
 140 {
 141     wxChar*     zShell = wxT("CMD.EXE");
 142     wxString    sInputs;
 143     STARTDATA   SData = {0};
 144     PSZ         PgmTitle = "Command Shell";
 145     APIRET      rc;
 146     PID         vPid = 0;
 147     ULONG       ulSessID = 0;
 148     UCHAR       achObjBuf[256] = {0}; //error data if DosStart fails
 149     RESULTCODES vResult;
 150
 151     SData.Length   = sizeof(STARTDATA);
 152     SData.Related  = SSF_RELATED_INDEPENDENT;
 153     SData.FgBg     = SSF_FGBG_FORE;
 154     SData.TraceOpt = SSF_TRACEOPT_NONE;
 155     SData.PgmTitle = PgmTitle;
 156     SData.PgmName  = (char*)zShell;
 157
 158     sInputs = wxT("/C ") + rCommand;
 159     SData.PgmInputs     = (BYTE*)sInputs.wx_str();
 160     SData.TermQ         = 0;
 161     SData.Environment   = 0;
 162     SData.InheritOpt    = SSF_INHERTOPT_SHELL;
 163     SData.SessionType   = SSF_TYPE_WINDOWABLEVIO;
 164     SData.IconFile      = 0;
 165     SData.PgmHandle     = 0;
 166     SData.PgmControl    = SSF_CONTROL_VISIBLE | SSF_CONTROL_MAXIMIZE;
 167     SData.InitXPos      = 30;
 168     SData.InitYPos      = 40;
 169     SData.InitXSize     = 200;
 170     SData.InitYSize     = 140;
 171     SData.Reserved      = 0;
 172     SData.ObjectBuffer  = (char*)achObjBuf;
 173     SData.ObjectBuffLen = (ULONG)sizeof(achObjBuf);
 174
 175     rc = ::DosStartSession(&SData, &ulSessID, &vPid);
 176     if (rc == 0 || rc == 457) // NO_ERROR or SMG_START_IN_BACKGROUND
 177     {
 178         PTIB                            ptib;
 179         PPIB                            ppib;
 180
 181         ::DosGetInfoBlocks(&ptib, &ppib);
 182
 183         ::DosWaitChild( DCWA_PROCESS
 184                        ,DCWW_WAIT
 185                        ,&vResult
 186                        ,&ppib->pib_ulpid
 187                        ,vPid
 188                       );
 189     }
 190     return (rc != 0);
 191 }
 192
 193 // Shutdown or reboot the PC
 194 bool wxShutdown(wxShutdownFlags WXUNUSED(wFlags))
 195 {
 196     // TODO
 197     return false;
 198 }
 199
 200 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 201 wxMemorySize wxGetFreeMemory()
 202 {
 203     void* pMemptr = NULL;
 204     LONG  lSize;
 205     ULONG lMemFlags;
 206     APIRET rc;
 207
 208     lMemFlags = PAG_FREE;
 209     rc = ::DosQueryMem(pMemptr, (PULONG)&lSize, &lMemFlags);
 210     if (rc != 0)
 211         lSize = -1L;
 212     return (wxMemorySize)lSize;
 213 }
 214
 215 // Get Process ID
 216 unsigned long wxGetProcessId()
 217 {
 218     return (unsigned long)getpid();
 219 }
 220
 221 // ----------------------------------------------------------------------------
 222 // env vars
 223 // ----------------------------------------------------------------------------
 224
 225 bool wxGetEnv(const wxString& var, wxString *value)
 226 {
 227     // wxGetenv is defined as getenv()
 228     wxChar *p = wxGetenv((const wxChar *)var);
 229     if ( !p )
 230         return false;
 231
 232     if ( value )
 233     {
 234         *value = p;
 235     }
 236
 237     return true;
 238 }
 239
 240 static bool wxDoSetEnv(const wxString& variable, const char *value)
 241 {
 242 #if defined(HAVE_SETENV)
 243     if ( !value )
 244     {
 245 #ifdef HAVE_UNSETENV
 246         return unsetenv(variable.mb_str()) == 0;
 247 #else
 248         value = wxT(""); // mustn't pass NULL to setenv()
 249 #endif
 250     }
 251     return setenv(variable.mb_str(), value, 1 /* overwrite */) == 0;
 252 #elif defined(HAVE_PUTENV)
 253     wxString s = variable;
 254     if ( value )
 255         s << wxT('=') << value;
 256
 257     // transform to ANSI
 258     const char *p = s.mb_str();
 259
 260     // the string will be free()d by libc
 261     char *buf = (char *)malloc(strlen(p) + 1);
 262     strcpy(buf, p);
 263
 264     return putenv(buf) == 0;
 265 #else // no way to set an env var
 266     wxUnusedVar(variable);
 267     wxUnusedVar(value);
 268     return false;
 269 #endif
 270 }
 271
 272 bool wxSetEnv(const wxString& variable, const wxString& value)
 273 {
 274     return wxDoSetEnv(variable, value.mb_str());
 275 }
 276
 277 bool wxUnsetEnv(const wxString& variable)
 278 {
 279     return wxDoSetEnv(variable, NULL);
 280 }
 281
 282 void wxMilliSleep(
 283   unsigned long                     ulMilliseconds
 284 )
 285 {
 286     ::DosSleep(ulMilliseconds);
 287 }
 288
 289 void wxMicroSleep(
 290   unsigned long                     ulMicroseconds
 291 )
 292 {
 293     ::DosSleep(ulMicroseconds/1000);
 294 }
 295
 296 void wxSleep(
 297   int                               nSecs
 298 )
 299 {
 300     ::DosSleep(1000 * nSecs);
 301 }
 302
 303 // Consume all events until no more left
 304 void wxFlushEvents()
 305 {
 306 //  wxYield();
 307 }
 308
 309 wxString wxGetOsDescription()
 310 {
 311     wxString strVer(wxT("OS/2"));
 312     ULONG ulSysInfo = 0;
 313
 314     if (::DosQuerySysInfo( QSV_VERSION_MINOR,
 315                            QSV_VERSION_MINOR,
 316                            (PVOID)&ulSysInfo,
 317                            sizeof(ULONG)
 318                          ) == 0L )
 319     {
 320         wxString ver;
 321         ver.Printf( wxT(" ver. %d.%d"),
 322                     int(ulSysInfo / 10),
 323                     int(ulSysInfo % 10)
 324                   );
 325         strVer += ver;
 326     }
 327
 328     return strVer;
 329 }
 330
 331 bool wxIsPlatform64Bit()
 332 {
 333     // FIXME: No idea how to test for 64 bit processor
 334     //        (Probably irrelevant anyhow, though).
 335     return false;
 336 }
 337
 338 void wxAppTraits::InitializeGui(unsigned long &WXUNUSED(ulHab))
 339 {
 340 }
 341
 342 void wxAppTraits::TerminateGui(unsigned long WXUNUSED(ulHab))
 343 {
 344 }
 345
 346 wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
 347 {
 348     ULONG                 ulSysInfo = 0;
 349     APIRET                ulrc;
 350
 351     ulrc = ::DosQuerySysInfo( QSV_VERSION_MINOR,
 352                               QSV_VERSION_MINOR,
 353                               (PVOID)&ulSysInfo,
 354                               sizeof(ULONG)
 355                             );
 356
 357     if (ulrc == 0L)
 358     {
 359         if ( verMaj )
 360             *verMaj = ulSysInfo / 10;
 361         if ( verMin )
 362             *verMin = ulSysInfo % 10;
 363     }
 364
 365     return wxOS_OS2;
 366 }
 367
 368
 369 // ---------------------------------------------------------------------------
 370 const wxChar* wxGetHomeDir(
 371   wxString*                         pStr
 372 )
 373 {
 374     wxString&                       rStrDir = *pStr;
 375
 376     // OS/2 has no idea about home,
 377     // so use the working directory instead.
 378     // However, we might have a valid HOME directory,
 379     // as is used on many machines that have unix utilities
 380     // on them, so we should use that, if available.
 381
 382     // 256 was taken from os2def.h
 383 #ifndef MAX_PATH
 384 #  define MAX_PATH  256
 385 #endif
 386
 387     const wxChar *szHome = wxGetenv((wxChar*)"HOME");
 388     if ( szHome == NULL ) {
 389       // we're homeless, use current directory.
 390       rStrDir = wxT(".");
 391     }
 392     else
 393        rStrDir = szHome;
 394
 395     return rStrDir.c_str();
 396 }
 397
 398 wxString wxGetUserHome ( const wxString &rUser )
 399 {
 400     wxChar*    zHome;
 401     wxString   sUser(rUser);
 402
 403     wxString home;
 404
 405 #ifndef __EMX__
 406     if (!sUser.empty())
 407     {
 408         const wxString currentUser = wxGetUserId();
 409
 410         // Guests belong in the temp dir
 411         if ( currentUser == "annonymous" )
 412         {
 413             zHome = wxGetenv(wxT("TMP"));
 414             if ( !zHome )
 415                 zHome = wxGetenv(wxT("TMPDIR"));
 416             if ( !zHome )
 417                 zHome = wxGetenv(wxT("TEMP"));
 418
 419             if ( zHome && *zHome )
 420                 return zHome;
 421         }
 422
 423         if ( sUser == currentUser )
 424             sUser.clear();
 425     }
 426 #endif
 427     if (sUser.empty())
 428     {
 429         if ((zHome = wxGetenv(wxT("HOME"))) != NULL)
 430         {
 431             home = zHome;
 432             home.Replace("/", "\\");
 433         }
 434     }
 435
 436     return home;
 437 }
 438
 439 bool wxGetDiskSpace(const wxString& path,
 440                     wxDiskspaceSize_t *pTotal,
 441                     wxDiskspaceSize_t *pFree)
 442 {
 443     if (path.empty())
 444         return false;
 445
 446     wxFileName fn(path);
 447     FSALLOCATE fsaBuf = {0};
 448     APIRET rc = NO_ERROR;
 449     ULONG disknum = 0;
 450
 451     fn.MakeAbsolute();
 452
 453     if (wxDirExists(fn.GetFullPath()) == false)
 454         return false;
 455
 456     disknum = wxToupper(fn.GetVolume().GetChar(0)) - wxT('A') + 1;
 457
 458     rc = ::DosQueryFSInfo(disknum,             // 1 = A, 2 = B, 3 = C, ...
 459                           FSIL_ALLOC,          // allocation info
 460                           (PVOID)&fsaBuf,
 461                           sizeof(FSALLOCATE));
 462
 463     if (rc != NO_ERROR)
 464         return false;
 465     else
 466     {
 467         if(pTotal)
 468         {
 469            // to try to avoid 32-bit overflow, let's not multiply right away
 470             // (num of alloc units)
 471             *pTotal = fsaBuf.cUnit;
 472             // * (num of sectors per alloc unit) * (num of bytes per sector)
 473             (*pTotal) *= fsaBuf.cSectorUnit * fsaBuf.cbSector;
 474         }
 475         if(pFree)
 476         {
 477             *pFree = fsaBuf.cUnitAvail;
 478             (*pFree) *= fsaBuf.cSectorUnit * fsaBuf.cbSector;
 479         }
 480         return true;
 481     }
 482 }
 483
 484 wxString wxPMErrorToStr(ERRORID vError)
 485 {
 486     wxString sError;
 487
 488     //
 489     // Remove the high order byte -- it is useless
 490     //
 491     vError &= 0x0000ffff;
 492     switch(vError)
 493     {
 494         case PMERR_INVALID_HWND:
 495             sError = wxT("Invalid window handle specified");
 496             break;
 497
 498         case PMERR_INVALID_FLAG:
 499             sError = wxT("Invalid flag bit set");
 500             break;
 501
 502         case PMERR_NO_MSG_QUEUE:
 503             sError = wxT("No message queue available");
 504             break;
 505
 506         case PMERR_INVALID_PARM:
 507             sError = wxT("Parameter contained invalid data");
 508             break;
 509
 510         case PMERR_INVALID_PARAMETERS:
 511             sError = wxT("Parameter value is out of range");
 512             break;
 513
 514         case PMERR_PARAMETER_OUT_OF_RANGE:
 515             sError = wxT("Parameter value is out of range");
 516             break;
 517
 518         case PMERR_INVALID_INTEGER_ATOM:
 519             sError = wxT("Not a valid atom");
 520             break;
 521
 522         case PMERR_INVALID_HATOMTBL:
 523             sError = wxT("Atom table handle is invalid");
 524             break;
 525
 526         case PMERR_INVALID_ATOM_NAME:
 527             sError = wxT("Not a valid atom name");
 528             break;
 529
 530         case PMERR_ATOM_NAME_NOT_FOUND:
 531             sError = wxT("Valid name format, but cannot find name in atom table");
 532             break;
 533
 534         case PMERR_INV_HPS:
 535             sError = wxT("PMERR_INV_HPS");
 536             break;
 537
 538         case PMERR_PS_BUSY:
 539             sError = wxT("PMERR_PS_BUSY");
 540             break;
 541
 542         case PMERR_INV_PRIMITIVE_TYPE:
 543             sError = wxT("PMERR_INV_PRIMITIVE_TYPE");
 544             break;
 545
 546         case PMERR_UNSUPPORTED_ATTR:
 547             sError = wxT("PMERR_UNSUPPORTED_ATTR");
 548             break;
 549
 550         case PMERR_INV_COLOR_ATTR:
 551             sError = wxT("PMERR_INV_COLOR_ATTR");
 552             break;
 553
 554         case PMERR_INV_BACKGROUND_COL_ATTR:
 555             sError = wxT("PMERR_INV_BACKGROUND_COL_ATTR");
 556             break;
 557
 558         case PMERR_INV_MIX_ATTR:
 559             sError = wxT("PMERR_INV_MIX_ATTR");
 560             break;
 561
 562         case PMERR_INV_LINE_WIDTH_ATTR:
 563             sError = wxT("PMERR_INV_LINE_WIDTH_ATTR");
 564             break;
 565
 566         case PMERR_INV_GEOM_LINE_WIDTH_ATTR:
 567             sError = wxT("PMERR_INV_GEOM_LINE_WIDTH_ATTR");
 568             break;
 569
 570         case PMERR_INV_LINE_TYPE_ATTR:
 571             sError = wxT("PMERR_INV_LINE_TYPE_ATTR");
 572             break;
 573
 574         case PMERR_INV_LINE_END_ATTR:
 575             sError = wxT("PMERR_INV_LINE_END_ATTR");
 576             break;
 577
 578         case PMERR_INV_LINE_JOIN_ATTR:
 579             sError = wxT("PMERR_INV_LINE_JOIN_ATTR");
 580             break;
 581
 582         case PMERR_INV_CHAR_SET_ATTR:
 583             sError = wxT("PMERR_INV_CHAR_SET_ATTR");
 584             break;
 585
 586         case PMERR_INV_CHAR_MODE_ATTR:
 587             sError = wxT("PMERR_INV_CHAR_MODE_ATTR");
 588             break;
 589
 590         case PMERR_INV_CHAR_DIRECTION_ATTR:
 591             sError = wxT("PMERR_INV_CHAR_DIRECTION_ATTR");
 592             break;
 593
 594         case PMERR_INV_CHAR_SHEAR_ATTR:
 595             sError = wxT("PMERR_INV_CHAR_SHEAR_ATTR");
 596             break;
 597
 598         case PMERR_INV_CHAR_ANGLE_ATTR:
 599             sError = wxT("PMERR_INV_CHAR_ANGLE_ATTR");
 600             break;
 601
 602         case PMERR_INV_MARKER_SET_ATTR:
 603             sError = wxT("PMERR_INV_MARKER_SET_ATTR");
 604             break;
 605
 606         case PMERR_INV_MARKER_SYMBOL_ATTR:
 607             sError = wxT("PMERR_INV_MARKER_SYMBOL_ATTR");
 608             break;
 609
 610         case PMERR_INV_PATTERN_SET_ATTR:
 611             sError = wxT("PMERR_INV_PATTERN_SET_ATTR");
 612             break;
 613
 614         case PMERR_INV_PATTERN_ATTR:
 615             sError = wxT("PMERR_INV_PATTERN_ATTR");
 616             break;
 617
 618         case PMERR_INV_COORDINATE:
 619             sError = wxT("PMERR_INV_COORDINATE");
 620             break;
 621
 622         case PMERR_UNSUPPORTED_ATTR_VALUE:
 623             sError = wxT("PMERR_UNSUPPORTED_ATTR_VALUE");
 624             break;
 625
 626         case PMERR_INV_PATTERN_SET_FONT:
 627             sError = wxT("PMERR_INV_PATTERN_SET_FONT");
 628             break;
 629
 630         case PMERR_HUGE_FONTS_NOT_SUPPORTED:
 631             sError = wxT("PMERR_HUGE_FONTS_NOT_SUPPORTED");
 632             break;
 633
 634         default:
 635             sError = wxT("Unknown error");
 636     }
 637     return sError;
 638 } // end of wxPMErrorToStr
 639
 640 // replacement for implementation in unix/utilsunx.cpp,
 641 // to be used by all X11 based ports.
 642 struct wxEndProcessData;
 643
 644 void wxHandleProcessTermination(wxEndProcessData *WXUNUSED(proc_data))
 645 {
 646     // For now, just do nothing. To be filled in as needed.
 647 }