src/gtk/utilsgtk.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        utils.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 //#ifdef __GNUG__
  13 //#pragma implementation "utils.h"
  14 //#endif
  15
  16 #include "wx/utils.h"
  17 #include "wx/string.h"
  18
  19 #include <stdarg.h>
  20 #include <dirent.h>
  21 #include <string.h>
  22 #include <sys/stat.h>
  23 #include <sys/types.h>
  24 #include <unistd.h>
  25 #include <sys/wait.h>
  26 #include <pwd.h>
  27 #include <errno.h>
  28 #include <netdb.h>
  29
  30 #ifdef __SVR4__
  31 #include <sys/systeminfo.h>
  32 #endif
  33
  34 //------------------------------------------------------------------------
  35 // misc.
  36 //------------------------------------------------------------------------
  37
  38 void wxBell(void)
  39 {
  40   gdk_beep();
  41 };
  42
  43 //------------------------------------------------------------------------
  44 // user and home routines
  45 //------------------------------------------------------------------------
  46
  47 char* wxGetHomeDir( char *dest )
  48 {
  49   wxString tmp = wxGetUserHome( wxString() );
  50   if (tmp.IsNull())
  51     strcpy( wxBuffer, "/" );
  52   else
  53     strcpy( wxBuffer, tmp );
  54   if (dest) strcpy( dest, WXSTRINGCAST tmp );
  55   return wxBuffer;
  56 };
  57
  58 char *wxGetUserHome( const wxString &user )
  59 {
  60   struct passwd *who = NULL;
  61
  62   if (user.IsNull() || (user== ""))
  63   {
  64         register char *ptr;
  65
  66         if ((ptr = getenv("HOME")) != NULL)
  67             return ptr;
  68         if ((ptr = getenv("USER")) != NULL
  69         || (ptr = getenv("LOGNAME")) != NULL) {
  70             who = getpwnam(ptr);
  71         }
  72         // We now make sure the the user exists!
  73         if (who == NULL)
  74             who = getpwuid(getuid());
  75   }
  76   else
  77     who = getpwnam (user);
  78
  79   return who ? who->pw_dir : (char*)NULL;
  80 };
  81
  82 //------------------------------------------------------------------------
  83 // id routines
  84 //------------------------------------------------------------------------
  85
  86 bool wxGetHostName(char *buf, int sz)
  87 {
  88     *buf = '\0';
  89 #if defined(__SVR4__) && !defined(__sgi)
  90     return (sysinfo(SI_HOSTNAME, buf, sz) != -1);
  91 #else /* BSD Sockets */
  92     char name[255];
  93     struct hostent *h;
  94     // Get hostname
  95     if (gethostname(name, sizeof(name)/sizeof(char)-1) == -1)
  96         return FALSE;
  97     // Get official full name of host
  98     strncpy(buf, (h=gethostbyname(name))!=NULL ? h->h_name : name, sz-1);
  99     return TRUE;
 100 #endif
 101 }
 102
 103 bool wxGetUserId(char *buf, int sz)
 104 {
 105     struct passwd *who;
 106
 107     *buf = '\0';
 108     if ((who = getpwuid(getuid ())) != NULL) {
 109         strncpy (buf, who->pw_name, sz-1);
 110         return TRUE;
 111     }
 112     return FALSE;
 113 }
 114
 115 bool wxGetUserName(char *buf, int sz)
 116 {
 117     struct passwd *who;
 118
 119     *buf = '\0';
 120     if ((who = getpwuid (getuid ())) != NULL) {
 121         strncpy (buf, who->pw_gecos, sz - 1);
 122         return TRUE;
 123     }
 124     return FALSE;
 125 }
 126
 127 //------------------------------------------------------------------------
 128 // error and debug output routines
 129 //------------------------------------------------------------------------
 130
 131 void wxDebugMsg( const char *format, ... )
 132 {
 133   va_list ap;
 134   va_start( ap, format );
 135   vfprintf( stderr, format, ap );
 136   fflush( stderr );
 137   va_end(ap);
 138 };
 139
 140 void wxError( const wxString &msg, const wxString &title )
 141 {
 142   fprintf( stderr, "Error " );
 143   if (!title.IsNull()) fprintf( stderr, "%s ", WXSTRINGCAST(title) );
 144   if (!msg.IsNull()) fprintf( stderr, ": %s", WXSTRINGCAST(msg) );
 145   fprintf( stderr, ".\n" );
 146 };
 147
 148 void wxFatalError( const wxString &msg, const wxString &title )
 149 {
 150   fprintf( stderr, "Error " );
 151   if (!title.IsNull()) fprintf( stderr, "%s ", WXSTRINGCAST(title) );
 152   if (!msg.IsNull()) fprintf( stderr, ": %s", WXSTRINGCAST(msg) );
 153   fprintf( stderr, ".\n" );
 154   exit(1);
 155 };
 156
 157 //------------------------------------------------------------------------
 158 // directory routines
 159 //------------------------------------------------------------------------
 160
 161 bool wxDirExists( const wxString& dir )
 162 {
 163   char buf[500];
 164   strcpy( buf, WXSTRINGCAST(dir) );
 165   struct stat sbuf;
 166   return ((stat(buf, &sbuf) != -1) && S_ISDIR(sbuf.st_mode) ? TRUE : FALSE);
 167 };
 168
 169 //------------------------------------------------------------------------
 170 // wild character routines
 171 //------------------------------------------------------------------------
 172
 173 bool wxIsWild( const wxString& pattern )
 174 {
 175   wxString tmp = pattern;
 176   char *pat = WXSTRINGCAST(tmp);
 177     while (*pat) {
 178         switch (*pat++) {
 179         case '?': case '*': case '[': case '{':
 180             return TRUE;
 181         case '\\':
 182             if (!*pat++)
 183                 return FALSE;
 184         }
 185     }
 186     return FALSE;
 187 };
 188
 189
 190 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
 191 {
 192   wxString tmp1 = pat;
 193   char *pattern = WXSTRINGCAST(tmp1);
 194   wxString tmp2 = text;
 195   char *str = WXSTRINGCAST(tmp2);
 196     char c;
 197     char *cp;
 198     bool done = FALSE, ret_code, ok;
 199     // Below is for vi fans
 200     const char OB = '{', CB = '}';
 201
 202     // dot_special means '.' only matches '.'
 203     if (dot_special && *str == '.' && *pattern != *str)
 204         return FALSE;
 205
 206     while ((*pattern != '\0') && (!done)
 207     && (((*str=='\0')&&((*pattern==OB)||(*pattern=='*')))||(*str!='\0'))) {
 208         switch (*pattern) {
 209         case '\\':
 210             pattern++;
 211             if (*pattern != '\0')
 212                 pattern++;
 213             break;
 214         case '*':
 215             pattern++;
 216             ret_code = FALSE;
 217             while ((*str!='\0')
 218             && (!(ret_code=wxMatchWild(pattern, str++, FALSE))))
 219                 /*loop*/;
 220             if (ret_code) {
 221                 while (*str != '\0')
 222                     str++;
 223                 while (*pattern != '\0')
 224                     pattern++;
 225             }
 226             break;
 227         case '[':
 228             pattern++;
 229           repeat:
 230             if ((*pattern == '\0') || (*pattern == ']')) {
 231                 done = TRUE;
 232                 break;
 233             }
 234             if (*pattern == '\\') {
 235                 pattern++;
 236                 if (*pattern == '\0') {
 237                     done = TRUE;
 238                     break;
 239                 }
 240             }
 241             if (*(pattern + 1) == '-') {
 242                 c = *pattern;
 243                 pattern += 2;
 244                 if (*pattern == ']') {
 245                     done = TRUE;
 246                     break;
 247                 }
 248                 if (*pattern == '\\') {
 249                     pattern++;
 250                     if (*pattern == '\0') {
 251                         done = TRUE;
 252                         break;
 253                     }
 254                 }
 255                 if ((*str < c) || (*str > *pattern)) {
 256                     pattern++;
 257                     goto repeat;
 258                 }
 259             } else if (*pattern != *str) {
 260                 pattern++;
 261                 goto repeat;
 262             }
 263             pattern++;
 264             while ((*pattern != ']') && (*pattern != '\0')) {
 265                 if ((*pattern == '\\') && (*(pattern + 1) != '\0'))
 266                     pattern++;
 267                 pattern++;
 268             }
 269             if (*pattern != '\0') {
 270                 pattern++, str++;
 271             }
 272             break;
 273         case '?':
 274             pattern++;
 275             str++;
 276             break;
 277         case OB:
 278             pattern++;
 279             while ((*pattern != CB) && (*pattern != '\0')) {
 280                 cp = str;
 281                 ok = TRUE;
 282                 while (ok && (*cp != '\0') && (*pattern != '\0')
 283                 &&  (*pattern != ',') && (*pattern != CB)) {
 284                     if (*pattern == '\\')
 285                         pattern++;
 286                     ok = (*pattern++ == *cp++);
 287                 }
 288                 if (*pattern == '\0') {
 289                     ok = FALSE;
 290                     done = TRUE;
 291                     break;
 292                 } else if (ok) {
 293                     str = cp;
 294                     while ((*pattern != CB) && (*pattern != '\0')) {
 295                         if (*++pattern == '\\') {
 296                             if (*++pattern == CB)
 297                                 pattern++;
 298                         }
 299                     }
 300                 } else {
 301                     while (*pattern!=CB && *pattern!=',' && *pattern!='\0') {
 302                         if (*++pattern == '\\') {
 303                             if (*++pattern == CB || *pattern == ',')
 304                                 pattern++;
 305                         }
 306                     }
 307                 }
 308                 if (*pattern != '\0')
 309                     pattern++;
 310             }
 311             break;
 312         default:
 313             if (*str == *pattern) {
 314                 str++, pattern++;
 315             } else {
 316                 done = TRUE;
 317             }
 318         }
 319     }
 320     while (*pattern == '*')
 321         pattern++;
 322     return ((*str == '\0') && (*pattern == '\0'));
 323 };
 324
 325 //------------------------------------------------------------------------
 326 // subprocess routines
 327 //------------------------------------------------------------------------
 328
 329 long wxExecute( char **argv, bool Async )
 330 {
 331     if (*argv == NULL)
 332         return FALSE;
 333
 334     /* fork the process */
 335 #if defined(sun) || defined(__ultrix) || defined(__bsdi__)
 336     pid_t pid = vfork();
 337 #else
 338     pid_t pid = fork();
 339 #endif
 340     if (pid == -1) {
 341         perror ("fork failed");
 342         return FALSE;
 343     } else if (pid == 0) {
 344         /* child */
 345 #ifdef _AIX
 346         execvp ((const char *)*argv, (const char **)argv);
 347 #else
 348         execvp (*argv, argv);
 349 #endif
 350         if (errno == ENOENT)
 351             wxError("command not found", *argv);
 352         else
 353             perror (*argv);
 354         wxError("could not execute", *argv);
 355         _exit (-1);
 356     }
 357
 358     // Code below is NOT really acceptable!
 359     // One should NEVER use wait under X
 360     // Ideas? A Sleep idle callback?
 361     // WARNING: WARNING: WARNING: WARNING:
 362     // The CODE BELOW IS BAD BAD BAD BAD!
 363     if (Async) {
 364         int status;
 365 /*
 366         wxSleep(2);             // Give a little time
 367 */
 368 #if !defined(DG) && \
 369     !defined(__AIX__) && \
 370     !defined(__xlC__) && \
 371     !defined(__SVR4__) && \
 372     !defined(__SUN__) && \
 373     !defined(__ALPHA__) && \
 374     !defined(__SGI__) && \
 375     !defined(__HPUX__) && \
 376     !defined(__SUNPRO_CC) && \
 377     !defined(__FreeBSD__)
 378         while (wait((union wait*)&status) != pid)
 379 #else
 380         while (wait(&status) != pid)
 381 #endif
 382       {};
 383 /*
 384             wxSleep(3); // 3 sec?
 385 */
 386     };
 387     return TRUE;
 388 };
 389
 390 long wxExecute( const wxString& command, bool Async )
 391 {
 392     if (command.IsNull() || command == "") return FALSE;
 393
 394     int argc = 0;
 395     char *argv[127];
 396     char tmp[1024];
 397     const char *IFS = " \t\n";
 398
 399     strncpy (tmp, command, sizeof(tmp) / sizeof(char) - 1);
 400     tmp[sizeof (tmp) / sizeof (char) - 1] = '\0';
 401     argv[argc++] = strtok (tmp, IFS);
 402     while ((argv[argc++] = strtok(NULL, IFS)) != NULL)
 403         /* loop */ ;
 404     return wxExecute(argv, Async);
 405 };
 406