# unix.cpp

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    00001 /* $Id: unix.cpp 19857 2010-05-18 21:44:47Z rubidium $ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "../../stdafx.h"
    00013 #include "../../textbuf_gui.h"
    00014 #include "../../functions.h"
    00015 #include "../../crashlog.h"
    00016 #include "../../core/random_func.hpp"
    00017
    00018
    00019 #include <dirent.h>
    00020 #include <unistd.h>
    00021 #include <sys/stat.h>
    00022 #include <time.h>
    00023 #include <signal.h>
    00024
    00025 #ifdef __APPLE__
    00026   #include <sys/mount.h>
    00027 #elif (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) || defined(__GLIBC__)
    00028   #define HAS_STATVFS
    00029 #endif
    00030
    00031 #ifdef HAS_STATVFS
    00032 #include <sys/statvfs.h>
    00033 #endif
    00034
    00035
    00036 #ifdef __MORPHOS__
    00037 #include <exec/types.h>
    00038 ULONG __stack = (1024*1024)*2; // maybe not that much is needed actually ;)
    00039
    00040 /* The system supplied definition of SIG_IGN does not match */
    00041 #undef SIG_IGN
    00042 #define SIG_IGN (void (*)(int))1
    00043 #endif /* __MORPHOS__ */
    00044
    00045 #ifdef __AMIGA__
    00046 #warning add stack symbol to avoid that user needs to set stack manually (tokai)
    00047 // ULONG __stack =
    00048 #endif
    00049
    00050 #if defined(__APPLE__)
    00051   #if defined(WITH_SDL)
    00052     /* the mac implementation needs this file included in the same file as main() */
    00053     #include <SDL.h>
    00054   #endif
    00055 #endif
    00056
    00057 bool FiosIsRoot(const char *path)
    00058 {
    00059 #if !defined(__MORPHOS__) && !defined(__AMIGAOS__)
    00060   return path[1] == '\0';
    00061 #else
    00062   /* On MorphOS or AmigaOS paths look like: "Volume:directory/subdirectory" */
    00063   const char *s = strchr(path, ':');
    00064   return s != NULL && s[1] == '\0';
    00065 #endif
    00066 }
    00067
    00068 void FiosGetDrives()
    00069 {
    00070   return;
    00071 }
    00072
    00073 bool FiosGetDiskFreeSpace(const char *path, uint64 *tot)
    00074 {
    00075   uint64 free = 0;
    00076
    00077 #ifdef __APPLE__
    00078   struct statfs s;
    00079
    00080   if (statfs(path, &s) != 0) return false;
    00081   free = (uint64)s.f_bsize * s.f_bavail;
    00082 #elif defined(HAS_STATVFS)
    00083   struct statvfs s;
    00084
    00085   if (statvfs(path, &s) != 0) return false;
    00086   free = (uint64)s.f_frsize * s.f_bavail;
    00087 #endif
    00088   if (tot != NULL) *tot = free;
    00089   return true;
    00090 }
    00091
    00092 bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb)
    00093 {
    00094   char filename[MAX_PATH];
    00095   int res;
    00096 #if defined(__MORPHOS__) || defined(__AMIGAOS__)
    00097   /* On MorphOS or AmigaOS paths look like: "Volume:directory/subdirectory" */
    00098   if (FiosIsRoot(path)) {
    00099     res = snprintf(filename, lengthof(filename), "%s:%s", path, ent->d_name);
    00100   } else // XXX - only next line!
    00101 #else
    00102   assert(path[strlen(path) - 1] == PATHSEPCHAR);
    00103   if (strlen(path) > 2) assert(path[strlen(path) - 2] != PATHSEPCHAR);
    00104 #endif
    00105   res = snprintf(filename, lengthof(filename), "%s%s", path, ent->d_name);
    00106
    00107   /* Could we fully concatenate the path and filename? */
    00108   if (res >= (int)lengthof(filename) || res < 0) return false;
    00109
    00110   return stat(filename, sb) == 0;
    00111 }
    00112
    00113 bool FiosIsHiddenFile(const struct dirent *ent)
    00114 {
    00115   return ent->d_name[0] == '.';
    00116 }
    00117
    00118 #ifdef WITH_ICONV
    00119
    00120 #include <iconv.h>
    00121 #include <errno.h>
    00122 #include "../../debug.h"
    00123 #include "../../string_func.h"
    00124
    00125 const char *GetCurrentLocale(const char *param);
    00126
    00127 #define INTERNALCODE "UTF-8"
    00128
    00132 static const char *GetLocalCode()
    00133 {
    00134 #if defined(__APPLE__)
    00135   return "UTF-8-MAC";
    00136 #else
    00137   /* Strip locale (eg en_US.UTF-8) to only have UTF-8 */
    00138   const char *locale = GetCurrentLocale("LC_CTYPE");
    00139   if (locale != NULL) locale = strchr(locale, '.');
    00140
    00141   return (locale == NULL) ? "" : locale + 1;
    00142 #endif
    00143 }
    00144
    00149 static const char *convert_tofrom_fs(iconv_t convd, const char *name)
    00150 {
    00151   static char buf[1024];
    00152   /* Work around buggy iconv implementation where inbuf is wrongly typed as
    00153    * non-const. Correct implementation is at
    00154    * http://www.opengroup.org/onlinepubs/007908799/xsh/iconv.html */
    00155 #ifdef HAVE_BROKEN_ICONV
    00156   char *inbuf = const_cast<char*>(name);
    00157 #else
    00158   const char *inbuf = name;
    00159 #endif
    00160
    00161   char *outbuf  = buf;
    00162   size_t outlen = sizeof(buf) - 1;
    00163   size_t inlen  = strlen(name);
    00164
    00165   strecpy(outbuf, name, outbuf + outlen);
    00166
    00167   iconv(convd, NULL, NULL, NULL, NULL);
    00168   if (iconv(convd, &inbuf, &inlen, &outbuf, &outlen) == (size_t)(-1)) {
    00169     DEBUG(misc, 0, "[iconv] error converting '%s'. Errno %d", name, errno);
    00170   }
    00171
    00172   *outbuf = '\0';
    00173   /* FIX: invalid characters will abort conversion, but they shouldn't occur? */
    00174   return buf;
    00175 }
    00176
    00180 const char *OTTD2FS(const char *name)
    00181 {
    00182   static iconv_t convd = (iconv_t)(-1);
    00183
    00184   if (convd == (iconv_t)(-1)) {
    00185     const char *env = GetLocalCode();
    00186     convd = iconv_open(env, INTERNALCODE);
    00187     if (convd == (iconv_t)(-1)) {
    00188       DEBUG(misc, 0, "[iconv] conversion from codeset '%s' to '%s' unsupported", INTERNALCODE, env);
    00189       return name;
    00190     }
    00191   }
    00192
    00193   return convert_tofrom_fs(convd, name);
    00194 }
    00195
    00199 const char *FS2OTTD(const char *name)
    00200 {
    00201   static iconv_t convd = (iconv_t)(-1);
    00202
    00203   if (convd == (iconv_t)(-1)) {
    00204     const char *env = GetLocalCode();
    00205     convd = iconv_open(INTERNALCODE, env);
    00206     if (convd == (iconv_t)(-1)) {
    00207       DEBUG(misc, 0, "[iconv] conversion from codeset '%s' to '%s' unsupported", env, INTERNALCODE);
    00208       return name;
    00209     }
    00210   }
    00211
    00212   return convert_tofrom_fs(convd, name);
    00213 }
    00214
    00215 #else
    00216 const char *FS2OTTD(const char *name) {return name;}
    00217 const char *OTTD2FS(const char *name) {return name;}
    00218 #endif /* WITH_ICONV */
    00219
    00220 void ShowInfo(const char *str)
    00221 {
    00222   fprintf(stderr, "%s\n", str);
    00223 }
    00224
    00225 #if !defined(__APPLE__)
    00226 void ShowOSErrorBox(const char *buf, bool system)
    00227 {
    00228   /* All unix systems, except OSX. Only use escape codes on a TTY. */
    00229   if (isatty(fileno(stderr))) {
    00230     fprintf(stderr, "\033[1;31mError: %s\033[0;39m\n", buf);
    00231   } else {
    00232     fprintf(stderr, "Error: %s\n", buf);
    00233   }
    00234 }
    00235 #endif
    00236
    00237 #ifdef WITH_COCOA
    00238 void cocoaSetupAutoreleasePool();
    00239 void cocoaReleaseAutoreleasePool();
    00240 #endif
    00241
    00242 int CDECL main(int argc, char *argv[])
    00243 {
    00244   int ret;
    00245
    00246 #ifdef WITH_COCOA
    00247   cocoaSetupAutoreleasePool();
    00248   /* This is passed if we are launched by double-clicking */
    00249   if (argc >= 2 && strncmp(argv[1], "-psn", 4) == 0) {
    00250     argv[1] = NULL;
    00251     argc = 1;
    00252   }
    00253 #endif
    00254   CrashLog::InitialiseCrashLog();
    00255
    00256   SetRandomSeed(time(NULL));
    00257
    00258   signal(SIGPIPE, SIG_IGN);
    00259
    00260   ret = ttd_main(argc, argv);
    00261
    00262 #ifdef WITH_COCOA
    00263   cocoaReleaseAutoreleasePool();
    00264 #endif
    00265
    00266   return ret;
    00267 }
    00268
    00269 #ifndef WITH_COCOA
    00270 bool GetClipboardContents(char *buffer, size_t buff_len)
    00271 {
    00272   return false;
    00273 }
    00274 #endif
    00275
    00276
    00277 /* multi os compatible sleep function */
    00278
    00279 #ifdef __AMIGA__
    00280 /* usleep() implementation */
    00281 # include <devices/timer.h>
    00282 # include <dos/dos.h>
    00283
    00284   extern struct Device      *TimerBase    = NULL;
    00285   extern struct MsgPort     *TimerPort    = NULL;
    00286   extern struct timerequest *TimerRequest = NULL;
    00287 #endif /* __AMIGA__ */
    00288
    00289 void CSleep(int milliseconds)
    00290 {
    00291   #if defined(PSP)
    00292     sceKernelDelayThread(milliseconds * 1000);
    00293   #elif defined(__BEOS__)
    00294     snooze(milliseconds * 1000);
    00295   #elif defined(__AMIGA__)
    00296   {
    00297     ULONG signals;
    00298     ULONG TimerSigBit = 1 << TimerPort->mp_SigBit;
    00299
    00300     /* send IORequest */
    00301     TimerRequest->tr_node.io_Command = TR_ADDREQUEST;
    00302     TimerRequest->tr_time.tv_secs    = (milliseconds * 1000) / 1000000;
    00303     TimerRequest->tr_time.tv_micro   = (milliseconds * 1000) % 1000000;
    00304     SendIO((struct IORequest *)TimerRequest);
    00305
    00306     if (!((signals = Wait(TimerSigBit | SIGBREAKF_CTRL_C)) & TimerSigBit) ) {
    00307       AbortIO((struct IORequest *)TimerRequest);
    00308     }
    00309     WaitIO((struct IORequest *)TimerRequest);
    00310   }
    00311   #else
    00312     usleep(milliseconds * 1000);
    00313   #endif
    00314 }