src/unix/stdpaths.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        unix/stdpaths.cpp
   3 // Purpose:     wxStandardPaths implementation for Unix & OpenVMS systems
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     2004-10-19
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
   9 // License:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_STDPATHS
  28
  29 #include "wx/stdpaths.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/utils.h"
  33 #endif //WX_PRECOMP
  34
  35 #include "wx/filename.h"
  36
  37 #if defined( __LINUX__ ) || defined( __VMS )
  38     #include <unistd.h>
  39 #endif
  40
  41 // ============================================================================
  42 // common VMS/Unix part of wxStandardPaths implementation
  43 // ============================================================================
  44
  45 void wxStandardPaths::SetInstallPrefix(const wxString& prefix)
  46 {
  47     m_prefix = prefix;
  48 }
  49
  50 wxString wxStandardPaths::GetUserConfigDir() const
  51 {
  52     return wxFileName::GetHomeDir();
  53 }
  54
  55 // ============================================================================
  56 // wxStandardPaths implementation for VMS
  57 // ============================================================================
  58
  59 #ifdef __VMS
  60
  61 wxString wxStandardPaths::GetInstallPrefix() const
  62 {
  63     if ( m_prefix.empty() )
  64     {
  65         wx_const_cast(wxStandardPaths *, this)->m_prefix = wxT("/sys$system");
  66     }
  67
  68     return m_prefix;
  69 }
  70
  71 wxString wxStandardPaths::GetConfigDir() const
  72 {
  73    return _T("/sys$manager");
  74 }
  75
  76 wxString wxStandardPaths::GetDataDir() const
  77 {
  78    return AppendAppName(GetInstallPrefix() + _T("/sys$share"));
  79 }
  80
  81 wxString wxStandardPaths::GetLocalDataDir() const
  82 {
  83    return AppendAppName(_T("/sys$manager"));
  84 }
  85
  86 wxString wxStandardPaths::GetUserDataDir() const
  87 {
  88    return wxFileName::GetHomeDir();
  89 }
  90
  91 wxString wxStandardPaths::GetPluginsDir() const
  92 {
  93     return wxString(); // TODO: this is wrong, it should return something
  94 }
  95
  96 wxString
  97 wxStandardPaths::GetLocalizedResourcesDir(const wxChar *lang,
  98                                           ResourceCat category) const
  99 {
 100     return wxStandardPathsBase::GetLocalizedResourcesDir(lang, category);
 101 }
 102
 103 #else // !__VMS
 104
 105 // ============================================================================
 106 // wxStandardPaths implementation for Unix
 107 // ============================================================================
 108
 109 void wxStandardPaths::DetectPrefix()
 110 {
 111 #ifdef __LINUX__
 112     // under Linux, we can try to infer the prefix from the location of the
 113     // executable
 114     wxString exeStr;
 115
 116     char buf[4096];
 117     int result = readlink("/proc/self/exe", buf, WXSIZEOF(buf) - sizeof(char));
 118     if ( result != -1 )
 119     {
 120         buf[result] = '\0'; // readlink() doesn't NUL-terminate the buffer
 121
 122         // if the /proc/self/exe symlink has been dropped by the kernel for
 123         // some reason, then readlink() could also return success but
 124         // "(deleted)" as link destination...
 125         if ( strcmp(buf, "(deleted)") != 0 )
 126             exeStr = wxString(buf, wxConvLibc);
 127     }
 128
 129     if ( exeStr.empty() )
 130     {
 131         // UPX-specific hack: when using UPX on linux, the kernel will drop the
 132         // /proc/self/exe link; in this case we try to look for a special
 133         // environment variable called "   " which is created by UPX to save
 134         // /proc/self/exe contents. See
 135         //      http://sf.net/tracker/?func=detail&atid=309863&aid=1565357&group_id=9863
 136         // for more information about this issue.
 137         wxGetEnv(wxT("   "), &exeStr);
 138     }
 139
 140     if ( !exeStr.empty() )
 141     {
 142         // consider that we're in the last "bin" subdirectory of our prefix
 143         size_t pos = exeStr.rfind(wxT("/bin/"));
 144         if ( pos != wxString::npos )
 145             m_prefix.assign(exeStr, 0, pos);
 146     }
 147 #endif // __LINUX__
 148
 149     if ( m_prefix.empty() )
 150     {
 151         m_prefix = wxT("/usr/local");
 152     }
 153 }
 154
 155 wxString wxStandardPaths::GetInstallPrefix() const
 156 {
 157     if ( m_prefix.empty() )
 158     {
 159         wxStandardPaths *pathPtr = wx_const_cast(wxStandardPaths *, this);
 160         pathPtr->DetectPrefix();
 161     }
 162
 163     return m_prefix;
 164 }
 165
 166 // ----------------------------------------------------------------------------
 167 // public functions
 168 // ----------------------------------------------------------------------------
 169
 170 wxString wxStandardPaths::GetConfigDir() const
 171 {
 172    return _T("/etc");
 173 }
 174
 175 wxString wxStandardPaths::GetDataDir() const
 176 {
 177    return AppendAppName(GetInstallPrefix() + _T("/share"));
 178 }
 179
 180 wxString wxStandardPaths::GetLocalDataDir() const
 181 {
 182    return AppendAppName(_T("/etc"));
 183 }
 184
 185 wxString wxStandardPaths::GetUserDataDir() const
 186 {
 187    return AppendAppName(wxFileName::GetHomeDir() + _T("/."));
 188 }
 189
 190 wxString wxStandardPaths::GetPluginsDir() const
 191 {
 192     return AppendAppName(GetInstallPrefix() + _T("/lib"));
 193 }
 194
 195 wxString
 196 wxStandardPaths::GetLocalizedResourcesDir(const wxChar *lang,
 197                                           ResourceCat category) const
 198 {
 199     if ( category != ResourceCat_Messages )
 200         return wxStandardPathsBase::GetLocalizedResourcesDir(lang, category);
 201
 202     return GetInstallPrefix() + _T("/share/locale/") + lang + _T("/LC_MESSAGES");
 203 }
 204
 205 #endif // __VMS/!__VMS
 206
 207 #endif // wxUSE_STDPATHS