system.c -> system.cxx

Change-Id: I4629a01a67dd57d5915403a89da90e98b5184503

1 files changed, 312 insertions, 0 deletions

diff --git a/sal/osl/unx/system.cxx b/sal/osl/unx/system.cxx
new file mode 100644
index 000000000000..cb5734dc9d44
--- /dev/null
+++ b/sal/osl/unx/system.cxx
@@ -0,0 +1,312 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <unistd.h>
+#include <string.h>
+
+#include <config_features.h>
+
+#include "system.h"
+
+#ifdef NO_PTHREAD_RTL
+
+/* struct passwd differs on some platforms */
+
+#if defined(MACOSX) || defined(IOS) || defined(OPENBSD) || defined(NETBSD)
+
+//No mutex needed on Mac OS X, gethostbyname is thread safe
+
+#if defined(MACOSX)
+
+#define RTL_MUTEX_LOCK
+#define RTL_MUTEX_UNLOCK
+
+#else //defined(MACOSX)
+
+static pthread_mutex_t getrtl_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+#define RTL_MUTEX_LOCK pthread_mutex_lock(&getrtl_mutex);
+#define RTL_MUTEX_UNLOCK pthread_mutex_unlock(&getrtl_mutex);
+
+#endif //defined(MACOSX)
+
+extern int h_errno;
+
+struct hostent *gethostbyname_r(const char *name, struct hostent *result,
+                                char *buffer, size_t buflen, int *h_errnop)
+{
+    /* buffer layout:   name\0
+     *                  array_of_pointer_to_aliases
+     *                  NULL
+     *                  alias1\0...aliasn\0
+     *                  array_of_pointer_to_addresses
+     *                  NULL
+     *                  addr1addr2addr3...addrn
+     */
+      struct hostent* res;
+
+      RTL_MUTEX_LOCK
+
+      if ( (res = gethostbyname(name)) )
+      {
+        int nname, naliases, naddr_list, naliasesdata, n;
+        char **p, **parray, *data;
+
+        /* Check buffer size before copying, we want to leave the
+         * buffers unmodified in case something goes wrong.
+         *
+         * Is this required?
+         */
+
+        nname= strlen(res->h_name)+1;
+
+        naliases = naddr_list = naliasesdata = 0;
+
+        for ( p = res->h_aliases; *p != NULL; p++) {
+            naliases++;
+            naliasesdata += strlen(*p)+1;
+        }
+
+        for ( p = res->h_addr_list; *p != NULL; p++)
+            naddr_list++;
+
+        if ( nname
+             + (naliases+1)*sizeof(char*) + naliasesdata
+             + (naddr_list+1)*sizeof(char*) + naddr_list*res->h_length
+             <= buflen )
+        {
+            memcpy(result, res, sizeof(struct hostent));
+
+            strcpy(buffer, res->h_name);
+              result->h_name = buffer;
+            buffer += nname;
+
+            parray = (char**)buffer;
+            result->h_aliases = parray;
+            data = buffer + (naliases+1)*sizeof(char*);
+            for ( p = res->h_aliases; *p != NULL; p++) {
+                n = strlen(*p)+1;
+                *parray++ = data;
+                memcpy(data, *p, n);
+                data += n;
+            }
+            *parray = NULL;
+            buffer = data;
+            parray = (char**)buffer;
+            result->h_addr_list = parray;
+            data = buffer + (naddr_list+1)*sizeof(char*);
+            for ( p = res->h_addr_list; *p != NULL; p++) {
+                *parray++ = data;
+                memcpy(data, *p, res->h_length);
+                data += res->h_length;
+            }
+            *parray = NULL;
+
+               res = result;
+        }
+        else
+        {
+            errno = ERANGE;
+            res = NULL;
+        }
+    }
+    else
+    {
+        *h_errnop = h_errno;
+    }
+
+    RTL_MUTEX_UNLOCK
+
+    return res;
+}
+#endif // OSX || IOS || OPENBSD || NETBSD
+
+#if defined(MACOSX)
+/*
+ * Add support for resolving Mac native alias files (not the same as unix alias files)
+ * (what are "unix alias files"?)
+ * returns 0 on success.
+ */
+int macxp_resolveAlias(char *path, int buflen)
+{
+#if HAVE_FEATURE_MACOSX_SANDBOX
+  /* Avoid unnecessary messages in the system.log:
+   *
+   * soffice(57342) deny file-read-data /Users/tml/Documents/b.odt/..namedfork/rsrc
+   * etc.
+   *
+   * Just don't bother with resolving aliases. I doubt its usefulness anyway.
+   */
+  (void) path;
+  (void) buflen;
+  return 0;
+#else
+  CFStringRef cfpath;
+  CFURLRef cfurl;
+  CFErrorRef cferror;
+  CFDataRef cfbookmark;
+
+  char *unprocessedPath = path;
+
+  if ( *unprocessedPath == '/' )
+      unprocessedPath++;
+
+  int nRet = 0;
+  while ( !nRet && unprocessedPath && *unprocessedPath )
+  {
+      unprocessedPath = strchr( unprocessedPath, '/' );
+      if ( unprocessedPath )
+          *unprocessedPath = '\0';
+
+      cfpath = CFStringCreateWithCString( NULL, path, kCFStringEncodingUTF8 );
+      cfurl = CFURLCreateWithFileSystemPath( NULL, cfpath, kCFURLPOSIXPathStyle, false );
+      CFRelease( cfpath );
+      cferror = NULL;
+      cfbookmark = CFURLCreateBookmarkDataFromFile( NULL, cfurl, &cferror );
+      CFRelease( cfurl );
+
+      if ( cfbookmark == NULL )
+      {
+          if(cferror)
+          {
+              CFRelease( cferror );
+          }
+      }
+      else
+      {
+          Boolean isStale;
+          cfurl = CFURLCreateByResolvingBookmarkData( NULL, cfbookmark, kCFBookmarkResolutionWithoutUIMask,
+                                                      NULL, NULL, &isStale, &cferror );
+          CFRelease( cfbookmark );
+          if ( cfurl == NULL )
+          {
+              CFRelease( cferror );
+          }
+          else
+          {
+              cfpath = CFURLCopyFileSystemPath( cfurl, kCFURLPOSIXPathStyle );
+              CFRelease( cfurl );
+              if ( cfpath != NULL )
+              {
+                  char tmpPath[ PATH_MAX ];
+                  if ( CFStringGetCString( cfpath, tmpPath, PATH_MAX, kCFStringEncodingUTF8 ) )
+                  {
+                      int nLen = strlen( tmpPath ) + ( unprocessedPath ? strlen( unprocessedPath + 1 ) + 1 : 0 );
+                      if ( nLen < buflen && nLen < PATH_MAX )
+                      {
+                          if ( unprocessedPath )
+                          {
+                              int nTmpPathLen = strlen( tmpPath );
+                              strcat( tmpPath, "/" );
+                              strcat( tmpPath, unprocessedPath + 1 );
+                              strcpy( path, tmpPath);
+                              unprocessedPath = path + nTmpPathLen;
+                          }
+                          else if ( !unprocessedPath )
+                          {
+                              strcpy( path, tmpPath );
+                          }
+                      }
+                      else
+                      {
+                          errno = ENAMETOOLONG;
+                          nRet = -1;
+                      }
+                  }
+                  CFRelease( cfpath );
+              }
+          }
+      }
+
+      if ( unprocessedPath )
+          *unprocessedPath++ = '/';
+  }
+
+  return nRet;
+#endif
+}
+
+#endif  /* defined MACOSX */
+
+#endif /* NO_PTHREAD_RTL */
+
+#if defined(FREEBSD)
+char *fcvt(double value, int ndigit, int *decpt, int *sign)
+{
+  static char ret[256];
+  char buf[256],zahl[256],format[256]="%";
+  char *v1,*v2;
+
+  if (value==0.0) value=1e-30;
+
+  if (value<0.0) *sign=1; else *sign=0;
+
+  if (value<1.0)
+  {
+    *decpt=(int)log10(value);
+    value*=pow(10.0,1-*decpt);
+    ndigit+=*decpt-1;
+    if (ndigit<0) ndigit=0;
+  }
+  else
+  {
+    *decpt=(int)log10(value)+1;
+  }
+
+  sprintf(zahl,"%d",ndigit);
+  strcat(format,zahl);
+  strcat(format,".");
+  strcat(format,zahl);
+  strcat(format,"f");
+
+  sprintf(buf,format,value);
+
+  if (ndigit!=0)
+  {
+    v1=strtok(buf,".");
+    v2=strtok(NULL,".");
+    strcpy(ret,v1);
+    strcat(ret,v2);
+  }
+  else
+  {
+    strcpy(ret,buf);
+  }
+
+  return(ret);
+}
+
+#endif
+
+//might be useful on other platforms, but doesn't compiler under MACOSX anyway
+#if defined(__GNUC__) && defined(LINUX)
+//force the __data_start symbol to exist in any executables that link against
+//libuno_sal so that dlopening of the libgcj provided libjvm.so on some
+//platforms where it needs that symbol will succeed. e.g. Debian mips/lenny
+//with gcc 4.3. With this in place the smoketest succeeds with libgcj provided
+//java. Quite possibly also required/helpful for s390x/s390 and maybe some
+//others. Without it the dlopen of libjvm.so will fail with __data_start
+//not found
+extern int __data_start[] __attribute__((weak));
+extern int data_start[] __attribute__((weak));
+extern int _end[] __attribute__((weak));
+static void *dummy[] __attribute__((used)) = {__data_start, data_start, _end};
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */