macOS: checking Fl_Preferences file path improved

zlib: removed warning

src/Fl_Preferences.cxx

@@ -923,7 +923,7 @@ Fl_Preferences::RootNode::~RootNode() {
 
 // read a preferences file and construct the group tree and with all entry leafs
 int Fl_Preferences::RootNode::read() {
-  if (!filename_)   // RUNTIME preferences
+  if (!filename_)   // RUNTIME preferences, or filename could not be created
     return -1;
   if ( (root_ & Fl_Preferences::CORE) && !(fileAccess_ & Fl_Preferences::CORE_READ_OK) ) {
     prefs_->node->clearDirtyFlags();
@@ -972,7 +972,7 @@ int Fl_Preferences::RootNode::read() {
 
 // write the group tree and all entry leafs
 int Fl_Preferences::RootNode::write() {
-  if (!filename_)   // RUNTIME preferences
+  if (!filename_)   // RUNTIME preferences, or filename could not be created
     return -1;
   if ( (root_ & Fl_Preferences::CORE) && !(fileAccess_ & Fl_Preferences::CORE_WRITE_OK) )
     return -1;
@@ -1010,7 +1010,7 @@ int Fl_Preferences::RootNode::write() {
 // - copy the path into the buffer at "path"
 // - if the resulting path is longer than "pathlen", it will be cropped
 char Fl_Preferences::RootNode::getPath( char *path, int pathlen ) {
-  if (!filename_)   // RUNTIME preferences
+  if (!filename_)   // RUNTIME preferences. or filename could not be created
     return 1; // return 1 (not -1) to be consistent with fl_make_path()
 
   if (pathlen<=0)

src/Fl_cocoa.mm

@@ -4387,6 +4387,46 @@ int Fl_Darwin_System_Driver::calc_mac_os_version() {
   return fl_mac_os_version;
 }
 
+char *Fl_Darwin_System_Driver::preference_rootnode(Fl_Preferences *prefs, Fl_Preferences::Root root,
+                                                   const char *vendor, const char *application)
+{
+  static char *filename = 0L;
+
+  // Allocate this only when we need it, but then keep it allocated.
+  if (!filename) filename = (char*)::calloc(1, FL_PATH_MAX);
+
+  switch (root&Fl_Preferences::ROOT_MASK) {
+    case Fl_Preferences::SYSTEM:
+      // This is safe, even on machines that use different languages
+      strcpy(filename, "/Library/Preferences");
+      break;
+    case Fl_Preferences::USER:
+    { // Find the home directory, but return NULL if components were not found.
+      // If we ever port this to iOS: this returns tha location of the app!
+      NSString *nsHome = NSHomeDirectory();
+      if (!nsHome) return 0L;
+      const char *cHome = [nsHome UTF8String];
+      if (!cHome) return 0L;
+      snprintf(filename, FL_PATH_MAX, "%s/Library/Preferences", cHome);
+      break; }
+  }
+
+  // Make sure that the parameters are not NULL
+  if ( (vendor==0L) || (vendor[0]==0) )
+    vendor = "unknown";
+  if ( (application==0L) || (application[0]==0) )
+    application = "unknown";
+
+  // Our C path names for preferences will be:
+  // SYSTEM: "/Library/Preferences/$vendor/$application.prefs"
+  // SYSTEM: "/Users/$user/Preferences/$vendor/$application.prefs"
+  snprintf(filename + strlen(filename), FL_PATH_MAX - strlen(filename),
+           "/%s/%s.prefs", vendor, application);
+
+  return filename;
+}
+
+
 //
 // End of "$Id$".
 //

src/drivers/Darwin/Fl_Darwin_System_Driver.cxx

@@ -242,26 +242,6 @@ void Fl_Darwin_System_Driver::newUUID(char *uuidBuffer)
   CFRelease(theUUID);
 }
 
-char *Fl_Darwin_System_Driver::preference_rootnode(Fl_Preferences *prefs, Fl_Preferences::Root root,
-                                                  const char *vendor, const char *application)
-{
-  static char filename[ FL_PATH_MAX ];
-  // TODO: verify that this is the Apple sanctioned way of finding these folders
-  // (On Windows, this frequently leads to issues with internationalized systems)
-  // Carbon: err = FindFolder( kLocalDomain, kPreferencesFolderType, 1, &spec.vRefNum, &spec.parID );
-  switch (root&Fl_Preferences::ROOT_MASK) {
-    case Fl_Preferences::SYSTEM:
-      strcpy(filename, "/Library/Preferences");
-      break;
-    case Fl_Preferences::USER:
-      sprintf(filename, "%s/Library/Preferences", getenv("HOME"));
-      break;
-  }
-  snprintf(filename + strlen(filename), sizeof(filename) - strlen(filename),
-           "/%s/%s.prefs", vendor, application);
-  return filename;
-}
-
 /*
  * returns pointer to the filename, or null if name ends with ':'
  */

zlib/inflate.c

@@ -1504,7 +1504,8 @@ z_streamp strm;
 {
     struct inflate_state FAR *state;
 
-    if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
+    if (strm == Z_NULL || strm->state == Z_NULL)
+        return ((unsigned)-1L) << 16;
     state = (struct inflate_state FAR *)strm->state;
     return ((long)(state->back) << 16) +
         (state->mode == COPY ? state->length :