From: Po Lu <luangruo@yahoo.com>
Date: Fri, 11 Aug 2023 06:55:21 +0000 (+0800)
Subject: Minor adjustments to Android port
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=43cc92d6e41804cf1034e1d6e3cdf35e299bd196;p=emacs.git

Minor adjustments to Android port

* java/org/gnu/emacs/EmacsService.java (readDirectoryEntry):
Also refrain from returning NULL or file names containing
non-representable NULL bytes.
* src/callproc.c (get_current_directory): Clean up by employing
android_is_special_directory.
---

diff --git a/java/org/gnu/emacs/EmacsService.java b/java/org/gnu/emacs/EmacsService.java
index 379b1d30eda..cee823abc83 100644
--- a/java/org/gnu/emacs/EmacsService.java
+++ b/java/org/gnu/emacs/EmacsService.java
@@ -1503,9 +1503,13 @@ public final class EmacsService extends Service
 	    return entry;
 	  }
 
-	/* Skip this entry if its name cannot be represented.  */
+	/* Skip this entry if its name cannot be represented.  NAME
+	   can still be null here, since some Cursors are permitted to
+	   return NULL if INDEX is not a string.  */
 
-	if (name.equals ("..") || name.equals (".") || name.contains ("/"))
+	if (name == null || name.equals ("..")
+	    || name.equals (".") || name.contains ("/")
+	    || name.contains ("\0"))
 	  continue;
 
 	/* Now, look for its type.  */
diff --git a/src/callproc.c b/src/callproc.c
index 0645c2c3e18..dc37dfdc01f 100644
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -170,10 +170,11 @@ get_current_directory (bool encode)
   /* If DIR is an asset directory or a content directory, return
      the home directory instead.  */
 
-  if (encode && (!strcmp (SSDATA (dir), "/assets")
-		 || !strncmp (SSDATA (dir), "/assets/", 8)
-		 || !strcmp (SSDATA (dir), "/content")
-		 || !strncmp (SSDATA (dir), "/content/", 9)))
+  if (encode
+      && (android_is_special_directory (SSDATA (dir),
+					"/assets")
+	  || android_is_special_directory (SSDATA (dir),
+					   "/content")))
     dir = build_string ("~");
 
 #endif /* HAVE_ANDROID && ANDROID_STUBIFY */