Feature: Load execve() hook on startup.

app/src/main/cpp/exec.c

@@ -12,7 +12,7 @@ static const char *rewrite_executable(const char *filename, char *buffer, int bu
     if (bin_match == filename || bin_match == (filename + 4)) {
         // We have either found "/bin/" at the start of the string or at
         // "/xxx/bin/". Take the path after that.
-        strncpy(buffer + 36, bin_match + 5, buffer_len - 37);
+        strncpy(buffer + 36, bin_match + 5, (size_t) (buffer_len - 37));
         filename = buffer;
     }
     return filename;

app/src/main/java/io/neoterm/App.kt

@@ -6,6 +6,7 @@ import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import io.neoterm.component.NeoInitializer
+import io.neoterm.frontend.logging.NLog
 import io.neoterm.frontend.preference.NeoPreference
 import io.neoterm.utils.CrashHandler
 

app/src/main/java/io/neoterm/frontend/shell/ShellTermSession.kt

@@ -181,9 +181,13 @@ open class ShellTermSession private constructor(shellPath: String, cwd: String,
                 val originPathEnv = "__NEOTERM_ORIGIN_PATH=" + System.getenv("PATH")
                 val originLdEnv = "__NEOTERM_ORIGIN_LD_LIBRARY_PATH=" + System.getenv("LD_LIBRARY_PATH")
 
+                // execve(2) wrapper to avoid incorrect shebang
+                val ldPreloadEnv= "LD_PRELOAD=${App.get().applicationInfo.nativeLibraryDir}/libnexec.so"
+
                 arrayOf(termEnv, homeEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv,
                         androidRootEnv, androidDataEnv, externalStorageEnv,
-                        tmpdirEnv, neotermIdEnv, originPathEnv, originLdEnv)
+                        tmpdirEnv, neotermIdEnv, originPathEnv, originLdEnv,
+                        ldPreloadEnv)
             }
         }