Give It Decompiled IDA Code and get Frida Script for All Functions which have Char as argument or return type as char
Feel free to modify as per as need . May be if you modify for generating hook for all method without any char filtering please let me know and send a PR
javac Native2Frida.java
java Native2Frida Decompiled.c output.js
If output file is not provided then code will be printed in console.