// GhidraScript: rename functions from address/name pairs.
// Usage: RenameFunctions.java 0x00100000 FunctionName 0x00100100 OtherName

import ghidra.app.script.GhidraScript;
import ghidra.program.model.address.Address;
import ghidra.program.model.listing.Function;
import ghidra.program.model.symbol.SourceType;

public class RenameFunctions extends GhidraScript {
    @Override
    public void run() throws Exception {
        String[] args = getScriptArgs();
        if (args == null || args.length == 0 || (args.length & 1) != 0) {
            printerr("RenameFunctions: needs address/name pairs");
            return;
        }
        for (int i = 0; i < args.length; i += 2) {
            Address address = toAddr(Long.decode(args[i]));
            Function function = getFunctionAt(address);
            if (function == null) {
                printerr("no function at " + address);
                continue;
            }
            function.setName(args[i + 1], SourceType.USER_DEFINED);
            println(address + " " + function.getName());
        }
    }
}