// GhidraScript: DecompileBySymbol.java
// Usage (headless):
//   analyzeHeadless <projDir> <projName> -process <program> -noanalysis -readOnly \
//     -scriptPath <path> -postScript DecompileBySymbol.java <name-fragment>...

import ghidra.app.decompiler.DecompInterface;
import ghidra.app.decompiler.DecompileResults;
import ghidra.app.script.GhidraScript;
import ghidra.program.model.listing.Function;
import ghidra.program.model.listing.FunctionIterator;

public class DecompileBySymbol extends GhidraScript {
    @Override
    public void run() throws Exception {
        String[] args = getScriptArgs();
        if (args == null || args.length == 0) {
            printerr("DecompileBySymbol: needs one or more symbol-name fragments");
            return;
        }

        DecompInterface decomp = new DecompInterface();
        decomp.openProgram(currentProgram);

        for (String query : args) {
            boolean found = false;
            FunctionIterator functions = currentProgram.getFunctionManager().getFunctions(true);
            while (functions.hasNext()) {
                Function function = functions.next();
                String name = function.getName(true);
                if (!name.contains(query)) {
                    continue;
                }

                found = true;
                println("================================================================================");
                println("query: " + query);
                println("function: " + name + " @ " + function.getEntryPoint());

                DecompileResults result = decomp.decompileFunction(function, 60, monitor);
                if (!result.decompileCompleted()) {
                    println("(decompile failed)");
                    continue;
                }
                println(result.getDecompiledFunction().getC());
            }
            if (!found) {
                println("No function matched: " + query);
            }
        }
    }
}