// GhidraScript: dump an array of 32-bit pointers as ASCII strings.
// Usage: DumpPointerStrings.java <address> [count]

import ghidra.app.script.GhidraScript;
import ghidra.program.model.address.Address;
import ghidra.program.model.mem.MemoryAccessException;

public class DumpPointerStrings extends GhidraScript {
    private String readAscii(Address at) throws MemoryAccessException {
        StringBuilder out = new StringBuilder();
        for (int i = 0; i < 256; ++i) {
            int value = getByte(at.add(i)) & 0xff;
            if (value == 0) break;
            if (value < 0x20 || value > 0x7e) return "<non-ascii>";
            out.append((char)value);
        }
        return out.toString();
    }

    @Override
    public void run() throws Exception {
        String[] args = getScriptArgs();
        if (args == null || args.length == 0) {
            printerr("DumpPointerStrings: needs address and optional count");
            return;
        }
        Address start = toAddr(Long.decode(args[0]));
        int count = args.length > 1 ? Integer.decode(args[1]) : 32;
        for (int i = 0; i < count; ++i) {
            Address slot = start.add(i * 4L);
            long raw = getInt(slot) & 0xffffffffL;
            Address target = toAddr(raw);
            String value;
            try {
                value = currentProgram.getMemory().contains(target) ? readAscii(target) : "<outside>";
            } catch (Exception exc) {
                value = "<invalid>";
            }
            println(String.format("%4d  %s -> %08x  %s", i, slot, raw, value));
        }
    }
}