// Fuzz target for the Content-Disposition parser (AGENT-CORE §3: mojibake source, needs a
// fuzz target). The parser must be total on any input — no crash, no UB, bounded work.
//
//   clang++ -std=c++23 -fsanitize=fuzzer,address,undefined ... (see CMakeLists.txt)
//   ./fuzz_content_disposition -max_len=4096 corpus/content_disposition/

#include <cstddef>
#include <cstdint>
#include <string_view>

#include "vdm/net/content_disposition.hpp"

extern "C" int LLVMFuzzerTestOneInput(const std::uint8_t *data, std::size_t size) {
    std::string_view header(reinterpret_cast<const char *>(data), size);
    auto cd = vdm::net::parse_content_disposition(header);

    // Light invariants: a returned filename never contains a path separator or NUL.
    for (char c : cd.filename)
        if (c == '/' || c == '\\' || c == '\0')
            __builtin_trap();

    return 0;
}