38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
#include <cstdint>
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#include <string>
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#include <httplib.h>
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (size < 2 || size > 65536) return 0;
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// First byte selects the boundary length, the rest is the boundary then body
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size_t boundary_len = (static_cast<size_t>(data[0]) % 16) + 1;
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if (boundary_len + 1 >= size) boundary_len = 0;
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std::string boundary =
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boundary_len > 0
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? std::string(reinterpret_cast<const char *>(data + 1), boundary_len)
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: "----fuzzboundary";
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const uint8_t *body = data + 1 + boundary_len;
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size_t body_size = size - 1 - boundary_len;
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// FormDataParser::parse, fed in chunks to exercise the streaming paths
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httplib::detail::FormDataParser parser;
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parser.set_boundary(std::move(boundary));
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auto header_cb = [](const httplib::FormData &) -> bool { return true; };
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auto content_cb = [](const char *, size_t) -> bool { return true; };
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size_t chunk = (static_cast<size_t>(data[1]) % 64) + 1;
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for (size_t off = 0; off < body_size; off += chunk) {
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size_t n = (off + chunk > body_size) ? body_size - off : chunk;
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if (!parser.parse(reinterpret_cast<const char *>(body + off), n, header_cb,
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content_cb))
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break;
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}
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return 0;
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}
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