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-rw-r--r--CAN-binder/libs/nanopb/tests/fuzztest/generate_message.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/CAN-binder/libs/nanopb/tests/fuzztest/generate_message.c b/CAN-binder/libs/nanopb/tests/fuzztest/generate_message.c
deleted file mode 100644
index 6e49299..0000000
--- a/CAN-binder/libs/nanopb/tests/fuzztest/generate_message.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/* Generates a random, valid protobuf message. Useful to seed
- * external fuzzers such as afl-fuzz.
- */
-
-#include <pb_encode.h>
-#include <pb_common.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <time.h>
-#include "alltypes_static.pb.h"
-
-static uint64_t random_seed;
-
-/* Uses xorshift64 here instead of rand() for both speed and
- * reproducibility across platforms. */
-static uint32_t rand_word()
-{
- random_seed ^= random_seed >> 12;
- random_seed ^= random_seed << 25;
- random_seed ^= random_seed >> 27;
- return random_seed * 2685821657736338717ULL;
-}
-
-/* Fills a buffer with random data. */
-static void rand_fill(uint8_t *buf, size_t count)
-{
- while (count--)
- {
- *buf++ = rand_word() & 0xff;
- }
-}
-
-/* Check that size/count fields do not exceed their max size.
- * Otherwise we would have to loop pretty long in generate_message().
- * Note that there may still be a few encoding errors from submessages.
- */
-static void limit_sizes(alltypes_static_AllTypes *msg)
-{
- pb_field_iter_t iter;
- pb_field_iter_begin(&iter, alltypes_static_AllTypes_fields, msg);
- while (pb_field_iter_next(&iter))
- {
- if (PB_LTYPE(iter.pos->type) == PB_LTYPE_BYTES)
- {
- ((pb_bytes_array_t*)iter.pData)->size %= iter.pos->data_size - PB_BYTES_ARRAY_T_ALLOCSIZE(0);
- }
-
- if (PB_HTYPE(iter.pos->type) == PB_HTYPE_REPEATED)
- {
- *((pb_size_t*)iter.pSize) %= iter.pos->array_size;
- }
-
- if (PB_HTYPE(iter.pos->type) == PB_HTYPE_ONEOF)
- {
- /* Set the oneof to this message type with 50% chance. */
- if (rand_word() & 1)
- {
- *((pb_size_t*)iter.pSize) = iter.pos->tag;
- }
- }
- }
-}
-
-static void generate_message()
-{
- alltypes_static_AllTypes msg;
- uint8_t buf[8192];
- pb_ostream_t stream = {0};
-
- do {
- if (stream.errmsg)
- fprintf(stderr, "Encoder error: %s\n", stream.errmsg);
-
- stream = pb_ostream_from_buffer(buf, sizeof(buf));
- rand_fill((void*)&msg, sizeof(msg));
- limit_sizes(&msg);
- } while (!pb_encode(&stream, alltypes_static_AllTypes_fields, &msg));
-
- fwrite(buf, 1, stream.bytes_written, stdout);
-}
-
-int main(int argc, char **argv)
-{
- if (argc > 1)
- {
- random_seed = atol(argv[1]);
- }
- else
- {
- random_seed = time(NULL);
- }
-
- fprintf(stderr, "Random seed: %llu\n", (long long unsigned)random_seed);
-
- generate_message();
-
- return 0;
-}
-