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55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
#include "fuzz.h"
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#include "session.h"
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#include "fuzz-wrapfd.h"
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#include "debug.h"
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static void setup_fuzzer(void) {
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fuzz_common_setup();
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}
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int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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static int once = 0;
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if (!once) {
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setup_fuzzer();
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once = 1;
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}
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if (fuzz_set_input(Data, Size) == DROPBEAR_FAILURE) {
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return 0;
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}
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m_malloc_set_epoch(1);
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if (setjmp(fuzz.jmp) == 0) {
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buffer *line = buf_getstringbuf(fuzz.input);
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buffer *keyblob = buf_getstringbuf(fuzz.input);
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unsigned int algolen;
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char* algoname = buf_getstring(keyblob, &algolen);
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if (have_algo(algoname, algolen, sshhostkey) == DROPBEAR_FAILURE) {
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dropbear_exit("fuzzer imagined a bogus algorithm");
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}
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int ret = fuzz_checkpubkey_line(line, 5, "/home/me/authorized_keys",
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algoname, algolen,
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keyblob->data, keyblob->len);
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if (ret == DROPBEAR_SUCCESS) {
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/* fuzz_checkpubkey_line() should have cleaned up for failure */
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svr_pubkey_options_cleanup();
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}
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buf_free(line);
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buf_free(keyblob);
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m_free(algoname);
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m_malloc_free_epoch(1, 0);
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} else {
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m_malloc_free_epoch(1, 1);
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TRACE(("dropbear_exit longjmped"))
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/* dropbear_exit jumped here */
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}
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return 0;
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}
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