snapshots: fuzz ssarchive parser

Author: cali-jumptrading

src/discof/restore/Local.mk

@@ -16,6 +16,7 @@ $(call make-unit-test,test_ssmanifest_parser,utils/test_ssmanifest_parser,fd_dis
 ifdef FD_HAS_HOSTED
 $(call make-fuzz-test,fuzz_snapshot_parser,utils/fuzz_snapshot_parser,fd_discof fd_flamenco fd_ballet fd_util)
 $(call make-fuzz-test,fuzz_ssmanifest_parser,utils/fuzz_ssmanifest_parser,fd_discof fd_flamenco fd_ballet fd_util)
+$(call make-fuzz-test,fuzz_ssarchive_parser,utils/fuzz_ssarchive_parser,fd_discof fd_flamenco fd_ballet fd_util)
 endif
 
 endif

src/discof/restore/utils/fuzz_ssarchive_parser.c

@@ -0,0 +1,38 @@
+#include "fd_ssarchive.h"
+
+#if !FD_HAS_HOSTED
+#error "This target requires FD_HAS_HOSTED"
+#endif
+
+#include <stdlib.h>
+#include <assert.h>
+
+int
+LLVMFuzzerInitialize( int  *   argc,
+                      char *** argv ) {
+  /* Set up shell without signal handlers */
+  putenv( "FD_LOG_BACKTRACE=0" );
+  fd_boot( argc, argv );
+  atexit( fd_halt );
+  fd_log_level_core_set   ( 4 );
+  fd_log_level_logfile_set( 4 );
+
+  return 0;
+}
+
+int
+LLVMFuzzerTestOneInput( uchar const * data,
+                        ulong         size ) {
+  ulong full_slot;
+  ulong incremental_slot;
+  uchar decoded_hash[ FD_HASH_FOOTPRINT ];
+
+  char* name_cstr = (char *)malloc( size + 1UL );
+  assert( name_cstr );
+  fd_cstr_fini( fd_cstr_append_text( fd_cstr_init( name_cstr ), (char const *)data, size ) );
+
+  fd_ssarchive_parse_filename( name_cstr, &full_slot, &incremental_slot, decoded_hash );
+
+  free( name_cstr );
+  return 0;
+}