Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique Reachable Complexities	Unique Reachable Functions	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
7	1 : View List ['readstat_parser_free']	7	readstat_parser_init	call site: 00005	/src/readstat/src/readstat_parser.c:9
0	None	0	unistd_io_init	call site: 00007	/src/readstat/src/readstat_io_unistd.c:125
0	None	0	unistd_io_init	call site: 00011	/src/readstat/src/readstat_io_unistd.c:128
0	None	0	unistd_io_init	call site: 00014	/src/readstat/src/readstat_io_unistd.c:131
0	None	0	unistd_io_init	call site: 00017	/src/readstat/src/readstat_io_unistd.c:134
0	None	0	unistd_io_init	call site: 00020	/src/readstat/src/readstat_io_unistd.c:137
0	None	0	rt_seek_handler	call site: 00031	/src/readstat/src/test/test_buffer_io.c:22
0	None	0	rt_seek_handler	call site: 00031	/src/readstat/src/test/test_buffer_io.c:28
0	None	0	rt_seek_handler	call site: 00031	/src/readstat/src/test/test_buffer_io.c:31
0	None	0	submit_value_label	call site: 00070	/src/readstat/src/txt/commands_util.c:10
0	None	0	submit_value_label	call site: 00070	/src/readstat/src/txt/commands_util.c:21
0	None	0	submit_columns	call site: 00073	/src/readstat/src/txt/commands_util.c:54

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           fuzzer_parser_init

[function] [call site] 00001


             readstat_parser_init

[function] [call site] 00002


               calloc

[call site] 00003


               calloc

[call site] 00004


               unistd_io_init

[function] [call site] 00005


                 readstat_set_open_handler

[function] [call site] 00006


                 unistd_open_handler

[function] [call site] 00007


                   open_with_unicode

[function] [call site] 00008


                     open

[call site] 00009


                 readstat_set_close_handler

[function] [call site] 00010


                 unistd_close_handler

[function] [call site] 00011


                   close

[call site] 00012


                 readstat_set_seek_handler

[function] [call site] 00013


                 unistd_seek_handler

[function] [call site] 00014


                   lseek

[call site] 00015


                 readstat_set_read_handler

[function] [call site] 00016


                 unistd_read_handler

[function] [call site] 00017


                   read

[call site] 00018


                 readstat_set_update_handler

[function] [call site] 00019


                 unistd_update_handler

[function] [call site] 00020


                   lseek

[call site] 00021


                 calloc

[call site] 00022


                 readstat_set_io_ctx

[function] [call site] 00023


               readstat_parser_free

[function] [call site] 00024


                 readstat_set_io_ctx

[function] [call site] 00025


             readstat_set_open_handler

[function] [call site] 00026


             rt_open_handler

[function] [call site] 00027


             readstat_set_close_handler

[function] [call site] 00028


             rt_close_handler

[function] [call site] 00029


             readstat_set_seek_handler

[function] [call site] 00030


             rt_seek_handler

[function] [call site] 00031


             readstat_set_read_handler

[function] [call site] 00032


             rt_read_handler

[function] [call site] 00033


             readstat_set_update_handler

[function] [call site] 00034


             rt_update_handler

[function] [call site] 00035


             readstat_set_metadata_handler

[function] [call site] 00036


             handle_metadata

[function] [call site] 00037


             readstat_set_note_handler

[function] [call site] 00038


             handle_note

[function] [call site] 00039


             readstat_set_variable_handler

[function] [call site] 00040


             handle_variable

[function] [call site] 00041


             readstat_set_fweight_handler

[function] [call site] 00042


             handle_fweight

[function] [call site] 00043


             readstat_set_value_handler

[function] [call site] 00044


             handle_value

[function] [call site] 00045


             readstat_set_value_label_handler

[function] [call site] 00046


             handle_value_label

[function] [call site] 00047


           readstat_set_io_ctx

[function] [call site] 00048


           readstat_parse_sas_commands

[function] [call site] 00049


             calloc

[call site] 00050


             readstat_copy

[function] [call site] 00051


             readstat_copy

[function] [call site] 00052


             readstat_copy

[function] [call site] 00053


             readstat_copy

[function] [call site] 00054


             readstat_copy_lower

[function] [call site] 00055


               readstat_copy

[function] [call site] 00056


               tolower

[call site] 00057


             strcasecmp

[call site] 00058


             strcasecmp

[call site] 00059


             readstat_schema_find_or_create_entry

[function] [call site] 00060


               strcmp

[call site] 00061


               realloc

[call site] 00062


               strlen

[call site] 00063


               readstat_copy

[function] [call site] 00064


             readstat_schema_find_or_create_entry

[function] [call site] 00065


             readstat_schema_find_or_create_entry

[function] [call site] 00066


             readstat_copy

[function] [call site] 00067


             readstat_schema_find_or_create_entry

[function] [call site] 00068


             readstat_copy

[function] [call site] 00069


             submit_value_label

[function] [call site] 00070


             snprintf

[call site] 00071


             snprintf

[call site] 00072


             submit_columns

[function] [call site] 00073


             readstat_schema_free

[function] [call site] 00074


           readstat_schema_free

[function] [call site] 00075


           readstat_parser_free

[function] [call site] 00076