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	6	readstat_parse_sas7bcat	call site: 00051	/src/readstat/src/sas/readstat_sas7bcat_read.c:385
0	None	6	readstat_parse_sas7bcat	call site: 00074	/src/readstat/src/sas/readstat_sas7bcat_read.c:439
0	None	6	readstat_parse_sas7bcat	call site: 00079	/src/readstat/src/sas/readstat_sas7bcat_read.c:445
0	None	6	readstat_parse_sas7bcat	call site: 00080	/src/readstat/src/sas/readstat_sas7bcat_read.c:459
0	None	6	readstat_parse_sas7bcat	call site: 00093	/src/readstat/src/sas/readstat_sas7bcat_read.c:474
0	None	0	readstat_convert	call site: 00074	/src/readstat/src/readstat_convert.c:13
0	None	0	readstat_convert	call site: 00076	/src/readstat/src/readstat_convert.c:20
0	None	0	readstat_convert	call site: 00078	/src/readstat/src/readstat_convert.c:29
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

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_sas7bcat

[function] [call site] 00049


             calloc

[call site] 00050


             calloc

[call site] 00051


             sas_read_header

[function] [call site] 00052


               sas_epoch

[function] [call site] 00053


               memcmp

[call site] 00054


               memcmp

[call site] 00055


               machine_is_little_endian

[function] [call site] 00056


               machine_is_little_endian

[function] [call site] 00057


               snprintf

[call site] 00058


               byteswap_double

[function] [call site] 00059


                 byteswap8

[function] [call site] 00060


               byteswap_double

[function] [call site] 00061


               sas_convert_time

[function] [call site] 00062


               sas_convert_time

[function] [call site] 00063


               byteswap4

[function] [call site] 00064


               byteswap4

[function] [call site] 00065


               byteswap8

[function] [call site] 00066


               byteswap4

[function] [call site] 00067


               snprintf

[call site] 00068


               __isoc99_sscanf

[call site] 00069


               snprintf

[call site] 00070


             machine_is_little_endian

[function] [call site] 00071


             strcmp

[call site] 00072


             iconv_open

[call site] 00073


             readstat_convert

[function] [call site] 00074


               iconv

[call site] 00075


               __errno_location

[call site] 00076


               __errno_location

[call site] 00077


               __errno_location

[call site] 00078


             readstat_malloc

[function] [call site] 00079


             sas7bcat_augment_index

[function] [call site] 00080


               memcmp

[call site] 00081


               memcmp

[call site] 00082


               sas_read8

[function] [call site] 00083


                 byteswap8

[function] [call site] 00084


               sas_read2

[function] [call site] 00085


                 byteswap2

[function] [call site] 00086


               sas_read4

[function] [call site] 00087


                 byteswap4

[function] [call site] 00088


               sas_read2

[function] [call site] 00089


               readstat_realloc

[function] [call site] 00090


                 realloc

[call site] 00091


             memcmp

[call site] 00092


             sas7bcat_augment_index

[function] [call site] 00093


             sas7bcat_sort_index

[function] [call site] 00094


               qsort

[call site] 00095


               compare_block_pointers

[function] [call site] 00096


             sas7bcat_uniq_index

[function] [call site] 00097


             sas7bcat_block_size

[function] [call site] 00098


               sas_read4

[function] [call site] 00099


               sas_read2

[function] [call site] 00100


               sas_read2

[function] [call site] 00101


               sas_read4

[function] [call site] 00102


               sas_read2

[function] [call site] 00103


               sas_read2

[function] [call site] 00104


             readstat_realloc

[function] [call site] 00105


             sas7bcat_read_block

[function] [call site] 00106


               sas_read4

[function] [call site] 00107


               sas_read2

[function] [call site] 00108


               sas_read2

[function] [call site] 00109


               sas_read4

[function] [call site] 00110


               sas_read2

[function] [call site] 00111


               sas_read2

[function] [call site] 00112


             sas7bcat_parse_block

[function] [call site] 00113


               sas_read2

[function] [call site] 00114


               sas_read8

[function] [call site] 00115


               sas_read8

[function] [call site] 00116


               sas_read4

[function] [call site] 00117


               sas_read4

[function] [call site] 00118


               readstat_convert

[function] [call site] 00119


               readstat_convert

[function] [call site] 00120


               sas7bcat_parse_value_labels

[function] [call site] 00121


                 readstat_calloc

[function] [call site] 00122


                 machine_is_little_endian

[function] [call site] 00123


                 sas_read2

[function] [call site] 00124


                 sas_read4

[function] [call site] 00125


                 sas_read2

[function] [call site] 00126


                 sas_read2

[function] [call site] 00127


                 readstat_convert

[function] [call site] 00128


                 sas_read8

[function] [call site] 00129


                 sas_assign_tag

[function] [call site] 00130


                   sas_validate_tag

[function] [call site] 00131


                 sas_read2

[function] [call site] 00132


                 realloc

[call site] 00133


                 readstat_convert

[function] [call site] 00134


             sas7bcat_ctx_free

[function] [call site] 00135


               iconv_close

[call site] 00136


           readstat_parser_free

[function] [call site] 00137