Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
2	2	1 : View List ['fopen64']	6	31	cgif_newgif	call site: 00009	/src/cgif/build/../src/cgif.c:83
2	2	1 : View List ['fclose']	2	9	cgif_close	call site: 00067	/src/cgif/build/../src/cgif.c:504
2	2	1 : View List ['fclose']	2	5	cgif_newgif	call site: 00012	/src/cgif/build/../src/cgif.c:122
2	2	1 : View List ['fwrite']	2	2	writecb	call site: 00000	/src/cgif/build/../src/cgif.c:53
0	0	None	2	2	cgif_newgif	call site: 00010	/src/cgif/build/../src/cgif.c:91
0	0	None	0	15	cgif_raw_newgif	call site: 00012	/src/cgif/build/../src/cgif_raw.c:432
0	0	1 : View List ['free']	0	0	cgif_raw_newgif	call site: 00019	/src/cgif/build/../src/cgif_raw.c:458
0	0	None	0	0	cgif_raw_addframe	call site: 00049	/src/cgif/build/../src/cgif_raw.c:531
0	0	None	0	0	cgif_raw_addframe	call site: 00061	/src/cgif/build/../src/cgif_raw.c:602
0	0	None	0	0	hU16toLE	call site: 00014	/src/cgif/build/../src/cgif_raw.c:63

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           processInput(ByteStream*)

[function] [call site] 00001


             read_gifconfig(ByteStream*, st_gifconfig*)

[function] [call site] 00002


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00003


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00004


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00005


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00006


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00007


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00008


             cgif_newgif

[function] [call site] 00009


               fopen64

[call site] 00010


               fclose

[call site] 00011


               cgif_raw_newgif

[function] [call site] 00012


                 initMainHeader

[function] [call site] 00013


                   hU16toLE

[function] [call site] 00014


                   hU16toLE

[function] [call site] 00015


                   calcNextPower2Ex

[function] [call site] 00016


                 calcNextPower2Ex

[function] [call site] 00017


                 writeDummyBytes

[function] [call site] 00018


                 initAppExtBlock

[function] [call site] 00019


                   hU16toLE

[function] [call site] 00020


               fclose

[call site] 00021


               freeCGIF

[function] [call site] 00022


             read_frameconfig(ByteStream*, st_frameconfig*, unsigned long)

[function] [call site] 00023


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00024


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00025


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00026


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00027


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00028


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00029


               readdata(ByteStream*, void*, unsigned long)

[function] [call site] 00030


             cgif_addframe

[function] [call site] 00031


               cmpPixel

[function] [call site] 00032


                 memcmp

[call site] 00033


               flushFrame

[function] [call site] 00034


                 doWidthHeightOptim

[function] [call site] 00035


                   cmpPixel

[function] [call site] 00036


                   cmpPixel

[function] [call site] 00037


                   cmpPixel

[function] [call site] 00038


                   cmpPixel

[function] [call site] 00039


                 calcNextPower2Ex

[function] [call site] 00040


                 cmpPixel

[function] [call site] 00041


                 cgif_raw_addframe

[function] [call site] 00042


                   calcNextPower2Ex

[function] [call site] 00043


                   calcInitCodeLen

[function] [call site] 00044


                     calcNextPower2Ex

[function] [call site] 00045


                   hU16toLE

[function] [call site] 00046


                   hU16toLE

[function] [call site] 00047


                   hU16toLE

[function] [call site] 00048


                   hU16toLE

[function] [call site] 00049


                   LZW_GenerateStream

[function] [call site] 00050


                     lzw_generate

[function] [call site] 00051


                       resetDict

[function] [call site] 00052


                       lzw_crawl_tree

[function] [call site] 00053


                         resetDict

[function] [call site] 00054


                         add_child

[function] [call site] 00055


                         resetDict

[function] [call site] 00056


                     create_byte_list

[function] [call site] 00057


                     create_byte_list_block

[function] [call site] 00058


                   LZW_GenerateStream

[function] [call site] 00059


                   hU16toLE

[function] [call site] 00060


                   writeDummyBytes

[function] [call site] 00061


               freeFrame

[function] [call site] 00062


               copyFrameConfig

[function] [call site] 00063


             read_frameconfig(ByteStream*, st_frameconfig*, unsigned long)

[function] [call site] 00064


             cgif_close

[function] [call site] 00065


               flushFrame

[function] [call site] 00066


               cgif_raw_close

[function] [call site] 00067


               fclose

[call site] 00068


               freeFrame

[function] [call site] 00069


               freeCGIF

[function] [call site] 00070