High level conclusions

Reachability and coverage overview

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

Fuzzer: /src/inchi_input_fuzzer.c

Call tree

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

/src/inchi_input_fuzzer.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

New fuzzers

The below fuzzers are templates and suggestions for how to target the set of optimal functions above

ichimain.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target ProcessMultipleInputFiles */
  int new_var0 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_1;
  ProcessMultipleInputFiles(new_var0, unknown_1);

  af_safe_gb_cleanup();
}

ichinorm.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target mark_atoms_deriv */
  UNKNOWN_TYPE unknown_2;
  UNKNOWN_TYPE unknown_3;
  int new_var4 = ada_safe_get_int();
  int new_var5 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_6;
  int *new_var7 = af_get_int_p();
  mark_atoms_deriv(unknown_2, unknown_3, new_var4, new_var5, unknown_6, new_var7);

  af_safe_gb_cleanup();
}

ichiprt1.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target OutputAUXINFO_IsotopicInfo */
  UNKNOWN_TYPE unknown_8;
  UNKNOWN_TYPE unknown_9;
  UNKNOWN_TYPE unknown_10;
  int *new_var11 = af_get_int_p();
  UNKNOWN_TYPE unknown_12;
  char *new_var13 = ada_safe_get_char_p();
  char *new_var14 = ada_safe_get_char_p();
  OutputAUXINFO_IsotopicInfo(unknown_8, unknown_9, unknown_10, new_var11, unknown_12, new_var13, new_var14);

  af_safe_gb_cleanup();
}

ixa_read_inchi.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target IXA_MOL_ReadAuxInfo */
  UNKNOWN_TYPE unknown_15;
  UNKNOWN_TYPE unknown_16;
  char *new_var17 = ada_safe_get_char_p();
  int new_var18 = ada_safe_get_int();
  int new_var19 = ada_safe_get_int();
  IXA_MOL_ReadAuxInfo(unknown_15, unknown_16, new_var17, new_var18, new_var19);

  af_safe_gb_cleanup();
}

e_0dstereo.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target set_0D_stereo_parities */
  UNKNOWN_TYPE unknown_20;
  int new_var21 = ada_safe_get_int();
  set_0D_stereo_parities(unknown_20, new_var21);

  af_safe_gb_cleanup();
}

aux2atom.h

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target INChIToInchi_Input */
  UNKNOWN_TYPE unknown_22;
  UNKNOWN_TYPE unknown_23;
  int new_var24 = ada_safe_get_int();
  int new_var25 = ada_safe_get_int();
  int new_var26 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_27;
  char *new_var28 = ada_safe_get_char_p();
  char *new_var29 = ada_safe_get_char_p();
  UNKNOWN_TYPE unknown_30;
  UNKNOWN_TYPE unknown_31;
  int *new_var32 = af_get_int_p();
  char *new_var33 = ada_safe_get_char_p();
  INChIToInchi_Input(unknown_22, unknown_23, new_var24, new_var25, new_var26, unknown_27, new_var28, new_var29, unknown_30, unknown_31, new_var32, new_var33);

  af_safe_gb_cleanup();
}

ichican2.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target GetCanonRanking2 */
  int new_var34 = ada_safe_get_int();
  int new_var35 = ada_safe_get_int();
  int new_var36 = ada_safe_get_int();
  int new_var37 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_38;
  UNKNOWN_TYPE unknown_39;
  int new_var40 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_41;
  UNKNOWN_TYPE unknown_42;
  UNKNOWN_TYPE unknown_43;
  UNKNOWN_TYPE unknown_44;
  UNKNOWN_TYPE unknown_45;
  GetCanonRanking2(new_var34, new_var35, new_var36, new_var37, unknown_38, unknown_39, new_var40, unknown_41, unknown_42, unknown_43, unknown_44, unknown_45);

  af_safe_gb_cleanup();
}

inchi_dll_b.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target InchiToInchiAtom */
  UNKNOWN_TYPE unknown_46;
  UNKNOWN_TYPE unknown_47;
  int *new_var48 = af_get_int_p();
  int new_var49 = ada_safe_get_int();
  int new_var50 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_51;
  UNKNOWN_TYPE unknown_52;
  int new_var53 = ada_safe_get_int();
  int *new_var54 = af_get_int_p();
  int *new_var55 = af_get_int_p();
  char *new_var56 = ada_safe_get_char_p();
  char *new_var57 = ada_safe_get_char_p();
  UNKNOWN_TYPE unknown_58;
  UNKNOWN_TYPE unknown_59;
  int *new_var60 = af_get_int_p();
  char *new_var61 = ada_safe_get_char_p();
  InchiToInchiAtom(unknown_46, unknown_47, new_var48, new_var49, new_var50, unknown_51, unknown_52, new_var53, new_var54, new_var55, new_var56, new_var57, unknown_58, unknown_59, new_var60, new_var61);

  af_safe_gb_cleanup();
}

ichimap2.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target RemoveCalculatedNonStereo */
  UNKNOWN_TYPE unknown_62;
  UNKNOWN_TYPE unknown_63;
  int new_var64 = ada_safe_get_int();
  int new_var65 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_66;
  UNKNOWN_TYPE unknown_67;
  UNKNOWN_TYPE unknown_68;
  UNKNOWN_TYPE unknown_69;
  UNKNOWN_TYPE unknown_70;
  UNKNOWN_TYPE unknown_71;
  UNKNOWN_TYPE unknown_72;
  UNKNOWN_TYPE unknown_73;
  int new_var74 = ada_safe_get_int();
  RemoveCalculatedNonStereo(unknown_62, unknown_63, new_var64, new_var65, unknown_66, unknown_67, unknown_68, unknown_69, unknown_70, unknown_71, unknown_72, unknown_73, new_var74);

  af_safe_gb_cleanup();
}

dispstru.c

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target WndProcDisplayInputStructure */
  UNKNOWN_TYPE unknown_75;
  UNKNOWN_TYPE unknown_76;
  UNKNOWN_TYPE unknown_77;
  UNKNOWN_TYPE unknown_78;
  WndProcDisplayInputStructure(unknown_75, unknown_76, unknown_77, unknown_78);

  af_safe_gb_cleanup();
}

Files in report

Directories in report

This section shows a list of 3rd party function calls and their relative coverage information. By static analysis of the target project code, all of the 3rd party function call and their caller information, including the source file and line number that initiate the call are captured. The caller source code file and line number are shown in column 2 while column 1 is the function name of the 3rd party function call. Each occurrent of the 3rd party function call will occuply a separate row. Column 3 of each row indicate if the 3rd party call in the source file line is unreachable. Column 4 lists all fuzzers that have covered that particular system call in that specific location (source file and line)during their dynamic fuzzing.

Function in each files in report