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Description

LibFuzzer serves as an in-process, coverage-guided engine for evolutionary fuzzing. By being linked directly with the library under examination, it injects fuzzed inputs through a designated entry point, or target function, allowing it to monitor the code paths that are executed while creating variations of the input data to enhance code coverage. The coverage data is obtained through LLVM’s SanitizerCoverage instrumentation, ensuring that users have detailed insights into the testing process. Notably, LibFuzzer continues to receive support, with critical bugs addressed as they arise. To begin utilizing LibFuzzer with a library, one must first create a fuzz target—this function receives a byte array and interacts with the API being tested in a meaningful way. Importantly, this fuzz target operates independently of LibFuzzer, which facilitates its use alongside other fuzzing tools such as AFL or Radamsa, thereby providing versatility in testing strategies. Furthermore, the ability to leverage multiple fuzzing engines can lead to more robust testing outcomes and clearer insights into the library's vulnerabilities.

Description

grcov is a tool that gathers and consolidates code coverage data from various source files. It is capable of processing .profraw and .gcda files produced by llvm/clang or gcc compilers. Additionally, grcov can handle lcov files for JavaScript coverage and JaCoCo files for Java applications. This versatile tool is compatible with operating systems including Linux, macOS, and Windows, making it widely accessible for developers across different platforms. Its functionality enhances the ability to analyze code quality and test coverage effectively.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

C Yes 
C++ Yes 
Atheris Yes 
ClusterFuzz Yes 
Codecov No 
Coveralls No 
Fuzzbuzz Yes 
GitHub No 
GitLab No 
Google ClusterFuzz Yes 
HTML No 
JSON No 
JaCoCo No 
Jazzer Yes 
Mozilla Firefox No 
Netlify No 
Rust No 
Travis CI No 
XML Notepad No 

Integrations

C Yes 
C++ Yes 
Atheris No 
ClusterFuzz No 
Codecov Yes 
Coveralls Yes 
Fuzzbuzz No 
GitHub Yes 
GitLab Yes 
Google ClusterFuzz No 
HTML Yes 
JSON Yes 
JaCoCo Yes 
Jazzer No 
Mozilla Firefox Yes 
Netlify Yes 
Rust Yes 
Travis CI Yes 
XML Notepad Yes 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac No 
Linux Yes 
Chromebook No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

LLVM Project

Founded

2003

Website

llvm.org/docs/LibFuzzer.html

Vendor Details

Company Name

grcov

Website

github.com/mozilla/grcov

Product Features

Product Features

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