Dan Fandrich
Unk at US Government
Canada
Summary
🤩
Rockstar
Top expert inComprehensive Software Development and Security Technologies
Dan Fandrich is a veteran software engineer with 33 years of experience and a long history of sustaining critical open-source infrastructure from Canada. He is a prolific committer and maintainer across widely used projects such as curl, libssh2, c-ares, and libgphoto2, focusing on robustness, portability, and security in low-level networking and system libraries. His contributions show deep expertise in debugging protocol edge cases, memory and error handling, cross-platform compatibility, and size-optimized embedded builds. Currently working for the US Government, he brings institutional-grade reliability and a pragmatic engineering style that improves long-running, mission-critical codebases. Notably, his work often targets subtle RFC-alignment and platform quirks that prevent real-world failures rather than chasing features.
33 years of coding experience
Github Skills (58)
debug10
dyndns10
gnutls10
memory-management10
c1110
standard-library10
c1710
security10
dns10
sys10
openssl10
meter10
dynamic-ip10
xml10
daemon10
Programming languages (19)
Github contributions (5)
libssh2/libssh2
Apr 2007 - Jan 2023
the SSH library
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 reviews, 48 commits, 17 PRs in 15 years 11 months
Contributions summary:Dan's commits primarily focus on improving the robustness and reliability of the libssh2 library. Key contributions include fixing a bug in `libssh2_channel_close` to align with the RFC specifications, preventing data truncation, and making better handling of out-of-memory situations. The user also modified code related to key exchange and authentication, including improvements for host-based and public key authentication packets, enhancing overall security and stability. Furthermore, the user refactored code to use `static const` for internal tables, improved error propagation, and addressed compiler warnings.
ssh-librarysftpsshforwardinglibssh2
curl/curl
Dec 2004 - Jan 2023
A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
Role in this project:Back-end Developer
Back-end DeveloperContributions:100 reviews, 1117 commits, 214 PRs in 18 years 4 months
Contributions summary:Dan contributed to the cURL project by modifying code related to various network protocols, including FTP, LDAP, and HTTP. Their work involved adding support for SFTP features, such as --append on SFTP uploads, and enhancing the existing HTTP and FTP functionalities. The contributions also focused on improving the reliability and performance of the software by addressing memory leaks, and type and syntax warnings.
rtmppop3dictscptelnet
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