uNetworking/uSockets

View on GitHub

Miniscule cross-platform eventing, networking & crypto for async applications

Stars: 1.5k
Forks: 307
Open beginner issues: 0
Indexed issues: 37

Dominant language: C
License: Apache-2.0
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

37 open issues indexed

`connect()` blocks for ~21 seconds on Windows when server is unreachable (SYN dropped) Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

uNetworking/uSockets#259 · Opened Sep 8, 2026
`on_open` incorrectly called on Windows when TCP connection is refused (RST) Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

uNetworking/uSockets#258 · Opened Sep 8, 2026
udp_benchmark can work on mac os Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

uNetworking/uSockets#256 · 1 reaction · Opened Jul 10, 2026
Unbounded strcpy into sockaddr_un.sun_path in bsd_create_listen_socket_unix / bsd_create_connect_socket_unix (stack buffer overflow) Open

enhancement help wanted

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

uNetworking/uSockets#252 · 5 comments · Opened Jun 2, 2026
Disable logs ("finding/Browsed to SNI") Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

uNetworking/uSockets#255 · 2 comments · 1 reaction · Opened Mar 25, 2026
The us_socket_context_connect function is not working properly. Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

uNetworking/uSockets#250 · Opened Mar 9, 2026
Liburing, HTTP/2, KTLS Support (FORK) Created Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

uNetworking/uSockets#247 · 4 comments · Opened Oct 28, 2025
Issue with performance and compilation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

uNetworking/uSockets#246 · 5 comments · Opened Aug 9, 2025
Modernize source for Openssl # Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

uNetworking/uSockets#242 · 2 reactions · Opened Jun 14, 2025
Is is possible to load security data from memory ? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

uNetworking/uSockets#238 · 1 reaction · Opened Mar 3, 2025
us_listen_socket_close crashes with memory error Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

uNetworking/uSockets#237 · Opened Jan 20, 2025
Debug stuff left in Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

uNetworking/uSockets#236 · 2 comments · Opened Dec 29, 2024
Using SNI switching does not work if client verification is used in one of the "virtual" servers Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

uNetworking/uSockets#234 · Opened Dec 14, 2024
Compilation issue when using WSL Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

uNetworking/uSockets#223 · 1 comment · 2 reactions · Opened Jun 16, 2024
Update boringSSL Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

uNetworking/uSockets#221 · 5 comments · 2 reactions · Opened Mar 31, 2024
Failed to bind to 0.0.0.0 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

uNetworking/uSockets#219 · 1 comment · Opened Feb 15, 2024
works with letsencrypt ? Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

uNetworking/uSockets#218 · 3 comments · Opened Feb 12, 2024
Build fails without -fPIC flag supplied from outside Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

uNetworking/uSockets#217 · Opened Feb 3, 2024
Tests fail to compile: error: comparison between pointer and integer ('void *' and 'int') Open

Difficulty 2/5 1-3 hours Newbie friendliness 30/100

uNetworking/uSockets#213 · 2 comments · Opened Jan 10, 2024
Memory leak in us_create_timer Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

uNetworking/uSockets#211 · 1 comment · Opened Nov 2, 2023
Server fails to bind localhost in container Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

uNetworking/uSockets#209 · 1 reaction · Opened Sep 15, 2023
us_socket_context_connect timeout Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

uNetworking/uSockets#208 · 6 comments · Opened Sep 4, 2023
Error initializing structure msg_hdr by UDP, field msg_name Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

uNetworking/uSockets#207 · Opened Sep 4, 2023
Consider `sendto$NOCANCEL` on macOS to avoid EINTR Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

uNetworking/uSockets#174 · Opened Apr 5, 2022
Port DH params to OpenSSL 3.0 Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

uNetworking/uSockets#164 · 2 reactions · Opened Oct 22, 2021
typedef structs Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

uNetworking/uSockets#151 · 1 reaction · Opened Jul 20, 2021
closeOnBackpressureLimit on Windows Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

uNetworking/uSockets#148 · 1 comment · Opened Jun 18, 2021
Add mocking of SSL Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

uNetworking/uSockets#137 · Opened Dec 19, 2020
App construction failed error occurs when trying to go up a directory when specifying key/cert name Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

uNetworking/uSockets#131 · 1 comment · 3 reactions · Opened Nov 6, 2020
WOLFSSL build is broken Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

uNetworking/uSockets#111 · 9 comments · 2 reactions · Opened Jun 26, 2020
when using epoll, I guess any fallthrough-poll should not be closed? Open

bug wontfix

Difficulty 3/5 1-2 days Newbie friendliness 25/100

uNetworking/uSockets#52 · 2 comments · Opened May 1, 2019
Non-blocking DNS Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

uNetworking/uSockets#29 · 1 comment · Opened Jan 21, 2019
Go through all alignment issues Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

uNetworking/uSockets#28 · Opened Jan 21, 2019
Rate limiting Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

uNetworking/uSockets#27 · 3 reactions · Opened Jan 10, 2019
us_loop_on_sample_load and better multithreading Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

uNetworking/uSockets#17 · 18 comments · Opened Nov 7, 2018
us_socket_write should return -1 on error, not 0 Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

uNetworking/uSockets#11 · Opened Sep 30, 2018
Optional reference counting Open

enhancement wontfix

Difficulty 5/5 Over a week Newbie friendliness 25/100

uNetworking/uSockets#10 · 2 comments · Opened Sep 29, 2018

uNetworking/uSockets

Get new issues in your inbox