libubox, branch master

uloop: revert my flag changes from the ULOOP_PRIORITY change

2026-03-21T04:01:38Z

ULOOP_ERROR_CB was accidentally renumbered because it was declared after the internal flags. Move the flags, and preserve the bit values in order to avoid unnecesary ABI churn Signed-off-by: Felix Fietkau

uloop: add ULOOP_PRIORITY support for EPOLLPRI events

2026-03-20T19:55:30Z

Add a new ULOOP_PRIORITY flag to enable subscription to and delivery of EPOLLPRI events from the Linux kernel. These interfaces include: - /proc/pressure/{cpu,memory,io} — PSI threshold monitoring - /proc/mounts — mount/unmount change notifications - /proc/mdstat — software RAID state changes - sysfs attributes using sysfs_notify() (GPIO, hwmon, etc.) Signed-off-by: Matthew Cather Signed-off-by: Felix Fietkau

CMakeLists.txt: remove -Werror=format-nonliteral

2026-03-12T23:02:08Z

The musl libc fortify source headers are using a nonliteral format string in the sprintf() and snprintf() function. Do not fail in libubox. Not everyone is using the workaround in fortify source headers. Signed-off-by: Hauke Mehrtens

usock: implement RFC 8305 Happy Eyeballs for usock_inet_timeout()

2026-02-13T09:02:57Z

Replace the two-slot (one v6 + one v4) connection attempt logic with a multi-address interleaved approach per RFC 8305: - Collect all resolved addresses and interleave them by family (v6 first, then alternating v4/v6) using up to 8 candidates - Stagger connection attempts with 250ms delay between each - On connection error (SO_ERROR), immediately remove the failed socket and continue with remaining candidates - First successful connection wins; all other sockets are closed This handles hosts with multiple addresses per family, which the previous code discarded. Fixes: https://github.com/openwrt/uclient/issues/8 Signed-off-by: Felix Fietkau

usock: fix timeout handling in usock_inet_timeout()

2026-02-13T09:02:45Z

Replace relative timeout arithmetic with an absolute CLOCK_MONOTONIC deadline computed once at function entry. This avoids the case where the IPv6 head-start delay subtraction produces a negative timeout for the subsequent combined poll, causing it to return immediately. Also give IPv6 a head start of min(300ms, remaining_timeout) instead of skipping the head start entirely when the total timeout is <= 300ms. Signed-off-by: Felix Fietkau

usock: check SO_ERROR after poll in usock_inet_timeout()

2026-02-13T09:02:45Z

After poll() returns with POLLOUT on a non-blocking connect, the connection may have failed (ECONNREFUSED, ENETUNREACH, etc.). Check the socket error via getsockopt(SO_ERROR) before accepting the connection as successful. Without this, a fast-failing IPv6 connection would be returned to the caller instead of falling back to IPv4. Signed-off-by: Felix Fietkau

uloop: use volatile sig_atomic_t for do_sigchld flag

2026-02-13T09:02:45Z

This flag is written from signal handler context and read from main loop. Using plain bool violates POSIX signal safety requirements. Signed-off-by: Felix Fietkau

libubox: add anonymous strings, ints, et al in arrays

2026-02-12T15:57:28Z

You can have a "name" in an array member without an associated value. Signed-off-by: Philip Prindeville Link: https://github.com/openwrt/libubox/pull/12 Signed-off-by: Robert Marko

libubox: document positional arguments

2026-02-12T15:57:28Z

Use local variables for positional arguments where they're captured, and provide comments for position arguments. Signed-off-by: Philip Prindeville Link: https://github.com/openwrt/libubox/pull/12 Signed-off-by: Robert Marko

libubox: send warnings to stderr

2026-02-12T15:57:28Z

Errors are sent to stderr in all but once place. Signed-off-by: Philip Prindeville Link: https://github.com/openwrt/libubox/pull/12 Signed-off-by: Robert Marko