[kronosnet/kronosnet] 187cbc: Convert time_t to unsigned long long before format...

Branch: refs/heads/wferi/time_t Home: https://github.com/kronosnet/kronosnet Commit: 187cbc452a467b321554549b73ca067f4aee3e86 https://github.com/kronosnet/kronosnet/commit/187cbc452a467b321554549b73ca0… Author: Ferenc Wágner <wferi(a)debian.org> Date: 2024-07-30 (Tue, 30 Jul 2024) Changed paths: M libknet/links.c Log Message: ----------- Convert time_t to unsigned long long before formatting Conventionally it's signed long under the GNU C library, which is 32 bits on 32-bit architectures, but Glibc provides the __TIME_BITS==64 option, which makes it signed long long instead (64 bits) and makes no difference on 64-bit architectures [1]. Since the ping_interval and pong_timeout members of struct knet_link are unsigned, we can make this conversion safe by rejecting negative values as well (besides zero). In the end this enables using the uniform %llu conversion specifier across all supported architectures. This got exposed by Debian recently transitioning to 64-bit time_t [2]. [1] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign [2] https://wiki.debian.org/ReleaseGoals/64bit-time Signed-off-by: Ferenc Wágner <wferi(a)debian.org> To unsubscribe from these emails, change your notification settings at https://github.com/kronosnet/kronosnet/settings/notifications