From 48123656609fea92a154f08ab619ab5186276432 Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Thu, 24 Oct 2019 16:20:56 +0200 Subject: time: Introduce function to check correctness of nanoseconds value The valid_nanoseconds () static inline function has been introduced to check if nanoseconds value is in the correct range - greater or equal to zero and less than 1000000000. The explicit #include has been added to files where it was missing. The __syscall_slong_t type for ns has been used to avoid issues on x32. Tested with: - scripts/build-many-glibcs.py - make PARALLELMFLAGS="-j12" && make PARALLELMFLAGS="-j12" xcheck on x86_64 --- include/time.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/time.h b/include/time.h index d93b16a781..1f6507ef5f 100644 --- a/include/time.h +++ b/include/time.h @@ -236,5 +236,13 @@ valid_timespec64_to_timeval (const struct __timespec64 ts64) return tv; } + +/* Check if a value is in the valid nanoseconds range. Return true if + it is, false otherwise. */ +static inline bool +valid_nanoseconds (__syscall_slong_t ns) +{ + return __glibc_likely (0 <= ns && ns < 1000000000); +} #endif #endif -- cgit 1.4.1