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authorLukasz Majewski <lukma@denx.de>2019-10-24 16:20:56 +0200
committerLukasz Majewski <lukma@denx.de>2019-10-27 21:49:25 +0100
commit48123656609fea92a154f08ab619ab5186276432 (patch)
tree34c399889dbe5271b30b7c840f9fd048875e704f /sysdeps/unix
parent513aaa0d782f8fae36732d06ca59d658149f0139 (diff)
downloadglibc-48123656609fea92a154f08ab619ab5186276432.tar.gz
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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 <time.h> 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
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/clock_nanosleep.c3
-rw-r--r--sysdeps/unix/clock_settime.c2
-rw-r--r--sysdeps/unix/sysv/linux/clock_settime.c2
3 files changed, 3 insertions, 4 deletions
diff --git a/sysdeps/unix/clock_nanosleep.c b/sysdeps/unix/clock_nanosleep.c
index 95b4956b12..8514a439ee 100644
--- a/sysdeps/unix/clock_nanosleep.c
+++ b/sysdeps/unix/clock_nanosleep.c
@@ -30,8 +30,7 @@ __clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
 {
   struct timespec now;
 
-  if (__builtin_expect (req->tv_nsec, 0) < 0
-      || __builtin_expect (req->tv_nsec, 0) >= 1000000000)
+  if (! valid_nanoseconds (req->tv_nsec))
     return EINVAL;
 
   if (clock_id == CLOCK_THREAD_CPUTIME_ID)
diff --git a/sysdeps/unix/clock_settime.c b/sysdeps/unix/clock_settime.c
index 18d7c99864..54c917949f 100644
--- a/sysdeps/unix/clock_settime.c
+++ b/sysdeps/unix/clock_settime.c
@@ -27,7 +27,7 @@ __clock_settime (clockid_t clock_id, const struct timespec *tp)
   int retval = -1;
 
   /* Make sure the time cvalue is OK.  */
-  if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000)
+  if (! valid_nanoseconds (tp->tv_nsec))
     {
       __set_errno (EINVAL);
       return -1;
diff --git a/sysdeps/unix/sysv/linux/clock_settime.c b/sysdeps/unix/sysv/linux/clock_settime.c
index 54999d3008..bda113809b 100644
--- a/sysdeps/unix/sysv/linux/clock_settime.c
+++ b/sysdeps/unix/sysv/linux/clock_settime.c
@@ -26,7 +26,7 @@ int
 __clock_settime64 (clockid_t clock_id, const struct __timespec64 *tp)
 {
   /* Make sure the time cvalue is OK.  */
-  if (tp->tv_nsec < 0 || tp->tv_nsec >= 1000000000)
+  if (! valid_nanoseconds (tp->tv_nsec))
     {
       __set_errno (EINVAL);
       return -1;