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linux: Allow adjtime with NULL argument [BZ #26833]

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The adjtime interface allows return the amount of time remaining
from any previous adjustment that has not yet been completed by
passing a NULL as first argument.  This was introduced with y2038
support 0308077e3a.

Checked on i686-linux-gnu.

Reviewed-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Adhemerval Zanella
2020-11-02 16:18:29 -03:00
parent 5edf3d9fd6
commit 75a193b761
3 changed files with 54 additions and 4 deletions
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11
sysdeps/unix/sysv/linux/adjtime.c
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@ -68,11 +68,16 @@ libc_hidden_def (__adjtime64)
int
__adjtime (const struct timeval *itv, struct timeval *otv)
{
struct __timeval64 itv64, otv64;
struct __timeval64 itv64, *pitv64 = NULL;
struct __timeval64 otv64;
int retval;
itv64 = valid_timeval_to_timeval64 (*itv);
retval = __adjtime64 (&itv64, otv != NULL ? &otv64 : NULL);
if (itv != NULL)
{
itv64 = valid_timeval_to_timeval64 (*itv);
pitv64 = &itv64;
}
retval = __adjtime64 (pitv64, otv != NULL ? &otv64 : NULL);
if (otv != NULL)
*otv = valid_timeval64_to_timeval (otv64);