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clock_adjtime: Use __nonnull to avoid null pointer

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clock_adjtime()/clock_adjtime64()
Add __nonnull((2)) to avoid null pointer access.

Link: https://sourceware.org/bugzilla/show_bug.cgi?id=27662
Link: https://sourceware.org/bugzilla/show_bug.cgi?id=29084
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Xiaoming Ni
2022-05-05 11:01:10 +08:00
committed by Siddhesh Poyarekar
parent 6a9786b8ec
commit ed2ddeffa5
2 changed files with 3 additions and 3 deletions
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4
sysdeps/unix/sysv/linux/bits/time.h
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@ -75,13 +75,13 @@ extern long int __sysconf (int);
__BEGIN_DECLS __BEGIN_DECLS
/* Tune a POSIX clock. */ /* Tune a POSIX clock. */
extern int clock_adjtime (__clockid_t __clock_id, struct timex *__utx) __THROW; extern int clock_adjtime (__clockid_t __clock_id, struct timex *__utx) __THROW __nonnull((2));
#ifdef __USE_TIME_BITS64 #ifdef __USE_TIME_BITS64
# if defined(__REDIRECT_NTH) # if defined(__REDIRECT_NTH)
extern int __REDIRECT_NTH (clock_adjtime, (__clockid_t __clock_id, extern int __REDIRECT_NTH (clock_adjtime, (__clockid_t __clock_id,
struct timex *__utx), struct timex *__utx),
__clock_adjtime64); __clock_adjtime64) __nonnull((2));
# else # else
# define clock_adjtime __clock_adjtime64 # define clock_adjtime __clock_adjtime64
# endif # endif

2
sysdeps/unix/sysv/linux/include/sys/timex.h
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@ -77,7 +77,7 @@ struct __timex64
int :32; int :32;
int :32; int :32;
}; };
extern int __clock_adjtime64 (const clockid_t clock_id, struct __timex64 *tx64); extern int __clock_adjtime64 (const clockid_t clock_id, struct __timex64 *tx64) __nonnull((2));
libc_hidden_proto (__clock_adjtime64); libc_hidden_proto (__clock_adjtime64);
extern int ___adjtimex64 (struct __timex64 *tx64) __nonnull ((1)); extern int ___adjtimex64 (struct __timex64 *tx64) __nonnull ((1));
libc_hidden_proto (___adjtimex64) libc_hidden_proto (___adjtimex64)