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| author | Martin Sebor <msebor@redhat.com> | 2020-05-04 11:21:50 -0600 |
|---|---|---|
| committer | Martin Sebor <msebor@redhat.com> | 2020-05-04 11:21:50 -0600 |
| commit | 06febd8c6705c816b2f32ee7aa1f4c0184b05248 (patch) | |
| tree | 71586b8485abc1c6b220cb6aba340e76286b3087 /string/bits | |
| parent | 38c67888183db1b6ac21f2f9681b8a384987dfe8 (diff) | |
| download | glibc-06febd8c6705c816b2f32ee7aa1f4c0184b05248.zip glibc-06febd8c6705c816b2f32ee7aa1f4c0184b05248.tar.gz glibc-06febd8c6705c816b2f32ee7aa1f4c0184b05248.tar.bz2 | |
improve out-of-bounds checking with GCC 10 attribute access [BZ #25219]
Adds the access attribute newly introduced in GCC 10 to the subset of
function declarations that are already covered by _FORTIFY_SOURCE and
that don't have corresponding GCC built-in equivalents.
Reviewed-by: DJ Delorie <dj@redhat.com>
Diffstat (limited to 'string/bits')
| -rw-r--r-- | string/bits/string_fortified.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/string/bits/string_fortified.h b/string/bits/string_fortified.h index e4d07cb..309d0f3 100644 --- a/string/bits/string_fortified.h +++ b/string/bits/string_fortified.h @@ -75,7 +75,7 @@ __NTH (memset (void *__dest, int __ch, size_t __len)) # include <bits/strings_fortified.h> void __explicit_bzero_chk (void *__dest, size_t __len, size_t __destlen) - __THROW __nonnull ((1)); + __THROW __nonnull ((1)) __attr_access ((__write_only__, 1, 2)); __fortify_function void __NTH (explicit_bzero (void *__dest, size_t __len)) @@ -108,7 +108,8 @@ __NTH (strncpy (char *__restrict __dest, const char *__restrict __src, /* XXX We have no corresponding builtin yet. */ extern char *__stpncpy_chk (char *__dest, const char *__src, size_t __n, - size_t __destlen) __THROW; + size_t __destlen) __THROW + __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2)); extern char *__REDIRECT_NTH (__stpncpy_alias, (char *__dest, const char *__src, size_t __n), stpncpy); |